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CN119610817A - Environment-friendly automotive interior ceiling and preparation method thereof - Google Patents

Environment-friendly automotive interior ceiling and preparation method thereof Download PDF

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Publication number
CN119610817A
CN119610817A CN202510149333.9A CN202510149333A CN119610817A CN 119610817 A CN119610817 A CN 119610817A CN 202510149333 A CN202510149333 A CN 202510149333A CN 119610817 A CN119610817 A CN 119610817A
Authority
CN
China
Prior art keywords
fiber felt
pet fiber
glue
interior ceiling
environment
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN202510149333.9A
Other languages
Chinese (zh)
Other versions
CN119610817B (en
Inventor
孙晶
韦明
朱维珍
董志方
张慧
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Yantai Zhenghai High Technology Co ltd
Original Assignee
Yantai Zhenghai High Technology Co ltd
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Publication date
Application filed by Yantai Zhenghai High Technology Co ltd filed Critical Yantai Zhenghai High Technology Co ltd
Priority to CN202510149333.9A priority Critical patent/CN119610817B/en
Publication of CN119610817A publication Critical patent/CN119610817A/en
Application granted granted Critical
Publication of CN119610817B publication Critical patent/CN119610817B/en
Active legal-status Critical Current
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/22—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed
    • B32B5/24—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer
    • B32B5/26—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer another layer next to it also being fibrous or filamentary
    • B32B5/265—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer another layer next to it also being fibrous or filamentary characterised by one fibrous or filamentary layer being a non-woven fabric layer
    • B32B5/266—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer another layer next to it also being fibrous or filamentary characterised by one fibrous or filamentary layer being a non-woven fabric layer next to one or more non-woven fabric layers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
    • B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
    • B29C70/28—Shaping operations therefor
    • B29C70/30—Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or core; Shaping by spray-up, i.e. spraying of fibres on a mould, former or core
    • B29C70/34—Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or core; Shaping by spray-up, i.e. spraying of fibres on a mould, former or core and shaping or impregnating by compression, i.e. combined with compressing after the lay-up operation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
    • B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
    • B29C70/28—Shaping operations therefor
    • B29C70/54—Component parts, details or accessories; Auxiliary operations, e.g. feeding or storage of prepregs or SMC after impregnation or during ageing
    • B29C70/545—Perforating, cutting or machining during or after moulding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/12—Layered products comprising a layer of synthetic resin next to a fibrous or filamentary layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/30—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers
    • B32B27/304—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers comprising vinyl halide (co)polymers, e.g. PVC, PVDC, PVF, PVDF
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/0038—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding involving application of liquid to the layers prior to lamination, e.g. wet laminating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/06—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the heating method
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/10—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the pressing technique, e.g. using action of vacuum or fluid pressure
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/12—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by using adhesives
    • B32B37/1284—Application of adhesive
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
    • B32B7/04—Interconnection of layers
    • B32B7/12—Interconnection of layers using interposed adhesives or interposed materials with bonding properties
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R13/00—Elements for body-finishing, identifying, or decorating; Arrangements or adaptations for advertising purposes
    • B60R13/02—Internal Trim mouldings ; Internal Ledges; Wall liners for passenger compartments; Roof liners
    • B60R13/0212—Roof or head liners
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M13/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment
    • D06M13/10—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment with compounds containing oxygen
    • D06M13/144—Alcohols; Metal alcoholates
    • D06M13/148—Polyalcohols, e.g. glycerol or glucose
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M13/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment
    • D06M13/10—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment with compounds containing oxygen
    • D06M13/184—Carboxylic acids; Anhydrides, halides or salts thereof
    • D06M13/207—Substituted carboxylic acids, e.g. by hydroxy or keto groups; Anhydrides, halides or salts thereof
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M15/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
    • D06M15/01—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with natural macromolecular compounds or derivatives thereof
    • D06M15/03—Polysaccharides or derivatives thereof
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M15/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
    • D06M15/19—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with synthetic macromolecular compounds
    • D06M15/37—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • D06M15/53—Polyethers
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
    • D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
    • D06N3/0002—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the substrate
    • D06N3/0011—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the substrate using non-woven fabrics
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
    • D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
    • D06N3/12—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. gelatine proteins
    • D06N3/14—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. gelatine proteins with polyurethanes
    • D06N3/145—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. gelatine proteins with polyurethanes two or more layers of polyurethanes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/30—Vehicles, e.g. ships or aircraft, or body parts thereof
    • B29L2031/3005—Body finishings
    • B29L2031/3011—Roof linings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/58—Upholstery or cushions, e.g. vehicle upholstery or interior padding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/02—Synthetic macromolecular fibres
    • B32B2262/0276—Polyester fibres
    • B32B2262/0284—Polyethylene terephthalate [PET] or polybutylene terephthalate [PBT]
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/50—Properties of the layers or laminate having particular mechanical properties
    • B32B2307/51—Elastic
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/50—Properties of the layers or laminate having particular mechanical properties
    • B32B2307/554—Wear resistance
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/50—Properties of the layers or laminate having particular mechanical properties
    • B32B2307/558—Impact strength, toughness
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2605/00—Vehicles
    • B32B2605/003—Interior finishings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2605/00—Vehicles
    • B32B2605/08—Cars
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M2101/00—Chemical constitution of the fibres, threads, yarns, fabrics or fibrous goods made from such materials, to be treated
    • D06M2101/16—Synthetic fibres, other than mineral fibres
    • D06M2101/30—Synthetic polymers consisting of macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • D06M2101/32—Polyesters

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Composite Materials (AREA)
  • Health & Medical Sciences (AREA)
  • Emergency Medicine (AREA)
  • Dispersion Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Vehicle Interior And Exterior Ornaments, Soundproofing, And Insulation (AREA)

Abstract

The application relates to the field of processing of layered inner decorative ceilings, and particularly discloses an environment-friendly automotive inner decorative ceiling and a preparation method thereof, wherein the environment-friendly automotive inner decorative ceiling sequentially comprises a base cloth, a glue-coated PET fiber felt, the base cloth, an adhesive and a surface decorative layer from bottom to top, the base cloth adopts any one of non-woven fabrics or laminated non-woven fabrics, the preparation method comprises the steps of coating polyurethane glue on the upper surface and the lower surface of the PET fiber felt to obtain the glue-coated PET fiber felt, spraying water on the glue-coated PET fiber felt, attaching the base cloth, hot-pressing at the temperature of 100-140 ℃ for 40-120s, cooling to obtain a semi-finished product, spraying the adhesive on the semi-finished product, paving the surface decorative layer for 20-100s after cooling, and cutting, edge wrapping and post-processing to obtain the finished product.

