CN106633987A - Method for strengthening light fiber composite material - Google Patents

Method for strengthening light fiber composite material Download PDF

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Publication number
CN106633987A
CN106633987A CN201611242905.5A CN201611242905A CN106633987A CN 106633987 A CN106633987 A CN 106633987A CN 201611242905 A CN201611242905 A CN 201611242905A CN 106633987 A CN106633987 A CN 106633987A
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blank
fiber
fibre composite
light fibre
intensifying method
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CN106633987B (en
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高黎
唐启恒
郭文静
王正
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Research Institute of Wood Industry of Chinese Academy of Forestry
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Research Institute of Wood Industry of Chinese Academy of Forestry
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    • 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
    • C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
    • C08J9/04—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent
    • C08J9/12—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a physical blowing agent
    • C08J9/14—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a physical blowing agent organic
    • C08J9/141—Hydrocarbons
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L1/00—Compositions of cellulose, modified cellulose or cellulose derivatives
    • C08L1/02—Cellulose; Modified cellulose
    • 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
    • C08J2203/00—Foams characterized by the expanding agent
    • C08J2203/14—Saturated hydrocarbons, e.g. butane; Unspecified hydrocarbons
    • 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
    • C08J2301/00—Characterised by the use of cellulose, modified cellulose or cellulose derivatives
    • C08J2301/02—Cellulose; Modified cellulose
    • 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
    • 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
    • C08J2423/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
    • C08J2423/02—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
    • C08J2423/04—Homopolymers or copolymers of ethene
    • C08J2423/06—Polyethene
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2205/00—Polymer mixtures characterised by other features
    • C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2205/00—Polymer mixtures characterised by other features
    • C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2205/00—Polymer mixtures characterised by other features
    • C08L2205/14—Polymer mixtures characterised by other features containing polymeric additives characterised by shape
    • C08L2205/16—Fibres; Fibrils

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Dry Formation Of Fiberboard And The Like (AREA)

Abstract

The invention provides a method for strengthening a light fiber composite material. The method includes the steps that plant fiber is taken to be crushed and pretreated to obtain a plant fiber raw material; the plant fiber raw material is assembled and hardened by heating to prepare a semifinished product, wherein in the assembling process, blended fiber obtained after gluing is quantitatively and uniformly laid in a forming frame, or the plant fiber is mixed with the blended fiber to be formed through air spreading needling; the semifinished product is soaked with a foaming preparation and then subjected to high-temperature setting and surface reprocessing, and a flat plate or the heterotypic composite material is prepared, wherein the foaming preparation is quantitatively prepared according to production design requirements, in the soaking process, the foaming preparation penetrates into the semifinished product, the foaming preparation at least includes foamable phenolic resin, a foaming agent and a surfactant, and one or more of a curing agent, a modifier and a flame retardant can be added in the foaming preparation. The method can be used for making a high-strength artificial light composite board, the prepared fiber composite board is low in density and good in mechanical property.

