O tekinolosi faʻamalolo UV o se ituaiga o maualuga-lelei, puipuiga o le siosiomaga, faʻasaoina o le malosi ma le maualuga o mea tekonolosi luga.Ua lauiloa o se tekinolosi fou mo alamanuia lanu meamata i le 21st seneturi.Faatasi ai ma le atinaʻeina o le saienisi ma tekinolosi, o le faʻaogaina o le UV curing technology ua atiaʻe mai le uluaʻi laupapa lolomi ma photoresists i UV faʻamaʻiina coatings, inks ma adhesives.Ua fa'alauteleina le fanua talosaga, ua fausia ai se pisinisi fou.
O oloa fa'amaloloina o le UV e masani ona vaevaeina i fa'aofuofu UV, vaitusi UV ma fa'apipi'i UV.O la latou pito sili ona taua o loʻo i ai le vave faʻamalolo, masani i le va o ni nai sekone ma le sefulu sekone, ma o le sili ona vave e mafai ona faʻamalolo i totonu ole 0.05 ~ 0.1s.O le fa'amago ma le fa'amalologa sili ona vave i totonu o fa'alavalava eseese, vaitusi ma mea fa'apipi'i i le taimi nei.
UV curing o lona uiga ole UV curing.UV o le faapuupuuga faaPeretania o le UV.Fa'amalologa e fa'atatau i le fa'agasologa o mea e sui mai mole mole maualalo i polymers.O le faʻamaloloina o le UV e masani lava ona faʻatatau i tulaga faʻamalolo poʻo manaʻoga o paʻu (vali), vaitusi, faʻapipiʻi (kelu) poʻo isi faʻamaufaʻailoga e manaʻomia ai le faʻamaʻiina o le UV, e ese mai le faʻamafanafanaina, faʻamalolo faʻatasi ma mea faʻapipiʻi (mea faʻamalolo), faʻamalolo masani, ma isi. [1].
O vaega autu o oloa faʻamalolo UV e aofia ai oligomers, diluents malosi, photoinitiators, additives ma isi.Oligomer o le tino autu o oloa faʻamalolo UV, ma o lona faʻatinoga e faʻamoemoeina ai le faʻatinoga autu o mea faʻamalolo.O le mea lea, o le filifilia ma le mamanu o le oligomer e le masalomia o se fesoʻotaʻiga taua i le faʻatulagaina o oloa faʻamalolo UV.
O le a le mea e tutusa ai nei oligomers o loʻo i ai uma i latou resins fusi lua Unsaturated e faʻavasegaina i le fua o le tali o polymerization radical free: acryloyloxy> methacrylyloxy> vinyl> allyl.O lea, o le oligomers o loʻo faʻaaogaina i le faʻamalolo fua o le UV faʻamalolo e tele lava resins acrylic eseese, e pei o le epoxy acrylate, polyurethane acrylate, polyester acrylate, polyether acrylate, acrylate resin poʻo le vinyl resin, ma o le sili ona faʻaaogaina o le epoxy acrylate resin, polyurethane acrylate resin ma polyester acrylic resin.O nei resini e tolu o loʻo faʻaalia puupuu i lalo.
Epoxy acrylate
Epoxy acrylic acid tau o le sili ona fa'aoga lautele ma le tele o le UV curing oligomer i le taimi nei.E saunia mai le epoxy resin ma (meth) acrylate.Epoxy acrylates e mafai ona vaevaeina i bisphenol A epoxy acrylates, phenolic epoxy acrylates, suia epoxy acrylates ma epoxidized acrylates e tusa ai ma o latou ituaiga fausaga, ma bisphenol A epoxy acrylates e sili ona faʻaaogaina.
Bisphenol O le epoxy acrylate o se tasi o oligomers e sili ona vave faʻamalolo moli.O le ata faʻamalolo e maualuga le maʻaʻa, maualuga iila, sili atu vailaʻau faʻamaʻi, vevela lelei ma mea eletise.E le gata i lea, o le bisphenol A okesene exchange acrylate o lo'o i ai se fua fa'atatau faigofie ma tau maualalo.O le mea lea, e masani ona faʻaaogaina e avea ma resin autu mo pepa faʻamalama malamalama, fafie, palasitika ma uʻamea faʻapipiʻi, faʻapea foʻi ma le resin autu mo vaitusi faʻamalama malamalama ma faʻapipiʻi faʻamaʻi.
Polyurethane acrylate
Polyurethane acrylate (PUA) o se isi oligomer e mafai ona togafitia le UV.O loʻo faʻapipiʻiina e ala i le lua-laasaga faʻaalia o le polyisocyanate, umi-chain diol ma le hydroxyl acrylate.Ona o le tele o fausaga o polyisocyanates ma filifili umi-diols, oligomers ma meatotino seti ua tuufaatasia e ala i mamanu mole.O le mea lea, o latou oligomers ma le tele o ituaiga oloa i le taimi nei, ma o loʻo faʻaaogaina lautele i le faʻamaloloina o le UV coatings, inks ma adhesives.
Polyester Acrylate
Polyester acrylate (PEA) o se oligomer masani foi, lea e saunia mai le mamafa mole mole mamafa polyester glycol e acrylate.Polyester acrylate o loʻo faʻaalia i le tau maualalo ma le maualalo o le viscosity.Ona o lona viscosity maualalo, polyester acrylate e mafai ona faʻaaogaina e fai ma oligomer ma faʻamalosi malosi.E le gata i lea, o le tele o polyester acrylates e maualalo le manogi, maualalo le ita, fetuutuunai lelei ma pigmenti susu, ma e talafeagai mo vali lanu ma vaitusi.Ina ia faʻaleleia le maualuga o le faʻamalolo, e mafai ona saunia le polyester acrylate multifunctional;Amine suia polyester acrylate e le gata e mafai ona faaitiitia le aafiaga o le okesene polymerization inhibition, faaleleia le fua faatatau faamalolo, ae faaleleia foi le pipii, susulu ma ofuina tetee.
O lo'o fa'agaoioi e masani ona i ai vaega fa'afoliga, lea e mafai ona fa'amavae ma fa'alili oligomers, ma faia se sao taua i le fa'agasologa o le fa'amaloloina o le UV ma mea tau ata.E tusa ai ma le numera o vaega reactive, diluents malosi monofunctional masani e aofia ai isodecyl acrylate, lauryl acrylate, hydroxyethyl methacrylate, glycidyl methacrylate, ma isi;Bifunctional diluents malosi e aofia ai polyethylene glycol diacrylate faasologa, dipropylene glycol diacrylate, neopentyl glycol diacrylate, ma isi;Fa'atosina fa'agaoioiga e tele e pei ole trimethylolpropane triacrylate, ma isi. [2].
Initiator ei ai se aafiaga taua i le fua faatatau curing o oloa UV curing.I oloa faʻamalolo UV, o le aofaʻi o le photoinitiator e masani lava 3% ~ 5%.E le gata i lea, o pigments ma mea faʻapipiʻi faʻapipiʻi e iai foi se aafiaga taua i le faʻatinoga mulimuli o oloa faʻamalolo UV.
Taimi meli: Iuni-15-2022