CN104212142B - The plant oil based unsaturated polyester composite of a kind of bamboo fiber enhancing modified - Google Patents
The plant oil based unsaturated polyester composite of a kind of bamboo fiber enhancing modified Download PDFInfo
- Publication number
- CN104212142B CN104212142B CN201410477527.3A CN201410477527A CN104212142B CN 104212142 B CN104212142 B CN 104212142B CN 201410477527 A CN201410477527 A CN 201410477527A CN 104212142 B CN104212142 B CN 104212142B
- Authority
- CN
- China
- Prior art keywords
- unsaturated polyester
- bamboo fiber
- plant oil
- polyester resin
- matrix material
- 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
Abstract
The invention provides plant oil based unsaturated polyester composite of a kind of bamboo fiber enhancing modified and preparation method thereof, adopt acrylated epoxidized soybean oil as the blend of unsaturated polyester, and be matrix material prepared by reinforcement with bamboo fiber.Matrix material prepared by the present invention improved plant oil base unsaturated polyester used is not containing the reactive solvents-vinylbenzene with carinogenicity, therefore have environmental friendliness, feature that cost is low, the matrix material of preparation has very high tensile strength, flexural strength, modulus in flexure and shock strength.
Description
Technical field
The invention belongs to natural plant fibre and strengthen resin composite materials technical field, be specifically related to plant oil based unsaturated polyester composite of a kind of bamboo fiber enhancing modified and preparation method thereof.
Background technology
In recent years, the research utilizing natural plant fibre to strengthen polymer composites receives extensive concern.The wall chamber ratio of bamboo fiber, length-to-diameter ratio are all significantly greater than various xylon.Bamboo has the advantages that output is large, distribution is wide and growth velocity is fast, the bamboo fiber adopting biological solutions auxiliary machinery rolled-on method to prepare retains the composition such as higher hemicellulose and Mierocrystalline cellulose, the degree that fiber is damaged reduces greatly, having high strength and modulus, is a kind of strongthener with broad prospect of application.Unsaturated polyester (UPE) is the resin variety that in galss fiber reinforced resin matrix material, consumption is maximum.UPE resin mechanical property and manufacturability well, but use volatile vinylbenzene as thinner and linking agent in preparation process in a large number, and the air pollution problems inherent brought thus causes great concern.U.S. sanitaries in 2011 and public service administration formally by vinylbenzene with can suck glass fibre and be classified as carcinogens.Therefore, for fiber-reinforced resin matrix compound material industry, new reinforcement must be sought to reduce glass fibre usage quantity as far as possible, take measures to reduce the vinylbenzene consumption in matrix material preparation simultaneously.Current research in this regard both at home and abroad mainly contains: one is adopt polyurethane, trimeric cyanamide, resol etc. and UPE resin alloy, and to reduce vinylbenzene usage quantity and burst size, but the resin viscosity of preparation is high, and cost increases, complicated process of preparation; Two is in UPE resin, add functional vegetable and animals oils reduce cinnamic usage quantity, or be raw material with vegetable and animals oils, by synthesizing new resins such as radical polymerization, cationoid polymerisation, ring-opening metathesis polymerizations, but building-up process is still using Vinyl toluene or Dicyclopentadiene (DCPD) etc. as linking agent and thinner, the toxicity such as Vinyl toluene are larger, and this resinoid mechanical property is lower; Three is the reactive solvents using acrylic ester monomer as UPE resin, but resin wetting property is low, viscosity is large, glass transition temperature and solidification rate low, composite materials property is low.Be that UPE resin prepared by raw material with vegetable and animals oils, significant to the usage quantity reducing petroleum-based products, but generally must add some petroleum-based mixtures to obtain good performance, these material composition thermostabilitys are poor and lack and participate in some active groups of resin solidification.
Summary of the invention
The object of the present invention is to provide plant oil based UPE matrix material of a kind of bamboo fiber enhancing modified and preparation method thereof, solve vinylbenzene usage quantity in traditional UPE resin large, cause the problems such as atmospheric pollution.Bamboo fiber enhancing modified plant oil based UPE matrix material prepared by the present invention has very high tensile strength, flexural strength, modulus in flexure and shock strength.
For achieving the above object, the present invention adopts following technical scheme:
The plant oil based UPE matrix material of a kind of bamboo fiber enhancing modified is obtained by hot press forming technology by bamboo fiber and improved plant oil base UPE resin; Described improved plant oil base UPE resin adopts modified vegetable oil and solid UPE resin is blended obtains under certain condition.
