PE (polyethylene) wood-plastic composite material with high modulus

A wood-plastic composite material and polyethylene technology, applied in the field of wood-plastic composite materials, can solve the problems of low modulus, limit the mechanical strength of wood-plastic composite materials, affect the use of polyethylene wood-plastic composite materials, etc., and achieve high product modulus , the effect of superior performance

Active Publication Date: 2016-03-16
无锡啄木鸟环保建材有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Existing polyethylene wood-plastic composite materials have developed into the largest wood-plastic composite material species in the world, but problems such as low modulus and prone to creep after a long period of use have become increasingly prominent, affecting polyethylene wood-plastic composite materials. use of composite materials
The compatibility problem between wood powder, glass fiber and plastic limits the further improvement of the mechanical strength of wood-plastic composite materials

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] A kind of high modulus polyethylene wood-plastic composite material of the present invention, by weight, it comprises the following components,

[0029] (1) 35 parts of wood flour;

[0030] (2) 24 parts of PE plastic alloy;

[0031] (3) 13 parts of calcium carbonate;

[0032] (4) 22 parts of chopped glass fiber;

[0033] (5) 2 parts of maleic anhydride grafted polyethylene;

[0034] (6) 3 parts of silane coupling agent;

[0035] (7) 1.5 parts of lubricant;

[0036] (8) 1 part of antioxidant;

[0037] Its preparation method is, it comprises the following steps,

[0038] (1) Add wood powder into the high-speed mixer, slowly and gradually add 50% silane coupling agent, mix at high speed until the material temperature reaches 120°C, then add 50% maleic anhydride grafted polyethylene, and mix at high speed to 200°C Post-mixing and plasticizing to obtain wood powder double-modified by silane maleic anhydride grafted polyethylene;

[0039] (2) Add chopped glass fiber t...

Embodiment 2

[0049] A kind of high modulus polyethylene wood-plastic composite material of the present invention, by weight, it comprises the following components,

[0050] (1) 40 parts of wood flour;

[0051] (2) 26 parts of PE plastic alloy;

[0052] (3) 16 parts of calcium carbonate;

[0053] (4) 24 parts of chopped glass fiber;

[0054] (5) 3 parts of maleic anhydride grafted polyethylene;

[0055] (6) 4 parts of silane coupling agent;

[0056] (7) 2 parts of lubricant;

[0057] (8) 2 parts of antioxidant;

[0058] Its preparation method is, it comprises the following steps,

[0059] (1) Add wood powder into the high-speed mixer, slowly and gradually add 50% silane coupling agent, mix at high speed until the material temperature reaches 120°C, then add 50% maleic anhydride grafted polyethylene, and mix at high speed to 200°C Post-mixing and plasticizing to obtain wood powder double-modified by silane maleic anhydride grafted polyethylene;

[0060] (2) Add the chopped glass fibe...

Embodiment 3

[0070]A kind of high modulus polyethylene wood-plastic composite material of the present invention, by weight, it comprises the following components,

[0071] (1) 45 parts of wood flour;

[0072] (2) 28 parts of PE plastic alloy;

[0073] (3) 18 parts of calcium carbonate;

[0074] (4) 28 parts of chopped glass fiber;

[0075] (5) 4 parts of maleic anhydride grafted polyethylene;

[0076] (6) 2 parts of silane coupling agent;

[0077] (7) 2.5 parts of lubricant;

[0078] (8) 3 parts of antioxidant;

[0079] Its preparation method is, it comprises the following steps,

[0080] (1) Add wood powder into the high-speed mixer, slowly and gradually add 50% silane coupling agent, mix at high speed until the material temperature reaches 120°C, then add 50% maleic anhydride grafted polyethylene, and mix at high speed to 200°C Post-mixing and plasticizing to obtain wood powder double-modified by silane maleic anhydride grafted polyethylene;

[0081] (2) Add chopped glass fiber t...

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Abstract

The invention relates to a PE (polyethylene) wood-plastic composite material with the high modulus. The PE wood-plastic composite material comprises components in parts by weight as follows: 30-50 parts of wood meal, 20-30 parts of a PE plastic alloy, 10-20 parts of calcium carbonate, 20-30 parts of chopped glass fibers, 1-5 parts of maleic anhydride grafted PE, 1-5 parts of a silane coupling agent, 1-3 parts of a lubricant and 1-3 parts of an antioxidant. A preparation method of the PE wood-plastic composite material comprises steps as follows: the modified glass fibers, the modified wood meal, the PE plastic alloy, the calcium carbonate, 50% of the maleic anhydride grafted PE, the lubricant and the antioxidant are added to a high-speed mixer in proportion to be evenly mixed, granulated, extruded and molded, and a wood-plastic composite material profile is obtained.

Description

technical field [0001] The invention relates to a wood-plastic composite material, in particular to a high-modulus wood-plastic composite material. Background technique [0002] Existing polyethylene wood-plastic composite materials have developed into the largest wood-plastic composite material species in the world, but problems such as low modulus and prone to creep after a long period of use have become increasingly prominent, affecting polyethylene wood-plastic composite materials. Use of composite materials. The compatibility problem between wood powder, glass fiber and plastic limits the further improvement of the mechanical strength of wood-plastic composites. Contents of the invention [0003] Purpose of the invention: The purpose of the present invention is to provide a polyethylene wood-plastic composite material with high modulus, high strength, no creep and long service life mainly for the deficiencies in the prior art. [0004] Technical solution: In order t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L97/02C08L23/06C08L77/02C08L77/06C08L67/02C08L51/06C08K13/06C08K9/06C08K7/14C08K3/26
CPCC08L97/02C08L2205/035C08L23/06C08L77/02C08L77/06C08L67/02C08L51/06C08K13/06C08K9/06C08K7/14C08K2003/265
Inventor 张清锋
Owner 无锡啄木鸟环保建材有限公司
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