Ihame shingiro rya UV ikiza

Gukiza UV bivuga gukiza UV muri sisitemu yo gukiza imirasire (bita UV gukiza).Imirasire yo gukiza imirasire nubuhanga bushya bwicyatsi kibisi, bivuga inzira yo guhita polymerisation no guhuza gukiza kwa sisitemu ya feri ikoresheje urumuri ultraviolet, urumuri rwa electron hamwe na irrasi ya r-ray.Ifite ibyiza byo kuzigama ingufu, gukora neza, gukora neza cyane, gutwika kole, umutekano no kurengera ibidukikije, umucyo mwinshi, igihe kirekire, nibindi. Ibuye risanzwe ubwaryo rifite inenge zimwe na zimwe, nk'ibinogo, ibice, amasahani ataringaniye, nibindi. (byombi granite na marble birahari).

Uburyo bwubwubatsi buranga:

1) Igikorwa cyiza cyane cyo gutwikira: UV ikiza ifite imikorere myiza, ububengerane bwinshi, ubukana bwinshi, hamwe n’imiti irwanya imiti.Gutezimbere neza ubwiza bwo gusana ibyobo byamabuye.

2) Umutekano no kurengera ibidukikije: Kubera ko umuvuduko wo gukiza UV wihuta cyane, imyuka y’imyanda ikomoka mu kirere igabanuka kugeza kuri zeru, itekanye kandi yangiza ibidukikije.

Ihame ry'ibikorwa:

UV itwikiriye ni UV ishobora gukira.Nyuma yo gutwika UV ikarishye nurumuri rwa UV, fotinitiator ibanza gukuramo ingufu z'imirasire ya UV hanyuma igakora.Electron murwego rwinyuma rwa molekile zayo zirasimbuka kandi zikabyara ikigo gikora mugihe gito cyane.Noneho ikigo gikora gikorana nitsinda ridahagije muri resin, bigatuma imiyoboro ibiri mumashanyarazi ikiza yumucyo hamwe na molekile ikora ya diluent idacika, bikavamo reaction ya polymerisation ikomeza, kugirango yambukiranya ihuza kugirango ikore a firime.Ubushakashatsi bwibikorwa bya chimique byerekana ko uburyo bwa UV bwo gukiza UV butwikiriye ni polymeriki yubusa.Icyambere, icyiciro cyo gufotora;Icyakabiri nicyiciro cyo gukura kumurongo.Muri iki cyiciro, uko imikurire ikura, sisitemu izahuzwa kandi ikomere muri firime;Z post ya chain radicals yuzuye kurangiza urunigi binyuze muguhuza cyangwa kudahuza.

1. Oligomer

Prepolymer, izwi kandi nka oligomer cyangwa resin, ni skeleton ya UV glue.Byerekeza cyane cyane kumurongo wa molekulike ya polymer ifite imiterere ibiri idahagije.Irongera ikora kandi ikora umubiri uhuza gukira nyuma yo kwaguka, itanga ibikoresho nibintu byingenzi byumubiri nubumara.Kurugero, viscosity, imbaraga zingana, imbaraga zo gukata, gukomera no kubahiriza.

2. Monomer

Monomers, izwi kandi nka reaction ya reaction, ahanini ni molekile ntoya irimo imwe cyangwa nyinshi zifatanije, zikoreshwa cyane cyane muguhindura ububobere bwa sisitemu no kugira uruhare muri polymerizasiyo, ariko kandi bigira ingaruka kumubare wa polymerisation nibintu bifatika.Monomers irashobora kugabanwa muri monomonction monomers, monomers ikora na monomers nyinshi ukurikije urwego rwimikorere.Monomunctional monomers ni ingirakamaro mu kongera ubwuzuzanye no gufatira hamwe;Abamonomeri bakora na ba monomor bakora cyane ntibakora gusa nkururimi, ahubwo banakora nkibintu bihuza.Zifite ingaruka zikomeye kubukomere, gukomera n'imbaraga.

3. Abafotora)

Photoinitiator ni umuhuza ukora ushobora gukurura ultraviolet cyangwa urumuri rugaragara kandi bigatanga polymerisation yo gutangiza ubushobozi binyuze mumihindagurikire yimiti.Nibintu byingenzi bigize sisitemu ya Photopolymerisation kandi bigira uruhare rukomeye mukwiyumvisha (igipimo cyo gukiza) cya sisitemu yo gukiza UV.Ifoto yerekana amafoto yubusa hamwe na fotinitiatori yubusa, ikoreshwa kuri sisitemu yubusa hamwe na sisitemu ya cationic.