The mass fraction of described matrix material feed composition is: bamboo fiber 80 ~ 100 parts, improved plant oil base UPE resin 80 ~ 100 parts.
Described modified vegetable oil is acrylated epoxidized soybean oil (English by name: AcrylatedEpoxidizedSoybeanOil, to be abbreviated as AESO); Blending Processes is: solid UPE resin 30 ~ 50 parts, modified vegetable oil 50 ~ 70 parts and initiator 3 ~ 7 parts are mixed to get improved plant oil base UPE resin under certain condition; Described is not O-phthalic acid type unsaturated polyester resin containing cinnamic solid UPE resin; Described initiator is peroxidized t-butyl perbenzoate.
The concrete preparation process of a kind of bamboo fiber enhancing modified as above plant oil based UPE matrix material is as follows:
(1) bamboo fiber after being cut into the fibrefelt of 20cm × 20cm specification through shredding, taking out from baking oven after being dried to over dry, wraps with plastic sealing bag, be cooled to room temperature for subsequent use at being placed in 100 ~ 105 DEG C;
(2) the bamboo fiber felt of 5 ~ 9 steps (1) is arranged into fibre mat by same direction is superimposed, two surfaces of improved plant oil base UPE resin mixture liquor even application in fibre mat, then to move in punching block and to cold pressing 3 ~ 8min with the pressure of 3 ~ 5MPa at 50 DEG C, make resin penetration enter in fibre mat; Then thermocompressor is warming up to 150 ~ 170 DEG C of hot pressing 20 ~ 40min under 3 ~ 5MPa pressure; Hot pressing completes the heat insulation pressurize 60 ~ 120min of rear mold, and makes it to naturally cool to room temperature.
Beneficial effect of the present invention is: the present invention adopts the combination of process parameters of optimization, the amount ratio (mass ratio) of bamboo fiber and improved plant oil base UPE resin is 1: 1, hot pressing temperature 160 DEG C, hot pressing time 40min, can prepare the plant oil based UPE matrix material of bamboo fiber enhancing modified of good mechanical performance with mould pressing process.Adopt improved plant oil base UPE as the matrix of matrix material, gained matrix material and traditional UPE resin (taking vinylbenzene as solvent) have suitable tensile strength, flexural strength and modulus in flexure for the matrix material of matrix, and have higher shock strength.
Accompanying drawing explanation
Fig. 1 is the tensile strength of bamboo fiber/UPE matrix material.Wherein, 70AESO represents that employing 70wt%AESO is the matrix material of UPE solvent; 60AESO represents that employing 60wt%AESO is the matrix material of UPE solvent; 50AESO represents that employing 50wt%AESO is the matrix material of UPE solvent; 50ST represents that employing 50wt% vinylbenzene is the matrix material of UPE solvent; 40ST represents that employing 40wt% vinylbenzene is the matrix material of UPE solvent; 30ST represents that employing 30wt% vinylbenzene is the matrix material of UPE solvent.In Fig. 2 with Fig. 3 X-coordinate, 70AESO, 60AESO, 50AESO, 50ST, 40ST and 30ST represent that implication is identical.In figure, rectangular column upper and lower horizontal line represents the standard deviation of data mean value, and without significant difference between expression two groups of data of same letter above histogram, otherwise difference is not remarkable.
Fig. 2 is the bending property of bamboo fiber/UPE matrix material.
Fig. 3 is the shock strength of bamboo fiber/UPE matrix material.
Embodiment
Embodiment 1
Raw material: bamboo fiber (mean length 22.81mm, width average 150 μm) is provided by Fujian Haibosi Chmeical Technology Co., Ltd.; Solid unsaturated polyester (UPE) resin is not containing cinnamic O-phthalic acid type unsaturated polyester resin (model: PG-ISOPlastic2, the monomethyl ether containing 4000ppm-Resorcinol stopper), purchased from American AshlandChemical company; Acrylated epoxidized soybean oil (AESO) purchased from American Sigma-Aldrich company; Initiator is peroxidized t-butyl perbenzoate (TBPB), purchased from American Sigma-Aldrich company.