Description

Environment-friendly automotive interior ceiling and preparation method thereof
Technical Field
The application relates to the field of processing of layered interior ceilings, in particular to an environment-friendly automobile interior ceiling and a preparation method thereof.
Background
The automobile interior ceiling is an important component part of the automobile interior space, is usually positioned at the top of a carriage and is connected with the roof part, and is mainly composed of materials such as fabric, base material, filler and the like, and has various functions such as decoration, sound absorption, heat insulation, shading, safety and the like.
At present, the production processes of automobile roofs in the market mainly comprise a dry process and a wet process, wherein the structures of the dry process and the wet process are respectively non-woven fabrics/glass fibers/PE powder/adhesive film/PU foaming sheets (33-40 kg/m 3), or glass fibers/PE powder and non-woven fabrics/glass fiber felt/adhesive/PU foaming sheets (16-26 kg/m 3)/adhesive/glass fiber felt/non-woven fabrics, the glass fibers and the glass fiber felt have certain harm to human skin in the production process, the PE powder pollutes the environment, the PU foaming sheets are easy to volatilize volatile substances with odor, and the produced interior decoration products not only influence the air quality in automobiles, but also influence the driving experience and physical and psychological health of consumers, and meanwhile, the surrounding environment is also influenced in the manufacturing process.
Therefore, how to prepare a new automotive interior ceiling has the advantages of environmental protection, no pollution in the production process, no influence on the health of users, recovery benefit and long service life, and is a problem to be solved.
Disclosure of Invention
The application provides an environment-friendly automotive interior ceiling and a preparation method thereof, in order to prepare a novel automotive interior ceiling, and the novel automotive interior ceiling has the advantages of being environment-friendly, free of pollution in the production process, free of influence on the health of a user, beneficial to recovery and long in service life.
In a first aspect, the application provides an environment-friendly automotive interior ceiling, which adopts the following technical scheme:
the environment-friendly automotive interior ceiling sequentially comprises base cloth, a glue-coated PET fiber felt, base cloth, an adhesive and a surface decoration layer from bottom to top, wherein the base cloth is made of any one of non-woven fabrics, laminated non-woven fabrics or laminated non-woven fabrics, and the glue-coated PET fiber felt is prepared by coating polyurethane glue on two sides of the PET fiber felt.
Through adopting above-mentioned technical scheme to the non-woven fabrics distributes as the base cloth and covers the both sides face of gluing PET fibrofelt, then glues the adhesive, laminating surface decoration layer at last, utilizes the better viscidity effect of polyurethane glue to and the better elastic action of self, can prepare the better automotive interior ceiling of pliability, and polyurethane glue, non-woven fabrics and other materials, have green's characteristics, and be difficult for producing the pollution in the production process, be difficult for influencing user's health, stable bonding avoids appearing the layer peeling problem as far as possible between each layer simultaneously, thereby lengthen the life of interior ceiling, still have the advantage of being convenient for retrieve.
Preferably, the PET fiber felt is prepared by mixing 10-20% of low-melting-point polyester fibers and 80-90% of conventional polyester fibers by mass percent, opening, carding, lapping, hot pressing, qualitative, scalding and slicing to obtain PET fiber felt blank, treating the PET fiber felt blank with citric acid solution, leaching, air-drying, treating with polyethylene glycol ethanol solution, washing with water and drying.
Through adopting above-mentioned technical scheme, low-melting polyester fiber and conventional polyester fiber cooperate, and low-melting polyester fiber can reduce the energy consumption in the hot melt molding in-process to improve the processing effect, low-melting polyester fiber can be regarded as the binder simultaneously, improves PET fibrofelt's bonding stability, and conventional polyester fiber has higher intensity and wearability, can improve PET fibrofelt's durability, thereby guarantees that finished product interior ceiling has longer life.
After the PET fiber felt blank is treated by the citric acid solution, impurities are removed conveniently, the hydrophilicity of the fiber felt blank can be improved, carboxyl groups in the citric acid can be connected with polar groups carboxyl groups, hydroxyl groups and the like of PET fibers to form hydrogen bonds, so that more hydrophilic groups are introduced to the surfaces of the fibers, polyurethane glue is adsorbed conveniently, the adhesion stability and the fastness of the polyurethane glue on the surfaces of the PET fiber felt are improved, the PET fiber felt treated by the citric acid has a good antistatic effect, the antistatic effect of an interior ceiling is improved, the adsorption influence of dust is reduced, and the quality of the interior ceiling is ensured.
After the citric acid solution is treated, the polyethylene glycol ethanol solution is adopted, the fiber filaments on the surface of the PET fiber felt can be uniformly dispersed and are not adhered to each other by utilizing the good flowing dispersion effect of the polyethylene glycol ethanol solution, and the PET fiber felt is ensured to be contacted with the polyurethane glue with a large contact area, so that the adhesion stability of the polyurethane glue on the surface of the PET fiber felt is improved, the service life of an automotive interior ceiling is prolonged, and the problem of layer stripping is not easy to occur.
Preferably, the polyethylene glycol ethanol solution is prepared from polyethylene glycol 1000 ethanol solution, cetostearyl alcohol and chitosan microspheres with the mass fraction of 1% in the mass ratio of 1:0.1-0.15:0.05-0.1.
Through adopting above-mentioned technical scheme, utilize the flow lubrication effect of cetylstearyl alcohol, the polyethylene glycol ethanol solution of lower mass fraction, lower molecular weight of cooperation not only is convenient for chitosan microsphere even with the cellosilk contact of PET fibrofelt, but also can improve the smooth effect of polyurethane glue in the rubber coating process, reduce and smear the resistance, guarantee to smear the degree of consistency.
