Nkà na ụzụ ọgwụgwọ UV bụ ụdị arụmọrụ dị elu, nchekwa gburugburu ebe obibi, nchekwa ike na teknụzụ elu ihe dị elu.A maara ya dị ka nkà na ụzụ ọhụrụ maka ụlọ ọrụ akwụkwọ ndụ akwụkwọ ndụ na narị afọ nke 21.Site na mmepe nke sayensị na teknụzụ, ngwa nke teknụzụ ọgwụgwọ UV amalitela site na bọọdụ mbụ ebipụtara na fotoresisist ruo mkpuchi mkpuchi UV, ink na adhesives.Mpaghara ngwa a na-agbasawanye, na-etolite ụlọ ọrụ ọhụrụ.
A na-ekekarị ngwaahịa na-agwọ ọrịa UV ka ọ bụrụ mkpuchi UV, ink UV na nrapado UV.Ihe kachasị ha mma bụ na ha nwere ọnụ ọgụgụ ọgwụgwọ ngwa ngwa, n'ozuzu n'etiti sekọnd ole na ole na iri nke sekọnd, na nke kachasị ngwa ngwa nwere ike gwọọ n'ime 0.05 ~ 0.1s.Ha bụ ihicha na ọgwụgwọ ngwa ngwa n'etiti mkpuchi dị iche iche, ink na nrapado ugbu a.
Ngwọta UV pụtara ọgwụgwọ UV.UV bụ ndebiri Bekee nke UV.Ngwọta na-ezo aka na usoro nke ihe na-agbanwe site na obere ụmụ irighiri ihe gaa na polymers.Ngwọta UV n'ozuzu na-ezo aka na ọnọdụ ọgwụgwọ ma ọ bụ ihe ndị chọrọ mkpuchi (agba), inks, adhesives (glues) ma ọ bụ ihe mkpuchi ndị ọzọ na-achọ ọgwụgwọ UV, nke dị iche na ọgwụgwọ kpo oku, na-agwọ ya na adhesives (ndị na-agwọ ọrịa), ọgwụgwọ eke, wdg. [1].
Ihe ndị bụ isi nke ngwaahịa ọgwụgwọ UV gụnyere oligomers, diluents na-arụ ọrụ, photoinitiators, ihe mgbakwunye na ihe ndị ọzọ.Oligomer bụ ihe bụ isi nke ngwaahịa ọgwụgwọ UV, yana arụmọrụ ya na-ekpebi isi ọrụ nke ihe a gwọrọ.Ya mere, nhọrọ na imewe nke oligomer bụ ihe ịrụ ụka adịghị ya na njikọ dị mkpa na nhazi nke ngwaahịa ọgwụgwọ UV.
Ihe ndị a oligomers nwere jikọrọ ọnụ bụ na ha niile nwere Unsaturated abụọ bond resins na-họọrọ site mmeghachi omume ọnụego nke free radical polymerization: acryloyloxy> methacrylyloxy> vinyl> allyl. Ya mere, ndị oligomers eji na free radical UV ọgwụgwọ bụ tumadi dị iche iche acrylic resins, dị ka epoxy acrylate, polyurethane acrylate, polyester acrylate, polyether acrylate, acrylate resin ma ọ bụ vinyl resin, nke a na-ejikarị eme ihe bụ epoxy acrylate resin, polyurethane acrylate resin na polyester acrylic resin.A na-ewebata resin atọ ndị a nkenke n'okpuru.
Epoxy acrylate
Uru Epoxy acrylic acid bụ nke a na-ejikarị na ọnụ ọgụgụ kachasị ukwuu nke ọgwụgwọ oligomer UV ugbu a.A na-akwado ya site na resin epoxy na (meth) acrylate.Enwere ike kewaa Epoxy acrylates na bisphenol A epoxy acrylates, phenolic epoxy acrylates, gbanwetụrụ epoxy acrylates na epoxidized acrylates dị ka ụdị nhazi ha si dị, na bisphenol A epoxy acrylates bụ nke a na-ejikarị eme ihe.
