水介质振动球磨法制备片状锌粉
Preparation of Zinc Flakes by Water-milling
摘 要
以电解锌粉(锌含量约93%)为原料, 蒸馏水为研磨介质, 采用高能振动球磨法研究片状锌粉制备, 并通过添加缓蚀剂, 考察缓蚀剂种类及其复配对制备片状锌粉过程中的缓蚀效果。结果表明, 添加苯并三唑(BTA)、聚乙二醇400(PEG-400)、Na2SiO3均可延缓锌粉在球磨过程中的腐蚀。其中BTA(或PEG-400)与Na2SiO3复配的缓蚀效果要优于单一组分缓蚀剂。最佳缓蚀剂组分为0.5% BTA与0.15% Na2SiO3复配。球磨过程中片状锌粉有少量消耗, 粒度逐渐减小, 球磨1 h后片状锌粉活性锌含量和平均粒径可达到达克罗涂层使用要求。
片状锌粉
缓蚀剂
water-milling
zinc flake
inhibitor
Abstract
Zinc flakes were prepared by high-energy vibration milling, using electrolytic zinc powders (wZn%=93%) as raw material and distilled water as grinding medium. By adding corrosion inhibitors in the medium, anti-corrosion effect of several inhibitors and their combinations were investigated during the milling process. The results show that adding BTA, PEG-400 or Na2SiO3 can reduce the corrosion of zinc flakes, among them the combination of BTA (or PEG-400) and Na2SiO3 got better efficiency than a single component inhibitor. Optimized inhibitor component was 0.5% BTA combined with 0.15% Na2SiO3. During the milling zinc flakes had a little decrease and became finer. By 1h milling, the content of Zn and average grain diameter of the zinc flakes reached the Dacromet demands.
中图分类号 TG174.42 TF123.2+3
所属栏目 试验研究
基金项目 陕西省重点学科建设专项资金资助项目
收稿日期 2011/11/23
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备注赵麦群, 教授, 博士,
引用该论文: GAO Fei,ZHAO Mai-qun,GUO Jing,ZHANG Jin-feng. Preparation of Zinc Flakes by Water-milling[J]. Corrosion & Protection, 2012, 33(11): 964
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【4】陈更莉, 郝亮, 陈刚, 等. Zn粉在水溶液中球磨的生成相演化规律研究[J]. 矿冶工程, 2007, 27(6): 61-63.
【5】Foad El-Sherbini E E. Ethoxylated fatty acids as inhibitors for the corrosion of zinc in acidmedia[J]. Materials Chemistry and Physics, 2005, 89:183-191.
【6】Cohen-Hyams T. In situ STM studies of zinc in aqueous solutions containing PEG DiAcid inhibitor[J]. Journal of Power Sources, 2006, 157:584-591.
【7】Georges C. Synergistic effect of tolutriazol and sodium carboxylates on zinc corrosion in atmospheric conditions[J]. Electrochimica Acta, 2008, 53:4839-4845.
【8】蔡增鑫, 林胜舟, 王贵生, 等. 复合添加剂对锌在KOH溶液中电化学行为的影响[J]. 电源技术, 2009, 33(12): 1108-1110.
【9】王新葵, 李宁, 张景双, 等. 苯骈三氮唑对锌的缓蚀行为[J]. 材料保护, 2002, 35(7): 15-21.
【10】Wang D. A study of the film formation kinetics on zinc in different acidic corrosion inhibitor solutions by quartz crystal microbalance[J]. Corrosion Science, 2005, 47: 2157-2172.
【11】张天胜. 缓蚀剂[M]. 北京: 化学工业出版社, 2002: 129.
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