CN115449232B - Method for preparing wood-plastic composite light high-strength material by using waste woody biomass - Google Patents
Method for preparing wood-plastic composite light high-strength material by using waste woody biomass Download PDFInfo
- Publication number
- CN115449232B CN115449232B CN202211275180.5A CN202211275180A CN115449232B CN 115449232 B CN115449232 B CN 115449232B CN 202211275180 A CN202211275180 A CN 202211275180A CN 115449232 B CN115449232 B CN 115449232B
- Authority
- CN
- China
- Prior art keywords
- wood
- woody biomass
- plastic composite
- composite light
- powder
- 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.)
- Active
Links
- 239000000463 material Substances 0.000 title claims abstract description 49
- 239000002028 Biomass Substances 0.000 title claims abstract description 36
- 229920001587 Wood-plastic composite Polymers 0.000 title claims abstract description 34
- 239000011155 wood-plastic composite Substances 0.000 title claims abstract description 34
- 239000002699 waste material Substances 0.000 title claims abstract description 25
- 238000000034 method Methods 0.000 title claims abstract description 17
- 239000000843 powder Substances 0.000 claims abstract description 47
- 238000001035 drying Methods 0.000 claims abstract description 19
- 239000000203 mixture Substances 0.000 claims abstract description 18
- 229920003023 plastic Polymers 0.000 claims abstract description 16
- 239000004033 plastic Substances 0.000 claims abstract description 16
- 239000003960 organic solvent Substances 0.000 claims abstract description 14
- 239000007822 coupling agent Substances 0.000 claims abstract description 13
- 238000000748 compression moulding Methods 0.000 claims abstract description 10
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims abstract description 8
- 238000002156 mixing Methods 0.000 claims abstract description 8
- 238000003756 stirring Methods 0.000 claims abstract description 8
- 238000002791 soaking Methods 0.000 claims abstract description 5
- 229920000642 polymer Polymers 0.000 claims abstract description 4
- 239000002023 wood Substances 0.000 claims description 10
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 claims description 8
- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 claims description 8
- 239000002861 polymer material Substances 0.000 claims description 8
- -1 polypropylene Polymers 0.000 claims description 8
- 235000017166 Bambusa arundinacea Nutrition 0.000 claims description 7
- 235000017491 Bambusa tulda Nutrition 0.000 claims description 7
- 235000015334 Phyllostachys viridis Nutrition 0.000 claims description 7
- 240000008042 Zea mays Species 0.000 claims description 7
- 235000005824 Zea mays ssp. parviglumis Nutrition 0.000 claims description 7
- 235000002017 Zea mays subsp mays Nutrition 0.000 claims description 7
- 239000011425 bamboo Substances 0.000 claims description 7
- 235000005822 corn Nutrition 0.000 claims description 7
- 239000002245 particle Substances 0.000 claims description 7
- 239000010902 straw Substances 0.000 claims description 7
- HEDRZPFGACZZDS-UHFFFAOYSA-N Chloroform Chemical compound ClC(Cl)Cl HEDRZPFGACZZDS-UHFFFAOYSA-N 0.000 claims description 6
- 239000004698 Polyethylene Substances 0.000 claims description 6
- 239000004743 Polypropylene Substances 0.000 claims description 6
- 229920001577 copolymer Polymers 0.000 claims description 6
- 229920000573 polyethylene Polymers 0.000 claims description 6
- 229920001155 polypropylene Polymers 0.000 claims description 6
- XECAHXYUAAWDEL-UHFFFAOYSA-N acrylonitrile butadiene styrene Chemical compound C=CC=C.C=CC#N.C=CC1=CC=CC=C1 XECAHXYUAAWDEL-UHFFFAOYSA-N 0.000 claims description 5
- 239000004676 acrylonitrile butadiene styrene Substances 0.000 claims description 5
- 229920000122 acrylonitrile butadiene styrene Polymers 0.000 claims description 5
- 229920001912 maleic anhydride grafted polyethylene Polymers 0.000 claims description 5
- 229920003229 poly(methyl methacrylate) Polymers 0.000 claims description 5
- 239000004926 polymethyl methacrylate Substances 0.000 claims description 5
- 241000609240 Ambelania acida Species 0.000 claims description 4
- 239000010905 bagasse Substances 0.000 claims description 4
- 239000004800 polyvinyl chloride Substances 0.000 claims description 4
- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 claims description 4
- WYTZZXDRDKSJID-UHFFFAOYSA-N (3-aminopropyl)triethoxysilane Chemical compound CCO[Si](OCC)(OCC)CCCN WYTZZXDRDKSJID-UHFFFAOYSA-N 0.000 claims description 2