Bisphenol A epoxy acrylate bụ otu n'ime oligomer nwere ọnụego ọgwụgwọ ọkụ kachasị ọsọ.Ihe nkiri a gwọrọ nwere ike siri ike, nnukwu gloss, nguzogide kemịkalụ dị mma, ezigbo ọkụ ọkụ na ihe ọkụ eletrik.Na mgbakwunye, bisphenol A oxygen Exchange acrylate nwere usoro akụrụngwa dị mfe yana ọnụ ala dị ala.Ya mere, a na-ejikarị ya eme ihe dị ka isi resin maka ọkụ ọkụ akwụkwọ, osisi, plastic na metal mkpuchi, nakwa dị ka isi resin maka ìhè agwọ ink na ìhè agwọ nrapado.
Polyurethane acrylate
Polyurethane acrylate (PUA) bụ ihe ọzọ dị mkpa UV na-agwọta oligomer.A na-emepụta ya site na mmeghachi omume nzọụkwụ abụọ nke polyisocyanate, diol ogologo ogologo na hydroxyl acrylate.N'ihi ọtụtụ ihe owuwu nke polyisocyanates na ogologo agbụ diols, oligomers nwere ihe ndị a na-eme ka a na-emepụta site na imepụta ihe omimi.Ya mere, ha bụ oligomers nwere ụdị ngwaahịa kachasị ugbu a, a na-ejikwa ya na mkpuchi mkpuchi UV, ink na adhesives.
Polyester Acrylate
Polyester acrylate (PEA) bụkwa oligomer nkịtị, nke a na-akwadebe site na polyester glycol dị arọ nke dị ala site na acrylate.A na-eji polyester acrylate mara ọnụ ahịa dị ala na obere viscosity.N'ihi obere viscosity ya, a pụrụ iji polyester acrylate mee ihe dị ka ma oligomer na diluent na-arụ ọrụ.Na mgbakwunye, ọtụtụ acrylates polyester nwere obere isi, mgbakasị ahụ dị ala, mgbanwe dị mma na wettability pigmenti, dịkwa mma maka agba agba na inks.Iji meziwanye ọnụego ọgwụgwọ dị elu, enwere ike ịkwadebe polyester acrylate multifunctional;Amine modified polyester acrylate nwere ike ọ bụghị naanị ibelata mmetụta nke mgbochi polymerization oxygen, melite ọnụego ọgwụgwọ, kamakwa melite nrapado, gloss na iyi nguzogide.
Ihe na-eme ihe na-arụ ọrụ na-enwekarị ndị na-emegharị ihe, nke nwere ike igbari ma na-agbaze oligomer, ma na-arụ ọrụ dị mkpa na usoro ọgwụgwọ UV na ihe nkiri.Dị ka ọnụ ọgụgụ nke ndị na-emeghachi omume, ihe ndị na-arụ ọrụ monofunctional na-emekarị gụnyere isodecyl acrylate, lauryl acrylate, hydroxyethyl methacrylate, glycidyl methacrylate, wdg;Ihe na-arụ ọrụ na-arụ ọrụ na-agụnye polyethylene glycol diacrylate series, dipropylene glycol diacrylate, neopentyl glycol diacrylate, wdg;Multifunctional arụ ọrụ diluents dị ka trimethylolpropane triacrylate, wdg [2].
Onye mbido nwere mmetụta dị mkpa na ọnụọgụ ọgwụgwọ nke ngwaahịa UV.Na ngwaahịa ọgwụgwọ UV, ọnụọgụ fotoinitiator bụ n'ozuzu 3% ~ 5%.Na mgbakwunye, pigmenti na ihe mgbakwunye na-enwekwa mmetụta dị mkpa na arụmọrụ ikpeazụ nke ngwaahịa UV gwọrọ.
Oge nzipu: Jun-15-2022