Some knowledge points of water-based baking varnish resin

Date:

2020-12-23

Water-based baking paint resins are widely used as high weather-resistant decorative and high corrosion-resistant coatings. At present, PVDF and FEVE are mainly used in water-based baking varnish resins on industrial assembly lines. Fluorocarbon resins mainly use organic solvents as dispersion media, which will volatilize a large amount of solvents during production and use, causing pollution. As the country's requirements for environmental protection become more and more stringent, especially the introduction of the new environmental protection law, the consumption tax on coatings with volatile organic matter content greater than 420g/L under construction will exert greater pressure on low-profit enterprises. For the coatings industry, under more stringent environmental protection laws, there is an urgent need for environmentally friendly products

Water-based baking paint resins are widely used as high weather-resistant decorative and high corrosion-resistant coatings. At present, the main water-based baking varnish resins used in industrial assembly lines arePVDFandFEVEAmong them, fluorocarbon resins mainly use organic solvents as dispersion media, which will volatilize a large amount of solvents during production and use, causing pollution. With the country's increasingly stringent requirements for environmental protection, especially the introduction of the new environmental protection law, the content of volatile organic compounds under construction is greater420g/LThe consumption tax on coatings is more pressure on low-profit companies. For the coating industry, under the more stringent environmental protection law, there is an urgent need for environmentally friendly products to meet the requirements of the coating production line. In the field of strong weather resistance, water-based baking varnish resin plays an irreplaceable role. In order to meet the new environmental requirements, high solid and low viscosity, powder and water is imperative.

The performance characteristics and classification of water-based paint resins: Many literatures detail the synthesis principle and performance characteristics of water-based paint resins, which are not discussed in this paper. At present, domestic and foreign companies research and development of water-based paint resin mainly has the following.

1Water-basedPVDF. There are mainlyAkomaand Daikin; this resin is mainly emulsion polymerization.

2Water-basedFEVE. There are mainly Asahi Glass and Changshu Zhonghao; the synthesis and post-emulsification of this resin emulsion are introduced.

3Water-based fluorine-containing acrylic acid. Most domestic manufacturers mainly focus on this type; this type of resin is mainly emulsion synthesis, but also introduced some post-emulsion products.

In this paper, the water-based paint resin is water-based.FEVEand aqueous fluorinated acrylic acid.DF-M05AdoptFEVEType post-emulsification process production,DF-S06The use of fluorine-containing acrylic acid type post-emulsification process production,DF-03Produced by fluorine-containing acrylic emulsion synthesis process, the three types of resins are suitable for different applications.

Application areas of waterborne paint resins: Since the development of waterborne paint resins, they have been used in many fields. The earliest and largest application area is in the field of exterior walls, from the earliest exterior wall coatings to the later imitation aluminum plate coatings, the coverage of water-based true stone paint, and the coverage of water-based colorful coatings. There are few reports on water-based fluorocarbons in the industrial field, and some manufacturers are promoting the application in the fields of anti-corrosion, curtain wall, aluminum profile, plastic, coil, inorganic prefabricated board, etc.

Water-based baking varnish resin

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