Development trends of fluorocarbon coatings
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Fluorinated coatings (fluorocarbon paints) possess excellent performance due to the highly stable chemical properties of the carbon-fluorine bonds in fluorine-containing materials. Practice has shown that, in an environment with increasingly severe pollution, fluorocarbon coatings can maintain their durability outdoors for up to 20 years, and their resistance to chemicals can last for over 1500 hours. In some cities in the United States, iconic buildings are decorated with aluminum curtain walls coated in fluorocarbon paint; these have been in use for 30 years without any changes. The excellent properties of fluorocarbon coatings have brought about a qualitative leap in the development of the coating industry. As is well known, although China’s fluorocarbon coating industry started late, it has developed very rapidly. At present, there are mainly two types of products: one is thermoplastic polyvinyl fluoride coatings for high-temperature aluminum curtain walls, and the other is solvent-soluble fluorocarbon paints that cure at room temperature. FEVE fluorocarbon paint can form a film at room temperature or through baking at moderate to low temperatures; it is one of the main types of fluorocarbon coatings in China. In light of the current situation of fluorocarbon coatings in China, experts suggest that, first and foremost, companies should use new monomers for copolymerization modifications, or seek out new fluorine-containing monomers for polymerization in order to develop various types of fluorocarbon coatings. This will improve the application properties of these coatings and open up new uses for them; material innovation can also help to enhance the structure of the industry ； Secondly, products should evolve toward greater functionality, differentiation, and specialization. Building on existing products such as fluorocarbon composite insulation panels, fluororesins specifically designed for aluminum powder, fluororesins tailored for steel structures, and fluororesins used in rolled materials, new products can be developed for applications in construction projects, corrosion protection of steel structures, and metal surface decoration. These new products are particularly suitable for use in areas with harsh natural conditions, such as the Qinghai-Tibet Plateau, where there are large temperature differences between day and night, high radiation levels, and a dry climate ； In addition, it is also necessary to accelerate the development of new products such as thermoplastic perfluoroethylene coatings, anti-corrosion treatments for steel structures, and metal surface decorations, which are particularly suitable for areas with harsh natural conditions like the Qinghai-Tibet Plateau, where there are large temperature differences between day and night, high radiation levels, and a dry climate ； In addition, research on thermoplastic perfluoroethylene and water-based fluororesin coatings should be accelerated, particularly for new products in areas with harsh natural conditions such as the Tibetan Plateau, where there are large day-night temperature differences, high radiation levels, and a dry climate ； In addition, research on thermoplastic perfluoroethylene and water-based fluororesin coatings needs to be accelerated, in order to overcome the challenges associated with using thermoplastic perfluoroethylene coatings, especially in regions such as the Tibetan Plateau, where there are large day-night temperature differences, high radiation levels, and a dry climate.
Specializing in the production of high-temperature PVDF fluorocarbon coatings, room-temperature FEVE fluorocarbon coatings, fluorocarbon powders, and polyaniline-based heavy-duty anti-corrosion coatings
The effect of fluoride content on other properties of fluorinated coatings: Fluorine atoms have low polarity; their surface properties are smooth, giving them non-stick and smooth characteristics. Maintaining a certain level of fluoride content in fluoropolymers enables fluorinated coatings to possess excellent anti-pollution properties and self-cleaning capabilities； Due to the special physical properties of fluorine atoms and their helical three-dimensional arrangement, fluoropolymers exhibit excellent properties such as heat resistance, chemical resistance, and resistance to photochemical degradation. However, excessive fluoride content (such as in TFE copolymers) can also lead to negative effects such as low adhesion, low reflectivity (low gloss), and low polarity (poor solubility, reduced adhesion, and poor compatibility with pigments). In the view of Anti-Corrosion Expert: The self-cleaning properties, non-stick characteristics, and smoothness of fluorocarbon coatings are, in fact, in a relationship of conflict with the adhesion strength of these coatings. The fluorine content in fluorocarbon paint is an important indicator; it varies depending on the type of polymer, and its level has different effects on performance, so it needs to be considered separately. Based on the application environment and performance requirements, an optimal balance between fluorine content and performance should be achieved; it is not advisable to follow practices blindly.