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Lightened PC/ABS (Polycarbonate/Acrylonitrile Butadiene Styrene) micro foaming composite material and preparation method thereof

A composite material and micro-foaming technology, applied in the field of lightweight PC/ABS micro-foaming composite material and its preparation, can solve the problems of restricting the application field of PC/ABS, reducing the performance of PC/ABS foaming alloy, etc. Interfacial interaction, the effect of inhibiting degradation

Active Publication Date: 2018-04-20
ORINKO NEW MATERIAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As a typical and commonly used inorganic heat-absorbing foaming agent, sodium bicarbonate has a large amount of gas generation, cheap raw materials, and environmental protection. It has been widely used in the rubber and plastic industry. Sodium, carbon dioxide and water, and PC is extremely sensitive to trace moisture during high-temperature processing, which will lead to the degradation of PC molecular chains, reduce the performance of PC / ABS foam alloys, and restrict the application field of PC / ABS

Method used

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  • Lightened PC/ABS (Polycarbonate/Acrylonitrile Butadiene Styrene) micro foaming composite material and preparation method thereof
  • Lightened PC/ABS (Polycarbonate/Acrylonitrile Butadiene Styrene) micro foaming composite material and preparation method thereof
  • Lightened PC/ABS (Polycarbonate/Acrylonitrile Butadiene Styrene) micro foaming composite material and preparation method thereof

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preparation example Construction

[0030] The present invention also provides a kind of preparation method of described lightweight PC / ABS micro-foaming composite material, comprises the following steps:

[0031] (1) stirring and mixing the molecular sieve and the silane coupling agent in an organic solvent at 60-80° C. for 24-48 hours to obtain a modified molecular sieve;

[0032] (2) After mixing the modified molecular sieve, polycarbonate, acrylonitrile-butadiene-styrene copolymer, styrene-acrylonitrile-GMA, antioxidant, lubricant and additives evenly, put them into twin-screw extrusion In the machine, carry out melt extrusion and granulation to obtain PC / ABS alloy material;

[0033] (3) Mix the PC / ABS alloy material and the chemical foaming agent evenly, put it into the hopper of the injection molding machine, and perform secondary mold opening and injection molding to obtain a lightweight PC / ABS micro-foaming composite material.

[0034] Under preferred conditions, in step (2), the present invention has n...

Embodiment 1

[0039] A lightweight PC / ABS micro-foaming composite material, made of the following substances:

[0040]

[0041] The preparation method of described lightweight PC / ABS microfoam composite material, the steps are as follows:

[0042] (1) Stir and mix 2 parts by weight of 13X molecular sieve and 0.2 parts by weight of silane coupling agent KH570 in 200 mL of ethanol at 60°C for 48 hours, then centrifuge and wash with ethanol for 3 times, and dry the product at 50°C for 36 hours under vacuum , to obtain a modified molecular sieve;

[0043] (2) Modified molecular sieves, 25 parts by weight of PC 1225L, 75 parts by weight of ABS (MG94), 2 parts by weight of styrene-acrylonitrile-GMA (SAG-005), 0.1 parts by weight of antioxidant 1010, 0.1 parts by weight of anti-oxidant Oxygen agent 168 and 0.5 parts by weight of lubricant PE wax are evenly mixed, put into the hopper of an injection molding machine, melt extruded and granulated to obtain a PC / ABS alloy material, wherein the melt ...

Embodiment 2

[0046] A lightweight PC / ABS micro-foaming composite material, made of the following substances:

[0047]

[0048] The preparation method of described lightweight PC / ABS microfoam composite material, the steps are as follows:

[0049] (1) Stir and mix 4 parts by weight of 13X molecular sieve and 0.4 parts by weight of silane coupling agent KH570 in 200 mL of ethanol at 70°C for 36 hours, then centrifuge and wash with ethanol for 3 times, and dry the product at 50°C for 36 hours under vacuum , to obtain a modified molecular sieve;

[0050] (2) The modified molecular sieve, 65 parts by weight of PC 1225L, 35 parts by weight of ABS, 4 parts by weight of styrene-acrylonitrile-GMA (SAG-005), 0.15 parts by weight of antioxidant 1010, and 0.15 parts by weight of antioxidant 168 , 1 part by weight of PE wax is mixed evenly, put into a twin-screw extruder, carry out melt extrusion and granulation, and obtain the PC / ABS alloy material, wherein the melt extrusion process is: the extru...

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Abstract

The invention relates to the technical field of high polymer materials and in particular relates to a lightened PC / ABS (Polycarbonate / Acrylonitrile Butadiene Styrene) micro foaming composite materialand a preparation method thereof. The lightened PC / ABS micro foaming composite material is made of a raw material composition, wherein the raw material composition comprises the following components in parts by weight: 25-65 parts of polycarbonate, 35-75 parts of a acrylonitrile butadiene styrene copolymer, 2-5 parts of a compatilizer, 0.2-0.4 part of an antioxidant, 0.5-1 part of a lubricant and0-2 parts of optional aids. The PC / ABS micro foaming composite material provided by the invention has the characteristics of being low in density and excellent in mechanical strength, and can be widely applied to automobile inner and outer decorative products of automobile door handles, hidden current plates, steering column protection sleeves, decorative covers, reflection mirror shells, and thelike.

Description

technical field [0001] The invention relates to the technical field of polymer materials, in particular to a lightweight PC / ABS micro-foaming composite material and a preparation method thereof. Background technique [0002] Polycarbonate (PC) has the advantages of high toughness, high strength, corrosion resistance, electrical insulation, etc., but also has the disadvantages of high melt viscosity, poor fluidity, and low notched impact strength. Acrylonitrile-butadiene-styrene copolymer (ABS) has the advantages of high strength, good toughness, and easy processing and molding. It has disadvantages such as poor heat resistance and weather resistance, poor mechanical properties, and flammability. After melt blending of ABS and PC, the advantages of both can be taken into account, giving composite The material has excellent mechanical properties, good heat resistance and weather resistance, and good processing fluidity. It is an ideal material for manufacturing automobile dash...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L69/00C08L55/02C08L25/14C08K13/06C08K9/06C08K7/26C08J9/08
CPCC08J9/0061C08J9/009C08J9/0095C08J9/08C08J2203/02C08J2205/044C08J2369/00C08J2425/14C08J2455/02
Inventor 李卫石阳阳魏子芳任东方王广敬李荣群
Owner ORINKO NEW MATERIAL CO LTD