4:00 PM - 6:00 PM
[19p-P10-2] Temperature-dependent transmittance and wettability on solid/liquid infused surface
Keywords:biomimetics,multifunctional adaptive materials,surface wettability
Inspired by bio-interfacial materials such as lotus leaves, pitcher plants and fish scales, researchers have developed a novel strategy to control surface wettability and transparency. In particular, liquid infused surfaces have achieved great success in obtaining a low-adhesion surface and high transmittance via introducing a liquid layer. Furthermore, smart surfaces which can change their surface properties conveniently according to external stimuli have aroused much interest recently for pure scientific researches and industrial applications. As one of the most excellent smart surface material, poly(N-isopropylacrylamide) (PNIPAM) coating can change its wettability and transmittance readily with changes of environmental temperature. On the other hand, slippery liquid infused porous surfaces, called SLIPS, is a successful example, forming air/liquid/oil/solid (ALOS) four-phase system, to achieve a switching adhesion and tunable transparent surface by a graded mechanical stimulus. Despite a considerable amount of effort, however, it remains difficult to produce temperature responsive ALOS surfaces at ambient temperature and pressure due to non-reactive lubricant oil as a building block of the previous ALOS surfaces. Therefore, the focus of the present study was on developing multifunctional materials that adapt dynamically to temperature changes. Herein, we demonstrate temperature responsive solid/liquid infused porous surfaces with simultaneous control of its transparency and ability to manipulate water droplets from free sliding to pinned at room temperature. Such further study of temperature dependent ALOS four-phase system would also be valuable to the field of antifouling and tunable optical transparent surfaces for novel medical applications, smart-windows and so on.