CN113122015A - Modified plastic-wood composite material plate and preparation method thereof - Google Patents

Modified plastic-wood composite material plate and preparation method thereof Download PDF

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CN113122015A
CN113122015A CN202110418302.0A CN202110418302A CN113122015A CN 113122015 A CN113122015 A CN 113122015A CN 202110418302 A CN202110418302 A CN 202110418302A CN 113122015 A CN113122015 A CN 113122015A
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modified
plastic
parts
wood
wood composite
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陈吉林
陈竹豪
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Zhejiang Haoyun Plastic Bamboo And Wood Material Co ltd
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Zhejiang Haoyun Plastic Bamboo And Wood Material Co ltd
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    • 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
    • C—CHEMISTRY; METALLURGY
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    • C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
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    • C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
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    • C08J2397/00—Characterised by the use of lignin-containing materials
    • C08J2397/02—Lignocellulosic material, e.g. wood, straw or bagasse
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    • 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
    • C08J2423/26—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers modified by chemical after-treatment
    • C08J2423/28—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers modified by chemical after-treatment by reaction with halogens or halogen-containing compounds
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    • C08J2427/00—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Derivatives of such polymers
    • C08J2427/02—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Derivatives of such polymers not modified by chemical after-treatment
    • C08J2427/04—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Derivatives of such polymers not modified by chemical after-treatment containing chlorine atoms
    • C08J2427/06—Homopolymers or copolymers of vinyl chloride
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    • C08J2451/00—Characterised by the use of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Derivatives of such polymers
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    • C08J2451/00—Characterised by the use of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Derivatives of such polymers
    • C08J2451/06—Characterised by the use of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Derivatives of such polymers grafted on to homopolymers or copolymers of aliphatic hydrocarbons containing only one carbon-to-carbon double bond
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    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K13/00—Use of mixtures of ingredients not covered by one single of the preceding main groups, each of these compounds being essential
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    • C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
    • C08K3/24—Acids; Salts thereof
    • C08K3/26—Carbonates; Bicarbonates
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  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
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Abstract

The invention discloses a modified plastic-wood composite material plate and a preparation method thereof, wherein the modified plastic-wood composite material plate is prepared from the following raw materials in parts by weight: 100 parts of modified wood powder, 60 parts of polyvinyl chloride plastic particles, 10 parts of maleic anhydride grafted plastic particles, 8 parts of modified red mud, 5-9 parts of calcium carbonate powder, 3-5 parts of calcium stearate, 2-5 parts of chlorinated polyethylene, 0.5 part of foaming agent and 0.5 part of antioxidant. The invention has the advantages of reduced amount of plastic, environment friendliness, higher modulus, higher rigidity, creep resistance, water resistance, corrosion resistance and termite resistance, is not easy to crack and rot particularly in open air, has longer service life, higher static bending strength and other strength, and reduced water absorption thickness expansion.

