摘要
为研究新型绿色固化剂二聚酸二异氰酸酯(DDI)与端羟基聚丁二烯(HTPB)的固化过程,通过不同组分配比实验分别研究了DDI、TDI、IPDI和HTPB的固化反应效果,计算了其流变反应速率常数。结果表明,60℃时DDI、TDI、IPDI与HTPB的流变反应速率常数分别为:kDDI=0.005 1,kTDI=0.005 6,kIPDI=0.004 4;不同类型固化剂与HTPB固化反应的适用期均可以满足实际使用要求,DDI的固化反应速率大于IPDI而小于TDI。从适用期、反应速率及其低毒可再生性考虑,DDI可以作为HTPB黏结剂体系的固化剂。
In order to study the curing process of new green curing agent dimeryl diisocyanate（DDI）and hydroxyl polybutadiene（HTPB）,the effects of DDI with HTPB curing reaction were studied and compared with TDI and IPDI curing reaction.The change of different curing reaction rate was discussed.The results show that the rheological reaction rate constants of DDI,TDI,and IPDI and HTPB at 60℃is determined as kDDI=0.005 1,kTDI=0.005 6,kIPDI=0.004 4,respectively.The pot-life of curing process with different curing agent met the production requirements,and the curing reaction rate of DDI is larger than IPDI while smaller than TDI.Considering from pot-life and curing reaction rate,DDI is the suitable curing agent for HTPB binder system.
作者
唐婧
常双君
张骏虎
刘成
白海龙
TANG Jing;CHANG Shuangjun;ZHANG Junhu;LIU Cheng;BAI Hailong(College of Environment and Safety Engineering, North University of China, Taiyuan Shanxi 030051, China;Shanxi Jianghuai Heavy Industry Co. , Ltd. , Jincheng Shanxi 048000, China)
出处
《山西化工》
2018年第2期4-5,11,共3页
Shanxi Chemical Industry
基金
山西省自然科学基金资助(项目编号:2015011013)
