Polypropylene los yog PP yog tus nqi qis thermoplastic ntawm siab clarity, siab gloss thiab zoo tensile zog.Nws muaj cov ntsiab lus melting ntau dua li PE, uas ua rau nws haum rau cov ntawv thov uas yuav tsum tau ua kom tsis muaj menyuam ntawm qhov kub thiab txias.Nws kuj muaj tsawg dua haze thiab siab dua gloss.Feem ntau, cov khoom cua sov ntawm PP tsis zoo li cov LDPE.LDPE kuj muaj lub zog tsim kua muag zoo dua thiab tsis tshua muaj kev kub ntxhov.
PP tuaj yeem ua metallized uas ua rau muaj kev txhim kho roj teeb meem rau cov ntawv thov uas cov khoom txee ntev yog qhov tseem ceeb.PP zaj duab xis zoo haum rau ntau yam kev lag luam, cov neeg siv khoom, thiab kev siv tsheb.
PP tuaj yeem rov ua dua tshiab thiab tuaj yeem rov ua dua tshiab rau hauv ntau lwm yam khoom siv rau ntau yam kev siv.Txawm li cas los xij, tsis zoo li daim ntawv thiab lwm yam khoom siv cellulose, PP tsis yog biodegradable.Nyob rau sab saum toj, PP pov tseg tsis tsim cov tshuaj lom lossis tsim kev puas tsuaj los ntawm cov khoom lag luam.
Ob hom tseem ceeb tshaj plaws yog cam khwb cia unoriented polypropylene (CPP) thiab biaxially oriented polypropylene (BOPP).Ob hom muaj gloss siab, tshwj xeeb optics, zoo los yog zoo heev thaum tshav kub kub-sealing kev ua tau zoo, zoo dua kub tsis kam tshaj PE, thiab zoo noo noo barrier zog.
Cam khwb cia Polypropylene zaj duab xis (CPP)
Cast unoriented Polypropylene (CPP) feem ntau pom cov ntawv thov tsawg dua li biaxially oriented polypropylene (BOPP).Txawm li cas los xij, CPP tau tsis tu ncua nce hauv av raws li qhov kev xaiv zoo tshaj plaws hauv ntau qhov kev ntim khoom yooj yim nrog rau cov ntawv thov tsis ntim khoom.Cov khoom ua yeeb yaj kiab tuaj yeem raug kho kom tau raws li cov ntim tshwj xeeb, kev ua tau zoo, thiab kev ua tiav.Feem ntau, CPP muaj cov kua muag ntau dua thiab cuam tshuam, kev ua haujlwm txias txias zoo dua thiab cov khoom siv hluav taws xob zoo dua li BOPP.
Biaxially Oriented Polypropylene Zaj duab xis (BOPP)
Biaxially oriented polypropylene los yog BOPP1 yog qhov tseem ceeb tshaj plaws polypropylene zaj duab xis.Nws yog ib qho kev xaiv zoo tshaj plaws rau cellophane, waxed ntawv, thiab txhuas ntawv ci.Txoj kev taw qhia ua kom lub zog tensile thiab nruj, txo qis elongation (nyuaj rau ncab), thiab txhim kho cov khoom kho qhov muag, thiab qee qhov txhim kho vapor barrier zog.Feem ntau, BOPP muaj zog tensile ntau dua, siab dua modulus (stiffness), qis elongation, zoo dua roj barrier, thiab qis qis dua CPP.
Daim ntawv thov
PP zaj duab xis yog siv rau ntau daim ntawv ntim khoom xws li luam yeeb, khoom qab zib, khoom noj txom ncauj thiab khoom noj.Nws kuj tseem tuaj yeem siv rau lub ntsws qhwv, daim kab xev, cov ntaub qhwv thiab cov ntaub qhwv tsis muaj menyuam siv hauv kev kho mob.Vim tias PP tsuas muaj qhov nruab nrab ntawm cov roj teeb meem, nws feem ntau yog coated nrog lwm cov polymers xws li PVDC los yog acrylic uas zoo heev txhim kho nws cov roj barrier zog.
Vim tias tsis muaj ntxhiab tsw, muaj tshuaj lom neeg tsis zoo thiab tsis muaj zog, ntau qib PP yog tsim rau cov ntawv ntim khoom raws li FDA cov cai.
Post lub sij hawm: Apr-07-2022