Ultraviolet kurapa (UV) kupfekedza rudzi rutsva rwekuchengetedza nharaunda.Kuoma kwayo kunokurumidza.Inogona kurapwa neUV mwenje mumasekonzi mashoma, uye kugona kwekugadzira kwakakwira.
UV anorapika machira anonyanya kuumbwa ne oligomers, anoshanda diluents, photoinitiators uye additives.
1. oligomer
Mafirimu ekugadzira chinhu ndicho chinhu chikuru chekuputira, uye ndicho chikamu chemvura yekupfeka.Kuita kwefirimu, kushanda uye zvimwe zvakakosha zvekuvhara zvinonyanya kuenderana nefirimu-kugadzira zvinhu.Iyo firimu-inogadzira zvinhu zveUV coating ndeye oligomer.Kuita kwayo kunoteya mashandiro echishandiso, chiyero chekuporesa chiyero, kuita kwemafirimu uye zvimwe zvakakosha zvimiro zvejasi risati rapora.
UV mabhanhire akanyanya emahara radical chiedza chekurapa masisitimu, saka maoligomers anoshandiswa akasiyana acrylic resins.Cationic UV yekupfekedza oligomers epoxy resin uye vinyl ether makomisheni.
2. inoshanda diluent
Active diluent chimwe chinhu chakakosha cheUV coating.Inogona kuderedza uye kuderedza viscosity, uye inogonawo kugadzirisa kushanda kwefirimu rakarapwa.Acrylate inoshanda monomers ine yakakwira reactivity uye yakaderera volatility, saka ivo vanoshandiswa zvakanyanya muUV coatings.Acrylic esters inowanzo shandiswa seanoshanda diluents eUV coatings.Mukugadzirwa chaiko, mono -, Bi -, uye akawanda-anoshanda acrylates achashandiswa pamwechete kuita kuti zvivakwa zvavo zvienderane uye kuwana yakanaka yakazara mhedzisiro.
3. photoinitiator
Photoinitiator chinhu chakakosha chinokonzeresa muUV machira.Icho chikamu chakakosha cheUV coatings uye inosarudza iyo UV yekurapa mwero weUV majasi.
Kune isina ruvara varnish UV coatings, 1173, 184, 651 uye bp/tertiary amine inowanzoshandiswa semafotoinitiators.184 ine chiitiko chepamusoro, kunhuhwirira kwakaderera uye yero kuramba, ndiyo inosarudzika photoinitiator yeyero inodzivirira UV machira.Kuti uvandudze chiyero chekuporesa chiedza, chinowanzoshandiswa pamwe chete neTPO.
Kune asiri-ferrous UV coatings, photoinitiators inofanira kuva itx, 907, 369, TPO, 819, etc. Dzimwe nguva, kuitira kuderedza oksijeni polymerization inhibition uye kuvandudza UV kurapa chiyero, shoma shoma yeamine inoshanda inowanzowedzerwa muUV. coatings.
4. zvinowedzera
Zviwedzerwa ndizvo zvikamu zvekubatsira zveUV coatings.Basa rezviwedzere ndere kuvandudza mashandiro ekugadzirisa, kuchengetedza mashandiro uye mashandiro ekushandisa kwejasi, kuvandudza kuita kwefirimu uye kupa iyo firimu nemamwe mabasa akakosha.Anowanzo shandiswa ekuwedzera eUV majasi anosanganisira defoamer, leveling agent, wetting dispersant, adhesion promotional, matting agent, polymerization inhibitor, nezvimwewo, ayo anotamba mabasa akasiyana mumajasi eUV.
Nguva yekutumira: Aug-02-2022