Description

Modified plastic-wood composite material plate and preparation method thereof
Technical Field
The invention relates to the technical field of plate preparation, in particular to a modified plastic-wood composite plate and a preparation method thereof.
Background
The plastic-wood composite material is prepared by adding a small amount of chemical additives and fillers into plastic and wood fibers (or natural fibers such as rice hulls, wheat straws, corn stalks, peanut shells and the like) and processing the mixture by special mixing equipment. It has the main characteristics of plastics and woods, can replace plastics and woods in many occasions, it has higher intensity and hardness, difficult wearing and tearing, acid and alkali resistance, indeformable, do not contain formaldehyde, easily retrieve, can make various cross sectional shape and size, can produce different colours as required, characteristics such as long service life, can extensively be used as outdoor floor, swimming pool bordure, flower box, tree pool, hedge, garbage bin, sunshading board, bench, chair strip, back strip, leisure desktop, sign, publicity column, crossbeam, pier decking, waterborne passageway, handrail, guardrail, fence, cut off, pergola corridor, outdoor wayside pavilion, open-air platform, bathroom board, door and window frame cover, abatvoix, roof etc.. However, even then, the plastic-wood composite material has some obvious defects in the using process, for example, most of the plastic-wood composite materials on the market at present have lower static bending strength, are easy to deform in the using process, and the like. Therefore, it is necessary to modify the conventional plastic-wood composite material to improve the mechanical properties thereof.
Disclosure of Invention
Based on the technical problems in the background art, the invention provides a modified plastic-wood composite material plate and a preparation method thereof.
The invention provides a modified plastic-wood composite material plate which is prepared from the following raw materials in parts by weight: 100 parts of modified wood powder, 60 parts of polyvinyl chloride plastic particles, 10 parts of maleic anhydride grafted plastic particles, 8 parts of modified red mud, 5-9 parts of calcium carbonate powder, 3-5 parts of calcium stearate, 2-5 parts of chlorinated polyethylene, 0.5 part of foaming agent and 0.5 part of antioxidant.
Preferably, the particle size of the modified wood flour is 60-100 meshes.
Preferably, the maleic anhydride grafted plastic particle is one of maleic anhydride grafted polyethylene, maleic anhydride grafted polypropylene and maleic anhydride grafted polystyrene.
A preparation method of a modified plastic-wood composite material plate comprises the following preparation steps:
s1, selecting modified wood powder, polyvinyl chloride plastic particles, maleic anhydride grafted plastic particles, modified red mud, calcium carbonate powder, calcium stearate, chlorinated polyethylene, a foaming agent and an antioxidant;
s2, placing polyvinyl chloride plastic particles, maleic anhydride grafted plastic particles, modified red mud, calcium carbonate powder, calcium stearate and chlorinated polyethylene in a mechanical stirring kettle, stirring for 6-10 minutes, and then placing the mixture in an extruder for extrusion granulation to obtain modified plastic particles;
s3, placing the obtained modified plastic particles, modified wood powder, foaming agent and antioxidant into a mechanical stirring kettle, and mechanically stirring for 3-5 minutes;
and S4, after uniformly mixing, putting the mixture into an extruder to extrude and mold the modified plastic-wood composite material plate, and thus completing the production.
Preferably, the temperature of the extruder barrel of the step S2 is 145-175 ℃, and the temperature of the die head is 160-180 ℃.
Preferably, the barrel temperature of the extruder of the step S4 is 155-180 ℃, and the die head temperature is 160-180 ℃.
Preferably, a heat stabilizer is added in step S2, the heat stabilizer is a calcium zinc composite stabilizer with the model number of Y202, and the foaming regulator is a polyacrylate foaming regulator with the model number of ZB-530.
Preferably, the modified plastic-wood board obtained in step S4 passes through the embossing roller under the traction action, the surface of the embossing roller has pre-fabricated uneven grains, after the modified plastic-wood board is extruded by the embossing roller, grains similar to wood grains are correspondingly extruded from the surface of the modified plastic-wood board, and the colors of the grains at different positions and different depths of the surface of the board are not completely consistent, so as to obtain the plastic-wood composite board.
