湖南大学学报（自然科学版）2017，Vol.44Issue(6)：101-106,6.DOI:10.16339/j.cnki.hdxbzkb.2017.06.017
扩链剂对UV固化聚氨酯性能的影响
Influences of Different Chain-extenders on Performance of UV-curable Polyurethane
邓剑如 1罗赛 1龙立 1刘苗娥1
作者信息
- 1. 湖南大学 化学化工学院,湖南 长沙 410082
- 折叠
摘要
Abstract
A series of UV-curable polyurethanes that were compounded based on polydiethylene glycol-2000 as soft segments,different glycol chain extenders and isophorone diisocyanate (IPDI) as hard segments,and 2-Hydroxyethyl acrylate (HEA) as blocking agent were synthesized by prepolymer method.The relative activities of different glycol chain extenders as chain extenders were analyzed: the structure of UV-curable polyurethane was characterized by infrared spectral,and the influences of different glycol chain extenders on the mechanical performance,heat resistance performance and usability of cured film were studied.The results show that under 80 ℃,the reaction speed of ethylene glycol and phenyl isocyanate(PI) is the fastest,the speed of 1,2-propylene diatomic alcohol and PI is the slowest,and 1,4-cyclohexane dimethanol(CHDM) as chain extender of PU has the best mechanical properties and heat resistance.关键词
紫外光固化聚氨酯/性能/动力学/扩链剂Key words
UV-curable polyurethane/performance/kinetics/chain-extenders分类
化学化工引用本文复制引用
邓剑如,罗赛,龙立,刘苗娥..扩链剂对UV固化聚氨酯性能的影响[J].湖南大学学报（自然科学版）,2017,44(6):101-106,6.