- 235000014676 Phragmites communis Nutrition 0.000 claims description 2
- FPYJFEHAWHCUMM-UHFFFAOYSA-N maleic anhydride Chemical compound O=C1OC(=O)C=C1 FPYJFEHAWHCUMM-UHFFFAOYSA-N 0.000 claims description 2
- 229920000915 polyvinyl chloride Polymers 0.000 claims description 2
- 244000082204 Phyllostachys viridis Species 0.000 claims 1
- 238000005452 bending Methods 0.000 abstract description 7
- 238000005265 energy consumption Methods 0.000 abstract description 3
- 235000008331 Pinus X rigitaeda Nutrition 0.000 description 8
- 235000011613 Pinus brutia Nutrition 0.000 description 8
- 241000018646 Pinus brutia Species 0.000 description 8
- 241001330002 Bambuseae Species 0.000 description 6
- 238000006243 chemical reaction Methods 0.000 description 5
- 239000012153 distilled water Substances 0.000 description 5
- 238000001878 scanning electron micrograph Methods 0.000 description 5
- 238000007873 sieving Methods 0.000 description 5
- 238000005406 washing Methods 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 238000000643 oven drying Methods 0.000 description 4
- 238000002360 preparation method Methods 0.000 description 4
- 238000010298 pulverizing process Methods 0.000 description 4
- 238000007731 hot pressing Methods 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- QRIMLDXJAPZHJE-UHFFFAOYSA-N 2,3-dihydroxypropyl 2-methylprop-2-enoate Chemical compound CC(=C)C(=O)OCC(O)CO QRIMLDXJAPZHJE-UHFFFAOYSA-N 0.000 description 2
- 240000000111 Saccharum officinarum Species 0.000 description 2
- 235000007201 Saccharum officinarum Nutrition 0.000 description 2
- 238000013329 compounding Methods 0.000 description 2
- 238000004134 energy conservation Methods 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 239000002893 slag Substances 0.000 description 2
- 229920001169 thermoplastic Polymers 0.000 description 2
- 239000006087 Silane Coupling Agent Substances 0.000 description 1
- 229920002522 Wood fibre Polymers 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010292 electrical insulation Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- VOZRXNHHFUQHIL-UHFFFAOYSA-N glycidyl methacrylate Chemical compound CC(=C)C(=O)OCC1CO1 VOZRXNHHFUQHIL-UHFFFAOYSA-N 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 238000007655 standard test method Methods 0.000 description 1
- 230000008961 swelling Effects 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 239000002025 wood fiber Substances 0.000 description 1
Classifications
-
- 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
-
- 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
- C08J3/00—Processes of treating or compounding macromolecular substances
- C08J3/20—Compounding polymers with additives, e.g. colouring
- C08J3/205—Compounding polymers with additives, e.g. colouring in the presence of a continuous liquid phase
- C08J3/21—Compounding polymers with additives, e.g. colouring in the presence of a continuous liquid phase the polymer being premixed with a liquid phase
-
- 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
- C08L23/04—Homopolymers or copolymers of ethene
- C08L23/06—Polyethene
-
- 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
- C08J2397/00—Characterised by the use of lignin-containing materials
- C08J2397/02—Lignocellulosic material, e.g. wood, straw or bagasse
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Wood Science & Technology (AREA)
- Materials Engineering (AREA)
- Dry Formation Of Fiberboard And The Like (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention discloses a method for preparing a wood-plastic composite light high-strength material by utilizing waste woody biomass, which comprises the following steps: (1) Extracting the waste woody biomass powder with absolute ethyl alcohol for dewaxing pretreatment, and drying for later use; (2) Firstly, uniformly mixing an organic solvent and a coupling agent, and fully soaking the mixture with the pretreated and dried waste woody biomass powder; finally, adding the plastic polymer and the compatilizer, and stirring until the mixture is fully and uniformly mixed to obtain a mixture; (3) And (3) carrying out compression molding on the mixture, demolding and drying to obtain the wood-plastic composite light-weight high-strength material. The invention has simple process, low energy consumption and excellent product performance, and the tensile strength is 20-40MPa, and the bending strength is 200-380MPa.