The plant oil based UPE matrix material of bamboo fiber enhancing modified:
Improved plant oil base UPE resin mixture liquor is obtained than blended solid UPE resin, modified vegetable oil and initiator by certain quality.Bamboo fiber and improved plant oil base UPE resin mixture liquor are obtained the plant oil based UPE resin composite materials of bamboo fiber enhancing modified by hot-forming.Modified vegetable oil is AESO, and Blending Processes is: solid UPE resin 30g is milled to 80 ~ 100 order powder in mortar for subsequent use; AESO70g is placed in after flask heats 5min under 80 DEG C of oil baths, is stirred to after it dissolves completely and shifts out oil bath rapidly after slowly adding solid UPE toner; Thing to be mixed adds initiator 5g after being cooled to room temperature again, after being uniformly mixed 2min, namely obtains improved plant oil base UPE resin mixture liquor; The UPE resin adopted is O-phthalic acid type UPE resin; Initiator is TBPB.
Preparation method: bamboo fiber is through shredding and after being cut into the fibrefelt of 20cm × 20cm specification, taking out, wrap with plastic sealing bag, be cooled to room temperature for subsequent use at being placed in 100 ~ 105 DEG C after being dried to over dry from baking oven; The bamboo fiber felt of 5 ~ 9 is arranged into fibre mat by same direction is superimposed, two surfaces of improved plant oil base UPE resin mixture liquor even application in fibre mat, then to move in punching block and to cold pressing 5min with the pressure of 3.24MPa at 50 DEG C, make resin penetration enter in fibre mat; Then thermocompressor is warming up to 160 DEG C of hot pressing 40min under 3.24MPa pressure; Hot pressing completes the heat insulation pressurize 60min of rear mold, and makes it to naturally cool to room temperature.
In described preparation process, the amount ratio of solid UPE resin and modified vegetable oil is 3:7 according to mass ratio; The amount ratio 1: 1 of bamboo fiber and improved plant oil base UPE resin mixture liquor; The amount of initiator is 5% of improved plant oil base UPE resin mixture liquor quality.
Embodiment 2
Raw material: bamboo fiber (mean length 22.81mm, width average 150 μm) is provided by Fujian Haibosi Chmeical Technology Co., Ltd.; Solid unsaturated polyester (UPE) resin is not containing cinnamic O-phthalic acid type unsaturated polyester resin (model: PG-ISOPlastic2, the monomethyl ether containing 4000ppm-Resorcinol stopper), purchased from American AshlandChemical company; Acrylated epoxidized soybean oil (AESO) purchased from American Sigma-Aldrich company; Initiator is peroxidized t-butyl perbenzoate (TBPB), purchased from American Sigma-Aldrich company.
The plant oil based UPE matrix material of bamboo fiber enhancing modified:
Improved plant oil base UPE resin mixture liquor is obtained than blended solid UPE resin, modified vegetable oil and initiator by certain quality.Bamboo fiber and improved plant oil base UPE resin mixture liquor are obtained the plant oil based UPE resin composite materials of bamboo fiber enhancing modified by hot-forming.Modified vegetable oil is AESO, and Blending Processes is: solid UPE resin 40g is milled to 80 ~ 100 order powder in mortar for subsequent use; AESO60g is placed in after flask heats 5min under 80 DEG C of oil baths, is stirred to after it dissolves completely and shifts out oil bath rapidly after slowly adding solid UPE toner; Thing to be mixed adds initiator 5g after being cooled to room temperature again, after being uniformly mixed 2min, namely obtains improved plant oil base UPE resin mixture liquor; The UPE resin adopted is O-phthalic acid type UPE resin; Initiator is TBPB.
Preparation method: bamboo fiber is through shredding and after being cut into the fibrefelt of 20cm × 20cm specification, taking out, wrap with plastic sealing bag, be cooled to room temperature for subsequent use at being placed in 100 ~ 105 DEG C after being dried to over dry from baking oven; The bamboo fiber felt of 5 ~ 9 is arranged into fibre mat by same direction is superimposed, two surfaces of improved plant oil base UPE resin mixture liquor even application in fibre mat, then to move in punching block and to cold pressing 5min with the pressure of 3.24MPa at 50 DEG C, make resin penetration enter in fibre mat; Then thermocompressor is warming up to 160 DEG C of hot pressing 40min under 3.24MPa pressure; Hot pressing completes the heat insulation pressurize 60min of rear mold, and makes it to naturally cool to room temperature.
In described preparation process, the amount ratio of solid UPE resin and modified vegetable oil is 4:6 according to mass ratio; The amount ratio 1: 1 of bamboo fiber and improved plant oil base UPE resin mixture liquor; The amount of initiator is 5% of improved plant oil base UPE resin mixture liquor quality.
