Low-smoke-density PC/ABS composition and preparation method thereof

A technology of smoke density and composition, which is applied in the field of low smoke density PC/ABS composition and its preparation, can solve the problems of material cracking or fracture, great influence on impact strength, and poor physical properties of PC/ABS alloy materials, and achieve low The effect of smell

Active Publication Date: 2021-05-28
SHANGHAI KUMHO SUNNY PLASTICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the physical properties of the PC / ABS alloy material prepared by the author according to this technical scheme are very poor, which has a great influence on the impact strength, and the material has the risk of cracking or breaking during actual use.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] This embodiment provides a low-smoke density PC / ABS composition and a preparation method thereof, the method comprising the following steps:

[0045] (1) Weigh each component by weight: PC is PC-1220: 60 parts, ABS8434: 40 parts, porous ceramics is Al 2 o 3 Nano ceramics: 5 parts, antioxidant 1010: 0.1, antioxidant 168: 0.1, lubricant PETS: 0.3.

[0046] (2) After mixing all the raw materials evenly, feed them from the feeding port of the extruder, melt and extrude at 220-260°C, the screw extruder speed is 500rpm, the pressure is 2MPa, after melt extrusion, granulation is get the product.

Embodiment 2

[0048] This embodiment provides a low-smoke density PC / ABS composition and a preparation method thereof, the method comprising the following steps:

[0049] (1) Weigh each component by weight: PC is L1250Y: 80 parts, ABS8434: 20 parts, porous ceramics is Al 2 o 3 Nano ceramic: 5 parts, antioxidant 1010: 0.1 part, antioxidant 168: 0.1 part, lubricant PETS: 0.3 part.

[0050] (2) After mixing all the raw materials evenly, feed them from the feeding port of the extruder, melt and extrude at 220-260°C, the screw extruder speed is 500rpm, the pressure is 2MPa, after melt extrusion, granulation is get the product.

Embodiment 3

[0052] This embodiment provides a low-smoke density PC / ABS composition and a preparation method thereof, the method comprising the following steps:

[0053] (1) Weigh each component by weight: PC is PC-1220: 70 parts, ABS8434: 30 parts, porous ceramic is Al 2 o 3Nano ceramic: 10 parts, antioxidant: 1010 0.1 part, antioxidant 168: 0.1 part, lubricant PETS: 0.3 part.

[0054] (2) After mixing all the raw materials evenly, feed them from the feeding port of the extruder, melt and extrude at 220-260°C, the screw extruder speed is 500rpm, the pressure is 2MPa, after melt extrusion, granulation is obtained product.

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PUM

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Abstract

The invention provides a PC / ABS (polycarbonate / acrylonitrile butadiene styrene) composition with low smoke density and a preparation method thereof. The composition comprises the following components in parts by weight: 50 to 80 parts of PC resin; 10 to 40 parts of ABS resin; 5 to 10 parts of porous ceramic; 0.1 to 1 part of an antioxidant; and 0.1 to 1 part of a lubricant. Due to the fact that the carbon density of PC is very high, PC / ABS can generate some unsaturated carbides and form dense smoke during combustion, compared with the prior art, according to the low-smoke-density PC / ABS composition; due to the fact that the porous ceramic component is added, the obvious smoke suppression effect is achieved, the porous structure can adsorb most dense smoke released during PC / ABS combustion, wherein the smoke density is reduced, and the effect is remarkable.

Description

technical field [0001] The invention relates to the field of polymer materials, in particular to the polymer material composition required by the school bus and passenger car combustion standards and requirements, and in particular to a PC / ABS composition with low smoke density and a preparation method thereof. Background technique [0002] PC / ABS alloy has excellent mechanical and thermal properties, and is widely used in automobiles, home appliances, digital products and other fields. PC / ABS is also widely used in school buses and passenger car interior parts. In March 2017, the state issued regulations to impose mandatory requirements on the flammability of materials used in passenger cars and school buses. According to the requirements in GB / T 8627-2007, all passenger cars use All materials need to meet the requirement of smoke density ≤ 70. Currently, the smoke density of PC / ABS is between 80 and 100, which is difficult to meet the regulatory requirements of passenger c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L69/00C08L55/02C08K7/24C08K7/26C08K13/04
CPCC08L69/00C08K2201/011C08L55/02C08K7/24C08K7/26C08K13/04
Inventor 刘辉辉周中玉冯永奇周霆辛敏琦
Owner SHANGHAI KUMHO SUNNY PLASTICS
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