O mea faʻapipiʻi pa puipui maualuga ua vave ona atiaʻe ma faʻaaogaina lautele i fale gaosi oloa aemaise lava ile fale gaosi meaʻai.E iai sona sao i le fa'asaoina o le lelei o mea'ai, fa'asaoina o mea'ai fou, fa'asaoina o tofo ma fa'alautele le ola.O loʻo i ai tekinolosi eseese mo le faʻasaoina o meaʻai, e pei o le faʻapipiʻiina o meaʻai, afifiina o le kesi, faʻamaufaʻailoga deoxidizer afifi, faʻamago meaʻai meaʻai, faʻapipiʻi aseptic faʻatumu, faʻapipiʻi kuka, faʻapipiʻi faʻamalama vai ma isi.I le tele o nei faiga fa'apipi'i, e tatau ona fa'aogaina mea fa'apipi'i palasitika lelei.
O mea e masani ona masani ai ata pa'u maualuga e fa'apea:
1. Mea PVDC (Polyvinylidene Chloride)
Polyvinylidene chloride (PVDC) resin, e masani ona faʻaaogaina e pei o mea tuʻufaʻatasia poʻo mea monomer ma ata faʻapipiʻi faʻatasi, o le mea e sili ona faʻaogaina o mea faʻapipiʻi pa puipui maualuga.O le faʻaogaina o le PVDC faʻapipiʻiina ata e faʻapitoa tele.PVDC faʻapipiʻiina ata tifaga o le faʻaaogaina o le polypropylene (OPP), polyethylene terephthalate (PET) e fai ma mea faʻavae.Ona o le maualuga o le mafanafana o le PVDC mama, o le solubility o le PVDC e latalata i lona vevela vevela, ma o le miscibility ma le plasticizer lautele e le lelei, o le faʻamafanafanaina e faigata ma faigata ona faʻaoga saʻo.O le faʻaaogaina moni o le ata PVDC e tele lava o le copolymer o le vinylidene chloride (VDC) ma le vinyl chloride (VC), faʻapea foʻi ma le acrylic methylene (MA) copolymerization e faʻapipiʻiina i le ata sili ona lelei.
2. Mea Fa'apipi'i Nylon
Mea fa'apipi'i nailon muamua - fa'aoga sa'o "nylon 6".Ae o le "nylon 6" ea e le lelei.O se nylon (MXD6) e faia mai le polycondensation o le m-dimethylamine ma le adipic acid e 10 taimi e sili atu le malulu nai lo le "nylon 6", ae o loʻo iai foʻi le manino lelei ma le tuʻuina atu.Fa'aaogaina mo le maualuga o pa puipui ata tifaga mo le maualuga o pa puipui mana'omia o mea'ai fa'apipi'i fetuutuunai.E fa'amaonia foi e le FDA mo le tumama o mea'ai.O lona uiga pito sili ona taua e pei o se ata tifaga e le pa'u le pa i le si'itia o le susu.I Europa, MXD6 nylon o loʻo faʻaaogaina lautele e fai ma sui i ata PVDC ona o faʻafitauli iloga o le puipuiga o le siosiomaga.
3. Mea EVOH
O le EVOH o le mea e sili ona fa'aogaina fa'aoga maualuga.
O ituaiga ata tifaga o lenei mea e faʻaopoopo i le ituaiga e le faʻamalosi, o loʻo i ai le lua auala, ituaiga alumini alumini, faʻapipiʻi faʻapipiʻi ma isi.E lua auala fa'aloloa ma fa'asa'o oloa mo le afifiina aseptic.
4. Ata Ata ua ufiufi Oxide Inorganic
O le PVDC, o lo'o fa'aaogaina lautele e avea o se mea fa'apipi'i maualuga, e iai le tulaga e sui ai i isi mea fa'apipi'i ona o ana otaota e maua mai ai le HCl pe a mu.Mo se faʻataʻitaʻiga, o le mea ua taʻua o le ata faʻapipiʻiina na faia ina ua maeʻa le faʻapipiʻiina o le SiOX (silicon oxide) i luga o le ata o isi substrates ua gauai atu i ai, i le faʻaopoopoga i le ata faʻapipiʻiina o le silicon oxide, o loʻo i ai le alumina evaporation film.O le faʻaogaina o le kesi o le faʻapipiʻi e tutusa ma le faʻaogaina o le silicon oxide coating e maua i le auala lava e tasi.
I tausaga talu ai nei, multilayer composite, faʻafefiloi, copolymerization ma faʻaogaina tekinolosi ua vave ona atiaʻe.O mea faʻapipiʻi pa puipui maualuga e pei o le vinyl vinyl glycol copolymer (EVOH), polyvinylidene chloride (PVDC), polyamide (PA), polyethylene terephthalate (PET) multilayer mea tuʻufaʻatasia ma le silicon oxide compound evaporation film ua faʻalauteleina, aemaise o oloa nei e sili atu. mata-pu'e: MXD6 polyamide mea fa'apipi'i;Polyethylene glycol naphthalate (PEN);Silicon oxide evaporation film, etc.
Taimi meli: Mati-09-2023