Embodiment 3
Raw material: bamboo fiber (mean length 22.81mm, width average 150 μm) is provided by Fujian Haibosi Chmeical Technology Co., Ltd.; Solid unsaturated polyester (UPE) resin is O-phthalic acid type unsaturated polyester resin (model: PG-ISOPlastic2, the monomethyl ether containing 4000ppm-Resorcinol stopper), purchased from American AshlandChemical company; Acrylated epoxidized soybean oil (AESO) purchased from American Sigma-Aldrich company; Initiator is peroxidized t-butyl perbenzoate (TBPB), purchased from American Sigma-Aldrich company.
The plant oil based UPE matrix material of bamboo fiber enhancing modified:
Improved plant oil base UPE resin mixture liquor is obtained than blended solid UPE resin, modified vegetable oil and initiator by certain quality.Bamboo fiber and improved plant oil base UPE resin mixture liquor are obtained the plant oil based UPE resin composite materials of bamboo fiber enhancing modified by hot-forming.Modified vegetable oil is AESO, and Blending Processes is: solid UPE resin 50g is milled to 80 ~ 100 order powder in mortar for subsequent use; AESO50g is placed in after flask heats 5min under 80 DEG C of oil baths, is stirred to after it dissolves completely and shifts out oil bath rapidly after slowly adding solid UPE toner; Thing to be mixed adds initiator 5g after being cooled to room temperature again, after being uniformly mixed 2min, namely obtains improved plant oil base UPE resin mixture liquor; The UPE resin adopted is O-phthalic acid type UPE resin; Initiator is TBPB.
Preparation method: bamboo fiber is through cotton machine shredding and after being cut into the fibrefelt of 20cm × 20cm specification, taking out, wrap with plastic sealing bag, be cooled to room temperature for subsequent use at being placed in 100 ~ 105 DEG C after being dried to over dry from baking oven; The bamboo fiber felt of 5 ~ 9 is arranged into fibre mat by same direction is superimposed, two surfaces of improved plant oil base UPE resin mixture liquor even application in fibre mat, then to move in punching block and to cold pressing 5min with the pressure of 3.24MPa at 50 DEG C, make resin penetration enter in fibre mat; Then thermocompressor is warming up to 160 DEG C of hot pressing 40min under 3.24MPa pressure; Hot pressing completes the heat insulation pressurize 60min of rear mold, and makes it to naturally cool to room temperature.
In described preparation process, the amount ratio of solid UPE resin and modified vegetable oil is 5:5 according to mass ratio; The amount ratio 1: 1 of bamboo fiber and improved plant oil base UPE resin mixture liquor; The amount of initiator is 5% of improved plant oil base UPE resin mixture liquor quality.
Composite panel Mechanics Performance Testing:
Composite panel makes dumbbell shape sample (specification: long 80mm, the wide 15mm in two ends, middle wide 10mm, gauge length 50mm, thickness 3.0mm) to test tensile property; The test sample of bending property is strip (specification: 60mm × 12.7mm × 3.0mm); The test sample of shock strength is strip (specification: 80mm × 10mm × 3.0mm).Tensile strength test is carried out according to ASTMD3039-08 standard; Flexural strength and modulus are tested and are carried out according to ASTMD790-10 standard; Shock strength test is according to GB/T1043-93.Tensile property and bending property test complete on microcomputer controlled electronic universal tester, and shock strength test completes on balance weight impact testing machine.
The tensile strength of matrix material
Known by Fig. 1, employing 70%AESO is that the matrix material tensile strength (68.0MPa) of UPE solvent is suitable with 50%ST matrix material tensile strength (68.9MPa); Adopt 60%AESO, 50%AESO, 40%ST and 30%ST be the matrix material tensile strength of UPE solvent without significant difference, be respectively 79.9MPa, 88.5MPa, 79.7MPa and 82.1MPa.
The bending property of matrix material
Known by Fig. 2, the flexural strength (118.2MPa) of 70%AESO matrix material is suitable with 50%ST matrix material flexural strength (120.1MPa); Along with the reduction of AESO consumption, the flexural strength of matrix material significantly increases, and compares with 70%AESO matrix material, AESO consumption be 60% and 50% matrix material flexural strength (139.1MPa and 154.1MPa) improve 17.6% and 30.4% respectively; The flexural strength of 60%AESO matrix material and the flexural strength (131.0MPa and 140.2MPa) of 40%ST and 30%ST matrix material are without significant difference; The flexural strength of 50%AESO matrix material is the highest.