The chitosan particles have better hydrophilic effect and adsorption effect, and after the chitosan particles are contacted with the polyurethane glue, the hydroxyl groups of polyethylene glycol, the hydroxyl groups of cetostearyl alcohol and the amino groups and carboxyl groups of the chitosan particles are matched with the porous adsorption effect of the chitosan particles, so that the polyurethane glue can be adsorbed, and simultaneously can be crosslinked with the hydroxyl groups and isocyanate groups in the polyurethane glue, thereby further improving the adsorption effect and the adhesion fastness of the polyurethane glue on the surface of the PET fiber mat.
Preferably, the chitosan microsphere is prepared from a fucoidan liquid supported by chitosan microsphere with a mass ratio of 1:0.1-0.2.
By adopting the technical scheme, after the chitosan microspheres are loaded with the fucoidan, the chitosan microspheres and the fucoidan are insoluble in ethanol, so that the chitosan microspheres are conveniently attached to the fiber filament surfaces of the PET fiber mats, and after the polyurethane glue is coated, the hydrophilic viscosity of the fucoidan and the crosslinking effect of the chitosan microspheres and the polyurethane are utilized, so that the adhesion stability of the polyurethane glue on the PET fiber mats is further improved, and the service life of the interior ceiling is prolonged.
Preferably, the polyurethane glue comprises the following raw materials in parts by weight:
30-50 parts of polyester polyol, 40-60 parts of polyether polyol, 0.2-0.8 part of catalyst, 50-90 parts of isocyanate, 0.5-1 part of cross-linking agent, 1-3 parts of flow promoter, 1-3 parts of styrene-butadiene rubber coated sodium alginate and 1-2 parts of shellac carrier microcrystalline cellulose.
By adopting the technical scheme, styrene-butadiene rubber coated sodium alginate and shellac loaded microcrystalline cellulose are matched, in the preparation process of polyurethane glue, the viscosity of polyurethane glue in the gluing process is not affected by the styrene-butadiene rubber and shellac blocked sodium alginate and microcrystalline cellulose, so that the polyurethane glue can be uniformly and stably coated on the surface of the PET fiber felt, and in the heat curing stage of the polyurethane glue, the styrene-butadiene rubber and shellac can be crosslinked with substances such as polyester polyol, polyether polyol and isocyanate, so that the viscosity of the polyurethane glue is improved, the bonding effect of the polyurethane glue and the PET fiber felt is improved, the base cloth and the PET fiber felt have better adhesive stability, and the service life of an interior ceiling is prolonged.
Preferably, the styrene-butadiene rubber coated sodium alginate is prepared from styrene-butadiene rubber liquid and sodium alginate particles in a mass ratio of 1:0.5-1.
Through adopting above-mentioned technical scheme, the sodium alginate microparticle that styrene-butadiene rubber was blocked, at the thermosetting stage, after the styrene-butadiene rubber hot melt, the sodium alginate can adsorb the moisture of spraying to with other components crosslinking that contain substances such as carboxyl, hydroxyl in the polyurethane glue, improve the viscosity of polyurethane glue after the coating, guarantee the bonding effect of base cloth and PET fibrofelt, be difficult for appearing layering problem, extension interior ceiling's life.
Preferably, the shellac-loaded microcrystalline cellulose is prepared from shellac-loaded polyvinyl alcohol solution and microcrystalline cellulose in a mass ratio of 1:0.5-1:1-1.5.
Through adopting above-mentioned technical scheme, the viscosity of polyvinyl alcohol solution is utilized on shellac surface, load microcrystalline cellulose, at the stage of spraying water, microcrystalline cellulose absorbs water, improve the viscosity of polyurethane, and in the thermosetting process, shellac hot melt increases the viscosity, and hydroxyl in the polyvinyl alcohol and the hydroxyl in microcrystalline cellulose, further improve the crosslinked density, thereby further improve the viscosity of polyurethane glue, guarantee polyurethane glue and stabilize the bonding on PET fibrofelt surface, thereby make base cloth and PET fibrofelt stable bonding, be difficult for appearing layering problem, the life of extension interior ceiling.
Preferably, the polyester polyol is one or more of 205U, 205UC, 210CP and 220UA, the polyether polyol is one or more of DL-2000, 210, diethylene glycol, ethylene glycol, glycerol and 330N, the isocyanate is one or more of PM200, PM400, PM600 and M20S, and the catalyst is one or more of T12, T120, A33 and DE0A, TE A.
By adopting the technical scheme, the polyurethane glue has better adhesion effect and coating effect.
In a second aspect, the application provides a method for preparing an environment-friendly automotive interior ceiling, which adopts the following technical scheme:
The preparation method of the environment-friendly automotive interior ceiling comprises the following steps:
s1, uniformly coating polyurethane glue on the upper surface and the lower surface of a PET fiber felt to obtain a glue-coated PET fiber felt;
S2, uniformly spraying water on the upper surface and the lower surface of the glue-coated PET fiber felt, attaching a base cloth, hot-press molding for 40-120S at the temperature of 100-140 ℃, and cooling to obtain a semi-finished product;
S3, uniformly spraying an adhesive on the upper surface of the semi-finished product, paving a surface decorative layer, hot-pressing for 20-100S at the temperature of 90-120 ℃, cooling, cutting, edge covering and post-processing to obtain the finished automobile ceiling.
Through adopting above-mentioned technical scheme, after coating polyurethane glue, cooperation water spray treatment further improves polyurethane glue and PET fibrofelt surface chitosan microsphere, and the bonding effect of cellosilk surface hydroxyl and carboxyl, be convenient for embryo cloth and PET fibrofelt closely bond to have certain water resistance, dampproofing, still have better pliability and intensity, can improve the life of interior ceiling.
