十八醇对TDI型聚氨酯弹性体耐热性能的影响  

The Effect of the Heat-resistance Property of Stearyl Alcohol to Polyurethane Elastomer Based on TDI

作　　者：甄建军[1] 翟文[1] 

机构地区：[1]中国兵器工业集团第五三研究所,济南250031

出　　处：《聚氨酯工业》2009年第1期37-39,共3页Polyurethane Industry

摘　　要：聚氨酯弹性体固化时添加微相分离促进剂十八醇,在不同温度下对聚氨酯弹性体热失重(TGA)、力学性能以及力学性能高温保持率进行分析。结果表明,加入十八醇增加了PU弹性体微相分离程度,提高了材料的耐热性能;加入十八醇的TDI型PU弹性体的初始热分解温度比未加十八醇的提高了12.6℃,20℃下加入十八醇的PU弹性体的力学性能比未加十八醇的PU弹性略差;80℃和100℃下,加入十八醇的TDI型弹性体力学性能要好于未加十八醇的,且PU弹性体的耐热性能提高。Stearyl alcohol as microphase separation promoter was added in the solidification process of polyurethane elastomer based on TDI.Under the different tempertation,the thermogravimetric,mechanical properties and its high-temperatation retention index were analysed.The results showed that adding the stearyl alcohol increased heat-resistance property.The initial decomposition temperature of PU adding the stearyl alcohol raised 12.6℃,compared with the no-adding stearyl alcohol.The mechanical properties of PU add...

关 键 词：聚氨酯弹性体 十八醇 耐热性能 

分 类 号：TQ334.1[化学工程—橡胶工业]