Kev qhia luv luv ntawm PETG blister khoom rau lub tshuab blister
Tso lus
PETG yog ib hom pob tshab yas luv luv, nws yog ib hom amorphous copolyester. Lub comonomer ntawm PETG yog 1, 4-cyclohexanedimethanol (CHDM), lub npe tag nrho yog polyethylene terephthalate. Ester -1, 4-cyclohexanedimethanol ester. Nws yog polycondensation khoom ntawm peb monomers, terephthalic acid (PTA), ethylene glycol (EG), thiab 1, 4-cyclohexanedimethanol (CHDM). Piv nrog PET, nws muaj ntau dua 1, 4-cyclohexane. Alkane dimethanol comonomer muaj ethylene glycol comonomer ntau dua li PCT. Yog li ntawd, kev ua tau zoo ntawm PETG yog qhov sib txawv ntawm PET thiab PCT, thiab nws muaj nws tus kheej tshwj xeeb. Txog tam sim no, tsuas muaj ob lub tuam txhab hauv ntiaj teb, Eastman los ntawm Tebchaws Meskas thiab SK los ntawm Kaus Lim Qab Teb. Cov neeg sawv cev tseem ceeb ntawm Eastman PETG thiab Kaus Lim Qab Teb SK PETG yog Shanghai Lianmo Chemical Co., Ltd., thiab lwm yam. Nrog rau qhov nce ntawm CHDM hauv cov copolymer, lub melting point txo, cov iav hloov kub nce, crystallinity txo, thiab thaum kawg. ib qho amorphous polymer yog tsim. Feem ntau, cov ntsiab lus ntawm CHDM hauv PETG yog 30 feem pua -40 feem pua. Nws muaj qhov zoo viscosity, pob tshab, xim, tshuaj lom neeg tsis kam, thiab tsis kam rau kev ntxhov siab. Ceev ceev thermoformed los yog extrusion tshuab molded. Viscosity zoo dua li acrylic (acrylic). PETG cov khoom yog pob tshab heev thiab muaj qhov zoo toughness, uas yog tsim rau kev tsim cov khoom tuab-walled pob tshab. PETG muaj kev ua haujlwm zoo thiab tsim kev ua haujlwm, thiab tuaj yeem tsim los ntawm txhua tus qauv raws li tus tsim lub hom phiaj. Tsoos extrusion, txhaj tshuaj molding, tshuab moulding thiab blister molding yuav siv tau. Cov txheej txheem molding tuaj yeem siv dav hauv kev ua lag luam ntawm cov ntaub ntawv, kev ua haujlwm siab shrink zaj duab xis, lub raj mis thiab cov khoom siv profile, thiab lwm yam. Tib lub sijhawm, nws cov kev ua haujlwm thib ob yog qhov zoo heev, thiab nws tuaj yeem ua tau raws li kev siv tshuab thiab hloov kho.
