Factory supply Top quality photoinitiator 907 powder

Application field

Photoinitiator 907 is a highly efficient UV photoinitiator used to initiate UV polymerization of unsaturated prepolymerization systems. Such as: acrylic resin and monofunctional and polyfunctional vinyl monomers.
The initiator molecules have a certain light-absorbing ability in the ultraviolet region (250-400 nm) or the visible region (400-800 nm). After directly or indirectly absorbing the light energy, the initiator molecules transition from the ground state to the excited singlet state. Exciting to the triplet state; after the singlet or bimolecular chemistry of the excited singlet or triplet state, active fragments capable of initiating polymerization of the monomers, which may be free radicals, cations, anions, etc., are produced. According to the different initiation mechanism, the photoinitiator can be divided into a radical polymerization photoinitiator and a cationic photoinitiator, wherein a radical polymerization photoinitiator is most widely used.
Photoinitiator 907's unique high absorption properties make it particularly suitable for UV-curable inks and pigmented coatings. UV inks contain a large amount of photoinitiator, which is the photoinitiator that causes the ink to dry quickly during the printing process. These photoinitiators are not stable by themselves, and even in a dark environment, they are highly susceptible to dark reactions, resulting in individual gelatinization nuclei, which in turn cause large-scale gelation, especially when metal inks are preserved. A similar situation. Therefore, it is recommended to store the ink pigment separately from the binder. When it is used, stir it with a large machine.
Highly efficient photoinitiators are used in UV curing systems to provide long-term non-yellowing and extended storage. An initiator specially designed for pigment-based UV-curable coatings, inks, and adhesive colored curing systems. It can be used with initiators such as 184 and ITX. Can be used in pigmented ink systems, paper/metal and plastic varnishes and electronic inks. It can also be used as an ultraviolet absorber in industries such as cosmetics. The recommended addition amount is 2-6%.

Use

Used as an initiator in photocurable materials, UV curable coatings and inks, high-efficiency photoinitiators are used in UV curing systems to provide long-term non-yellowing and extended storage.

Physical property