UV-cured resins are a type of low-molecular-weight photosensitive resin that contain groups capable of undergoing photopolymerization reactions, such as unsaturated double bonds or epoxy groups. These resins form the core component of UV-cured products, including UV coatings, UV inks, and UV adhesives. Their properties largely determine the performance of the cured material.
The primary types of photocurable resins currently used in the market include epoxy acrylate, polyurethane acrylate resins, polyester acrylate resins, amino acrylate resins, and photoimaging alkaline-soluble resins.
Characteristics and Applications of Various Photocurable Resins
1. Polyurethane Acrylate Resins
Polyurethane acrylate resins are widely used and are the most common type of photocurable resin. These resins offer excellent comprehensive properties, such as:
• Outstanding abrasion resistance
• Flexibility
• Good chemical resistance
• Impact resistance
• Strong electrical properties
• Excellent adhesion to substrates like plastic
These properties make them ideal for use in UV-cured coatings for paper, wood, plastics, and metals, as well as in UV inks and adhesives. The primary types include aromatic and aliphatic polyurethane acrylate resins.
2. Polyester Acrylate Resins
Polyester acrylate resins are another common type of photocurable resin, known for:
• Low odor
• Low irritation
• Good flexibility
• Excellent pigment wetting properties
They are often combined with epoxy acrylate and polyurethane acrylate resins in UV-cured colored coatings and inks
Post time: Oct-11-2024
