qhia txog qhov xwm txheej tam sim no thiab kev txhim kho yav tom ntej ntawm kev lag luam thoob ntiaj teb thiab Tuam Tshoj petg membrane

PETG txhais li cas
PETG, lus Askiv lub npe Poly (ethylene terephthalateco-1,4-cylclohexylenedimethylene terephthalate) Nws yog pob tshab thiab amorphous copolyester. Lub comonomer ntawm PETG yog 1,4-cyclohexanedimethanol (CHDM), uas yog hu ua polyethylene terephthalate-1,4-cyclohexanedimethylene. Nws yog cov khoom ntawm ester pauv polycondensation ntawm terephthalic acid (PTA), ethylene glycol (EG) thiab 1,4-cyclohexanedimethanol (CHDM). Piv nrog PET, nws muaj ntau dua 1,4-cyclohexanedimethanol comonomer thiab ntau ethylene glycol comonomer dua li PCT. Yog li ntawd, kev ua tau zoo ntawm PETG yog qhov txawv ntawm PET thiab PCT.
PETG daim ntawv muaj qhov toughness zoo thiab muaj zog ua haujlwm siab. Nws qhov cuam tshuam lub zog yog 3 ~ 10 npaug ntawm kev hloov pauv polyacrylate, thiab muaj ntau yam kev ua haujlwm, siab txhua yam muaj zog thiab yooj yim heev. Piv nrog PVC, PETG daim ntawv muaj siab transparency, zoo luster, yooj yim luam ntawv thiab ib puag ncig zoo.
PETG yog amorphous copolyester. Hauv nws cov txheej txheem tsim khoom, qee qhov nyiaj ntawm ethylene glycol yog dimethanol (CHDM) tuaj yeem tiv thaiv crystallization, yog li txhim kho kev ua haujlwm thiab pob tshab. Nws cov khoom yog pob tshab heev thiab muaj kev cuam tshuam zoo heev, uas yog tshwj xeeb tshaj yog tsim rau kev tsim cov khoom siv pob tshab tuab. Nws kev ua thiab molding kev ua tau zoo heev. Nws tuaj yeem tsim txhua yam duab raws li tus tsim qauv lub hom phiaj. Nws tuaj yeem siv cov txheej txheem molding ib txwm muaj xws li extrusion, txhaj tshuaj molding, tshuab moulding, thiab blistering. Nws tuaj yeem siv dav hauv daim hlau, nplooj ntawv, cov yeeb yaj kiab ua haujlwm siab, lub raj mis, cov ntaub ntawv profiled thiab lwm yam lag luam. Nyob rau tib lub sijhawm, nws qhov kev ua haujlwm thib ob yog qhov zoo heev, Nws tuaj yeem hloov kho los ntawm cov pa machining.
Txog tam sim no, tsuas yog ob lub tuam txhab hauv ntiaj teb, Eastman ntawm Tebchaws Meskas thiab SK ntawm Kaus Lim Qab Teb, muaj cov thev naus laus zis tseem ceeb, Eastman PETG thiab SK ntawm Kaus Lim Qab Teb Cov neeg sawv cev tseem ceeb ntawm PETG thiab lwm yam khoom suav nrog Shanghai Lianmo Chemical Co., Ltd. Nrog rau qhov nce ntawm CHDM nyob rau hauv lub copolymer, lub melting point poob, lub iav hloov kub nce, thiab crystallinity poob, thaum kawg tsim ib amorphous polymer. Feem ntau, cov ntsiab lus ntawm CHDM hauv PETG yog 30% - 40%. Nws muaj viscosity zoo, pob tshab, xim, tshuaj lom neeg tsis kam thiab kev ntxhov siab ua kom tawv nqaij. Nws tuaj yeem ua tau sai sai thermoformed los yog extruded thiab tshuab. Cov viscosity zoo dua li acrylic acid (acrylic).
PETG cov khoom yog cov pob tshab thiab muaj qhov zoo toughness, uas yog tsim rau kev tsim cov phab ntsa tuab pob tshab. PETG muaj kev ua haujlwm zoo thiab molding kev ua tau zoo, thiab tuaj yeem tsim nyob rau hauv txhua yam duab raws li tus tsim lub hom phiaj. Nws tuaj yeem siv cov txheej txheem molding ib txwm muaj xws li extrusion, txhaj tshuaj molding, tshuab moulding thiab blistering, thiab tuaj yeem siv dav hauv daim hlau, nplooj ntawv, cov yeeb yaj kiab ua haujlwm siab, lub raj mis thiab cov ntaub ntawv profiled, thiab lwm yam kev lag luam. Nyob rau tib lub sijhawm, nws cov kev ua haujlwm theem nrab yog qhov zoo heev, Nws kuj tuaj yeem siv rau cov pa machining.
PETG daim ntawv yog ib qho yooj yim los tsim cov khoom lag luam nrog cov duab thiab cov duab loj loj. Ntxiv mus, tsis zoo li PC board thiab cuam tshuam hloov acrylic, hom board tsis tas yuav tsum tau qhuav ua ntej kub sib sau. Piv nrog PC board los yog acrylic, nws muaj lub voj voog luv luv, qis dua thiab muaj txiaj ntsig ntau dua. PETG daim hlau tuaj yeem saws, tuag txiav, drilled, punched, sheared, riveted, milled thiab txias khoov yam tsis muaj kev tawg. Kev khawb me ntsis ntawm qhov chaw tuaj yeem raug tshem tawm nrog rab phom kub cua. Solvent bonding kuj yog cov txheej txheem niaj hnub. Nws yog ib qho yooj yim rau txheej txheem ntau dua li acrylic, cuam tshuam resistant hloov acrylic lossis PC board, thiab tuaj yeem ua tiav los ntawm flocking, electroplating, hluav taws xob zoo li qub, thiab lwm yam.
Piv nrog rau cov khoom txawv teb chaws nrog cov npe ua tiav, Suav lag luam tseem muaj ntau yam ua rau kev txhim kho catalyst, polymerization tej yam kev mob optimization, raw cov ntaub ntawv rov qab txoj kev optimization, cov khoom ua tau zoo optimization, formula development, etc., thiab cia siab tias ntau lub lag luam tuaj yeem koom nrog. daim teb no nrog rau qhov chaw loj loj los ua kev lag luam thiab txhawb kev lag luam kev vam meej. PETG copolyester muaj kev loj hlob dav dav hauv cov khoom noj, ntim tshuaj pleev ib ce, tshuaj thiab kev noj qab haus huv thiab lwm yam. Nws yog lub sijhawm los tsim PETG copolyester kev lag luam hauv Suav teb.
Nyob rau hauv xyoo tas los no, qee qhov kev lag luam hauv tsev tau paub txog kev lag luam loj ntawm PETG los ntawm kev tshawb fawb tshawb fawb thiab thev naus laus zis mus ntev.
Kev tsom xam thiab kev kwv yees ntawm Tuam Tshoj PETG kev lag luam ntshuam
Nrog rau kev nthuav dav txuas ntxiv ntawm qhov kev thov ntawm Tuam Tshoj txoj kev lag luam PETG, kev lag luam ntshuam ntawm Tuam Tshoj txoj kev lag luam PETG yuav nce ntxiv rau yav tom ntej. Txawm li cas los xij, vim qhov nce ntawm kev hloov pauv hauv tsev, kev lag luam kev sib tw yuav nce ntxiv, thiab nws xav tias tus nqi ntawm kev lag luam yuav maj mam poob rau yav tom ntej.