Preparation process and construction method of PTFE-based anti-icing composite film based on radio frequency plasma treatment

Abstract

The invention discloses a preparation process of a PTFE-based anti-icing composite film based on radio frequency plasma treatment. The preparation process comprises the steps of S1, coating one surface of PTFE subjected to low-temperature plasma micro-nano etching with a layer of protective film; S2, performing surface activation treatment on the surface, which is not covered with the protective film, of the PTFE in the step S1, and performing activation or grafting treatment on the surface, which is not covered with the protective film, of the PTFE in the step S1 by adopting a radio frequency plasma energy supply mode to form a new active group and a surface activation structural layer; S3, uncovering the protective film with a certain length at the tail end of the surface, which is coated with the protective film, of the PTFE, and performing radio frequency plasma activation treatment; S4, performing surface activation structure layer compounding on the surface, which is not coated with the protective film, of the PTFE and high-toughness cold bonding glue; and S5, covering the cold bonding glue surface with an isolating film. According to the invention, the cold bonding glue surface and the etching surface of the composite film are subjected to surface activation treatment, so that the adjacent composite films and the head and tail parts are mutually lapped, and edge warping or icing at joints is prevented.

Description

technical field [0001] The invention relates to the technical field of polymer composite materials, in particular to a preparation process and construction method of a PTFE-based anti-icing composite film based on radio frequency plasma treatment. Background technique [0002] Wind power is a clean energy with huge resource potential and basically mature technology. It has become the core content of my country's energy transformation and an important way to deal with climate change. An important means to promote the prevention and control of air pollution. The most direct impact of icing on wind turbine blades is the loss of power generation and electricity revenue and the risk of sharing the safe operation of the unit. [0003] The anti-icing film applied to the wind power blades can not only prevent the anti-icing function of the blades, but also improve the aerodynamic performance of the blade airfoil and improve the operating efficiency of the blades. At the same time, ...

AI Technical Summary

Problems solved by technology

The wind turbine blade material is basically a glass fiber reinforced composite material composed of a thermosetting polyester base material, which has a limited operating temperature range of -40°C to 50°C, and the PTFE film is not suitable for welding with wind turbine blades.

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