Lub npe tag nrho ntawm PETG yog Polyethylene Terephthalate Glycol / hloov kho, thiab nws lub npe Suav yog Polyethylene terephthalate glycol / copolyester, uas yog cov thermoplastic pob tshab nrog lub siab transparency, zoo tshuaj tiv thaiv thiab cuam tshuam. Nov yog saib ze dua ntawm PETG:
PETG yog dab tsi?
PETG yog pob tshab, amorphous copolyester tsim los ntawm teresterification ntawm ethylene glycol, terephthalic acid thiab malonic acid, thiab yog cov khoom siv thermoplastic polyester.
Qhov tseeb, PETG yog cov khoom siv tau los ntawm kev hloov ib feem ntawm ethylene glycol nrog lwm cov diols (copolymers) hauv cov txheej txheem PET synthesis, thiab yog ib qho kev txhim kho ntawm PET yas, nrog rau cov yam ntxwv ntawm pob tshab, siab zog thiab siab toughness.
Raws li txoj cai, lub caj qaum ntawm PETG muaj kev sib txuas sib txuas ntawm Terephthalic Acid (TPA) units thiab ethylene glycol thiab CHDM units. Kev taw qhia ntawm CHDM txo cov crystallinity ntawm cov khoom, ua rau PETG yooj yim rau txheej txheem dua li PET zoo tib yam, thaum tuav zoo transparency thiab luster.
Qhov kev tso cai ntau yam ntawm PET txhaj tshuaj molding txheej txheem yog qhov dav dua li PET, thiab cov ntaub ntawv ntau yog phaj, yeeb nkab thiab zaj duab xis, uas feem ntau daim ntawv yog phaj.
Dab tsi yog cov khoom siv ntawm PETG?
1.High pob tshab:PETG muaj ze li ntawm lub pob tshab ntawm iav, thaum sib dua thiab tsis tshua tawg dua iav. PETG muaj cov pob tshab zoo heev thiab lub teeb kis tau tus mob, nrog lub teeb xa mus txog li 90%. Yog li ntawd, PETG panels tuaj yeem ua rau hauv lub ru tsev pob tshab, muab faib, thiab lwm yam, kom coj tau lub teeb ntuj ntau dua thiab nruab hnub rau sab hauv. Nws kuj yog siv dav hauv pob tshab yas panels, tshuaj pleev ib ce thiab tshuaj bottling, decorations thiab artworks.
2.Chemical tsis kam: PETG tuaj yeem tiv thaiv kev yaig ntawm ntau yam tshuaj, suav nrog qee cov tshuaj ntxuav thiab roj roj.
3.Kev cuam tshuam zoo: Txawm tias nyob rau hauv qhov kub thiab txias ib puag ncig, PETG tuaj yeem tswj tau qhov hnyav thiab tsis yooj yim tawg. Nws muaj kev ua haujlwm zoo thiab kev cuam tshuam, thiab nws lub zog cuam tshuam yog ntau tshaj 30 npaug ntawm PLA zoo tib yam. Yog li ntawd, nws tuaj yeem nyob twj ywm rau lub sijhawm ntev hauv lub zog siab thiab qhov chaw siab, tshwj xeeb tshaj yog tsim rau kev tsim cov phab ntsa tuab pob tshab, kev ua haujlwm zoo heev, thiab tuaj yeem tsim nyob rau hauv txhua yam duab raws li tus tsim lub hom phiaj. Qhov no kuj ua rau PETG yog ib qho khoom siv zoo tshaj plaws rau kev tsim vaj tsev zoo nkauj xws li phab ntsa panels, ceilings, partitions, qhov rooj, qhov rais, thiab lwm yam.
4. Hluav taws xob ua haujlwm:PETG muaj qhov ntsuas hluav taws kub siab, muaj peev xwm ncav cuag B1 lossis siab dua qhov ntsuas hluav taws. Yog li ntawd, hauv cov tsev lag luam, cov tsev nyob, cov tsev kho mob, cov chaw pej xeem thiab lwm qhov chaw, PETG cov vaj huam sib luag zoo nkauj kuj tau siv dav.
5.Thermal stability: Nrog zoo thermal stability, haum rau thermoforming ua.
6. Yooj yim rau txheej txheem: PETG muaj cov txheej txheem zoo thiab tuaj yeem ua tiav los ntawm kev txhaj tshuaj molding, tshuab moulding, extrusion thiab lwm yam kev ua, thiab tseem tuaj yeem ua raws li cov neeg siv khoom xav tau los hloov cov khoom sib txawv.
7.Green thiab tauj dua tshiab:PETG tuaj yeem rov siv dua thiab rov siv dua, pab txo qhov hnyav ntawm ib puag ncig. Cov khoom siv PETG yog cov khoom siv rov ua dua tshiab uas txo cov pa phem ib puag ncig thiab pov tseg cov peev txheej thaum rov ua dua thiab rov ua dua tshiab. Nyob rau tib lub sijhawm, cov khoom siv PETG yuav tsis tso cov khoom tsis zoo thaum siv, thiab nws yuav tsis deformed los yog tsim cov pa roj carbon monoxide vim tias muaj cua sov, yog li nws kuj tseem tuaj yeem hlawv yam tsis muaj kev txhawj xeeb txog kev tsim cov khoom tsis zoo.
8. Kev lag luam: PETG cov ntaub ntawv muaj cov nqi tsim khoom qis thiab yooj yim rau kev ua thiab tsim, ua rau lawv siv nyiaj txiag thiab ruaj khov hauv kev lag luam kev lag luam. Hloov cov tsoos PVC thiab polycarbonate (PC) thiab lwm yam ntaub ntawv, nws tau dhau los ua ib qho ntawm cov khoom siv hauv tsev nrov tshaj plaws ntawm kev ua lag luam.
9.Plasticity thiab yooj: Cov khoom siv PETG muaj cov yas zoo heev thiab yooj yim, thiab muaj qee yam cim xeeb zoo li tus yam ntxwv, tuaj yeem tsim ntau hom khoom, haum rau ntau yam khoom nrog cov qauv tsim thiab cov qauv tsim. Tsis tas li ntawd, PETG cov ntaub ntawv tseem tuaj yeem dyed, luam tawm, coated thiab lwm yam kev ua kom tau raws li qhov xav tau ntau ntxiv.
Dab tsi yog qhov tsis zoo ntawm cov ntaub ntawv PETG?
Thaum PETG muaj ntau qhov zoo, nws kuj muaj qee qhov teeb meem. Piv txwv li, lub hardness ntawm cov khoom nws tus kheej tsis txaus thiab nws yog ib qho yooj yim mus khawb nyob rau hauv lub neej txhua hnub, uas txhais tau hais tias cov khoom no yuav tsum tau xyuam xim rau kev tu. Tsis tas li ntawd, cov ntaub ntawv PETG tsis muaj zog txaus los tiv thaiv cov khoom hnyav, yog li xav tau ceev faj thaum siv lawv.