According to the modified plastic-wood composite material plate and the preparation method thereof, the used plastic amount is reduced, the modified plastic-wood composite material plate is more environment-friendly, higher in modulus, higher in rigidity and more resistant to creep deformation, is water-resistant, corrosion-resistant and termite-resistant, is not easy to crack and rot particularly used outdoors, is longer in service life, is higher in static bending strength and the like, and is reduced in water absorption thickness expansion.
Drawings
Fig. 1 is a flow chart of a preparation method of a modified plastic-wood composite material plate provided by the invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
Example one
Referring to fig. 1, a modified plastic-wood composite board is prepared from the following raw materials in parts by weight: 100 parts of modified wood powder, 60 parts of polyvinyl chloride plastic particles, 10 parts of maleic anhydride grafted plastic particles, 8 parts of modified red mud, 5 parts of calcium carbonate powder, 3 parts of calcium stearate, 2 parts of chlorinated polyethylene, 0.5 part of foaming agent and 0.5 part of antioxidant.
In the invention, the particle size of the modified wood powder is 60-100 meshes.
In the invention, the maleic anhydride grafted plastic particle is one of maleic anhydride grafted polyethylene, maleic anhydride grafted polypropylene and maleic anhydride grafted polystyrene.
A preparation method of a modified plastic-wood composite material plate comprises the following preparation steps:
s1, selecting modified wood powder, polyvinyl chloride plastic particles, maleic anhydride grafted plastic particles, modified red mud, calcium carbonate powder, calcium stearate, chlorinated polyethylene, a foaming agent and an antioxidant;
s2, placing polyvinyl chloride plastic particles, maleic anhydride grafted plastic particles, modified red mud, calcium carbonate powder, calcium stearate and chlorinated polyethylene in a mechanical stirring kettle, stirring for 6-10 minutes, and then placing the mixture in an extruder for extrusion granulation to obtain modified plastic particles;
s3, placing the obtained modified plastic particles, modified wood powder, foaming agent and antioxidant into a mechanical stirring kettle, and mechanically stirring for 3-5 minutes;
and S4, after uniformly mixing, putting the mixture into an extruder to extrude and mold the modified plastic-wood composite material plate, and thus completing the production.
In the invention, the temperature of the extruder barrel of the step S2 is 145-175 ℃, and the temperature of the die head is 160-180 ℃.
In the invention, the temperature of the extruder cylinder of the step S4 is 155-180 ℃, and the temperature of the die head is 160-180 ℃.
In the invention, a heat stabilizer is added in the step S2, the heat stabilizer is a calcium zinc composite stabilizer with the model of Y202, and the foaming regulator is a polyacrylate foaming regulator with the model of ZB-530.
In the invention, the modified plastic-wood board obtained in the step S4 passes through the embossing roller under the traction action, the surface of the embossing roller is provided with pre-manufactured uneven grains, grains similar to wood grains are correspondingly extruded on the surface of the modified plastic-wood board after the modified plastic-wood board is extruded by the embossing roller, and the colors of the grains on the surface of the board at different positions and different depths are not completely consistent, so that the plastic-wood composite board is obtained.
Example two
Referring to fig. 1, a modified plastic-wood composite board is prepared from the following raw materials in parts by weight: 100 parts of modified wood powder, 60 parts of polyvinyl chloride plastic particles, 10 parts of maleic anhydride grafted plastic particles, 8 parts of modified red mud, 7 parts of calcium carbonate powder, 4 parts of calcium stearate, 3 parts of chlorinated polyethylene, 0.5 part of foaming agent and 0.5 part of antioxidant.
In the invention, the particle size of the modified wood powder is 60-100 meshes.
In the invention, the maleic anhydride grafted plastic particle is one of maleic anhydride grafted polyethylene, maleic anhydride grafted polypropylene and maleic anhydride grafted polystyrene.
A preparation method of a modified plastic-wood composite material plate comprises the following preparation steps:
s1, selecting modified wood powder, polyvinyl chloride plastic particles, maleic anhydride grafted plastic particles, modified red mud, calcium carbonate powder, calcium stearate, chlorinated polyethylene, a foaming agent and an antioxidant;
s2, placing polyvinyl chloride plastic particles, maleic anhydride grafted plastic particles, modified red mud, calcium carbonate powder, calcium stearate and chlorinated polyethylene in a mechanical stirring kettle, stirring for 6-10 minutes, and then placing the mixture in an extruder for extrusion granulation to obtain modified plastic particles;
s3, placing the obtained modified plastic particles, modified wood powder, foaming agent and antioxidant into a mechanical stirring kettle, and mechanically stirring for 3-5 minutes;
and S4, after uniformly mixing, putting the mixture into an extruder to extrude and mold the modified plastic-wood composite material plate, and thus completing the production.