The polyurethane glue is hot-pressed and molded under the condition of higher temperature, so that the polyurethane glue can be solidified, and simultaneously, the polyurethane glue and substances such as hydroxyl, carboxyl, chitosan microspheres and the like on the surface of the PET fiber felt can be mutually crosslinked, and meanwhile, the styrene-butadiene rubber and shellac can be hot-melted in the solidification process of the polyurethane glue, so that the viscosity is further improved, the structural stability of the interior ceiling is ensured, the layering problem is not easy to occur, and the service life of the interior ceiling is prolonged.
Preferably, the polyurethane glue is prepared by the following method:
heating polyester polyol and polyether polyol at 60-80 ℃ and vacuum degree of 0.05-0.1MPa for 1-3h under negative pressure, adding isocyanate, catalyst, cross-linking agent and flow promoter, reacting for 1-4h at 80-90 ℃, adding styrene-butadiene rubber coated sodium alginate, shellac-loaded microcrystalline cellulose and water at 80-85 ℃, mixing and stirring for 20-30min, and finally vacuum-pumping for 1-2h to obtain the final product polyurethane glue.
Through the technical scheme, the polyurethane glue has the advantages that the crosslinking effect of polyurethane is guaranteed through reaction at the temperature of 80-90 ℃, the smooth coating effect of the polyurethane glue on the surface of the PET fiber felt is guaranteed under the action of the flow promoter, the production effect is guaranteed, meanwhile, the coating uniformity is guaranteed, then the styrene-butadiene rubber coated sodium alginate and shellac loaded microcrystalline cellulose are added at the temperature of 80-85 ℃, the styrene-butadiene rubber and shellac are not easy to melt so as to influence the coating fluidity of the polyurethane, and the styrene-butadiene rubber and shellac are gradually softened and melted in the subsequent temperature rise and solidification process, so that the bonding effect of the polyurethane glue is guaranteed, the adhesive stability of the base cloth and the PET fiber felt is improved, and the service life of an interior ceiling is prolonged.
In summary, the application has the following beneficial effects:
1. The non-woven fabrics are used as base fabrics to be distributed on two side surfaces of the glue-coated PET fiber felt, then the adhesive is bonded, and finally the surface decoration layer is bonded, so that the good adhesive effect of the polyurethane glue and the good elastic effect of the polyurethane glue are utilized, the automobile interior ceiling with good flexibility can be prepared, and materials such as the polyurethane glue and the non-woven fabrics have the characteristics of green and environment protection, pollution is not easy to generate in the production process, the health of a user is not easy to influence, and the recycling is facilitated.
2. The styrene-butadiene rubber coated sodium alginate, the shellac-loaded microcrystalline cellulose and the flow promoter are matched with polyethylene glycol ethanol solution and citric acid solution on the surface of the PET fiber felt for treatment, so that the coating has a good flowing effect in the process of coating the polyurethane glue, the coating uniformity and smoothness are not easily affected due to overhigh viscosity, after the coating is finished, the styrene-butadiene rubber and the shellac are gradually hot-melted in the hot-pressing process, the hot-melted liquid can not only improve the viscosity of the polyurethane glue, but also the sodium alginate and the microcrystalline cellulose can be further crosslinked with the polyurethane glue, and the water sprayed on the surface of the polyurethane glue is matched, so that the polyurethane glue has a good bonding effect with the PET fiber felt, has good bonding property with base cloth materials such as non-woven fabrics, ensures the adhesion stability of each layer of the internal decorative ceiling, is not easily subjected to the peeling problem of the layer, and prolongs the service life of the internal decorative ceiling.
3. The PET fiber felt and the polyurethane glue are matched, and the strength and flexibility of substances such as styrene-butadiene rubber, shellac and the like are matched by utilizing a crosslinked three-dimensional network structure, so that the strength and flexibility of the interior ceiling are improved, and the service life of the interior ceiling is prolonged.
4. The adhesive has the advantages that the adhesive is low in viscosity, convenient to coat and poor in adhesion effect, if the adhesive is too high in difficulty, good in bonding effect, but the adhesive is difficult to coat and uneven in coating, styrene-butadiene rubber and shellac in polyurethane adhesive are insoluble in water, the viscosity of the polyurethane adhesive is not easily influenced after sodium alginate and microcrystalline cellulose are blocked, the coating effect of the polyurethane adhesive is guaranteed, and the viscosity of the polyurethane adhesive on the surface of a PET fiber felt is increased in the heating and heat curing process, so that the bonding effect is guaranteed.
5. Cetostearyl alcohol and shellac can improve the water resistance, wear resistance and stability of polyurethane glue, and prolong the service life of the interior ceiling.
Detailed Description
The present application will be described in further detail with reference to examples.
Preparation example of PET fiber felt
The following raw materials are all commercially available.
Preparation example 1a pet fiber mat was prepared as follows:
Mixing 10% by mass of low-melting-point polyester fibers with 95% by mass of conventional polyester fibers, wherein the melting point of the low-melting-point polyester fibers is 130 ℃, and the melting point of the conventional polyester fibers is 250 ℃, and carrying out opening, carding, lapping, hot pressing, qualitative, lustre finishing and slicing to obtain the PET fiber felt with the average thickness of 20mm and the gram weight of 300g/m 2.
Preparation example 2a pet fiber mat was prepared using the following method:
Mixing 20% by mass of low-melting-point polyester fibers with 80% by mass of conventional polyester fibers, and carrying out opening, carding, lapping, hot pressing, qualitative, lustring and slicing to obtain the PET fiber felt with the average thickness of 25mm and the gram weight of 350g/m 2.
