A Durable and Self-Cleaning Superhydrophobic Surface Prepared by Precipitating Flower-Like Crystals on a Glass-Ceramic Surface

Materials

Lanlin Yi¹  Haiqing Fu¹  Shuo Liu¹  Changjiu Li¹  Hong Jiang¹  Yongjun Chen² 

[1] Special Glass Key Lab of Hainan Province, Haikou 570228, China;State Key Laboratory of Marine Resource Utilization in South China Sea, Hainan University, Haikou 570228, China;

关键词: glass-ceramic;    crystallization;    dual-scale roughness;    superhydrophobic;    durable;    self-cleaning;   

DOI  :  10.3390/ma13071642

来源: DOAJ

【 摘 要 】

Herein, a superhydrophobic surface with superior durability was fabricated on a glass-ceramic surface by crystallization, hydrofluoric acid (HF) etching, and surface grafting. The as-prepared glass-ceramic surface was composed of three-dimensional flower-like micro-clusters, which were self-assembled from numerous nanosheets. Such a dual-scale rough surface exhibited superhydrophobicity, with a water contact angle (WCA) of 170.3° ± 0.1° and a sliding angle (SA) of ~2° after grafting with 1H, 1H, 2H, 2H-perfluorodecyltriethoxysilane (FAS-17). This can be attributed to the synergistic effect between the dual-scale structure and surface chemistry. Furthermore, this surface exhibited excellent self-cleaning properties, stability against strong acid and strong alkali corrosion, and anti-stripping properties.

【 授权许可】

Unknown