Kuchiritsa kwa UV ndi kuchiritsa kwa ultraviolet, UV ndiye chidule cha cheza cha ultraviolet 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 (zopaka), inki, zomatira (zomatira) kapena zosindikizira zina zomwe zimafunikira kuchiritsidwa ndi kuwala kwa ultraviolet, komwe kuli kosiyana ndi kuchiritsa kwa kutentha, kuchiritsa kwa zomatira (zochiritsira), machiritso achilengedwe, etc.
M'munda wa ma polima mankhwala, UV amagwiritsidwanso ntchito monga chidule cha poizoniyu machiritso, UV, ndiko kuti, UV ultraviolet machiritso, ndi ntchito UV ultraviolet sing'anga kuwala ndi lalifupi yoweyula (300-800 nm) pansi UV cheza, madzi UV. zipangizo mu photoinitiator analimbikitsa mu free ankafuna kusintha zinthu mopitirira kapena cations, potero kuyambitsa polima zakuthupi (utomoni) munali yogwira zinchito magulu polymerization mu insoluble ndi sanali kusungunuka olimba ❖ kuyanika filimu, ndi luso latsopano la kuteteza chilengedwe ndi otsika VOC mpweya akutuluka mu 60s. cha m'ma 20.Pambuyo pa zaka za m'ma 80 za zaka za m'ma 1900, China yakula mofulumira.
The oligomers ndi mkulu mamasukidwe akayendedwe, ndipo kuti atsogolere kumanga ndi kusintha liwiro machiritso crosslinking, m`pofunika kuwonjezera monomers monga zotakasika diluents kusintha rheology utomoni.Mapangidwe a reactive diluent ali ndi mphamvu yofunikira pa katundu wa filimu yophimba yomaliza monga flowability, slip, wettability, kutupa, shrinkage, adhesion ndi kusamuka mkati mwa filimu yophimba.Zosakaniza zowonongeka zimatha kukhala zamtundu umodzi kapena zambiri, zotsirizirazi zimakhala zabwinoko chifukwa zimathandizira kuphatikizika pakuchiritsa.Zofunikira pakugwirira ntchito kwa diluent yogwira ntchito ndi, mphamvu ya dilution, kusungunuka, kununkhira, kutha kuchepetsa kukhuthala kwa sing'anga, kusasunthika, magwiridwe antchito, kugwedezeka kwapamtunda, kuchepa panthawi ya polymerization, kutentha kwa magalasi (Tg) a homopolymer, kukhudza zonse. kuchiritsa liwiro ndi kawopsedwe.Monomer yogwiritsidwa ntchito iyenera kukhala monomer yomwe imakwiyitsa khungu ndipo mtengo wake sudutsa 3 monga momwe Draize adatsimikizira.Monomer wamba omwe amagwiritsidwa ntchito ngati diluent yokhazikika ndi tripropylene glycol diacrylate (TPGDA).
Kuthamanga kwa polymerization reverse applications mu makina opangira machiritso a UV amathekadi popanga ma free radical reactions pansi pa ma photoinitiators oyenera ndi/kapena ma photosensitizer ndi kuyatsa kwamphamvu kwambiri.Ma Photoinitiators omwe amapanga ma radicals aulere ndi ma cationic intermediates angagwiritsidwe ntchito.Komabe, m'makampani amasiku ano, akale nthawi zambiri amakhala achikuda (ndiko kuti, photoinitiator yomwe imatha kupanga ma free radicals).
Pakalipano, mafunde a ultraviolet omwe amagwiritsidwa ntchito kwambiri ndi 365nm, 253.7nm, 185nm, ndi zina zotero. Zomwe zimaphatikizapo kuyanika mwamsanga, ndalama zochepa zogwiritsira ntchito, khalidwe labwino, kuchepetsa malo osungirako, oyera komanso ogwira ntchito.Mphamvu ya nyali yomwe imagwiritsidwa ntchito nthawi zambiri imakhala yoposa 1000W, pogwiritsa ntchito ultraviolet UVA UVC, ndi zina zotero, zomwe UVC imagwiritsa ntchito nyali zambiri za amalgam.
Nthawi yotumiza: Oct-19-2022