| 用封端预聚物制备聚氨酯-丙烯酸酯水分散液 |
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| 引用本文： | 徐强,胡春圃,应圣康. 用封端预聚物制备聚氨酯-丙烯酸酯水分散液[J]. 功能高分子学报, 2003, 16(4): 531-534 |
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| 作者姓名： | 徐强 胡春圃 应圣康 |
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| 作者单位： | 华东理工大学材料科学与工程学院,上海,200237 |
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| 摘 要： | 采用具有烯醇结构的封端剂，用反应活性较高的芳香族异氰酸酯制备了聚氨酯-丙烯酸酯(PUA)水分散液。红外光谱分析和涂膜性能测试结果表明，封端后的聚氨酯预聚物在水中可以解封，所制备的PUA膜的性能优于在水中难于解封的封端剂制备的PUA。比较了用预聚物分散法和核壳反转法制备的封端型PUA水分散液的特性。
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| 关 键 词： | 聚氨酯-丙烯酸酯 水分散液 封端预聚物 制备 预聚物分散法 核壳反转法 |
| 文章编号： | 1008-9357(2003)04-0531-04 |
| 修稿时间： | 2003-05-25 |
Aqueous Polyurethane-acrylic (PUA) Dispersion Prepared with Blocked Prepolymer |
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| XU Qiang,HU Chun-pu,YING Sheng-kang. Aqueous Polyurethane-acrylic (PUA) Dispersion Prepared with Blocked Prepolymer[J]. Journal of Functional Polymers, 2003, 16(4): 531-534 |
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| Authors: | XU Qiang HU Chun-pu YING Sheng-kang |
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| Abstract: | Aqueous PUA dispersion based on aromatic isocyanate was prepared with blocked prepolymer. The blocking agent with enol keto stucture( BAEK) .diethyl malonate( DEM) , was used to prepare the dispersion. The results of FTIR analysis and testing properties for PUA films show that the blocked polyurethane prepolymer can be deblocked in water medium;The properties of the film made from BAEK is superior to those of the counterpart from other blocking agents. |
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| Keywords: | polyurethane acrylic aqueous dispersion blocking agent |
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