Non-electroplated PC/ABS (Polycarbonate/Acrylonitrile Butadiene Styrene) alloy material suitable for two-color injection molding and preparation method thereof

A technology of two-color injection molding and alloy materials, which is applied in the field of polymer materials, can solve problems such as fracture, poor fluidity, and stress cracking, and achieve the effects of improving reaction efficiency, good application prospects, and improving the degree of reaction

Active Publication Date: 2017-05-17
SHANGHAI KUMHO SUNNY PLASTICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Usually, PC is often selected as the non-plating part of plastic in double-color electroplating, but due to the poor fluidity of PC itself, the internal stress of the injection molded part is concentrated, and stress cracking often occurs due to environmental influences during use.
At the same time, PC itself has notch and thickness sensitivity. For parts with different thicknesses and many stuck corners, fracture problems often occur during use, which greatly affects its application.

Method used

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  • Non-electroplated PC/ABS (Polycarbonate/Acrylonitrile Butadiene Styrene) alloy material suitable for two-color injection molding and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] The present embodiment is applicable to the electroless PC / ABS alloy material of two-color injection molding and preparation method thereof, and this method comprises the following steps:

[0046] (1) Weigh each component by weight: PC resin: 35 parts, ABS high rubber powder: 40 parts; compatibilizer: 25 parts; initiator: 0.1 part; antioxidant 1076: 0.1 part, antioxidant 168: 0.1 part, lubricant PETS: 0.1 part.

[0047] (2) Feed the raw materials from the feeding port, melt and extrude at 200-270°C, the diameter of the screw extruder is 35mm, the aspect ratio is 32, the rotation speed is 500rpm, and the pressure is 2MPa. After melt extrusion, the obtained High rubber powder masterbatch.

[0048] (3) Weigh each component by weight: PC resin: 55 parts, high rubber powder masterbatch: 30 parts, SAN resin: 15 parts; antioxidant 1076: 0.1 part, antioxidant 168: 0.1 part, lubrication Agent PETS: 0.1 parts.

[0049] (4) Feed the raw materials from the feeding port, melt and e...

Embodiment 2

[0052] An electroless PC / ABS alloy material suitable for two-color injection molding and a preparation method thereof, the method comprising the following steps:

[0053] (1) Weigh each component by weight: PC resin: 35 parts, ABS high rubber powder: 40 parts; compatibilizer: 25 parts; initiator: 0.5 part; antioxidant 1076: 0.1 part, antioxidant 168: 0.1 part, lubricant PETS: 0.1 part.

[0054] (2) Feed the raw materials from the feeding port, melt and extrude at 200-270°C, the diameter of the screw extruder is 58mm, the aspect ratio is 60, the rotation speed is 500rpm, and the pressure is 2MPa. After melt extrusion, the obtained High rubber powder masterbatch.

[0055] (3) Weigh each component by weight: PC resin: 55 parts, high rubber powder masterbatch: 30 parts, SAN resin: 15 parts; antioxidant 1076: 0.1 part, antioxidant 168: 0.1 part, lubrication Agent PETS: 0.1 parts.

[0056] (4) Feed the raw materials from the feeding port, melt and extrude at 200-270°C, the diamet...

Embodiment 3

[0059] The present embodiment is applicable to the electroless PC / ABS alloy material of two-color injection molding and preparation method thereof, and this method comprises the following steps:

[0060] (1) Weigh each component by weight: PC resin: 35 parts, ABS high rubber powder: 40 parts; compatibilizer: 25 parts; antioxidant 1076: 0.1 part, antioxidant 168: 0.1 part, lubricating Agent PETS: 0.1 part.

[0061] (2) Feed the raw materials from the feeding port, melt and extrude at 200-270°C, the diameter of the screw extruder is 58mm, the aspect ratio is 60, the rotation speed is 500rpm, and the pressure is 2MPa. After melt extrusion, the obtained High rubber powder masterbatch.

[0062] (3) Weigh each component by weight: PC resin: 60 parts, high rubber powder masterbatch: 25 parts, SAN resin: 15 parts; antioxidant 1076: 0.1 part, antioxidant 168: 0.1 part, lubrication Agent PETS: 0.1 parts.

[0063] (4) Feed the raw materials from the feeding port, melt and extrude at 2...

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Abstract

The invention relates to a non-electroplated PC/ABS (Polycarbonate/Acrylonitrile Butadiene Styrene) alloy material suitable for two-color injection molding and a preparation method thereof. The non-electroplated PC/ABS alloy material is prepared from the following components in parts by weight: 40 to 65 parts of PC resin, 25 to 45 parts of high rubber powder masterbatch, 10 to 25 parts of SAN (Styrene-acrylonitrile) resin, 0.1 to 1 part of antioxidant and 0.1 to 1 part of lubricant, wherein the high rubber powder masterbatch is prepared from the following components in parts by weight: 30 to 50 parts of PC resin, 30 to 50 parts of ABS high rubber powder, 10 to 30 parts of compatibilizer, 0.1 to 0.5 part of initiator, 0.1 to 1 part of the antioxidant and 0.1 to 1 part of the lubricant. Compared with the prior art, the non-electroplated PC/ABS alloy material provided by the invention adopts a reactive extrusion method to obtain strong shear by an extruder and screw combination with a large aspect ratio, and prepare high rubber powder masterbatch coated with PC on the rubber surface; by utilizing acid resistance and hydrophobicity of PC, the situation that the rubber phase is prevented from being etched by a roughing solution is ensured during electroplating, and the application prospects are very good.

Description

technical field [0001] The invention belongs to the technical field of polymer materials, and relates to an electroless PC / ABS alloy material suitable for two-color injection molding and a preparation method thereof. Background technique [0002] Two-color injection molding mainly uses two material tubes of a two-color molding machine and two sets of molds to obtain products through two moldings in sequence. Thanks to the diversified design advantages of two-color injection molding products, it has been widely used in almost all plastic fields such as electronic products, electric tools, medical products, home appliances, and toys. [0003] Two-color injection molding can achieve the effect of local electroplating. Two materials can be used, such as PC that cannot be electroplated, and electroplating-grade ABS that can be electroplated. The two materials are injected into the mold one after another, and then electroplated after molding. Usually, PC is often selected as the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L69/00C08L55/02C08L25/12C08L51/00C08J3/22B29C47/92B29C48/92
CPCB29C48/92B29C2948/9259B29C2948/92619B29C2948/92704C08J3/226C08J2369/00C08J2455/02C08J2469/00C08L69/00C08L2205/025C08L2205/035C08L2312/00C08L55/02C08L25/12C08L51/003
Inventor 王尧李强罗明华辛敏琦
Owner SHANGHAI KUMHO SUNNY PLASTICS
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