| 聚脲交联改性丙烯酸酯弹性乳液的制备与性能研究 |
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| 引用本文： | 杨宁,姚金水,张涛,杨志勇,郭瑞宝.聚脲交联改性丙烯酸酯弹性乳液的制备与性能研究[J].涂料工业,2011,41(4). |
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| 作者姓名： | 杨宁 姚金水 张涛 杨志勇 郭瑞宝 |
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| 作者单位： | 山东轻工业学院材料科学与工程学院,济南,250353 |
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| 基金项目： | 国家教育部新世纪人才计划 |
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| 摘 要： | 为了在性能上对聚脲交联改性后的丙烯酸酯乳液(PUA)和纯丙乳液(以)进行比较,文章以丙酮为溶剂,通过端氨基聚醚和甲苯二异氰酸酯的缩合反应合成了端异氰酸酯基聚脲预聚物,由于丙酮与胺基的可逆缩合反应,降低了胺基与异氰酸酯基反应的活性,从而可以更好地控制反应速度,降低副反应的发生几率.聚脲预聚体经丙烯酸羟乙基酯双键封端制备了含有2个双键的聚氨酯脲大单体,以其为外交联剂,通过与甲基丙烯酸甲酯、丙烯酸丁酯的乳液共聚反应制备了聚氨酯脲改性的纯丙弹性乳液,对乳液涂膜进行了FT-IR,DSC和TGA的表征.研究表明:PUA涂膜比PA涂膜具有更好的热稳定性、机械性能、耐低温性以及耐溶剂性.
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| 关 键 词： | 聚脲 丙烯酸树脂 交联 改性 弹性乳液 |
Investigation on Preparation and Performance of Polyurea Crosslinking Modified Elastic Acrylate Emulsion |
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| Yang Ning,Yao jinshui,Zhang Tao,Yang Zhiyong,Guo Ruibao.Investigation on Preparation and Performance of Polyurea Crosslinking Modified Elastic Acrylate Emulsion[J].Paint & Coatings Industry,2011,41(4). |
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| Authors: | Yang Ning Yao jinshui Zhang Tao Yang Zhiyong Guo Ruibao |
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| Affiliation: | Yang Ning,Yao Jinshui,Zhang Tao,Yang Zhiyong,Guo Ruibao(College of Materials Science and Engineering,Shandong Institute of Light Industry,Jinan 250353,China) |
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| Abstract: | To compare polyurea crosslinking modified acrylic latex(PUA) with pure acrylic emulsion(PA) in the performance,isocyanate terminated polyurea prepolymer was synthesized by amino terminated polyethers with toluene diisocyanate using acetone as the solvent.Due to the reversible condensation reaction between amine and acetone,the activity of the amino groups and isocyanate groups was reduced,thus to control the reaction rate and reduce the probability of adverse reactions.The PUU macromonomer that contains two... |
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| Keywords: | polyurea acrylic resin cross-linking modification elastic emulsion |
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