聚醚—酯嵌段共聚物改性微孔聚氨酯弹性体性能的研究  

Study on properties of microcellular 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：《弹性体》2006年第3期17-21,共5页China Elastomerics

基　　金：中国科学院重点资助项目(KY-S1-401-02)

摘　　要：采用双金属氰化物络合催化剂(DMC),以脂肪族己二酸系聚酯多元醇为起始剂,与环氧丙烷(PO)、环氧乙烷(EO)进行烷氧基化反应,制得聚醚酯多元醇用于微孔聚氨酯弹性体(MPUE)的合成,可得到综合性能优良的MPUE材料。在相同硬段含量下,聚醚酯型MPUE的力学性能接近聚酯型MPUE,优于聚醚型MPUE,并且其耐水解性能得到较大的提高,接近聚醚型MPUE。Polyesterether polyols are prepared by the alkoxylation reaction of polyester polyols with propylene oxide initiator in the presence of DMC catalyst. The microcellular elastomers made using mentioned above polyetherester polyols exhibit excellent comprehensive performances. Under the same hard segment content,the mechanical properties of the microcellular 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：双金属氰化物络合催化剂 烷氧基化反应 聚醚酯多元醇 微孔聚氨酯弹性体 水解稳定性: 机械力学性能 

分 类 号：TQ323.8[化学工程—合成树脂塑料工业]