Kua tere te whakawhanaketanga o nga rauemi whakakao arai teitei me te whakamahi whanui i roto i te umanga whakangao, ina koa ki te umanga whakangao kai.Ka whai waahi ki te pupuri i te kounga kai, te tiaki hou, te pupuri reka me te roanga o te oranga.He maha nga momo hangarau mo te tiaki kai, penei i te kapi korehau, te kete neke hau, te hiri o te kete deoxidizer, te whakamaroke kai whakamaroke, te aseptiki whakakī whakakī, te tunu tunu kai, te waiariki whakakī whakakī waiariki me te aha atu.I roto i te maha o enei hangarau whakakakahu, me whakamahi nga taputapu whakakakahu kirihou pai.
Ko nga rauemi kiriata arai teitei e whai ake nei:
1. Rauemi PVDC (Polyvinylidene Chloride)
Ko te kapia Polyvinylidene chloride (PVDC), he mea whakahiato, he mea monomer ranei me te kiriata taapiri-tahi, ko te nuinga o nga mea e whakamahia ana hei whakakai arai teitei.Ko te whakamahinga o te kiriata paninga PVDC he tino nui.PVDC pani kiriata ko te whakamahi o te polypropylene (OPP), polyethylene terephthalate (PET) rite te rauemi turanga.Na te nui o te whakamahana o te PVDC parakore, he tata te whakarewatanga o te PVDC ki tona pāmahana pirau, a, he kino te koretake me te plasticizer whanui, he uaua te hanga whakawera me te uaua ki te tono tika.Ko te tino whakamahinga o te kiriata PVDC te nuinga o te kape o te vinylidene chloride (VDC) me te vinyl chloride (VC), me te methylene kiriaku (MA) copolymerization i hangaia ki te kiriata arai tino pai.
2. Nylon Packaging Materials
Ko nga taonga taapinga nylon i mua - whakamahia tika "nylon 6".Engari ko te "nylon 6" kaore i te pai.Ko te nylon (MXD6) i hangaia mai i te polycondensation o te m-dimethylamine me te waikawa adipic he 10 nga wa nui atu te hau atu i te "nylon 6", i te mea he pai te maarama me te aukati i te wero.Te nuinga whakamahia mo te kiriata takai arai teitei mo nga whakaritenga arai teitei o te kete kai ngawari.Ka whakaaetia ano e te FDA mo te akuaku kai.Ko tana ahuatanga nui hei kiriata ko te kore e taka te arai i te pikinga o te makuku.I Uropi, ka whakamahia te nylon MXD6 hei rereke ki nga kiriata PVDC na nga take tiaki taiao rongonui.
3. Rauemi EVOH
Ko EVOH te rauemi arai teitei e whakamahia nuitia ana.
Ko nga momo kiriata o tenei rauemi i tua atu i te momo kore-taapiri, he rua-ara te ahua o te waahi, te momo whakaetonga konumohe, te momo whakakikorua whakapiri me etahi atu.E rua-ara totoro me te wera - hua atete mo te takai aseptic.
4. Kiriata Whakakikoruatia Oxide Inorganic
Ko te PVDC, e whakamahia whanuitia ana hei taonga whakangao arai teitei, ka whakakapihia e etahi atu taonga whakangao na te mea ka puta te HCl i tana para ina tahuna.Hei tauira, ko te mea e kiia ana ko te kiriata whakakikorua i hangaia i muri i te paninga o te SiOX (silicon oxide) i runga i te kiriata o etahi atu taputapu kua arohia, i tua atu i te kiriata whakakikorua o te kirikiri, kei reira he kiriata whakaetonga alumina.He rite tonu te mahi a te hau-kaha o te paninga ki te whakakikoruatanga o te waikura silicon oxide e whiwhi ana i taua tikanga.
I roto i nga tau tata nei, kua tere te tipu o nga hangarau hiato multilayer, whakakotahitanga, copolymerization me te whakaetonga.Ko nga taonga whakahiato arai teitei penei i te vinyl vinyl glycol copolymer (EVOH), polyvinylidene chloride (PVDC), polyamide (PA), polyethylene terephthalate (PET) nga rauemi hiato multilayer me te kiriata whakaetonga pūhui waikura silicon oxide kua whakawhanakehia ake, ina koa ko nga hua e whai ake nei he maha ake. te hopu-kanohi: MXD6 nga taonga whakakakahu polyamide;Polyethylene glycol naphthalate (PEN);Kiriata whakaetonga Silicon oxide, etc.
Wā tuku: Maehe-09-2023