Disadvantage Analysis ntawm PLA / PBAT Biodegradable Composite Films rau Mooncake Ntim
1.Limited barrier properties & shelf-Lub neej shortcoming: Cov pa oxygen, noo noo thiab lub teeb barrier zog ntawm nkauj xwb biodegradable films yog inferior rau cov aluminium-plated PET/CPP thiab KOPP/CPP films. Yog tsis muaj txheej thaiv ntxiv, nws tsuas yog tsim rau luv luv - txee- lub neej mooncakes nrog lub txee lub neej tsawg dua 30 hnub, tsis tuaj yeem ua tau raws li qhov yuav tsum tau ua ntev - txee- lub neej mooncakes (tshaj 6 lub hlis) thiab xa tawm mooncakes, thiab tej zaum yuav yooj yim ua rau roj tsiv teb tsaws, noo noo nqus thiab tsw qab.
2.Poor temperature resistance & limited adaptability: With a heat distortion temperature of approximately 60-70℃, it cannot withstand high-temperature sterilization (>80 degree) tom qab lub ncuav mog qab zib ntim los yog microwave cua sov. Tsis tas li ntawd, nws nyiam ua nkig nyob rau hauv qis - qhov kub thiab txias ib puag ncig, ua rau yooj yim ntug sealing cracking thiab zaj duab xis puas thaum lub sij hawm thauj mus los thiab cia nyob rau sab qaum teb Tuam Tshoj nyob rau hauv lub caij ntuj no.
3.High nqi & tsis tshua muaj nqi kev ua tau zoo: Nyob rau tib lub thickness thiab qauv, nws tus nqi yog 2-3 npaug ntawm zoo tib yam BOPP / CPP composite films, thiab cov nqi ntawm cov ntshiab aluminium foil biodegradable films yog ntau dua, uas ho nce tag nrho cov nqi ntawm mooncake ntim thiab ua rau nws tsis haum rau bulk mooncakes pheej yig.
4.Sstringent cia thiab daim ntawv thov yuav tsum tau: cov biodegradable zaj duab xis yog heev hygroscopic; Tsis siv cov yob zaj duab xis yuav tsum tau muab khaws cia hauv hermetically, txwv tsis pub lub tshav kub sealability thiab zaj duab xis lub zog yuav raug cuam tshuam. Ntxiv mus, tus nqi biodegradation tau cuam tshuam los ntawm ib puag ncig- yog tias lub ntim ncuav mog qab zib tsis tuaj yeem nkag mus rau hauv cov txheej txheem composting raws sijhawm, biodegradation efficiency yuav txo qis.
5.Imperfect recycling system: Nws yuav tsum tau muab cais cais cais (tsis tuaj yeem sib xyaw nrog cov yas zoo tib yam). Tam sim no, muaj ob peb offline composting thiab recycling outlets nyob rau hauv Tuam Tshoj; Yog tias cov neeg siv khoom pov tseg ntawm qhov xav tau, nws qhov txiaj ntsig biodegradation tsis tuaj yeem paub, yooj yim ua rau "kev tiv thaiv ib puag ncig cuav" qhov teeb meem.
