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WO2012104041A1 - Matière plastique renforcée par des fibres - Google Patents

Matière plastique renforcée par des fibres Download PDF

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Publication number
WO2012104041A1
WO2012104041A1 PCT/EP2012/000354 EP2012000354W WO2012104041A1 WO 2012104041 A1 WO2012104041 A1 WO 2012104041A1 EP 2012000354 W EP2012000354 W EP 2012000354W WO 2012104041 A1 WO2012104041 A1 WO 2012104041A1
Authority
WO
WIPO (PCT)
Prior art keywords
natural fibers
fiber
plastic material
biomass
reinforced plastic
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/EP2012/000354
Other languages
German (de)
English (en)
Inventor
Michael Ludwig GASS
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.)
BIOWERT AG
Original Assignee
BIOWERT AG
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 BIOWERT AG filed Critical BIOWERT AG
Priority to EP12707697.4A priority Critical patent/EP2670792A1/fr
Publication of WO2012104041A1 publication Critical patent/WO2012104041A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
    • C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
    • C08J5/04—Reinforcing macromolecular compounds with loose or coherent fibrous material
    • C08J5/045—Reinforcing macromolecular compounds with loose or coherent fibrous material with vegetable or animal fibrous material
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
    • C08J5/04—Reinforcing macromolecular compounds with loose or coherent fibrous material
    • C08J5/06—Reinforcing macromolecular compounds with loose or coherent fibrous material using pretreated fibrous materials
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L97/00—Compositions of lignin-containing materials
    • C08L97/02—Lignocellulosic material, e.g. wood, straw or bagasse
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01B—MECHANICAL TREATMENT OF NATURAL FIBROUS OR FILAMENTARY MATERIAL TO OBTAIN FIBRES OF FILAMENTS, e.g. FOR SPINNING
    • D01B1/00—Mechanical separation of fibres from plant material, e.g. seeds, leaves, stalks
    • D01B1/10—Separating vegetable fibres from stalks or leaves
    • D01B1/48—Drying retted fibres
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01C—CHEMICAL OR BIOLOGICAL TREATMENT OF NATURAL FILAMENTARY OR FIBROUS MATERIAL TO OBTAIN FILAMENTS OR FIBRES FOR SPINNING; CARBONISING RAGS TO RECOVER ANIMAL FIBRES
    • D01C1/00—Treatment of vegetable material
    • 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
    • D06M15/21—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • D06M15/227—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds of hydrocarbons, or reaction products thereof, e.g. afterhalogenated or sulfochlorinated
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2323/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
    • C08J2323/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2323/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
    • C08J2323/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
    • C08J2323/10—Homopolymers or copolymers of propene
    • C08J2323/12—Polypropene

