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PVC (polyvinyl chloride)-base wood-plastic composite material and preparation method thereof

A wood-plastic composite material and wood powder technology, applied in the field of PVC-based wood-plastic composite material and its preparation, can solve the problems of poor mechanical properties and high cost

Active Publication Date: 2015-08-05
CHANGCHUN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a PVC-based wood-plastic composite material and its preparation method in order to solve the problems of poor mechanical properties and high cost of existing PVC-based wood-plastic composite materials

Method used

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  • PVC (polyvinyl chloride)-base wood-plastic composite material and preparation method thereof
  • PVC (polyvinyl chloride)-base wood-plastic composite material and preparation method thereof
  • PVC (polyvinyl chloride)-base wood-plastic composite material and preparation method thereof

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preparation example Construction

[0030] The preparation method of the acrylic core-shell structure latex particles containing active groups on the surface includes: adding 80-200 parts by weight of water, 2-10 parts by weight of emulsifier and 0.1-1 part by weight of initiator into the reaction kettle , heat up to 40-80°C, then add 60-90 parts by weight of polyacrylate rubber to the reactor for polymerization, and then add 7-30 parts by weight of methyl methacrylate, 3-10 parts by weight of The second monomer was reacted for 2 hours, filtered, coagulated, and dried to obtain acrylate core-shell latex particles with active groups on the surface. The emulsifier is not particularly limited, and is preferably one or more of potassium oleate, potassium stearate, disproportionated potassium abietate or sodium dodecylbenzenesulfonate. The initiator is not particularly limited, preferably potassium persulfate, benzoyl peroxide or azobisisobutyronitrile.

[0031] According to the present invention, the wood powder is...

Embodiment 1

[0036] Add 80 parts of water, 2-parts of emulsifier potassium stearate and 0.1 part of initiator potassium persulfate into the reactor, raise the temperature to 40°C, then add 60 parts of polyacrylate rubber to the reactor for polymerization, and then add Add 7 parts of methyl methacrylate and 3 parts of glycidyl methacrylate dropwise into the reaction kettle, react for 2 hours, filter, coagulate, and dry to obtain acrylate core-shell latex particles ACR1 with active groups on the surface.

Embodiment 2

[0038] Add 150 parts of water, 5 parts of emulsifier potassium oleate and 0.5 parts of initiator benzoyl peroxide into the reactor, raise the temperature to 60°C, then add 75 parts of polyacrylate rubber to the reactor for polymerization, and then add 20 parts of methyl methacrylate and 5 parts of maleic anhydride were added dropwise into the reaction kettle, reacted for 2 hours, filtered, coagulated, and dried to obtain acrylate core-shell latex particles ACR2 with active groups on the surface.

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Abstract

The invention provides a PVC (polyvinyl chloride)-base wood-plastic composite material and a preparation method thereof, belonging to the field of PVC-base wood-plastic composite materials. The invention solves the problems of poor mechanical properties and high cost in the existing PVC-base wood-plastic composite material. The PVC-base wood-plastic composite material comprises the following components in parts by weight: 100 parts of PVC, 1-3 parts of stabilizer, 1-2 parts of fatty acid soap, 1-3 parts of processing modifier ACR, 8-10 parts of reactive toughener, 20-50 parts of wood meal and 2-4 parts of polyethylene wax. The invention also provides a preparation method of the PVC-base wood-plastic composite material. The reactive toughener is a polyacrylate core-shell toughener containing epoxy groups and other active groups on the surface. While reacting with the hydroxy groups on the wood meal surface, the reactive toughener can reduce the polarity of the wood meal, promotes the dispersion of the wood meal in the PVC and enhance the filling amount of the wood meal. The mechanical properties of the composite material are enhanced.

Description

technical field [0001] The invention belongs to the field of PVC-based wood-plastic composite materials, and in particular relates to a PVC-based wood-plastic composite material and a preparation method thereof. Background technique [0002] PVC-based wood-plastic composite material is a cheap new composite material made of wood powder and PVC resin or recycled waste PVC products as the main raw materials, mixed at high temperature, and then molded. This material has both the low flammability and corrosion resistance of PVC resin and the texture of wood. It is known as "synthetic wood" and has broad application prospects in construction, transportation, light industry and other departments. The development of wood-plastic composite materials is of great significance to the comprehensive utilization of waste, environmental protection and mitigation of natural wood consumption. [0003] One of the main problems facing the preparation of PVC-based wood-plastic composites is to...

Claims

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Application Information

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IPC IPC(8): C08L27/06C08L97/02C08L23/06C08L51/04C08K5/098C08K5/57
CPCC08K2201/014C08L27/06C08L2205/035C08L97/02C08L23/06C08L51/003C08K5/098C08K3/32C08K5/57
Inventor 吴广峰刘丽张海龙张会轩
Owner CHANGCHUN UNIV OF TECH
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