CPP zaj duab xis tiv thaiv, los yog cam khwb cia polypropylene tiv thaiv zaj duab xis, yog ib tug uas tsis yog - stretched, tsis yog - taw qhia polypropylene zaj duab xis uas tsim los ntawm ib tug yaj casting txheej txheem.
CPP tiv thaiv zaj duab xis nta siab pob tshab, kub tsis kam, tsim kua muag tsis kam, ib puag ncig tus phooj ywg thiab tsis muaj - toxicity, noo noo thiab av noo tiv thaiv, oxygen barrier zog, thiab roj kuj. Nws kuj muaj qee qhov kev tawv nqaij tsis muaj kev ywj pheej, tuaj yeem tiv taus qhov kub thiab txias ntawm 120℃-150 degree, muaj qhov muag muag ntawm kwv yees li 140 degree, thiab qhov ceev ntawm kwv yees li 0.92 g / cm³. Nws nthuav tawm lub zog tensile zoo thiab cuam tshuam tsis kam, tsis yooj yim tawg, thiab muaj cov tshuaj tiv thaiv corrosion zoo heev. Tsis tas li ntawd, nws boasts zoo pob tshab, siab gloss, zoo txhav, zoo noo noo barrier zog, zoo heev tshav kub tsis kam, thiab yog ib qho yooj yim rau cua sov foob.
Piv nrog rau lwm cov yeeb yaj kiab xws li LLDPE, LDPE, HDPE, PET, thiab PVC, CPP zaj duab xis muaj qhov zoo ntawm cov nqi thiab kev tsim khoom; nws muaj zog dua li PE zaj duab xis; thiab nws muab zoo heev noo noo thiab tsw barrier zog. Tsis zoo li BOPP (biaxially oriented polypropylene) zaj duab xis, CPP zaj duab xis yog tsis yog -taw qhia zaj duab xis, ua kom yooj yim rau cov txheej txheem tom ntej xws li luam ntawv thiab lamination.
Raws li cov khoom siv raw thiab kev ua haujlwm, CPP cov yeeb yaj kiab tiv thaiv tuaj yeem muab faib ua ntau hom, xws li homopolymer CPP thiab copolymer CPP; Raws li kev ua haujlwm, lawv tuaj yeem muab faib ua hom siab transparency, siab kub resistant hom, antistatic hom, tus kheej -adhesive hom, thiab lwm yam. Homopolymer CPP muaj siab rigidity thiab kub kuj, copolymer CPP txhim kho yooj thiab cuam tshuam tsis kam, thiab multilayer composite CPP tuaj yeem koom ua ke barrier, nplaum thiab lwm yam haujlwm.