Preparation example 3 a pet fiber mat was prepared using the following method:
Mixing 20% by mass of low-melting-point polyester fibers with 80% by mass of conventional polyester fibers, wherein the melting point of the low-melting-point polyester fibers is 130 ℃, and the melting point of the conventional polyester fibers is 250 ℃, and carrying out opening, carding, lapping, hot pressing, qualitative polishing and slicing to obtain PET (polyethylene terephthalate) fiber felt blanks;
Uniformly spraying 0.2kg of fucoidan liquid on the surface of 1kg of chitosan microsphere, wherein the average particle diameter of the chitosan microsphere is 5 mu m, the fucoidan liquid is 0.5% of fucoidan aqueous solution by mass fraction, and drying and scattering the chitosan microsphere to obtain the chitosan microsphere;
Adding 0.15kg of cetostearyl alcohol and 0.1kg of chitosan microspheres into 1kg of polyethylene glycol 1000 ethanol solution with mass fraction of 1%, and uniformly mixing and stirring to obtain polyethylene glycol ethanol solution with mass fraction of 75%;
and (3) placing the PET fiber felt blank in a citric acid solution for complete soaking treatment for 20min, washing with water for 1 time, air-drying, placing in a polyethylene glycol ethanol solution for complete soaking treatment for 20min, finally draining off superfluous liquid on the surface, and drying to obtain the PET fiber felt.
Preparation example 4 this preparation example differs from preparation example 3 in that:
Mixing 20% by mass of low-melting-point polyester fibers with 80% by mass of conventional polyester fibers, and carrying out opening, carding, lapping, hot pressing, qualitative, scalding and slicing to obtain PET (polyethylene terephthalate) fiber felt blank with an average thickness of 25mm and a gram weight of 350g/m 2;
Uniformly spraying 0.1kg of fucoidan liquid on the surface of 1kg of chitosan microsphere to obtain chitosan microsphere;
Adding 0.1kg of cetostearyl alcohol and 0.05kg of chitosan microspheres into 1kg of polyethylene glycol 1000 ethanol solution with mass fraction of 1%, and uniformly mixing and stirring to obtain polyethylene glycol ethanol solution;
and (3) placing the PET fiber felt blank in a citric acid solution for complete soaking treatment for 20min, washing with water for 1 time, air-drying, placing in a polyethylene glycol ethanol solution for complete soaking treatment for 20min, finally draining off superfluous liquid on the surface, and drying to obtain the PET fiber felt.
Preparation example of polyurethane glue
Among the following raw materials, polyester polyols 205U, 205UC, 210CP, 220UA were purchased from the company limited by the chemical of churah, su, polyether polyol DL-2000 was purchased from the company limited by the chemical of the large chemical of Shandong, polyether polyol 210 was purchased from the company limited by the new materials of Jurong Ningwu, isocyanates PM200, PM400, PM600, M20S were purchased from the company limited by basf, catalysts T12, T120, a33, DE0A, TE a were purchased from the company limited by the chemical of win-win specialty (Shanghai), and other raw materials were all commercially available.
Preparation example 5 polyurethane glue was prepared by the following method:
80kg of polyester polyol, 10kg of polyether polyol, 0.3kg of catalyst and 60kg of isocyanate, wherein the polyester polyol is 205U, the polyether polyol is DL-2000, the catalyst is T12, and the isocyanate is PM200;
the preparation method comprises the following steps:
Heating polyester polyol and polyether polyol at 60 ℃ and a vacuum degree of 0.06MPa for 2.5 hours under negative pressure, dehydrating, removing micromolecular substances, adding a catalyst and isocyanate, reacting for 3 hours at 90 ℃, and finally removing the micromolecular substances in vacuum for 2 hours to obtain the polyurethane glue.
Preparation example 6 polyurethane glue was prepared by the following method:
70kg of polyester polyol, 10kg of polyether polyol, 0.4kg of catalyst and 70kg of isocyanate, wherein the polyester polyol is 205UC, the polyether polyol is 210, the catalyst is T120, and the isocyanate is PM400;
the preparation method comprises the following steps:
Heating polyester polyol and polyether polyol at 60 ℃ and a vacuum degree of 0.06MPa for 2 hours under negative pressure, dehydrating, removing micromolecular substances, adding a catalyst and isocyanate, reacting for 3.5 hours at 90 ℃, and finally removing the micromolecular substances in vacuum for 3 hours to obtain the polyurethane glue.
Preparation example 7 polyurethane glue was prepared as follows:
Heating styrene-butadiene rubber to 100 ℃ for complete hot melting to obtain styrene-butadiene rubber liquid, then uniformly spraying the styrene-butadiene rubber liquid on the surface of 1kg sodium alginate particles, wherein the average particle size of the sodium alginate particles is 10 mu m, and drying and scattering to obtain styrene-butadiene rubber coated sodium alginate;
uniformly spraying 1kg of polyvinyl alcohol solution on 1kg of shellac surface, wherein the average grain diameter of shellac is 20 mu m, the polyvinyl alcohol solution is polyvinyl alcohol aqueous solution with mass fraction of 1%, then adding 1.5kg of microcrystalline cellulose, wherein the average grain diameter of microcrystalline cellulose is 3 mu m, the adding speed of microcrystalline cellulose is 30g/min, during the adding process, shellac is continuously stirred at the rotating speed of 80r/min, after uniform mixing, drying and scattering are carried out to obtain shellac carrier microcrystalline cellulose, and the finished product is sieved by a 500-mesh sieve;
40kg of polyester polyol, 50kg of polyether polyol, 0.5kg of catalyst, 80kg of isocyanate, 1kg of cross-linking agent, 2kg of flow promoter, 2kg of styrene-butadiene rubber coated sodium alginate and 2kg of shellac carrier microcrystalline cellulose, wherein the polyester polyol is 210CP, the polyether polyol is glycol, the cross-linking agent is ethylenediamine, the flow promoter is polyethylene glycol 600, the isocyanate is PM600, and the catalyst is A33;
the preparation method comprises the following steps:
Heating polyester polyol and polyether polyol at 70 ℃ and with the vacuum degree of 0.1MPa for 3 hours under negative pressure, then adding isocyanate, a catalyst, a cross-linking agent and a flow promoter, reacting for 2 hours at 90 ℃, adding styrene-butadiene rubber coated sodium alginate and shellac carrier microcrystalline cellulose at the temperature of 80 ℃, mixing and stirring for 30 minutes, and finally vacuum-maintaining for 2 hours to obtain the finished polyurethane glue.
