Koj paub dab tsi txog qhov nro ntawm yas zaj duab xis?

Sep 21, 2023

Tso lus

Yuav ua li cas kuaj qhov nro ntawm yas zaj duab xis? Dab tsi yog qhov kev txwv nruj ntawm cov yeeb yaj kiab yas? Qhov nro ntawm cov yas zaj duab xis nyob ntawm qhov chaw tsis muaj zog ntawm cov yas zaj duab xis, thiab lub zog dawb ntawm cov khoom siv yas ua liaj ua teb nyob ntawm cov qauv molecular ntawm cov khoom siv zaj duab xis nws tus kheej. Feem ntau cov yas zaj duab xis xws li polyolefin films (LDPE, HDPE, LLDPE, PP) yog non-polar polymers, nrog me me nto dawb zog thiab tsis tshua muaj deg ntub nro, feem ntau txog 30 dyne / cm. Txoj kev xav, yog tias qhov nro ntawm qhov khoom tsawg dua 33 dyne / cm, cov inks zoo tib yam lossis cov nplaum tsis tuaj yeem ua kom ruaj khov, yog li lawv yuav tsum tau kho qhov chaw. Polyesters (PET, PBT, PEN, PETG) yog cov polar polymers uas muaj lub zog tsis muaj zog thiab qhov ntom ntom ntub dej ntau dua 40 dyne / cm. Txawm li cas los xij, rau kev kub ceev xim luam ntawv lossis txhawm rau ua kom cov adhesion ntawm lub tshuab nqus tsev aluminized thiab nto ntawm BOPET zaj duab xis, BOPET zaj duab xis kuj yuav tsum tau kho qhov chaw los txhim kho nws qhov chaw ntub dej.