| 陈少云，吴红枚，吴斌，陈解放，刘芝芳，李飞，沈兰兰.一种阳离子水性聚氨酯的合成及其性能分析[J].南华大学学报(自然科学版),2013,27(2):58~62.[CHEN Shao-yun,WU Hong-mei*,WU Bin,CHEN Jie-fang,LIU Zhi-fang,LI Fei,SHEN Lan-lan.Synthesis and Characterization of Cationic Waterborne Polyurethane[J].Journal of University of South China(Science and Technology),2013,27(2):58~62.] |
| 一种阳离子水性聚氨酯的合成及其性能分析 |
| Synthesis and Characterization of Cationic Waterborne Polyurethane |
| 投稿时间：2013-03-20 |
| DOI： |
| 中文关键词: 阳离子 水性聚氨酯 固含量 力学性能 |
| 英文关键词:cationic waterborne polyurethane solid content mechanical properties |
| 基金项目:国家自然科学基金资助项目（21104031）；湖南省自然科学基金资助项目（08JJ4024） |
|
| 摘要点击次数: 1930 |
| 全文下载次数: 3648 |
| 中文摘要: |
| 以混合二异氰酸酯和聚醚二元醇为单体、N-甲基二乙醇胺为亲水扩链剂，合成了一种阳离子型水性聚氨酯.其固含量可达46.70%，合成的乳液具有二元分散粒径分布，其成膜的吸水性仅为3.665%，断裂伸长率高达1 512.88%，TG分析表明该膜在250 ℃开始降解，在460 ℃已完全失重.结果表明所合成的水性聚氨酯固含量较高，同时具有良好的力学性能和综合性能。 |
| 英文摘要: |
| One kind of cationic waterborne polyurethane was prepared by the step-growth polyaddition process of mixed diisocyanates and polyether dibasic alcohol with N - methyl diethanolamine as hydrophilic chain extender.Its solid content was up to 46.70%.The particle size distribution of the emulsion had bimodal particle size distribution.The water absorption of its membrane form was as low as 3.665% while the breaking elongation of the film can reach 1512.88%.TG analysis showed that the formed membrane began to degradate at 250 ℃ and became completely weightless at 460 ℃.These results show that the synthesized waterborne polyurethane not only has high solid content but also shows good mechanical properties and comprehensive performance. |
| 查看全文 查看/发表评论 下载PDF阅读器 |
| 关闭 |