CN114381073B - Ultraviolet aging resistant chitosan-polyvinyl chloride wood-plastic board and preparation method thereof - Google Patents
Ultraviolet aging resistant chitosan-polyvinyl chloride wood-plastic board and preparation method thereof Download PDFInfo
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- CN114381073B CN114381073B CN202111534171.9A CN202111534171A CN114381073B CN 114381073 B CN114381073 B CN 114381073B CN 202111534171 A CN202111534171 A CN 202111534171A CN 114381073 B CN114381073 B CN 114381073B
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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
- C08L27/00—Compositions 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; Compositions of derivatives of such polymers
- C08L27/02—Compositions 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; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L27/04—Compositions 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; Compositions of derivatives of such polymers not modified by chemical after-treatment containing chlorine atoms
- C08L27/06—Homopolymers or copolymers of vinyl chloride
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08B—POLYSACCHARIDES; DERIVATIVES THEREOF
- C08B37/00—Preparation of polysaccharides not provided for in groups C08B1/00 - C08B35/00; Derivatives thereof
- C08B37/0006—Homoglycans, i.e. polysaccharides having a main chain consisting of one single sugar, e.g. colominic acid
- C08B37/0024—Homoglycans, i.e. polysaccharides having a main chain consisting of one single sugar, e.g. colominic acid beta-D-Glucans; (beta-1,3)-D-Glucans, e.g. paramylon, coriolan, sclerotan, pachyman, callose, scleroglucan, schizophyllan, laminaran, lentinan or curdlan; (beta-1,6)-D-Glucans, e.g. pustulan; (beta-1,4)-D-Glucans; (beta-1,3)(beta-1,4)-D-Glucans, e.g. lichenan; Derivatives thereof
- C08B37/0027—2-Acetamido-2-deoxy-beta-glucans; Derivatives thereof
- C08B37/003—Chitin, i.e. 2-acetamido-2-deoxy-(beta-1,4)-D-glucan or N-acetyl-beta-1,4-D-glucosamine; Chitosan, i.e. deacetylated product of chitin or (beta-1,4)-D-glucosamine; Derivatives thereof
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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
- C08L2201/00—Properties
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
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Abstract
The invention relates to the technical field of home decoration building materials, and discloses an ultraviolet aging resistant chitosan-polyvinyl chloride wood-plastic board, wherein ultraviolet aging resistant chitosan is used as an ultraviolet resistant agent, mixed with polyvinyl chloride and bamboo powder, extruded and pressed to form, so that the ultraviolet aging resistant chitosan-polyvinyl chloride wood-plastic board is obtained, and the chitosan and cellulose-based bamboo powder have good interface compatibility with polyvinyl chloride, so that the added chitosan is used as a compatilizer, the interface compatibility of the bamboo powder and the polyvinyl chloride is improved, the mechanical strength of the wood-plastic board is enhanced, the benzotriazole-triazine modified chitosan has good ultraviolet absorption performance, the ultraviolet aging resistant performance of the wood-plastic board is enhanced obviously, and good mechanical performance and service performance can be maintained under long-time sunlight and ultraviolet irradiation.
Description
Technical Field
The invention relates to the technical field of home decoration building materials, in particular to an ultraviolet aging resistant chitosan-polyvinyl chloride wood-plastic board and a preparation method thereof.
Background
Compared with the traditional wooden furniture building materials, the wood-plastic plate has the advantages of insect prevention, termite prevention, fire resistance, strong processability, good sound absorption effect and the like, is a green environment-friendly material obtained by mixing plant cellulose wood and thermoplastic polymer materials, has the characteristics and properties of plastics and woods, such as polyvinyl chloride wood-plastic plates, polyethylene wood-plastic plates and the like, and can be made into wood-plastic indoor doors, cabinet wardrobe, decorative wallboard, guardrail fence and the like.
