低共熔溶剂对异戊橡胶硫化动力学与应变软化行为的影响  

Effect of Deep Eutectic Solvents on Vulcanization and Strain Softening Behaviors of Isoprene Rubber

作　　者：宋义虎[1] 徐怀山 张春生 蒋彪 王丹灵 SONG Yi-hu;XU Huai-shan;ZHANG Chun-sheng;JIANG Biao;WANG Dan-ling(Zhejiang University,Hangzhou 310027,China;Zhongce Rubber Group Co.,Ltd.,Hangzhou 310018,China)

机构地区：[1]浙江大学高分子合成与功能构造教育部重点实验室,杭州310027 [2]中策橡胶集团股份有限公司,杭州310018

出　　处：《特种橡胶制品》2023年第3期59-63,共5页Special Purpose Rubber Products

基　　金：国家自然科学基金U1908221,新一代载重子午线轮胎超高耐磨橡胶材料研究。

摘　　要：以甘油和乙二醇为氢键供体,四丁基溴化铵和甲基三苯基溴化膦为氢键受体,合成了新型低共熔溶剂(DES);研究了DES对异戊橡胶硫化动力学、硫化橡胶动态剪切Payne效应和循环拉伸Mullins效应的影响。结果表明,加入DES可显著提高IR硫化效率,而不影响平衡硫化状态储能模量及其对应变幅度的依赖性。加入基于四丁基溴化铵/甘油(摩尔比3/1)的DES可显著降低100℃损耗因子并减弱室温循环拉伸Mullins效应。Deep eutectic solvents(DES)were prepared using tetrabutylammonium or methyltriphenylphosphonium bromides as hydrogen bonding acceptor and glycerol or ethylene glycol as hydrogen bonding donor.Effects of DES on vulcanization dynamics of isoprene rubber(IR)and Payne effect and Mullins effect of the vulcanizates under dynamic oscillatory shear and cyclic tension were investigated,respectively.The results showed that DES could accelerate the vulcanization of IR,and without influencing storage modulus and its strain amplitude dependence.DES prepared from tetrabutylammonium bromide and glycerol in a mole ratio of 3/1 could reduce loss factor at 10o'C and weaken Mullins effect under room temperature cyclic tension.

关 键 词：低共熔溶剂 异戊橡胶 硫化 应变软化 

分 类 号：TQ333.3[化学工程—橡胶工业]