Definitions

  • the invention relates to a fiber-reinforced plastic material, comprising natural fibers produced from biomass and a method for producing the fiber-reinforced plastic material.
  • thermoplastic such as polyethylene natural fibers such as hemp, flax or wood fibers.
  • Such natural fibers have the advantage of complete biodegradability and low
  • Plastic had deteriorated mechanical properties. Therefore, natural fibers have hitherto been regarded predominantly as a filler, merely used to reduce the proportion of non-organic material. In addition, the field of use was limited due to the poor mechanical properties of such compounds. A major field of application of conventional natural fiber-coated plastic materials is in automotive engineering
  • panels are made in the interior of a motor vehicle from such materials.
  • Wood fibers consist of elongated wood cells, with wood fibers containing about one fifth of lignin and four fifths of cellulose depending on the type of wood.
  • - Bast fibers consist of multicellular fiber bundles. They are long-drawn and thick-walled cells that are unharvested. The main ingredient of bast fibers are essentially
  • Typical natural fibers based on bast fibers are, for example, hemp fibers
  • Natural fibers from green cuttings consist predominantly of hard fibers which are also essentially based on cellulose.
  • Hard fibers usually have a higher hardness than bast fibers, but the hard fibers are more sensitive to bending stress.
  • the invention has for its object to provide a fiber-reinforced plastic material based on natural fibers, which has improved mechanical properties.
  • the fiber-reinforced plastic material according to the invention comprises fibrous biomass with a low lignin content
  • Natural fibers which are treated and embedded in the plastic material and connected to this, that the fiber-reinforced plastic material compared to the plastic material without natural fibers has a higher tensile modulus.
  • Under low Lignin content is based on the total mass of natural fibers, a lignin content of less than 5 wt.% To understand.
  • the fiber-reinforced plastic material has a tensile modulus according to ISO 527 of at least 3,000 MPa, preferably of at least 4,000 MPa.
  • Natural fibers a tensile modulus of up to 6,000 MPa can be achieved. These values are twice to four times the tensile modulus of a virgin virgin polypropylene.
  • thermoplastic preferably as thermoplastic
  • thermoplastics polypropylene and polyethylene for a variety of applications particularly commonly used
  • thermoplastic plastics are. Recycled plastics are also considered here.
  • Grass clippings and rye greens are characterized by a particularly low content of lignin.
  • the natural fibers of these substances consist mainly of alpha and hemi-cellulose.
  • Further advantageous raw materials for the biomass are bargasse, ie ensiled sugar cane waste and spent grains, in particular spent grains from husks. These are processed by the process according to the invention
  • Natural fibers are present in a particularly high purity, so that these natural fibers, provided with a primer, as
  • Fiber reinforcement in plastics lead to a significant improvement in the mechanical properties of the plastic. This is surprising in that the grass fibers and rye fibers, which consist predominantly of hard fibers, could be expected to have a lower strength than, for example, bast fibers-based
  • thermoplastic thermoplastic
  • Plastic processing can be processed, in particular, provided with the natural fibers plastic material can be processed in conventional injection molding and extrusion equipment.
  • the fiber-reinforced plastic material described above is supplied as a raw material, preferably in the form of pellets for further processing, wherein the fiber-reinforced plastic material by injection molding and extrusion a variety of different
  • Plastic articles can be produced. It is particularly advantageous that the fiber-reinforced plastic material conventional
  • Injection molding machines and extrusion machines can be supplied.
  • the method according to the invention for the provision and processing of natural fibers comprises the following steps:
  • the suspension at least one means for equipping the Natural fibers containing at least one adhesion promoter
  • biomass containing natural fibers is provided.
  • These may be natural fiber-containing plant parts of various plants. Especially suitable for that
  • plant parts which are not woody and therefore contain only small amounts or no lignin. Also advantageous are plant parts that are not horny to a small extent or not at all. Cornification is usually triggered by drying in plant fibers. Due to the removal of water between the cellulose molecules, covalent bonds form, causing the plant fibers to become brittle and the tendency to break increase. Therefore, it is proposed to use such plant parts
  • the dry matter contents are between 25 and 40 wt.%.
  • Dry matter content refers to the content of dry substance that remains when all water is removed.
  • a content of dry matter of 25 to 40% by weight therefore conversely corresponds to a water content of between 75 and 60% by weight.
  • Another suitable substance is rye green cuttings, with other renewable fiber-containing raw materials available depending on the region can be. However, these should have a low content of lignin, preferably less than 5 wt.% And consist mainly of hard fibers.
  • other conceivable raw materials are Bargasse, in particular ensiled
  • step 2 a suspension containing the biomass is prepared by adding water. This will be the biomass
  • the preparation of the suspension takes place exclusively with water, this also forms in the subsequent steps, the solvent which absorbs the soluble components of the biomass.
  • a first purification of the biomass takes place, wherein adhering to the biomass impurities and unwanted
  • the natural fibers are extracted from the biomass.
  • a macerator is preferably used, which separates the macerator supplied biomass into individual components and due to the friction generated opens the cells filled with cell liquid and leaves the cell juice.
  • a macerator on a rotating cutting knife which strikes along with or without touching a counter knife.
  • the counter knife can also be designed as a sieve.
  • the result of maceration is a suspension in which the biomass contained natural fibers and the liquid components contained in the biomass in the aqueous suspension go into solution.
  • the isolated individual natural fibers exist in the
  • Cutting time of biomass is dependent.
  • both types of cellulose are relevant: the alpha-cellulose allows a high mechanical stability of the fibers and the hemi-cellulose allows uniform incorporation of the finishing agent, such as the primer or the flame retardant.
  • hemi-cellulose improves the processability of the plastic compound, in particular its flowability in one