Description

A kind of intensifying method of light fibre composite
Technical field
The present invention relates to a kind of artificial board manufacturing technology field, espespecially a kind of reinforcing side of light fibre composite Method.
Background technology
Further mitigate under the premise of composite physical and mechanical property is ensured weight be industrial quarters to material property and into One of this important need.Especially operation industry is taken advantage of in automobile, high ferro etc., light weight, comfortable and environmental protection are the main trends of development.Mesh Front utilization glass fibre knits the standby GMT of felt (glass mat reinforced thermoplastics) material with synthetic fibers Material is most commonly seen in automotive trim sector application, the enhancing with environmental consciousness and the consideration to cost, in recent years using day Right string substitutes glass fibre, and lot of documents and patent are had both at home and abroad to be strengthened flaxen fiber the research of composite and answer With being reported, the ratio of flaxen fiber and synthetic fibers is about in (40～65):(35～60), and according to different purposes need Ask, be to meet certain mechanical property, composite products density is generally more than 0.8g/cm3, and it is less than 0.5g/cm3Product Generally only make ornament materials.Other are if wood-fibred, bamboo fibre, cotton fiber, crop branch fiber etc. are with compared with high length-diameter ratio Natural, environmental protection vegetable fiber, is also widely utilized in on-woven felt is standby.
Meanwhile, the conventional wood-based fibre plate of furniture, finishing, its physical and mechanical property has extremely close pass with its density System.When product density is less than 0.4g/cm3When, its performance can only also meet decoration performance requirement.
Foaming is an important means for reducing density of material.The research for preparing light material using polymer foaming has The ceiling substrate material majority of longer history, such as domestic automobile interior trim manufacturer production is phenolic resin felt, EVA (second Alkene-acetate ethylene copolymer) and polyurethane foam material, polyurethane foam material etc., though these materials have sound-absorbing, it is heat-insulated and The good characteristics such as damping, but larger external force generally can not be born.Meet strength demand simultaneously density is reduced, be wood-based plate Industry even composite industry is both needed to the important technology difficult problem for breaking through.
The content of the invention
The main object of the present invention is to provide a kind of intensifying method of light fibre composite, is prepared using this method Fibrous composite has relatively low density and good mechanical property.
For achieving the above object, the present invention takes following design：
A kind of intensifying method of light fibre composite, its method and step is as follows：
1) string particle is taken, and is pre-processed, obtain plant fiber material；
2) blank is made in Jing assemblies and heat hardening, wherein, during assembly, the composite fibre after applying glue is entered in shaping frame Row quantitative and even is mated formation；Or string and synthetic fibers mixing are molded using airflow pavement acupuncture；
3) again blank carried out into the process treatment process of impregnation of expandable preparation, high-temperature shaping and re-surface, is made Flat board or special-shaped composite；Wherein, described impregnation of expandable preparation be quantitatively allotted according to product design requirement it is expandable Preparation, makes effervescent preparations infiltrate through inside blank during dipping；The expandable preparation at least includes expandable phenolic resin, foaming Agent and surfactant, can also add one or more in curing agent, modifying agent and fire retardant.
In the intensifying method of the light fibre composite, described expandable phenolic resin, foaming agent, surface-active The adding proportion of agent, curing agent, modifying agent and fire retardant is 100:(1～10):(1～5):(0～3):(0～20):(0～ 15)。
In the intensifying method of the light fibre composite, described foaming agent is pentane, n-hexane and/or foaming Agent H；Described surfactant is Tween-80, neopelex and/or siloxanes；Described curing agent is to first Benzene sulfonic acid, xylene monosulfonic acid and/or oxalic acid；Described modifying agent be isocyanates, polyvinyl acetate, polyvinyl alcohol and/or Polyethylene glycol；Described fire retardant is organic or inorganic phosphorus-nitrogen containing flame retardant.
