摘要
提高耐磨性能是推动仿生超疏水表面走向实际应用的关键挑战之一。设计了二氧化铈微米粒子增强PMMA/PVDF超疏水复合涂层配方,获得了水珠接触角达152°、水珠滚动角为5°的超疏水复合涂层。该涂层经过落砂磨损试验后接触角下降为103°、滚动角增大为20°。采用碳纤维颗粒对CeO2/PMMA/PVDF超疏水复合涂层进行增强,优化配方的接触角达153°、滚动角达到5°。经过相同落砂磨损试验后,增强后的复合涂层水珠接触角能在一定程度磨损后达到140°左右。可见,CeO2/PMMA/PVDF复合涂层具有良好的超疏水性能,碳纤维颗粒增强是提高该涂层耐磨性能的有效方法。
Wear-resistance property acts as a key point tObio-inspired superhydrophobic surface for real application environment.CeO2 micrOparticles filled PMMA/PVDF composite coating was prepared by surface coating method in this study.In addition,carbon fiber particles were used tOreinforce CeO2/PMMA/PVDF composite coating.The results revealed that the best water contact angle(WCA)of CeO2/PMMA/PVDF was 152°,the slide angle(SA)was 5°,the best WCA and SA of carbon particles reinforced CeO2/PMMA/PVDF were 153°and 5°respectively.After abrasion test,the WCA of CeO2/PMMA/PVDF decreased tO103°,and the SA increased tO20°.While carbon particle reinforced CeO2/PMMA/PVDF coating was able tOmaintain 140°after same abrasion test.It indicates that adding carbon particles is an effective method tOimprove wear-resistance of CeO2/PMMA/PVDF superhydrophobic composite coating and has prosperous potentiality towards mechanical robust water repellent coating.
作者
李为民
彭超义
吴彬瑞
LI Weimin;PENG Chaoyi;WU Binrui(College of Aerospace Science and Engineering,National University of Defence Technology,Changsha 410073)
出处
《材料导报》
EI
CAS
CSCD
北大核心
2017年第A01期334-337,350,共5页
Materials Reports
基金
国家自然科学基金(51203183)
关键词
超疏水
耐磨性能
复合涂层
二氧化铈
碳纤维颗粒
superhydrophobicity
wear-resistance
composite coating
CeO2
carbon particle
