Daim ntawv thov thiab cov yam ntxwv ntawm PET tshav kub sealing zaj duab xis

Ordinary PET yog crystalline polymer. Tom qab PET zaj duab xis yog stretched thiab taw qhia, nws yuav tsim ib tug loj degree ntawm crystallization. Yog hais tias nws yog kub-sealed, nws yuav shrink thiab deform, yog li cov PET zoo tib yam zaj duab xis tsis muaj cua sov-sealing zog.

Thaum PET zaj duab xis yog siv los ua cov khoom ntim, txhawm rau daws qhov teeb meem ntawm kev sib khi, cov txheej txheem ntawm kev sib xyaw BOPET zaj duab xis nrog PE zaj duab xis lossis CPP zaj duab xis feem ntau yog siv, uas txwv tsis pub siv BOPET zaj duab xis rau qee yam.

Txhawm rau daws qhov teeb meem ntawm kev sib khi thaum tshav kub kub, los ntawm kev hloov kho ntawm PET resin thiab siv A / B / C peb txheej txheej tuag, peb txheej co-extruded tshav kub-sealing PET zaj duab xis tau tsim. Lub tshav kub-sealing PET zaj duab xis Vim tias muaj cov cua sov-sealable txheej ntawm ib sab, nws tuaj yeem ncaj qha tshav kub-sealed, uas yooj yim heev rau siv. Thaum tshav kub kub-sealable PET zaj duab xis tuaj yeem siv dav hauv kev ntim khoom thiab daim npav tiv thaiv zaj duab xis ntawm ntau yam khoom.

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