| 新型PA/PU复合涂料的合成与性能研究 |
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| 引用本文： | 郭伟,唐黎明,刘德山,周其庠. 新型PA/PU复合涂料的合成与性能研究[J]. 功能高分子学报, 1997, 10(1): 78-83 |
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| 作者姓名： | 郭伟 唐黎明 刘德山 周其庠 |
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| 作者单位： | 清华大学化工系 |
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| 摘 要： | 合成了一种高固含量、不含异氰酸根并可在室温固化的新型聚丙烯酸酯－聚氨酯复合涂料（简写为ＰＡ－ＰＵ），其中ＰＡ为侧基含乙酰乙酸基的聚丙烯酸酯，ＰＵ为端烯基聚氨酯。碱催化下，通过具有两个活泼氢的乙酰乙酸基与双键的Ｍｉｃｈａｅｌ加成反应进行交联固化。主要研究了两组份的合成规律及ＰＡ－ＰＵ涂料的性能，结果表明在一定的催化剂用量下，漆膜具有优良的性能
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| 关 键 词： | 高固含量，室温固化，乙酰乙酸基，双键，Michael加成 |
Study on the Synthesis and Properties of a New Polyacrylate/polyurethane Composite Coating |
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| Guo Wei Tang Liming Liu Deshan Zhou Qixiang. Study on the Synthesis and Properties of a New Polyacrylate/polyurethane Composite Coating[J]. Journal of Functional Polymers, 1997, 10(1): 78-83 |
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| Authors: | Guo Wei Tang Liming Liu Deshan Zhou Qixiang |
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| Abstract: | In this paper, a new NCO-free, high-solids content and room temperature curing polyacrylate/polyurethane (PA-PU) composite coating was reported. The PA and the PU are the acetoacetylated polyacrylate and the vinyl-ended polyurethane, respectively. They could crosslink with each other to form a thermoset coating through the Michael reaction, in which the active hydrogen atoms in the acetoacetyl group added to the vinylic group catalyzed by a basic catalyst. The preparation of the two polymers and the properties of PA-PU coating were mainly studied. The results indicated that high performances of the coating could be obtained at a suitable amount of the basic catalyst. |
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| Keywords: | High solids content PA-PU coating Acetoacety group Vinylic group Michael reaction |
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