The traditional polyvinyl chloride wood-plastic material has low ultraviolet resistance, is easy to age by ultraviolet light after long-term contact with sunlight and ultraviolet radiation, and causes the problems of ageing and deterioration of materials, reduced mechanical strength and the like, so that the ultraviolet ageing resistance of the polyvinyl chloride wood-plastic material needs to be enhanced to meet the market demand, chitosan is taken as a renewable environment-friendly energy source, has good biocompatibility and biodegradability, has a research hot spot for development and utilization of chitosan in recent years, chitosan, cellulose wood powder and polyvinyl chloride have good compatibility, can improve the interfacial compatibility between composite materials, contains abundant active hydroxyl groups and amino groups, and can be used for compounding the ultraviolet-resistant functional chitosan and polyvinyl chloride by chemical grafting, so that the wood-plastic material can be applied to ultraviolet ageing resistant home decoration building materials.
(one) solving the technical problems
Aiming at the defects of the prior art, the invention provides an ultraviolet aging resistant chitosan-polyvinyl chloride wood-plastic plate and a preparation method thereof, which improve the ultraviolet aging resistant performance of the polyvinyl chloride wood-plastic plate.
(II) technical scheme
In order to achieve the above purpose, the present invention provides the following technical solutions: the preparation method of the ultraviolet aging resistant chitosan-polyvinyl chloride wood-plastic plate comprises the following steps of:
(1) Adding chitosan and cyanuric chloride into a mixed solvent of N, N-dimethylformamide and tetrahydrofuran, stirring and dissolving, adding an accelerator triethylamine, reacting, cooling in an ice bath, adding deionized water, separating out precipitate, centrifuging, washing with deionized water and acetone, and thus obtaining cyanuric chloride modified chitosan.
(2) Adding cyanuric chloride modified chitosan and 2- (2-hydroxyphenyl) -5-amino-2H-benzotriazole into a mixed solvent of N, N-dimethylformamide and tetrahydrofuran, stirring and dissolving, adding sodium carbonate as an accelerator, reacting, cooling in an ice bath, adding deionized water, precipitating, washing with ethanol and acetone, and thus obtaining the benzotriazole-triazine modified chitosan.
(3) Adding polyvinyl chloride resin, bamboo powder, benzotriazole-triazine modified chitosan and maleic anhydride grafted polyvinyl chloride into a high-speed mixer, uniformly mixing, adding a calcium zinc stabilizer, a glass fiber filler and a stearic acid lubricant, mixing at high speed, placing the materials into a double-screw extruder, extruding master batch, placing the master batch into a flat vulcanizing machine, and pressing into a plate to obtain the ultraviolet aging resistant chitosan-polyvinyl chloride wood-plastic plate.
Preferably, in the step (1), the mass portion of the N, N-dimethylformamide is 1000 portions, the mass portion of the tetrahydrofuran is 350-600 portions, the mass portion of the chitosan is 40-70 portions, the mass portion of the cyanuric chloride is 65-100 portions, and the mass portion of the triethylamine is 120-220 portions.
Preferably, in the step (2), the mass portion of N, N-dimethylformamide is 1000, the mass portion of tetrahydrofuran is 500-1200, the mass portion of cyanuric chloride modified chitosan is 60-120, the mass portion of 2- (2-hydroxyphenyl) -5-amino-2H-benzotriazole is 75-180, and the mass portion of sodium carbonate is 150-320.
Preferably, the temperature of the reaction in the step (2) is 0-10 ℃ and the reaction time is 12-24h.
Preferably, in the step (3), the polyvinyl chloride resin is 1000 parts by weight, the bamboo powder is 450-600 parts by weight, the benzotriazole-triazine modified chitosan is 15-40 parts by weight, the calcium zinc stabilizer is 55-80 parts by weight, the glass fiber filler is 60-150 parts by weight, and the stearic acid is 8-20 parts by weight.
Preferably, the extrusion temperature in the step (3) is 160-170 ℃, the vulcanization temperature is 125-160 ℃, and the pressure is 8-12MPa.
