External emulsified Waterborne UV coating
The addition of emulsifier improves the shear force and solves the problem of water dispersibility. The non-ionic self emulsifying Waterborne UV coating abandons the method of adding emulsifier and adds hydrophilic structure to the polymer. Although it also solves the problem of water dispersion, it reduces the water resistance and corrosion resistance. Ionic self emulsifying Waterborne UV coatings add ionic groups to the polymer skeleton to improve the water solubility of the polymer and make the shear properties of Waterborne UV coatings more stable.
Application of Waterborne UV coatings in different fields
The application of varnish in Waterborne UV paint on the surface of wood makes the surface grain of wood more expressive, thus increasing the aesthetic feeling of wood. Due to the low toxicity, low irritation and rapid curing performance of Waterborne UV coatings, Waterborne UV coatings are more suitable for wood than traditional coatings, and the application of Waterborne UV coatings is soft and not easy to cause damage to the surface of wood. When traditional coatings are used on wood surfaces, they are usually affected by oxygen, which prolongs the curing time, but Waterborne UV coatings effectively solve this problem.
Waterborne UV paint can also be used as paper polishing oil. Polishing oil is a liquid covering the surface of printed matter, which plays a role in waterproof, and can also increase the wear resistance and gloss of paper. At present, the most commonly used paper polishing oil in China is water-based UV coating. This coating not only has high environmental protection performance, but also uses water to replace the dilution solvent when diluting the coating, which effectively reduces the VOC content, reduces the damage caused by the coating to the human body as much as possible, and is convenient for the recycling of paper. Therefore, the development prospect of water-based UV coating is extremely broad.
Add an appropriate amount of functional alkenes to the waterborne UVB coating, which will react with the active polymer to rearrange the molecules on the surface of the cured film, so that some patterns will appear on the surface of the cured film of the coating. Due to the different structures of polymers, the patterns are also different. However, by controlling the structure of polymers, the types of patterns can be controlled, which provides a new idea for the development of coatings. This technology can be applied to the direction of appearance decoration and anti-counterfeiting. In addition, the technology can also be applied to electronic materials and molecular design. In addition, by adding an appropriate amount of thermal insulation additives to the Waterborne UV coating, the thermal insulation coating can be prepared. The coating is colorless and transparent, has good thermal insulation effect, and has good wear resistance, hardness, waterproof and corrosion resistance.
Post time: Jun-01-2022