合成橡胶工业 |
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不饱和羧酸锌盐对NBR的增强 袁新恒 彭宗林 张勇 张祥福 张隐西 摘要:通过氧化锌与甲基丙烯酸或丙烯酸的中和反应,在丁腈橡胶(NBR)中原位生成了甲基丙烯酸锌或丙烯酸锌,研究了过氧化物硫化NBR的力学性能和交联结构。结果表明,原位合成法甲基丙烯酸锌或丙烯酸锌增强NBR可得到与直接加入法类似的增强效果,硫化胶具有高强度、高硬度和高伸长率;对交联结构的分析表明,硫化胶的良好性能与其含离子交联键有密切关系。 Reinforcement of NBR with zinc salts of unsaturated carboxylic acids Yuan Xinheng,Peng Zonglin,Zhang Yong,Zhang
Xiangfu and Zhang Yinxi Abstract:The in- situ preparation of zinc methylacrylate or zinc acrylate through
mixing zinc oxide(ZnO) and methylacrylic acid (MAA)or acrylic acid(AA) in NBR rubber
vulcanized with peroxide was studied.The results showed that ZnO/MAA(AA)had a great effect
of reinforcement on the properties of vulcanizated NBR, and their amounts played an
important role in influcing the crosslink density and structure of vulcanizated NBR as
well as the mechanical properties. The change in the tensile strength of vulcanizated NBR
was related to the variation of the salt crosslink density. 基金项目:高等学校博士学科点专项科研基金项目。 参 考 文 献 1,Martin F S, Melvin T, Pieroni J K. Solid golf ball[P]. U S, US 4
266 722. 1981 收稿日期:1999-06-22;修订日期:2000-01-23。 |