Ukadaulo wochiritsa kuwala ndiukadaulo wapamwamba kwambiri, kuteteza chilengedwe, kupulumutsa mphamvu komanso ukadaulo wapamwamba kwambiri.Imadziwika ngati ukadaulo watsopano wamakampani obiriwira m'zaka za zana la 21.Ndi chitukuko cha sayansi ndi ukadaulo, kugwiritsa ntchito ukadaulo wochiritsa kuwala kwapangidwa kuyambira pa bolodi losindikizidwa ndi photoresist mpaka zokutira zowala, inki ndi zomatira.Gawo lofunsira lakhala likukulirakulira ndikupanga bizinesi yatsopano.
Zopangira zochizira kwambiri za UV ndi zokutira za UV, inki za UV ndi zomatira za UV.Chinthu chawo chachikulu ndi chakuti ali ndi chiwopsezo chofulumira, makamaka pakati pa masekondi angapo ndi makumi a masekondi.Othamanga kwambiri amatha kuchiritsidwa mu 0.05 ~ 0.1s.Ndiwo kuyanika ndi kuchiritsa mwachangu pakati pa zokutira, inki ndi zomatira zosiyanasiyana pakali pano.
Kuchiritsa kwa UV ndi kuchiritsa kwa UV.UV ndi chidule cha Chingerezi cha UV.Kuchiritsa kumatanthauza kusintha kwa zinthu kuchokera ku mamolekyu otsika kupita ku ma polima.Kuchiritsa kwa UV nthawi zambiri kumatanthauza machiritso kapena zofunikira za zokutira (penti), inki, zomatira (zomatira) kapena zosindikizira zina zomwe zimafunikira kuchiritsidwa ndi UV, zomwe ndizosiyana ndi machiritso otenthetsera, omangira (wothandizira) kuchiritsa, zachilengedwe. kuchiritsa, etc. [1].
Zigawo zoyamba za mankhwala ochiritsa kuwala ndi monga oligomers, diluents yogwira, photoinitiators, zowonjezera ndi zina zotero.Oligomer ndiye gulu lalikulu lazinthu zochiritsira za UV, ndipo magwiridwe ake amatsimikizira magwiridwe antchito azinthu zochiritsidwa.Chifukwa chake, kusankha ndi kapangidwe ka oligomer mosakayikira ndichinthu chofunikira kwambiri pakupanga mankhwala ochiritsa a UV.
Zomwe oligomers amafanana ndikuti onse ali ndi "Unsaturated double bond resins amasankhidwa malinga ndi momwe amachitira polima: acryloyloxy > Methacryloyloxy > vinyl > allyl.Chifukwa chake, ma oligomers omwe amagwiritsidwa ntchito pochiritsa kuwala kwaufulu ndi mitundu yonse ya utomoni wa acrylic, monga epoxy acrylate, polyurethane acrylate, polyester acrylate, polyether acrylate, acrylate resin kapena vinyl resin, ndi epoxy acrylate ndizomwe zimagwiritsidwa ntchito kwambiri Acrylic resin, polyurethane. utomoni wa acrylic ndi polyester acrylic resin.Ma resin atatu awa akufotokozedwa mwachidule pansipa.
Epoxy acrylate ndiye oligomer yomwe imagwiritsidwa ntchito kwambiri komanso yogwiritsidwa ntchito pochiritsa.Amapangidwa kuchokera ku epoxy resin ndi (meth) acrylate.Epoxy acrylate ikhoza kugawidwa mu bisphenol A epoxy acrylate, phenolic epoxy acrylate, epoxy acrylate yosinthidwa ndi epoxidated acrylate malinga ndi mtundu wa mapangidwe.Bisphenol A epoxy acrylate ndi omwe amagwiritsidwa ntchito kwambiri.Bisphenol A epoxy acrylate ndi imodzi mwa oligomers omwe ali ndi liwiro lachangu kwambiri lochiritsa.Filimu yochiritsidwa imakhala ndi kuuma kwakukulu, gloss yapamwamba, kukana kwa mankhwala abwino kwambiri, kukana kutentha kwabwino komanso magetsi.Kuphatikiza apo, bisphenol A oxygen exchange acrylate ili ndi njira yosavuta yopangira komanso mtengo wotsika.Chifukwa chake, amagwiritsidwa ntchito ngati utomoni waukulu wamapepala ochiritsa opepuka, matabwa, pulasitiki ndi zokutira zachitsulo, komanso utomoni waukulu wa inki yochiritsa komanso zomatira zowala.
Polyurethane acrylate
Polyurethane acrylate (PUA) ndi oligomer ina yofunika yochiritsa.Amapangidwa ndi masitepe awiri a polyisocyanate, diol yautali wautali ndi hydroxyl acrylate.Chifukwa cha mapangidwe angapo a ma polyisocyanates ndi ma diol azitali zazitali, ma oligomer okhala ndi katundu wokhazikika amapangidwa kudzera mu kapangidwe ka maselo.Chifukwa chake, ndi oligomers omwe ali ndi mitundu yambiri yazogulitsa pakadali pano, ndipo amagwiritsidwa ntchito kwambiri pakuyala kowala, inki ndi zomatira.
Polyester Acrylate
Polyester acrylate (PEA) ndi oligomer wamba.Amapangidwa ndi acrylate wa otsika molecular kulemera polyester glycol.Polyester acrylate imadziwika ndi mtengo wotsika komanso kukhuthala kotsika.Chifukwa cha kukhuthala kwake kochepa, acrylate ya polyester imatha kugwiritsidwa ntchito ngati oligomer komanso diluent yogwira.Kuphatikiza apo, ma polyester acrylates nthawi zambiri amakhala ndi fungo lochepa, kupsa mtima pang'ono, kusinthasintha kwabwino komanso kunyowa kwa pigment, ndipo ndi oyenera utoto wamitundu ndi inki.Kuti apititse patsogolo kuchiritsa kwakukulu, ma polyester acrylate amitundu yambiri amatha kukonzedwa;Amine kusinthidwa poliyesitala acrylate sangathe kuchepetsa chikoka cha mpweya polymerization chopinga ndi kusintha mlingo machiritso, komanso kusintha adhesion, gloss ndi kuvala kukana.
Zosakaniza zogwira ntchito nthawi zambiri zimakhala ndi magulu ogwira ntchito, omwe amatha kusungunula ndi kusungunula oligomers, ndikugwira ntchito yofunikira pakuchiritsa kuwala ndi filimu.Malinga ndi kuchuluka kwa magulu ochitapo kanthu omwe ali, zodziwikiratu zomwe zimagwira ntchito limodzi ndi isodecyl acrylate, lauryl acrylate, hydroxyethyl methacrylate, glycidyl methacrylate, ndi zina zambiri;Bifunctional yogwira diluent monga polyethylene glycol diacrylate mndandanda, dipropylene glycol diacrylate, neopenyl glycol diacrylate, etc;Multifunctional yogwira diluents monga trimethylolpropane triacrylate, etc.
Woyambitsa ali ndi chikoka chofunikira pakuchiritsa kwa zinthu zochiritsa za UV.Pazinthu zochizira UV, kuchuluka kwa photoinitiator nthawi zambiri kumakhala 3% ~ 5%.Kuphatikiza apo, ma pigment ndi zowonjezera zowonjezera zimakhala ndi gawo lofunikira pazomaliza za zinthu zochiritsidwa ndi UV.
Nthawi yotumiza: Apr-20-2022