A kind of odor-suppressing waste circuit board powder filled waste ABS regeneration composite material and its preparation method

A technology of composite materials and waste circuit boards, which is applied in the field of recycled composite materials, can solve problems such as restricting the scope of application, and achieve the effects of broad application prospects, improvement of difficult processing, and excellent comprehensive performance

Active Publication Date: 2019-03-26
CHINA NAT ELECTRIC APP RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This has almost become the "main subjective factor" affecting the civilian use of waste circuit board non-metallic material-based recycled composite materials, seriously restricting its application range

Method used

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  • A kind of odor-suppressing waste circuit board powder filled waste ABS regeneration composite material and its preparation method

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0023] The waste circuit board is crushed and sieved to obtain a powder with a mesh size of more than 100. Then through static electricity and air separation, metal and non-metal powders are separated, and the non-metal powders are dried for use.

[0024] Zinc oxide, diatomaceous earth and zeolite are used as the odor inhibitor in a weight percentage ratio of 1:1:1. The pore size of zeolite is 0.3-1.0 nanometers. The preparation process of the odor inhibitor is as follows: activate the zinc oxide, diatomaceous earth and zeolite in a muffle furnace at 500° C. for 3 hours, take them out and place them in an odorless oven to cool for later use.

[0025] Mix the materials according to the following proportions by weight: 100 parts of waste ABS, 20 parts of non-metallic powder of waste circuit boards, 1 part of antioxidant, and 1 part of odor inhibitor. Wherein the antioxidant consists of tetrakis [β-(3,5-di-tert-butyl-4-hydroxyphenyl) propionate] pentaerythritol ester and tris (...

example 2

[0029] The preparation method and steps are the same as in Example 1, and the material ratio is changed as follows: 100 parts of waste ABS, 50 parts of non-metallic powder of waste circuit board, 2 parts of antioxidant, and 3 parts of odor inhibitor.

[0030] Wherein the antioxidant consists of tetrakis [β-(3,5-di-tert-butyl-4-hydroxyphenyl) propionate] pentaerythritol ester and tris (2,4-di-tert-butylphenyl) phosphite in a ratio of 1: 3 compounded.

[0031] Among them, the odor inhibitor is compounded by zinc oxide, aluminum oxide, diatomaceous earth and zeolite at a weight ratio of 0.5:0.5:1:1.

example 3

[0033] The preparation method and steps are the same as in Example 1, and the material ratio is changed as follows: 100 parts of waste ABS, 100 parts of non-metallic powder of waste circuit board, 1 part of antioxidant, and 5 parts of odor inhibitor.

[0034] Wherein the antioxidant consists of tetrakis [β-(3,5-di-tert-butyl-4-hydroxyphenyl) propionate] pentaerythritol ester and tris (2,4-di-tert-butylphenyl) phosphite in a ratio of 1: 1 compounded.

[0035] The odor inhibitor is compounded by zinc oxide, aluminum oxide, magnesium oxide, diatomaceous earth and zeolite at a weight ratio of 0.5:0.25:0.25:1:1.

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Abstract

The invention discloses an odor inhibition type waste circuit board powder filled waste ABS (acrylonitrile-butadiene-styrene copolymer) recycled composite material and a preparation method. The recycled composite material comprises the following raw materials in parts by weight: 100 parts of waste ABS, 20-100 parts of waste printed circuit board powder, 1-2 parts of antioxidant and 1-5 parts of odor inhibitor. The preparation method is characterized by uniformly mixing the raw materials in proportion, controlling the processing temperature zone at 190-200 DEG C and controlling the screw revolution not to exceed 240r / min, carrying out melting on a twin-screw extruder and carrying out traction, cooling and granulation, thus preparing the odor inhibition type recycled composite material. The recycled composite material has excellent comprehensive properties, also solves the key problem of strong odorizing property affecting wide application of the recycled composite material, has the effect of changing the current situation that waste circuit board non-metallic materials are difficult to utilize efficiently, has economical efficiency and recyclability and has obvious economic, social and environmental benefits.

Description

technical field [0001] The invention belongs to the technical field of recycled composite materials, and in particular relates to an odor-suppressing waste circuit board non-metallic powder filled waste ABS recycled composite material and a preparation method thereof. Background technique [0002] my country is the world's largest producer of circuit boards, and its output ranks first in the world. According to statistics, my country's circuit board manufacturers produce more than 400,000 tons of waste every year, plus the waste circuit boards produced by the dismantling of domestic scrapped electronic products and a large number of imported waste electrical products. It is conservatively estimated that the total amount far exceeds one million tons. . Therefore, environmentally friendly and reliable recycling of waste circuit boards can save resources on the one hand and reduce environmental pollution on the other hand, which is an important basic condition for the developme...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L55/02C08K13/06C08K9/00C08K5/134C08K5/526C08K3/22C08K3/34B29C48/92
Inventor 曹诺符永高王玲胡嘉琦万超邓梅玲杜彬王鹏程韩文生刘阳周斌
Owner CHINA NAT ELECTRIC APP RES INST
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