Waterborne UV resin Waterborne UV coatings are mainly composed of water-soluble or dispersed resins containing acrylic acid or other unsaturated double bonds. According to the existing form of resins in water, they can be divided into the following three categories: lotion - these UV resins are often formed directly from anhydrous unsaturated polyester or acrylate, and usually need to add 1-2 emulsifiers.
(1) The waterborne UV curable resin is a new type of "green resin" which is safe and environmentally friendly and develops rapidly in recent years. It has a good application prospect in the absorbent substrate. However, in order to ensure the complete evaporation of water, the coating made of water-based UV curing resin as the matrix resin has the disadvantages of relatively long drying time, relatively high drying temperature and relatively harsh process conditions.
(2) The nano composite modification of waterborne UV curable resin can effectively improve the comprehensive performance of the system. Hyperbranched polymer with spherical molecular structure is a new type of UV curable waterborne oligomer with many terminal functionalities and high reactivity of terminal groups. By introducing hydrophilic groups into the molecular chain of the prepolymer, the disadvantages of the traditional UV curable resin, such as poor water resistance and poor flexibility, can be effectively improved.
(3) The dual curing system combines light curing technology with other curing technologies, which can effectively solve the problems such as difficult curing of complex shaped surface coatings.