超疏水表面线性磨损试验方法研究  

Research on Linear Wear Test Method for Superhydrophobic Surface

作　　者：张伟杰 肖凯巍 唐晓旭 黄凌豪 王肖欣 ZHANG Weijie;XIAO Kaiwei;TANG Xiaoxu;HUANG Linghao;WANG Xiaoxin(China Academy of Building Research,Beijing 100013,China)

机构地区：[1]中国建筑科学研究院有限公司,北京100013

出　　处：《材料导报》2024年第S02期538-543,共6页Materials Reports

基　　金：中国建筑科学研究院有限公司青年科研基金(20230112331030036)。

摘　　要：目前超疏水表面耐久稳定性测试中主要以砂纸为磨损材料进行线性磨损试验。由于没有统一标准,文献中试验条件各不相同。本文通过综述国内外相关文献,针对砂纸线性磨损试验条件给出建议:采用单次线性磨损方式,在磨损过程中样品旋转90°以获得横纵向均匀磨损;施加载荷合适即可,不宜过小也不宜过大;选择磨损后不因粗糙度变化而引起疏水性剧烈变化的砂纸。研究构建砂纸目数、载荷、磨损距离与磨损量的关系,采用倍数相乘的方式实现了不同条件下线性磨损能力的对比,使得不同文献中各异的磨损条件下的试验结果具有可比性。接触角和滚动角依然是表征磨损前后疏水性能的有效参数,也可以考虑采用垂直表面最大液滴直径作为表征参数,不建议采用摩擦系数作为表征参数。At present,the durability and stability test methods for superhydrophobic surfaces mainly use sandpaper for linear wear tests.Due to the lack of a unified standard,the test conditions in the literature vary.Through research,this paper gives suggestions for the linear wear test conditions of sandpaper.It is recommended to adopt a one-way linear wear,and rotate the sample by 90°during the wear process to obtain uniform longitudinal and transverse wear;appropriate load is suggested,neither too large nor too small;it is suggested to adopt the sandpaper that does not have a massive change in hydrophobicity led by changes in roughness after wear.This research constructed the relationships among the grit number of sandpaper,load,and wear distance with the wear extent.Through multiplication,the comparison of linear wear capabilities under different conditions was achieved,making the test results under various wear conditions in different literatures comparable.The contact angle and the rolling angle are still effective parameters to characterize the hydrophobic performance before and after wear.The diameter of the maximum droplet on the vertical surface can also be considered as a characterization parameter.The friction coefficient is not recommended as a characterization parameter.

关 键 词：超疏水表面 线性磨损 磨损能力对比 表征参数 

分 类 号：TU57[建筑科学—建筑技术科学]