Use of aqueous organic silicone hydrophobic agent for hydrophobic treatment of A3 steel
-
摘要: 以市售聚硅氧烷乳液为基料,辅以金属盐催化剂和醇胺类改性植酸水溶性缓蚀剂制备的水溶性有机硅憎水剂,用以处理A3钢磷化试样表面.考察了催化剂质量分数、植酸质量分数、植酸溶液的pH值、乳液与改性植酸的比率对憎水剂憎水处理效果及稳定性的影响;探讨了不同热处理温度、浸渍时间及热处理时间等工艺条件下憎水剂对金属表面憎水性的影响并确定了憎水剂配方和憎水处理工艺.结果表明,用该憎水剂处理的A3钢磷化试样接触角可达132°左右,A3钢磷化处理表面的耐腐蚀性能得到明显改善.Abstract: An aqueous organic silicone hydrophobic agent which was based on the matrix of a commercially available silicone emulsion and was prepared in the presence of a metal salt catalyst and a water soluble corrosion inhibitor of alcoholamine modified phytic acid was applied to treat A3 steel specimen. Factors such as the catalyst content, the modified phytic acid concentration, pH of the phytic acid solution and ratio of the emulsion to the phytic acid acting on water-repellent treating effect and stability of the hydrophobic agent were examined. Effect of the hydrophobic agent on the water-repellency under the process parameters such as different heat-treatment temperatures, dipping time and heat-treating time was discussed and the appropriate formula and procedure were determined as well. The results demonstrate that the contact angle of the said hydrophobic agent treated specimen is as high as 132°, while the corrosion resistance of the phosphatized steel surface after treatment by the said hydrophobic agent is enhanced obviously.
-
Key words:
- hydrophobicity /
- contact angle /
- corrosion-resistant
-
[1] 朱立群,吴俊,刘亚君,等. 表面处理膜层憎水处理后的耐腐蚀性能[J]. 腐蚀科学与防护技术,2002,14(5):302-304 Zhu Liqun, Wu Jun, Liu Yajun,et al. Corrosion resistance of surface films after hydrophobe treatment[J]. Corrosion Science and Protection Technology,2002,14(5):302-304(in Chinese) [2] 谢全彪,肖超渤,谢伟. 关于玻璃表面憎水膜的研究(Ⅱ)[J]. 孝感学院学报,2001,21(3):50-52 Xie Quanbiao, Xiao Chaobo, Xie Wei. Study on water-phobic membrane at the surface of glass(Ⅱ)[J]. Journal of Xiaogan University,2001,21(3):50-52(in Chinese) [3] 朱立群, 李卫平, 吴俊. BH新型憎水剂及其憎水膜层"三防腐蚀"性能研究[J] .航空材料学报, 2004, 24(6):50-55 Zhu Liqun,Li Weiping, Wu Jun. A new series of hydrophobic agents and corrosion resistance of the hydrophobic films[J]. Journal of Aeronautical Materials, 2004,24(6):50-55(in Chinese) [4] Caseri W R, Hirayama M K N, Suter U W. Strongly attached ultrathin polymer layers on metal surfaces obtained by activation of Si-H bonds[J]. Applied Surface Science,1999(143):256-264 [5] Vignesh Palanivel, Zhu Danqing, Wim J, et al. Nanoparticle-filled silane films as chromate replacements for aluminum alloys[J]. Progress in Organic Coatings, 2003 (47):384-392 [6] 杨涛,杨勇,杨坤,等. 新型环保水性含氟共聚物涂料[J].化工技术与开发,2005,34(3):17-20 Yang Tao, Yang Yong, Yang Kun, et al. New environment-protective water-based fluorine containing copolymer paint[J]. Technology and Development of Chemical Industry, 2005, 34(3):17-20(in Chinese) [7] Lork A. Silicone resin emulsion coatings:the strength profile of the silicone resin network in paint microstructures[J]. Surface Coatings International Part B:Coatings Transactions, 2004, 87(70):41-45 [8] 冯圣玉,张洁,李美江,等. 有机硅高分子及其应用[M]. 北京:化学工业出版社,2004:270-273 Feng Shengyu, Zhang Jie, Li Meijiang, et al. Organosilicon polymers and application[M]. Beiing:Chemical Industry Press, 2004:270-273(in Chinese) [9] 日本合成化学工业株式会社. シリコン含有水性コーティング 剂组 成物 . 日本:131482A,2001-05-15 [10] Grulke, South Windsor, Gage, et al. Water based silicone coatings compositions . US:5421865A, 1995-06-06
点击查看大图
计量
- 文章访问数: 3780
- HTML全文浏览量: 145
- PDF下载量: 1009
- 被引次数: 0