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WO2014169448A1 - Papier de pierre respectant l'environnement et procédé pour sa préparation - Google Patents

Papier de pierre respectant l'environnement et procédé pour sa préparation Download PDF

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Publication number
WO2014169448A1
WO2014169448A1 PCT/CN2013/074311 CN2013074311W WO2014169448A1 WO 2014169448 A1 WO2014169448 A1 WO 2014169448A1 CN 2013074311 W CN2013074311 W CN 2013074311W WO 2014169448 A1 WO2014169448 A1 WO 2014169448A1
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WO
WIPO (PCT)
Prior art keywords
stone paper
environmentally friendly
surface layer
base layer
friendly stone
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.)
Ceased
Application number
PCT/CN2013/074311
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English (en)
Chinese (zh)
Inventor
王德成
姚丹
刘俊豪
夏开邦
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.)
HONG KONG GREEN ANGEL TECHNOLOGY Ltd
Original Assignee
HONG KONG GREEN ANGEL TECHNOLOGY Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by HONG KONG GREEN ANGEL TECHNOLOGY Ltd filed Critical HONG KONG GREEN ANGEL TECHNOLOGY Ltd
Priority to PCT/CN2013/074311 priority Critical patent/WO2014169448A1/fr
Publication of WO2014169448A1 publication Critical patent/WO2014169448A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
    • D21H17/20—Macromolecular organic compounds
    • 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
    • B32B27/32—Layered products comprising a layer of synthetic resin comprising polyolefins
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H11/00—Pulp or paper, comprising cellulose or lignocellulose fibres of natural origin only
    • D21H11/12—Pulp from non-woody plants or crops, e.g. cotton, flax, straw, bagasse
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H15/00—Pulp or paper, comprising fibres or web-forming material characterised by features other than their chemical constitution
    • D21H15/02—Pulp or paper, comprising fibres or web-forming material characterised by features other than their chemical constitution characterised by configuration
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
    • D21H17/20—Macromolecular organic compounds
    • D21H17/33—Synthetic macromolecular compounds
    • D21H17/34—Synthetic macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • D21H17/35—Polyalkenes, e.g. polystyrene
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
    • D21H17/63—Inorganic compounds
    • D21H17/67—Water-insoluble compounds, e.g. fillers, pigments
    • D21H17/675—Oxides, hydroxides or carbonates
    • 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
    • B32B2262/06—Vegetal fibres
    • B32B2262/062—Cellulose fibres, e.g. cotton
    • 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
    • B32B2307/30—Properties of the layers or laminate having particular thermal properties
    • B32B2307/306—Resistant to heat
    • B32B2307/3065—Flame resistant or retardant, fire resistant or retardant
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H21/00—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties
    • D21H21/14—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties characterised by function or properties in or on the paper
    • D21H21/34—Ignifugeants

Definitions

  • the invention relates to the field of papermaking, in particular to environmentally friendly stone paper and a preparation method thereof.
  • Paper is one of the four major inventions in China.
  • the main raw material of traditional paper is wood. Its production is largely divided into two basic processes: pulping and papermaking. Pulping is the disintegration of raw materials into natural pulp or bleached pulp. In papermaking, pulp fibers suspended in water are processed into various papers to meet the requirements. At present, with the introduction of national forest protection policies, papermaking materials are mainly maintained by imported wood pulp. At the same time, due to the large amount of wastewater generated in the traditional paper production process, the environment is seriously polluted, the treatment is extremely difficult, and the traditional paper is not resistant to moisture, corrosion, dimensional stability and various physical and mechanical energy, which cannot meet the special requirements of many paper fields. Requirements, therefore, the development of paper production requires innovation.
  • environmentally friendly synthetic papers were produced using plastics, calcium carbonate and various additives as raw materials by blown film casting and casting.
  • the environmentally-friendly synthetic paper is characterized in that its physical and mechanical properties are superior to those of conventional paper, and it has the characteristics of moisture resistance, water resistance, dimensional stability, etc., thus meeting various requirements in different fields, and replacing traditional paper in some fields.
  • the new environmentally friendly synthetic paper, stone paper, has appeared in this revolution.
  • the existing stone paper is characterized in that it is mainly composed of a resin and calcium carbonate.
  • it is necessary to increase the proportion of calcium carbonate in the stone paper, thereby reducing the amount of the resin, thereby reducing the cost.