Description
Technical Field
The invention belongs to the technical field of biomass wood-plastic composite materials, and particularly relates to a method for preparing a wood-plastic composite light-weight high-strength material by using waste woody biomass.
Background
The Biomass Wood-plastic composite material (Biomass Wood-Plastic Composites) is a novel environment-friendly composite material which is developed in recent years, and is prepared by taking lignocellulose Biomass particles as a reinforcing phase (comprising Wood powder, bamboo powder, straw and the like), taking thermoplastic plastics as a matrix (comprising polyethylene, polypropylene, polyvinyl chloride and the like), carrying out melt compounding, and adopting molding processing modes such as hot pressing, extrusion, injection and the like. The biomass wood-plastic composite material is based on thermoplastic plastics and wood fibers, has the advantages of excellent performance, low price, good strength and the like, so that the research of people on the biomass wood-plastic composite material is gradually developed and is continuous, huge achievements are obtained, and the biomass wood-plastic composite material is developed into a complete industry. However, in the traditional preparation process of the biomass wood-plastic composite material, the plastic polymer is heated and melted firstly to be mixed with the biomass filler at equal price, and the preparation process needs to consume more energy and is complex to operate. Therefore, the biomass wood-plastic composite light high-strength material with excellent performance and excellent strength is obtained by a method with simple research process, energy conservation and environmental friendliness, and has important research significance and application value for high-valued application of lignocellulose biomass and plastic recycling.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention aims to better solve the problems of low comprehensive utilization rate of waste biomass materials, high energy consumption and complex process route in the traditional wood-plastic material preparation process, and provides a preparation method of a wood-plastic composite light high-strength material with simple process, energy conservation and excellent performance.
In order to achieve the technical purpose, the invention adopts the following technical scheme:
a method for preparing a wood-plastic composite light high-strength material by utilizing waste woody biomass comprises the following steps:
(1) Extracting the waste woody biomass powder with absolute ethyl alcohol for dewaxing pretreatment, and drying for later use;
(2) Firstly, uniformly mixing an organic solvent and a coupling agent, fully soaking the mixture with the pretreated and dried waste woody biomass powder, and finally, adding a plastic polymer material and a compatilizer, and stirring the mixture until the mixture is fully and uniformly mixed to obtain a mixture;
(3) And (3) carrying out compression molding on the mixture, demolding and drying to obtain the wood-plastic composite light-weight high-strength material.
Further, in the step (1), the waste woody biomass is selected from any one or a combination of more than two of corn stalk, straw, bamboo, reed, bagasse and wood powder, and the particle size of the powder is less than 100 meshes.
Further, in the step (2), the waste woody biomass powder, the organic solvent, the coupling agent, the plastic polymer and the compatilizer are prepared from the following components in parts by mass:
further, in the step (2), the organic solvent is selected from at least one of acetone, chloroform and tetrahydrofuran.
Further, in the step (2), the coupling agent is at least one selected from gamma-aminopropyl triethoxysilane (KH 550) and gamma-methacryloxy trimethoxysilane (KH 570).
Further, in the step (2), the plastic polymer material is at least one selected from polypropylene (PP), polyethylene (PE), polyvinyl chloride (PVC), acrylonitrile-butadiene-styrene copolymer (ABS) and polymethyl methacrylate (PMMA), and the particle size is less than 150 μm.
Further, in the step (2), the compatilizer is at least one selected from maleic anhydride grafted polyethylene (PE-g-MAH), maleic anhydride grafted ethylene-octene copolymer (POE-g-MAH) and glycidyl methacrylate grafted ethylene-octene copolymer (POE-g-GMA), and the particle size is smaller than 150 mu m.
Further, in the step (3), the conditions of the compression molding are as follows: the pressure is 10-20MPa, and the holding time is 60-90s.
