文献类型：期刊文献

中文题名：动态硫化溴化丁基橡胶/聚丙烯热塑性弹性体制备及性能的影响因素

英文题名：Influence factors on preparation and properties of dynamic vulcanized brominated butyl rubber/polypropylene thermoplastic elastomer

作者：徐建荣[1];唐颂超[1];王庆海[1]

机构：[1]华东理工大学材料科学与工程学院上海市先进聚合物材料重点实验室,上海200237

年份：2010

卷号：33

期号：5

起止页码：387

中文期刊名：合成橡胶工业

外文期刊名：China Synthetic Rubber Industry

收录：CSTPCD;;Scopus;CSCD:【CSCD_E2011_2012】；

语种：中文

中文关键词：溴化丁基橡胶;聚丙烯;动态硫化;密炼工艺;热塑性弹性体;相转变

外文关键词：brominated butyl rubber; polypropyl-ene; dynamic vulcanization; internal mixing tech- nology ; thermoplastic elastomer; phase transition

摘要：采用密炼工艺制备了动态硫化溴化丁基橡胶(BIIR)/聚丙烯(PP)热塑性弹性体(TPV),考察了加工温度、硫化时间对TPV力学性能、微观相态结构、交联密度和流动性的影响。结果表明,当加工温度为180℃时,TPV的力学性能较好,且橡胶相粒子均匀分散于树脂相中。在TPV制备过程中,当硫化时间为10～12min时,胶料的交联密度趋于稳定,胶料达到完全硫化;在硫化3min时,共混物完成了以BIIR和PP为双连续相到以BIIR为分散相、PP为连续相的转变;随着硫化时间的延长,TPV的流动性逐渐增加。
Brominated butyl rubber （BIIR）/poly- propylene （PP） dynamic vulcanized thermoplastic elastomer （TPV） was prepared by internal mixing technology, and the effects of temperature, vulcani- zation time on mechanical properties, morphological structure, erosslinking density and fluidity of TPV were investigated. The results showed that the me- chanical properties of TPV was better and the rubber particles uniformly dispersed in the plastic phase when processing temperature was 180 ℃. In the preparation process of TPV, when the vulcanizationtime was 10 - 12 min, the crosslinking density of the compound became stable, and achieved full vulcani- zation ; Morphological structure got transformed from co-continuous phase of BIIR and PP to two-phase system in which BIIR dispersed in PP matrix when dynamic vulcanization time was 3 min; Fluidity of the TPV increased when dynamic vulcanization time was increased.