Antibacterial high-strength wood-plastic composite board and preparation process thereof

A preparation process and composite board technology, which is applied in the field of wood-plastic boards, can solve the problems of not having strong sterilization, antibacterial, mildew proof and strong waterproof, impact resistance to bending, bending and impact resistance, hidden safety hazards, etc., to achieve growth Long-term anti-ultraviolet aging performance, enhanced antistatic ability, and improved heat resistance

Inactive Publication Date: 2018-02-02
浙江天博生物新材料股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The present invention aims to solve the problem that when the above-mentioned PVC-based wood-plastic material is used as structural materials such as outdoor exterior walls, floors and templates, the exposure will cause the PVC-based wood-plastic material to expand and crack or be deformed by heat, and the mechanical properties of the PVC-based wood-plastic material will decline rapidly after being heated. When using external walls, etc., there will be great safety hazards; while the low temperature will lead to a sharp decline in the strength and toughness of PVC-based wood-plastic materials, resulting in greater brittleness, and a greater impact on the flexural, flexural and impact strength, and even severe cases. Cracking and fracture phenomena, so the use is also greatly restricted; the mechanical propert

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0060] 1) Preparation of irradiation agent: a) Dissolve 5,5-dimethylhydantoin and sodium hydroxide in absolute ethanol, shake until completely dissolved, react at 85°C for 10 minutes, cool down to obtain mixed solution;

[0061] b) Add 1-bromo-2-chloroethane to the mixed solution obtained in step a), condense and reflux at 80°C for 8 hours, remove the solution with a rotary evaporator after the reaction, and purify to obtain white crystals;

[0062] c) Mix the white crystals obtained in step b) with dimethylaminoethyl methacrylate, co-dissolve in excess dimethylformamide, add potassium iodide and hydroquinone, and react at 80°C for 22 hours under nitrogen protection. After filtering by-products and rotary evaporation to obtain high-purity olefin-based haloamine monomers containing quaternary ammonium groups;

[0063] 2) Dissolve the high-purity olefin-based haloamine monomer containing quaternary ammonium groups obtained in step 1) in deionized water 20 times its mass, and os...

Embodiment 2

[0075] 1) Preparation of irradiation agent: a) Dissolve 5,5-dimethylhydantoin and sodium hydroxide in absolute ethanol, shake until completely dissolved, react at 90°C for 15 minutes, cool down to obtain mixed solution;

[0076] b) Add 1-bromo-2-chloroethane to the mixed solution obtained in step a), condense and reflux at 85°C for 10 hours, remove the solution with a rotary evaporator after the reaction, and purify to obtain white crystals;

[0077] c) Mix the white crystals obtained in step b) with dimethylaminoethyl methacrylate, co-dissolve in excess dimethylformamide, add potassium iodide and hydroquinone, and react at 95°C for 24 hours under nitrogen protection. After filtering by-products and rotary evaporation to obtain high-purity olefin-based haloamine monomers containing quaternary ammonium groups;

[0078] 2) Dissolve the high-purity olefin-based haloamine monomer containing quaternary ammonium groups obtained in step 1) in deionized water 20 times its mass, and v...

Embodiment 3

[0090] 1) Preparation of irradiation agent: a) Dissolve 5,5-dimethylhydantoin and sodium hydroxide in absolute ethanol, shake until completely dissolved, react at 85°C for 10 minutes, cool down to obtain mixed solution;

[0091] b) Add 1-bromo-2-chloroethane to the mixed solution obtained in step a), condense and reflux at 85°C for 8 hours, remove the solution with a rotary evaporator after the reaction, and purify to obtain white crystals;

[0092] c) Mix the white crystals obtained in step b) with dimethylaminoethyl methacrylate, co-dissolve in excess dimethylformamide, add potassium iodide and hydroquinone, and react at 80°C for 22 hours under nitrogen protection. After filtering by-products and rotary evaporation to obtain high-purity olefin-based haloamine monomers containing quaternary ammonium groups;

[0093] 2) Dissolving the high-purity olefin-based haloamine monomer containing quaternary ammonium groups obtained in step 1) in deionized water 33 times its mass, and ...

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Abstract

The invention relates to a green environment-friendly antibacterial high-strength wood-plastic composite board with a certain heat resistance and thermal deformation resistance, capability of keepingstrong toughness at low temperature, high heat intensity and efficient antibacterial, mould-proof and strong waterproof capacity. Waste chlorinated polyvinyl chloride plastics and waste polyvinyl chloride plastics are used for replacing raw material level chlorinated polyvinyl chloride and polyvinyl chloride, production cost can be reduced, pollution caused by original waste chlorinated polyvinylchloride plastics and waste polyvinyl chloride plastics can be reduced, or cost and time needed by degradation and recovery are greatly reduced, the polyvinyl chloride is modified by mixing and addingthe chlorinated polyvinyl chloride, and the heat resistance and various mechanical properties can be greatly enhanced. Compared with a traditional PVC (polyvinyl chloride) wood-plastic material preparation process, the preparation process has the advantages that uniform plasticizing can be achieved in a short time, and energy is saved.

Description

technical field [0001] The invention relates to the field of wood-plastic boards, in particular to a wood-plastic board, which is environmentally friendly, has certain heat resistance, heat deformation resistance, low temperature can maintain its own strength and toughness, has high thermal strength characteristics, and has high-efficiency antibacterial, mildew-proof and strong waterproof. Antibacterial high-strength wood-plastic composite board. Background technique [0002] Wood-plastic board is a composite material prepared by mixing wood fibers with polymer plastics such as polypropylene (PP), polyvinyl chloride (PVC) or polyethylene (PE), and adding various additives to improve performance. It can be obtained by processes such as refining, extrusion and injection molding. As a green and environmentally friendly material, PVC-based wood-plastic composite materials with polyvinyl chloride as the main matrix are widely used in the production of outdoor plank boards, build...

Claims

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Application Information

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IPC IPC(8): C08L27/06C08L27/24C08L97/02C08L51/08C08K13/06C08K9/02C08K9/00C08K7/08C08K5/13C08K3/34C08K3/36C08K5/12
CPCC08L27/06C08K2201/014C08K2201/017C08L27/24C08L2201/04C08L2201/08C08L2205/02C08L2205/035C08L2312/06C08L97/02C08L51/08C08K13/06C08K9/02C08K9/00C08K7/08C08K5/13C08K3/34C08K3/36C08K5/12
Inventor 陈建伟
Owner 浙江天博生物新材料股份有限公司
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