The light curing resin is composed of monomer and oligomer, which contain active functional groups and can be polymerized by light initiator under ultraviolet light to generate insoluble film. Photocurable 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 cure. UV curable resin is a kind of photosensitive resin with low relative molecular weight, which has reactive groups that can be UV curable, such as unsaturated double bonds or epoxy groups. UV curable resin is the matrix resin of UV curable coatings. It is compounded with photoinitiators, active diluents and various additives to form UV curable coatings.
The light curing resin is composed of resin monomer and oligomer, which contains active functional groups. It can be polymerized by light initiator under ultraviolet light to generate insoluble film. Bisphenol A epoxy acrylate has the characteristics of fast curing speed, good chemical solvent resistance and high hardness. Polyurethane acrylate has the characteristics of good flexibility and wear resistance. Light cured composite resin is a commonly used filling and repairing material in stomatology. Because of its beautiful color and certain compressive strength, it plays an important role in clinical application. We have achieved satisfactory results in repairing various defects and cavities of anterior teeth.
The UV curable coating is an environment-friendly energy-saving coating developed by Bayer Company in Germany in the late 1960s. China has entered the field of UV curable coatings since the 1980s. At the early stage, the production of UV curing resin was mainly made by companies such as American Sadoma, Japanese Synthetic, German Bayer and Taiwan Changxing. Now, many domestic manufacturers are doing well, such as Sanmu Group and Zicai Chemical. In recent years, with the enhancement of people's awareness of energy conservation and environmental protection, the variety performance of UV curable coatings has been continuously enhanced, the application field has been expanded, and the output has increased rapidly, showing a rapid development momentum. Especially after the coatings are included in the scope of consumption tax collection, the development of UV resin [1] is expected to further accelerate. UV curable coatings are not only widely used in paper, plastic, leather, metal, glass, ceramics and other substrates, but also successfully used in optical fiber, printed circuit board, electronic component packaging and other materials.
Post time: Oct-17-2022