聚氨酯微孔弹性体材料的制备与性能  

Preparation and Properties of Polyurethane Microporous Elastomer

作　　者：郑晖 姜凌 王黎明 宋红光 郭济伟 

机构地区：[1]中车青岛四方车辆研究所有限公司,山东青岛266031

出　　处：《聚氨酯工业》2017年第6期16-18,共3页Polyurethane Industry

摘　　要：以聚四氢呋喃二醇PTMG1000、MDI、液化MDI(100L)、三羟甲基丙烷(TMP)、乙二醇(EG)、催化剂A33和水等为原料采用半预聚法合成了聚氨酯微孔弹性体材料,考察了不同异氰酸酯配比、NCO含量、扩链剂/交联剂配比及水用量对材料性能的影响。结果表明,适当地提高材料中100L、TMP含量或提高NCO基的含量均可提高材料力学强度;水用量增加,材料各项性能有所降低。Polyurethane microcellular elastomers were prepared by the method of quasi-prepolymerization and prepolymer based on the PTMG1000,MDI,liquefied MDI（ 100 L）,trimethylolpropane（ TMP）,ethylene glycol（ EG）,catalyst A33 and water. The effects of the isocyanate ratio,NCO content,EG/TMP ratio and water content on the properties of the material were investigated. The results showed that the increase of 100 L,TMP content or the NCO content could improve the mechanical strength and the amount of foaming agent,and the performance of the material was obviously decreased.

关 键 词：聚氨酯 微孔弹性体 聚四氢呋喃二醇 减振弹性垫板 

分 类 号：TQ334.1[化学工程—橡胶工业]