CN109233316A - A kind of preparation method of high-intensity wood plastic composite foam material - Google Patents
A kind of preparation method of high-intensity wood plastic composite foam material Download PDFInfo
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- CN109233316A CN109233316A CN201811098192.9A CN201811098192A CN109233316A CN 109233316 A CN109233316 A CN 109233316A CN 201811098192 A CN201811098192 A CN 201811098192A CN 109233316 A CN109233316 A CN 109233316A
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- 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
- C08J9/06—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 chemical blowing agent
- C08J9/10—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 chemical blowing agent developing nitrogen, the blowing agent being a compound containing a nitrogen-to-nitrogen bond
- C08J9/102—Azo-compounds
- C08J9/103—Azodicarbonamide
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- 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
- C08J9/0014—Use of organic additives
- C08J9/0047—Use of organic additives containing boron
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- 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
- C08J9/0061—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof characterized by the use of several polymeric components
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- 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
- C08J9/0066—Use of inorganic compounding ingredients
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- 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
- C08J9/0066—Use of inorganic compounding ingredients
- C08J9/0071—Nanosized fillers, i.e. having at least one dimension below 100 nanometers
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- 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
- C08J2203/04—N2 releasing, ex azodicarbonamide or nitroso compound
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- 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
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- 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
- C08J2423/10—Homopolymers or copolymers of propene
- C08J2423/12—Polypropene
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- 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
- C08J2497/00—Characterised by the use of lignin-containing materials
- C08J2497/02—Lignocellulosic material, e.g. wood, straw or bagasse
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/34—Silicon-containing compounds
- C08K3/36—Silica
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/55—Boron-containing compounds
Abstract
The present invention discloses a kind of preparation method of high-intensity wood plastic composite foam material, including following operating procedure: (1) by wood powder using after the modification of 3- aminopropyl trimethoxysilane, centrifugation obtains silane-modified wood powder；(2) after silane-modified wood powder and generated in-situ silica solution being carried out polycondensation reaction, enhancing wood powder is obtained；(3) nano-ITO is supported on calcium-base bentonite, obtains blowing agent activators；(4) wood powder, PP resin, AC foaming agent, blowing agent activators, enhancing wood powder, butyl borate are added to two-roll mill, after mixing process, carry out moulded from foam in addition to hot press, high-intensity wood plastic composite foam material is obtained after discharge.High-intensity wood plastic composite foam material produced by the present invention, long service life, be not afraid of damage by worms, be ageing-resistant, is corrosion-resistant, water imbibition it is small, will not hygroscopic deformation, can reuse and recycling and reusing, belong to green material, especially in the lower situation of density, still there is excellent mechanical property.
Description
Technical field
The invention belongs to wood plastic composite technical fields, and in particular to a kind of system of high-intensity wood plastic composite foam material
Preparation Method.
Background technique
Wood plastic composite is with sawdust, sawdust, bamboo scraps, rice husk, wheat straw, soybean skin, peanut shell, bagasse, cotton stalk
Equal low values biomass fiber is main material, a kind of composite material synthesized with plastics.It is provided simultaneously with plant fiber and plastics
Feature performance benefit, applied widely, can almost cover all logs, plastics and other similar composite materials uses field, together
When also solve the problems, such as the regeneration of plastics, wood industry waste resource.Because Wood plastic composite be by wood fibre and
Plastics are combined, therefore it has both the feature performance benefit of timber and plastics, while overcoming some intrinsic of timber and plastics again
Disadvantage, such as overcome the poor dimensional stability of timber, easily damage by worms, perishable and plastics property easy to aging etc..But wood moulding is multiple
Condensation material is subject to certain restrictions at present but because density is higher in the application of the packagings such as heat-insulated, damping, building field.Existing skill
In art, although the density of wood plastic composite is reduced using foaming technique, foaming treated wood plastic composite
Mechanical property need further to be promoted.
Summary of the invention
In order to solve the above technical problem, the present invention provides a kind of preparation methods of high-intensity wood plastic composite foam material.
