The initiation principle of photoinitiator, 4-Benzoylphenyl acrylate (CAS No.: 22535-49-5)

Photoinitiators are substances that can absorb radiation energy and chemically change to produce active intermediates with the ability to polymerize. They are also the main components needed in any UV curing system. Photoinitiators can be divided into hydrogen capture type and pyrolysis type. Hydrogen capture type is required and a compound containing active hydrogen (commonly known as a co-initiator) with, through the capture of hydrogen reaction, the formation of free radicals, is a bimolecular photoinitiator; pyrolysi type is the photoinitiator by laser, molecular decomposition into free radicals, is a single molecule of photoinitiator.

With the continuous development of science and technology, a variety of new materials requiring the use of light curing technology continue to emerge, light curing in 3D printing, optical film, microelectronics industry and other emerging industries continue to evolve and iterate. In furniture manufacture and building materials industry, its application areas include hardwood floors, PVC flooring, wood furniture and metal furniture, wood particle board seal primer, etc; In the electronic information industry, it is used in typical products including electric wire, printed circuit board coating, optical fiber, magnetic medium coating, photoresist (photoresist) and so on; In the field of consumer goods, its typical applications include adhesive peeling coatings, leather coatings, plastic substrate coatings, glass lenses for glasses and so on. Due to the diversification of downstream needs, companies in the industry often need to have 8-10 photoinitiator products, and most photoinitiator manufacturers have the ability to supply only one or a few product models.