Further, in the step (3), the drying process is as follows: firstly, drying in the shade for 4-8h under the condition that the temperature is 20-40 ℃ and the relative humidity of air is less than 60%, and then drying for 4-8h under the condition of 80-100 ℃.
The invention utilizes the adsorption of the porous waste woody biomass powder to the organic solvent and the organic solvent to induce the dissolution and swelling of the plastic polymer material, so as to promote the combination between the waste woody biomass powder and the plastic polymer material, thereby preparing the wood-plastic composite light-weight high-strength material.
The invention has the following advantages and effects:
compared with the traditional hot-melting hot-pressing method technical route of firstly melting and compounding, and then adopting the hot-pressing, extrusion, injection and other molding processing modes, the invention simply stirs and mixes the waste wood biomass powder and the plastic high polymer material under the action of the organic solvent, the silane coupling agent and the compatilizer, and dries after mould pressing to obtain the wood-plastic composite light-weight high-strength material, and the invention has the advantages of simple process, low energy consumption, excellent product performance, 20-40MPa of product tensile strength and 200-380MPa of bending strength.
Drawings
FIG. 1 is a physical and SEM image of the wood-plastic composite light-weight high-strength material prepared in example 1;
fig. 2 is a physical and SEM image of the wood-plastic composite light-weight high-strength material prepared in example 2;
FIG. 3 is a physical and SEM image of the wood-plastic composite light-weight high-strength material prepared in example 3;
fig. 4 is a physical and SEM image of the wood-plastic composite light-weight high-strength material prepared in example 4;
fig. 5 is a physical and SEM image of the wood-plastic composite light-weight high-strength material prepared in example 5.
Detailed Description
The present invention will be described in further detail with reference to examples, but embodiments of the present invention are not limited thereto.
Example 1
Washing and drying corn straw with distilled water, crushing the corn straw into powder, sieving the powder with a 100-mesh sieve, adding the powder into a reaction container, extracting the powder with absolute ethyl alcohol for 6 hours to dewax the powder, and drying the powder in a drying oven at 105 ℃ to obtain corn straw powder; uniformly mixing 15 parts by mass of organic solvent acetone and 0.5 part by mass of coupling agent KH550, and then infiltrating with 10 parts by mass of corn straw powder; adding 8 parts by mass of polypropylene (PP) and 2 parts by mass of compatilizer maleic anhydride grafted polyethylene (PE-g-MAH) into the soaked corn stalk powder, and stirring uniformly in a closed environment of a stirrer; transferring the obtained mixture into a mold, and performing compression molding at normal temperature; and demolding the formed wet material, ventilating and airing for 4 hours at the temperature of 20 ℃ and the relative humidity of 60%, and transferring the wet material into an oven to dry for 8 hours at the temperature of 80 ℃ to obtain the full wood-plastic composite light-weight high-strength material. The tensile strength of the prepared plate is 21.5MPa, and the bending strength is 203.3MPa.
Example 2
Washing bagasse with distilled water, drying, pulverizing into powder, sieving with 120 mesh sieve, adding into a reaction container, extracting with absolute ethanol for 6 hr to dewax powder, oven drying at 105deg.C, and marking as bagasse powder; uniformly mixing 18 parts by mass of organic solvent chloroform and 0.8 part by mass of coupling agent KH550, and then infiltrating with 10 parts by mass of sugarcane slag powder; adding 10 parts by mass of Polyethylene (PE) and 2 parts by mass of compatilizer maleic anhydride grafted polyethylene (PE-g-MAH) into soaked sugarcane slag powder, and stirring uniformly in a closed environment of a stirrer; transferring the obtained mixture into a mold, and performing compression molding at normal temperature; and demolding the formed wet material, ventilating and airing for 6 hours at the temperature of 20 ℃ and the relative humidity of 50%, and transferring the wet material into an oven to dry for 6 hours at the temperature of 80 ℃ to obtain the wood-plastic composite light-weight high-strength material. The tensile strength of the prepared plate is 25.6MPa, and the bending strength is 243.6MPa.