The intensifying method step 2 of the light fibre composite) in, the plant fiber material is applied in whipping process Plus adhesive, specially：Spray uniform to plant fibre surface plus modified phenolic adhesive, melamine modified urea-formaldehyde glue in whipping process Stick, polyvinyl acetate or polyvinyl alcohol liquid adhesive, applied amount 8～20%.
The intensifying method step 2 of the light fibre composite) in, polypropylene is fine in the plant fiber material Dimension, polyethylene fibre or acid fiber by polylactic, mixed proportion is (70～90):(10～30).
In the intensifying method of the light fibre composite, also at least there is one of following feature：
1. methods described step 2) in heat hardening process, be by the loose blank of the fiber after mating formation, using thickness-determining gauge, Fixture or pressing plate are controlling loose blank until reaching density for 0.1～0.3g/cm3Prefabrication, be re-fed into baking oven or hot pressing Further process in machine firing equipment, heating-up temperature is 80～170 DEG C, the heat time is 1～5min/mm；
2. methods described step 3) in high-temperature shaping process be：Impregnated stock is quantitatively mated formation in concora crush backing plate or abnormal shape In mould, the pressure of 0.3～1.0MPa is applied on mould, slab is pressed into into 0.15～0.65g/cm of density3Semi-finished product； Wherein, described high-temperature temperature is 80～180 DEG C, and shaping time is 1～10min/mm.
In the intensifying method of the light fibre composite, described string is at least fiber crops, timber, bamboo wood, cotton One kind in stalk and stalk fibre；The particle of string by pretreatment after be prepared into length for 5～50mm, a diameter of 0.05 ～2mm, moisture content are 2～6% fibre bundle form.
The intensifying method step 3 of the light fibre composite) in, blank impregnate when, by the blank at ambient pressure or By decompression and pressuring method, point upper and lower surface impregnation makes glue uniform in quantitative adhesive solvent by fashion of extrusion Dispersion.
In the intensifying method of the light fibre composite, described re-surface is that semi-finished product are carried out at surface Veneer processing is carried out after reason, surface lining is veneer, dipping paper, plastic foil or textile cloth.
In the intensifying method of the light fibre composite, described pretreatment at least includes that softening and rub with the hands mill is processed, Or further dried and/or screening process.
The present invention is described in further details with reference to specific embodiment.
Embodiment 1
1) 90kg bamboo fibres and 10kg polyethylene fibres are weighed, shredding, combing, vertical will be carried out after the uniform mixing of this two kinds material Lateral cross lapping, then through upper and lower needle felting, density is obtained for 0.12g/cm3And thickness is the bamboo fibre/poly- second of 30mm Alkene fiber composite felt；The composite felt is put in 140 DEG C of hot presses be pressed into thickness be 20mm blank after it is standby；
2) modified phenolic adhesive and n-hexane, Tween-80 are pressed into quality 100:5:After 3 ratio mixed at high speed, 5% is added Polyisocyanates stirs, and blank normal pressure is impregnated in the adhesive solvent of same billet weight, and by fashion of extrusion glue is made Liquid is dispersed；Assembly is put into the moulding press that temperature is 140 DEG C～150 DEG C and carries out curing molding, and cutting is cooled down after taking-up, prepares Obtain light composite board.
The light fibre composite final densities that the present embodiment is obtained are 0.35g/cm3, MOR 16MPa, interior knot Close intensity 0.2MPa, 24 hours absorber thickness expansion rates<2%.
Embodiment 2
1) 90kg wood-fibreds and 10kg EVA emulsions are weighed, adds gauge water to reduce after viscosity, in glue mixer EVA emulsions Wood-fibred surface is uniformly sprayed at, is uniformly mated formation in shaping frame followed by deployment equipment, be pre-stressed to density 0.15g/cm3It is thick The soft paste of degree 30mm；Take out standby after the blank is dried 2 hours in 100 DEG C of baking ovens；
2) modified phenolic adhesive and n-hexane, Tween-80 press quality 100:6:After 5 ratio mixed at high speed, 5% water is added Property isocyanates stirs, during blank point upper and lower surface normal pressure to be impregnated into etc. the adhesive solvent of weight, by extruding side Formula makes glue dispersed；Assembly is put into the hot press that temperature is 120 DEG C～130 DEG C and carries out hot-press solidifying shaping, cold after taking-up But cutting, prepares light composite board.
