Photosensitive resin, feem ntau hu ua UV curable shadowless adhesive, los yog UV resin (adhesive), feem ntau yog tsim los ntawm oligomer, photoinitiator thiab diluent.Nyob rau hauv xyoo tas los no, photosensitive resin tau siv nyob rau hauv kev lag luam tawm ntawm 3D luam ntawv, uas yog nyiam thiab muaj nuj nqis los ntawm kev lag luam vim nws cov yam ntxwv zoo heev.Cov lus nug yog, yog photosensitive resin tshuaj lom?
Tsim lub hauv paus ntsiab lus ntawm photosensitive resin: thaum lub teeb ultraviolet (lub teeb nrog qee qhov wavelength) irradiates ntawm photosensitive resin, photosensitive resin yuav tsim kho cov tshuaj tiv thaiv thiab hloov los ntawm cov kua rau cov khoom.Nws tuaj yeem tswj txoj kev ntawm lub teeb (SLA Technology) lossis ncaj qha tswj cov duab ntawm lub teeb (DLP) thev naus laus zis rau kev kho.Nyob rau hauv txoj kev no, txheej txheej curing dhau los ua qauv.
Photosensitive resins feem ntau yog siv los luam cov qauv zoo thiab cov qauv tsim qauv nrog cov kev xav tau siab rau cov qauv raug thiab qhov zoo, xws li cov laug cam, xuas tes ua, cov hniav nyiaj hniav kub lossis cov khoom sib dhos precision.Txawm li cas los xij, nws tsis haum rau kev luam tawm cov qauv loj.Yog tias cov qauv loj yuav tsum tau luam tawm, lawv yuav tsum tau disassembled rau luam ntawv.Txawm li cas los xij, nws yuav tsum tau nco ntsoov tias ob qho tib si translucent thiab pob tshab luam ntawv yuav tsum tau polished nyob rau theem tom ntej.Qhov twg polishing tsis tuaj yeem ncav cuag, lub pob tshab yuav ua rau me ntsis zuj zus.
Photosensitive resin khoom tsis tuaj yeem hais tau yooj yim txawm tias nws yog tshuaj lom lossis tsis muaj tshuaj lom.Toxicity yuav tsum tau tham nrog kev siv tshuaj.Feem ntau, tsis muaj teeb meem tom qab lub teeb kho li qub.Lub teeb curing resin yog matrix resin ntawm lub teeb curing txheej.Nws yog compounded nrog photoinitiator, nquag diluent thiab ntau yam additives los tsim lub teeb curing txheej.
Functional UV monomer yog ib hom acrylate monomer haum rau UV kho cov tshuaj tiv thaiv.HDDA muaj cov viscosity tsawg, muaj zog dilution zog, o cov nyhuv ntawm cov yas substrate, thiab tuaj yeem txhim kho thiab txhawb cov adhesion rau yas substrate.Nws muaj cov tshuaj tiv thaiv zoo, dej tsis kam thiab kub tsis kam, huab cua tsis zoo, nruab nrab cov tshuaj tiv thaiv ceev thiab yooj yooj yim.UV monomers yog siv dav hauv UV txheej, UV inks, UV nplaum thiab lwm yam.
UV monomer feem ntau yog ua los ntawm cov viscosity tsawg thiab muaj zog dilution muaj peev xwm;Zoo heev adhesion rau yas substrate;Cov tshuaj tiv thaiv zoo, dej tsis kam thiab kub tsis kam;Zoo heev huab cua tsis kam;Zoo yoog raws;Nruab nrab curing ceev;Zoo ntub dej thiab leveling.
UV monomer tuaj yeem kho tau tsuas yog thaum nws yog irradiated rau cov kua nplaum los ntawm lub teeb ultraviolet, uas yog, cov duab hluav taws xob hauv cov duab ntxoov ntxoo tsis muaj nplaum yuav raug khi nrog cov monomer thaum nws raug ultraviolet lub teeb.Raws li txoj cai, cov nplaum tsis muaj duab ntxoo yuav tsis kho yuav luag tas mus li yam tsis muaj qhov irradiation ntawm ultraviolet lub teeb qhov chaw.Ultraviolet rays los ntawm lub hnub ci ntuj thiab cov khoom siv hluav taws xob.Qhov muaj zog ntawm UV, qhov nrawm nrawm dua.Feem ntau, lub sijhawm kho yog li ntawm 10 txog 60 vib nas this.Rau lub hnub ci ntuj, lub teeb ci ultraviolet nyob rau hauv tshav ntuj yuav muaj zog dua, thiab qhov ceev ntawm kev kho yog sai dua.Txawm li cas los xij, thaum tsis muaj hnub ci zog, tsuas yog siv lub teeb ci ultraviolet xwb.
Muaj ntau ntau yam khoom siv hluav taws xob ultraviolet lub teeb, thiab lub zog sib txawv kuj tseem loj heev.Lub zog qis tuaj yeem ua rau me me li ob peb watts, thiab lub zog siab tuaj yeem ncav cuag kaum txhiab watts.Lub curing ceev ntawm shadowless nplaum ua los ntawm txawv manufacturers los yog txawv qauv yog txawv.Cov shadowless nplaum siv rau kev sib txuas tsuas yog kho tau los ntawm lub teeb irradiation.Yog li ntawd, cov shadowless adhesive siv rau kev sib txuas tsuas yog ob lub pob tshab khoom los yog ib qho ntawm lawv yuav tsum yog pob tshab, kom lub teeb ultraviolet tuaj yeem dhau los thiab irradiate cov kua nplaum;Siv UV shadowless nplaum rau ib qho ntawm qhov chaw, kaw ob lub dav hlau, thiab irradiate nrog lub teeb ci ultraviolet nrog qhov tsim nyog wavelength (feem ntau yog 365nm-400nm) thiab lub zog los yog lub teeb mercury siab rau illumination.Thaum irradiating, nws yog tsim nyog los irradiate los ntawm qhov chaw mus rau lub periphery, thiab paub meej tias lub teeb muaj tseeb nkag mus rau lub tsev cog khoom ib feem.
Post lub sij hawm: May-19-2022