The present invention is achieved by the following technical solutions.
A kind of preparation method of high-intensity wood plastic composite foam material, including following operating procedure:
(1) wood powder is added in the dehydrated alcohol weighed to 2-3 times of its weight, is then added wood powder quality 35-55%'s thereto again
3- aminopropyl trimethoxysilane, after immersion treatment 4-5 hours, centrifugation obtains silane-modified wood powder；
(2) by weight, by 70-80 parts of silane-modified wood powders, 42-50 parts of ethyl orthosilicates, 110-130 parts of dehydrated alcohols,
0.4-0.8 parts of citric acids after mixing, after impregnation 4-6 days, take out precipitating in room temperature environment, at ageing by centrifugation
Reason is after 1-2 days, after drying process, obtains enhancing wood powder；
(3) nano-ITO is added in deionized water, after ultrasonic disperse processing, 2-4 times of nano-ITO weight heavy is added thereto
Calcium-base bentonite obtains blowing agent activators after impregnation 3-5 hours；
(4) by weight, 100-120 parts of wood powders, 11-15 parts of PP resins, 2-4 parts of AC foaming agents, 0.3-0.6 parts of foaming are lived
Agent, 14-18 parts of enhancing wood powders, 2-4 parts of butyl borates are added to two-roll mill, after mixing process, are added to hot pressing
Moulded from foam is carried out on machine, and high-intensity wood plastic composite foam material is obtained after discharge.
Specifically, in above-mentioned steps (2), when drying process, dry temperature is 75-80 DEG C, and the time of drying process is
3-4 hours.
Specifically, in above-mentioned steps (3), nano-ITO is indium oxide and tin oxide is 9:1 according to mass ratio ratio system
At wherein the Average Particle Diameters of nano-ITO are 30nm.
Specifically, in above-mentioned steps (3), when ultrasonic treatment, the frequency of ultrasonic wave is 35-40kHz, the time of ultrasonic treatment
It is 2-3 hours.
Specifically, in above-mentioned steps (4), when mixing process, two roll temperatures are 165-170 DEG C, mixing time 8-
12min。
Specifically, in above-mentioned steps (4), when hot-pressing processing, the pressure of hot press is 12-15MPa, temperature 160-170
DEG C, the time of moulded from foam is 12-16min.
From the above technical scheme, it can be seen that the beneficial effects of the present invention are:
High-intensity wood plastic composite foam material produced by the present invention, long service life are not afraid of and damage by worms, is ageing-resistant, is corrosion-resistant, absorbing water
Property it is small, will not hygroscopic deformation, can reuse and recycling and reusing, belong to green material, especially in the lower situation of density,
Still there is excellent mechanical property.In step (1), by wood powder after 3- aminopropyl trimethoxysilane modification,
A large amount of active group is contained on surface, is easy to solgel reaction and carries out on its surface；In step (2), teos hydrolysis
At silica solution mSiO2.H2O, surface are covered with a large amount of silicon oxygen alcohol radical-SiOH and hydroxyl-OH, thus silica solution can with change
Property wood powder inside activity hydroxy and the active amino on its surface polycondensation reaction occurs, form complicated, stable structure crosslinking
Body, density is lower, but can effectively promote the stability of wood plastic composite mechanical property；In step (3), nano-ITO can
The level of residue of AC foaming agent is effectively reduced, gas release is promoted, the dosage of AC foaming agent is reduced, nano-ITO is supported on sodium base
After on bentonite, can effectively avoiding nano-ITO, there is a phenomenon where be precipitated during mixing；Butyl borate can be effective
Promote the bond strength between wood powder and PP resin.
Specific embodiment
The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.Reality used in the examples
The condition of applying can be for further adjustments according to the condition of producer, and unaccounted implementation condition is usually conventional laboratory conditions.
