聚醚改性MQ树脂增强聚氨酯弹性体  

Polyether Modified MQ Resin Reinforced Polyurethane Elastomer

作　　者：卢秋影[1] 姜宏伟[1] LU Qiuying JIANG Hongwei(School of Materials Science and Engineering, South China University of Technology, Guangzhou 510640, China)

机构地区：[1]华南理工大学材料科学与工程学院,广州510640

出　　处：《材料研究学报》2017年第7期489-494,共6页Chinese Journal of Materials Research

摘　　要：在聚氧化丙烯多元醇(PPG)和二苯基甲烷二异氰酸酯(MDI)组成的交联聚氨酯(CPU)体系的基础上添加聚醚改性MQ树脂(E-MQ),制备出E-MQ树脂增强的浇注型聚氨酯弹性体。结果表明:E-MQ树脂与CPU有良好的相容性,制备出的E-MQ增强弹性体具有良好的力学性能。当E-MQ树脂用量为8%(E-MQ树脂占聚氨酯弹性体总质量分数)时增强聚氨酯弹性体的拉伸强度可达20.8 MPa,比CPU基础样提高22.4%,撕裂强度为82 k N·m-1,邵尔A硬度为82度。Based on a cross-linked polyurethane（CPU） system composed of polyoxypropylene polyol（PPG） and diphenylmethane diisocyanate（MDI）, a kind of polyether modified MQ（E-MQ） resin was added to prepare E-MQ reinforced pouring type CPU elastomer. The results show that the E-MQ resin has good compatibility with the CPU, and the prepared E-MQ resin reinforced elastomer has excellent mechanical properties. When the content of E-MQ resin is 8%（E-MQ resin accounts for the total mass fraction of the CPU） the tensile strength of polyurethane elastomer reached to 20.8 MPa, increased by 22.4% comparing to the basic CPU, tear strength is 82 KN·m-1, Shore A hardness is 82 degrees.

关 键 词：高分子材料 聚氨酯弹性体 聚醚改性MQ树脂 拉伸强度 耐热性 

分 类 号：TQ323.8[化学工程—合成树脂塑料工业]