| 蓖麻油基水性聚氨酯的合成及性能 |
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| 引用本文： | 何蕾,杨隽,涂洁,杨亮亮,匡志娟.蓖麻油基水性聚氨酯的合成及性能[J].武汉化工学院学报,2010(3):79-81,110. |
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| 作者姓名： | 何蕾 杨隽 涂洁 杨亮亮 匡志娟 |
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| 作者单位： | 武汉工程大学材料科学与工程学院; |
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| 摘 要： | 采用蓖麻油（C．O．）、甲苯二异氰酸酯（TDI）和二羟甲基丙酸（DMPA）反应合成了水性聚氨酯（WPU）分散体，研究了n（-NCO）／n（-OH）、DMPA含量对聚氨酯乳液及涂膜性能的影响．实验表明：当n（一NCO）／n（0H）为2．2：1，DMPA添加量为7．0％，反应温度为70℃，乳化温度为30℃时合成的水性聚氨酯涂料具有优良的成膜性、较高的硬度、良好的柔韧性和较好的疏水性．
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| 关 键 词： | 蓖麻油 水性聚氨酯 水性涂料 |
Studies on syntheses and properties of waterborne polyurethane from castor oil |
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| HE Lei,YANG Jun,TU Jie,YANG Liang-liang,KUANG Zhi-juan.Studies on syntheses and properties of waterborne polyurethane from castor oil[J].Journal of Wuhan Institute of Chemical Technology,2010(3):79-81,110. |
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| Authors: | HE Lei YANG Jun TU Jie YANG Liang-liang KUANG Zhi-juan |
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| Affiliation: | HE Lei,YANG Jun,TU Jie,YANG Liang-liang,KUANG Zhi-juan (School of Materials & Engineering,Wuhan Institute of Technology,Wuhan 430074,China) |
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| Abstract: | Waterborne polyurethane （WPU） was prepared by the reaction of castor oil （C. O. ） with dimethoxypropionic acid （DMPA） and toluene diisocyanate （TDI）. The effects of molar ratios of --NCO to --OH and DMPA content on the properties were investigated. The result showed that the castor oil based waterborne polyurethane had excellent film-forming property, high hardness, excellent fallibility and good resistances to water. The best experiment conditions were as follows：molar ratio of n（-- NCO）/n（--OH） was 2.2, DMPA content was 7.0 %, the temperatures of reaction and emulsification stage were 70 and 30 ℃, respectively. |
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| Keywords: | castor oil waterborne polyurethane waterborne coating |
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