萘二异氰酸酯钝化咪唑衍生物的制备与促进性能  

Preparation and Properties of Naphthalene Diisocyanate Passivated Imidazole Derivative

作　　者：高洁[1] 高堂铃[1,2] 张海琪[1] 王冠[1,2] 付刚[1,2] 邵南[1] 吴健伟[1,2] 匡弘[1,2] 

机构地区：[1]黑龙江省科学院石油化学研究院,黑龙江哈尔滨150040 [2]黑龙江省科学院高技术研究院,黑龙江哈尔滨150020

出　　处：《化学与粘合》2017年第4期243-247,254,共6页Chemistry and Adhesion

基　　金：黑龙江省科学院基金项目

摘　　要：合成了萘二异氰酸酯钝化咪唑化合物NI,并使用FTIR表征了其结构,对环氧树脂/双氰胺/NI体系的固化促进机理、固化活性、转化率、反应动力学、耐热性能和贮存性能进行了研究。结果表明,环氧树脂/双氰胺/NI体系具有良好的固化活性,与未加促进剂的体系相比,特征温度降低了50~60℃左右。环氧树脂/双氰胺/NI体系的表观活化能为89.33kJ/mol,反应级数约为一级。当使用2phr NI时,固化物的Tg可达148.7℃,同时促进剂的含量对体系耐热性能影响不大。该体系在室温下具有良好的贮存稳定性。A naphthalene diisocyanate passivated imidazole derivative （NI） was synthesized and characterized by FT-IR. The curing mechanism, activity, conversion rate, reaction kinetic, heat resistance and storage stability of the epoxy/dicyandiamide/NI system were investigated. The results showed that the epoxy resin/dicyandiamide/NI system has a good curing activity, the characteristic temperatures of the system are 50-60℃ lower than the system without accelerator. The apparent activation energy of the epoxy/dicyandiamide/NI system was calculated to be 89.33kJ/mol, and the reac- tion order was 1. The Tg of the system containing 2phr NI was measured to be 148.7℃, and the effect of NI content on Tg was limited. The prepared system containing NI was found to have a good storage stability at room temperature.

关 键 词：环氧树脂 萘二异氰酸酯 咪唑 促进剂 

分 类 号：TQ314.243[化学工程—高聚物工业]