Example 3
Washing bamboo chips with distilled water, drying, pulverizing into powder, sieving with 160 mesh sieve, adding into a reaction container, extracting with absolute ethanol for 6 hr to dewax the powder, oven drying at 105deg.C, and marking to obtain bamboo powder; uniformly mixing 20 parts by mass of organic solvent tetrahydrofuran and 0.8 part by mass of coupling agent KH570, and then soaking with 10 parts by mass of bamboo powder; adding 10 parts by mass of polyvinyl chloride (PVC) and 3 parts by mass of compatilizer maleic anhydride grafted polyethylene (PE-g-MAH) into the soaked bamboo powder, and stirring uniformly in a closed environment of a stirrer; transferring the obtained mixture into a mold, and performing compression molding at normal temperature; and demolding the formed wet material, ventilating and airing for 4 hours at the temperature of 30 ℃ and the relative humidity of 60%, and transferring the wet material into an oven to dry for 8 hours at the temperature of 80 ℃ to obtain the wood-plastic composite light-weight high-strength material. The tensile strength of the prepared plate is 28.8MPa, and the bending strength is 287.6MPa.
Example 4
Washing pine wood chips with distilled water, drying, pulverizing into powder, sieving with 200 mesh sieve, adding into a reaction container, extracting with absolute ethanol for 6 hr to dewax the powder, oven drying at 105deg.C, and marking as pine wood powder; uniformly mixing 20 parts by mass of acetone and 1.2 parts by mass of coupling agent KH550, and then soaking with 10 parts by mass of pine powder; adding 10 parts by mass of acrylonitrile-butadiene-styrene copolymer (ABS) and 4 parts by mass of compatilizer glycerol methacrylate grafted ethylene-octene copolymer (POE-g-GMA) into soaked pine wood powder, and stirring in a closed environment in a stirrer until the materials are uniform; transferring the obtained mixture into a mold, and performing compression molding at normal temperature; and demolding the formed wet material, ventilating and airing for 8 hours at the temperature of 20 ℃ and the relative humidity of 50%, and transferring the wet material into an oven to dry for 4 hours at the temperature of 100 ℃ to obtain the wood-plastic composite light-weight high-strength material. The tensile strength of the prepared plate is 34.6MPa, and the bending strength is 335.9MPa.
Example 5
Washing pine wood chips with distilled water, drying, pulverizing into powder, sieving with 200 mesh sieve, adding into a reaction container, extracting with absolute ethanol for 6 hr to dewax the powder, oven drying at 105deg.C, and marking as pine wood powder; uniformly mixing 30 parts by mass of tetrahydrofuran and 1.5 parts by mass of coupling agent KH550, and then infiltrating with 10 parts by mass of pine powder; 15 parts by mass of polymethyl methacrylate (PMMA) and 5 parts by mass of compatilizer glycerol methacrylate grafted ethylene-octene copolymer (POE-g-GMA) are added into soaked pine wood powder, and stirred in a closed environment in a stirrer until the mixture is uniform; transferring the obtained mixture into a mold, and performing compression molding at normal temperature; and demolding the formed wet material, ventilating and airing for 4 hours at the temperature of 40 ℃ and the relative humidity of 30%, and transferring the wet material into an oven to dry for 4 hours at the temperature of 100 ℃ to obtain the wood-plastic composite light-weight high-strength material. The tensile strength of the prepared plate is 39.4MPa, and the bending strength is 378.6MPa.
The films prepared in examples 1-5 were subjected to electron microscope scanning and mechanical property testing, the electron microscope scanning was carried out using the instrument model Zeiss Sigma 300, and the mechanical property testing method was as follows:
flexural strength: the flexural strength and flexural modulus of the materials were tested by an electronic universal mechanical tester according to ASTM D790 (standard test method for unreinforced and reinforced flexural properties of plastics and electrical insulation). Samples of 50X 12.7X1.5 mm were prepared, span 25.4mm, speed 2mm/min.
Tensile strength: dumbbell samples were prepared by testing the tensile strength, tensile modulus and elongation at break of the material by means of an electronic universal mechanical tester according to ASTM D638 (test method for tensile properties of plastics), selected from type IV, total length 115mm, total width at both ends 19mm, width of the middle narrow portion 6mm, length of the narrow portion 33mm, thickness 3.0mm, gauge length 25mm, and tensile speed 5mm/min.
The mechanical properties are shown in Table 1.
