1 相关概念

PC/ABS，聚碳酸酯和丙烯腈-丁二烯-苯乙烯共聚物和混合物，是由聚碳酸酯（Polycarbonate）和聚丙烯腈（ABS）合金而成的热可塑性塑胶，结合了两种材料的优异特性，ABS材料的成型性和PC的机械性、冲击强度和耐温、抗紫外线（UV）等性质，可广泛使用在汽车内部零件、商务机器、通信器材、家电用品及照明设备上。

2 典型应用范围

1.汽车内外饰：仪表板，饰柱，仪表前盖，格栅，内外饰件

2.商务设备机壳和内置部件：笔记本/台式电脑，复印机，打印机，绘图仪，显示器

3.电信，移动电话外壳，附件以及智能卡：

4.电器产品，电子产品外壳，电表罩和壳体，家用开关，插头和插座，电缆电线管道

5.家用电器，如洗衣机，吹风机，微波炉内外部件[1]

3 注塑模工艺条件

干燥处理：加工前的干燥处理是必须的。湿度应小于0.04%，建议干燥条件为90~110C，2~4小时。

熔化温度： 230~300C。

模具温度：50~100C。

注射压力：取决于塑件。

注射速度：尽可能地高。

化学和物理特性: PC/ABS具有PC和ABS两者的综合特性。例如ABS的易加工特性和PC的优良机械特性和热稳定性。二者的比率将影响PC/ABS材料的热稳定性。PC/ABS这种混合材料还显示了优异的流动特性。收缩率在0.5%左右。[2]

4 Identify 1. New Method: With Ethyl Acetate, ABS does not silk, HIPS will silk, but only refers to pure. 2. Commonly used bs: There are many kinds of identification bs of ABS and PS, as far as ABS is concerned, the surface brightness is good, toughness is better than PS, after burning, there will be densely packed holes on the surface, the taste has a light sweet taste; PS is divided into GPPS, HIPS, EPS three kinds, more fragile, transparent products, hips brightness in general, toughness than ABS to a little less, burning the surface bright, has the taste of styrene. The cut surface of HIPS is white, but GPPS is not. EPS Is mainly used for foam. TV Shell materials, there are ABS, HIPS, generally according to the surface characteristics, physical characteristics to distinguish, the surface brightness is good in general ABS, with pliers break ABS to be better than HIPS, its hardness is higher, need some strength, and distinguish between fire and smell. 5 is a kind of modified engineering plastics which is synthesized by mixing. Among them, PC is polycarbonate, ABS is acrylonitrile (a) , butadiene (b) and styrene (s) copolymer. The properties of the modified plastics are better than those of Pc and ABS, for example, the impact resistance, heat resistance and hardness are improved. ABS Plastics