| 水性聚氨酯的改性研究 |
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| 引用本文： | 王平华,伍胜利,刘春华.水性聚氨酯的改性研究[J].聚氨酯工业,2004,19(5):26-29. |
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| 作者姓名： | 王平华 伍胜利 刘春华 |
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| 作者单位： | 合肥工业大学化工学院高分子材料与工程系,230009 |
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| 摘 要： | 分别采用丙烯酸酯、环氧树脂合成2种不同的改性水性聚氨酯，比较了改性前后及2种不同的改性水性聚氨酯在乳液、涂膜性能及粘接性能方面的差异。结果表明，改性后的水性聚氨酯综合性能明显提高，其中环氧树脂改性水性聚氨酯(EPU)在固化交联后涂膜的耐水、耐溶剂及力学性能又明显好于丙烯酸酯改性水性聚氨酯(PUA)，其粘接强度与溶剂型聚氨酯相当；而采用丙烯酸酯改性的水性聚氨酯PUA乳液稳定性好于EPU乳液。
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| 关 键 词： | 水性聚氨酯 改性 丙烯酸酯 环氧树脂 合成 固化交联 过硫酸钾 |
| 修稿时间： | 2004年7月31日 |
Study on the Properties of Modified Water-Borne Polyurethane |
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| Wang Pinghua,Wu Shengli,Liu Chunhua.Study on the Properties of Modified Water-Borne Polyurethane[J].Polyurethane Industry,2004,19(5):26-29. |
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| Authors: | Wang Pinghua Wu Shengli Liu Chunhua |
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| Abstract: | Water-borne polyurethane dispersions(WPU)were prepared. The WPUs were modified with acrylic and epoxide resin E-44 respectively. Dispersions, cast films and adhesive strength properties of WPUs and two types of modified ones are compared, the results showed that :emulsion and cast film of modified WPUs present higher performance properties, and E-44 modified ones(EPU) have better properties than PUA in water and organic solution resistance, mechanic properties and adhesive strength, but its emulsions stability not as good as PUA hybrid emulsions. |
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| Keywords: | water-borne polyurethane modification acrylic expoxide resin |
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