Preparation 8 this preparation differs from preparation 7 in that:
heating styrene-butadiene rubber to 100 ℃ for complete hot melting to obtain styrene-butadiene rubber liquid, then uniformly spraying the styrene-butadiene rubber liquid on the surface of 0.5kg sodium alginate particles, and drying and scattering the styrene-butadiene rubber liquid to obtain styrene-butadiene rubber coated sodium alginate;
Uniformly spraying 0.5kg of polyvinyl alcohol solution on the surface of 1kg of shellac, then adding 1kg of microcrystalline cellulose with the adding speed of 30g/min, continuously stirring shellac at the rotating speed of 80r/min in the adding process, uniformly mixing, and drying and scattering to obtain shellac carrier microcrystalline cellulose;
30kg of polyester polyol, 40kg of polyether polyol, 0.2kg of catalyst, 50kg of isocyanate, 0.5kg of cross-linking agent, 1kg of flow promoter, 1kg of styrene-butadiene rubber coated sodium alginate and 1kg of shellac carrier microcrystalline cellulose, wherein the polyester polyol is 220UA, the polyether polyol is glycerol, the isocyanate is M20S, and the catalyst is TEOA;
the preparation method comprises the following steps:
Heating polyester polyol and polyether polyol at 60 ℃ and under the vacuum degree of 0.05MPa for 3 hours, then adding isocyanate, a catalyst, a cross-linking agent and a flow promoter, reacting for 1 hour at 80 ℃, adding styrene-butadiene rubber coated sodium alginate and shellac carrier microcrystalline cellulose at the temperature of 80 ℃, mixing and stirring for 20 minutes, and finally vacuum-stirring for 1 hour to obtain the finished polyurethane glue.
PREPARATION EXAMPLE 9 this PREPARATION is different than PREPARATION EXAMPLE 7 in that:
50kg of polyester polyol, 60kg of polyether polyol, 0.8kg of catalyst, 90kg of isocyanate, 1kg of cross-linking agent, 3kg of flow promoter, 3kg of styrene-butadiene rubber coated sodium alginate and 2kg of shellac carrier microcrystalline cellulose;
the preparation method comprises the following steps:
heating polyester polyol and polyether polyol at 80 ℃ and under the vacuum degree of 0.1MPa for 1h, adding isocyanate, a catalyst, a cross-linking agent and a flow promoter, reacting for 1h at 90 ℃, adding styrene-butadiene rubber coated sodium alginate and shellac carrier microcrystalline cellulose at the temperature of 85 ℃, mixing and stirring for 30min, and finally vacuum-maintaining for 2h to obtain the finished polyurethane glue.
Examples
The adhesive is purchased from ZH-P2240.0 produced by the chemical company of Yuntai Hedychio, and the other raw materials are all commonly and commercially available.
Example 1 an environmentally friendly automotive interior ceiling:
the interior ceiling sequentially comprises base cloth, a glue-coated PET fiber felt, base cloth, an adhesive and a surface decoration layer from bottom to top, wherein the surface decoration layer is a PVC layer;
the preparation method comprises the following steps:
s1, uniformly coating polyurethane glue of preparation example 5 on the upper and lower surfaces of a PET fiber felt through a glue roller, wherein the glue coating amount is 160g/m 2, so as to obtain a glue-coated PET fiber felt;
S2, uniformly spraying water on the surface of one side of the glue-coated PET fiber felt, wherein the water spraying amount is 40g/m 2, attaching a base cloth to the water spraying side surface of the glue-coated PET fiber felt, and attaching a base cloth to a non-woven fabric with the base cloth being 60g/m 2, then uniformly spraying water on the other side surface of the glue-coated PET fiber felt, attaching a base cloth to the glue-coated PET fiber felt, wherein the water spraying amount is 40g/m 2, attaching the base cloth to the non-woven fabric with the base cloth being 45g/m 2, then hot-press molding the non-woven fabric for 80S at the temperature of 120 ℃, and then cooling the non-woven fabric to obtain a semi-finished product;
S3, uniformly spraying an adhesive on the surface of the semi-finished product, paving a surface decorative layer, hot-pressing for 60S at the temperature of 110 ℃, cooling, and performing cutting, edge covering and polishing post-treatment to obtain the finished automobile ceiling.
Example 2 this example differs from example 1 in that:
the preparation method comprises the following steps:
S1, uniformly coating polyurethane glue of preparation example 6 on the upper and lower surfaces of a PET fiber felt through a glue roller, wherein the glue coating amount is 160g/m 2, so as to obtain a glue-coated PET fiber felt, wherein the PET fiber felt is the PET fiber felt prepared in preparation example 2;
S2, uniformly spraying water on the surface of one side of the glue-coated PET fiber felt, wherein the water spraying amount is 40g/m < 2 >, attaching a base cloth to the water spraying side surface of the glue-coated PET fiber felt, and attaching a non-woven fabric with the base cloth being 70g/m 2 to the water spraying side surface of the glue-coated PET fiber felt, uniformly spraying water on the other side surface of the glue-coated PET fiber felt, attaching the base cloth with the water spraying amount being 40g/m 2, attaching the base cloth to the non-woven fabric with the base cloth being 45g/m 2 to the water spraying amount, hot-press molding the non-woven fabric for 120S at the temperature of 100 ℃, and cooling the non-woven fabric to obtain a semi-finished product;
s3, uniformly spraying an adhesive on the surface of the semi-finished product, paving a surface decorative layer, hot-pressing for 100S at 90 ℃, cooling, and performing cutting, edge covering and polishing post-treatment to obtain the finished automobile ceiling.
