Cholepheretsa chotchinga cha mankhwala osokoneza bongo a aluminium alul mu phukusi lolimba
Kukhulupirika kwa Mlingo wolimba kumadalira kwambiri magwiridwe antchito a Zojambula zotchinga za aluminium, zomwe zimafuna chitetezo choyambirira kuwonongeka kwa chilengedwe kuti zisagwire (Mulimoo). Kusanthula kumeneku kumatsimikizira zojambulazo ndikupanga zotchinga zotchinga zazikulu za ziphuphu za aluminiyamu motsutsana ndi zoopsa za chinyezi komanso mpweya.
1. Gawo lalikulu la zinthu zotchinga
Kusungabe kukhazikika kwa mankhwala ndi kuchiritsa kwamphamvu kwa mitundu yolimba pakamwa ndikofunikira pakupanga mankhwala.
Apis nthawi zambiri amatengeketsedwa ndi njira zowonongeka, kuphatikiza hydrolysis (chinyezi-choyendetsedwa) ndi oxidation (oxygen-driven).
Izi zimathandizanso zinthu zomwe zimapereka mwayi wapamwamba kwambiri, Chofunikira chomwe chakwaniritsidwa mwapadera ndi ma aluminim opangidwa ndi aluminium.
2. Mapangidwe a zojambulajambula za zojambulajambula
Mapulasitiki a mankhwala osokoneza bongo ndi alticiontal imagwera opanga zowonongeka kuti aphatikize chotchinga chotchinga ndi makina ofunikira a ma polima..
2.1 Chovuta
Pakati pa computite ndi aluminium wosanjikiza, nthawi zambiri kuyambira 20 $\mu $ m 50 $\mu $ m makulidwe.
Aluminium, Zopanda zokongoletsera zopanda pake zakuthwa zimalepheretsa gawo la mpweya ndi mamolekyu amadzi.
Gawo lazitsulo izi ndi gawo lofunikira kwambiri lomwe limakhala ndi lalikuluZojambula zotchinga za aluminiumntchito.
2.2 Ma polymer polymer
Chingwe cha aluminiyamu chimakhala pakati pa zigawo za polymeric, aliyense akutumikiranso cholinga.
Dayo lakunja (E.g., OPA kapena chiweto) imapereka mphamvu zamakina ndikulimbana ndi abrasion nthawi yogwira ntchito.
Gawo lamkati, Nthawi zambiri kutentha kwa checquer (Hsl) kapena polymer ngati pvc, amatsimikizira chikhalire, Chisindikizo chapansi-chotsirizira kwambiri.
3. Zotchinga zotchinga za oxygen (Ovp)
Kuwonongeka kwa oxidath kumatha kuchepa mwachangu kwa apinanc ndikupanga zolemba zosafunikira.
Kuchuluka kwa oxygen (OTR), kuyeza mu $ {cc}/(\malembo{m}^ 2 CDOT {tsiku})$, ndi ma metric muyezo wa ovp.
ChokwaniraZojambula zotchinga za aluminiumimawonetsa otr yomwe ili zero, Nthawi zambiri zimagwera pansi pa zida zoyeserera zoyeserera (E.g., Zida Zachikhalidwe).
Chiopsezo choyambirira kwa ovp ndiye kupezeka kwa ma piny kapena ming'alu, zomwe zingayambike panthawi yopumira kapena yolumikizira.
