基于纳米SiO2改性的镀锌薄板表面无铬耐指纹钝化技术-20140810终稿[精选].doc

基于纳米SiO2改性镀锌表面无铬耐指纹钝化1，陆伟星，吴晓红张千峰 （1. 安徽工业大学 分子工程与应用化学研究所，安徽 马鞍山 243002上海宝钢梅山钢铁股份有限公司 技术中心，南京 211100） 无铬耐指纹钝化表面处理手段结合国内外的相关研究果，本文主要概述了耐指纹钝化的研究状况以及无铬耐指纹钝化液的主要组分纳米SiO2使无铬钝化具有耐指纹性的主要因素制备以及表面改性对无铬耐指纹钝化发展前景进行展望。 关键词： 镀锌板无铬耐指纹纳米SiO2制备表面改性hromium-free Fingerprint Resistant Passivation Technology Based on Nano-SiO2 Modified Surface of the Galvanized Sheet TANG Xiao-dong1, LU Wei-xing2, SUN Cheng-yang1, WU Xiao-hong2, ZHANG Qian-feng1 (1. Institute of Molecular Engineering and Applied Chemistry, Anhui University of Technology, Ma’anshan, Anhui 243002, China; 2. Technique Center, Shanghai Baosteel Meishan Iron Steel Co. Ltd, Nanjing 211100, China) Abstract: Fingerprint resistant chromium-free passivation is adopeted as an important surface treatment method in improving the surface corrosion resistance of galvanized sheet, fingerprint resistance, electrical conductivity and self-lubrication as usual. Combining with the relevant research results, we have summarized the research status of fingerprint resistant passivation and the main compositions of the fingerprint resistant chromium-free passivation solution along with introducing the function of each composition in the paper. Nano-SiO2 as a kind of functional nano-filler is a main factor of fingerprint resistant for chromium-free passivation liquid owning fingerprint resistant performance, preparation and surface modification of nano-SiO2 have been well discussed for its application and development in the fingerprint resistant chromium-free passivation. Key words: Galvanized sheet, fingerprint resistant chromium-free passivation, preparation of nano-SiO2, surface modification —————————————— 收稿日期：2014-07-25 基金项目：校企产学研联合科技攻关项目(MS2013019) 作者简介：汤晓东 (1988-)，男，安徽六安人，硕士研究生，研究方向：金属表面处理。 通讯作者：张千峰，教授，E-mail: zhangqf@ahut.edu.cn。 引言 进入21世纪后，随着生活水平的提高，人们对手机、音响、数码相机、便携式笔记本电脑以及高端小家电的需求量进入一个快速增长期，这就要求相关的镀锌板产品除了具备基本的耐蚀、美观以及手感舒适外还要求具有一定的耐指纹、高导电以及自润滑性，其中耐指纹性对于板材尤其[1]。在实际生产过程中，由于工序需要，镀锌薄板表面不可避免要经人手多次接触，操作者的汗渍将在板材表面形成明显而又清晰的指纹印记。由于汗液的主要成分为尿素