1,5-萘二异氰酸酯型聚氨酯弹性体的制备及性能  

Synthesis and properties of polyurethane elastomers based on 1,5-naphthalene diisocyanate

作　　者：周玲娟 葛卫东 范志成 陈智涛 

机构地区：[1]南京金三力橡塑有限公司,南京210061

出　　处：《合成橡胶工业》2015年第4期286-288,共3页China Synthetic Rubber Industry

摘　　要：通过预聚法合成了以己二酸乙二醇丙二醇二酯、聚四氢呋喃二醚、1,5-萘二异氰酸酯(NDI)、甲苯二异氰酸酯(TDI)、1,4-丁二醇及4,4'-二氨基-3,3'-二氯二苯甲烷为主要原料的聚氨酯弹性体。通过水解后弹性体的拉伸、撕裂等力学性能保持率的比较,发现NDI型聚氨酯弹性体比TDI型具有更好的水解稳定性;通过不同温度下和热空气老化后弹性体力学性能保持率的对比,证明NDI型聚氨酯弹性体的耐热稳定性要优于TDI型。Polyurethane elastomers were synthesized using poly（ ethylene propylene adipate） glycols, poly （ tetramethylene ether） glycols, 1,5-naphthalene diisocyanate （NDI） , 2,4-toluene diisocyanate （ TDI）, 1,4-butanediol, 3,3＇-dichloro-4,4＇-diaminodiphenylmethane as main raw materials by pre-polymer process. The comparison of the retention of tensile strength and tear strength of elastomers after hydrolysis indicated that hydrolytic stability of NDI based polyurethaneelastomer was better than that of TDI based polyurethane elastomer. The comparison of the retention of elastomer strengths at different temperatures and after thermal aging showed that thermal stability of NDI based polyurethane elastomer was superior to that of TDI based.

关 键 词：1 5-萘二异氰酸酯 聚氨酯弹性体 水解稳定性 热稳定性 

分 类 号：TQ334.1[化学工程—橡胶工业]