不同链化学结构丁苯橡胶与天然橡胶混容性研究  

COMPATIBILITY OF NATURAL RUBBER OF DIFFERENT CHAIN STRUCTURE WITH BUTADIENE-STYRENE RUBBER

作　　者：马德柱[1] 郝文涛[1] 徐文总[1] 罗筱烈[1] 梁俐 

机构地区：[1]中国科学技术大学高分子系,合肥230026 [2]安徽开元轮胎有限责任公司,合肥230032

出　　处：《高分子学报》2001年第2期153-156,共4页Acta Polymerica Sinica

摘　　要：选择了三种丁苯橡胶 (SBR)———乳聚丁苯胶 (ESBR)、溶聚丁苯C(SSBR (C) )及溶聚丁苯B(SSBR(B) ) ,用红外光谱 (FTIR)分析了它们的链化学结构 .同时 ,用动态力学谱 (DMA)和示差扫描量热谱 (DSC)研究了这三种SBR与天然橡胶 (NR)的混容性 .结果表明 ,SSBR(B)与NR具有很好的混容性 .三种SBR与NR混容性的差别 。Three typical styrene-butadiene rubbers (SBR) were chosen: emulsion-SBR(ESBR) and two kinds of solution-SBR(SSBR(C)) and (SSBR(B)). Fourier transform infrared(FTIR) was used to analysis the chain structure; dynamic mechanical analysis (DMA) and differential scanning calorimeter (DSC) were used to study the compatibility of these three SBR with NR. The results show that: the blend system of SSBR(B) with NR is compatible. The blend systems of ESBR and SSBR(C) with NR exhibit two-phase morphology. The differences in compatibility among the three kinds of SBR with NR can be well explained by comparing their chain structure. The content of cis-1,4 polybutadiene (PB) in SSBR (B) is more than that in the other two SBRs and the content of 1,2-add PB is the lowest.

关 键 词：溶聚丁苯 天然橡胶 混容性 链结构 乳聚丁苯 改性 丁苯橡胶 

分 类 号：TQ330[化学工程—橡胶工业]