Embodiment 1
A kind of preparation method of high-intensity wood plastic composite foam material, including following operating procedure:
(1) wood powder is added into 2 times of heavy dehydrated alcohols of its weight, the 3- ammonia of wood powder quality 35% is then added thereto again
Propyl trimethoxy silicane, after immersion treatment 4 hours, centrifugation obtains silane-modified wood powder；
(2) by weight, by 70 parts of silane-modified wood powders, 42 parts of ethyl orthosilicates, 110 parts of dehydrated alcohols, 0.4 part of citric acid
After mixing, after impregnation 4 days, centrifugation takes out precipitating in room temperature environment, after ripening 1 day, is dried
Afterwards, enhancing wood powder is obtained；
(3) nano-ITO is added in deionized water, after ultrasonic disperse processing, 2 times of heavy calcium of nano-ITO weight is added thereto
Base bentonite obtains blowing agent activators after impregnation 3 hours；
(4) by weight, by 100 parts of wood powders, 11 parts of PP resins, 2 parts of AC foaming agents, 0.3 part of blowing agent activators, 14 parts of enhancings
Wood powder, 2 parts of butyl borates are added to two-roll mill, after mixing process, carry out moulded from foam in addition to hot press, release
High-intensity wood plastic composite foam material is obtained after pressure.
Specifically, in above-mentioned steps (2), when drying process, dry temperature is 75 DEG C, and the time of drying process is 3 small
When.
Specifically, in above-mentioned steps (3), nano-ITO is indium oxide and tin oxide is 9:1 according to mass ratio ratio system
At wherein the Average Particle Diameters of nano-ITO are 30nm.
Specifically, in above-mentioned steps (3), when ultrasonic treatment, the frequency of ultrasonic wave is 35kHz, and the time of ultrasonic treatment is 2
Hour.
Specifically, in above-mentioned steps (4), when mixing process, two roll temperatures are 165 DEG C, mixing time 8min.
Specifically, in above-mentioned steps (4), when hot-pressing processing, the pressure of hot press is 12MPa, and temperature is 160 DEG C, molding
The time of foaming is 12min.
Embodiment 2
A kind of preparation method of high-intensity wood plastic composite foam material, including following operating procedure:
(1) wood powder is added into 2.5 times of heavy dehydrated alcohols of its weight, the 3- of wood powder quality 45% is then added thereto again
Aminopropyl trimethoxysilane, after immersion treatment 4.5 hours, centrifugation obtains silane-modified wood powder；
(2) by weight, by 75 parts of silane-modified wood powders, 46 parts of ethyl orthosilicates, 120 parts of dehydrated alcohols, 0.6 part of citric acid
After mixing, after impregnation 5 days, centrifugation takes out precipitating in room temperature environment, after ripening 1 day, is dried
Afterwards, enhancing wood powder is obtained；
(3) nano-ITO is added in deionized water, after ultrasonic disperse processing, 3 times of heavy calcium of nano-ITO weight is added thereto
Base bentonite obtains blowing agent activators after impregnation 4 hours；
(4) by weight, by 110 parts of wood powders, 13 parts of PP resins, 3 parts of AC foaming agents, 0.5 part of blowing agent activators, 16 parts of enhancings
Wood powder, 3 parts of butyl borates are added to two-roll mill, after mixing process, carry out moulded from foam in addition to hot press, release
High-intensity wood plastic composite foam material is obtained after pressure.
Specifically, in above-mentioned steps (2), when drying process, dry temperature is 78 DEG C, and the time of drying process is 3.5
Hour.
Specifically, in above-mentioned steps (3), nano-ITO is indium oxide and tin oxide is 9:1 according to mass ratio ratio system
At wherein the Average Particle Diameters of nano-ITO are 30nm.
Specifically, in above-mentioned steps (3), when ultrasonic treatment, the frequency of ultrasonic wave is 38kHz, and the time of ultrasonic treatment is
2.5 hour.
Specifically, in above-mentioned steps (4), when mixing process, two roll temperatures are 168 DEG C, mixing time 10min.
