马来酸酐-三烯丙基异氰脲酸酯官能化改性三元乙丙橡胶的反应过程  

Reaction process of functionalized modification of ethylene-propylene-diene terpolymer with maleic anhydride and triallyl isocyanurate

作　　者：王海威[1] 王同海[1] 栗敬军 张文杰 姜瑞玉[1] 赵季若[1] 冯莺[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/山东省橡塑材料与工程重点实验室,山东青岛266042

出　　处：《合成橡胶工业》2017年第5期367-371,共5页China Synthetic Rubber Industry

摘　　要：采用马来酸酐(MAH)和三烯丙基异氰脲酸酯(TAIC)对三元乙丙橡胶(EPDM)进行熔融接枝改性,考察了单体用量及反应温度等对接枝反应规律的影响。结果表明,采用过氧化二异丙苯(DCP)作引发剂,TAIC先与EPDM大分子自由基进行接枝反应形成接枝自由基,然后再与TAIC或MAH进行共接枝反应,TAIC能显著提高MAH的接枝率(R_g)。当TAIC为0.8份、MAH为5份、DCP为0.15份、反应温度为180℃时,MAH的R_g达到最大值,接枝共聚物的凝胶含量较低。The ethylene-propylene-diene terpoly- mer（EPDM） was melt grafting modificated with maleie anhydride （MAH） and triallyl isocyanurate （TAIC） , and the effects of monomer amount and reaction temperature on the regularity of grafting reaction were investigated. The results showed that TAIC grafting reacted with EPDM maeromolecule free radical firstly to form graft free radical, and then cografting reacted with TAIC or MAH, when dicumyl peroxide（DCP） was used as initiator. The grafting ratio （Rg） of MAH could be significantly increased by TAIC. The maximum of Rg of MAH reached and the gel content of the graft copolymer was low when the amount of TAIC, MAH and DCP were 0.8 phr, 5 phr and 0.15 phr respectively, reaction tempera- ture was 180℃.

关 键 词：三元乙丙橡胶 马来酸酐 三烯丙基异氰脲酸酯 熔融接枝 改性 

分 类 号：TQ333.4[化学工程—橡胶工业]