摘要: 【目的】针对超疏水涂层在电力系统防冰应用中耐久性不足的问题,研制一种兼具耐磨性与防冰性能的超疏水涂层。【方法】以氟化物改性天然矿粉(主要成分为 SiO2)作为疏水填料,与低表面能有机硅树脂复合,采用喷涂工艺在基底表面构建耐磨超疏水涂层;系统研究疏水填料含量(10%~35%)对涂层性能的影响,通过扫描电子显微镜和接触角测量仪表征涂层微观形貌与润湿性,并利用延迟结冰测试、冰黏附强度测试及砂纸磨损试验综合评价其防冰性能与耐磨性。【结果】当疏水填料含量为 30%时,涂层水接触角大于 160°,表面结冰时间延长至 1 420 s(-10 ℃)冰黏附强度降至 50 kPa以下,且经 200次砂纸磨损后水接触角仍高于 150°;在输电线缆表面应用验证中,超疏水,涂层(SSC-6)使表面水滴结冰时间从 300 s延长至 1 200 s。【结论】本研究成功研制出一种具有卓越耐磨性的超疏水防冰涂层,为输电线路的防冰设计提供了潜在的解决方案。
关键词:
超疏水,
防冰涂层,
耐久性,
输电线路
Abstract: [Objective]To address the insufficient durability of superhydrophobic coating for anti-icing in power systems,this study developed a superhydrophobic coating combining wear resistancewith anti-icing performance.[Methods] Using fluoride-modified natural mineral powder(main component:SiO2)as hydrophobic filler compounded with low-surface-energy silicone resin,a wear-resistant superhydrophobic coating was constructed on substrate surfaces via spraying. The influence ofhydrophobic filler content(10% to 35%) on coating performance was systematically investigated.Coating microstructure and wettability were characterized using scanning electron microscopy andcontact angle measurements;anti-icing performance and wear resistance were evaluated via delayed icing tests,ice adhesion strength tests,and sandpaper abrasion tests.[Results]When the hydrophobic filler content was 30%,the coating exhibited a water contact angle greater than 160°,extended the surface ice formation time to 1 420 s(-10 ℃),reduced the ice adhesion strength to below 50 kPa,and maintained a contact angle above 150° even after 200 cycles of sandpaper abrasion. In the applicationvalidation on power transmission cable surfaces,the superhydrophobic coating(SSC-6)prolonged the droplet freezing time from 300 s to 1 200 s.[Conclusion]A wear-resistant superhydrophobic anti-icing coating was successfully developed,offering a potential solution for the anti-icing design of power transmission lines.
Key words:
superhydrophobic,
anti-icing coating,
durability,
transmission lines
中图分类号:
唐雨婷, 田 盼, 汪 洋, 冯增辉, 刘宇轩, 刘兰轩, 秦卫华. 基于改性天然矿粉的耐磨超疏水涂层制备及防冰性能研究[J]. 涂料工业, 2025, 55(12): 50-55.
TANG Yuting, TIAN Pan, WANG Yang, FENG Zenghui, LIU Yuxuan, LIU Lanxuan, QIN Weihua.
Fabrication of Wear-resistant Superhydrophobic Coatings Using Surface-modified Natural Mineral Powders and Investigation of Their Anti-Icing Properties
[J]. Paint & Coatings Industry, 2025, 55(12): 50-55.