Specifically, in above-mentioned steps (4), when hot-pressing processing, the pressure of hot press is 13MPa, and temperature is 165 DEG C, molding
The time of foaming is 14min.
Embodiment 3
A kind of preparation method of high-intensity wood plastic composite foam material, including following operating procedure:
(1) wood powder is added into 3 times of heavy dehydrated alcohols of its weight, the 3- ammonia of wood powder quality 55% is then added thereto again
Propyl trimethoxy silicane, after immersion treatment 5 hours, centrifugation obtains silane-modified wood powder；
(2) by weight, by 80 parts of silane-modified wood powders, 50 parts of ethyl orthosilicates, 130 parts of dehydrated alcohols, 0.8 part of citric acid
After mixing, after impregnation 6 days, centrifugation takes out precipitating in room temperature environment, after ripening 2 days, is dried
Afterwards, enhancing wood powder is obtained；
(3) nano-ITO is added in deionized water, after ultrasonic disperse processing, 4 times of heavy calcium of nano-ITO weight is added thereto
Base bentonite obtains blowing agent activators after impregnation 5 hours；
(4) by weight, by 120 parts of wood powders, 15 parts of PP resins, 4 parts of AC foaming agents, 0.6 part of blowing agent activators, 18 parts of enhancings
Wood powder, 4 parts of butyl borates are added to two-roll mill, after mixing process, carry out moulded from foam in addition to hot press, release
High-intensity wood plastic composite foam material is obtained after pressure.
Specifically, in above-mentioned steps (2), when drying process, dry temperature is 80 DEG C, and the time of drying process is 4 small
When.
Specifically, in above-mentioned steps (3), nano-ITO is indium oxide and tin oxide is 9:1 according to mass ratio ratio system
At wherein the Average Particle Diameters of nano-ITO are 30nm.
Specifically, in above-mentioned steps (3), when ultrasonic treatment, the frequency of ultrasonic wave is 40kHz, and the time of ultrasonic treatment is 3
Hour.
Specifically, in above-mentioned steps (4), when mixing process, two roll temperatures are 170 DEG C, mixing time 12min.
Specifically, in above-mentioned steps (4), when hot-pressing processing, the pressure of hot press is 15MPa, and temperature is 170 DEG C, molding
The time of foaming is 16min.
Comparative example 1
In step (4), the wood powder that wood powder such as is substituted at the weight will be enhanced, remaining operating procedure is identical with embodiment 1.
Comparative example 2
In step (4), butyl borate is not added, remaining operating procedure is identical with embodiment 1.
Wood plastics composite foamed material is made with the method for each embodiment and comparative example respectively, then tests its every mechanical property
Can, test result is as shown in table 1:
The mechanical property of 1 wood plastics composite foamed material of table
As shown in Table 1, wood plastics composite foamed material made from the present embodiment still has excellent power at lower densities
Performance is learned, the application range of wood plastics composite foamed material has greatly been widened.
Certainly, the above description is not a limitation of the present invention, and the present invention is also not limited to the example above, the art
Those of ordinary skill, within the essential scope of the present invention, variation, change, addition or the replacement made all should belong to the present invention
Protection scope.
Claims (6)
1. a kind of preparation method of high-intensity wood plastic composite foam material, which is characterized in that including following operating procedure:
(1) wood powder is added in the dehydrated alcohol weighed to 2-3 times of its weight, is then added wood powder quality 35-55%'s thereto again
3- aminopropyl trimethoxysilane, after immersion treatment 4-5 hours, centrifugation obtains silane-modified wood powder；
(2) by weight, by 70-80 parts of silane-modified wood powders, 42-50 parts of ethyl orthosilicates, 110-130 parts of dehydrated alcohols,
0.4-0.8 parts of citric acids after mixing, after impregnation 4-6 days, take out precipitating in room temperature environment, at ageing by centrifugation
Reason is after 1-2 days, after drying process, obtains enhancing wood powder；
(3) nano-ITO is added in deionized water, after ultrasonic disperse processing, 2-4 times of nano-ITO weight heavy is added thereto
Calcium-base bentonite obtains blowing agent activators after impregnation 3-5 hours；
(4) by weight, 100-120 parts of wood powders, 11-15 parts of PP resins, 2-4 parts of AC foaming agents, 0.3-0.6 parts of foaming are lived
Agent, 14-18 parts of enhancing wood powders, 2-4 parts of butyl borates are added to two-roll mill, after mixing process, are added to hot pressing
Moulded from foam is carried out on machine, and high-intensity wood plastic composite foam material is obtained after discharge.
