Maganin UV yana nufin maganin UV a cikin tsarin warkar da radiation (wanda ake kira UV curing).Fasahar warkar da radiation wata sabuwar fasaha ce ta kore, wacce ke nufin aiwatar da polymerization nan take da kuma hanyar haɗin kai na tsarin lokaci na ruwa ta hanyar hasken ultraviolet, katako na lantarki da hasken r-ray.Yana da abũbuwan amfãni na makamashi ceto, high dace, m shafi yi, manne ceton, aminci da muhalli kariya, high haske, dogon duration, da dai sauransu Halitta dutse kanta yana da wasu asali lahani, kamar rami, fasa, m faranti, da dai sauransu. (duka granite da marmara sun wanzu).
Halayen hanyar gini:
1) Kyakkyawan aiki mai kyau: UV curing shafi yana da kyakkyawan aiki, babban mai sheki, babban taurin, da juriya mai kyau.Ingantacciyar haɓaka ingancin gyare-gyaren ramukan dutse.
2) Tsaro da Kariyar Muhalli: Saboda saurin warkewar UV yana da sauri sosai, fitar da abubuwan kaushi a cikin iska yana raguwa zuwa sifili, wanda ke da aminci kuma yana da alaƙa da muhalli.
Ƙa'idar tsari:
UV coatings ne UV curable coatings.Bayan hasken UV masu warkewa suna haskakawa ta hanyar hasken UV, mai ɗaukar hoto ya fara ɗaukar makamashin UV kuma yana kunnawa.Electrons a saman Layer na kwayoyinsa suna tsalle kuma suna samar da cibiyar aiki cikin kankanin lokaci.Sa'an nan kuma cibiyar aiki tana aiki tare da ƙungiyoyin da ba a yarda da su ba a cikin guduro, suna haifar da haɗin gwiwa biyu a cikin guduro mai haske mai fitar da haske da kuma cire haɗin gwiwar kwayoyin halitta mai aiki, wanda ya haifar da ci gaba da amsawar polymerization, don ƙetare juna don samar da wani abu. fim.Nazarin kinetics na sinadarai ya nuna cewa hanyar UV curing UV coatings ne free radical sarkar polymerization.Na farko, matakin photoinitiation;Na biyu shine matakin amsa sarkar girma.A wannan mataki, yayin da ci gaban sarkar ke ci gaba, tsarin zai kasance mai haɗin kai kuma ya ƙarfafa shi a cikin fim;Z post sarkar radicals sun kammala ƙarshen sarkar ta hanyar haɗawa ko rashin daidaituwa.
1. Oligomer
Prepolymer, wanda kuma aka sani da oligomer ko guduro, shine kwarangwal na manne UV.Yana magana ne akan nau'in polymers na kwayoyin halitta tare da tsarin haɗin da ba a cika ba.Yana ƙara amsawa kuma yana samar da jiki mai warkarwa mai alaƙa bayan haɓakawa, wanda ke ba da kayan kayan asali na zahiri da sinadarai.Misali, danko, karfin juriya, karfin juzu'i, taurin da yarda.
2. Mai gani
Monomers, wanda kuma aka sani da diluents mai amsawa, galibi ƙananan ƙwayoyin cuta ne waɗanda ke ɗauke da ɗakuna ɗaya ko fiye biyu, waɗanda galibi ana amfani da su don daidaita ɗankowar tsarin da shiga cikin polymerization, amma kuma suna da tasiri akan ƙimar polymerization da kaddarorin kayan.Za a iya raba masu monomers zuwa monomers guda ɗaya, monomers bifunctional da monomers multifunctional bisa ga matakin aiki.Monofunctional monomers suna da amfani don haɓaka sassauci da mannewa na colloid;Difunctional monomers da multifunctional monomers ba kawai aiki a matsayin diluents, amma kuma aiki a matsayin giciye-linking jamiái.Suna da tasiri mai mahimmanci akan taurin, ƙarfi da ƙarfi.
3. Masu daukar hoto)
Photoinitiators matsakaita ne masu aiki waɗanda zasu iya ɗaukar ultraviolet ko haske mai gani kuma suna samar da ikon fara polymerization ta hanyar canje-canjen sinadarai.Su ne mahimman abubuwan da ke cikin tsarin photopolymerization kuma suna taka muhimmiyar rawa a cikin hankali (ƙididdigar warkewa) na tsarin warkar da UV.Masu ɗaukar hoto sun haɗa da masu ɗaukar hoto masu tsattsauran ra'ayi da cationic photoinitiators, waɗanda ake amfani da su zuwa tsarin radical na kyauta da tsarin cationic bi da bi.
Lokacin aikawa: Nuwamba-24-2022