High barrier ntim cov ntaub ntawv tau tsim sai heev thiab dav siv hauv kev lag luam ntim khoom tshwj xeeb hauv kev lag luam ntim khoom noj.Nws plays lub luag hauj lwm nyob rau hauv cov zaub mov zoo preservation, freshness preservation, tsw preservation thiab txee lub neej ncua.Muaj ntau yam thev naus laus zis los khaws cov zaub mov, xws li lub tshuab nqus tsev ntim, ntim cov pa hloov pauv, ntim deoxidizer ntim, ntim zaub mov kom qhuav, aseptic filling ntim, ua noj ntim ntim, kua thermal filling ntim thiab lwm yam.Nyob rau hauv ntau yam ntawm cov technologies no ntim, zoo barrier yas ntim cov ntaub ntawv yuav tsum tau siv.
Cov ntaub ntawv uas muaj ntau tshaj qhov barrier zaj duab xis yog raws li nram no:
1. Cov khoom siv PVDC (Polyvinylidene Chloride)
Polyvinylidene chloride (PVDC) resin, feem ntau siv los ua cov khoom sib xyaw lossis cov khoom siv monomer thiab co-extruded zaj duab xis, yog cov khoom siv ntim khoom siv siab tshaj plaws.Kev siv PVDC coated zaj duab xis yog qhov tshwj xeeb loj.PVDC coated zaj duab xis yog siv polypropylene (OPP), polyethylene terephthalate (PET) ua cov khoom siv hauv paus.Vim lub siab softening kub ntawm ntshiab PVDC, lub solubility ntawm PVDC yog nyob ze rau nws decomposition kub, thiab miscibility nrog cov yas yas yog tsis zoo, lub cua sov molding yog ib qho nyuaj thiab nyuaj rau siv ncaj qha.Kev siv tiag tiag ntawm PVDC zaj duab xis feem ntau yog copolymer ntawm vinylidene chloride (VDC) thiab vinyl chloride (VC), nrog rau acrylic methylene (MA) copolymerization ua los ntawm cov yeeb yaj kiab tshwj xeeb zoo.
2. Cov khoom ntim nylon
Nylon ntim cov ntaub ntawv ua ntej - ncaj siv "nylon 6".Tab sis "nylon 6" huab cua nruj tsis zoo tagnrho.Ib nylon (MXD6) ua los ntawm polycondensation ntawm m-dimethylamine thiab adipic acid yog 10 lub sij hawm ntau airtight tshaj "nylon 6", thaum kuj muaj zoo pob tshab thiab puncture kuj.Feem ntau yog siv rau cov khoom ntim ntim cov yeeb yaj kiab siab rau cov khoom noj khoom haus yooj yim ntim khoom.Nws kuj tau pom zoo los ntawm FDA rau kev nyiam huv ntawm zaub mov.Nws qhov loj tshaj feature raws li ib tug zaj duab xis yog hais tias lub barrier tsis poob nrog qhov nce ntawm cov av noo.Hauv Tebchaws Europe, MXD6 nylon tau dav siv los ua lwm txoj hauv kev rau PVDC cov yeeb yaj kiab vim muaj teeb meem tiv thaiv ib puag ncig.
3. Cov ntaub ntawv EVOH
EVOH yog cov khoom siv dav siv ntau tshaj plaws.
Cov yeeb yaj kiab hom ntawm cov khoom siv no ntxiv rau hom tsis muaj tensile, muaj ob txoj kev tensile hom, aluminium evaporation hom, nplaum txheej thiab lwm yam.Ob txoj kev ncab thiab tshav kub-resistant khoom rau aseptic ntim.
4. Inorganic Oxide Coated Zaj duab xis
PVDC, uas yog dav siv los ua cov khoom ntim khoom hnyav, muaj kev nyiam los hloov lwm cov khoom ntim vim tias nws cov khib nyiab yuav tsim HCl thaum nws hlawv.Piv txwv li, lub npe hu ua coated zaj duab xis ua tom qab txheej ntawm SiOX (silicon oxide) ntawm cov yeeb yaj kiab ntawm lwm cov substrates tau raug them rau, ntxiv rau cov silicon oxide txheej zaj duab xis, muaj alumina evaporation zaj duab xis.Qhov kev ua tau zoo ntawm cov roj-nruj ntawm cov txheej yog tib yam li ntawm silicon oxide txheej tau los ntawm tib txoj kev.
Nyob rau hauv xyoo tas los no, multilayer composite, blending, copolymerization thiab evaporation technologies tau tsim sai heev.Cov ntaub ntawv pov thawj siab xws li vinyl vinyl glycol copolymer (EVOH), polyvinylidene chloride (PVDC), polyamide (PA), polyethylene terephthalate (PET) multilayer composite cov ntaub ntawv thiab silicon oxide compound evaporation zaj duab xis tau tsim ntxiv, tshwj xeeb tshaj yog cov khoom hauv qab no ntau dua. eye-catching: MXD6 polyamide ntim khoom;Polyethylene glycol naphthalate (PEN);Silicon oxide evaporation zaj duab xis, thiab lwm yam.
Post lub sij hawm: Mar-09-2023