(III) beneficial technical effects
Compared with the prior art, the invention has the following beneficial technical effects:
according to the ultraviolet aging resistant chitosan-polyvinyl chloride wood-plastic plate, triethylamine is used as a reaction accelerator, one chlorine atom of cyanuric chloride is subjected to dehydroHCl reaction with an active amino group of chitosan to obtain cyanuric chloride modified chitosan, cyanuric chloride is introduced into a chitosan molecular chain, and the chlorine atom of cyanuric chloride modified by chitosan is further subjected to reaction with an amino group of 2- (2-hydroxyphenyl) -5-amino-2H-benzotriazole to obtain benzotriazole-triazine modified chitosan, so that a benzotriazole-triazine functional group with ultraviolet absorption performance is chemically bonded to the chitosan molecular chain to obtain ultraviolet resistant functional chitosan.
The ultraviolet aging resistant chitosan-polyvinyl chloride wood-plastic board is prepared by mixing ultraviolet aging resistant functionalized chitosan serving as an ultraviolet resistant agent with polyvinyl chloride and bamboo powder, extruding and pressing the mixture to form the ultraviolet aging resistant chitosan-polyvinyl chloride wood-plastic board, and the chitosan and the cellulose-based bamboo powder have good interface compatibility with the polyvinyl chloride, so that the added chitosan serving as a compatilizer improves the interface compatibility of the bamboo powder and the polyvinyl chloride, is beneficial to enhancing the mechanical strength of the wood-plastic board, and the benzotriazole-triazine modified chitosan has good ultraviolet absorption performance, obviously improves the ultraviolet aging resistance of the wood-plastic board, and can maintain good mechanical performance and service performance under long-time sunlight and ultraviolet irradiation.
Detailed Description
In order to achieve the above object, the present invention provides the following specific embodiments and examples: a preparation method of the ultraviolet aging resistant chitosan-polyvinyl chloride wood-plastic plate comprises the following steps:
(1) Adding 40-70 parts of chitosan and 65-100 parts of cyanuric chloride into 1000 parts of mixed solvent of N, N-dimethylformamide and 350-600 parts of tetrahydrofuran, stirring and dissolving, adding 120-220 parts of accelerator triethylamine, reacting, cooling in an ice bath, adding deionized water, separating out precipitate, centrifuging, washing with deionized water and acetone, and thus obtaining cyanuric chloride modified chitosan.
(2) Adding 60-120 parts of cyanuric chloride modified chitosan and 75-180 parts of 2- (2-hydroxyphenyl) -5-amino-2H-benzotriazole into 1000 parts of N, N-dimethylformamide and 500-1200 parts of tetrahydrofuran mixed solvent, stirring and dissolving, adding 150-320 parts of promoter sodium carbonate, reacting for 12-24 hours at 0-10 ℃, adding deionized water after ice bath cooling, precipitating, washing with ethanol and acetone, and thus obtaining the benzotriazole-triazine modified chitosan.
(3) Adding 1000 parts by weight of polyvinyl chloride resin, 450-600 parts by weight of bamboo powder, 15-40 parts by weight of benzotriazole-triazine modified chitosan and maleic anhydride grafted polyvinyl chloride into a high-speed mixer, uniformly mixing, adding 55-80 parts by weight of calcium zinc stabilizer, 60-150 parts by weight of glass fiber filler and 8-20 parts by weight of stearic acid lubricant, mixing at high speed, placing the materials into a double-screw extruder, extruding the master batch at 160-170 ℃, placing the master batch into a flat vulcanizing machine, vulcanizing at 125-160 ℃ and under 8-12MPa, and pressing into a plate to obtain the ultraviolet aging resistant chitosan-polyvinyl chloride wood-plastic plate.
Example 1
(1) Adding 20g of chitosan and 35g of cyanuric chloride into a mixed solvent of 500g of N, N-dimethylformamide and 180g of tetrahydrofuran, stirring and dissolving, adding 60g of accelerator triethylamine, reacting, cooling in an ice bath, adding deionized water, separating out precipitate, centrifuging, washing with deionized water and acetone, and thus obtaining the cyanuric chloride modified chitosan.
(2) Adding 30g of cyanuric chloride modified chitosan and 40g of 2- (2-hydroxyphenyl) -5-amino-2H-benzotriazole into 500g of N, N-dimethylformamide and 250g of tetrahydrofuran mixed solvent in parts by weight, stirring and dissolving, adding 75g of promoter sodium carbonate, reacting at 0 ℃ for 12H, cooling in an ice bath, adding deionized water, precipitating, washing with ethanol and acetone, and thus obtaining the benzotriazole-triazine modified chitosan.
