可再生柔性光热电热超疏水涂层的防/除冰特性OA

To address the surface icing problems of wind turbine blades and power transmission lines,a renewable flexible photothermal-electrothermal superhydrophobic coating was developed using spraying methods.Firstly,durable flexible sandpaper was employed as the micro-scale rough layer.Secondly,a silicone-based adhesive was used to fix the electrothermal layer between the micro-scale rough layer and a flexible silicone substrate.Finally,a photothermal superhydrophobic material was sprayed to complete the coating preparation.The results show that the coating had a contact angle of 152.78° and a sliding angle of 2.03°,with a light absorption rate as high as 96.6%.At a light intensity of 1 kW/m2,the coating surface temperature rises to 70.1℃within 750 s,and a 3.0 mm thick ice layer is completely removed within 1 577 s.At an applied voltage of 6 V,the equilibrium temperature of the coating reaches 76.6℃,achieving complete removal of the 3.0 mm thick ice layer in 678 s.The coating demonstrates excellent stability,deformation resistance,and renewability.It can effectively inhibit surface icing and reduce ice accumulation,providing technical support for anti-icing and deicing applications in power systems.