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Recycled ABS material, and preparation method and application thereof

A technology of ABS materials and raw materials, which is applied in the field of recycled ABS materials and its preparation, can solve problems such as light decomposition, heat, and improve ABS weather resistance, and achieve the goals of improving impact performance, repairing impact performance, improving weather resistance and aging resistance Effect

Active Publication Date: 2021-06-11
石家庄绿色再生资源有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the unsaturated double bond structure in the r-ABS polybutadiene rubber phase is still decomposed by heat and light during use, resulting in the failure of ABS to fundamentally improve the weather resistance of ABS

Method used

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  • Recycled ABS material, and preparation method and application thereof
  • Recycled ABS material, and preparation method and application thereof
  • Recycled ABS material, and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1-18

[0047] Preparation of recycled ABS materials, the preparation process flow chart is as follows figure 1 shown.

[0048] S1. ABS pretreatment: put the recycled ABS crushed material in an 80°C blast drying oven to dry for 3 hours, so that the water content of the ABS polymer is ≤0.1%; the recycled ABS crushed material has an irregular size of ≤5mm×5mm shape;

[0049] S2. Weigh the acrylate rubber powder, SAN resin, lubricant, antioxidant and coupling agent according to the formula ratio, put them into a high-speed batching machine and mix for 5 minutes to obtain a mixed batch;

[0050] S3. Mix the waste ABS particles with the mixed ingredients, put them into a high-speed batching machine and mix them for 3 minutes to obtain the mixed raw materials;

[0051] S4. The mixed raw materials enter the feeding system of the twin-screw extruder through the vacuum suction machine, and then carry out extrusion, traction, cooling, and pelletizing. The process parameters of the twin-screw ...

Embodiment 1

[0056] Example 17 is basically the same as Example 1, except that EBS lubricant, antioxidant 1076 and coupling agent KH-570 are used.

Embodiment 18

[0058] Example 18 is basically the same as Example 1, except that polyethylene wax is used as lubricant, antioxidant 2246 and titanate-201 coupling agent.

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PUM

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Abstract

The invention provides a recycled ABS (Acrylonitrile Butadiene Styrene) material and an application of a method in repairing a waste ABS material. The recycled ABS material is prepared from the following raw materials: waste ABS, acrylate rubber powder, SAN resin, a lubricant, an optional antioxidant and an optional coupling agent. By adopting the method disclosed by the invention, the impact resistance of the waste ABS can be effectively repaired, and the weather resistance and the aging resistance of the ABS are improved. The method not only solves the impact resistance reduction caused by ABS aging, but also improves the weather resistance and the aging resistance of the ABS substantially so as to improve the utilization rate and the use time of the waste ABS material greatly, has advantages of cost saving, safety and environmental protection, and has large promotion and application values.

Description

technical field [0001] The invention relates to the field of material preparation, in particular to a recycled ABS material and its preparation method and application. Background technique [0002] Styrenic plastic Acrylonitrile-butadiene-styrene plastic (ABS) is widely used in various electronic and electrical products because of its excellent mechanical properties and processing properties. However, during the use of ABS plastics, under the influence of environmental factors after long-term exposure to light, the unsaturated double bond structure in the ABS rubber phase will age and degrade, resulting in molecular chain breakage, a sharp decrease in molecular weight, rubber phase consumption, and the formation of hydroxyl groups. Oxygen-containing groups such as (-OH), carboxyl (-COOH), ketone, and aldehyde further trigger the degradation of styrene-acrylonitrile copolymer (SAN phase), which eventually leads to the deterioration of the mechanical properties of waste ABS. ...

Claims

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Application Information

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IPC IPC(8): C08L55/02C08L33/08C08L25/12
CPCC08L55/02C08L2201/08C08L2201/02C08L33/08C08L25/12Y02W30/62
Inventor 杨圣月罗云唐晓寒陈龙秦邦保冯乐斐
Owner 石家庄绿色再生资源有限公司