Classification thiab daim ntawv thov ntawm UV curing khoom

Lub teeb curing tshuab yog kev ua haujlwm siab, kev tiv thaiv ib puag ncig, txuag hluav taws xob thiab cov khoom siv zoo tshaj plaws.Nws yog lub npe hu ua ib tug tshiab technology rau ntsuab kev lag luam nyob rau hauv lub xyoo pua 21st.Nrog rau txoj kev loj hlob ntawm kev tshawb fawb thiab thev naus laus zis, daim ntawv thov ntawm lub teeb kho tshuab tau tsim los ntawm cov ntawv luam tawm ntxov tshaj plaws thiab photoresist mus rau lub teeb curing txheej, number case thiab nplaum.Daim ntawv thov teb tau nthuav dav thiab tsim kev lag luam tshiab.

Cov khoom siv UV kho feem ntau yog UV txheej, UV inks thiab UV nplaum.Lawv qhov loj tshaj plaws yog tias lawv muaj tus nqi kho sai, feem ntau ntawm ob peb feeb thiab kaum vib nas this.Qhov ceev tshaj plaws tuaj yeem kho tau hauv 0.05 ~ 0.1s.Lawv yog qhov ceev tshaj plaws kom qhuav thiab kho ntawm ntau yam txheej, inks thiab adhesives tam sim no.

UV curing yog UV curing.UV yog cov lus Askiv luv ntawm UV.Curing yog hais txog cov txheej txheem ntawm kev hloov cov tshuaj los ntawm cov molecules qis rau polymers.UV curing feem ntau yog hais txog cov txheej txheem kho lossis cov txheej txheem ntawm cov txheej txheem (xim), inks, adhesives (glues) los yog lwm yam potting sealants uas yuav tsum tau kho los ntawm UV, uas txawv ntawm cua sov curing, bonding agent (curing agent) curing, natural kev kho mob, thiab lwm yam. [1].

Cov khoom tseem ceeb ntawm cov khoom kho lub teeb muaj xws li oligomers, nquag diluents, photoinitiators, additives thiab lwm yam.Oligomer yog lub cev tseem ceeb ntawm UV kho cov khoom, thiab nws qhov kev ua tau zoo yog txiav txim siab qhov ua tau zoo ntawm cov ntaub ntawv kho.Yog li ntawd, kev xaiv thiab tsim ntawm oligomer yog undoubtedly ib qho tseem ceeb txuas nyob rau hauv lub formulation ntawm UV curing khoom.

Dab tsi cov oligomers muaj nyob rau hauv ib qho yog tias lawv txhua tus muaj "Unsaturated ob daim ntawv cog lus resins yog qeb raws li cov tshuaj tiv thaiv ntawm cov dawb radical polymerization: acryloyloxy> Methacryloyloxy> vinyl> allyl.Yog li ntawd, cov oligomers siv nyob rau hauv dawb radical lub teeb curing yog tsuas yog txhua yam ntawm acrylic resins, xws li epoxy acrylate, polyurethane acrylate, polyester acrylate, polyether acrylate, acrylate resin los yog vinyl resin, thiab epoxy acrylate yog feem ntau siv Acrylic resin, polyurethane. acrylic resin thiab polyester acrylic resin.Peb cov resins no luv luv qhia hauv qab no.

Epoxy acrylate yog feem ntau siv thiab siv lub teeb kho oligomer.Nws yog npaj los ntawm epoxy resin thiab (meth) acrylate.Epoxy acrylate tuaj yeem muab faib ua bisphenol A epoxy acrylate, phenolic epoxy acrylate, hloov kho epoxy acrylate thiab epoxidated acrylate raws li hom qauv.Bisphenol A epoxy acrylate yog siv dav tshaj plaws.Bisphenol A epoxy acrylate yog ib qho ntawm cov oligomers nrog lub teeb kho ceev tshaj plaws.Cov zaj duab xis kho tau zoo hardness, siab gloss, zoo heev tshuaj tsis kam, zoo kub kuj thiab hluav taws xob zog.Tsis tas li ntawd, bisphenol A oxygen exchange acrylate muaj cov khoom siv raw khoom yooj yim thiab tus nqi qis.Yog li ntawd, nws yog feem ntau siv los ua lub ntsiab cob ntawm lub teeb curing ntawv, ntoo, yas thiab hlau coatings, raws li zoo raws li lub ntsiab resin ntawm lub teeb curing number case thiab lub teeb curing nplaum.

Polyurethane acrylate

Polyurethane acrylate (PUA) yog lwm qhov tseem ceeb ntawm lub teeb kho oligomer.Nws yog synthesized los ntawm ob-kauj ruam cov tshuaj tiv thaiv ntawm polyisocyanate, ntev-chain diol thiab hydroxyl acrylate.Vim muaj ntau yam qauv ntawm polyisocyanates thiab cov saw ntev diols, oligomers nrog cov khoom tsim tau raug tsim los ntawm kev tsim molecular.Yog li ntawd, lawv yog cov oligomers nrog cov khoom lag luam tshaj plaws nyob rau tam sim no, thiab tau siv dav hauv cov txheej txheem kho lub teeb, inks thiab adhesives.

Polyester Acrylate

Polyester acrylate (PEA) kuj yog ib hom oligomer.Nws yog npaj los ntawm acrylate ntawm tsawg molecular hnyav polyester glycol.Polyester acrylate yog tus cwj pwm los ntawm tus nqi qis thiab qis viscosity.Vim nws cov viscosity tsawg, polyester acrylate tuaj yeem siv ua ob qho tib si oligomer thiab nquag diluent.Tsis tas li ntawd, polyester acrylates feem ntau muaj ntxhiab tsw, tsis tshua muaj khaus, zoo saj zawg zog thiab pigment wettability, thiab haum rau xim xim thiab inks.Txhawm rau txhim kho tus nqi kho kom zoo, cov khoom siv ntau yam polyester acrylate tuaj yeem npaj tau;Amine hloov polyester acrylate tuaj yeem tsis tsuas yog txo cov kev cuam tshuam ntawm oxygen polymerization inhibition thiab txhim kho tus nqi kho, tab sis kuj txhim kho qhov adhesion, gloss thiab hnav tsis kam.

Active diluents feem ntau muaj cov pab pawg reactive, uas tuaj yeem yaj thiab dilute oligomers, thiab ua lub luag haujlwm tseem ceeb hauv cov txheej txheem kho lub teeb thiab cov yeeb yaj kiab.Raws li tus naj npawb ntawm pawg reactive muaj, ntau monofunctional active diluents muaj xws li isodecyl acrylate, lauryl acrylate, hydroxyethyl methacrylate, glycidyl methacrylate, thiab lwm yam;Bifunctional active diluents muaj xws li polyethylene glycol diacrylate series, dipropylene glycol diacrylate, neopentyl glycol diacrylate, thiab lwm yam;Multifunctional active diluents xws li trimethylolpropane triacrylate, thiab lwm yam.

Initiator muaj qhov tseem ceeb ntawm kev kho tus nqi ntawm UV curing khoom.Hauv cov khoom siv UV kho, qhov sib ntxiv ntawm photoinitiator feem ntau yog 3% ~ 5%.Tsis tas li ntawd, pigments thiab muab tub lim additives kuj muaj qhov cuam tshuam tseem ceeb ntawm cov khoom kawg ntawm UV kho cov khoom.