Chiyembekezo cha zokutira zothira pamadzi za UV

Zovala zokhala ndi madzi za UV zimaphatikizanso ma resin a Madzi a UV, ma photoinitiators, zowonjezera ndi zokutira utoto.Pazigawo zonse, utomoni wa Waterborne UV umakhudza kwambiri magwiridwe antchito a zokutira za UV.Kuchita kwa Waterborne UV resin kumakhudza mphamvu, kukana dzimbiri komanso kuchiritsa kukhudzidwa kwa filimu yochiritsidwa pamwamba pa zokutira [1].Utomoni wokhala ndi madzi umakhudzidwanso ndi photoinitiator.Mothandizidwa ndi photoinitiator, utomoni wamadzi ukhoza kuchiritsidwa pansi pa kuwala.Chifukwa chake, photoinitiator ndi gawo lofunikira la zokutira za UV za Waterborne.Chofunikira chamtsogolo cha photoinitiator ndi polymerizable komanso macromolecular.

Ubwino wa zokutira za UV za Waterborne: kukhuthala kwa zokutira kumatha kusinthidwa popanda kuchepetsedwa ma monomers, kuchotsa kawopsedwe ndi kukwiya kwa zokutira zachikhalidwe.Zowonjezera za Rheological zitha kuwonjezeredwa moyenera kuti muchepetse kukhuthala kwa dongosolo lopaka, lomwe ndi losavuta pakuyika.Chophimbacho chikapangidwa ndi pulasitiki ndi zinthu zina, madzi amatha kugwiritsidwa ntchito ngati osungunula kuti azitha kumamatira pakati pa zokutira ndi zokutira.Imawongolera mphamvu yoteteza fumbi ndi kukanda kwa zokutira musanachiritse, imathandizira kumaliza kwa zokutira, ndipo filimu yochiritsidwa imakhala yopyapyala kwambiri.Zida zokutira ndizosavuta kuyeretsa.Zovala zokhala ndi madzi za UVB zili ndi kuchedwa kwamoto kwabwino.Popeza palibe choyezera chochepa cha mamolekyulu chogwira ntchito chomwe chimagwiritsidwa ntchito, kusinthasintha ndi kuuma kungaganizidwe.

Zopaka zamadzi zokhala ndi utomoni wa UV zimatha kulumikizidwa ndikuchiritsidwa mwachangu pogwiritsa ntchito photoinitiator ndi kuwala kwa ultraviolet.Ubwino waukulu wa utomoni wopangidwa ndi madzi ndikuwongolera kukhuthala, kuyeretsa, kuteteza chilengedwe, kupulumutsa mphamvu komanso kuchita bwino kwambiri, komanso kapangidwe kake ka prepolymer kumatha kupangidwa molingana ndi zosowa zenizeni.Komabe, pali zofooka zina m'dongosolo lino, monga kukhazikika kwa nthawi yayitali kwa njira yobalalitsira madzi yophimba kuyenera kukonzedwa bwino, ndipo kuyamwa kwamadzi kwa filimu yochiritsidwa kuyenera kukonzedwa bwino.Akatswiri ena adanenanso kuti m'tsogolomu, teknoloji yochiritsa kuwala kochokera m'madzi idzayamba muzinthu zotsatirazi.

(1) Kukonzekera kwa oligomers atsopano: kuphatikizira kukhuthala kotsika, ntchito yayikulu, yolimba kwambiri, yogwira ntchito mosiyanasiyana komanso yokhala ndi ma hyperbranched.

(2) Pangani zosakaniza zatsopano zogwira ntchito: kuphatikiza zida zatsopano za acrylate zogwira ntchito, zomwe zimakhala ndi kutembenuka kwakukulu, kuchitanso bwino kwambiri komanso kuchepa kwa voliyumu yotsika.

(3) Kafukufuku wamachitidwe atsopano ochiritsa: kuti athe kuthana ndi vuto la kuchiritsa kosakwanira nthawi zina chifukwa cha kulowa kwa UV pang'ono, njira zochiritsira zapawiri zimatengedwa, monga kuchiritsa kwakukulu kwaufulu / kuchiritsa kwa cationic, kuchiritsa kwaulele kwaufulu, kuchiritsa kwamafuta, Kuchiritsa kwaulele kwaufulu / kuchiritsa kwa anaerobic, kuchiritsa kwaufulu kwaufulu / kunyowa, kuchiritsa kwaulele kwaulere / kuchiritsa kwa redox, kuti apereke kusewera kwathunthu kwa mgwirizano pakati pa awiriwa, Limbikitsani kupititsa patsogolo gawo logwiritsa ntchito zida zochiritsira zokhala ndi madzi. .