Ubuhanga bwa UV bwo gukiza ni ubwoko bwimikorere ihanitse, kurengera ibidukikije, kuzigama ingufu hamwe nubuhanga buhanitse bwo hejuru.Azwi nkikoranabuhanga rishya ryinganda zicyatsi mu kinyejana cya 21.Hamwe niterambere ryubumenyi nubuhanga, ikoreshwa rya tekinoroji yo gukiza UV yateye imbere kuva ku mbaho za mbere zacapwe hamwe n’abafotora kugeza kuri UV ikiza, wino hamwe n’ibiti.Umwanya wo gusaba wagutse, ukora inganda nshya.
Ibicuruzwa bivura UV bikunze kugabanywamo ibice bya UV, wino ya UV hamwe na UV.Ikintu kinini kiranga nuko bafite igipimo cyo gukira byihuse, mubisanzwe hagati yamasegonda make namasegonda mirongo, kandi byihuse birashobora gukira muri 0.05 ~ 0.1s.Nibyuma byihuta kandi bikiza mubitambaro bitandukanye, wino hamwe nibifata muri iki gihe.
Gukiza UV bisobanura gukiza UV.UV ni impfunyapfunyo yicyongereza ya UV.Gukira bivuga inzira ihinduka kuva kuri molekile nkeya ikajya kuri polymers.Gukiza UV muri rusange bivuga uburyo bwo gukiza cyangwa ibisabwa byo gutwikira (amarangi), wino, ibifunga (kole) cyangwa ibindi bifunga inkono bisaba gukira UV, bitandukanye no gukiza ubushyuhe, gukiza hamwe nibiti (imiti ikiza), gukiza bisanzwe, nibindi. [1].
Ibice byingenzi bigize UV ikiza ibicuruzwa birimo oligomers, diluents ikora, fotinitiator, inyongeramusaruro nibindi.Oligomer numubiri wingenzi wibicuruzwa bivura UV, kandi imikorere yabyo ahanini igena imikorere yingenzi yibikoresho byakize.Kubwibyo, guhitamo no gushushanya oligomer ntagushidikanya ni ihuriro ryingenzi mugutegura UV ikiza.
Icyo aba oligomeri bahurizaho nuko bose bafite ibisigisigi bidahagije byujujwe bikurikiranwa nigipimo cyibisubizo byubusa bwa polymerisime yubusa: acryloyloxy> methacrylyloxy> vinyl> allyl.Niyo mpamvu, oligomers ikoreshwa mugukiza UV yubusa ahanini ni resin zitandukanye za acrylic, nka epoxy acrylate, polyurethane acrylate, polyester acrylate, polyether acrylate, acrylate resin cyangwa vinyl resin, kandi ikoreshwa cyane ni epoxy acrylate resin, polyurethane acrylate resin na polyester acrylic resin.Ibisigarira bitatu byerekanwe muri make hepfo.
Epoxy acrylate
Epoxy acrylic aside agaciro nikoreshwa cyane kandi nini ya UV ikiza oligomer kurubu.Yateguwe kuva epoxy resin na (meth) acrylate.Epoxy acrylates irashobora kugabanwa muri bisphenol Apoxy acrylates, fenolike epoxy acrylates, epoxy acrylates yahinduwe na epoxisize acrylates ukurikije ubwoko bwayo, na bisphenol Apoxy acrylates niyo ikoreshwa cyane.
Bisphenol Apoxy acrylate ni imwe muri oligomers ifite umuvuduko ukiza wihuse.Filime yakize ifite ubukana bwinshi, ububengerane bwinshi, imiti irwanya imiti, irwanya ubushyuhe bwiza hamwe n’amashanyarazi.Byongeye, bispenol A ogisijeni yo guhanahana acrylate ifite formulaire yibikoresho byoroshye nigiciro gito.Kubwibyo, isanzwe ikoreshwa nkibisigarira nyamukuru byimpapuro zikiza urumuri, ibiti, plastiki nicyuma, kandi nanone nkibisigarira nyamukuru byo gukiza urumuri hamwe no gufatira urumuri.
Polyurethane acrylate
Polyurethane acrylate (PUA) niyindi UV ikomeye ikiza oligomer.Ihindurwamo nintambwe ebyiri reaction ya polyisocyanate, diol-ndende ya diol na hydroxyl acrylate.Bitewe nuburyo bwinshi bwa polyisocyanates hamwe na diol-ndende ndende, oligomers ifite imiterere yashizwemo ikomatanyirizwa muburyo bwa molekile.Kubwibyo, ni oligomers hamwe nibirango byibicuruzwa byinshi muri iki gihe, kandi bikoreshwa cyane muri UV ikiza impuzu, wino hamwe nuduti.
Polyester Acrylate
Polyester acrylate (PEA) nayo ni oligomer isanzwe, itegurwa kuva muburemere buke bwa polyester glycol na acrylate.Polyester acrylate irangwa nigiciro gito nubukonje buke.Bitewe n'ubukonje buke, polyester acrylate irashobora gukoreshwa nka oligomer hamwe na diluent ikora.Byongeye kandi, polyester acrylates nyinshi ifite impumuro nke, kurakara gake, guhinduka neza hamwe no guhindagurika kwa pigment, kandi birakwiriye kurangi ryamabara na wino.Kugirango tunoze igipimo kinini cyo gukira, hategurwa polyester acrylate ikora cyane;Amine yahinduwe na polyester acrylate ntishobora kugabanya gusa ingaruka zo kubuza ogisijeni polymerisiyonike, kunoza igipimo cyo gukira, ariko kandi inanonosora imiterere, gloss hamwe no kwihanganira kwambara.
Imikorere ikora mubisanzwe irimo amatsinda akora, ashobora gushonga no kugabanya oligomers, kandi akagira uruhare runini mugukiza UV hamwe nimiterere ya firime.Ukurikije umubare wamatsinda adakora, ibisanzwe bikora monofunctional ikora harimo isodecyl acrylate, lauryl acrylate, hydroxyethyl methacrylate, glycidyl methacrylate, nibindi;Imikorere ikora neza irimo polyethylene glycol diacrylate ikurikirana, dipropylene glycol diacrylate, neopentyl glycol diacrylate, nibindi;Imikorere myinshi ikora nka trimethylolpropane triacrylate, nibindi [2].
Initiator ifite uruhare runini ku gipimo cyo gukiza ibicuruzwa bivura UV.Muri UV ikiza ibicuruzwa, ingano ya fotoinitiator ni 3% ~ 5%.Mubyongeyeho, pigment ninyongeramusaruro nabyo bigira ingaruka zikomeye kumikorere yanyuma yibicuruzwa UV byakize.
Igihe cyo kohereza: Jun-15-2022