  • the problem that comes with it is that as the proportion of calcium carbonate increases, its functional function gradually decreases, and the physical and mechanical energy of the prepared stone paper decreases, resulting in a decrease in the quality of the stone paper.
  • the proportion of calcium carbonate is increased to reduce the proportion of the resin, the specific gravity of the prepared stone paper is increased, which in turn causes a reduction in the amount of paper actually produced, thereby compressing the actual space for cost reduction.
  • an environmentally friendly stone paper comprising a resin and a short fiber, wherein the short fiber is a fiber product having a fiber length of 10 to 15 mm is provided.
  • the environmentally friendly stone paper may or may not contain calcium carbonate depending on the demand for rigidity or the like in actual use of the paper.
  • the short fibers may be cotton staple fibers
  • the resin may be polyethylene or polypropylene.
  • the short fibers are preferably short cotton linters, and the resin is preferably polyethylene.
  • the weight percentage of the short fibers is preferably 30 to 50%, and preferably the weight percentage of the resin is 47 to 67%.
  • the above environmentally friendly stone paper further includes an auxiliary agent having a weight percentage of 2.2 to 4.5%, and the auxiliary agent includes a composite coupling agent, a flame retardant, a compatibilizer or a slip agent.
  • the composite coupling agent accounts for 0.2-0.5%
  • the flame retardant accounts for 0.5-1%
  • the compatibilizer accounts for 0.5-1%
  • the slip agent accounts for 0.5-2%.
  • a three-layer co-extruded environmentally friendly stone paper comprising a skin layer and a base layer, the components of the base layer comprising short fibers, a resin and an auxiliary agent; and the surface layer component comprising titanium dioxide, resin and auxiliary Agent.
  • composition of the environmentally friendly stone paper base layer preferably comprises 30-50% of short fibers, 47-67% of resin, and 2.2% to 4.5% of auxiliary agent, based on the mass percentage of the base layer.
  • composition of the eco-friendly stone paper surface layer preferably comprises 32-64% titanium dioxide, 33-65% resin and 2.2%-4.5% auxiliary agent in terms of surface layer percentage.
  • the short fibers may be cotton staple fibers
  • the resin may be polyethylene or polypropylene.
  • the short fibers are preferably short cotton linters
  • the resin is preferably polyethylene.
  • high density polyethylene accounts for 55-65%
  • low density polyethylene accounts for 25-35%
  • linear low density polyethylene accounts for 5-15%.
  • auxiliary agents include a composite coupling agent, a flame retardant, a compatibilizer or a slip agent. Further preferably, the composite coupling agent accounts for 0.2-0.5%, the flame retardant accounts for 0.5-1%, the compatibilizer accounts for 0.5-1%, and the slip agent accounts for 0.5-2%, which are respectively calculated as the percentage of the base layer or the surface layer mass. .
  • the components of the above base layer may further include calcium carbonate.
  • the three-layer co-extruded green stone paper structure is a surface layer-base layer-surface layer, and the base layer is sandwiched between two surface layers, and the paper thickness thereof may be 0.08-0.15 mm, and the thickness of the base layer and the surface layer may be adjusted according to actual needs, preferably the base layer.
  • the thickness accounts for 70%-90% of the total thickness of the environmentally friendly stone paper, and the thickness of each surface layer accounts for 5%-15% of the total thickness of the environmentally friendly stone paper.
  • a method for preparing a three-layer co-extruded environmentally friendly stone paper comprising:
  • the components are dried to a water content of less than 2%, and the components and ratios can be referred to the above description;
  • Base layer Adding an auxiliary agent to the short fiber, adding the resin after mixing;
  • the components of the mixed base layer and the components of the surface layer are respectively granulated by vacuum kneading to obtain surface layer particles and base layer particles;
  • the three layers of the surface layer and the base layer are co-extruded to prepare an environmentally friendly stone paper having a surface layer-base layer-surface layer three-layer structure.
  • step B when the auxiliary agent is added, the order of adding the auxiliary agent is to sequentially add a composite coupling agent, a flame retardant, a compatibilizer, a slip agent, and after each component is added, the mixture is thoroughly mixed and then added to another kind.
  • a three-layer co-extrusion five-roll calender which comprises an extruder part and a calender part, and the extrusion temperature of each section in the extruder is set to 90-110 ° C, 220-240 ° C, 100-120 °C, calender temperature setting is less than 150 °C.
  • the beneficial effects of the present invention are: 1.