In the invention, the temperature of the extruder barrel of the step S2 is 145-175 ℃, and the temperature of the die head is 160-180 ℃.
In the invention, the temperature of the extruder cylinder of the step S4 is 155-180 ℃, and the temperature of the die head is 160-180 ℃.
In the invention, a heat stabilizer is added in the step S2, the heat stabilizer is a calcium zinc composite stabilizer with the model of Y202, and the foaming regulator is a polyacrylate foaming regulator with the model of ZB-530.
In the invention, the modified plastic-wood board obtained in the step S4 passes through the embossing roller under the traction action, the surface of the embossing roller is provided with pre-manufactured uneven grains, grains similar to wood grains are correspondingly extruded on the surface of the modified plastic-wood board after the modified plastic-wood board is extruded by the embossing roller, and the colors of the grains on the surface of the board at different positions and different depths are not completely consistent, so that the plastic-wood composite board is obtained.
EXAMPLE III
Referring to fig. 1, a modified plastic-wood composite board is prepared from the following raw materials in parts by weight: 100 parts of modified wood powder, 60 parts of polyvinyl chloride plastic particles, 10 parts of maleic anhydride grafted plastic particles, 8 parts of modified red mud, 9 parts of calcium carbonate powder, 5 parts of calcium stearate, 5 parts of chlorinated polyethylene, 0.5 part of foaming agent and 0.5 part of antioxidant.
In the invention, the particle size of the modified wood powder is 60-100 meshes.
In the invention, the maleic anhydride grafted plastic particle is one of maleic anhydride grafted polyethylene, maleic anhydride grafted polypropylene and maleic anhydride grafted polystyrene.
A preparation method of a modified plastic-wood composite material plate comprises the following preparation steps:
s1, selecting modified wood powder, polyvinyl chloride plastic particles, maleic anhydride grafted plastic particles, modified red mud, calcium carbonate powder, calcium stearate, chlorinated polyethylene, a foaming agent and an antioxidant;
s2, placing polyvinyl chloride plastic particles, maleic anhydride grafted plastic particles, modified red mud, calcium carbonate powder, calcium stearate and chlorinated polyethylene in a mechanical stirring kettle, stirring for 6-10 minutes, and then placing the mixture in an extruder for extrusion granulation to obtain modified plastic particles;
s3, placing the obtained modified plastic particles, modified wood powder, foaming agent and antioxidant into a mechanical stirring kettle, and mechanically stirring for 3-5 minutes;
and S4, after uniformly mixing, putting the mixture into an extruder to extrude and mold the modified plastic-wood composite material plate, and thus completing the production.
In the invention, the temperature of the extruder barrel of the step S2 is 145-175 ℃, and the temperature of the die head is 160-180 ℃.
In the invention, the temperature of the extruder cylinder of the step S4 is 155-180 ℃, and the temperature of the die head is 160-180 ℃.
In the invention, a heat stabilizer is added in the step S2, the heat stabilizer is a calcium zinc composite stabilizer with the model of Y202, and the foaming regulator is a polyacrylate foaming regulator with the model of ZB-530.
In the invention, the modified plastic-wood board obtained in the step S4 passes through the embossing roller under the traction action, the surface of the embossing roller is provided with pre-manufactured uneven grains, grains similar to wood grains are correspondingly extruded on the surface of the modified plastic-wood board after the modified plastic-wood board is extruded by the embossing roller, and the colors of the grains on the surface of the board at different positions and different depths are not completely consistent, so that the plastic-wood composite board is obtained.
The invention comprises the following steps: selecting modified wood powder, polyvinyl chloride plastic particles, maleic anhydride grafted plastic particles, modified red mud, calcium carbonate powder, calcium stearate, chlorinated polyethylene, a foaming agent and an antioxidant; placing polyvinyl chloride plastic particles, maleic anhydride grafted plastic particles, modified red mud, calcium carbonate powder, calcium stearate and chlorinated polyethylene in a mechanical stirring kettle, stirring for 6-10 minutes, and then placing the mixture in an extruder for extrusion granulation to obtain modified plastic particles; placing the obtained modified plastic particles, modified wood powder, foaming agent and antioxidant in a mechanical stirring kettle, and mechanically stirring for 3-5 minutes; and after uniformly mixing, putting the mixture into an extruder to extrude and mold the modified plastic-wood composite material plate, thus finishing.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.