TABLE 1
| Sample of | Tensile Strength (MPa) | Flexural Strength (MPa) |
| Example 1 | 21.5 | 203.3 |
| Example 2 | 25.6 | 243.6 |
| Example 3 | 28.8 | 287.6 |
| Example 4 | 34.6 | 335.9 |
| Example 5 | 39.4 | 378.6 |
Claims (5)
1. The method for preparing the wood-plastic composite light high-strength material by utilizing the waste woody biomass is characterized by comprising the following steps of:
(1) Extracting the waste woody biomass powder with absolute ethyl alcohol for dewaxing pretreatment, and drying for later use;
(2) Firstly, uniformly mixing an organic solvent and a coupling agent, and fully soaking the mixture with the pretreated and dried waste woody biomass powder; finally, adding the plastic high polymer material and the compatilizer, and stirring until the materials are fully and uniformly mixed to obtain a mixture; the coupling agent is at least one selected from gamma-aminopropyl triethoxysilane and gamma-methacryloxy trimethoxy silane; the compatilizer is at least one selected from maleic anhydride grafted polyethylene, maleic anhydride grafted ethylene-octene copolymer and methacrylic glyceride grafted ethylene-octene copolymer, and the particle size is smaller than 150 mu m;
(3) Compression molding the mixture at normal temperature, demolding and drying to obtain the wood-plastic composite light-weight high-strength material; the conditions of the compression molding are as follows: the pressure is 10-20MPa, and the holding time is 60-90s; the drying process is as follows: firstly, drying in the shade for 4-8h at 20-40 ℃ and the relative humidity of air is less than 60%, and then drying for 4-8h at 80-100 ℃.
2. The method for preparing the wood-plastic composite light-weight high-strength material by utilizing the waste woody biomass according to claim 1, which is characterized in that: in the step (1), the waste woody biomass is selected from any one or more than two of corn stalk, straw, bamboo, reed, bagasse and wood powder, and the particle size of the powder is less than 100 meshes.
3. The method for preparing the wood-plastic composite light high-strength material by using the waste woody biomass as set forth in claim 1, wherein in the step (2), the waste woody biomass powder, the organic solvent, the coupling agent, the plastic polymer and the compatilizer are as follows in parts by mass:
10 parts by mass of waste woody biomass powder;
15-30 parts by mass of an organic solvent;
0.5 to 1.5 parts by mass of a coupling agent;
8-15 parts of plastic polymer material;
2-5 parts of compatilizer.
4. The method for preparing a wood-plastic composite light high-strength material using waste woody biomass according to claim 1, wherein in the step (2), the organic solvent is at least one selected from tetrahydrofuran, chloroform and acetone.
5. The method for preparing a wood-plastic composite light high-strength material by using waste woody biomass according to claim 1, wherein in the step (2), the plastic polymer material is at least one selected from polypropylene, polyethylene, polyvinyl chloride, acrylonitrile-butadiene-styrene copolymer and polymethyl methacrylate, and has a particle size of less than 150 μm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211275180.5A CN115449232B (en) | 2022-10-18 | 2022-10-18 | Method for preparing wood-plastic composite light high-strength material by using waste woody biomass |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211275180.5A CN115449232B (en) | 2022-10-18 | 2022-10-18 | Method for preparing wood-plastic composite light high-strength material by using waste woody biomass |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115449232A CN115449232A (en) | 2022-12-09 |
| CN115449232B true CN115449232B (en) | 2024-02-09 |
Family
ID=84310346
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211275180.5A Active CN115449232B (en) | 2022-10-18 | 2022-10-18 | Method for preparing wood-plastic composite light high-strength material by using waste woody biomass |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115449232B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60223843A (en) * | 1984-04-20 | 1985-11-08 | Human Ind Corp | Preparation of particulate polystyrene resin consisting mainly of wood flour |
| CN102837345A (en) * | 2012-09-14 | 2012-12-26 | 中南林业科技大学 | Preparation method of colored wood-plastic material |
