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Acrylonitrile-butadiene-styrene copolymer composite material and preparation method

A styrene copolymer and composite material technology, applied in the field of polymer materials, can solve the problems of uneven distribution, limited application of ABS alloy materials, poor gloss and tensile strength of alloy products, and achieve uniform distribution and improved interface. Compatibility, good toughness effect

Active Publication Date: 2013-05-15
滁州格美特科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Applied in the field of instruments and meters In the system of ABS alloy materials, ABS and PMMA are partially compatible systems, direct modification and granulation will easily cause uneven distribution of the two, resulting in poor gloss and tensile strength of alloy products, so Greatly limit the application of ABS alloy materials in the field of instrumentation

Method used

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  • Acrylonitrile-butadiene-styrene copolymer composite material and preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Weigh 50 parts of ABS and 65 parts of PMMA, add 0.8 parts of EMA after mixing, then mix evenly in a high-speed mixer, transfer to a twin-screw extruder to melt and blend at 180-220°C, pressure 60-80MPa, speed 700r / min , The material stays for 2 minutes, discharged, cooled, dried, and pelletized after extrusion to obtain the finished product. The average molecular weight of ABS is 100,000, the average molecular weight of PMMA is 80,000, and the number average particle size of EMA is 0.4 microns.

Embodiment 2

[0026] Weigh 80 parts of ABS, 25 parts of PMMA, add 2 parts of EMA after mixing, then mix evenly in a high-speed mixer, transfer to a twin-screw extruder to melt and blend at 180-220°C, pressure 60-80MPa, speed 700r / min , The material stays for 2 minutes, discharged, cooled, dried, and pelletized after extrusion to obtain the finished product. The average molecular weight of ABS is 150,000, the average molecular weight of PMMA is 150,000, and the number average particle size of EMA is 0.3 microns.

Embodiment 3

[0028] Weigh 80 parts of ABS and 45 parts of PMMA, add 0.1 part of EMA after mixing, then mix evenly in a high-speed mixer, transfer to a twin-screw extruder to melt and blend at 180-220°C, pressure 60-80MPa, speed 700r / min , The material stays for 2 minutes, discharged, cooled, dried, and pelletized after extrusion to obtain the finished product. The average molecular weight of ABS is 150,000, the average molecular weight of PMMA is 200,000, and the number average particle size of EMA is 0.1 microns.

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Abstract

The invention discloses an ABS (acrylonitrile-butadiene-styrene) composite material, which is prepared from 50-80 parts by weight of acrylonitrile-butadiene-styrene (ABS) resin, 25-65 parts by weight of polymethyl methacrylate (PMMA) and 0.1-10 parts by weight of an ethylene-methacrylate (EMA) copolymer. The invention also discloses a preparation method of the ABS composite material. The ABS composite material prepared by the invention has good glossiness, interfacial compatibility and toughness. The adding of EMA makes the ABS and PMMA systems uniformly distributed. Meanwhile, the EMA is spherically dispersed in the ABS composite system, plays a stress concentration role, and endows the ABS composite material with good toughness. Thus, the ABS composite material can be widely used in various molding products, especially in products with glossiness and scratch resistance requirements in the instrument and meter industry.

Description

[0001] technical field [0002] The invention relates to the technical field of polymer materials, in particular to an acrylonitrile-butadiene-styrene copolymer composite material and a preparation method. [0003] Background technique [0004] Acrylonitrile-butadiene-styrene copolymer (ABS) is an engineering plastic with excellent comprehensive properties. It can still maintain high impact strength at -40°C. At the same time, it has good dimensional stability, good insulation, wear resistance, Oil resistant, widely used in instruments, meters and other fields. However, pure ABS has some defects, such as high melt glaze, poor fluidity, poor thermal stability and weather resistance, and low hardness, which limits its further application. [0005] Polymethyl methacrylate (PMMA) is a thermoplastic with good optical properties, excellent weather resistance, high surface hardness and good mechanical strength, but its impact strength is not high. The study found that the ABS / PM...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L55/02C08L33/12C08L23/08
Inventor 杨桂生刘凯
Owner 滁州格美特科技有限公司
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