中国塑料 ›› 2021, Vol. 35 ›› Issue (11): 44-48.DOI: 10.19491/j.issn.1001-9278.2021.11.007

• 材料与性能 • 上一篇    下一篇

成分因素对PC/ABS合金暴露在烷基苯中力学性能的影响研究

毕伟枫1(), 刘教实1, 陈少军1(), 袁好2(), 张艳霞2   

  1. 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
  • 收稿日期:2021-04-07 出版日期:2021-11-26 发布日期:2021-11-23
  • 作者简介:毕伟枫(1996—),男,硕士(在读),深圳大学,主要从事高分子复合材料等方面研究,773122527@qq.com

Effect of Composition Factors on Mechanical Properties of PC/ABS Alloy Exposed to Alkylbenzene

BI Weifeng1(), LIU Jiaoshi1, CHEN Shaojun1(), YUAN Hao2(), ZHANG Yanxia2   

  1. 1.College of Materials,Shenzhen University,Shenzhen 518000,China
    2.Zte Co,Ltd,Shenzhen 518000,China
  • Received:2021-04-07 Online:2021-11-26 Published:2021-11-23
  • Contact: CHEN Shaojun,YUAN Hao E-mail:773122527@qq.com;chensj@szu.edu.cn;yuan.hao2@zte.com.cn

摘要:

通过万能拉伸试验机检测聚碳酸酯/丙烯腈?丁二烯?苯乙烯共聚物(PC/ABS)合金置于烷基苯后拉伸应变和拉伸强度的变化,研究了烷基苯对其力学性能的影响规律。结果表明,经过60 ℃烷基苯浸渍处理30 d后,分别添加了马来酸酐接枝低密度聚乙烯(PE?g?MAH)、马来酸酐接枝ABS(ABS?g?MAH)、甲基丙烯酸缩水甘油酯接枝乙烯?1?辛烯共聚物(POE?g?GMA)的PC/ABS的断裂拉伸应变变化率下降了58.8 %、25.4 %和41.3 %;相比于ABS,PC组分是导致断裂拉伸应变下降的一个关键因素;有效的相容剂能延长PC/ABS合金在类烷基苯溶剂中保持力学性能稳定性的时间;阻燃剂分散在PC/ABS体系中,在烷基苯渗透作用下更容易发生韧?脆行为转变。

关键词: 聚碳酸酯, 丙烯腈?丁二烯?苯乙烯, 烷基苯, 断裂拉伸应变, 韧?脆转变

Abstract:

The tensile strain and tensile strength of PC/ABS alloy was tested after exposed to alkylbenzene using a universal tensile testing machine. The influence of alkylbenzene on mechanical properties of PC/ABS alloy was investigated. The results indicated that after 30 days of alkylbenzene impregnation at 60 ℃, PC/ABS alloys containing PE?G?MAH, ABS?G?MAH and POE?g?GMA showed a decrease in the rate of tensile strain at fracture by 58.8 %, 25.4 %, and 41.3 %, respectively. Compared to ABS, PC component is a key factor for the decrease of tensile strain at fracture. The effective compatibilizer can prolong the time for the PC/ABS alloy to maintain its mechanical property stability in alkylbenzene solvent. When the flame retardant was dispersed in PC/ABS matrix, a ductile?brittle transformation behavior is more likely to occur due to the osmosis effect of alkylbenzene.

Key words: polycarbonate, acrylonitrile?butadiene?styrene, alkylbenzene, tensile strain at fracture, tough?brittle transition

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