  • the proportion of environmentally friendly stone paper can be reduced, physical and mechanical properties such as rigidity, stiffness, flexibility, etc. are improved, tear strength is greatly enhanced, and dimensional stability of environmentally friendly stone paper is also more stable. good.
  • the base layer plays a supporting role and plays a decisive role in the improvement of various physical and mechanical properties of environmentally friendly stone paper;
  • the surface layer is smooth, has a certain hardness, and has high wetting tension, good coloring performance, and is favorable for printing, the environmentally friendly stone paper of the invention It is especially suitable for applications requiring high physical and mechanical properties and small dimensional deformation, such as maps, charts, petroleum, geology, earthquake disaster maps, and national land mapping.
  • Figure 1 is a structural view of a novel environmentally-friendly stone paper of the present invention, wherein 1 represents a base layer and 2 represents a surface layer;
  • Fig. 3 is a schematic view showing the calendering process in the preparation step of a novel environmentally-friendly stone paper of the present invention, wherein 3 denotes an extruder, 4 denotes a die, 5 denotes a calender, and 6 denotes a winder.
  • the invention replaces the main component of the conventional stone paper of the prior art with short fiber as the main component, and the prepared paper has the basic performance of the traditional stone paper compared with the traditional stone paper.
  • the characteristics are also optimized to various degrees in various performances. Therefore, the present invention discloses a novel environmentally-friendly stone paper.
  • the short fibers in the present invention are fiber products having a fiber length of 10 to 15 mm, and cotton short fibers, short glass fibers, and the like can be used, and short cotton linters are preferably used.
  • the short cotton linter used in the present invention refers to a short fiber remaining on the cotton seed after the cotton seed is rolled, and is a short cotton fiber which cannot be woven.
  • the invention further provides a three-layer co-extruded environmental protection stone paper comprising a surface layer and a base layer, the structure of which is shown in FIG. 1 : a three-layer structure of a surface layer-base layer-surface layer.
  • the components of the base layer mainly include short fibers, resins and auxiliary agents.
  • the composition of the base layer comprises 30-50% of short fibers, 47-67% of resin, and 2.2% to 4.5% of auxiliary agent in terms of the mass percentage of the base layer.
  • Table The components of the layer include titanium dioxide, a resin and an auxiliary agent, wherein the titanium dioxide has a light blocking effect and a whitening effect.
  • the surface layer component of the present invention comprises 32-64% titanium dioxide, 33-65% resin, and 2.2%-4.5% auxiliary agent in terms of surface layer percentage.
  • the three-layer co-extruded environmentally friendly stone paper of the present invention has different base layers and surface layers, and therefore has different effects.
  • the base layer has a supporting effect, which plays a decisive role in the physical and mechanical properties of environmentally friendly stone paper; the surface layer is mainly used for printing.
  • the base layer components are preferably short cotton linters, and can also be at the base layer according to actual needs. Further, components such as calcium carbonate are added.
  • the thickness of the environmentally-friendly stone paper is 0.08-0.15 mm, and the thickness ratio of the surface layer and the base layer can be adjusted according to the printing conditions, the printing requirements, and the physical and mechanical properties of the sheet.
  • the thickness of the base layer is preferably environmentally friendly. 70%-90% of the thickness of the stone paper, the thickness of each surface layer accounts for 5%-15% of the thickness of the environmentally-friendly stone paper, the thickness of the upper surface layer can be the same, or can be adjusted to different thicknesses as needed.
  • the base layer thickness of the paper is 90% and the upper and lower layers each account for 5%.
  • the resin in the surface layer and the base layer component of the present invention may be polyethylene or polypropylene or the like, and those skilled in the art may select a suitable resin type according to the actual requirements of paper manufacture.
  • Polyethylene is preferred in the present invention, wherein the high density polyethylene accounts for 55-65%, the low density polyethylene accounts for 25-35%, and the linear low density polyethylene accounts for 5-15%, in accordance with the present invention. Further preferably, in the embodiment, in the polyethylene, the high density polyethylene accounts for 60%, the low density polyethylene accounts for 30%, and the linear low density polyethylene accounts for 10%.
  • the auxiliaries in the surface layer and the base layer component of the present invention mainly include a composite coupling agent, a flame retardant, a compatibilizer (also referred to as a compatibilizer), and a slip agent (also referred to as a dispersant).
