Wood and plastic composite prepared by adopting wastes and preparation method of wood plastic composite

A wood-plastic composite material and waste technology, applied in the field of wood-plastic composite material and its preparation, can solve the problems of poor biodegradation performance, poor mechanical performance, poor heat resistance, etc. Excellent thermal performance

Inactive Publication Date: 2017-03-29
XIHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] Aiming at the above-mentioned deficiencies in the prior art, the present invention provides a wood-plastic composite material prepared from waste and its preparation method, which can effectively solve the problems of poor biodegradability, poor mechanical properties, and heat resistance in the prior art. Bad question

Method used

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  • Wood and plastic composite prepared by adopting wastes and preparation method of wood plastic composite
  • Wood and plastic composite prepared by adopting wastes and preparation method of wood plastic composite

Examples

Experimental program
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Effect test

Embodiment 1

[0034] A wood-plastic composite material prepared from waste, comprising the following raw materials in parts by weight: 20 parts of modified chestnut shell powder, 10 parts of modified bamboo powder, 20 parts of modified wood powder, 20 parts of acrylate hydrophobic monomer, 15 parts of hydrophobic resin, 1 part of lubricant, 1 part of antioxidant and 1.5 parts of plasticizer.

[0035] Wherein, the modified chestnut shell powder is prepared by the following method:

[0036] (1) Soak chestnut shells in a hydrochloric acid solution with a volume fraction of 8% for 36 hours, take them out and wash them with clean water, and then dry them in a vacuum drying oven at 60°C to constant weight to obtain pretreated chestnut shells;

[0037] (2) Add the pretreated chestnut shells into the acetic acid-sodium acetate buffer solution with a pH of 4.2, the bath ratio is 1:10, then add laccase, put them in 35°C for 36 hours, take them out and wash them with hot water at 60°C, Drying at 60 D...

Embodiment 2

[0047] A wood-plastic composite material prepared from waste, comprising the following raw materials in parts by weight: 30 parts of modified chestnut shell powder, 20 parts of modified bamboo powder, 30 parts of modified wood powder, 40 parts of acrylate hydrophobic monomer, 25 parts of hydrophobic resin, 2 parts of lubricant, 2 parts of antioxidant and 3 parts of plasticizer.

[0048]Wherein, the modified chestnut shell powder is prepared by the following method:

[0049] (1) Soak chestnut shells in a hydrochloric acid solution with a volume fraction of 10% for 24 hours, take them out and clean them with clean water, and then dry them in a vacuum drying oven at 65°C to constant weight to obtain pretreated chestnut shells;

[0050] (2) Add the pretreated chestnut shells to the acetic acid-sodium acetate buffer solution with a pH of 4.2, the bath ratio is 8:55, then add laccase, put them in 40°C for 24 hours, take them out and wash them with hot water at 80°C. Drying at 60 DE...

Embodiment 3

[0060] A wood-plastic composite material prepared from waste, comprising the following raw materials in parts by weight: 28 parts of modified chestnut shell powder, 15 parts of modified bamboo powder, 26 parts of modified wood powder, 35 parts of acrylate hydrophobic monomer, 20 parts of hydrophobic resin, 1.5 parts of lubricant, 1.2 parts of antioxidant and 2 parts of plasticizer.

[0061] Wherein, the modified chestnut shell powder is prepared by the following method:

[0062] (1) Soak chestnut shells in a hydrochloric acid solution with a volume fraction of 10% for 24 hours, take them out and clean them with clean water, and then dry them in a vacuum drying oven at 65°C to constant weight to obtain pretreated chestnut shells;

[0063] (2) Add the pretreated chestnut shells to the acetic acid-sodium acetate buffer solution with a pH of 4.2, the bath ratio is 1:8, then add laccase, put them in 37°C for 30 hours, take them out and wash them with hot water at 80°C, Drying at 6...

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Abstract

The invention discloses a wood and plastic composite prepared by adopting wastes. The wood and plastic composite is prepared from the following raw materials in parts by weight: 20-30 parts of modified chestnut shell powder, 10-20 parts of modified bamboo powder, 20-30 parts of modified wood powder, 20-40 parts of an acrylate hydrophobic monomer, 15-25 parts of hydrophobic resin, 1-2 parts of a lubricant, 1-2 parts of an antioxidant and 1.5-3 parts of a plasticizer. A preparation method comprises the following steps: (1) weighing the modified chestnut shell powder, the modified bamboo powder and the modified wood powder according to a formula, mixing, then adding the acrylate hydrophobic monomer, carrying out reaction for 3-6h at the temperature of 40-50 DEG C, and carrying out vacuum concentration and drying; and (2) adding the residual raw materials in a dried product, mixing, then sending a mixture into a twin screw extruder, and carrying out extrusion forming and cooling setting to obtain the wood and plastic composite. According to the wood and plastic composite and the preparation method, the waste materials are utilized, so that the cost is low; and the prepared product is better in both mechanical performance and heat resistance, is improved in biodegradability and is beneficial to environmental protection.

Description

technical field [0001] The invention belongs to the technical field of composite materials, and in particular relates to a wood-plastic composite material prepared from waste and a preparation method thereof. Background technique [0002] Wood-plastic composites (WPS for short) use thermoplastics, including polyethylene, polypropylene, polyvinyl chloride and their copolymers, as adhesives, and use wood powder such as wood, crop straw, The powder of agricultural plant shells is a composite material formed by extrusion, pressing or injection molding. [0003] However, the existing wood-plastic composite materials have the following disadvantages: poor biodegradability; poor mechanical properties such as bending strength, tensile strength, impact strength, etc.; poor heat resistance and the like. Contents of the invention [0004] Aiming at the above-mentioned deficiencies in the prior art, the present invention provides a wood-plastic composite material prepared from waste ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L51/00C08L23/06C08L91/06C08L75/04C08K13/02C08K3/04C08K5/526C08K5/12C08K5/10C08K5/524C08K5/134C08F289/00C08F220/14C08F220/18C08H8/00
CPCC08F289/00C08H8/00C08L51/00C08L2201/06C08L2201/08C08L2205/025C08L2205/03C08L2205/035C08L23/06C08L91/06C08K13/02C08K3/04C08K5/526C08K5/12C08L75/04C08K5/10C08K5/524C08K5/1345C08F220/18
Inventor 陈宝书赵天宝陈冠宇左龙陈智超
Owner XIHUA UNIV
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