Fasahar warkar da haske shine ingantaccen inganci, kariyar muhalli, ceton makamashi da fasahar saman kayan abu mai inganci.An san shi a matsayin sabon fasaha don masana'antar kore a cikin karni na 21st.Tare da haɓakar kimiyya da fasaha, aikace-aikacen fasaha na warkar da haske ya haɓaka daga farkon bugu na allo da photoresist zuwa shafi mai warkarwa mai haske, tawada da mannewa.Filin aikace-aikacen yana faɗaɗa kuma ya kafa sabuwar masana'antu.
Abubuwan da aka fi sani da maganin UV sune suturar UV, tawada UV da mannen UV.Babban fasalinsu shine cewa suna da saurin warkewa, gabaɗaya tsakanin ƴan daƙiƙai zuwa dubun seconds.Mafi sauri za a iya warkewa a cikin 0.05 ~ 0.1s.Su ne mafi saurin bushewa da warkewa a tsakanin sutura daban-daban, tawada da adhesives a halin yanzu.
UV curing shine maganin UV.UV shine gajartawar Ingilishi ta UV.Curing yana nufin tsarin canza abubuwa daga ƙananan ƙwayoyin cuta zuwa polymers.Maganin UV gabaɗaya yana nufin yanayin warkewa ko buƙatun sutura (fenti), tawada, adhesives (manne) ko wasu tukunyar tukunyar da ake buƙatar warkewa ta UV, wanda ya bambanta da warkewar dumama, wakili mai haɗawa (wakilin warkarwa) curing, na halitta. waraka, da sauransu [1].
Abubuwan asali na samfuran warkar da haske sun haɗa da oligomers, diluents masu aiki, masu amfani da hoto, ƙari da sauransu.Oligomer shine babban jikin samfuran warkarwa na UV, kuma aikinsa yana ƙayyade ainihin aikin kayan da aka warke.Sabili da haka, zaɓi da ƙira na oligomer babu shakka muhimmiyar hanyar haɗi ce a cikin ƙirar samfuran warkarwa UV.
Abin da waɗannan oligomers suke da shi shine cewa dukkansu suna da "Resins ɗin haɗin da ba a daidaita su ba ana sanya su bisa ga ƙimar ƙimar polymerization na radical: acryloyloxy> Methacryloyloxy> vinyl> allyl.Saboda haka, oligomers da ake amfani da su wajen warkar da haske na kyauta sun fi kowane nau'in resin acrylic, irin su epoxy acrylate, polyurethane acrylate, polyester acrylate, polyether acrylate, acrylate resin ko vinyl resin, kuma epoxy acrylate shine mafi yawan amfani da resin Acrylic, polyurethane, polyester acrylate. acrylic guduro da polyester acrylic guduro.Wadannan resin guda uku an gabatar dasu a takaice a kasa.
Epoxy acrylate shine mafi yawan amfani kuma ana amfani dashi don warkar da oligomer.An shirya shi daga resin epoxy da (meth) acrylate.Za a iya raba Epoxy acrylate zuwa bisphenol A epoxy acrylate, phenolic epoxy acrylate, gyaggyarawa epoxy acrylate da epoxidated acrylate bisa ga nau'in tsari.Bisphenol A epoxy acrylate shine mafi yawan amfani.Bisphenol A epoxy acrylate yana daya daga cikin oligomers tare da saurin warkar da haske.Fim ɗin da aka warke yana da ƙarfi mai ƙarfi, babban sheki, kyakkyawan juriya na sinadarai, juriya mai kyau da kayan lantarki.Bugu da kari, bisphenol A oxygen musayar acrylate yana da sauki albarkatun kasa dabara da kuma low price.Sabili da haka, ana amfani da shi azaman babban guduro na takarda warkar da haske, itace, filastik da rufin ƙarfe, da kuma babban guduro na tawada mai warkarwa da haske.
Polyurethane acrylate
Polyurethane acrylate (PUA) wani muhimmin haske ne na warkar da oligomer.An haɗa shi ta hanyar amsawar mataki biyu na polyisocyanate, diol mai tsayi mai tsayi da hydroxyl acrylate.Saboda da yawa Tsarin na polyisocyanates da dogayen sarkar diols, oligomers tare da saitin kaddarorin suna hada ta hanyar kwayoyin zane.Saboda haka, su ne oligomers tare da mafi yawan samfuran samfuran a halin yanzu, kuma ana amfani da su sosai a cikin kayan shafa mai haske, tawada da adhesives.
Polyester Acrylate
Polyester acrylate (PEA) shima oligomer ne na kowa.An shirya shi da acrylate na ƙananan nauyin kwayoyin polyester glycol.Polyester acrylate yana da ƙarancin farashi da ƙarancin danko.Saboda ƙananan danko, polyester acrylate za a iya amfani dashi azaman oligomer da diluent mai aiki.Bugu da ƙari, polyester acrylates yawanci suna da ƙananan wari, ƙananan fushi, sassauci mai kyau da kuma launi mai launi, kuma sun dace da fenti mai launi da tawada.Domin inganta babban magani kudi, za a iya shirya multifunctional polyester acrylate;Amine modified polyester acrylate ba zai iya kawai rage tasirin iskar oxygen polymerization hanawa da kuma inganta warkewa kudi, amma kuma inganta mannewa, mai sheki da juriya.
Abubuwan diluent masu aiki yawanci suna ƙunshi ƙungiyoyi masu amsawa, waɗanda zasu iya narke da dilute oligomers, kuma suna taka muhimmiyar rawa a cikin tsarin warkar da haske da abubuwan fim.Dangane da adadin ƙungiyoyi masu amsawa da ke ƙunshe, abubuwan diluent na yau da kullun na monofunctional sun haɗa da isodecyl acrylate, lauryl acrylate, hydroxyethyl methacrylate, glycidyl methacrylate, da sauransu;Diluents masu aiki na bifunctional sun haɗa da jerin polyethylene glycol diacrylate, dipropylene glycol diacrylate, neopentyl glycol diacrylate, da dai sauransu;Multifunctional aiki diluents kamar trimethylolpropane triacrylate, da dai sauransu.
Mai farawa yana da tasiri mai mahimmanci akan ƙimar warkewar samfuran UV.A cikin samfuran maganin UV, ƙarin adadin photoinitiator shine gabaɗaya 3% ~ 5%.Bugu da kari, pigments da filler additives suma suna da tasiri mai mahimmanci akan kaddarorin ƙarshe na samfuran warkewar UV.
Lokacin aikawa: Afrilu-20-2022