  • the composite coupling agent used in the base layer is the name thereof, and does not mean that it is composed of a mixture of a plurality of coupling agents, and the function thereof is to achieve a good linkage between the components such as short cotton linters and the resin, and those skilled in the art can
  • the resin, short cotton linter and other components used, and a suitable composite coupling agent, such as OL-AT series aluminum-titanium composite coupling agent, may be selected.
  • the composite coupling agent may also be shared with the silane coupling agent.
  • the silane coupling agent may also be shared with the silane coupling agent.
  • the extrusion pressure is delayed, and the components used for preparing the base layer and the surface layer are in a molten state in a fluid form, and should have internal lubrication and external lubrication properties, that is, there should be good lubrication between the inside of the melt, between the melt and the metal. Guaranteed, therefore, it is necessary to choose a good slip agent as an auxiliary agent to ensure good lubrication.
  • RH type lubricant can be used as a slip agent, or WP type polypropylene wax or WE type polyethylene wax can be selected.
  • the function of the flame retardant is to make the paper have the function of fire prevention.
  • the flame retardant PP (this name) can be selected, which is effective and environmentally friendly, and the FZY series composite flame retardant and smoke suppressant can also be used as the flame retardant.
  • the auxiliary agent may be selected according to the selected resin.
  • the slip agent may be selected from polyethylene wax or polypropylene wax according to the resin selected (for example, the resin is polyethylene, and the smoothing agent is polyethylene wax; If the resin is polypropylene, the smoothing agent is made of polypropylene wax.
  • the compatibilizer can be selected from POE8100 type compatibilizer or POE8210 type compatibilizer.
  • the composite coupling agent is preferably 0.2-0.5%, which is resistant.
  • the flammable agent accounts for 0.5-1%
  • the compatibilizer accounts for 0.5-1%
  • the slip agent accounts for 0.5-2%, which are calculated as the percentage of the base layer or the surface layer respectively.
  • a method for preparing a three-layer co-extruded environmentally friendly stone paper according to an embodiment of the present invention, as shown in FIG. 2, includes: Step A, drying all components to a water content of less than 2% to ensure smooth process flow get on.
  • Step B the components of the base layer and the components of the surface layer are respectively added to a high-speed mixer and mixed and stirred at 100-110 ° C, the mixing sequence is, the base layer: firstly stir the short fibers for 3-5 minutes, then add the auxiliary stirring. After mixing for 3-5 minutes, add the resin and stir for 3-5 minutes.
  • Surface layer Stir the titanium dioxide for 3-5 minutes, then add the auxiliary agent for 3-5 minutes. Mix the mixture and add the resin for 3-5 minutes.
  • step C the components of the mixed base layer and the components of the surface layer are respectively subjected to vacuum kneading and then granulated to obtain surface layer particles and base layer particles, respectively.
  • step D the surface layer particles and the base layer particles are sent to an extruder, as shown in FIG. 3, heated in an extruder, flowed out through the die, and then calendered to a desired thickness by a calender, and appropriately processed and then passed through a winder.
  • the paper was prepared to obtain an environmentally friendly stone paper having a surface layer-base layer-surface three-layer structure.
  • the short lint is added to the coupling agent and other auxiliary agents at about 110 ° C in a high-speed stirrer, stirred at a low speed for about 3-5 minutes, and then added with a resin, low-speed stirring 3 - 5 minutes, that is, a good link between the short cotton linters and the resin, and the two are integrated to ensure the consistency of the performance of the environmentally friendly stone paper.
  • the order of adding the auxiliary agent of the base layer is preferably firstly added with a composite coupling agent, then adding a flame retardant, a compatibilizer, a slip agent, and sufficient after each auxiliary agent is added. Mix, such as mixing for one minute before adding another.
  • the resin of the base layer, the short lint system and the surface layer of the titanium dioxide and the resin system are required to ensure the rheology of the fluid. Good performance.
  • the evaluation criteria for good melt flow properties of the base layer and the surface layer are that the melt flow rate should be > 1 to maintain the consistency of the flow properties.
  • the melt flow rate is determined by the choice of resin, formulation, process, and those skilled in the art will be able to control the melt flow rate under appropriate conditions.
  • the temperature of each section during extrusion is set to be about 90-110 °C ->220-240 °C ->100-120 °C, preferably 100 °C ->240 °C ->110 °C
  • the temperature setting of the calender should be below the Vicat softening point of the component, that is, below 150 °C.
  • the polyethylene used was a commercially available Saudi HTA-001HD polyethylene, and the titanium dioxide used was R960 titanium dioxide of DuPont, USA.
