强稳定性超疏水F-DLC涂层的制备与性能研究  

Fabrication and Properties of Robust Superhydrophobic F-DLC Coatings

作　　者：吴忠灿 刘亮亮 唐伟 杨超 马正永 WU Zhong-can;LIU Liang-liang;TANG Wei;YANG Chao;MA Zheng-yong(School of Advanced Materials,Shenzhen Graduate School,Peking University,Shenzhen 518055,China)

机构地区：[1]北京大学深圳研究生院新材料学院

出　　处：《真空》2019年第6期30-35,共6页Vacuum

基　　金：国家材料基因组计划(2016YFB0700600);深圳市科技计划自由探索项目(JCYJ20170818150601930)

摘　　要：超疏水表面由于其特殊的浸润性,在自清洁、防结冰、水中减阻等领域具有重要的应用价值,受到了研究者的广泛关注。但是超疏水性能的实现大多需要低表面能的有机材料修饰,因此其耐高温、抗老化及耐磨等方面的性能较差,无法满足长寿命的工程应用。本文通过激光刻蚀在不锈钢基底上进行表面织构化,在此基础上沉积了掺氟的类金刚石涂层(F-DLC),实现了其对水滴高达152°的接触角,并研究了其抗老化、耐高温及耐磨损等方面的性能。结果表明制备的超疏水涂层在日照120天及350℃以下高温环境下均能保持150°以上的疏水角,在与304不锈钢对磨20000次后仍可保持130°以上的接触角,说明该涂层具有极佳的抗老化、耐高温及耐磨稳定性,在航空航天、海洋装备等领域具有广泛的应用前景。Superhydrophobic surfaces have possible crucial applications in self-cleaning, anti-icing and water drag reduction in water due to its unique wetting properties, which thus become eye-catching in recent years. However, most superhydrophobic surfaces are achieved by modification of organic materials with small surface energy, resulting in poor performances at high temperature, aging and tribology fields. In this paper, we present a robust superhydrophobic surface constructed by a special surface texture and a F-DLC modification layer. It realizes a water contact angle(WCA) of 152°, and the high temperature resistance, aging resistance and wear resistance are studied. The results show that the coating maintains the superhydrophobic properties after exposing to sunlight of 120 days and high temperature up to 350 ℃. After the wear testing against to 304 stainless steel for 20000 cycles, a high WCA more than 130° can still be obtained. The results suggest that the coating shows excellent robustness in high temperature, aging and wear, which promises the durable applications in aerospace, marine equipment and other engineering fields.

关 键 词：超疏水 激光处理 F-DLC 耐磨性 稳定性 

分 类 号：TG174.453[金属学及工艺—金属表面处理] TG115.58[金属学及工艺—金属学]