Composite final densities 0.40g/cm that the present embodiment is obtained3, MOR 20MPa, internal bond strength 0.5MPa, 24 hours absorber thickness expansion rates<3%.
Embodiment 3
Raw material (kg) is weighed according to weight below：
1) fire-retardant wood-fibred 90kg, cyanurotriamide modified urea resin adhesive 10kg are weighed, adhesive is sprayed at into wood Mat formation after fiber surface, 120 DEG C of hot presses sizing blank density 0.20g/cm3；
2) modified phenolic adhesive and pentane, neopelex press quality 100:4:After 3 ratio mixed at high speed, then 5% water-based isocyanate and 6% trihydroxy methyl phosphine oxide is added to stir, blank point upper and lower surface impregnating by pressure is heavy to waiting In the adhesive solvent of amount；Assembly is put into the hot press that temperature is 130 DEG C～150 DEG C and carries out hot-press solidifying shaping.
Composite final densities 0.34g/cm that the present embodiment is obtained3, MOR 18MPa, internal bond strength 0.2 5MPa, 24 hours absorber thickness expansion rates<6%, oxygen index (OI) 32%.
Embodiment 4
1) 80kg wood-fibreds and 20kg polypropylene fibres are weighed, shredding, combing, vertical will be carried out after the uniform mixing of this two kinds material Lateral cross lapping, then through upper and lower needle felting, density is obtained for 0.15g/cm3And thickness is wood-fibred/poly- third of 20mm Alkene fiber composite felt；The composite felt is put in 170 DEG C of hot presses be pressed into thickness be 15mm blank after it is standby；
3) modified phenolic adhesive and n-hexane, Tween-80 are pressed into quality 100:8:After 2 ratio mixed at high speed, 2% is added Polyisocyanates stirs, and blank decompression is impregnated in the adhesive solvent of same billet weight, and by fashion of extrusion glue is made Liquid is dispersed；Assembly is put into the moulding press that temperature is 140 DEG C～150 DEG C and carries out curing molding, and cutting is cooled down after taking-up, prepares Obtain light composite board.
The light fibre composite final densities that the present embodiment is obtained are 0.40g/cm3, MOR 18MPa, interior knot Close intensity 0.3MPa, 24 hours absorber thickness expansion rates<2%.
Embodiment 5
1) weigh 90kg and reclaim flaxen fiber and 10kg polypropylene fibres, shredding, comb will be carried out after this two kinds material uniformly mixing Reason, vertically and transversely cross-linking lapping, then through upper and lower needle felting, density is obtained for 0.12g/cm3And thickness is fine for the fiber crops of 40mm Dimension/polypropylene fibre composite felt；The composite felt is put in 170 DEG C of hot presses be pressed into thickness be 35mm blank after it is standby；
3) modified phenolic adhesive and pentane, neopelex press quality 100:4:After 2 ratio mixed at high speed, then 4% water-based isocyanate and 6% trihydroxy methyl phosphine oxide is added to stir, by blank point upper and lower surface impregnating by pressure to 1.5 In the adhesive solvent of times weight；Assembly is put into the hot press that temperature is 130 DEG C～150 DEG C and carries out hot-press solidifying shaping.
The light fibre composite final densities that the present embodiment is obtained are 0.41g/cm3, absorber thickness expansion in 24 hours Rate<2%, 24 hours water absorption rates<2%, MOR>10MPa.
Embodiment 6
1) 92kg bamboo fibres and 8kg PVA (polyvinyl alcohol) solution are weighed, PVA solution is uniformly sprayed in glue mixer Wood-fibred surface, uniformly mats formation followed by deployment equipment in shaping frame, is pre-stressed to density 0.15g/cm3Thickness 40mm's is soft Base；Take out standby after the blank is dried into 3h in 110 DEG C of baking ovens；
2) modified phenolic adhesive and n-hexane, neopelex press quality 100:5:After 5 ratio mixed at high speed, then Add 6% water-based isocyanate to stir, the decompression of blank point upper and lower surface is impregnated into etc. in the adhesive solvent of weight, lead to Crossing plane fashion of extrusion makes glue dispersed；Assembly be put into the hot press that temperature is 130 DEG C～140 DEG C carry out hot-press solidifying into Type, cools down cutting after taking-up, prepare light composite board.
Composite final densities 0.30g/cm that the present embodiment is obtained3, MOR>12MPa, internal bond strength> 0.2MPa, 24 hours absorber thickness expansion rates<3%.
The various embodiments described above can in addition some changes without departing from the scope of the invention, therefore the explanation of the above include should Be considered as it is exemplary, and be not used to limit the present patent application patent protection domain.