  • the composite coupling agent used was 27 of Shenzhen Superior Changhao Technology Co., Ltd. # ⁇
  • the slip agent used is 8 ⁇ -108# slip agent of Shanghai Songya Chemical Co., Ltd.
  • the flame retardant used is the inorganic flame retardant of Guangzhou Jiazhuo Trading Co., Ltd.
  • the compatibilizer used is the WP-11 increase of Shanghai Jinshan Star Plastic Co., Ltd.
  • the short cotton linters used are the short cotton linters of Henan Kaifeng Cotton Production Co., Ltd.
  • the calcium carbonate used is Nanjing Omega calcium carbonate.
  • the surface layer components (the weight percentage of each component is based on the surface layer mass): polyethylene 57.5%, titanium oxide 40%, composite coupling agent 0.5%, flame retardant 0.5%, compatibilizer 0.5%, slip agent 1%.
  • Base component weight percent of each component based on base mass: 55% polyethylene, 42.5% short cotton, 0.5% composite coupling, 0.5% flame retardant, 0.5% compatibilizer, 1% slip agent .
  • the specific preparation process is as follows:
  • the surface particles and the base particles are sent to the extruder, and the temperature of each section during extrusion is set to about 100 ° C -> 240 ° C -> 110 ° C, the particles are melted into a molten state, through the die After flowing out, it is pressed to a desired thickness by a calender roll, and the temperature of the calender is set to 150 ° C or less, and then corona treatment, static elimination, on-line thickness non-contact measurement, and the like are completed, and the product is wound up to obtain a product. 1.
  • Example 2 Example 2
  • the surface layer components (the weight percentage of each component is based on the surface layer mass): polyethylene 57.5%, titanium oxide 40%, composite coupling agent 0.5%, flame retardant 0.5%, compatibilizer 0.5%, slip agent 1%.
  • Base layer components (weight percent of each component based on the mass of the base layer): polyethylene 67%, short cotton linter 30.8%, composite coupling agent 0.2%, flame retardant 0.5%, compatibilizer 0.5%, slip agent 1% .
  • Example 3 Prepare environmentally friendly stone paper according to the following formula.
  • the surface layer components (the weight percentage of each component is based on the surface layer mass): polyethylene 57.5%, titanium oxide 40%, composite coupling agent 0.5%, flame retardant 0.5%, compatibilizer 0.5%, slip agent 1%.
  • Base layer components (weight percent of each component based on the mass of the base layer): 45.5% polyethylene, 50% short cotton, 0.5% composite coupling, 1% flame retardant, 1% compatibilizer, 2% slip agent .
  • the surface layer components (the weight percentage of each component is based on the surface layer mass): polyethylene 57.5%, titanium oxide 40%, composite coupling agent 0.5%, flame retardant 0.5%, compatibilizer 0.5%, slip agent 1%.
  • Base layer components (weight percent of each component based on the mass of the base layer): 47% polyethylene, 48.5% short cotton, 0.5% composite coupling, 1% flame retardant, 1% compatibilizer, 2% slip agent .
  • the surface layer components (the weight percentage of each component is based on the surface layer mass): polyethylene 57.5%, titanium oxide 40%, composite coupling agent 0.5%, flame retardant 0.5%, compatibilizer 0.5%, slip agent 1%.
  • Base layer components weight percent of each component in terms of base layer mass: 66.7% polyethylene, 30% short cotton, 0.3% composite coupling, 0.75% flame retardant, 0.75% compatibilizer, 1.5% slip agent .
  • the surface layer components (the weight percentage of each component is based on the surface layer mass): polyethylene 63.5%, titanium dioxide 32%, composite coupling agent 0.5%, flame retardant 1%, compatibilizer 1%, slip agent 2%.
  • Base component weight percent of each component based on base mass: 55% polyethylene, 42.5% short cotton, 0.5% composite coupling, 0.5% flame retardant, 0.5% compatibilizer, 1% slip agent .
  • the surface layer components (the weight percentage of each component is based on the surface layer): polyethylene 33.8%, titanium dioxide 64%, composite coupling agent 0.2%, flame retardant 0.5%, compatibilizer 0.5%, slip agent 1%.
  • Base component weight percent of each component based on base mass: 55% polyethylene, 42.5% short cotton, 0.5% composite coupling, 0.5% flame retardant, 0.5% compatibilizer, 1% slip agent .
