电沉积聚8鄄羟基喹啉膜及其耐蚀性的研究-表面技术.PDF

摇摇摇 84 刘小勤等摇 电沉积聚8鄄羟基喹啉膜及其耐蚀性的研究 电沉积聚8鄄羟基喹啉膜及其耐蚀性的研究 1 1,2 1 1 3 刘小勤 ,曾冬铭 ,徐钦建 ,黄凤祥 ,刘中兴 (1.中南大学 化学化工学院,长沙410083; 2.中南大学 有色金属资源化学教育部重点实验室,长沙410083; 3.特能宝化学原料有限公司,佛山528000) 摇 摇 [摘摇 要]摇 采用循环伏安法合成了一种新的聚合物膜———聚8鄄羟基喹啉膜,推测了聚合的机理,通过红外 光谱分析了聚合膜的组成。 采用单因素实验优化了成膜条件,结果表明,循环伏安法形成聚8鄄羟基喹啉膜的最佳 条件是:8鄄羟基喹啉浓度为0.002 mol/ L,氢氧化钠浓度为0.4 mol/ L,扫描速度30 mV/ s,扫描8 圈。 采用该成膜 条件在镀镍工件上电沉积聚8鄄羟基喹啉,其表面形成了一层浅黄色明亮光滑的致密薄膜,达到封孔目的,使得工 件的耐蚀性显著提高。 [关键词]摇 电沉积;聚8鄄羟基喹啉;防腐蚀;循环伏安法 [中图分类号]TQ153.3 摇 摇 摇 [文献标识码]A 摇 摇 摇 [文章编号]1001鄄3660(2013)02鄄0084鄄05 Electrodeposition of Poly鄄8鄄hydroxyquinoline Films and Its Corrosion Resistance Performance 1 1,2 1 1 3 LIUXiao鄄qin ,ZENGDong鄄ming ,XUQin鄄jian ,HUANGFeng鄄xiang ,LIUZhong鄄xing (1.School of Chemistry and Chemical Engineering,Central South University,Changsha410083,China; 2.Key Laboratory of Resources Chemistry of Nonferrous Metals Ministry of Education,Central South University, Changsha410083,China;3.Special Bowes Chemical Materials Co. ,Ltd. ,Foshan528000,China) [Abstract]摇 The poly鄄8鄄hydroxyquinoline was firstly prepared by cyclic voltammetry. The mechanism of polymerization was speculated,andthecompositionof thepolymerfilmwasstudiedwithinfraredspectros鄄copy. Tafeltestingwasusedinorder tooptimizethetreatmentfor electrodeposition. Theresult showsthat:thebest conditionof cyclicvoltammetry methodto synthe鄄 size corrosion鄄resistance polymer film is:the concentration of 8鄄hydroxyquinoline is 0.002 mol/ L,sodium hydroxide is 0.4 mol/ L,thescanrateis30 mV/ s,andscan8laps. Abrightandsmoothyellowfilmisobtainedandthecorrosion鄄resistanceper鄄 formance of the nickel plating work piece processes under t