Itekhnoloji yokunyanga ukukhanya kukusebenza okuphezulu, ukukhuselwa kwendalo, ukonga umbane kunye nomgangatho ophezulu wetekhnoloji yomphezulu.Yaziwa njengetekhnoloji entsha yoshishino oluluhlaza kwinkulungwane yama-21.Ngophuhliso lwezenzululwazi kunye nobuchwepheshe, ukusetyenziswa kobugcisa bokunyanga ukukhanya kuye kwaphuhliswa ukusuka kwibhodi eprintiweyo yokuqala kunye ne-photoresist ukuya kwi-coating yokukhanya, i-inki kunye ne-adhesive.Indawo yesicelo iye yanda kwaye yenza ishishini elitsha.
Ezona mveliso zixhaphakileyo zokunyanga iUV zizityatyambo zeUV, ii-ink ze-UV kunye nezinto zokuncamathelisa zeUV.Eyona nto ibaluleke kakhulu kubo kukuba banesantya sokunyanga ngokukhawuleza, ngokubanzi phakathi kwemizuzwana embalwa kunye namashumi emizuzwana.Ezona zikhawulezayo zinokunyangeka kwi-0.05 ~ 0.1s.Zezona zomiswe ngokukhawuleza kunye nokunyanga phakathi kwee-coatings ezahlukeneyo, ii-inki kunye ne-adhesives okwangoku.
Ukunyanga kwe-UV kunyango lwe-UV.UV sisishunqulelo sesiNgesi se-UV.Ukunyanga kubhekisa kwinkqubo yokutshintsha izinto ukusuka kwiimolekyuli ezisezantsi ukuya kwiipolymers.Ukunyangwa kwe-UV ngokubanzi kubhekiselele kwiimeko zokunyanga okanye iimfuno zokugquma (ipeyinti), ii-inki, izinto zokuncamathelisa (iiglu) okanye ezinye izinto zokutywina ezifuna ukunyangwa yi-UV, eyahlukileyo kunyango lokufudumeza, i-agent ebophayo (i-arhente yokunyanga) ukunyanga, yendalo. ukunyanga, njl. [1].
Amacandelo asisiseko kwiimveliso zokunyanga ukukhanya ziquka i-oligomers, i-diluents esebenzayo, i-photoinitiators, izongezo kunye nokunye.I-Oligomer ngowona mzimba uphambili weemveliso zokunyanga ze-UV, kwaye ukusebenza kwayo ngokusisiseko kumisela eyona mveliso iphambili yezinto ezinyangwayo.Ngoko ke, ukukhethwa kunye noyilo lwe-oligomer ngokungangabazeki ikhonkco elibalulekileyo ekuqulunqweni kweemveliso zokunyanga kwe-UV.
Yintoni le oligomers efana ngayo kukuba zonke zine "Unsaturated double bond resins zibekwe ngokwezinga lokusabela kwepolymerization yamahhala: acryloyloxy > Methacryloyloxy > vinyl > allyl.Ke ngoko, ii-oligomers ezisetyenziswa ekunyangelweni kokukhanya kweradical simahla ubukhulu becala zizo zonke iintlobo zeentlaka ze-acrylic, ezifana ne-epoxy acrylate, i-polyurethane acrylate, i-polyester acrylate, i-polyether acrylate, i-acrylate resin okanye i-vinyl resin, kunye ne-epoxy acrylate yeyona nto isetyenziswa kakhulu i-Acrylic resin, i-polyurethane. i-acrylic resin kunye ne-polyester acrylic resin.Ezi ntlanu zintathu zaziswe ngokufutshane apha ngezantsi.