The modulus in flexure of matrix material
Known by Fig. 2, along with the reduction of ASEO consumption, the modulus in flexure of matrix material significantly increases, and compares with the modulus in flexure (6154MPa) of 70%AESO matrix material, AESO consumption be 60% and 50% matrix material modulus in flexure (7313MPa and 7925MPa) improve 18.9% and 28.8% respectively; The modulus in flexure of 60%AESO and 50%AESO matrix material is suitable, with 50%ST, 40%ST and 30%ST matrix material (7258MPa, 7322MPa and 8070MPa) without significant difference.
The shock strength of matrix material
Known by Fig. 3, the shock strength (22.0KJ/m of 70%AESO matrix material
2) and 60%AESO composite impact intensity (22.7KJ/m
2) quite; The shock strength of 70%AESO and 60%AESO matrix material is significantly higher than the shock strength (18.5KJ/m of 50%AESO, 50%ST, 40%ST and 30%ST matrix material
2, 18.6KJ/m
2, 19.5KJ/m
2and 15.8KJ/m
2).
The foregoing is only preferred embodiment of the present invention, all equalizations done according to the present patent application the scope of the claims change and modify, and all should belong to covering scope of the present invention.
Claims (3)
1. the plant oil based unsaturated polyester composite of bamboo fiber enhancing modified, is characterized in that: the mass fraction of the feed composition of described matrix material is: bamboo fiber 80 ~ 100 parts, improved plant oil base unsaturated polyester resin 80 ~ 100 parts;
Described improved plant oil base unsaturated polyester resin adopts acrylated epoxidized soybean oil and solid-stately to obtain without vinylbenzene unsaturated polyester resin is blended;
The mass fraction of the feed composition of described improved plant oil base unsaturated polyester resin is: solid unsaturated polyester resin 30 ~ 50 parts, modified vegetable oil 50 ~ 70 parts, initiator 3 ~ 7 parts; Described solid unsaturated polyester resin is not containing cinnamic O-phthalic acid type unsaturated polyester resin; Described modified vegetable oil is acrylated epoxidized soybean oil; Described initiator is peroxidized t-butyl perbenzoate.
2. the plant oil based unsaturated polyester composite of bamboo fiber enhancing modified according to claim 1, it is characterized in that: its preparation method is by the upper and lower surface of improved plant oil base unsaturated polyester resin even application at bamboo fiber slab, obtain the plant oil based unsaturated polyester composite of bamboo fiber enhancing modified by manual compression molding of mating formation.
3. the plant oil based unsaturated polyester composite of bamboo fiber enhancing modified according to claim 2, is characterized in that: concrete steps are as follows:
(1) bamboo fiber shredding after being cut into the fibrefelt of 20cm × 20cm specification, taking out from baking oven after being dried to over dry at being placed in 100 ~ 105 DEG C, wrap with plastic sealing bag, be cooled to room temperature for subsequent use;
(2) solid unsaturated polyester resin 30 ~ 50 parts is milled to 80 ~ 100 order powder in mortar for subsequent use; Modified vegetable oil 50 ~ 70 parts is placed in after flask heats 5min under 80 DEG C of oil baths, is stirred to it and dissolves completely, then shift out oil bath rapidly after slowly adding solid unsaturated polyester resin powder; Thing to be mixed adds initiator 3 ~ 7 parts again after being cooled to room temperature, after stirring 2min, obtain improved plant oil base unsaturated polyester resin;
(3) the bamboo fiber felt of 5 ~ 9 steps (1) is arranged into fibre mat by same direction is superimposed, two surfaces of the rapid even application of improved plant oil base unsaturated polyester resin of step (2) in fibre mat, then to move in punching block and to cold pressing 3 ~ 8min with the pressure of 3 ~ 5MPa at 50 DEG C, make resin penetration enter in fibre mat; Then thermocompressor is warming up to 150 ~ 170 DEG C of hot pressing 20 ~ 40min under 3 ~ 5MPa pressure; Hot pressing completes the heat insulation pressurize 60 ~ 120min of rear mold, and makes it to naturally cool to room temperature.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410477527.3A CN104212142B (en) | 2014-09-18 | 2014-09-18 | The plant oil based unsaturated polyester composite of a kind of bamboo fiber enhancing modified |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410477527.3A CN104212142B (en) | 2014-09-18 | 2014-09-18 | The plant oil based unsaturated polyester composite of a kind of bamboo fiber enhancing modified |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104212142A CN104212142A (en) | 2014-12-17 |
