Emkhakheni oguquguqukayo wokupakishwa kokudla, lapho ukuphepha, ukunwetshwa kwempilo yeshalofu, kanye nobuqotho bomkhiqizo kuhlangana, iziqinisi eziwuketshezi ziye zavela njengamaqhawe angaqashiwe. Lezi zengezo, eziklanyelwe ngokucophelela amafilimu ebanga lokudla, zidlala izindima ezihlukene ezibaluleke kakhulu empilweni yabathengi nokusebenza kahle kwezimboni. Ake singene sijule emisebenzini emine ewumongo enikeza izinzinzisi zoketshezi zibe semqoka ekupakishweni kokudla kwesimanje.
Ukuqina Kwe-Thermal: Ukuvikela Amafilimu Abangelwa UkushisaUkucekelwa phansi
Amafilimu ezinga lokudla, kungakhathaliseki ukuthi i-polyethylene (PE) noma i-polypropylene (PP), acutshungulwa izinga lokushisa eliphezulu (isb., i-extrusion, i-blow molding) afinyelela ku-230°C.Izinzinzisi zamanzisebenza njengabaqaphi abashisayo, ukuvimbela ama-radicals mahhala akhiqizwa ngesikhathi sokuchayeka ekushiseni. Ucwaningo olwenziwa yi-Institute of Packaging Technologies luthole ukuthi ngaphandle kokuqiniswa, amasampula efilimu abonisa ukwehla ngo-35% kumandla aqinile ngemva kwemizuzu eyi-10 ku-200°C. Ngokuphambene,amafilimu ane-optimized liquid stabilizeramafomula agcina ngaphezu kuka-90% wamandla awo asekuqaleni, aqinisekisa ubuqotho besakhiwo ngesikhathi sokupheka njengamathreyi okudla afakwa kuma-microwave.
Ukwandisa Impilo Yeshelufu: Ukunciphisa I-Oxidation kanye Nokuwohloka kwe-UV
Ngaphandle kokucubungula, ama-stabilizers oketshezi alwa nezingcindezi zemvelo ngesikhathi sokugcina nokuhamba. Imisebe ye-UV kanye nokuchayeka komoyampilo kungabangela i-photo-oxidation, kubangele amafilimu abe phuzi futhi abe mnyama. Isibonelo, ekuhlolweni okuqhathaniswayo kokupakishwa kwamazambane amazambane, amafilimu anezithasiselo zoketshezi eziqinisa i-UV andisa ubusha bomkhiqizo ngo-25%, njengoba kulinganiswa nenani le-peroxide. Ama-antioxidant asuselwa ku-acid enamafutha kuma-stabilizer oketshezi akhipha umoya-mpilo, kuyilapho izinto zokumunca i-UV njenge-benzotriazoles zivikela amafilimu emonakalweni wemisebe, okugcina kokubili ukukhanga kobuhle bephakheji kanye nenani lokudla okunomsoco.
UkusebenzisekaUkuthuthukisa: Ukuthuthukisa I-Melt Flow kanyeI-Homogeneity
Abakhiqizi babhekana nezinselele zokuthola ukujiya kwefilimu efanayo nokuqedwa kwendawo. Izizinzisi zoketshezi zinciphisa ukuncibilika kwe-viscosity kufika ku-18%, ngokusho kwemibiko yemboni, okwenza i-extrusion ebushelelezi. Lokhu kuthuthukiswa kubaluleke kakhulu emigqeni yokukhiqiza enesivinini esikhulu, lapho ukuhluka okungu-0.1 mm kogqinsi kungaholela ekumosheni okukhulu. Ngokuphromotha ukwenziwa kwepulasitiki okungaguquki, izizinzisi zinciphisa amaphutha afana nokuguquguquka kwesikhumba sikashaka nokuqina, okuholela ekongeni kwezindleko kanye nokukhiqiza okuthuthukisiwe.
Ukuthobela Umthetho: Ukuqinisekisa Ukuphepha Kokudla kanye NomthengiThemba
Ukuphepha kwamafilimu ebanga lokudla kuncike ekulawuleni ukufuduka okungeziwe. Iziqinisi zoketshezi kufanele zihambisane nemithetho eqinile, efana ne-US FDA 21 CFR 178.2010 kanye ne-EU Regulation (EC) No 10/2011. Ngokwesibonelo,i-calcium-zinc composite stabilizers, ezigunyazwe njengezinye izindlela ezingenabo ubuthi ezinhlanganisela zendabuko ezisekelwe kumthofu, zithobelana nezindinganiso zomhlaba jikelele zokuthintana nokudla. Amazinga azo okufuduka aphansi (≤0.1 ppm ngezinsimbi ezisindayo) azenza zilungele ukupakishwa kokudla kwezingane, lapho amamajini okuphepha ebaluleke kakhulu.
I-Future Landscape: Izinguquko ku-Stabilizer Technology
Imboni ibona ushintsho olubhekiswe ku-bio-based liquid stabilizer. Amafutha kabhontshisi wesoya epoxid, atholakala ezinsizeni ezivuselelekayo, manje afinyelela ku-30% wesabelo semakethe sokuzinzisa se-eco-friendly. Abacwaningi futhi bahlola ukwakheka kwemisebenzi eminingi ehlanganisa ukuzinzisa nezakhiwo ezisebenzayo, njengamandla e-antimicrobial. Lezi ntuthuko zithembisa ukuchaza kabusha izilinganiso zokuphepha nokusimama kokupakishwa kokudla.
Sengiphetha, iziqinisi eziwuketshezi azizona nje izithasiselo kodwa ziyizingxenye ezibalulekile ezivikela ubuqotho bokudla, zithuthukise ukukhiqizwa, futhi ziphakamise ukuthotshelwa kwemithetho. Njengoba isidingo sabathengi sokupakishwa okuphephile, okuhlala isikhathi eside sikhula, lezi zinhlanganisela eziguquguqukayo zizoqhubeka nokuvela, ziqhubekisela phambili ukwakheka kwe-ecosystem yokupakisha ukudla.
Isikhathi sokuthumela: Jul-31-2025