引用本文:李杰,黄镕敏,王超磊,吴昊晨,张阳.仿生微织构与氟硅烷修饰对6061铝合金浸润性的影响[J].中国表面工程,2020,33(2):29~36
Li Jie,Huang Min,Wang Chaolei,Wu Haochen,Zhang Yang.Effects of Biomimetic Microtexture and Fluoroalkylsilane Modification on Wettability of 6061 Aluminum Alloy[J].China Surface Engineering,2020,33(2):29~36
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仿生微织构与氟硅烷修饰对6061铝合金浸润性的影响
李杰1, 黄镕敏1, 王超磊2, 吴昊晨1, 张阳1
1.北京工商大学 材料与机械工程学院, 北京 100048;2.北京仿真中心 航天系统仿真重点实验室, 北京 100854
摘要:
利用激光辐射效应在铝合金表面构建仿生微织构,通过自组装工艺在微织构表面实现氟硅烷改性处理,制备得到特殊浸润性表面。 利用扫描电镜、三维形貌仪、接触角测量仪对试样微观形貌和浸润性进行表征。 测试与分析结果表明,仿生微织构和氟硅烷修饰对构建特殊浸润性表面起到重要作用;微织构的形貌差异、加工矩阵间距的变化均会影响试样表面对水接触角。 通过数学模型的计算进一步证实,仿生微织构表面具有的超疏水浸润状态符合 Cassie 模型预测。
关键词:  浸润性  仿生微织构  接触角  氟硅烷修饰
DOI：10.11933/j.issn.1007-9289.20191023001
分类号:TG178
文章编号:1007-9289(2020)02-0029-08
文献标识码:A
基金项目:国家自然科学基金(51975006,51505006)； 北京市委组织部优秀人才(2016000020124G026)
Effects of Biomimetic Microtexture and Fluoroalkylsilane Modification on Wettability of 6061 Aluminum Alloy
Li Jie1, Huang Min1, Wang Chaolei2, Wu Haochen1, Zhang Yang1
1.School of Materials and Mechanical Engineering, Beijing Technology and Business University, Beijing 100048 , China;2.Science and Technology on Special System Simulation Laboratory, Beijing Simulation Center, Beijing 100854 , China
Abstract:
Biomimetic microtexture was constructed on aluminum alloy substrate by laser irradiation. Subsequently, perfluoro- decyltrichlorosilane were deposited on these surfaces by nanocoating technology through a self-assembly route to form special wet- tability aluminum alloy surface. Scanning electron microscope, surface profiler and contact angle measurement were used to ana- lyse the surface properties, and wettability of specimens. The results indicate that biomimetic microtexture and SAMs play an im- portant role in preparing superhydrophobic surface. Contact angle of the water droplet on the substrates is affected by type of mi- crotexture in morphology and matrix pitch spacing. The calculation of the mathematical models further confirms that, the values of contact angle measurement are in accord with the Cassie model’s prediction
Key words:  wettability  biomimetic microtexture  contact angle  fluoroalkylsilane modification
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