I-Epoxy acrylate yeyona oligomer isetyenziswa kakhulu kwaye isetyenziswa ukukhanya.Ilungiswe ukusuka kwi-epoxy resin kunye ne (meth) acrylate.I-epoxy acrylate inokwahlulwa ibe yi-bisphenol I-epoxy acrylate, i-phenolic epoxy acrylate, i-epoxy acrylate elungisiweyo kunye ne-epoxidated acrylate ngokohlobo lwesakhiwo.I-Bisphenol I-epoxy acrylate yeyona isetyenziswa kakhulu.I-Bisphenol I-epoxy acrylate yenye yeeoligomers enesantya esikhawulezayo sokunyanga ukukhanya.Ifilimu ephilisiweyo inobunzima obuphezulu, i-gloss ephezulu, ukuchasana kweekhemikhali okugqwesileyo, ukumelana nobushushu obuhle kunye neempawu zombane.Ukongeza, i-bisphenol I-acrylate yokutshintshiselana nge-oxygen inefomula elula yezinto eziluhlaza kunye nexabiso eliphantsi.Ke ngoko, isetyenziswa ngokuqhelekileyo njengentlaka ephambili yephepha lokunyanga ukukhanya, iinkuni, iplastiki kunye neengubo zentsimbi, kunye ne-resin ephambili ye-inki yokuphilisa ukukhanya kunye ne-adhesive elula.
Polyurethane acrylate
I-polyurethane acrylate (PUA) yenye ioligomer ebalulekileyo yokunyanga ukukhanya.Yenziwa ngamanyathelo amabini okusabela kwe-polyisocyanate, i-diol yekhonkco elide kunye ne-hydroxyl acrylate.Ngenxa yezakhiwo ezininzi ze-polyisocyanates kunye ne-long-chain diols, i-oligomers eneempawu ezimiselweyo zenziwe ngoyilo lwe-molecular.Ke ngoko, zii-oligomers ezineempawu ezininzi zemveliso okwangoku, kwaye zisetyenziswa ngokubanzi kwiingubo zokunyanga ukukhanya, ii-inki kunye ne-adhesives.
Polyester Acrylate
I-polyester acrylate (PEA) nayo i-oligomer eqhelekileyo.Ilungiswa nge-acrylate ye-molecular weight polyester glycol ephantsi.I-polyester acrylate ibonakala ngexabiso eliphantsi kunye ne-viscosity ephantsi.Ngenxa ye-viscosity ephantsi, i-polyester acrylate ingasetyenziswa njenge-oligomer kunye ne-diluent esebenzayo.Ukongeza, i-polyester acrylates ininzi inevumba eliphantsi, ukucaphuka okuphantsi, ukuguquguquka okuhle kunye nokumanzi kwe-pigment, kwaye ifanelekile kwiipeyinti zemibala kunye neenki.Ukuze kuphuculwe izinga eliphezulu lokunyanga, i-polyester acrylate ye-multifunctional ingalungiswa;I-Amine eguqulelwe i-polyester acrylate ayikwazi ukunciphisa kuphela impembelelo ye-oxygen polymerization inhibition kunye nokuphucula izinga lokunyanga, kodwa iphucula ukunamathela, i-gloss kunye nokuxhatshazwa kokugqoka.
I-diluents esebenzayo idla ngokuba namaqela asebenzayo, anokuthi anyibilikise kwaye adibanise i-oligomers, kwaye adlale indima ebalulekileyo kwinkqubo yokunyanga ukukhanya kunye neempawu zefilimu.Ngokwenani lamaqela asebenzayo aqulethwe, i-monofunctional diluents esebenzayo eqhelekileyo iquka i-isodecyl acrylate, i-lauryl acrylate, i-hydroxyethyl methacrylate, i-glycidyl methacrylate, njl.I-Bifunctional diluents esebenzayo ibandakanya i-polyethylene glycol diacrylate series, i-dipropylene glycol diacrylate, i-neopenyl glycol diacrylate, njl;Izixhobo ezininzi zokuxutywa ezisebenzayo ezifana ne-trimethylolpropane triacrylate, njl.
Umqalisi unempembelelo ebalulekileyo kwizinga lokunyanga iimveliso zokunyanga ze-UV.Kwiimveliso zokunyanga ze-UV, inani elongezelelweyo le-photoinitiator lihlala li-3% ~ 5%.Ukongeza, ii-pigments kunye ne-filler additives zinefuthe elibalulekileyo kwiipropathi zokugqibela ze-UV zonyango.
Ixesha lokuposa: Apr-20-2022