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Introduction of functional coatings
Release time:
2020-04-23
1. Features of functional coatings:
Functional coatings have the functions of absorbing and decomposing toxic and harmful substances, waterproof, fireproof, antifouling, conductive, shielding electromagnetic waves, anti-static, anti-mildew, sterilization, anti-adhesion of marine organisms, high temperature resistance, temperature marking, luminescence, absorption and emission of infrared rays, Absorbing solar energy, shielding rays, logo color, anti-skid, self-lubricating, anti-splashing, anti-noise, shock absorption, anti-condensation and other functions. With the development of the national economy and the advancement of science and technology, functional coatings will provide more and more perfect and more powerful functions at more levels. Its characteristics:
1. Small batches, multiple varieties, and special functions and special properties are the basic characteristics of functional coatings. The coating composition includes four components: film-forming substance, pigment, solvent and auxiliary. In the production process, various chemical, physical, physiological, technical and economic requirements and considerations are derived, and product upgrading is relatively frequent, so the functional coating industry is a high-tech-intensive industry, which requires a lot of manpower. , Material research and development.
2. Strong commerciality is another feature of functional coatings. Functional coating enterprises should pay attention to the coordination of technology development, technology application and technical services. Because functional coatings are highly commercialized, users have high selectivity for commodities, and the market competition is very fierce, technical application and technical services are two important links in the production and application of functional coatings.
2. Classification of functional coatings:
If they are classified according to their functions, they are mainly as follows:
1. Thermal functional coatings: including high temperature resistant coatings, fire retardant coatings, thermal insulation coatings, etc.
2. Functional building energy-saving coatings: including sunscreen coatings, thermal insulation coatings, glass thermal insulation coatings, etc.
3. Chemical functional coatings: including special medium corrosion-resistant coatings, high-temperature corrosion-resistant coatings, and anti-oxidation coatings for ultra-high temperature objects.
4. Electromagnetic functional coatings: mainly high temperature insulating coatings.
5. Mechanical functional coatings: mainly wear-resistant coatings.
6. Interface functional coatings: including self-cleaning coatings, anti-icing coatings, anti-snow coatings, high temperature anti-adhesion coatings, etc. 7. Optical functional coatings: including light reflective coatings, infrared radiation heat dissipation coatings, high temperature and far infrared radiation coatings, etc.
Coating functionality and environmental friendliness
In addition to the above functions, functional coatings must have the following basic properties: 1. Scrub resistance: 2. Strong covering power:. 3. Strong adhesion: 4. Alkali resistance 5 Strong salt spray resistance 6 Strong acid resistance 7. Strong water resistance, etc.
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