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个人信息Personal Information
教授
硕士生导师
主要任职：伯川书院执行院长
其他任职：机械工程国家级实验教学示范中心主任
性别：女
毕业院校：大连理工大学
学位：博士
所在单位：机械工程学院
学科：机械制造及其自动化
办公地点：大连理工大学知方楼7009房间
联系方式：13516059116
电子邮箱：sunjing@dlut.edu.cn
Fabrication of superhydrophobic surfaces with hierarchical rough structures on Mg alloy substrates via chemical corrosion method
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论文类型：期刊论文
发表时间：2012-03-01
发表刊物：MICRO & NANO LETTERS
收录刊物：SCIE、EI、Scopus
卷号：7
期号：3
页面范围：204-207
ISSN号：1750-0443
摘要：Superhydrophobic surfaces are commonly fabricated by a combination of hierarchical rough structures and low surface energy materials. The hierarchical rough structures of micrometre-scale lump-like structures and sub-micrometre-scale concave-convex structures were firstly and directly fabricated on the surfaces of magnesium (Mg) alloy plates by a simple chemical corrosion. Then, chemical modification with fluoroalkylsilane (FAS) and stearic acid was employed to decrease surface energy. Effect of the composition of chemical corrosive solution on the surface morphology was also studied. Results show that a good superhydrophobic surface on Mg alloy substrates with a 163.4 degrees static water contact angle and 8 degrees rolling angle was obtained via chemical corrosion and FAS modification. The chemicals NiSO4 and NaH2PO2 are both essential to fabricate the hierarchical rough structures needed by the superhydrophobic surfaces.