| CN104212142B true CN104212142B (en) | 2016-04-06 |
Family
ID=52094068
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410477527.3A Active CN104212142B (en) | 2014-09-18 | 2014-09-18 | The plant oil based unsaturated polyester composite of a kind of bamboo fiber enhancing modified |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104212142B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104448793B (en) * | 2014-12-30 | 2017-01-11 | 福建农林大学 | Plant fiber reinforced modified soy-based resin composite material |
| CN105602268B (en) * | 2016-01-21 | 2018-01-12 | 福建农林大学 | A kind of string strengthens bio-based thermoset ting resin composite |
| EP3464428B1 (en) * | 2016-05-24 | 2020-10-14 | Green Composites B.V. | Natural fibre-reinforced composite material |
| CN110423447A (en) * | 2019-08-19 | 2019-11-08 | 浙江衡昶科技有限公司 | A kind of preparation method by modified natural plant fiber, bio-based materials strengthening and toughening unsaturated polyester resin |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101760034B (en) * | 2010-01-07 | 2011-11-30 | 福建农林大学 | Modified bamboo fiber composite material and preparation method thereof |
| CN103497495B (en) * | 2013-10-08 | 2015-11-18 | 福建农林大学 | A kind of plasma modification bamboo fiber strengthens unsaturated polyester composite |
-
2014
- 2014-09-18 CN CN201410477527.3A patent/CN104212142B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN104212142A (en) | 2014-12-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104212142B (en) | The plant oil based unsaturated polyester composite of a kind of bamboo fiber enhancing modified | |
| CN104448846B (en) | Plant fiber reinforced soy-based resin composite material and preparation method thereof | |
| CN104448793B (en) | Plant fiber reinforced modified soy-based resin composite material | |
| CN104045986B (en) | Unsaturated polyester resin composite material for furniture and preparation method thereof | |
| CN102702708B (en) | Modified hemp-fiber reinforced unsaturated polyester composite material | |
| CN101942207A (en) | Wood powder-polyvinyl chloride compound material and preparation method thereof | |
| CN103232664B (en) | Acrylic solid plate with characteristics of fire retardation, high strength and high toughness, and preparation method thereof | |
| CN108395148A (en) | A kind of resin based artificial stone decorative panel | |
| CN101418101B (en) | Polypropylene wood-plastic slab and preparation method thereof | |
| CN111607244B (en) | Natural polyphenol cross-linked palm oil-based resin-based bamboo fiber reinforced composite material and preparation method thereof | |
| CN102408530B (en) | Modified chemical bamboo pulp fiber composite material and preparation method thereof | |
| CN111533843B (en) | High-performance bio-based resin and preparation method and application thereof | |
| CN104262921B (en) | A kind of bamboo fiber strengthens without styrene unsaturated polyester composite and preparation thereof | |
| CN104786314B (en) | Soybean oil based resin/fibrous composite that a kind of acrylic acid is isocyanate-crosslinked | |
| CN104628966A (en) | Plant fiber reinforced environment-friendly unsaturated polyester composite material | |
| CN103113734B (en) | Toughened hemp fiber/unsaturated polyester composite material and preparation method thereof | |
| CN105602268B (en) | A kind of string strengthens bio-based thermoset ting resin composite | |
| CN106243346A (en) | Fiber reinforcement MC nylon composite materials and forming method thereof | |
| CN104530738B (en) | PP/ABS wood-plastic composite plate and manufacturing method thereof | |
| CN100535035C (en) | Composite material of fiber enganced latex of polymer and preparation method thereof | |
| CN103980647B (en) | HIPS/ABS blending and modifying composite and preparation method thereof | |
| CN108192217A (en) | A kind of fiber reinforced thermolplastic molding septic tank and its production method | |
| CN105778269A (en) | Fiber reinforced lignin/polypropylene composite material | |
| CN109354834B (en) | PET waste fiber/bamboo fiber reinforced styrene-free soybean oil-based resin composite material | |
| CN104479079A (en) | Unsaturated polyester and fiber reinforced composite material thereof based on environment-friendly reactive solvent |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |