助交联剂三(甲基丙烯酸)三羟甲基丙烷酯在丁腈橡胶/热塑性聚酯弹性体共混物中的应用  

Application of assistant crosslinker trimethoxy propane trimethacrylate in nitrile rubber/thermoplastic polyester elastomer blends

作　　者：程超[1] 劳俊杰[1] 张艳芬[1] 肖建斌[1] 于佳珍 

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 [2]如东申玉化工有限公司,江苏南通226000

出　　处：《合成橡胶工业》2016年第1期69-72,共4页China Synthetic Rubber Industry

摘　　要：研究了助交联剂三(甲基丙烯酸)三羟甲基丙烷酯(TMPTMA)的用量对丁腈橡胶/热塑性聚酯弹性体共混物性能的影响。结果表明,助交联剂TMPTMA不仅有加快硫化速率的作用,也具有一定的增塑效果,使混炼胶的门尼黏度降低,改善了胶料的加工性能;随着TMPTMA用量的增加,丁腈橡胶/热塑性聚酯弹性体共混物的拉伸强度、撕裂强度、100%定伸应力及硬度增大,而扯断伸长率减小,耐低温和耐老化性能下降;随着TMPTMA用量的增加,共混物的磨耗体积先减小后增大,耐油性能得到改善。The effect of amount of assistant crosslinker trimethoxy propane trimethacrylate（ TMPTMA） on properties of nitrile rubber/thermoplastic polyester elastomer blends was studied. The results showed that the assistant crosslinker TMPTMA not only played a promotional role in vulcanization but also had a plasticizing effect,and so decreased the Mooney viscosity and improved the processability of the blends. With increasing TMPTMA,the tensile strength,tear strength,modulus at 100% and hardness of the blends increased,but the elongation at break decreased,at the same time the low temperature re-sistance and aging resistance reduced,the DIN abrasion loss reduced first and then increased and the oil resistance improved.

关 键 词：三(甲基丙烯酸)三羟甲基丙烷酯 丁腈橡胶 共混物 门尼黏度 力学性能 磨耗性能 

分 类 号：TQ334.1[化学工程—橡胶工业]