一种自修复型水性丙烯酸带锈涂装底漆的研制  

Development of Self-Healing Waterborne Acrylic Rust Converting Primer

作　　者：王燕 冯小仲 Wang Yan;Feng Xiaozhong(Caparol(China)Ltd.R&D Center,Shanghai 201201,China;Caparol(China)Ltd.Hangzhou 311600,China)

机构地区：[1]德爱威(中国)有限公司研发中心,上海201201 [2]德爱威(中国)有限公司,杭州311600

出　　处：《涂层与防护》2021年第10期58-62,共5页Coating and Protection

摘　　要：目前市面上的水性带锈涂装底漆均是以有机酸作为锈转化剂为主,包括了磷酸、单宁酸、没食子酸、没食子酸酯和肟类化合物。这些转锈模式存在不少缺陷,本研究为解决这些问题而设计了一款新型带锈涂装底漆。本研究采用了主体为纳米级带活泼性基团的苯乙烯/丙烯酸酯乳液,在涂覆后可有效包裹并转化铁锈,缔合金属离子,无害化钝化金属表面,耐盐雾效果优异,具有可与油性双组分带锈涂装底漆相媲美的防腐性。At present,the waterborne rust-converting primers are mainly based on the organic acids as rust-converting agents including phosphoric acid,tannic acid,gallic acid,gallic acid ester and oxime compounds.However,there are many shortcomings in these rust-converting modes.In order to solve these problems,a new type of rust-converting primer is designed.In this article,a styrene/acrylate emulsion with active groups at nanoscale is used.After coating,it can effectively encapsulate and convert rust on the metal surface,in addtion,it can associate metal ions and harmlessly passivate the metal surface.It has excellent salt spray resistance and anticorrosive properties similar to the sovent-based 2K rust-converting primers.

关 键 词：带锈底漆 自修复 水性丙烯酸 

分 类 号：TQ630.7[化学工程—精细化工]