表面技术2017，Vol.46Issue(12)：238-244,7.DOI:10.16490/j.cnki.issn.1001-3660.2017.12.037
Al2O3超疏水薄膜的制备及其耐腐蚀性研究
Preparation and Corrosion Resistance of Al2O3Superhydrophobic Film
摘要
Abstract
The work aims to improve seawater corrosion resistance of metal at low cost. New lowcost Al2O3sol was used to prepare Al2O3coating on aluminum substrate. Composition, microstructure and wettability of the as-prepared Al2O3coating was analyzed with X-ray diffractometer (XRD), scanning electron microscope (SEM) and contact angle meter, respectively. Corro-sion resistance of the sample was measured and evaluated with electrochemical workstation. The new lowcost Al2O3sol could be used to prepare amorphous a Al2O3film on the aluminum substrate, and the film consisted of columns of different diameters;density and diameter uniformity of columns on the film could be altered in the method of boiling water etching. After being modified by low surface energy materials, contact angle between the as-prepared Al2O3film and deionized water reached 153.2°, and the film had higher hydrophobicity and lower adhesion. The modification improved the seawater corrosion resis-tance of aluminum substrate, corrosion inhibition rate of the film on untreated substrate was up to 97.9%. The Al2O3film made from the new lowcost Al2O3sol on aluminium substrate can effectively improve seawater corrosion resistance.关键词
疏水性/溶胶凝胶法/Al2O3薄膜/耐腐蚀/低粘附/铝Key words
hydrophobicity/sol-gel method/Al2O3film/corrosion resistance/low adhesion/aluminium分类
矿业与冶金引用本文复制引用
刘盛友,刘长松,程千会..Al2O3超疏水薄膜的制备及其耐腐蚀性研究[J].表面技术,2017,46(12):238-244,7.基金项目
青岛市自然科学基金(11-2-4-4-(2)-JCH)Supported by Qingdao Natural Science Foundation (11-2-4-4-(2)-JCH) （11-2-4-4-(2）