Claims (9)

1. a kind of intensifying method of light fibre composite, it is characterised in that the method step is as follows：
1) string particle is taken, and is pre-processed, obtain plant fiber material；
2) blank is made in Jing assemblies and heat hardening, wherein, during assembly, the composite fibre after applying glue is carried out calmly in shaping frame Amount is uniformly mated formation；Or string and synthetic fibers mixing are molded using airflow pavement acupuncture；
3) again blank carried out into the process treatment process of impregnation of expandable preparation, high-temperature shaping and re-surface, makes flat board Or special-shaped composite；Wherein, described impregnation of expandable preparation is quantitatively to allot expandable preparation according to product design requirement, Effervescent preparations are made to infiltrate through inside blank during dipping；The expandable preparation at least include expandable phenolic resin, foaming agent and Surfactant, can also add one or more in curing agent, modifying agent and fire retardant.
2. the intensifying method of light fibre composite according to claim 1, it is characterised in that：Described expandable phenol The adding proportion of urea formaldehyde, foaming agent, surfactant, curing agent, modifying agent and fire retardant is 100:(1～10):(1～5): (0～3):(0～20):(0～15).
3. the intensifying method of light fibre composite according to claim 2, it is characterised in that：Described foaming agent is Pentane, n-hexane and/or blowing agent H；Described surfactant is Tween-80, neopelex and/or silica Alkane；Described curing agent is p-methyl benzenesulfonic acid, xylene monosulfonic acid and/or oxalic acid；Described modifying agent is isocyanates, poly-vinegar acid Vinyl acetate, polyvinyl alcohol and/or polyethylene glycol；Described fire retardant is organic or inorganic phosphorus-nitrogen containing flame retardant.
4. the intensifying method of light fibre composite according to claim 1, it is characterised in that methods described step 2) In, the plant fiber material applies adhesive in whipping process, specially：It is uniform to plant fibre surface in whipping process Spray plus modified phenolic adhesive, melamine modified urea-formaldehyde glue stick, polyvinyl acetate or polyvinyl alcohol liquid adhesive, applied amount 8～20%.
5. the intensifying method of light fibre composite according to claim 1, it is characterised in that methods described step 2) In, the plant fiber material applies adhesive in whipping process, specially：Mix poly- third in the plant fiber material Alkene fiber, polyethylene fibre or acid fiber by polylactic, mixed proportion is (70～90):(10～30).
6. the intensifying method of light fibre composite according to claim 1, it is characterised in that also at least have as follows One of feature：
1. methods described step 2) in heat hardening process, be by the loose blank of the fiber after mating formation, using thickness-determining gauge, fixture Or pressing plate is controlling loose blank until reaching density for 0.1～0.3g/cm3Prefabrication, be re-fed into baking oven or hot press add Further process in hot equipment, heating-up temperature is 80～170 DEG C, the heat time is 1～5min/mm；
2. methods described step 3) in high-temperature shaping process be：Impregnated stock is quantitatively mated formation in concora crush backing plate or xenotype mold It is interior, the pressure of 0.3～1.0MPa is applied on mould, slab is pressed into into 0.15～0.65g/cm of density3Semi-finished product；Its In, described high-temperature temperature is 80～180 DEG C, and shaping time is 1～10min/mm；
3. described string is at least the one kind in fiber crops, timber, bamboo wood, cotton stalk and stalk fibre；The particle of string The fibre bundle form that length is 5～50mm, a diameter of 0.05～2mm, moisture content is 2～6% is prepared into after pretreatment.
7. the intensifying method of light fibre composite according to claim 1, it is characterised in that methods described step 3) In, when blank impregnates, by the blank at ambient pressure or by decompression and pressuring method, point upper and lower surface impregnation is to quantitative glue In stick solution, make glue dispersed by fashion of extrusion.
8. the intensifying method of light fibre composite according to claim 1, it is characterised in that：Described surface adds again Work be semi-finished product are surface-treated after carry out veneer processing, surface lining is veneer, dipping paper, plastic foil or weaving cloth Material.
9. the intensifying method of light fibre composite according to claim 1, it is characterised in that：Described pretreatment is extremely It is few to include that softening and rub with the hands mill is processed, or further dried and/or screening process.
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CN108327015A (en) * 2018-04-23 2018-07-27 国际竹藤中心 A kind of preparation method of Bamboo veneer/fiber RTM molding sport slide plates
CN109082609A (en) * 2018-08-29 2018-12-25 苏州卓诚钛设备有限公司 A kind of light-weight metal gasket and its production technology
CN109648678A (en) * 2018-12-26 2019-04-19 东北林业大学 Wood-fibred-coir composite sound-absorbing material and preparation method thereof
CN109720052A (en) * 2019-02-27 2019-05-07 保定市宏腾科技有限公司 A kind of WGF composite board material producing technology
CN111805639A (en) * 2020-06-30 2020-10-23 江苏茂诚木业股份有限公司 Preparation method of high-stability two-layer composite solid wood floor
CN112812502A (en) * 2021-02-10 2021-05-18 上海东杰高分子材料有限公司 Basha wood-like light high-strength composite section and preparation method thereof

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Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108327015A (en) * 2018-04-23 2018-07-27 国际竹藤中心 A kind of preparation method of Bamboo veneer/fiber RTM molding sport slide plates
CN108327015B (en) * 2018-04-23 2023-11-07 国际竹藤中心 Preparation method of bamboo veneer/fiber RTM molding sports skateboard
CN109082609A (en) * 2018-08-29 2018-12-25 苏州卓诚钛设备有限公司 A kind of light-weight metal gasket and its production technology
CN109648678A (en) * 2018-12-26 2019-04-19 东北林业大学 Wood-fibred-coir composite sound-absorbing material and preparation method thereof
CN109648678B (en) * 2018-12-26 2022-03-22 东北林业大学 Wood fiber-coconut fiber composite sound absorption material and preparation method thereof
CN109720052A (en) * 2019-02-27 2019-05-07 保定市宏腾科技有限公司 A kind of WGF composite board material producing technology
CN111805639A (en) * 2020-06-30 2020-10-23 江苏茂诚木业股份有限公司 Preparation method of high-stability two-layer composite solid wood floor
CN112812502A (en) * 2021-02-10 2021-05-18 上海东杰高分子材料有限公司 Basha wood-like light high-strength composite section and preparation method thereof
CN112812502B (en) * 2021-02-10 2024-01-30 上海东杰高分子材料有限公司 Bassa-like light high-strength composite profile and preparation method thereof

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