Daawaynta UV waa daawaynta ultraviolet, UV waa soo gaabinta ultraviolet UV rays ultraviolet, daawaynta waxa loola jeedaa habka walxaha laga beddelo molecules hoose una beddelo polymers.Daawaynta UV guud ahaan waxa loola jeedaa xaaladaha daawaynta ama shuruudaha dahaarka (rinnjiyada), khadadka, xabagta (xabagta) ama dheryaha kale ee dheryaha ee u baahan in lagu daweeyo iftiinka ultraviolet, kaas oo ka duwan daawaynta kulaylka, daawaynta xabagta (wakiilada daaweynta), daaweynta dabiiciga ah, iwm.
Dhinaca polymers kiimikaad, UV waxaa sidoo kale loo isticmaalaa soo gaabinta daaweynta shucaaca, UV, taas oo ah, daaweynta UV ultraviolet, waa isticmaalka UV ultraviolet iftiin dhexdhexaad ah iyo hirar gaaban (300-800 nm) hoos shucaaca UV, dareere UV Qalabka photoinitiator-ka ayaa kiciyay xag-jiryo lacag-la'aan ah ama cations, taas oo kicinaysa maadada polymerka (resin) oo ay ku jiraan kooxo firfircooni ah polymerization galay filim daahan adag oo aan la milmi karin oo aan dhalaalin, waa tignoolajiyada cusub ee ilaalinta deegaanka iyo qiiqa VOC hooseeya ee soo baxaya 60-meeyadii. qarnigii 20aad.Kadib 80-meeyadii qarnigii 20-aad, Shiinuhu si degdeg ah ayuu u horumaray.
Oligomers-yadu waxay leeyihiin viscosity sare, iyo si loo fududeeyo dhismaha loona hagaajiyo xawaaraha daaweynta ee isku-tallaabta, waxaa lagama maarmaan ah in lagu daro monomers sida dareeraha falcelinta si loo hagaajiyo rheology ee resin.Qaab dhismeedka dareeraha falcelinta ayaa saameyn muhiim ah ku leh sifooyinka filimka ugu dambeeya ee daahan sida qulqulka, silbashada, qoynta, bararka, hoos u dhaca, adhesion iyo guuritaanka gudaha filimka daahan.Dheecaannada fal-celiska ahi waxay noqon karaan kuwo monofunctional ah ama kuwo badan, kan dambe ayaa ka wanaagsan sababtoo ah waxay hagaajinaysaa isku-xidhka marka la daaweynayo.Shuruudaha waxqabadka ee dareeraha falcelinta waa, awoodda milanka, milanka, ur, awoodda lagu yareeyo viscosity ee dhexdhexaadka ah, isbeddelka, shaqeynta, xiisadda dusha sare, hoos u dhaca inta lagu jiro polymerization, heerkulka kala-guurka galaaska (Tg) ee homopolymer, saameynta guud ee guud daweynta xawaaraha iyo sunta.monomer-ka la isticmaalo waa inuu noqdaa monomer ka xanaajiya maqaarka oo qiimihiisu aanu dhaafin 3 sida ay go'aamisay Draize.Monomer-ka caadiga ah ee loo isticmaalo dareere fal-celiska ah waa tripropylene glycol diacrylate (TPGDA).
Codsiyada romerization-ka degdega ah ee habka kiimikaad ee daaweynta UV waxaa lagu gaaraa abuurista falcelin xagjir ah oo bilaash ah oo hoos yimaada sawir-qaadayaasha iyo/ama sawir-qaadayaasha iyo xaaladaha iftiinka waxqabadka sare.Photoinitiators kuwaas oo abuura xagjirnimo bilaash ah iyo dhexdhexaadiyeyaasha cationic waa la isticmaali karaa.Si kastaba ha ahaatee, warshadaha maanta, kii hore ayaa inta badan midab leh (taas oo ah, sawir-qaade kaas oo soo saari kara xagjirnimo bilaash ah).
Waqtigan xaadirka ah, dhererka mowjadaha ultraviolet ee aadka loo isticmaalo waa 365nm, 253.7nm, 185nm, iwm. Tilmaamaha waxaa ka mid ah qalajinta degdega ah, kharashyada hawlgalka oo hooseeya, tayada wanaajinta, hoos u dhigista booska kaydinta, nadiif ah oo hufan.Awoodda nalka ee la isticmaalo guud ahaan waa in ka badan 1000W, iyadoo la isticmaalayo ultraviolet UVA UVC, iwm, kuwaas oo UVC ay isticmaasho nalal badan oo algaam ah.
Waqtiga boostada: Oct-19-2022