Electroplating PC/ABS alloy material and preparation method and application thereof

An alloy material and microsphere technology, applied in the field of electroplating PC/ABS alloy material and its preparation, can solve the problems of poor material strength and heat resistance, low material strength, low internal stress, etc. Excellent performance and the effect of reducing internal stress

Active Publication Date: 2018-01-05
WANHUA CHEM GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The Chinese invention patent "A Low Internal Stress Heat-Resisting ABS Resin and Its Preparation Method" (Patent No. CN105385058 A) mentions the compounding of low molecular weight SAN and high acrylonitrile content SAN resin (styrene-acrylonitrile resin), Improve the fluidity of the material and reduce the internal stress. Among them, if the content of low molecular weight SAN is too low, the fluidity will be poor; if it is too high, the material strength will be low; If it is too high, the fluidity will decrease, and the combination of the two cannot obtain high fluidity and low internal stress without reducing the strength

Method used

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  • Electroplating PC/ABS alloy material and preparation method and application thereof
  • Electroplating PC/ABS alloy material and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0073] It includes the following raw materials in weight ratio: PC-1: 30 parts, ABS-1: 65 parts, organic microsphere-1: 5 parts, antioxidant 0.3 part, lubricant 0.4 part. Put the material into the high mixer and mix for 5-10 minutes, then put it into the twin-screw extruder to extrude and granulate. After extrusion, dry at 70-90°C for 3-4 hours to fully remove moisture and optimize the injection molding process to reduce the internal stress of the product. Control the mold temperature to 70-90°C, barrel temperature to 220-280°C, and injection speed to 30-70mm / s, injection pressure 30-70bar.

Embodiment 2

[0075] It includes the following raw materials by weight: PC-1: 40 parts, ABS-1: 55 parts, organic microsphere-1: 5 parts, antioxidant 0.3 part, lubricant 0.4 part. Put the material into the high mixer and mix for 5-10 minutes, then put it into the twin-screw extruder to extrude and granulate. After extrusion, dry at 70-90°C for 3-4 hours to fully remove moisture and optimize the injection molding process to reduce the internal stress of the product. Control the mold temperature to 70-90°C, barrel temperature to 220-280°C, and injection speed to 30-70mm / s, injection pressure 30-70bar.

Embodiment 3

[0077] It includes the following raw materials by weight: PC-1: 50 parts, ABS-1: 45 parts, organic microsphere-1: 5 parts, antioxidant 0.3 part, lubricant 0.4 part. Put the material into the high mixer and mix for 5-10 minutes, then put it into the twin-screw extruder to extrude and granulate. After extrusion, dry at 70-90°C for 3-4 hours to fully remove moisture and optimize the injection molding process to reduce the internal stress of the product. Control the mold temperature to 70-90°C, barrel temperature to 220-280°C, and injection speed to 30-70mm / s, injection pressure 30-70bar.

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Abstract

The invention provides an electroplating PC/ABS alloy material and a preparation method and application thereof. The PC/ABS alloy material comprises, by weight, 25-85 parts of polycarbonate (PC), 15-75 parts of styrene-butadiene-acrylonitrile copolymer (ABS), 0.1-20 parts of organic microspheres and 0-3 parts of additive. In the preparation process, PC, ABS, the organic microspheres and other additives are added into a high-speed mixer to be uniformly mixed and then added into a double-screw extruder together for extrusion, and granulation is carried out through a granulator. The method is simple and feasible; the organic microspheres are added, and on the premise that the strength of a matrix is guaranteed, the flowability of the PC/ABS alloy material is improved, the internal stress of the material is reduced, and the electroplating qualified rate and the pass percentage of cold and hot cycling are increased; besides, the organic microspheres can be subjected to coarsening and etching together with a rubber phase, more etching points are provided, and better electroplating performance is obtained.

Description

technical field [0001] The invention belongs to the field of polymer composite materials, and relates to an electroplating PC / ABS alloy material and its preparation method and application, in particular to the field of low internal stress electroplating PC / ABS materials. Background technique [0002] Polycarbonate PC has the advantages of high impact strength, high light transmittance, excellent mechanical properties, good heat resistance, flame retardancy, and good dimensional stability. It is widely used in automobiles, electronic appliances, construction and other industries, but it also has some Disadvantages, such as high melt viscosity and large residual internal stress, lead to stress cracking and notch sensitivity. [0003] ABS is mainly composed of graft copolymers (polybutadiene as the main chain, styrene-acrylonitrile unbranched copolymers), copolymers of styrene and acrylonitrile, and ungrafted polybutadiene. Fluidity and impact resistance, the blending of ABS a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L69/00C08L55/02C08L61/28C08L61/26C08L33/12C08L25/04
Inventor 张钊潘勇军黄岐善翟志斌
Owner WANHUA CHEM GRP CO LTD
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