材料科学与工程学报2011，Vol.29Issue(3)：392-395,4.
聚碳酸酯型聚氨酯脲弹性体的合成与表征
Synthesis and Characterization of PUU Elastomers Based on Polycarbonate Diol
念以亭 1张志英 1董知之 1肖长发1
作者信息
- 1. 天津工业大学材料科学与工程学院,天津300160
- 折叠
摘要
Abstract
Using polyalkylenecarbonate diol (PCDL) and hexamethylene diisocyanate (HDI) as the prepolymers and 3, 3′-dichloro-4, 4′-diaminodiphenylmethane (MOCA) as the vulcanizing agent, a series of polyurethaneurea (PUU) elastomers with different hard-segment contents were prepared through a two-step approach. Structures of products were characterized by Fourier transform infrared (FT-IR) spectroscopy, and the mechanical properties and water resistance of PUU films were also determined. From the results, it can be concluded that with increasing the hard-segment content, tensile strength first increases, then decreases and increases again at last, meanwhile, water absorption appears to have a contrary trend. There is a dividing point at the hard-segment content of 47％.关键词
聚氨酯脲弹性体/合成/表征/硬段含量/力学性能Key words
PUU elastomers/ synthesis/ characterization/ hard-segment content/ mechanical properties分类
化学化工引用本文复制引用
念以亭,张志英,董知之,肖长发..聚碳酸酯型聚氨酯脲弹性体的合成与表征[J].材料科学与工程学报,2011,29(3):392-395,4.