(3) Adding 500g of polyvinyl chloride resin, 230g of bamboo powder, 15g of benzotriazole-triazine modified chitosan and maleic anhydride grafted polyvinyl chloride into a high-speed mixer, uniformly mixing, adding 28g of calcium-zinc stabilizer, 30g of glass fiber filler and 4g of stearic acid lubricant, mixing at high speed, placing the materials into a double-screw extruder, extruding the master batch at 160 ℃, placing the master batch into a flat vulcanizing machine, vulcanizing at 125 ℃ under the pressure of 8MPa, and pressing into a plate to obtain the ultraviolet aging resistant chitosan-polyvinyl chloride wood-plastic plate.
Example 2
(1) Adding 25g of chitosan and 38g of cyanuric chloride into 500g of mixed solvent of N, N-dimethylformamide and 200g of tetrahydrofuran, stirring and dissolving, adding 70g of accelerator triethylamine, reacting, cooling in an ice bath, adding deionized water, separating out precipitate, centrifuging, washing with deionized water and acetone, and thus obtaining the cyanuric chloride modified chitosan.
(2) Adding 35g of cyanuric chloride modified chitosan and 50g of 2- (2-hydroxyphenyl) -5-amino-2H-benzotriazole into a mixed solvent of 500g of N, N-dimethylformamide and 320g of tetrahydrofuran, stirring and dissolving, adding 85g of promoter sodium carbonate, reacting at 0 ℃ for 18H, cooling in an ice bath, adding deionized water, precipitating, washing with ethanol and acetone, and thus obtaining the benzotriazole-triazine modified chitosan.
(3) Adding 500g of polyvinyl chloride resin, 245g of bamboo powder, 22g of benzotriazole-triazine modified chitosan and maleic anhydride grafted polyvinyl chloride into a high-speed mixer, uniformly mixing, adding 30g of calcium-zinc stabilizer, 40g of glass fiber filler and 6g of stearic acid lubricant, mixing at high speed, placing the materials into a double-screw extruder, extruding the master batch at 160 ℃, placing the master batch into a flat vulcanizing machine, vulcanizing at 160 ℃ under 10MPa, and pressing into a plate to obtain the ultraviolet aging resistant chitosan-polyvinyl chloride wood-plastic plate.
Example 3
(1) Adding 28g of chitosan and 42g of cyanuric chloride into a mixed solvent of 500g of N, N-dimethylformamide and 250g of tetrahydrofuran, stirring and dissolving, adding 85g of accelerator triethylamine, reacting, cooling in an ice bath, adding deionized water, separating out precipitate, centrifuging, washing with deionized water and acetone, and thus obtaining the cyanuric chloride modified chitosan.
(2) Adding 45g of cyanuric chloride modified chitosan and 65g of 2- (2-hydroxyphenyl) -5-amino-2H-benzotriazole into 500g of N, N-dimethylformamide and 480g of tetrahydrofuran mixed solvent, stirring and dissolving, adding 110g of promoter sodium carbonate, reacting at 5 ℃ for 18H, cooling in an ice bath, adding deionized water, precipitating, washing with ethanol and acetone, and thus obtaining the benzotriazole-triazine modified chitosan.
(3) Adding 500g of polyvinyl chloride resin, 260g of bamboo powder, 28g of benzotriazole-triazine modified chitosan and maleic anhydride grafted polyvinyl chloride into a high-speed mixer, uniformly mixing, adding 35g of calcium zinc stabilizer, 52g of glass fiber filler and 7g of stearic acid lubricant, mixing at high speed, placing the materials into a double-screw extruder, extruding the master batch at 165 ℃, placing the master batch into a flat vulcanizing machine, vulcanizing at 140 ℃ and under 10MPa, and pressing into a plate to obtain the ultraviolet aging resistant chitosan-polyvinyl chloride wood-plastic plate.
