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发明公开
CN109554048A 具有抗流挂特性的烘烤型水性丙烯酸中涂涂料组合物及其制备方法 有权

具有抗流挂特性的烘烤型水性丙烯酸中涂涂料组合物及其制备方法
摘要：
本发明涉及涂料技术领域，具体涉及一种具有抗流挂特性的烘烤型水性丙烯酸中涂涂料组合物及其制备方法。本发明的具有抗流挂特性的烘烤型水性丙烯酸中涂涂料组合物，主要由以下质量百分数的原料制得：羟基功能化水性丙烯酸树脂25～40％；水性氨基树脂2.2～3.1％；助溶剂A 1.5～5.5％；分散剂0.2～0.9％；流平剂0.1～0.35％；消泡剂0.05～0.2％；pH调节剂0.02～0.1％；颜料6～29％；填料20～40％；含聚脲基团的水性抗流挂聚合物3.5～15％；去离子水：5.83～10.45％。本发明的烘烤型水性丙烯酸中涂涂料组合物，同时具有优异的抗流挂性、附着力、耐水性和抗石击性。
摘要（英）：

The invention relates to the technical field of coating, in particular to a baking type waterborne acrylic intermediate coating composition with anti-sagging characteristics and a preparation method thereof. The composition is mainly prepared from, by mass, 25-40% of hydroxyl functionalized waterborne acrylic resin, 2.2-3.1% of waterborne amino resin, 1.5-5.5% of a cosolvent A, 0.2-0.9% of a dispersant, 0.1-0.35% of a leveling agent, 0.05-0.2% of a defoamer, 0.02-0.1% of a pH regulator, 6-29% of pigment, 20-40% of a filler, 3.5-15% of a waterborne anti-sagging polymer containing a polyurea group and 5.83-10.45% of deionized water. The composition has excellent sagging resistance, adhesive force, waterproofness and resistance to stone crash.

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