Itekhnoloji yokunyanga ye-UV luhlobo lobuchule obuphezulu, ukhuseleko lokusingqongileyo, ukonga umbane kunye nomgangatho ophezulu wetekhnoloji yomphezulu wemathiriyeli.Yaziwa njengetekhnoloji entsha yoshishino oluluhlaza kwinkulungwane yama-21.Ngophuhliso lwesayensi kunye netekhnoloji, ukusetyenziswa kwetekhnoloji yokunyanga ye-UV kuye kwaphuhliswa ukusuka kwezona bhodi ziprintiweyo zakuqala kunye ne-photoresists ukuya kwiingubo zokunyanga ze-UV, ii-inki kunye nezinto zokuncamathelisa.Intsimi yesicelo iye yanda, isenza ishishini elitsha.
Iimveliso zokunyanga ze-UV zihlala zohlulwa ngokweengubo ze-UV, ii-inks ze-UV kunye ne-UV encamathelayo.Eyona nto ibaluleke kakhulu kukuba banesantya sokunyanga ngokukhawuleza, ngokubanzi phakathi kwemizuzwana embalwa kunye namashumi emizuzwana, kwaye eyona nto ikhawulezayo inokunyangwa ngaphakathi kwe-0.05 ~ 0.1s.Zezona zomiswe ngokukhawuleza kunye nokunyanga phakathi kwee-coatings ezahlukeneyo, ii-inki kunye ne-adhesives okwangoku.
Ukunyanga kwe-UV kuthetha ukunyanga kwe-UV.UV sisishunqulelo sesiNgesi se-UV.Ukunyanga kubhekiselele kwinkqubo yokutshintsha kwezinto 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 kwe-UV, ezahlukileyo kunyango lokufudumeza, ukunyanga ngezinto zokuncamathelisa (iiarhente zokunyanga), ukunyanga kwendalo, njl. [1].
Izinto ezisisiseko zeemveliso zokunyanga ze-UV 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 zinee-resins ze-Unsaturated double bond zibekwe ngokwezinga lokuphendula i-polymerization ye-radical yamahhala: acryloyloxy > methacrylyloxy > vinyl > allyl. Ngoko ke, ii-oligomers ezisetyenziselwa ukunyanga kwe-Unsaturated ye-Unsaturated ubukhulu becala ziyi-resin ezahlukahlukeneyo ze-acrylic, ezifana ne-epoxy acrylate, i-polyurethane acrylate, i-polyester acrylate, i-polyether acrylate, i-acrylate resin okanye i-vinyl resin, kunye neyona nto isetyenziswa kakhulu yi-epoxy acrylate resin, i-polyurethane acrylate resin kunye ne-polyester acrylic resin.Ezi ntlanu zintathu zaziswe ngokufutshane apha ngezantsi.
I-epoxy acrylate
Ixabiso le-epoxy acrylic acid lelona lisetyenziswa kakhulu kunye nelona nani likhulu le-oligomer yokunyanga ye-UV okwangoku.Ilungiswe ukusuka kwi-epoxy resin kunye ne (meth) acrylate.I-epoxy acrylates inokohlulwa ibe yi-bisphenol A epoxy acrylates, i-phenolic epoxy acrylates, i-epoxy acrylates eguquliweyo kunye ne-epoxidized acrylates ngokweentlobo zazo zesakhiwo, kunye ne-bisphenol A epoxy acrylates zezona zisetyenziswa 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, iqhele ukusetyenziswa njengeyona resin ephambili yokunyanga ukukhanya kwephepha, iinkuni, iplastiki kunye neengubo zentsimbi, kwaye njengeyona resin ephambili yokunyanga i-inki kunye nokuncamathelisa ukukhanya.
Polyurethane acrylate
I-polyurethane acrylate (PUA) yenye i-oligomer ebalulekileyo enyangekayo ye-UV.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 kakhulu kwiingubo zokunyanga ze-UV, ii-inki kunye ne-adhesives.
Polyester Acrylate
I-polyester acrylate (PEA) nayo i-oligomer eqhelekileyo, elungiselelwe ukusuka kwi-molecular weight polyester glycol nge-acrylate.I-polyester acrylate ibonakala ngexabiso eliphantsi kunye ne-viscosity ephantsi.Ngenxa ye-viscosity ephantsi, i-polyester acrylate ingasetyenziswa njenge-oligomer kunye ne-diluent esebenzayo.Ukongezelela, i-polyester acrylates eninzi inevumba eliphantsi, ukucaphuka okuphantsi, ukuguquguquka okulungileyo kunye nokumanzi kwe-pigment, kwaye ifanelekile kwiipeyinti zombala 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, ukuphucula izinga lokunyanga, kodwa iphucula ukunamathela, i-gloss kunye nokumelana nokugqoka.
I-diluents esebenzayo ihlala iqulethe amaqela asebenzayo, anokuthi anyibilikise kwaye adibanise i-oligomers, kwaye adlale indima ebalulekileyo kwinkqubo yokunyanga ye-UV kunye neempawu zefilimu.Ngokwenani lamaqela asebenzayo, 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;I-diluents esebenzayo enemisebenzi emininzi efana ne-trimethylolpropane triacrylate, njl. [2].
Umqalisi unempembelelo ebalulekileyo kwizinga lokunyanga iimveliso zokunyanga ze-UV.Kwiimveliso zokunyanga ze-UV, inani le-photoinitiator lihlala li-3% ~ 5%.Ukongeza, ii-pigments kunye ne-filler additives zinefuthe elibalulekileyo ekusebenzeni kokugqibela kweemveliso eziphilisiweyo ze-UV.
Ixesha lokuposa: Jun-15-2022