摘要
聚氨酯弹性体作为一种高性能弹性体,综合性能优良,制品应用广泛,涉及建材、交通、机械、医疗等诸多领域。在聚氨酯弹性体配方优选方面,重点研究了HDI含量和PPG含量对聚氨酯弹性体拉伸性能和水解稳定性的影响。红外光谱分析表明,随着HDI和PPG含量的减少,形成氢键区域吸收峰强度增强,表明弹性体内形成氢键数量增多。聚氨酯弹性体水解稳定性测试结果表明,HDI含量越高,聚氨酯水解稳定性越差,PPG含量越高,水解稳定性越好。
The polyurethane elastomer is widely used in building materials,transportation products,machinery and medical applications and many other fields,due to its excellent overall performance. In this paper,the effects of HDI content and PPG content on mechanical properties of the polyurethane elastomers and hydrolytic stability were investigated. Infrared spectroscopy showed that,with the reduction and PPG,HDI content of hydrogen bond formation region,absorption peak intensity increased,indicating that the increase of hydrogen bonds in the polyurethane.Polyurethane elastomers hydrolytic stability test results showed that the increase on the content of PPG contributes to better hydrolytic stability and the decrease of HDI.
出处
《玻璃钢／复合材料》
CAS
CSCD
北大核心
2016年第9期86-90,54,共6页
Fiber Reinforced Plastics/Composites
关键词
聚氨酯
水解稳定性
复合材料
polyurethane
hydrolytic stability
composites
