聚醚-酯嵌段共聚物提高聚氨酯弹性体水解稳定性的研究  

Study on Developing Hydrolysis Stability of Polyurethane Elastomer Modified by Poly(Ether-Ester) Segmented Copolyols

作　　者：殷宁[1] 亢茂青[1] 冯月兰[1] 封悦霞[1] 王心葵[1] 

机构地区：[1]中国科学院山西煤炭化学研究所,山西太原030001

出　　处：《高分子材料科学与工程》2007年第4期105-109,共5页Polymer Materials Science & Engineering

基　　金：中国科学院重点资助项目(KYS140102)

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。Polyesterether polyols were prepared by the alkoxylation reaction of polyester polyols with propylene oxide initiator in the presence of DMC catalyst. The polyurethane elastomers made using mentioned above polyetherester polyols exhibit excellent comprehensive performances. Under the same hard segment content, the mechanical properties of the polyurethane elastomers are much better than of polyether based elastomer, approaching the level of polyester based ones while hydrolytic stability gains obvious enhancement, compared with polyester type elastomers.

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 

分 类 号：TQ316.344[化学工程—高聚物工业]