水介质振动球磨法制备片状锌粉  

Preparation of Zinc Flakes by Water-milling

作　　者：高飞[1] 赵麦群[1] 郭敬[1] 张金凤[1] 

机构地区：[1]西安理工大学材料科学与工程学院,西安710048

出　　处：《腐蚀与防护》2012年第11期964-967,共4页Corrosion & Protection

基　　金：陕西省重点学科建设专项资金资助项目

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1h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。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 lh milling, the content of Zn and average grain diameter of the zinc flakes reached the Dacromet demands.

关 键 词：水介质球磨 片状锌粉 缓蚀剂 

分 类 号：TG174.42[金属学及工艺—金属表面处理] TF123.23[金属学及工艺—金属学]