ACS树脂综合性能的研究

Study on Properties of ACS Resin

研究了丙烯腈-氯化聚乙烯-苯乙烯三元共聚树脂(ACS)的加工流动性、力学性能、耐老化性能和阻燃性能,并与丙烯腈-丁二烯-苯乙烯三元共聚树脂(ABS)、丙烯酸酯-丙烯腈-苯乙烯共聚树脂(AAS)树脂进行了对比。结果表明:氯化聚乙烯(CPE)含量为40%的 ACS 树脂比 ABS 容易塑化。随着 CPE 含量的增加,ACS 树脂的冲击强度提高,熔体流动速率、拉伸强度和热变形温度都下降。与 ABS 和 AAS 相比,ACS 的阻燃性能得到了很大的提高,其中 CPE 含量为40%时,ACS 氧指数可达28.10%。ACS 树脂经紫外线照射400h,其冲击强度基本不降低,ACS 的耐老化性远远高于 ABS 和 AAS 树脂。

The flow behavior, mechanical properties, ageing resistance and fire retardancy of acrylonitrile-chlorinated polyethylene-styrene copolymer （ACS） were compared with those of acrylonitrile-butadiene-styrene copolymer （ABS） and acrylate-acrylonitrile-styrene （AAS）. ACS with 40 % chlorinated polyethylene （CPE） has a better plasticizing ability than ABS. With the content of CPE increased, the impact strength increased, however, the melt flow rate, tensile strength, and thermal deformation temperature decreased. ACS containing 40 % CPE possessed an oxygen index of 28.10 % which was higher than that of ABS and AAS. The impact strength of ACS declined very little after irradiated by ultraviolet radiation for 400 h,thus demonstrating a better ageing resistance than ABS and AAS resins.