▎ 摘　　要

NOVELTY - A graphene-based super-sliding surface with photoresponse is composite film material comprising film material and low-surface energy phase change material from bottom to top. The film material is a periodic grating-composite thin film material comprising laser-modified polyvinylidene fluoride and material with photothermal response. When exposed to external light, the periodic grating-composite film material having excellent photothermal conversion ability converts light into heat energy, and the low surface energy phase change material absorbs the heat energy and melts, and the liquid drops slide. When the external light is turned off or removed, the temperature of the low-surface energy phase change material decreases and then solidifies, the droplet is on the super-sliding surface, and the droplet sliding on the super-sliding surface is realized and controlled in a non-contact manner. USE - Graphene-based super-sliding surface with photoresponse. ADVANTAGE - The graphene-based super-sliding surface has excellent photoresponse performance, strength and toughness. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for preparation of the graphene-based super-sliding surface with photoresponse, which involves dissolving polyvinylidene fluoride powder in N,N-dimethylformamide, stirring, ultrasonically processing in ultrasonic machine, adding graphene powder, stirring to obtain mixture, drop-coating the mixture on a glass sheet, then placing in an oven for heating and drying to obtain composite film, fixing the composite film flat on the sample stage using 3M (RTM: high-performance acrylic foam tape) tape to ensure that the film surface is relatively flat, adjusting the relative position of the UV-light source and the sample stage, and ensuring that the laser is focused on the film surface, inputting the set processing parameters and the pre-processed pattern in the laser control program, then starting the laser scanning processing to obtain the periodic grating-composite thin film material, placing the low-surface energy phase change material on the surface of the periodic grating-composite thin film material, placing it in oven until the low-surface energy phase change material melted into a liquid and completely penetrated into the structure of the rough surface, leaving still until the excess liquid paraffin flows out of the surface, and forming graphene-based super-sliding surface.