Cov ntaub ntawv ntim khoom sib xyaw

Raws li kev txhim kho ntawm kev lag luam ntim khoom, kev ntim khoom muaj

kuj tau tsim raws li ntawd. Txij li cov ntawv ntim yooj yim mus rau ib txheej yas yas ntim, tsim los rau kev siv dav dav ntawm cov khoom sib xyaw. Cov yeeb yaj kiab sib xyaw ua rau cov ntsiab lus ntim khoom muaj cov yam ntxwv ntawm kev ua kom noo noo, tsw qab, zoo nkauj, khaws cia, lub teeb, zam, nkag mus, ua kom lub txee ntev thiab lwm yam ntxwv, yog li peb tau txais kev txhim kho sai.

Cov ntaub ntawv sib xyaw ua ke yog ob lossis ntau yam khoom siv, los ntawm ib lossis ntau cov txheej txheem sib xyaw ua ke thiab sib xyaw ua ke, kom ua rau muaj qee yam haujlwm ntawm cov ntaub ntawv sib xyaw. Nws feem ntau tuaj yeem muab faib ua txheej hauv paus, txheej ua haujlwm thiab txheej kaw thermal. Qib hauv paus feem ntau ua lub luag haujlwm zoo nkauj, luam ntawv, tiv taus dej noo thiab lwm yam. Xws li BOPP, BOPET, BOPA, MT, KOP, KPET, thiab lwm yam, txheej ua haujlwm feem ntau thaiv thiab zam cov haujlwm teeb, xws li VMPET, AL, EVOH, PVDC; txheej kaw thermal muaj kev sib cuag ncaj qha nrog cov khoom ntim khoom, kev hloov pauv tau, kev tiv taus permeability, kev kaw thermal zoo, xws li LDPE, LLDPE, MLLDPE, CPP, VMCPP, EVA, EAA, E-MAA, EMA, EBA, thiab lwm yam.