Ukufakwa kwe-UV curing (UV) kuwuhlobo olusha lokunamathela kwemvelo.Izinga layo lokoma liyashesha kakhulu.Ingelapheka ukukhanya kwe-UV emizuzwaneni embalwa, futhi ukusebenza kahle kokukhiqiza kuphezulu.
Izembatho zokuphulukisa ze-UV zakhiwa ikakhulukazi ama-oligomers, ama-diluent asebenzayo, ama-photoinitiators nezithasiselo.
1. Oligomer
Ifilimu yokwakha impahla iyisici esiyinhloko sokumboza, okuyingxenye yoketshezi yokugqoka.Ukusebenza kwefilimu, ukusebenza kokwakhiwa kanye nezinye izakhiwo ezikhethekile zokugqoka ikakhulukazi kuncike ezintweni zokwakha ifilimu.Izinto zokwakha ifilimu ze-UV enamathela i-oligomer, futhi ukusebenza kwayo ngokuyisisekelo kunquma ukusebenza kokwakhiwa kanye nezinga lokuphulukisa ukukhanya kokumbozwa ngaphambi kokuphulukiswa, ukusebenza kwefilimu ngemva kokuphulukiswa nezinye izici ezikhethekile.
Izembatho ze-UV ziyizinhlelo zamahhala zokuphulukisa ukukhanya kwe-radical, ngakho-ke ama-oligomers asetshenzisiwe ayizo zonke izinhlobo zama-acrylic resins.Ama-oligomers we-Cationic UV ahlanganisa i-epoxy resin kanye ne-vinyl ether compounds.
2.I-diluent esebenzayo
I-diluent esebenzayo ingenye ingxenye ebalulekile ye-UV enamathelayo.Inganciphisa futhi inciphise i-viscosity, futhi ibe nempahla yokulungisa ifilimu yokuphulukisa.Ama-monomers asebenzayo e-Acrylate anokusebenza kabusha okuphezulu kanye nokuguquguquka okuphansi, ngakho-ke asetshenziswa kabanzi embotsheni ye-UV.Ama-acrylic esters avame ukusetshenziswa njengezihlambululi ezisebenzayo zezingubo ze-UV.Kufomula yangempela, i-mono -, i-acrylates esebenza kabili futhi enemisebenzi eminingi izosetshenziswa ndawonye ukwenza izakhiwo zabo zihambisane futhi kuzuzwe inhloso yomphumela omuhle ophelele.
3. I-Photoinitiator
I-Photoinitiator iyisisusa esikhethekile embotsheni ye-UV.Iyingxenye ebalulekile yezingubo ze-UV futhi inquma izinga lokuphulukisa le-UV lezingubo ze-UV.
Ngezingubo ze-UV ezivanisha ezingenambala, 1173, 184, 651 kanye ne-bp/tertiary amine zivame ukusetshenziswa njengama-photoinitiators.184 enomsebenzi ophezulu, iphunga eliphansi kanye nokumelana nokuphuzi, iyi-photoinitiator ethandwayo yezingubo ze-UV ezingazweli ukuphuzi.Ukuze kuthuthukiswe izinga lokuphulukisa ukukhanya, kuvame ukusetshenziswa ngokuhambisana ne-TPO.
Ezimbotsheni ze-UV ezinombala, ama-photoinitiators kufanele abe yi-itx, 907, 369, TPO, 819, njll. Ngezinye izikhathi, ukuze kuncishiswe ukuvinjelwa kwe-oxygen polymerization futhi kuthuthukiswe izinga lokuphulukisa kwe-UV, inani elincane le-amine elisebenzayo livame ukungezwa ezimbotsheni ze-UV.
4. Izithasiselo
Izithasiselo ziyizingxenye ezisizayo zezingubo ze-UV.Indima yezithasiselo ukuthuthukisa ukusebenza kokucubungula, ukusebenza kwesitoreji kanye nokusebenza kokwakhiwa kwe-coating, ukuthuthukisa ukusebenza kwefilimu futhi kunikeze ifilimu ngemisebenzi ethile ekhethekile.Izithasiselo ezisetshenziswa kakhulu ezimbotsheni ze-UV zifaka i-defoamer, i-ejenti yokulinganisa, i-dispersant yokumanzisa, iphromotha yokunamathela, i-ejenti yokuhlanganisa, i-polymerization inhibitor, njll., edlala izindima ezihlukene embotsheni ye-UV.
Isikhathi sokuthumela: Jul-05-2022