| CN103450505A (en) * | 2013-09-16 | 2013-12-18 | 内蒙古大学 | Method for preparing board from waste polyurethane foam, waste plant fiber and waste xylonite |
| CN105778547A (en) * | 2016-03-17 | 2016-07-20 | 南京工业大学 | Method for preparing wood-plastic composite material by subcritical alcohol extrusion |
| CN106967282A (en) * | 2017-03-03 | 2017-07-21 | 广西秀美壮乡能源环保有限公司 | A kind of wood plastic composite and preparation method thereof |
| CN113789029A (en) * | 2021-09-29 | 2021-12-14 | 杭州师范大学 | Preparation method of wood-plastic composite material |
-
2022
- 2022-10-18 CN CN202211275180.5A patent/CN115449232B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60223843A (en) * | 1984-04-20 | 1985-11-08 | Human Ind Corp | Preparation of particulate polystyrene resin consisting mainly of wood flour |
| CN102837345A (en) * | 2012-09-14 | 2012-12-26 | 中南林业科技大学 | Preparation method of colored wood-plastic material |
| CN103450505A (en) * | 2013-09-16 | 2013-12-18 | 内蒙古大学 | Method for preparing board from waste polyurethane foam, waste plant fiber and waste xylonite |
| CN105778547A (en) * | 2016-03-17 | 2016-07-20 | 南京工业大学 | Method for preparing wood-plastic composite material by subcritical alcohol extrusion |
| CN106967282A (en) * | 2017-03-03 | 2017-07-21 | 广西秀美壮乡能源环保有限公司 | A kind of wood plastic composite and preparation method thereof |
| CN113789029A (en) * | 2021-09-29 | 2021-12-14 | 杭州师范大学 | Preparation method of wood-plastic composite material |
Also Published As
| Publication number | Publication date |
|---|---|
| CN115449232A (en) | 2022-12-09 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102051002B (en) | Zymolytic lignin-wood fiber-polyolefin hybrid composite material and preparation method thereof | |
| Ye et al. | Bio-based composites fabricated from wood fibers through self-bonding technology | |
| CN105038284B (en) | A kind of method that application wood fibre prepares wood plastic composite | |
| US7576147B2 (en) | Cellulosic biomass soy flour based biocomposites and process for manufacturing thereof | |
| Rao et al. | Fabrication and testing of natural fibre composites: Vakka, sisal, bamboo and banana | |
| Hajiha et al. | The use of sugarcane bagasse fibres as reinforcements in composites | |
| CN102731019B (en) | Method for preparing compound board substrate by using waste yam diosgenin fibers | |
| CN106868903A (en) | A kind of method that fibre reinforced composites are prepared with cotton stalk | |
| Srebrenkoska et al. | Biocomposites based on polylactic acid and their thermal behavior after recycing | |
| CN106188842B (en) | Polypropylene/bamboo particle/ultra micro bamboo charcoal composite material preparation method | |
| Cui et al. | A strong, biodegradable, and closed-loop recyclable bamboo-based plastic substitute enabled by polyimine covalent adaptable networks | |
| Li et al. | A spider-silk-inspired soybean protein adhesive with high-strength and mildew-resistant via synergistic effect of MXene nanosheets and chitosan | |
| CN104804452A (en) | Method of preparing polyvinyl wood-plastic composite with cotton stalks | |
| CN104761808A (en) | Method for preparing polyethylene-based wood-plastic composite material from rice husk powder | |
| CN106009248B (en) | A kind of preparation method of Chinese medicine dreg/plastic composite of high tenacity | |
| CN115449232B (en) | Method for preparing wood-plastic composite light high-strength material by using waste woody biomass | |
| CN113881208B (en) | Functionalized modified straw/polylactic acid composite material and preparation method thereof | |
| CN105694239B (en) | A kind of discarded printed circuit boards non-metal powder/ternary ethlene propyene rubbercompound material and preparation method thereof | |
| CN103788617B (en) | Polycarbonate/natural-fiber composite material and preparation method thereof | |
| Zhou et al. | Interfacial treatment-induced high-strength plant fiber/phenolic resin composite | |
| CN105778547B (en) | Method for preparing wood-plastic composite material by subcritical alcohol extrusion | |
| CN104761819A (en) | Method for preparing polyethylene-based wood-plastic composite material by utilizing bamboo powder | |
| CN104497471B (en) | Method for preparing wood-plastic composite material through subcritical water extrusion | |
| CN103773043A (en) | Preparation method for LDPE composite material | |
| CN111073101A (en) | Preparation method of MBS activated biomass straw blown film material |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |