| 水性聚氨酯的合成及成膜性分析 |
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| 引用本文： | 陶旭晨,胡承功. 水性聚氨酯的合成及成膜性分析[J]. 安徽机电学院学报, 2010, 0(3): 12-14 |
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| 作者姓名： | 陶旭晨 胡承功 |
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| 作者单位： | 安徽工程大学纺织服装学院,安徽芜湖241000 |
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| 基金项目： | 安徽省高校自然科学研究基金资助项目（2008kj160）; 安徽工程大学人才引进基金资助项目（2007yqQ001） 安徽工程大学青年科研基金资助项目（2009yq029） |
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| 摘 要： | 文采用HDI、聚环氧丙烷二醇、二羟甲基丙酸和封端剂乙二醇等为原料通过预聚法合成水性聚氨酯,并对其成膜性进行了力学分析.通过比较,最佳制备工艺：在40℃时向聚环氧丙烷二醇中缓慢加入HDI,80℃预聚1 h,加催化剂再反应1 h降温至75℃,加DMPA反应2 h,再封端反应1 h,降温至35-40℃加入TEA乳化30 min.交联剂相对含量的提高,可以提高聚氨酯膜的强度和韧性.
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| 关 键 词： | 水性聚氨酯 封端 合成 成膜性 |
Preparation and film-forming property of the waterborne polyurethane |
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| TAO Xu-chen,HU Cheng-gong. Preparation and film-forming property of the waterborne polyurethane[J]. Journal of Anhui Institute of Mechanical and Electrical Engineering, 2010, 0(3): 12-14 |
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| Authors: | TAO Xu-chen HU Cheng-gong |
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| Affiliation: | (Coll.of Text.＆ Cloth.,Anhui Polytechnic University,Wuhu 241000,China) |
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| Abstract: | The waterborne polyurethane was prepared from 1,6-Hexamethylene Diisocyanate（HDI）,Polypropylene Glycol（PPG）,Dimethylol propinic acid（DMPA） and Ethylene Glycol（EG）.The research for film-forming property of the product has been conducted.By comparison,the optimum preparation process is： HDI is added slowly into PPG at 40℃ firstly.Then the temperature rises to 80℃ and holds at that temperature for 1h.Catalyst is added and hold at that temperature for 1h,then DMPA is added and hold at 75℃ for 2h.Block the prepolymer after that for 1h.,then TEA is used to emulsify at 35～40℃ for 30min.Improving relative content of crosslinking agent increases strength and toughness of polyurethane film. |
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| Keywords: | waterborne polyurethane termination synthesis film-forming property |
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