Upende wokuphulukisa we-UV uwuhlobo lopende oluhlaza wokuvikela imvelo, onezici zokucaca okuphezulu, ubulukhuni obuphezulu kanye nokumelana nokuklwebheka.Isetshenziswa kabanzi epulasitiki noma ensimbi substrate uwoyela spray inqubo.Isenzakalo esivelele esithinta ikhwalithi yokumboza kanye nesivuno ekufutheni kwe-UV ukuwa kopende, okusho ukuthi, ukunamathela phakathi kopende wokwelapha we-UV kanye ne-substrate kubi.Khona-ke sizohlaziya izimbangela nezixazululo zokunamathela okunzima kusuka ezicini ezimbili zopende we-UV kanye ne-spray substrate.
Izizathu zokuthi kungani upende wokuphulukisa we-UV kunzima ukunamathela ku-substrate:
Kusukela ekuhlaziyweni kopende wokwelapha we-UV, umthelela we-UV enamathela ku-substrate ubuthakathaka ngokuya ngokungena.Uma kucatshangelwa ukusebenza ngemuva kokwelashwa, i-viscosity yesistimu ye-resin yesisindo esiphansi iyanda futhi uketshezi luyancipha, ngakho-ke ukumanzisa nokungena kwe-substrate akwanele.Ngaphezu kwalokho, ukuncipha kwevolumu kapende we-UV ngesikhathi sokwelashwa kanye nesikhathi sokusabela ngokushesha kuyizici ezimbili.Owokuqala uzodala umehluko ekuguquguqukeni phakathi kokugqoka kanye ne-substrate, ngaleyo ndlela kwakha ukucindezeleka phakathi kokugqoka;Lokhu kokugcina kungenxa yokusabela okusheshayo, okuzodala ukungafani kwesakhiwo sesistimu kapende we-UV.
Ngokombono we-substrate yokufafaza ngopende we-UV, into yokuqala okufanele uyiqonde indima yokunamathela.Amandla okuba khona kwawo anquma ukuthi upende kanye ne-substrate kungathola ukunamathela ukuze kwakhiwe ukunamathela okuqinile.Ngakho-ke lapha kufanele sisho umthelela we-substrate polarity, crystallinity, amandla angaphezulu kanye nokushelela kokunamathela kwe-substrate surface.I-non polarity ephansi noma i-polarity, njengepulasitiki ye-PP, okunzima ukuyifaka uwoyela, ikristalu ephezulu namandla angaphezulu aphansi, njenge-PA inayiloni substrate, kuyilapho ukushelela kugqame kakhulu ensimbini yensimbi engagqwali.Ngakho-ke, isakhiwo samangqamuzana kanye nezakhiwo ze-substrate nazo zinomthelela omkhulu ekunamatheleni.Ngakho-ke, lapho upende we-UV ungalungiswa, isihluthulelo sokuxazulula inkinga yokunamathela kabi kopende we-UV ukuthuthukisa ukunamathela phakathi kwe-substrate nopende we-UV.
Izindlela zokuthuthukisa ukunamathela phakathi kopende we-UV kanye ne-substrate:
Endleleni yokuxazulula ukunamathela kopende wokuphulukisa we-UV ofuthwe epulasitiki noma endaweni yensimbi, ungqimba lukapende omile lufafazwa phezu kwe-substrate i-ejenti yokwelapha yokunamathela ye-Sichuan iyisixazululo esisebenzayo sokuthuthukisa ukunamathela phakathi kwe-substrate ne-UV enamathelayo. .Okokuqala, i-ejenti yokwelapha enamathelayo ingamanzisa ngokuphelele i-substrate.Okwesibili, i-ejenti yokwelapha iqukethe ama-radicals mahhala ahlanganiswe ne-hydrogen anamaqembu amhlophe njenge-hydroxyl ye-substrate, okwenza ifilimu ihlangane.Ngesikhathi esifanayo, i-ejenti yokwelapha enamathelayo kanye nopende kungakha futhi izibopho zamakhemikhali, ezizohlanganisa indawo engaphansi ne-UV enamathelayo, futhi ithuthukise ukwakheka kwezinga eliphezulu lokunamathela phakathi kopende we-UV kanye ne-substrate.
Isikhathi sokuthumela: Jun-28-2022