  • thermoplastic processing Preferred proportions of alpha-cellulose and hemi-cellulose are, in each case based on the total mass of 20 to 30 wt.% Alpha-cellulose and 15 to 25 wt.% Hemi-cellulose, most preferably the fibrous biomass contains 25 wt.% Alpha-cellulose and 15% by weight hemi-cellulose. Overall, the proportion of alpha-cellulose should be greater than that
  • step 4 a separation of the liquid from the
  • the suspension is fed to a press, preferably a screw press.
  • a press preferably a screw press.
  • the press there is a
  • Ingredients such as cell water, carbohydrates, proteins and
  • the solid in particular includes the natural fibers.
  • steps 2 to 4 are repeated at least once, preferably twice.
  • Purified water is used to prepare the suspension.
  • steps 2 to 4 which can also be referred to as a purification process, results in a particularly high purity of natural fibers.
  • This high purity of natural fibers is characterized by a particularly low content of natural fibers in carbohydrates and proteins.
  • the degree of purity of a natural fiber can be determined by the degree of
  • Coloring ability can be quantified.
  • natural fibers are dyed with a dye and then investigated, in which way the dye has incorporated or deposited in the natural fibers.
  • Suspension added a means of equipping the natural fibers. It is also conceivable to add to the suspension a combination of different agents. The finishing agent is deposited from the
  • the natural fibers special properties, such as increased mechanical strength values, special color design,
  • Thermoplastic plastics includes the agent one
  • Adhesion promoters This may comprise a carboxylated polypropylene, wherein for the carboxylation in particular maleic anhydride
  • Polypropylene is provided.
  • the bonding agent improves the bonding agent
  • the primer may be provided dissolved or suspended in the water. In this way, the primer may be provided dissolved or suspended in the water.
  • the natural fibers have a content of adhesion promoter of 0.5 wt.% To 5 wt.%, Advantageously, the content of
  • Adhesion promoters between 1% by weight and 3.5% by weight, with a content of adhesion promoter of from 1.25% by weight to 2.5% by weight being particularly preferred.
  • step 6 the natural fibers are dried.
  • this is the first drying of the
  • Natural fibers which were always kept moist until that time.
  • the drying is carried out in terms of the drying temperature and the drying time in such a way that the
  • Natural fibers are not damaged and a cornification
  • the drying is carried out in such a way that a sufficient amount of residual moisture is contained in the natural fibers, so that no keratinization of natural fibers takes place even after completion of the drying.
  • Fiber reinforcement in a plastic material is preferably carried out in a multi-stage process with pre- and final drying.
  • Drying process involves two-stage drying.
  • a first stage the predrying is carried out a drying in a belt dryer.
  • An advantageous drying of the first stage takes place at hot air temperatures of 60 to 80 ° C and a
  • the temperature is chosen so that a hornification of natural fibers is largely prevented. Furthermore, excessive local drying of the air stream facing natural fibers is prevented.
  • the final drying the natural fibers are dried in a stream of air, wherein the natural fibers are exposed directly to a heated air flow and carried with it.
  • an air-layer dryer is preferably used in which the natural fibers and the air flow in the DC through the
  • Air dryer are performed.
  • the air temperature of the heated air stream is preferably between 75 ° C and 1 10 ° C and the residence time of the natural fibers is 0.5 to 3 s.
  • step 7 the natural fibers are mixed with granules of a plastic, wherein the granules are distributed in the pores of the natural fiber matrix due to the large bulkiness.
  • step 8 the natural fibers provided with the granules are fed to an agglomeration device, here an extruder.
  • an extruder those provided with the granules
  • Natural fibers compressed and heated by friction In this case, the rest of the moisture contained in the natural fibers escapes and escapes from the extruder as steam.
  • an activation of the bonding agent is received by the direct contact with both the natural fibers and the plastic a particularly strong bond with both substances, so that the Natural fibers are particularly firmly integrated into the plastic.
  • the plastic at least partially melts, so that the natural fibers pass through the in the extruder
  • the pellets thus produced can be processed with conventional equipment for plastics processing, in particular, the pellets in conventional injection molding and extrusion equipment
  • the pellets are processed.
  • the pellets are fed to an injection molding or extrusion plant and molded into articles there.
  • equipping the natural fiber becomes one
  • the agent may comprise a flame retardant, in particular based on boron.
  • the means for equipping may comprise a light stabilizer.
  • a dye allows the coloring of natural fibers, the dye
  • the figure schematically illustrates a method for the provision and processing of natural fibers.
  • biomass containing natural fibers is provided.
  • These may be natural fiber-containing plant parts of various plants. Especially suitable for that
  • plant parts which are not woody and therefore contain only small amounts or no lignin. Also advantageous are plant parts that are not horny to a small extent or not at all. Cornification is usually triggered by drying in plant fibers. It is therefore proposed to use those parts of plants which have not been dried. Freshly cut grass or siled grass are particularly suitable for the process according to the invention. In this way a biomass
  • Dry matter content refers to the content of dry substance that remains when all water is removed.
  • a content of dry matter of 25 to 40% by weight therefore corresponds to a water content of between 75 and 60% by weight.
  • the silage has the advantage that the only available at certain seasons grass throughout the year without
  • a suspension containing the biomass is prepared by adding water.
  • the biomass is added to a mixing tank, water is added and brought into suspension by means of an agitator arranged in the mixing tank with water.
  • a first purification of the biomass wherein adhering to the biomass impurities and unwanted impurities are dissolved in the water.
  • the natural fibers are extracted from the biomass.
  • a macerator is used, which separates the macerator-supplied suspended biomass into individual components and due to the generated friction opens the cells filled with cell liquid and leaves the cell juice.
  • a macerator on a rotating cutting blade which strikes non-contact on a counter knife designed as a sieve. The result of the maceration is a suspension in which the in the
  • Biomass contained natural fibers are isolated and the biomass contained in the liquid components in the aqueous
