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sawir qaade

Photoinitiator, oo sidoo kale loo yaqaano sawir-qaadista ama wakiilka sawir-qaadista, waa nooc ka mid ah wakiilka synthetic kaas oo nuugi kara tamarta hirarka dhererka qaarkood ee gobolka ultraviolet (250 ~ 420nm) ama gobolka muuqda (400 ~ 800nm) oo soo saara xagjirayaal bilaash ah iyo cations.
Si loo bilaabo monomer-polymerization-ka xeryahooda la daaweeyay ee isku-tallaaban.

Unugyada bilawga ah ayaa leh awood nuugista iftiinka ee gobolka ultraviolet (250-400 nm) ama gobolka muuqda (400-800 nm).Ka dib markii uu nuugo tamarta iftiinka si toos ah ama si dadban, molecule-ka bilawga ayaa ka wareegaya gobolka dhulka una gudbaya xaalad kacsan, ka dibna wuxuu u boodaa gobolka xiisaha leh ee saddex-geesoodka ah isagoo dhex maraya nidaamka isdhexgalka.
Ka dib markii dawlado keli ah ama saddex-geesood ah ay ku faraxsan yihiin inay maraan fal-celin kiimikaad monomolecular ama bimolecular, jajab firfircoon oo bilaabi kara polymerization monomers ayaa la soo saaraa, jajabyadan firfircooni waxay noqon karaan xag-jiryo xor ah, cations, anions, iwm.
Marka loo eego habab kala duwan oo bilaw ah, sawir-qaadayaasha waxaa loo qaybin karaa sawir-qaadayaasha polymerization-ka bilaashka ah iyo sawir-qaadayaasha cationic, kuwaas oo ka mid ah kuwa ugu isticmaalka badan.