Akwai abubuwa da yawa waɗanda ke shafar warkewa da bushewar kayan rufin UV na Waterborne lokacin amfani da injin warkar da UV.Wannan takarda tana magana ne kawai akan manyan abubuwan.Waɗannan abubuwan sun haɗa da abubuwa kamar haka:
1. Tasirin pre bushewa na tsarin ruwa a kan UV curing
Yanayin bushewa kafin warkewa yana da babban tasiri akan saurin warkewa.Lokacin da bai bushe ba ko bai cika ba, saurin warkarwa yana jinkirin, kuma ƙimar gelation ba ta ƙaruwa sosai tare da tsawaita lokacin fallasa.Wannan shi ne saboda fiye da marufi.Ko da yake ruwa yana da wani tasiri akan hana polymerization na oxygen, zai iya sa saman fim ɗin tawada ya ƙarfafa da sauri, kawai don cimma bushewa, amma ba don cimma bushewa mai ƙarfi ba.Kamar yadda tsarin ya ƙunshi ruwa mai yawa, tsarin yana ƙarƙashin ƙa'idodi da takaddun shaida lokacin da ake warkewa a wani zazzabi.Tare da saurin fitar da ruwa a saman fim ɗin tawada, fuskar fim ɗin tawada yana ƙarfafawa da sauri, kuma ruwan da ke cikin fim yana da wuyar tserewa.Ruwa mai yawa ya rage a cikin fim ɗin tawada, yana hana ƙarin haɓakawa da tabbatar da fim ɗin tawada da rage saurin warkewa.Bugu da ƙari, zafin jiki na yanayi a lokacin hasken UV yana da tasiri mai yawa akan maganin maganin UV.Mafi girman zafin jiki, mafi kyawun kayan warkewa.Sabili da haka, idan an yi amfani da preheating, za a inganta kayan warkarwa na sutura kuma manne zai fi kyau.
2. Tasirin photoinitiator akan Waterborne UV curing
Dole ne mai ɗaukar hoto ya kasance yana da ƙayyadaddun rashin daidaituwa tare da tsarin warkarwa na UV na tushen ruwa da ƙarancin ƙarancin ruwa, ta yadda za a iya tarwatsa mai ɗaukar hoto, wanda zai dace da sakamako mai gamsarwa.In ba haka ba, a lokacin aikin bushewa, photoinitiator zai canza tare da tururin ruwa, yana rage tasirin mai farawa.Daban-daban na photoinitiators don marufi na taba suna da tsayin tsayi daban-daban.Yin amfani da su tare yana iya ɗaukar haskoki na ultraviolet na tsawon tsayi daban-daban, inganta haɓakar hasken ultraviolet, da kuma hanzarta saurin warkewar fim ɗin tawada.Sabili da haka, ana iya samun fim ɗin tawada tare da saurin warkarwa da kuma kyakkyawan aiki ta hanyar amfani da nau'ikan masu amfani da hoto da daidaita ma'auni daban-daban na masu ɗaukar hoto.Abubuwan da ke cikin fili na photoinitiator a cikin tsarin yakamata a haɓaka su yadda ya kamata, ƙananan ƙarancin ba su da amfani ga gasar sha tare da pigments;Haske mai yawa ba zai iya shiga cikin rufin lafiya ba.Da farko, adadin maganin da ake yi na sutura yana ƙaruwa tare da haɓakar fili na photoinitiator, amma lokacin da adadin photoinitiator na fili ya karu zuwa wani ƙima, sa'an nan kuma ƙara yawan abun ciki, ƙimar warkewa zai ragu.
3. Tasirin Ruwan Ruwa UV curing guduro akan UV curing
Guro mai warkewa na tushen ruwa na UV yana buƙatar marufi mai sassauƙan haske mai radical kyauta, wanda ke buƙatar cewa ƙwayoyin guduro dole ne su sami ƙungiyoyin da ba su da tushe.A ƙarƙashin hasken ultraviolet na hasken ultraviolet, ƙungiyoyin da ba su da tushe a cikin kwayoyin suna da alaƙa da juna, kuma rufin ruwa ya zama mai ƙarfi.Yawancin lokaci, ana amfani da hanyar gabatar da acryloyl, methacryloyl, vinyl ether ko allyl don sanya resin roba ya sami takaddun shaida na rukuni, ta yadda za'a iya warkewa a ƙarƙashin yanayin da ya dace.Ana amfani da Acrylate sau da yawa saboda yawan halayensa.Don tsarin warkarwa na UV mai tsattsauran ra'ayi, tare da haɓaka abubuwan haɗin gwiwa biyu a cikin kwayar halitta, saurin haɗin fim ɗin zai ƙaru, kuma saurin warkarwa zai haɓaka.Bugu da ƙari, resins tare da sassa daban-daban suna da tasiri daban-daban akan ƙimar warkewa.Ayyukan amsawa na ƙungiyoyin ayyuka daban-daban gabaɗaya yana ƙaruwa cikin tsari mai zuwa: vinyl ether
4. Tasirin pigments akan UV curing na Waterborne Coatings
A matsayin abin da ba mai ɗaukar hoto ba a cikin kayan shafa na UV na Waterborne, pigments suna gasa tare da masu farawa don ɗaukar hasken UV, wanda ke tasiri sosai ga halayen warkarwa na tsarin warkar da UV.Saboda pigment na iya ɗaukar wani ɓangare na makamashin radiation, zai shafi kula da photoinitiator don kayan aikin hasken haske, sa'an nan kuma ya shafi ƙaddamar da radicals kyauta wanda za'a iya haifar da shi, wanda zai rage saurin warkewa.Kowane launi na pigment yana da nau'i daban-daban (watsawa) zuwa nau'i daban-daban na haske.Karamin abin sha na pigment, mafi girma da watsawa, da sauri da saurin warkewar murfin.Baƙar fata Carbon yana da babban ƙarfin ɗaukar ultraviolet kuma mafi saurin warkewa.Farin launi yana da ƙaƙƙarfan kaddarorin nuni, wanda kuma yana hana warkewa.Gabaɗaya magana, tsarin sha na hasken ultraviolet shine: Black> purple> Blue> cyan> Green> rawaya> ja.
Daban-daban rabo da kuma maida hankali na pigment iri ɗaya suna da tasiri daban-daban akan saurin warkewar fim ɗin tawada.Tare da karuwar abun ciki mai launi, adadin maganin tawada ya ragu a matakai daban-daban.Adadin launin rawaya yana da tasiri mafi girma akan saurin warkewar fim ɗin tawada, sannan launin ja da launin kore.Saboda baƙar fata yana da mafi girman ƙimar hasken ultraviolet, yana mai da jigilar baƙar fata mafi ƙanƙanta, canjin adadin sa ba shi da wani tasiri a zahiri akan ƙimar maganin tawada.Lokacin da adadin pigment ya yi girma sosai, saurin warkewar fuskar fim ɗin tawada yana da sauri fiye da na farantin, amma pigment ɗin da ke saman saman yana ɗaukar haske mai yawa na ultraviolet, wanda ke rage watsa hasken ultraviolet. kuma yana rinjayar warkar da zurfin zurfin fim din tawada, wanda ya haifar da farfajiyar fuskar fim ɗin tawada yana warkarwa amma ƙasan ƙasa ba ta warkewa ba, wanda ke da sauƙi don samar da al'amuran "alama".
Lokacin aikawa: Jul-05-2022