  • the isolated natural fibers consist essentially of alpha-cellulose and hemi-cellulose, the natural fibers containing 25% by weight of alpha-cellulose and 15% by weight of hemi-cellulose.
  • step 4 a separation of the liquid from the
  • the suspension is fed to a screw press.
  • a separation of the screw press In the screw press, a separation of the screw press
  • Step 2) to 4 Water containing the components dissolved in the water such as cell water, carbohydrates, proteins and impurities from the natural fibers contained in the biomass.
  • steps 2) to 4 are repeated twice.
  • purified water is used to prepare the suspension, which means that water is provided without the previously dissolved constituents.
  • steps 2 to 4 which are also referred to as purification process, results in a particularly high purity of natural fibers.
  • a means for equipping the natural fibers is added to the purified water. This agent is then dissolved in the aqueous suspension and is deposited on the natural fibers in the wet phase.
  • the purity of natural fibers is determined by a dyeing test
  • Dyes used are Columbia real black BV 150% of CBW Chemie GmbH Wolfen, Solaminlichtgelb 5G 167% of CBW Chemie GmbH Wolfen, Solaminschreibscharlach FB 200% of CBW Chemie GmbH Wolfen, DyStar Remazol Yellow RR Gran of DyStar Colors Distribution GmbH Frankfurt / Main, DyStar Levafix Brilliant Red CA of DyStar Colors Distribution GmbH Frankfurt am Main and DyStar Remazol Red CA Gran of DyStar Colors Distribution GmbH Frankfurt am Main.
  • the examined with the microscope natural fibers are characterized by an almost continuous coloring, there are only minor defects. Starting from the by the Microscope visible surface of a natural fiber is the
  • the means for equipping contains a bonding agent based on a carboxylated with maleic anhydride polypropylene for better connectability to thermoplastics.
  • the composition further contains a flame retardant based on boron
  • the agent may be additionally provided with a light stabilizer and a dye allows the continuous coloring of natural fibers.
  • step 5 the natural fibers are dried.
  • this is the first drying of the
  • Natural fibers which were always kept moist until that time. To avoid cornification, the drying is carried out in such a way that the natural fibers after drying have a content of dry matter of 88 to 92 wt.%, At most 95 wt.% Have.
  • the drying takes place in a two-stage process. In a first stage, drying takes place in a belt dryer
  • the belt dryer is designed so that only a portion of the dried natural fibers is removed, while the remaining part of the
  • the natural fibers are placed in a stream of heated air and passed in co-current with the heated air, the natural fibers releasing moisture to the co-current air.
  • the natural fibers For this drying is a
  • Natural fibers entrained in the air flow and dried in a short time are preferably between 75 ° C and 110 ° C and the residence time of the natural fibers in the device is preferably between 0.5 s and 3 s done.
  • the air flow is accelerated by means of a blower to a speed of 1 m / s to 6 m / s.
  • the drying parameters during the drying in the second stage are adjusted so that the natural fibers have a content of dry matter of 88 to 92 wt.%, At most 95 wt.% After the second drying. After drying, the natural fibers are separated from the air, this can be done for example by a cyclone.
  • the natural fibers removed after the second drying have a bulk of 31 kg / m 3 .
  • the bulkiness can be quantified by a bulk density, or by determining the bulk density.
  • To determine the bulkiness of natural fibers are blown into an open-topped, dimensionally stable container with the dimensions of 1 m x 1 mx 0.25 in or manually filled and smoothed off at the top of the container, then the Weight of natural fibers filled in the container weighed. From the mass and the volume (0.25 m 3 ) the bulkiness is calculated. In this case, individual results and an average of three experiments must be stated.
  • a bulkiness of natural fibers according to the invention is between 30 kg / m 3 and 50 kg / m 3 , preferably between 35 and 60 kg / m 3 .
  • the natural fibers produced by the method described above are then packaged and sent for further use.
  • the natural fibers can either be formed into insulation boards or be introduced directly as blowing insulation into a building.
  • the natural fibers are mixed with granules of a plastic, the granules being distributed in the pores of the natural fiber matrix due to the large bulkiness. Subsequently, provided with the granules natural fibers of a device for
  • Plastic enters into a firm bond with both substances, so that the natural fibers are firmly integrated into the plastic. Furthermore, the plastic melts, whereby the natural fibers are uniformly melted in the melt by the screw arranged in the extruder
  • Plastic be distributed. After melting, the mixture becomes of natural fibers and plastic pressed through a sieve on which a cutting knife along strips. In this way, pellets of a fiber-reinforced plastic material are formed.
  • a thermoplastic material in particular polypropylene or polyethylene is used, wherein the two aforementioned plastics may also be formed as recycled material.
  • the pellets thus produced can be processed with conventional equipment for plastics processing, in particular, the pellets in conventional injection molding and extrusion equipment
  • the pellets are processed.
  • the pellets are fed to an injection molding or extrusion plant and molded into articles there.
  • test piece consisting of a fiber-reinforced plastic containing 50% by weight of the natural fibers according to the invention and 50% by weight of polypropylene achieves the following values:
  • melt flow index as the index of the flow behavior of a thermoplastic material, is compared to a pure
  • Polypropylene reduced by only 20%. This indicates similar good processability of the fiber reinforced plastic compared to a pure plastic. However, the strength values improve significantly over pure polypropylene. Both the tensile modulus and the impact strength of the fiber reinforced Plastics are significantly better than the comparative values of a polypropylene.
  • the values for pure polypropylene as new are: Density 0.9 g / cm 3
  • a test specimen which consists of ground, ie recycled fiber-reinforced plastic of the type described above, has a tensile strength which is also 32 MPa and thus behaves comparable to a non-processed specimen.
  • the fiber-reinforced plastic material according to the invention is particularly suitable for recycling.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Health & Medical Sciences (AREA)
  • Polymers & Plastics (AREA)
  • Materials Engineering (AREA)
  • Medicinal Chemistry (AREA)
  • Organic Chemistry (AREA)
  • Textile Engineering (AREA)
  • Wood Science & Technology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • General Chemical & Material Sciences (AREA)
  • Molecular Biology (AREA)
  • Zoology (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)

