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Injection molding foaming wood-plastic composite material and preparation process

A wood-plastic composite material, injection foaming technology, which is applied in the field of PVC composite material and its preparation technology, can solve the problems of environmental pollution, resource waste, and the large-scale utilization of natural plant fibers is not formed, and achieves the effect of high preparation process efficiency.

Inactive Publication Date: 2017-09-19
陈海银
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, natural plant fibers have not been utilized on a large scale, and wood powder is one of them. A large amount of wood powder is discarded, which not only causes waste of resources, but also causes serious environmental pollution.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0012] Injection foamed wood-plastic composite materials, including polypropylene PP, wood flour, azodicarbonamide (AC), low-density polyethylene (LDPE), maleic anhydride grafted polypropylene (MAPP), and ultrafine talc powder.

[0013] The preparation process of the above-mentioned injection-molded foamed wood-plastic composite material: first utilize an extruder to prepare wood-plastic pellets and foamed pellets; the formula of wood-plastic pellets is: wood powder 30%, polypropylene PP70%, maleic anhydride The branched polypropylene (MAPP) accounted for 20% of the wood flour; the granulation conditions were as follows: the die head temperature was 170 °C, the screw zone temperature was 180, 180, 180, and 175 °C in sequence, and the main screw speed was 60 r / min. The formula of the foamed pellets is 20% of azodicarbonamide (AC), 10% of ultra-fine talc powder, and 70% of low-density polyethylene (LDPE); the granulation conditions are: the temperature of the die head is 147°C, a...

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PUM

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Abstract

The invention discloses an injection molding foaming wood-plastic composite material which comprises PP (polypropylene), wood powder, AC (azodicarbonamide), LDPE (low density polyethylene), MAPP (maleic anhydride grafted polypropylene) and super-fine talcum powder. The invention further discloses an injection molding foaming wood-plastic composite material preparation process. The wood powder can be used on a large scale, and the preparation process is high in efficiency.

Description

technical field [0001] The invention relates to a polymer composite material and its preparation process, in particular to a PVC composite material and its preparation process. Background technique [0002] Over the past few decades, natural organic fillers consisting of wood-based materials (such as wood flour, cellulose fibers, etc.) and agricultural raw materials (such as jute, rice hulls, flax, hemp, etc.) . Natural Vegetable Fibers (NVF) is the most abundant resource in the world. The total amount of cellulose in NVF that grows and exists in nature every year can reach as high as 100 billion tons, far exceeding the total existing oil reserves on the earth. . However, natural plant fibers have not been utilized on a large scale, and wood powder is one of them. A large amount of wood powder is discarded, which not only causes waste of resources, but also causes serious environmental pollution. Contents of the invention [0003] Aiming at the deficiencies of the prior...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/12C08L97/02C08L51/06C08L23/06C08K3/34C08J9/10B29C47/92B29B9/06B29C45/78B29C45/76B29C48/92
CPCC08L23/12B29B9/06B29C45/76B29C45/78B29C48/92B29C2948/9258B29C2948/92704C08J9/103C08J2203/04C08J2323/06C08J2323/12C08J2497/02C08L23/06C08L2203/14C08L2205/035C08L2205/16C08L2207/066C08L97/02C08L51/06C08K3/34
Inventor 陈海银
Owner 陈海银
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