A self-cleaning coating, a self-cleaning coating layer and a photovoltaic panel comprising the same

By combining nano-titanium dioxide, low surface energy modifiers, and water-based film-forming agents, an optimized ratio is used to form a self-cleaning coating with superhydrophobicity and long-lasting adhesion. This solves the problems of poor adhesion, short lifespan, and unstable performance of existing photovoltaic panel coatings, achieving efficient self-cleaning and antibacterial properties, making it suitable for large-scale applications.

CN122168092APending Publication Date: 2026-06-09三峡新能源金昌风电有限公司 +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
三峡新能源金昌风电有限公司
Filing Date
2026-02-11
Publication Date
2026-06-09

AI Technical Summary

Technical Problem

Existing self-cleaning photovoltaic panel coatings have poor adhesion, short lifespan, high cost, and unstable performance, making them difficult to apply on a large scale and unable to achieve automatic cleaning after rain.

Method used

A combination of nano-titanium dioxide, low surface energy modifier, water-based film-forming agent and water is used to form a self-cleaning coating with superhydrophobicity and long-lasting adhesion by optimizing the ratio. The photocatalytic effect and micro-rough structure of nano-titanium dioxide are utilized, combined with the chemical bonding of silane coupling agent to improve adhesion and compatibility.

Benefits of technology

It achieves superhydrophobicity and long-lasting adhesion of self-cleaning coating, with a service life of more than 5 years, significantly reducing operation and maintenance costs and improving power generation efficiency by 8%-15%, making it suitable for large-scale production.

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Abstract

This disclosure relates to the field of coating technology, and more particularly to a self-cleaning coating, a self-cleaning coating itself, and a photovoltaic panel containing the same. By weight, the self-cleaning coating comprises 40-60 parts of nano-titanium dioxide, 5-15 parts of a low surface energy modifier, 20-40 parts of an aqueous film-forming agent, and 20-40 parts of water. This disclosure, through the selection of suitable components and optimization of a reasonable component ratio, yields a water-reactive self-cleaning coating with superhydrophobicity and long-lasting adhesion, with a service life of over 5 years. Furthermore, its preparation method is simple, and the raw material cost is low. When applied to the surface of a photovoltaic panel, it can reduce the frequency of manual cleaning by more than 80%, significantly reducing maintenance costs. Moreover, by maintaining the cleanliness of the photovoltaic panel surface, its power generation efficiency can be further improved, demonstrating good economic value and suitability for large-scale production.
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