Tebulo 1: Kufalikira kwa Oxygen Kutumiza (OTR) za zida zapamalo
| Mtundu Wathupi | Makulidwe ($\mu $ m) | Mikhalidwe | OTR ($\malembo{cc}/(\malembo{m}^ 2 CDOT {tsiku})$) | Chovala chotchinga |
| Vvc | 250 | $23^ mafoni {C}$, 0% RH | 10 - 15 | Pansi |
| PVDC yophika PVC | 250 | $23^ mafoni {C}$, 0% RH | 0.1 - 1.0 | Wapakatikati |
| Zojambula za aluminite alumu | 25 (Wal osanjikiza) | $23^ mafoni {C}$, 0% RH | $< 0.005$ | Zabwino kwambiri |
| Zojambula zozizira (Alu-alu) | 45 (Wal osanjikiza) | $23^ mafoni {C}$, 0% RH | $< 0.001$ | Wabwino |
4. Magwiridwe otchinga (Mvp)
Chinyontho cha Vapor Vapor (Mtengo WVTR), kuyeza mu $ {g}/(\malembo{m}^ 2 CDOT {tsiku})$, nthawi zambiri imakhala gawo lovuta kwambiri loti mankhwala osokoneza bongo.
Masamba a aluminium amawonetsetsa kwambiri za WVTR, kupangaZojambula zotchinga za aluminiumZofunikira pa hygroscopic apis.
4.1 Dongosolo la ALU-Alu
Mankhwala otsetsereka kwambiri (E.g., Kalasi i kalasi), Alu-Alu blister system imapereka chitetezo chokwanira.
Dongosololi limagwiritsa ntchito zojambulazo za aluminiyamu zophatikizika pazotchingira ndi ukonde wapansi (Zojambula zozizira, CFF).
Njira ya CFF imafuna kuwongolera kolondola kuti mupewe kupsinjika kwapang'onopang'ono kwapakatikatiZojambula zotchinga za aluminiumpakupanga zibowo.
Tebulo 2: Magwiridwe a WVTR ndi Kukwanira Kwa Mafomu Olimba a Mlingo
| API Sensitivity Kalasi | WVTR yofunika ($\malembo{g}/(\malembo{m}^ 2 CDOT {tsiku})$) | Yesani Packaging Solution | Key Barrier Mechanism |
| Kalasi I (Zomverera Kwambiri) | $< 0.05$ | Zojambula zozizira (Alu-alu) | Near-Zero Permeability ya Al |
| Kalasi II (Zomverera Pakatikati) | $0.05 - 0.5$ | PVDC/PVC Blister yokhala ndi Aluminium Lidding | Chisindikizo cha PVDC ndi chisindikizo cha aluminiyam |
| Kalasi III (Osazindikira pang'ono) | $> 0.5$ | Vvc / aluminim thirister | Chisindikizo cha aluminium |
5. Chitsimikizo Chachiweniweni ndi Kuyesa kukhulupirika
Kuwonetsetsa zolimba, chiwongolero cholimba ndichofunika kuvomerezedwa konsekonse.
Kuyeserera kwa mawu (Otr ndi WVTR) imatsimikizira zomwe zimapangitsa kuti pakhale lathyathyathyaZojambula zotchinga za aluminiummalaya.
Kuyika pambuyo Kuyesa ndikofunikira kuti mutsimikizire kukhulupirika kwa chisindikizo chomaliza, zomwe ndizomwe ndizovuta kwambiri.
Njira monga kulowa kwa utoto, kuvunda, ndi kuzindikirika kwamphamvu kwambiri (Hvld) amagwiritsidwa ntchito kutsimikizira kukhulupirika.
Kusanthula kwa ma microscopic ndi electrochemical kumagwiritsidwa ntchito kuti mudziwe ndikuthana ndi ma pick, zomwe zimasokoneza kwambiri chotchinga chaZojambula zotchinga za aluminium.
Mapeto
Zithunzi za aluminite aluminiyam zikuyimira muyezo wagolide kuti ukwaniritse chitetezero chachikulu chotchinga. Mapangidwe awo amakongoletsa amatsitsimutsidwa pafupi ndi zonena za zero kwa oxygen ndi chinyezi, Kuteteza kukhazikika kwa apis. Zotchinga zonse zimayambitsa mtundu waZojambula zotchinga za aluminium Zinthu ndi kulondola kwa njira yomaliza, Kufunika Kupitilira Kupitilira kwa Miyezo Yopindika.