2. a kind of preparation method of high-intensity wood plastic composite foam material according to claim 1, which is characterized in that above-mentioned
In step (2), when drying process, dry temperature is 75-80 DEG C, and the time of drying process is 3-4 hours.
3. a kind of preparation method of high-intensity wood plastic composite foam material according to claim 1, which is characterized in that above-mentioned
In step (3), nano-ITO is made of indium oxide and tin oxide according to mass ratio of the ratio of 9:1, and wherein nano-ITO is averaged
Particle size is 30nm.
4. a kind of preparation method of high-intensity wood plastic composite foam material according to claim 1, which is characterized in that above-mentioned
In step (3), when ultrasonic treatment, the frequency of ultrasonic wave is 35-40kHz, and the time of ultrasonic treatment is 2-3 hours.
5. a kind of preparation method of high-intensity wood plastic composite foam material according to claim 1, which is characterized in that above-mentioned
In step (4), when mixing process, two roll temperatures are 165-170 DEG C, mixing time 8-12min.
6. a kind of preparation method of high-intensity wood plastic composite foam material according to claim 1, which is characterized in that above-mentioned
In step (4), when hot-pressing processing, the pressure of hot press is 12-15MPa, and temperature is 160-170 DEG C, and the time of moulded from foam is
12-16min。
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| CN201811098192.9A CN109233316A (en) | 2018-09-20 | 2018-09-20 | A kind of preparation method of high-intensity wood plastic composite foam material |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811098192.9A CN109233316A (en) | 2018-09-20 | 2018-09-20 | A kind of preparation method of high-intensity wood plastic composite foam material |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102337037A (en) * | 2011-05-31 | 2012-02-01 | 深圳市科聚新材料有限公司 | Polystyrene (PP) furniture plastic-wood material filled and modified by wood flour and preparation method for PP furniture plastic-wood material |
| CN103087400A (en) * | 2011-10-27 | 2013-05-08 | 上海杰事杰新材料(集团)股份有限公司 | Wood-plastic composite material and preparation method thereof |
| CN104829942A (en) * | 2015-05-07 | 2015-08-12 | 中国科学院合肥物质科学研究院 | Preparation method of wood-plastic material coated with modified nano particle wood powder |
| CN106883509A (en) * | 2015-12-16 | 2017-06-23 | 赵守彬 | A kind of sol-gel modified Wood-plastic material of titanium and preparation method thereof |
-
2018
- 2018-09-20 CN CN201811098192.9A patent/CN109233316A/en not_active Withdrawn
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102337037A (en) * | 2011-05-31 | 2012-02-01 | 深圳市科聚新材料有限公司 | Polystyrene (PP) furniture plastic-wood material filled and modified by wood flour and preparation method for PP furniture plastic-wood material |
| CN103087400A (en) * | 2011-10-27 | 2013-05-08 | 上海杰事杰新材料(集团)股份有限公司 | Wood-plastic composite material and preparation method thereof |
| CN104829942A (en) * | 2015-05-07 | 2015-08-12 | 中国科学院合肥物质科学研究院 | Preparation method of wood-plastic material coated with modified nano particle wood powder |
| CN106883509A (en) * | 2015-12-16 | 2017-06-23 | 赵守彬 | A kind of sol-gel modified Wood-plastic material of titanium and preparation method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 曾人泉编著: "《塑料加工助剂》", 30 September 1997, 中国物资出版社 * |
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Application publication date: 20190118 |