UV kurapa (UV) coating imhando nyowani yezvakatipoteredza zvine hushamwari coating.Kuoma kwayo kunokurumidza.Inogona kurapwa neUV mwenje mumasekonzi mashoma, uye kugona kwekugadzira kwakakwira.
UV kurapa machira anonyanya kuumbwa ne oligomers, anoshanda diluents, photoinitiators uye additives.
1. Oligomer
Mafirimu ekugadzira zvinhu ndicho chikamu chikuru chekuputira, chinova chikamu chemvura yekupfeka.Kuita kwefirimu, kuita kwekuvaka uye zvimwe zvakakosha zvekuvhara zvinonyanya kuenderana nefirimu-kugadzira zvinhu.Iyo firimu-inogadzira zvinhu zveUV coating ndeye oligomer, uye kuita kwayo kunoteya maitirwo ekuvaka uye mwenje wekurapa mwero wekuputira usati wapora, kuita kwefirimu mushure mekurapa uye zvimwe zvakakosha zvinhu.
UV mabhanhire akanyanya emahara radical chiedza chekurapa masisitimu, saka maoligomers anoshandiswa marudzi ese ema acrylic resin.Cationic UV yekupfekedza oligomers epoxy resin uye vinyl ether makomisheni.
2.Active diluent
Active diluent chimwe chinhu chakakosha cheUV coating.Inogona kudzikisa uye kuderedza viscosity, uye zvakare ine midziyo yekugadzirisa iyo inoporesa firimu.Acrylate inoshanda monomers ine yakakwira reactivity uye yakaderera volatility, saka ivo vanoshandiswa zvakanyanya muUV coatings.Acrylic esters inowanzo shandiswa seanoshanda diluents eUV coatings.Mune iyo chaiyo formula, mono -, bifunctional uye akawanda-inoshanda acrylates ichashandiswa pamwechete kuita kuti zvivakwa zvavo zvienderane uye kuzadzisa chinangwa chezvakanaka zvakakwana 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 mavara eUV ane mavara, mafotoinitiators anofanira kunge ari itx, 907, 369, TPO, 819, etc. Dzimwe nguva, kuitira kuderedza oksijeni polymerization inhibition uye kuvandudza chiyero chekurapa kweUV, zvishoma zveamine inogadziriswa inowanzowedzerwa muUV coatings.
4. Zvinowedzera
Zviwedzerwa ndizvo zvikamu zvekubatsira zveUV coatings.Basa rezviwedzerwa nderekuvandudza mashandiro ekugadzirisa, kuchengetedza uye kuita kwekuvaka kweiyo coating, kugadzirisa firimu kuita 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: Jul-05-2022