塑料科技2011，Vol.39Issue(2)：61-64,4.
遇水膨胀型聚氨酯的制备与性能研究
Study on Preparation and Properties of Water Swellable Polyurethane
李玲玉 1李树材1
作者信息
- 1. 天津科技大学材料科学与化学工程学院,天津300457
- 折叠
摘要
Abstract
Water swellable polyurethane was synthesized by isophorne diisocyanate(IPDI), polyester polyol, dimethylol propionic acid(DMPA), trimethylolpropane(TMP), and etc. The structure of polyurethane was characterized by FTIR. The water volume expansion rate and mechanical properties of polyurethane were also discussed. The results show that when the molar ratio of NCO/OH is 1.3-1,4, the water volume expansion rate of the sample is higher; with the increase of DMPA content, the water volume expansion rate of the sample increases, while the retention rate of tensile strength decreases; with the addition of TMP, the retention rate of tensile strength is improved because of chemical cross-linking, but the water volume expansion rate decreases with the increase of TMP content.关键词
聚氨酯/遇水膨胀/体积膨胀率Key words
Polyurethane/ Water swell/ Volume expansion rate分类
化学化工引用本文复制引用
李玲玉,李树材..遇水膨胀型聚氨酯的制备与性能研究[J].塑料科技,2011,39(2):61-64,4.
