UV resin

UV resin, also known as photosensitive resin, is an oligomer that can undergo physical and chemical changes in a short time after being exposed to light, and then crosslink and solidify It is a photosensitive resin with low relative molecular weight, and has reactive groups that can conduct UV, such as unsaturated double bonds or epoxy groups·

UV resin is the matrix resin of UV coatings. It is compounded with photoinitiator, active diluent and various additives to form UV coatings·

UV resin, also known as photosensitive resin, has the following properties: cross-linked and cured oligomer. UV resin is the matrix resin of UV coating, and its advantages are as follows:

(1) Fast curing speed and high production efficiency;

(2) High energy utilization and energy conservation;

(3) Less volatile organic compounds (VOC), environmentally friendly;

(4) Can be coated with various substrates, such as paper, plastic, leather, metal, glass, ceramics, etc;
UV resin is the largest component in UV coatings and the matrix resin in UV coatings. It generally has groups that further react or polymerize under light conditions, such as carbon carbon double bonds, epoxy groups, etc. According to different solvent types, UV resins can be divided into solvent based UV resins and water-based UV resins Solvent based resins do not contain hydrophilic groups and can only be soluble in organic solvents, while water-based resins contain more hydrophilic groups or hydrophilic chain segments and can be emulsified, dispersed or dissolved in water.

Classification

Solvent based UV resin

Commonly used solvent based UV resins mainly include: UV unsaturated polyester, UV epoxy acrylate, UV polyurethane acrylate, UV polyester acrylate, UV polyether acrylate, UV pure acrylic resin, UV epoxy resin, UV silicone oligomer.

Waterborne UV resin

Waterborne UV resins refer to UV resins that can be dissolved in water or can be dispersed in water. The molecules contain a certain number of strong hydrophilic groups, such as carboxyl, hydroxyl, amino, ether, acylamino, etc., as well as unsaturated groups, such as acryloyl, methacryloyl or allyl. Waterborne UV trees can be divided into three types: lotion type, water dispersed type and water soluble type It mainly includes three categories: waterborne polyurethane acrylate, waterborne epoxy acrylate and waterborne polyester acrylate.
The main application fields of UV resin include UV coatings, UV inks, UV adhesives, among which UV coatings are the most widely used, including the following types of UV waterborne coatings, UV powder coatings, UV leather coatings, UV optical fiber coatings, UV metal coatings, UV paper glazing coatings, UV plastic coatings, UV wood coatings.