Abstract

L'invention concerne une matière plastique renforcée par des fibres, comprenant des fibres naturelles qui sont préparées à partir de la biomasse et qui sont incorporées à la matière plastique, les fibres naturelles issues de la biomasse fibreuse étant produites avec une faible teneur en lignine et étant incorporées et liées à la matière plastique, de telle manière que la matière plastique renforcée par des fibres présente un module d'élasticité à la traction supérieur à celui de la matière plastique sans fibres naturelles
PCT/EP2012/000354 2011-02-02 2012-01-26 Matière plastique renforcée par des fibres Ceased WO2012104041A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP12707697.4A EP2670792A1 (fr) 2011-02-02 2012-01-26 Matière plastique renforcée par des fibres

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE201110010193 DE102011010193A1 (de) 2011-02-02 2011-02-02 Faserverstärktes Kunststoffmaterial
DE102011010193.4 2011-02-02

Publications (1)

Publication Number Publication Date
WO2012104041A1 true WO2012104041A1 (fr) 2012-08-09

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Application Number Title Priority Date Filing Date
PCT/EP2012/000354 Ceased WO2012104041A1 (fr) 2011-02-02 2012-01-26 Matière plastique renforcée par des fibres

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Country Link
EP (1) EP2670792A1 (fr)
DE (1) DE102011010193A1 (fr)
WO (1) WO2012104041A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3235875A1 (fr) * 2016-04-22 2017-10-25 Shi Xiang Industrial Co., Ltd. Composite bioplastique contenant de la drêche de brasserie et procédé de fabrication de celui-ci
WO2024208284A1 (fr) * 2023-04-06 2024-10-10 湖南协成管业科技有限公司 Procédé de préparation d'un matériau composite de pe modifié par des fibres de bambou naturel respectueux de l'environnement et produit, et utilisation
EP4585666A1 (fr) 2024-01-05 2025-07-16 Müller, Marc Matériau composite

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US20060043629A1 (en) * 2004-08-27 2006-03-02 Board Of Trustees Of Michigan State University Cellulosic biomass soy flour based biocomposites and process for manufacturing thereof
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WO2008073186A2 (fr) * 2006-10-26 2008-06-19 Marshall Medoff Traitement de biomasse
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WO2011047804A1 (fr) * 2009-10-23 2011-04-28 Biowert Ag Matériau en matière plastique hautement résistant au feu, son procédé de production, et particules de matière plastique en un tel matériau en matière plastique

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