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Regenerated ABS composite material and preparation method thereof

A composite material and raw material technology, applied in the field of recycled ABS composite materials and its preparation, can solve the problems of poor aging resistance of polybutadiene components, no obvious improvement in material color, easy discoloration and yellowing properties, etc. performance, improved recycling value, good stiffness and flow properties

Active Publication Date: 2022-07-15
宁波坚锋新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It is precisely because of this structure that it also brings obvious disadvantages to ABS resin: the polybutadiene component has poor aging resistance, so ABS resin products are prone to discoloration, yellowing and performance degradation during use. Through melt extrusion, the color will further yellow under the action of hot oxygen water, and the performance will decrease again
This invention uses chain extenders to repair waste ABS, mainly to repair its impact and tensile strength properties, but it does not significantly improve the color of the material

Method used

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  • Regenerated ABS composite material and preparation method thereof
  • Regenerated ABS composite material and preparation method thereof
  • Regenerated ABS composite material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] S1. The following mass percentage of raw materials are prepared: 83.8% ABS recycled material, 10% AS recycled material, 5% high rubber powder, 0.4% silicon-based aging repairing agent, 0.3% antioxidant, 0.5% fumed silica;

[0033] The ABS recycled material is the natural ABS fragments with an average diameter of 10mm prepared by sorting, crushing, cleaning and drying. The ABS recycled material comes from the ABS natural color pipe recycling factory;

[0034] The AS recycled material is pure transparent AS fragments with an average diameter of 12mm prepared by sorting, crushing, cleaning and drying. The AS recycled material comes from the AS drawer recycling factory;

[0035] The high rubber powder is a core-shell polymer of styrene and acrylonitrile-butadiene rubber with a mass ratio of 1:2, and the rubber content is 60%;

[0036] Silicon-based aging repairing agent is a polysiloxane containing two hydroxyl ends;

[0037] Fumed silica was purchased from Shandong Aochua...

Embodiment 2

[0043] S1. The following mass percentage of raw materials are prepared: 97.5% ABS recycled material, 1% AS recycled material, 1% high rubber powder, 0.1% silicon-based aging repairing agent, 0.3% antioxidant, 0.1% fumed silica;

[0044] The ABS recycled material is the natural ABS fragments with an average diameter of 10mm prepared by sorting, crushing, cleaning and drying. The ABS recycled material comes from the ABS natural color pipe recycling factory;

[0045] The AS recycled material is pure transparent AS fragments with an average diameter of 12mm prepared by sorting, crushing, cleaning and drying. The AS recycled material comes from the AS drawer recycling factory;

[0046] The high rubber powder is a core-shell polymer of styrene and acrylonitrile-butadiene rubber with a mass ratio of 1:2, and the rubber content is 60%;

[0047] Silicon-based aging repairing agent is a polysiloxane containing two hydroxyl ends;

[0048] Fumed silica is fumed silica from Shandong Aochu...

Embodiment 3

[0054] S1. The following mass percentage of raw materials are prepared: 74.7% ABS recycled material, 10% AS recycled material, 5% high rubber powder, 5% silicon-based aging repairing agent, 0.3% antioxidant, 5% fumed silica;

[0055] The ABS recycled material is the natural ABS fragments with an average diameter of 10mm prepared by sorting, crushing, cleaning and drying. The ABS recycled material comes from the ABS natural color pipe recycling factory;

[0056] The AS recycled material is pure transparent AS fragments with an average diameter of 12mm prepared by sorting, crushing, cleaning and drying. The AS recycled material comes from the AS drawer recycling factory;

[0057] The high rubber powder is a core-shell polymer of styrene and acrylonitrile-butadiene rubber with a mass ratio of 1:2, and the rubber content is 60%;

[0058] Silicon-based aging repairing agent is a polysiloxane containing two hydroxyl ends;

[0059] Fumed silica is fumed silica from Shandong Aochuang...

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Abstract

The invention belongs to the technical field of ABS (Acrylonitrile Butadiene Styrene) preparation, and particularly relates to a regenerated ABS composite material and a preparation method thereof. According to the regenerated ABS composite material, the regenerated AS is added and serves as a matrix resin phase to provide good rigidity and flowing performance for the ABS regenerated composite material, the high rubber powder serves as a rubber phase to provide good impact and breaking elongation performance for the ABS material, and the mechanical property of the material is effectively improved by adding polysiloxane; in addition, the yellow phase and the red phase of the material are reduced, the original color is recovered, and the problem that the color of the waste ABS material becomes yellow is solved. The raw materials in the whole formula are simple and easy to obtain, the preparation efficiency is high, the method is suitable for large-scale industrial production, the recovery value of the waste ABS material is greatly improved, and the cost for preparing the ABS material is greatly reduced.

Description

technical field [0001] The invention belongs to the technical field of ABS preparation, in particular to a recycled ABS composite material and a preparation method thereof. Background technique [0002] ABS resin is one of the five general-purpose plastics and has a wide range of uses. Compared with other general-purpose plastics, ABS resin has good flow, rigidity and other properties and excellent appearance quality. This is determined by the structure and composition of ABS resin, which is copolymerized by three monomers of acrylonitrile, butadiene and styrene. Styrene monomer provides excellent flow properties, acrylonitrile monomer provides rigidity and chemical resistance, and butadiene monomer provides toughness. It is precisely because of this structure that it also brings obvious shortcomings to ABS resin: the polybutadiene component has poor aging resistance, so ABS resin products are prone to discoloration and yellowing and performance degradation during the use ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L55/02C08L25/12C08L83/04C08K3/36
CPCC08L55/02C08L25/12C08L83/04C08K3/36
Inventor 吴剑波麻一明陈宁
Owner 宁波坚锋新材料有限公司
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