丙 烯 酸 阴 极 电 泳 涂 料 研 究.doc

丙 烯 酸 阴 极 电 泳 涂 料 的 研 究 摘要：电泳涂装是20世纪60年代发展起来的一项新技术[1]，由于它具有独特的优越性，应用面迅速扩大，大到汽车车身，小到徽章、眼睛架等，均可采用电泳涂装。电泳涂料的技术含量很高，他的研制和生产被认为是难度最大的一类涂料，并且使用和管理上的要求也高于普通涂料。目前国内自主开发的电泳涂料产品极少，多数是从国外引进生产工艺和合资工艺。鉴于以上现状，结合当前阴极电泳涂料发展动向，本文合成了具有高装饰性的丙烯酸阴极电泳涂料，并介绍了采用常用的丙烯酸单体通过连续溶液聚合，制备丙烯酸阴极电泳涂料的简单可行方法。研究了丙烯酸单体配比，引发剂种类,合成工艺等对阳离子丙烯酸树脂性能的影响以及树脂水溶性的主要影响因素，同时也讨论了电泳条件，固化条件对漆膜的影响情况，列举了电泳原漆的技术指标，施工参数和漆膜性能指标。 关键词：丙烯酸树脂；阴极电泳涂料；合成； The study of the acrylic cathodic electrodeposition coating Abstract: Electrophoric finishing was a new type of technology derived from 1960s Because of its unique properties electrophoric finishing was applied widely ,such as large project of car body little of barge and glasses frame.Electrodeposition coating had high technological content which study and produce was regarded most difficulty coating ,especially its requirement of use and management were stricter than that of traditional coating . At present ,products of electrodeposition coatings manufactured independently in our country were few and the manufacture of the products mostly depended on foreign techniques or joint ventures .Therefor the reaserch and development of electrodeposition are great significance .Consideration above present status and trends of cathodic electrodeposition coating ,in this dissertation ,we polymerized the acrylic cathodic electrodeposition paint which based on the solution polymerization of normal acrylic monomers has been developed .the factors affect the main properties of resin ,including material proportion 、the water solubility of resin .At the same time the influence of electrodeposition and cure to the coat were discussed .The index of technique ,construction and properties were given . Key word : Acrylic resin ; electrodeposition coating; synthesis; 0 前言 电泳涂料的发展已有60年的历史了，自从1971年，美国PPG公司研制出第一代阴极电泳涂料,电泳涂料更是进入了一个快速发展的轨道，特别是阴极电泳涂料，因其与阳极电泳涂料相比耐腐蚀性高3—4倍，泳透率高1.3—1.5倍，且电沉积时金属表面不易离子化而溶出，解决了工件表面腐蚀问题，固而获得了广泛的应用，已逐渐全面取代了阳极电泳涂料，目前阴极电泳涂料呈现出几大流派：即以美国PPG公司为开端的防锈蚀阳离子型电泳涂料；以德国Hoc