ozi

fotoinitiator

Photoinitiator, nke a makwaara dị ka photosensitizer ma ọ bụ onye na-ahụ maka foto, bụ ụdị ihe na-emepụta ihe nke nwere ike ịmịnye ike nke ụfọdụ wavelength na mpaghara ultraviolet (250 ~ 420nm) ma ọ bụ mpaghara a na-ahụ anya (400 ~ 800nm) ma mepụta radicals na cations n'efu.
Iji bido monomer polymerization nke ogige ndị a gwọrọ jikọtara ọnụ.

Molecule onye mbido nwere ụfọdụ ikike nnabata ọkụ na mpaghara ultraviolet (250-400 nm) ma ọ bụ mpaghara a na-ahụ anya (400-800 nm).Mgbe ọ nwetasịrị ike ọkụ ozugbo ma ọ bụ na-apụtaghị ìhè, molecule initiator na-esi na steeti ala gaa na steeti singlet na-akpali akpali, wee wụba na steeti atọ nwere obi ụtọ site na intersystem.
Mgbe steeti singlet ma ọ bụ atọ nwere obi ụtọ na-enweta mmeghachi omume kemịkalụ monomolecular ma ọ bụ bimolecular, a na-emepụta iberibe ihe ndị nwere ike ịmalite polymerization nke monomers, na iberibe ndị a na-arụ ọrụ nwere ike ịbụ radicals n'efu, cations, anions, wdg.
Dị ka usoro mmalite dị iche iche si dị, ndị na-ese foto nwere ike kewaa n'ime ndị na-emepụta ihe na-emepụta ihe na-emepụta ihe na-emepụta ihe na-emepụta ihe na-emepụta ihe na-emepụta ihe na-emepụta ihe na-emepụta ihe na-emepụta ihe na cationic photoinitiators, nke a na-ejikarị eme ihe.