Kev ua tau zoo sib txawv ntawm PET lub raj mis yas

Pet resin IV. Tus nqi

Nyob rau tib lub sijhawm, qhov pom tseeb viscosity ntawm lub raj mis qibPETyaj yog siab dua li ntawm fiber ntau qib PET, thiab qhov hloov pauv amplitude ntawm pom meej viscosity yog me dua li ntawm fiber ntau qib PET. Raws li qhov kub thiab txias, qhov elasticity ntawm lub raj mis qib PET yaj yog ntau dua li ntawm fiber ntau qib PET, cov qauv ntawm cov yaj yog siab dua li ntawm fiber ntau qib PET, thiab cov spinnability tsis zoo.

Feem ntau hais lus, cov hlais nrog cov viscosity siab sib haum rau cov fwj uas muaj zog dua, uas tuaj yeem tiv taus siab thiab cuam tshuam; Slices uas tsis tshua muaj viscosity sib haum rau lub raj mis qis zog, nrog rau qis qis thiab cuam tshuam tsis kam. Vim tias qhov kub ntawm cov nplaum nplaum thaum ua tiav cov viscosity PET slices, qhov viscosity poob kuj yuav nce ntxiv. Yog li ntawd, lub viscosity ntawm lub raj mis qib PET slices tsis tas yuav zoo dua yog tias nws ua tau raws li lub zog ntawm cov khoom.

 

Lub viscosity ntawm PET hlais yog nyob ib ncig ntawm 0.70ml/g, uas tuaj yeem ncav cuag qib ntawm cov neeg ua haujlwm ntawm cov ntaub pua plag. Qhov tseem ceeb tshaj plaws yog kom txo qis qhov kev hloov pauv ntawm cov viscosity ntawm sab hauv. Kev hloov pauv loj hauv viscosity tuaj yeem yooj yim ua rau tsis zoo molding, drifting, merging, thiab tsis xws luag, cuam tshuam rau spinnability. Tsis tas li ntawd, kev hloov pauv loj hauv viscosity ntawm cov roj tsis muaj fiber ntau tuaj yeem ua rau muaj zog fiber ntau hloov pauv.

Cov txheej txheem ntau lawm ntawm lub raj mis qib thiab cov qib fiber ntau yog qhov zoo ib yam, tab sis txhawm rau ua kom tau raws li qee qhov kev xav tau ntawm lub raj mis qib slices, ib qho thib peb monomer, isophthalic acid (IPA), thiab qee cov khoom ntxiv. Qhov sib ntxiv ntawm peb lub monomer txo qhov melting point ntawm cov hlais thiab crystallization tus nqi ntawm cov yaj, txhim kho lub pob tshab ntawm lub raj mis, thiab qhov nruab nrab tus txheeb ze molecular hnyav ntawm lub raj mis qib PET slices feem ntau tshaj 30000, thaum fiber ntau qib PET nyob ib ncig ntawm { {1}}.

 

Rau txhua txhua 1% nce nyob rau hauv cov ntsiab lus ntawm isophthalic acid, lub melting point ntawm lub slices yuav txo los ntawm 3-3.5 degree ., cov nyhuv ntawm isophthalic acid nyob rau hauv lub intrinsic zoo ntawm slices yog tsuas yog hloov lawv crystallization zog. Cov kev xav tau rau kev ua haujlwm crystallization ntawm lub raj mis sib txawv ntawm cov khoom sib txawv, yog li cov ntsiab lus ntawm terephthalic acid tsis tuaj yeem ua dav dav. Piv txwv li, qhov hnyav thiab phab ntsa tuab ntawm cov roj siv tau lub raj mis preforms (feem ntau yog nyob ib ncig ntawm 110 grams), nrog rau qhov txias txias ntawm cov preforms, yuav tsum tau qis qis crystallization ntawm lub raj mis hlais, uas txhais tau hais tias cov ntsiab lus ntawm isophthalic acid yuav tsum yog. siab npaum li qhov ua tau; Lub raj mis ntim dej kub yuav tsum tiv taus 90 degree.

Txog Peb

 

Luoyang Dema Ntshuam & Export Co., Ltd. aims muab cov khoom zoo, nqi-zoo rau lub ntiaj teb no factories, yas khoom manufacturers, thiab cov khoom distributors. Luoyang Dema Ntshuam & Export Co., Ltd. muab qhov zoo tshaj plaws PP, PE, PVC, PET, EVA, ABS, thiab POM cov ntaub ntawv daws teeb meem rau cov khoom lag luam yas, wholesalers, distributors, distributors, Hoobkas tswv, kev cob qhia, thiab lwm yam.

Yog tias koj tab tom nrhiav cov ntaub ntawv yas dav dav, thov koj xav tias dawb tau txais cov nqi tshiab thiab cov lus hais los ntawm Luoyang Dema Ntshuam & Export Co., Ltd. Pab pawg muag khoom yuav teb rau hauv 48 teev.