| 非离子型聚氨酯-丙烯酸酯复合细乳液的研究 |
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| 引用本文： | 刘楠楠,杨建军,张建安,吴庆云,吴明元. 非离子型聚氨酯-丙烯酸酯复合细乳液的研究[J]. 中国涂料, 2010, 25(1): 36-40 |
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| 作者姓名： | 刘楠楠 杨建军 张建安 吴庆云 吴明元 |
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| 作者单位： | 安徽大学化学化工学院,安徽省绿色高分子材料重点试验室,合肥,230039 |
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| 摘 要： | 首先通过异佛尔酮二异氰酸酯与聚醚多元醇缩聚,以1,4-丁二醇为扩链剂制得—NCO为端基的非离子型聚氨酯(PU)预聚体大分子,然后分别用乙醇和丙烯酸羟乙酯(HEA)对其封端。经细乳液聚合法与甲基丙烯酸甲酯和丙烯酸丁酯共聚得到聚氨酯-丙烯酸酯(PUA)复合乳液。结果显示:当细乳化时间为5min、细乳化转速为14000r/min以上时,制备出的细乳液较为稳定;随着PU预聚体用量和分子量的增加,聚合反应速率和最终单体转化率都有所下降;并且HEA封端的PU预聚体与MMA和BA形成了交联网络结构。
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| 关 键 词： | 聚氨酯 丙烯酸酯 细乳液聚合 交联网络 |
Study on non-ionic PU-acrylate complex fine-emulsion |
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| Liu Nannan,Yang Jianjun,Zhang Jianan,Wu Qingyun,Wu Mingyuan. Study on non-ionic PU-acrylate complex fine-emulsion[J]. China Paint, 2010, 25(1): 36-40 |
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| Authors: | Liu Nannan Yang Jianjun Zhang Jianan Wu Qingyun Wu Mingyuan |
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| Affiliation: | Liu Nannan,Yang Jianjun,Zhang Jian'an,Wu Qingyun,Wu Mingyuan (Anhui Key Laboratory of Environment-friendly Polymer Materials,College of Chemistry , Chemical Engineering,Anhui University,Hefei 230039,Anhui Province) |
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| Abstract: | The polycondensation of isophorone diisocyanate and polyether polyol,with 1,4-butanediol as link extender,gives non-ionic PU prepolymer;and then the non-ionic PU prepolymer is terminated by ethanol and hydroxyethyl acrylate (HEA).The prepolymer is copolymeried with methyl methacrylate (MMA) and butyl acrylate (BA) through fine-emulsion polymerization method to give PU-acrylate complex latex.The results show that,with the f ine emulsifying time of 5 min and the emulsifying rotational speed of more than 14000... |
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| Keywords: | PU acrylate fine-emulsion polymerization cross-linked network structure |
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