A kind of preparation method of porous polyvinylidene fluoride superhydrophobic coating

Abstract

The invention discloses a method for preparing a porous polyvinylidene fluoride superhydrophobic coating, which comprises the following steps: mixing polyvinylidene fluoride and N,N-dimethylformamide, stirring, and mixing the obtained transparent solution with perfluorodecyl Triethoxysilane is mixed and stirred, and the obtained perfluorodecyltriethoxysilane mixed solution is mixed with composite nano-titanium dioxide particles, stirred, and ultrasonically treated, and the obtained porous polyvinylidene fluoride superhydrophobic coating is coated or sprayed on the substrate A porous polyvinylidene fluoride superhydrophobic coating was obtained. The preparation method of the present invention has the advantages of simple process, convenient operation, cheap raw materials, and easy industrial production, and can prepare superhydrophobic coatings with excellent superhydrophobic performance, strong anti-icing ability, strong weather resistance and strong applicability on a large scale, and can be widely used. The anti-icing treatment of wind turbine blades is of great significance for improving the performance and power generation of wind turbines, and has high use value and good application prospects.

Description

technical field [0001] The invention belongs to the technical field of super-hydrophobic coatings, and relates to a method for preparing a porous polyvinylidene fluoride super-hydrophobic coating. Background technique [0002] In recent years, natural energy resources such as coal and oil have been decreasing due to the large amount of energy resources consumed in industry and daily life. In order to solve the energy crisis, wind power projects have attracted much attention. In a wind power generation system, wind turbine blades are an important part of obtaining wind energy. However, wind turbine blades exposed to cold climates are often found to develop icing. Ice that forms on wind turbine blades can cause serious problems if not removed in time. [0003] In order to ensure the maximum reliability of wind turbine blades and reduce economic losses caused by icing, there are currently the following two methods to reduce or eliminate the phenomenon of ice accumulation on ...

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Problems solved by technology

[0004] At present, the methods for preparing superhydrophobic coatings include: sol-gel method, plasma fluorination method, electrospinning method, etc. However, although the coatings prepared by these methods are effective, the manufacturing process is complicated and the cycle is long. Long, for equipment with a large demand such as fan blades, the requirements for the preparation methods of the existing superhydrophobic coatings, therefore, how to prepare fan blades in a simple, convenient, low-cost, high-efficiency, large-scale The super-hydrophobic coating is very important for improving the performance and power generation of wind turbines

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