PC/ABS/聚硼硅氧烷阻燃合金的性能

doi:10.16085/j.issn.1000-6613.2016.03.032

化工进展 ›› 2016, Vol. 35 ›› Issue (03): 861-865.DOI: 10.16085/j.issn.1000-6613.2016.03.032

PC/ABS/聚硼硅氧烷阻燃合金的性能

周文君, 王雪芹, 何伟壮

杭州师范大学材料与化学化工学院, 浙江杭州 310036

收稿日期:2015-08-17 修回日期:2015-10-19 出版日期:2016-03-05 发布日期:2016-03-05
通讯作者: 周文君(1966-),女,博士,副教授,主要从事高分子阻燃材料的研究。E-mail:cjhzwj@163.com.
基金资助:
浙江省自然科学基金(LY14E030009)及浙江省公益技术应用研究项目(2015C31146).

Properties of flame retarded PC/ABS/polyborosiloxane

ZHOU Wenjun, WANG Xueqin, HE Weizhuang

College of Materials, Chemistry and Chemical Engineering, Hangzhou Normal University, Hangzhou 310036, Zhejiang, China

Received:2015-08-17 Revised:2015-10-19 Online:2016-03-05 Published:2016-03-05

摘要/Abstract

摘要： 采用X射线能谱分析(EDX)研究了PC/ABS/聚硼硅氧烷阻燃合金的燃烧行为,同时考察了阻燃PC/ABS合金的力学性能和加工性能。结果表明,聚硼硅氧烷(PB)中的Si元素会随着燃烧过程的进行逐渐在合金表面进行富集,形成富含Si的绝缘炭层覆盖在基体表面,阻止合金继续燃烧,从而有效提高了PC/ABS合金的阻燃性能。聚硼硅氧烷使PC/ABS合金体系的力学性能有所下降,但拉伸强度下降较少,PB对PC/ABS合金的冲击强度影响较大。在阻燃PC/ABS合金体系中加入相容剂马来酸酐接枝ABS,可使合金体系的力学性能得到明显提高。适量的PB可以改善PC/ABS合金的加工性能。

关键词: 聚硼硅氧烷, PC/ABS合金, 阻燃, 力学性能, 相容剂

Abstract: Surfaces of the PC/ABS/polyborosiloxane before and after combustion were analyzed by the energy dispersive X-ray (EDX). The mechanical properties and processing properties of the flame retarded PC/ABS alloy were also investigated. It was demonstrated that Si element in the polyborosiloxane (PB) would gradually concentrate on the surface of the alloy during the combustion process to form Si-rich insulating char layer on the surface of substrate. The layer retards the alloy from further combustion,which effectively improve the flame retardancy of the PC/ABS alloy. PB degrades mechanical properties of PC/ABS alloy system:PB has a great influence on the impact strength,but decreases the tensile strength only a little. The addition of compatilizer named maleic anhydride grafted ABS in the PC/ABS/PB can obviously enhance the mechanical properties of PC/ABS alloy system. Appropriate amount of PB can improve processing performance of the PC/ABS alloy.

Key words: polyborosiloxane, PC/ABS alloy, flame retardancy, mechanical property, compatilizer

中图分类号:

TQ322.3

周文君, 王雪芹, 何伟壮. PC/ABS/聚硼硅氧烷阻燃合金的性能[J]. 化工进展, 2016, 35(03): 861-865.

ZHOU Wenjun, WANG Xueqin, HE Weizhuang. Properties of flame retarded PC/ABS/polyborosiloxane[J]. Chemical Industry and Engineering Progree, 2016, 35(03): 861-865.

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PC/ABS/聚硼硅氧烷阻燃合金的性能

Properties of flame retarded PC/ABS/polyborosiloxane

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