TPI结晶性对CV体系硫化SBR/TPI并用胶性能的影响  

Effect of crystallinity of TPI on the properties of SBR/TPI blends vulcanized by CV system

作　　者：张志广[1] 张俊平[1] 杜爱华[1] 

机构地区：[1]青岛科技大学橡塑材料与工程教育部重点实验室,山东青岛266042

出　　处：《弹性体》2011年第3期1-5,共5页China Elastomerics

基　　金：山东省教育厅资助项目(BS2009CL024);国家自然科学基金资助项目(51073085)

摘　　要：研究了反式-1,4-聚异戊二烯(TPI)结晶性对传统硫磺硫化(CV)体系硫化丁苯橡胶(SBR)/TPI并用胶硫化特性及物理性能的影响。结果表明,增大TPI的并用量,能够提高SBR/TPI并用胶的交联密度和硫化速度,延长焦烧时间;TPI冷冻结晶对SBR/TPI并用硫化胶的拉伸性能影响不大,拉伸诱导结晶能够提高SBR/TPI并用硫化胶的拉伸强度和100%定伸应力,降低SBR/TPI并用硫化胶扯断伸长率;随着TPI并用量的增大,SBR/TPI并用硫化胶的压缩强度和压缩永久变形增大。The effect of crystallinity of TPI on the cure characteristics and physical properties of SBR/TPI blends vulcanized by CV system was investigated.The results showed that,crosslink density and curing rate of SBR/TPI blends increased,and scorch time of SBR/TPI compound was extended with the increasing amount of TPI.There was little influence of cold crystallization of TPI on the tensile properties of SBR/TPI blending vulcanizates.The tensile strength and modulus at 100% elongation of SBR/TPI blending vulcanizates increased,while the elongation at break decreased due to the stretch-induced crystallization of TPI.The compression strength and compression set inceased with the increasing of TPI.

关 键 词：SBR/TPI 结晶 并用胶 硫化特性 物理性能 

分 类 号：TQ333.1[化学工程—橡胶工业] TQ333.3