| 遇水膨胀聚氨酯弹性体的制备与膨胀性能研究 |
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| 引用本文： | 刘晓丹,董慧民,李敏婷,李再峰.遇水膨胀聚氨酯弹性体的制备与膨胀性能研究[J].弹性体,2010,20(4). |
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| 作者姓名： | 刘晓丹 董慧民 李敏婷 李再峰 |
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| 作者单位： | 青岛科技大学生态化工教育部重点实验室 |
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| 基金项目： | 山东省自然科学基金，山东省中青年科学家奖励基金，山东省科技攻关计划 |
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| 摘 要： | 以聚乙二醇、聚四氢呋喃二醇、甲苯二异氰酸酯为原料,用预聚体法制备出遇水膨胀聚氨酯弹性体,研究了聚乙二醇用量和种类对聚氨酯的力学性能及其在不同矿化度水中的吸水膨胀性能的影响。实验结果表明:增加聚乙二醇用量有利于提高聚氨酯的吸水膨胀倍率,但易降低弹性体的力学性能;矿化度对聚乙二醇型聚氨酯的吸水膨胀倍率影响较吸水树脂复合型遇水膨胀橡胶要小得多。
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| 关 键 词： | 聚氨酯 吸水膨胀倍率 矿化度 |
Preparation and water expansion properties of water swellable PU elastomer |
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| LIU Xiao-dan,DONG Hui-min,LI Min-ting,LI Zai-feng.Preparation and water expansion properties of water swellable PU elastomer[J].China Elastomerics,2010,20(4). |
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| Authors: | LIU Xiao-dan DONG Hui-min LI Min-ting LI Zai-feng |
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| Affiliation: | LIU Xiao-dan; DONG Hui-min; LI Min-ting; LI Zai-feng(Key Laboratory of Eco-chemical Engineering; Ministry of Education; College of Chemistry and Molecular Engineering; Qingdao University of Science and Technology; Qingdao 266042; China); |
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| Abstract: | Water swellable PU elastomer were synthesized by prepolymer method with polyethylene glycol,polyoxytertramethylene glycol and toluene diisocyanate as raw materials.Approached the influence of the content of polyethylene glycol on mechanical properties and water absorption expansion properties of PU.The results indicated that water absorption expansion rate increases,but that the mechanical properties decrease with increases in the amount of the polyethylene glycol.There is a little effct of salinity on wate... |
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| Keywords: | polyurethane water absorption expansion rate salinity |
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