|About this Abstract
||2017 TMS Annual Meeting & Exhibition
||Recent Developments in Biological, Structural and Functional Thin Films and Coatings
||Synthesis of Self-cleaning, Multi-functional Metal Oxide Coatings by the Atmospheric Pressure Plasma Technique
||Wei-Chen Hung, Ching-Yu Yang, Po-Yu Chen
|On-Site Speaker (Planned)
Self-cleaning coatings have been developed for decades and led to wide applications yet still limited by the expensive and complex processes. In this study, a novel method was used to synthesize mechanically/thermally robust self-cleaning surfaces. The atmospheric pressure plasma technique was utilized to active the substrate surface and created stalagmite-like, hierarchical-structured metal-oxide coatings in a few seconds. The parameters of working power, oxygen flow rate, coating time were evaluated and optimized. After silanization, tungsten oxide coatings exhibit superhydrophobicity and oleophobicity with low sliding angle and self-cleaning capability. Water streaming, sand abrasion tests as well as elevated temperature evaluation were conducted and results showed good mechanical durability and long-term thermal stability. Titanium oxide coatings were also synthesized and post-treated, which demonstrated photocatalytic ability and UV-generated superhydrophilic phenomenon. We developed a facile and cost-effective method to fabricate multifunctional surfaces which could be applied to various substrates in different fields.
||Planned: Supplemental Proceedings volume