Example 3 an environmentally friendly automotive interior ceiling:
the interior ceiling sequentially comprises base cloth, a glue-coated PET fiber felt, base cloth, an adhesive and a surface decoration layer from bottom to top, wherein the surface decoration layer is a PVC layer;
the preparation method comprises the following steps:
S1, uniformly coating polyurethane glue of preparation example 7 on the upper and lower surfaces of a PET fiber felt through a glue roller, wherein the glue coating amount is 160g/m 2, so as to obtain a glue-coated PET fiber felt, wherein the PET fiber felt is the PET fiber felt prepared in preparation example 3;
S2, uniformly spraying water on the surface of one side of the glue-coated PET fiber felt, wherein the water spraying amount is 40g/m 2, attaching a base cloth to the water spraying side surface of the glue-coated PET fiber felt, and attaching a base cloth to a non-woven fabric with the base cloth being 60g/m 2, then uniformly spraying water on the other side surface of the glue-coated PET fiber felt, attaching a base cloth to the glue-coated PET fiber felt, wherein the water spraying amount is 40g/m 2, attaching the base cloth to the non-woven fabric with the base cloth being 45g/m 2, then hot-press molding the non-woven fabric for 80S at the temperature of 120 ℃, and then cooling the non-woven fabric to obtain a semi-finished product;
S3, uniformly spraying an adhesive on the surface of the semi-finished product, paving a surface decorative layer, hot-pressing for 60S at the temperature of 110 ℃, cooling, and performing cutting, edge covering and polishing post-treatment to obtain the finished automobile ceiling.
Example 4 this example differs from example 3 in that:
The interior ceiling sequentially comprises base cloth, a glue-coated PET fiber felt, base cloth, an adhesive and a surface decoration layer from bottom to top, wherein the base cloth is a film-coated non-woven fabric;
the preparation method comprises the following steps:
S1, uniformly coating polyurethane glue of preparation example 8 on the upper and lower surfaces of a PET fiber felt through a glue roller, wherein the glue coating amount is 160g/m 2, so as to obtain a glue-coated PET fiber felt, wherein the PET fiber felt is the PET fiber felt prepared in preparation example 4;
S2, uniformly spraying water on the surface of one side of the glue-coated PET fiber felt, wherein the water spraying amount is 40g/m 2, attaching the water spraying side surface of the glue-coated PET fiber felt to the base cloth, enabling the other side surface of the glue-coated PET fiber felt to face upwards, uniformly spraying water on the other side surface, attaching the base cloth, hot-press molding for 40S at the temperature of 140 ℃, and cooling to obtain a semi-finished product;
S3, uniformly spraying an adhesive on the surface of the semi-finished product, paving a surface decorative layer, hot-pressing for 20S at 120 ℃, cooling, and performing cutting, edge covering and polishing post-treatment to obtain the finished automobile ceiling.
Example 5 this example differs from example 3 in that:
the polyurethane glue prepared in preparation example 9 is selected.
Example 6 this example differs from example 3 in that:
in the treatment process of the PET fiber felt, no cetostearyl alcohol and chitosan microspheres are added in the polyethylene glycol ethanol solution.
Example 7 this example differs from example 3 in that:
In the preparation process of polyurethane glue, sodium alginate with the same quality is used for replacing styrene-butadiene rubber coated sodium alginate, and microcrystalline cellulose with the same quality is used for replacing shellac carrier microcrystalline cellulose.
Example 8 this example differs from example 3 in that:
in the preparation process of shellac carrier microcrystalline cellulose of polyurethane glue, a polyvinyl alcohol solution is not added.
Example 9 this example differs from example 3 in that:
in the preparation process of the PET fiber felt, citric acid solution treatment is not carried out.
Example 10 this example differs from example 3 in that:
in the preparation process of the PET fiber felt, polyethylene glycol ethanol solution is not treated.
Performance test
1. Adhesion effect detection
The method of examples 1-10 was used to prepare an interior ceiling, and the peel force between the base cloth and the PET fiber felt on the interior ceiling was tested by an electronic universal tester with reference to GB/T7122-1996, and the data was recorded.
2. Flexural Strength detection
The method of examples 1-10 was used to prepare an interior ceiling, and the flexural strength of the interior ceiling was measured by an electronic universal tester with reference to SMTC 5 330 007-2019 and the data was recorded.
3. Viscosity detection
An interior ceiling was prepared by the methods of examples 1 to 5 and 7, respectively, and the viscosity of the polyurethane glue was measured by a viscometer with reference to GB/T2794-2013, and data were recorded.
TABLE 1 Performance test Table (Table "/" indicates that the corresponding example did not detect the item, so there is no data)
As can be seen by combining the embodiments 1-2 and the table 1, the interior ceiling prepared by the method has higher stripping force and bending strength, can prolong the service life of the interior ceiling, has moderate viscosity, and can ensure the uniformity and smoothness of gluing.
It can be seen from the combination of the embodiment 1 and the embodiments 3-5 and the table 1 that the treated PET fiber felt is matched with the polyurethane glue added with the styrene-butadiene rubber coated sodium alginate and the shellac material-carrying microcrystalline cellulose, so that the glue has better coating smoothness and uniformity, and in the curing process after coating, the bonding effect of the polyurethane glue and the base cloth can be improved, and the bonding fastness is improved, so that the stripping force and the bending strength are improved, and the service life of the interior ceiling is prolonged.
As can be seen from the combination of the example 3 and the examples 6-10 and the Table 1, in the treatment process of the PET fiber felt in the example 6, no cetostearyl alcohol and chitosan microspheres are added in the polyethylene glycol ethanol solution, compared with the example 3, the peeling force of the example 6 is lower than that of the example 3, and the bending strength is lower than that of the example 3, the cetostearyl alcohol and chitosan microspheres can improve the bonding effect of polyurethane glue, non-woven fabrics and the PET fiber felt, so that the bonding effect of the polyurethane glue is improved, and the service life of an interior ceiling is prolonged.
In the preparation process of the polyurethane glue, the styrene-butadiene rubber coated sodium alginate is replaced by sodium alginate with the same quality, the shellac carrier microcrystalline cellulose is replaced by microcrystalline cellulose with the same quality, compared with the example 3, the peeling force of the example 7 is lower than that of the example 3, the bending strength is lower than that of the example 3, the viscosity is higher than that of the example 3, the sodium alginate and the microcrystalline cellulose are not coated, the viscosity of the polyurethane glue can be improved, the coating effect of the polyurethane glue is easily affected, and the styrene-butadiene rubber and the shellac can improve the crosslinking and bonding effects of the polyurethane glue, the PET fiber felt and the non-woven fabric, so that the adhesion fastness among all layers of an interior ceiling is further improved, and the service life of the interior ceiling is prolonged.
