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A kind of preparation method of natural Eucommia wood-plastic composite material

A wood-plastic composite material and Eucommia wood technology, which is applied in the field of preparation of natural Eucommia wood-plastic composite materials, can solve the problems of reduced performance of composite materials, poor mechanical properties of compatibilizers, etc., and achieves low moisture absorption rate, good dimensional stability, The effect of low hygroscopic expansion rate

Active Publication Date: 2019-06-21
SHENYANG INSTITUTE OF CHEMICAL TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The amount of compatibilizer MAH-g-PP should be able to cover all the surface of Eucommia wood fiber, if it is too little, the compatibility between wood and plastic cannot be fully exerted, and if it is too much, the mechanical properties of the compatibilizer itself are poor, and it will reduce the performance of composite materials

Method used

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  • A kind of preparation method of natural Eucommia wood-plastic composite material

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Experimental program
Comparison scheme
Effect test

Embodiment

[0028] (1) Dry the coarse wood chips at 100°C for 8 hours, and then crush them with a high-speed pulverizer for 5 to 10 minutes to refine the coarse wood powder.

[0029] (2) Add 150 parts of Eucommia wood powder to 100 parts of pure polypropylene, 1 part of antioxidant 1010, 30 parts of talcum powder, 1 part of paraffin, 20 parts of polypropylene grafted maleic anhydride (PP-g-MAH), Put in a high speed mixer and mix well.

[0030] (3) Put the mixed sample into a twin-screw extruder, and extrude it at a certain temperature.

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Abstract

The invention relates to a preparation method of a natural eucommia wood-plastic composite material, which relates to a preparation method of the composite material. The protein contained in the eucommia wood of the present invention is similar to most foods, and various amino acids and mineral elements necessary for the human body have been detected. At the same time, eucommia wood itself contains a lot of lignin, and the composite material made by filling pure polypropylene and other thermoplastic resins with natural eucommia wood powder and adding additives has certain hardness, tensile strength, Vicat softening temperature and density, and Has a certain elongation at break. Compared with traditional materials, wood-plastic materials have unique advantages: they can release some beneficial elements to the human body, have no defects of wood products (knots, oblique grains, decay, etc.), have a wood-like appearance, and are harder than plastics. Molding and weather resistance, etc. This wood-plastic product has a wide range of applications, such as wall panel decoration, floor, fence, indoor tables and chairs, automotive interior parts, etc.

Description

technical field [0001] The invention relates to a preparation method of a composite material, in particular to a preparation method of a natural Eucommia wood-plastic composite material. Background technique [0002] Wood-Plastic Composites (WPC for short) is made by crushing all kinds of wood powder, crop straw and other plant fibers, collecting powders of different meshes, and using them as raw materials together with plastic pellets, and then adding various It is a kind of additive, which is made into a new type of composite material with high performance and high added value through processing techniques such as banbury molding and melt extrusion. [0003] The wood powder used in traditional wood-plastic materials is sawdust obtained by crushing straw, poplar, bamboo, etc., and the demand for wood is very large. The present invention does not simply use these traditional woods, but uses the unique plant Eucommia ulmoides in my country as the material, and the wood chips...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L97/02C08L23/12C08L51/06C08K3/34
CPCC08L97/02C08L2205/035C08L23/12C08L51/06C08K3/34
Inventor 方庆红牟锐兴杨凤康海澜
Owner SHENYANG INSTITUTE OF CHEMICAL TECHNOLOGY