湿热油渍环境对PC/ABS合金力学性能的影响  

Effect of Damp Hot Oily Environment on Mechanical Properties of PC/ABS Alloy

作　　者：刘教实 张艳霞 陈少军[1] 袁好[2] LIU Jiaoshi;ZHANG Yanxia;CHEN Shaojun;YUAN Hao(College of Materials,Shenzhen University,Shenzhen,Guangdong 518000,China;Zte Co.,Ltd.,Shenzhen,Guangdong 518000,China)

机构地区：[1]深圳大学材料学院,广东深圳518000 [2]中兴通讯股份有限公司,广东深圳518000

出　　处：《塑料》2020年第6期33-36,41,共5页Plastics

摘　　要：PC/ABS合金(聚碳酸酯/丙烯腈-丁二烯-苯乙烯)的力学性能易受到环境影响而发生变化,通过万能拉伸试验机,检测了将PC/ABS合金置于不同环境中拉伸应变及拉伸强度的变化,从而研究了环境对材料的影响规律。研究发现,将PC/ABS合金置于在85℃的空气、热水、乙酸、氨水、电缆油和烷基苯中12 h后,其应变变化率分别下降了约6%、3%、42%、94%、16%及68%。当PC/ABS合金经紫外线照射30 d后,应变变化率下降了约34%。结果表明,氨水碱性环境对PC/ABS合金的力学性能影响最大,其次是烷基苯油类。因此,PC/ABS合金在电缆油和烷基苯中,主要发生了韧-脆行为转变。The mechanical properties of PC/ABS(polycarbonate/butyronitrile-butadiene-styrene)alloy was easily changed by environmental influences.The change of tensile strain and tensile strength of PC/ABS alloy after was placed in different environments were tested by universal tensile testing machine to study the influence of environment on materials.The study found that the PC/ABS alloy was placed in air,hot water,acetic acid,ammonia,cable oil and alkylbenzene at 85℃for12 h,and the strain change rate decreased by about 6%,3%,42%,94%,16%and 68%respectively,after 30 days of UV irradiation of PC/ABS alloy,the strain change rate decreased by about 34%.The results showed that the alkaline environment of ammonia had the worst influence on the mechanical properties of PC/ABS alloy,followed by alkyl benzene oil.The analysis indicated that PC/ABS alloy mainly underwent tough-brittle transition in cable oil and alkylbenzene.

关 键 词：PC/ABS合金 断裂拉伸应变 力学性能 油渍环境 韧-脆转变 

分 类 号：TQ325.2[化学工程—合成树脂塑料工业]