Example 4
(1) Adding 32g of chitosan and 45g of cyanuric chloride into 500g of mixed solvent of N, N-dimethylformamide and 275g of tetrahydrofuran, stirring and dissolving, adding 85g of accelerator triethylamine, reacting, cooling in an ice bath, adding deionized water, separating out precipitate, centrifuging, washing with deionized water and acetone, and thus obtaining the cyanuric chloride modified chitosan.
(2) Adding 52g of cyanuric chloride modified chitosan and 75g of 2- (2-hydroxyphenyl) -5-amino-2H-benzotriazole into a mixed solvent of 500g of N, N-dimethylformamide and 520g of tetrahydrofuran, stirring and dissolving, adding 135g of promoter sodium carbonate, reacting at 10 ℃ for 24H, cooling in an ice bath, adding deionized water, precipitating, washing with ethanol and acetone, and thus obtaining the benzotriazole-triazine modified chitosan.
(3) Adding 500g of polyvinyl chloride resin, 285g of bamboo powder, 35g of benzotriazole-triazine modified chitosan and maleic anhydride grafted polyvinyl chloride into a high-speed mixer, uniformly mixing, adding 36g of calcium-zinc stabilizer, 65g of glass fiber filler and 8g of stearic acid lubricant, mixing at high speed, placing the materials into a double-screw extruder, extruding the master batch at 165 ℃, placing the master batch into a flat vulcanizing machine, vulcanizing at 160 ℃ under 8MPa, and pressing into a plate to obtain the ultraviolet aging resistant chitosan-polyvinyl chloride wood-plastic plate.
Example 5
(1) Adding 35g of chitosan and 50g of cyanuric chloride into a mixed solvent of 500g of N, N-dimethylformamide and 300g of tetrahydrofuran, stirring and dissolving, adding 110g of accelerator triethylamine, reacting, cooling in an ice bath, adding deionized water, separating out precipitate, centrifuging, washing with deionized water and acetone, and thus obtaining the cyanuric chloride modified chitosan.
(2) Adding 60g of cyanuric chloride modified chitosan and 90g of 2- (2-hydroxyphenyl) -5-amino-2H-benzotriazole into 500g of N, N-dimethylformamide and 600g of tetrahydrofuran mixed solvent in parts by weight, stirring and dissolving, adding 160g of promoter sodium carbonate, reacting at 10 ℃ for 24H, cooling in an ice bath, adding deionized water, precipitating, washing with ethanol and acetone, and thus obtaining the benzotriazole-triazine modified chitosan.
(3) Adding 500g of polyvinyl chloride resin, 300g of bamboo powder, 40g of benzotriazole-triazine modified chitosan and maleic anhydride grafted polyvinyl chloride into a high-speed mixer, uniformly mixing, adding 40g of calcium-zinc stabilizer, 75g of glass fiber filler and 10g of stearic acid lubricant, mixing at high speed, placing the materials into a double-screw extruder, extruding the master batch at 170 ℃, placing the master batch into a flat vulcanizing machine, vulcanizing at 160 ℃ under the pressure of 12MPa, and pressing into a plate to obtain the ultraviolet aging resistant chitosan-polyvinyl chloride wood-plastic plate.
Comparative example 1
(1) Adding 25g of chitosan and 40g of cyanuric chloride into a mixed solvent of 500g of N, N-dimethylformamide and 240g of tetrahydrofuran, stirring and dissolving, adding 85g of accelerator triethylamine, reacting, cooling in an ice bath, adding deionized water, separating out precipitate, centrifuging, washing with deionized water and acetone, and thus obtaining the cyanuric chloride modified chitosan.
(2) Adding 500g of polyvinyl chloride resin, 270g of bamboo powder, 30g of cyanuric chloride modified chitosan and maleic anhydride grafted polyvinyl chloride into a high-speed mixer, uniformly mixing, adding 32g of calcium zinc stabilizer, 50g of glass fiber filler and 8g of stearic acid lubricant, mixing at high speed, placing the materials into a double-screw extruder, extruding the master batch at 165 ℃, placing the master batch into a flat vulcanizing machine, vulcanizing at 160 ℃ under the pressure of 12MPa, and pressing into a plate to obtain the chitosan-polyvinyl chloride wood-plastic plate.
