【作者】 陈晓东； 张海； 周南桥；

【Author】 Chen Xiaodong~(1,2) Zhang Hai~1 Zhou Nanqiao~2 (1.Guangzhou SCUT Bestry Technology Joint-stock Co.,Ltd.,2.Polymer Processing Equipment National Engineering and Research Center,The Key Laboratory of Polymer Processing Engineering Ministry of Education of South China University o f Technology;Guangzhou,510640)

【机构】 广州华工百川科技股份有限公司； 华南理工大学聚合物新型装备国家工程研究中心,聚合物成型加工工程教育部重点实验室； 华南理工大学聚合物新型装备国家工程研究中心聚合物成型加工工程教育部重点实验室；

【摘要】 采用不同结构的软段制备了浇注聚氨酯弹性体。研究了软段结构变化对聚氨酯弹性体的力学性能、耐湿、热性能、磨耗、耐溶剂性以及动态性能的影响。结果表明,PCL弹性体能够表现出PEA型弹性体的优良抗撕裂和应力一应变行为,同时又有类似PTMG型弹性体突出的压缩永久变形和回弹性能,而且具有较好的抗湿滑性能和良好的动态使用性能,其综合性能更加优良和平衡。更多还原

【Abstract】 A series of cast polyurethane elastomers with different soft segments were prepared and characterized. The results of designed experiments indicate that the elastomer based on PCL has excellent tear and stress-strain proper- ties that PEA based elastomer offers,while retaining superior compression set and resilience similar to PTMG based e- lastomer.The PCL based elastomer possesses more balanced properties than the traditional polyols can achieve更多还原