In the preparation process of shellac carrier microcrystalline cellulose of polyurethane glue of example 8, a polyvinyl alcohol solution is not added, compared with example 3, the peeling force of example 8 is lower than that of example 3, the bending strength is lower than that of example 3, and the fact that hydroxyl in the polyvinyl alcohol solution can be crosslinked with carboxyl and hydroxyl on the surface of a PET fiber felt is indicated, and in the curing stage, the bonding effect of the polyurethane glue, the PET fiber felt and non-woven fabric is further improved, so that the service life of an interior ceiling is prolonged.
In the preparation process of the PET fiber felt in embodiment 9, the peel force and the bending strength of the PET fiber felt in embodiment 9 are lower than those of the PET fiber felt in embodiment 3 compared with those of the PET fiber felt in embodiment 3, which shows that the citric acid solution can remove impurities on the surface of the PET fiber felt, improve the contact area of fiber yarns and polyurethane glue, and further improve the carboxyl content on the surface of the fiber yarns, further improve the bonding effect of the PET fiber felt and the polyurethane glue, further improve the adhesion stability of each layer and ensure that the interior ceiling has longer service life.
In the preparation process of the PET fiber felt in embodiment 10, polyethylene glycol ethanol solution is not treated, compared with embodiment 3, the peeling force in embodiment 10 is lower than that in embodiment 3, and the bending strength is lower than that in embodiment 3, which means that after the PET fiber felt is treated by the polyethylene glycol ethanol solution, the hydroxyl content on the surface of fiber yarns can be further increased, and the adhesion between the PET fiber felt and polyurethane glue is improved, so that the peeling force and the bending strength are improved, the better adhesion effect is achieved between layers of an interior ceiling, and the service life of the interior ceiling is prolonged.
The present embodiment is only for explanation of the present application and is not to be construed as limiting the present application, and modifications to the present embodiment, which may not creatively contribute to the present application as required by those skilled in the art after reading the present specification, are all protected by patent laws within the scope of claims of the present application.

Claims (10)

1. The environment-friendly automotive interior ceiling is characterized by comprising base cloth, a glue-coated PET fiber felt, base cloth, an adhesive and a surface decoration layer from bottom to top, wherein the base cloth is made of any one of non-woven fabrics, laminated non-woven fabrics or laminated non-woven fabrics, and the glue-coated PET fiber felt is prepared by coating polyurethane glue on two sides of the PET fiber felt.
2. The environment-friendly automotive interior ceiling of claim 1, wherein the PET fiber felt is prepared by mixing 10-20% by mass of low-melting-point polyester fibers and 80-90% by mass of conventional polyester fibers, opening, carding, lapping, hot pressing, qualitative, polishing and slicing to obtain PET fiber felt blanks, treating the PET fiber felt blanks with a citric acid solution, leaching, air-drying, treating with a polyethylene glycol ethanol solution, washing with water and drying.
3. The environment-friendly automotive interior ceiling according to claim 2, wherein the polyethylene glycol ethanol solution is prepared from polyethylene glycol 1000 ethanol solution, cetostearyl alcohol and chitosan microspheres in a mass ratio of 1:0.1-0.15:0.05-0.1.
4. The environment-friendly automotive interior ceiling of claim 3, wherein the chitosan microspheres are prepared from chitosan microsphere-loaded fucoidan liquid in a mass ratio of 1:0.1-0.2.
5. The environment-friendly automotive interior ceiling according to claim 1, wherein the polyurethane glue comprises the following raw materials in parts by weight:
30-50 parts of polyester polyol, 40-60 parts of polyether polyol, 0.2-0.8 part of catalyst, 50-90 parts of isocyanate, 0.5-1 part of cross-linking agent, 1-3 parts of flow promoter, 1-3 parts of styrene-butadiene rubber coated sodium alginate and 1-2 parts of shellac carrier microcrystalline cellulose.
6. The environment-friendly automotive interior ceiling of claim 5, wherein the styrene-butadiene rubber coated sodium alginate is prepared from styrene-butadiene rubber liquid and sodium alginate particles in a mass ratio of 1:0.5-1.
7. The environment-friendly automotive interior ceiling according to claim 5, wherein the shellac-loaded microcrystalline cellulose is prepared from shellac-loaded polyvinyl alcohol solution and microcrystalline cellulose in a mass ratio of 1:0.5-1:1-1.5.
8. The environment-friendly automotive interior ceiling of claim 5, wherein the polyester polyol is one or more of 205U, 205UC, 210CP, 220UA, the polyether polyol is one or more of DL-2000, 210, diethylene glycol, ethylene glycol, glycerol, 330N, the isocyanate is one or more of PM200, PM400, PM600, M20S, and the catalyst is one or more of T12, T120, a33, DE0A, TE a.
9. The method for preparing the environment-friendly automotive interior ceiling according to any one of claims 1 to 8, which is characterized by comprising the following steps:
s1, uniformly coating polyurethane glue on the upper surface and the lower surface of a PET fiber felt to obtain a glue-coated PET fiber felt;
S2, uniformly spraying water on the upper surface and the lower surface of the glue-coated PET fiber felt, attaching a base cloth, hot-press molding for 40-120S at the temperature of 100-140 ℃, and cooling to obtain a semi-finished product;
S3, uniformly spraying an adhesive on the upper surface of the semi-finished product, paving a surface decorative layer, hot-pressing for 20-100S at the temperature of 90-120 ℃, cooling, cutting, edge covering and post-processing to obtain the finished automobile ceiling.
10. The method for preparing the environment-friendly automotive interior ceiling according to claim 9, wherein the polyurethane glue is prepared by the following method:
heating polyester polyol and polyether polyol at 60-80 ℃ and vacuum degree of 0.05-0.1MPa for 1-3h under negative pressure, adding isocyanate, catalyst, cross-linking agent and flow promoter, reacting for 1-4h at 80-90 ℃, adding styrene-butadiene rubber coated sodium alginate, shellac-loaded microcrystalline cellulose and water at 80-85 ℃, mixing and stirring for 20-30min, and finally vacuum-pumping for 1-2h to obtain the final product polyurethane glue.
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