UV imhando yekuputira iyo inogona kukurumidza kurapa kuita firimu mumasekonzi mashoma pasi pekuvhenekera kwe ultraviolet (UV).UV coating inotenderedzwa otomatiki uye yakapfapfaidzwa pabhodhi refenicha kuburikidza nemichina nemidziyo.Pasi pekuvhenekera kwechiedza che ultraviolet, inosimudzira kuparara kweiyo initiator, inogadzira mahara radicals, inokonzera resin reaction, uye pakarepo inoomesa kuita firimu pasina solvent volatilization.Nokudaro, inonyanya kushanda, yakasvibirira uye yakasvibirira zvakatipoteredza.
Pasi pemaitiro akajairwa eiyo hydration, Waterborne UV mabhanhire zvakare akabudirira kuiswa muhuni, mapurasitiki, kudhinda, makemikari emazuva ese uye mamwe minda nekuda kwehushamwari hwavo hwezvakatipoteredza uye hushamwari hwekuvaka.Raw materials inoita basa rinokosha.Iko kuenderera mberi kwekuvandudza kwekuita, maitiro uye mashandisirwo ekugadzirisa emvura machira anosimudzira maitiro e resin hydration.
1 epoxy acrylate / polyurethane acrylate composite system
Photosensitive oligomer ndiyo chikamu chikuru cheUV yakarapwa resin, iyo inotemesa zvimiro zveyakarapwa resin.Mhando dzese dzematrix resin dzine zvadzo zvisingadzoreki, asi dzinenge dziine hurema.Semuyenzaniso, epoxy resin based curring film ine kuomarara kwepamusoro, kunamatira kwakanaka, kupenya kwakakwira uye nekupokana kwemakemikari, asi ine mhedzisiro yekusagadzikana.Mumwe muenzaniso ndewekuti polyurethane based resin ine yakanakisa zvimiro senge kupfeka kuramba uye kukwenya kuramba, asi kusamira kwayo kwemamiriro ekunze hakuna kukwana.Vatsvaguri vanoshandisa nzira dzekusanganisa kana dzakasanganiswa kusanganisa izvo zviviri, kuitira kuti vagadzirise kushomeka kweresin imwechete uye kugadzira sisitimu ine zvese zvakanaka hunhu.
2 dendritic kana hyperbranched system
Mvura inotakura UV inorapika dendrimers kana hyperbranched oligomers rudzi rutsva rwemapolymer ane spherical kana dendritic chimiro uye hapana kupindirana pakati pemamorekuru cheni.Uyezve, iyo yakanyanya branched polymer chimiro ine nhamba huru yeanoshanda ekupedzisira mapoka.Aya mapoka ekupedzisira anoshanda anogadziridzwa kuti agadzirise zvimiro zvepolymer uye kuishandisa kune chaiyo minda.Kuenzaniswa nemapolymers ane mutsara ane huremu hwakaenzana, hyperbranched oligomers ane zvimiro zvakanaka senge yakaderera kunyungudika, yakaderera viscosity, kunyungudika nyore uye yakakwirira reactivity.Iwo akanakira zvinhu zvemvura inovheneka kurapa matrix resins.Iyo yemvura-yakavakirwa hyperbranched polyester inoumbwa ne polyhydroxy inoshanda aliphatic polyester sezvo musimboti unogona kudzikisa dilution mvura uye kuratidza yakanaka viscosity yekudzikisa mhedzisiro nekuda kwekunaka kwayo kunyungudika kwemvura uye kushoma viscosity.
3 epoxy soybean mafuta acrylate
Epoxy soya mafuta ane zvakanakira mutengo wakaderera, kuchengetedzwa kwezvakatipoteredza, refu molecular cheni uye pakati nepakati crosslinking density.Inogona kuvandudza zvakanyanya kushanduka uye kunamatira kwekuputira.Mumakore achangopfuura, yave inzvimbo yekutsvagisa mumunda wejasi kumba nekune dzimwe nyika.Kubudirira kwakanaka kwakaitwa mu epoxy soya bean oiri acrylate uye yakagadziridzwa epoxy soybean oiri acrylate UV yemahara radical kurapa machira muChina.Kambani yeCub muUnited States yakaita kugadzirwa kwekutengesa, senge ebercy860.Nzira yekubatanidza ye epoxy soyabhinzi oiri acrylate inowanzoita semi ester modification nzira, inova esterificate epoxy soybean oiri ne acrylic acid.
Nguva yekutumira: May-25-2022