Claims (8)

1. The modified plastic-wood composite material plate is characterized by being prepared from the following raw materials in parts by weight: 100 parts of modified wood powder, 60 parts of polyvinyl chloride plastic particles, 10 parts of maleic anhydride grafted plastic particles, 8 parts of modified red mud, 5-9 parts of calcium carbonate powder, 3-5 parts of calcium stearate, 2-5 parts of chlorinated polyethylene, 0.5 part of foaming agent and 0.5 part of antioxidant.
2. The modified plastic-wood composite board as claimed in claim 1, wherein the modified wood flour has a particle size of 60-100 meshes.
3. The modified plastic-wood composite board as claimed in claim 1, wherein the maleic anhydride grafted plastic particles are one of maleic anhydride grafted polyethylene, maleic anhydride grafted polypropylene and maleic anhydride grafted polystyrene.
4. The preparation method of the modified plastic-wood composite material plate is characterized by comprising the following preparation steps:
s1, selecting modified wood powder, polyvinyl chloride plastic particles, maleic anhydride grafted plastic particles, modified red mud, calcium carbonate powder, calcium stearate, chlorinated polyethylene, a foaming agent and an antioxidant;
s2, placing polyvinyl chloride plastic particles, maleic anhydride grafted plastic particles, modified red mud, calcium carbonate powder, calcium stearate and chlorinated polyethylene in a mechanical stirring kettle, stirring for 6-10 minutes, and then placing the mixture in an extruder for extrusion granulation to obtain modified plastic particles;
s3, placing the obtained modified plastic particles, modified wood powder, foaming agent and antioxidant into a mechanical stirring kettle, and mechanically stirring for 3-5 minutes;
and S4, after uniformly mixing, putting the mixture into an extruder to extrude and mold the modified plastic-wood composite material plate, and thus completing the production.
5. The method for preparing the modified plastic-wood composite board as claimed in claim 4, wherein the temperature of the extruder barrel of the step S2 is 145 ℃ -175 ℃, and the temperature of the die head is 160 ℃ -180 ℃.
6. The preparation method of the modified plastic-wood composite board as claimed in claim 4, wherein the temperature of the extruder barrel of the step S4 is 155-180 ℃, and the temperature of the die head is 160-180 ℃.
7. The method for preparing the modified plastic-wood composite material plate as claimed in claim 4, wherein the heat stabilizer is Y202 calcium-zinc composite stabilizer added in step S2, and the foaming regulator is ZB-530 polyacrylate foaming regulator.
8. The method as claimed in claim 4, wherein the modified plastic-wood composite board obtained in step S4 passes through the embossing roller under the action of traction, the surface of the embossing roller has pre-made rugged patterns, after the modified plastic-wood board is extruded by the embossing roller, the surface of the modified plastic-wood board is correspondingly extruded with patterns similar to wood grains, and the patterns on the surface of the board are not completely consistent in color at different positions and different depths, so as to obtain the plastic-wood composite board.
CN202110418302.0A 2021-04-19 2021-04-19 Modified plastic-wood composite material plate and preparation method thereof Pending CN113122015A (en)

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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CN105348670A (en) * 2015-11-13 2016-02-24 济南大学 A wood plastic composite and a preparing method thereof
CN108517100A (en) * 2018-03-22 2018-09-11 合肥伊只门窗有限公司 A kind of wood plastic composite and preparation method thereof being suitable for outdoor door and window
CN110229538A (en) * 2019-07-09 2019-09-13 江苏明天材料科技有限公司 A kind of High-strength wood-plastic composite panel and preparation method thereof

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102766290A (en) * 2012-07-31 2012-11-07 王鸿 Hot pressed plate and production method and application thereof
CN105348670A (en) * 2015-11-13 2016-02-24 济南大学 A wood plastic composite and a preparing method thereof
CN108517100A (en) * 2018-03-22 2018-09-11 合肥伊只门窗有限公司 A kind of wood plastic composite and preparation method thereof being suitable for outdoor door and window
CN110229538A (en) * 2019-07-09 2019-09-13 江苏明天材料科技有限公司 A kind of High-strength wood-plastic composite panel and preparation method thereof

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