  • the preparation procedure was the same as in Example 1 to obtain the product 7.
  • composition (the weight percentage of each component is based on the surface quality): polyethylene 65%, titanium dioxide 32.7%, composite coupling agent 0.3%, flame retardant 0.5%, compatibilizer 0.5%, slip agent 1%.
  • Base component weight percent of each component based on base mass: 55% polyethylene, 42.5% short cotton, 0.5% composite coupling, 0.5% flame retardant, 0.5% compatibilizer, 1% slip agent .
  • composition (the weight percentage of each component is based on the surface quality): polyethylene 33%, titanium dioxide 63.7%, composite coupling agent 0.3%, flame retardant 0.75%, compatibilizer 0.75%, slip agent 1.5%.
  • Base component weight percent of each component based on base mass: 55% polyethylene, 42.5% short cotton, 0.5% composite coupling, 0.5% flame retardant, 0.5% compatibilizer, 1% slip agent .
  • the surface layer components (the weight percentage of each component is based on the surface layer mass): polyethylene 57.5%, titanium oxide 40%, composite coupling agent 0.5%, flame retardant 0.5%, compatibilizer 0.5%, slip agent 1%.
  • Base layer components 50% polyethylene, 35% short cotton, 12.5% calcium carbonate, 0.5% composite coupling agent, 0.5% flame retardant, 0.5% compatibilizer, Slip agent 1%.
  • the above-mentioned products 1-10 have a paper thickness of 0.12 ⁇ 0.03 mm, a base layer thickness of 90% of the paper thickness, and an upper surface layer thickness of 5% of the paper thickness. Comparative example
  • control is PP single-layer stone paper, the formula is (by mass percentage): PP (polypropylene homopolymer) 47.2%, calcium carbonate 50%, coupling agent 0.8%, flame retardant 0.5%, compatibilization 0.5% agent, 1% slip agent.
  • the environmentally friendly stone paper prepared according to the present invention has a lower specific gravity than the conventional stone paper in the comparison of the above indexes, and has various physical and mechanical properties, such as high elongation at break, high tensile strength at yield, tensile strength at break. high. Meanwhile, the stone paper according to the present invention has a lower percentage of the dimensional change rate in the stability test than the PP stone paper, that is, the dimensional stability is good. On the cost side, since the environmentally-friendly stone paper according to the present invention has a low specific gravity, the actual number of sheets produced is larger than that of PP stone paper, thereby reducing the cost per unit paper.
  • the above description is only the preferred embodiment of the present invention, and is not intended to limit the present invention. For those skilled in the art, the above specific embodiments may be modified according to the idea of the present invention.

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  • Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
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  • Compositions Of Macromolecular Compounds (AREA)

Abstract

L'invention concerne un papier de pierre respectant l'environnement et un procédé pour sa préparation. Les composants du papier de pierre respectant l'environnement comprennent une résine et une fibre courte. La fibre courte est une fibre produite avec une longueur de fibre de 10 mm à 15 mm. Etant donné que la fibre courte remplace le carbonate de calcium, un composant principal des papiers de pierre conventionnels, la proportion de papier de pierre est réduite, et les performances mécaniques physiques sont améliorées, ce qui permet des applications multiples.
PCT/CN2013/074311 2013-04-17 2013-04-17 Papier de pierre respectant l'environnement et procédé pour sa préparation Ceased WO2014169448A1 (fr)

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CN108301254A (zh) * 2018-04-14 2018-07-20 福建省大投科技有限公司 一种石头纤维纸及加工方法
WO2018193329A1 (fr) 2017-04-20 2018-10-25 Industrias Sustentables Nava, S.A.P.I. De C.V. Papier minéral écologique en plastique recyclé et procédé de production associé
BE1025436B1 (nl) * 2017-07-25 2019-02-27 Sb Diest Nv Verbeterde drielagige papierachtige plastic film en werkwijze voor het vervaardigen ervan

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WO2018193329A1 (fr) 2017-04-20 2018-10-25 Industrias Sustentables Nava, S.A.P.I. De C.V. Papier minéral écologique en plastique recyclé et procédé de production associé
BE1025436B1 (nl) * 2017-07-25 2019-02-27 Sb Diest Nv Verbeterde drielagige papierachtige plastic film en werkwijze voor het vervaardigen ervan
CN108301254A (zh) * 2018-04-14 2018-07-20 福建省大投科技有限公司 一种石头纤维纸及加工方法

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