Preparation method for and use of PTFE-based nano functional composite membrane

Disclosed are a preparation method for and the use of a PTFE-based nano functional composite membrane, relating to the technical field of polymer composite materials. The PTFE-based nano functional composite membrane can be applied to winter icing prevention and salt spray corrosion prevention of various types of wind turbine generator blades, can improve the airfoil aerodynamic performance of the wind turbine blades, can enhance the overall surface strength of the blades so as to protect the blades against aging erosion, and is of a new generation of multi-effect brand-new composite membrane material which can be directly expanded and applied to the industrial fields of marine fouling organism adhesion prevention and corrosion prevention for steel pipe piles of offshore wind power plants and offshore platforms, snow accumulation and icing prevention of high-voltage transmission towers and cables, snow accumulation prevention and icing prevention of bridges (stay cables and suspension cables), etc.