摘要
采用双金属络合催化剂(DMC),以脂肪族己二酸系聚酯多元醇为起始剂,与环氧丙烷、环氧乙烷进行烷氧基化反应,制得聚醚酯多元醇用于聚氨酯弹性体(PUE)的合成,可得到综合性能优良的PUE材料。在相同硬段含量下,聚醚酯型PUE的力学性能接近纯聚酯型PUE,优于纯聚醚型PUE,并且其耐水解性能得到较大的提高,接近纯聚醚型PUE。
Polyetherester polyols were prepared by the alkoxylation reaction of aliphatic adipic acid based polyester polyols as initiator with propylene oxide and ethylene oxide using double-metal complex catalyst（DMC）.The polyurethane elastomer（PUE） synthesized by the obtained polyetherester polyols exhibits excellent comprehensive performance.Under the same hard segment contents,the mechanical properties of the polyetherester type PUE are superior to that of pure polyether type PUE,approaching that of pure polyester type PUE,and the hydrolytic stability is obviously enhanced,approaching that of pure polyether type PUE.
出处
《化学推进剂与高分子材料》
CAS
2011年第3期53-56,77,共5页
Chemical Propellants & Polymeric Materials
关键词
双金属络合催化剂
烷氧基化反应
聚醚酯多元醇
聚氨酯弹性体
水解稳定性
力学性能
double-metal complex catalyst
alkoxylation reaction
polyetherester polyol
polyurethane elastomer
hydrolysis stability
mechanical property