The ultraviolet aging resistant chitosan-polyvinyl chloride wood plastic plate and the chitosan-polyvinyl chloride wood plastic plate in the examples and the comparative examples are made into strip-shaped samples, the tensile strength of the strip-shaped samples is tested by using an MTS-universal testing machine, then the new strip-shaped samples are placed in an ultraviolet aging test box again, an accelerated photo aging test is carried out for 360 hours, and the tensile strength after the photo aging test is tested, wherein the testing method is GB/T4944-2005.
And (3) testing the impact strength of the new strip-shaped sample by using an MTS-universal testing machine, then placing the new strip-shaped sample in an ultraviolet light aging test box, performing an accelerated photo-aging test for 360 hours, and testing the impact strength after the photo-aging test, wherein the testing method is GB/T-1043.1-2008.
Claims (6)
1. A chitosan-polyvinyl chloride wood-plastic plate resistant to ultraviolet aging is characterized in that: the preparation method of the ultraviolet aging resistant chitosan-polyvinyl chloride wood-plastic plate comprises the following steps:
(1) Adding chitosan and cyanuric chloride into a mixed solvent of N, N-dimethylformamide and tetrahydrofuran, stirring and dissolving, adding an accelerator triethylamine, reacting, cooling in an ice bath, adding deionized water, separating out precipitate, centrifuging, washing with deionized water and acetone, and obtaining cyanuric chloride modified chitosan;
(2) Adding cyanuric chloride modified chitosan and 2- (2-hydroxyphenyl) -5-amino 2H-benzotriazole into a mixed solvent of N, N-dimethylformamide and tetrahydrofuran, stirring and dissolving, adding promoter sodium carbonate for reaction, cooling in ice bath, adding deionized water, precipitating, washing with ethanol and acetone, and obtaining benzotriazole-triazine modified chitosan;
(3) Adding polyvinyl chloride resin, bamboo powder, benzotriazole-triazine modified chitosan and maleic anhydride grafted polyvinyl chloride into a high-speed mixer, uniformly mixing, adding a calcium zinc stabilizer, a glass fiber filler and a stearic acid lubricant, mixing at high speed, placing the materials into a double-screw extruder, extruding master batch, placing the master batch into a flat vulcanizing machine, and pressing into a plate to obtain the ultraviolet aging resistant chitosan-polyvinyl chloride wood-plastic plate.
2. The ultraviolet aging resistant chitosan-polyvinyl chloride wood-plastic panel according to claim 1, wherein: in the step (1), the mass parts of N, N-dimethylformamide are 1000 parts, tetrahydrofuran is 350-600 parts, chitosan is 40-70 parts, cyanuric chloride is 65-100 parts, and triethylamine is 120-220 parts.
3. The ultraviolet aging resistant chitosan-polyvinyl chloride wood-plastic panel according to claim 1, wherein: in the step (2), the mass portion of N, N-dimethylformamide is 1000 portions, the mass portion of tetrahydrofuran is 500-1200 portions, the mass portion of cyanuric chloride modified chitosan is 60-120 portions, the mass portion of 2- (2-hydroxyphenyl) -5-amino-2H-benzotriazole is 75-180 portions, and the mass portion of sodium carbonate is 150-320 portions.
4. The ultraviolet aging resistant chitosan-polyvinyl chloride wood-plastic panel according to claim 1, wherein: the reaction temperature in the step (2) is 0-10 ℃ and the reaction time is 12-24h.
5. The ultraviolet aging resistant chitosan-polyvinyl chloride wood-plastic panel according to claim 1, wherein: in the step (3), the polyvinyl chloride resin comprises 1000 parts by weight of bamboo powder 450-600 parts by weight of benzotriazole-triazine modified chitosan 15-40 parts by weight of calcium zinc stabilizer 55-80 parts by weight of glass fiber filler 60-150 parts by weight of stearic acid 8-20 parts by weight of glass fiber filler.
6. The ultraviolet aging resistant chitosan-polyvinyl chloride wood-plastic panel according to claim 1, wherein: the extrusion temperature in the step (3) is 160-170 ℃, the vulcanization temperature is 125-160 ℃, and the pressure is 8-12MPa.
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