纯钛基体长效超疏水表面的低成本制备  

Preparation of Durable Superhydrophobic Surface on Pure Titanium Substrate via Low-cost Route

作　　者：王晨玥 杨文秀[1] 张洪敏[1] 王莼 汪涛[1] 

机构地区：[1]南京航空航天大学材料科学与技术学院,南京210016

出　　处：《材料工程》2015年第11期13-18,共6页Journal of Materials Engineering

摘　　要：为降低钛基上超疏水表面的制备成本,提高超疏水表面的耐久性能,以喷砂-阳极氧化法在纯钛基体上构造微纳复合粗糙结构,并使用商用氟碳罩光漆直接对其进行修饰获得超疏水性表面。利用傅里叶变换红外光谱(FTIR),场发射扫描电子显微镜(FE-SEM)和接触角测试等技术对超疏水性表面的化学组成、表面形貌、润湿性和表面耐久性进行了研究。结果表明:喷砂处理在钛基表面构筑微米级凹坑,阳极氧化通过形成网状氧化膜在钛基表面构造纳米级结构,氟碳罩光漆修饰该微纳复合粗糙表面后,为表面引入大量含氟基团,使其获得超疏水性能。超疏水性表面与纯水的静态接触角达162°±2.3°,滚动角为2.1°±0.2°,具有优异的环境耐久性。In order to reduce the preparation cost of the superhydrophobic surface on titanium sub- strate and improve its durability, sandblasting and anodic oxidization were used to construct a micro/ nanometer scale rough surface on pure Ti substrate, and then the superhydrophobic surface was ob- tained via further modification by fluorine carbon varnish. The chemical composition, morphology, wettability and environment durability of the superhydrophobic surface were investigated by FTIR, FE-SEM and contact angle measurement respectively. The results show that the structure at micron level is fabricated by sandblasting while the nano-web structure is prepared by anodizing. After modi- fied by fluorine carbon varnish, this micro/nanometer scale rough surface contained masses of fluoride groups and attains superhydrophobicity. The superhydrophobic surface has a static contact angle of 162°±2.3° with the sliding angle of 2.1°±0.2° and shows excellent air and seawater durability.

关 键 词：钛 阳极氧化 超疏水 氟碳罩光漆 

分 类 号：TG174[金属学及工艺—金属表面处理]