Ngobaamafilimu okupakisha ukudlazinezakhiwo ezinhle kakhulu zokuvikela ngempumelelo ukuphepha kokudla, futhi ukubonakala kwazo okuphezulu kungakuhle ngempumelelo ukupakishwa, amafilimu okufaka ukudla adlala indima ebaluleke kakhulu ekupakishweni kwempahla. Ukuze kuhlangatshezwane nesimo samanje esishintshayo sangaphandle kanye nezidingo zabathengi abahlukene, izinkampani eziningi emhlabeni wonke ziye zandisa imizamo yazo yocwaningo nentuthuko kumafilimu okufaka ukudla.
1. Ifilimu yokupakisha evamile
Okwamanje amafilimu okupakisha ukudla asetshenziswa kakhulu ahlanganisa: ifilimu ye-PVA coated barrier film, biaxially oriented polypropylene film (BOPP), biaxially oriented polyester film (BOPET), inayiloni film (PA), cast polypropylene film (CPP) , aluminized film, njll. Lawa mafilimu. asetshenziswa kabanzi ngenxa yokusebenza kwawo okuhle kakhulu, ukubonakala okuhle, amandla aqine kakhulu, izindawo ezithile zokuvimbela igesi namanzi kanye nezindleko eziphansi zokukhiqiza.
2. Ifilimu yokupakisha edliwayo
Amafilimu okupakisha adliwayo abhekisela ezintweni ezidliwayo, ikakhulukazi izinto zemvelo ze-macromolecular ezifana nama-lipids, amaprotheni nama-polysaccharides, angezwe ngama-plasticizers adliwayo, ama-cross-linking agents, njll., ahlanganiswe ngemiphumela yomzimba, futhi acutshungulwe ngamasu okucubungula ahlukene Ifilimu yakhiwa. Ngokwezici zezinto zokusetshenziswa eziyinhloko ezisetshenziswayo, amafilimu adliwayo angahlukaniswa abe izigaba ezine: amafilimu adliwayo ama-carbohydrate, amafilimu adlekayo amaprotheni, amafilimu ane-lipid adliwayo, namafilimu ayinhlanganisela adliwayo. Amafilimu asebenzayo asetshenziswayo asetshenziswe kabanzi empilweni yansuku zonke, njengephepha lerayisi eli-glutinous elijwayelekile elisetshenziswa ekufakweni kukaswidi, izinkomishi zokubhaka zokubhaka ummbila zika-ayisikhilimu, njll., okuyizinto ezijwayelekile zokupakishwa ezidliwayo. Uma kuqhathaniswa nezinto zokupakisha zokwenziwa, amafilimu adliwayo angonakaliswa ngaphandle kokungcoliswa. Ngokuthuthukiswa kokuqwashisa kwabantu ngemvelo, amafilimu adliwayo asheshe abe isizinda socwaningo emkhakheni wokupakisha ukudla futhi athole imiphumela ethile.
3. Ifilimu yokupakisha ukudla elwa namagciwane
I-antibacterialifilimu yokupakisha ukudlawuhlobo lwefilimu esebenzayo enekhono lokuvimbela noma lokubulala amagciwane angaphezulu. Ngokwesimo se-antibacterial, ingahlukaniswa ngezinhlobo ezimbili: i-antibacterial eqondile kanye ne-antibacterial engaqondile. I-antibacterial eqondile itholakala ngokuthintana okuqondile phakathi kwezinto zokupakisha eziqukethe izithako ezilwa namagciwane nokudla; i-antibacterial engaqondile iwukungeza izinto ezithile kusithwali esingalungisa i-microenvironment kuphakheji, noma ukusebenzisa ukufinyeleleka okukhethiwe kwezinto zokupakisha ukulawula amagciwane. Ukukhula, okufana nefilimu yokupakisha yomkhathi eguquliwe.
4. Ifilimu yokupakisha ye-Nanocomposite
Ifilimu ye-Nanocomposite isho into yefilimu eyinhlanganisela eyakhiwe izingxenye ezinobukhulu ngokulandelana kwama-nanometers (1-100nm) ashumekwe kumatrices ahlukene. Inezinzuzo zazo zombili izinto zendabuko eziyinhlanganisela nama-nanomaterials zanamuhla. Ngenxa yomphumela ongaphezulu, umphumela wevolumu, umphumela wesayizi kanye nezinye izici ezibangelwa isakhiwo esikhethekile samafilimu e-nanocomposite, izakhiwo zawo ezibonakalayo, izakhiwo zemishini, izakhiwo ze-antibacterial, izakhiwo zokuvimbela kanye nezinye izici zinezici ezingenazo izinto ezivamile, ezizenza zibe usizo. ekudleni. Isetshenziswa kabanzi emaphaketheni, hhayi nje ukuhlangabezana nezidingo zokwandisa impilo yeshalofu yokudla, kodwa futhi nokuqapha izinguquko zekhwalithi zokudla ephaketheni.
5. Ifilimu yokupakisha engaboli
Lolu hlobo lwefilimu ikakhulukazi luxazulula inkinga yokuthi kunzima ukuvuselela izinto zokupakisha ezingaboli. Ukuzingcwaba ngaphansi komhlaba kuzocekela phansi isakhiwo senhlabathi, futhi ukushiswa kuzokhiqiza amagesi anobuthi futhi kubangele ukungcoliswa komoya. Ngokomshini wokuwohloka, ihlukaniswe ikakhulukazi ifilimu yokupakisha ekwazi ukubola kanye nefilimu yokupakisha ebolayo.
Ngenxa yokuthi amafilimu awonakaliswayo ahlangabezana nezidingo zokuvikelwa kwemvelo, manje asecwaningwa kabanzi futhi adonse ukunaka kwabacwaningi abahlukahlukene. Sekusungulwe izinto eziningi ezintsha ezibolayo nezihambisana nemvelo, njengama-polymers enziwe ngezinto ezingavuthiwe zesitashi kusetshenziswa izinsiza zezitshalo ezivuselelekayo (njengommbila). I-Lactic acid (PLA), ipulasitiki evumelana nemvelo i-polypropylene carbonate (PPC) ehlanganiswe ku-carbon dioxide ne-propylene oxide njengezisetshenziswa zokusetshenziswa, kanye ne-chitosan (chitosan) etholwe ku-deacetylation ye-chitin, etholakala kabanzi emvelweni. . Lezi zakhiwo ezibonakalayo ziyancipha; izici zokubona, ukukhanya, kanye nesicwebezelisi sendawo nakho awonakaliswa ngokuphelele. Ayigcini nje ngokuhlangabezana nokungafihli okuphezulu kwamafilimu okupakisha, kodwa futhi idlala indima ebalulekile ekuthuthukiseni imvelo, futhi inamathemba amahle okusebenza.
Kodwa-ke, kufanelekile ukusho ukuthi ifilimu yokupakisha ukudla inezidingo eziqinile mayelana nenhlanzeko nokuphepha kwezinto zokupakisha, futhi idinga amazinga ahambisanayo nezinqubo zokuhlola. Yize ezinye izinyathelo sezithathwe ekhaya naphesheya, kusekuningi okungahambi kahle. . Amazwe angaphandle asanda kuthuthukisa ukusetshenziswa kobuchwepheshe bokwelashwa kwe-plasma ukuze ahwamulise i-SiOx, i-AlOx nezinye izimbotshana ze-inorganic oxide kuma-substrates afana ne-PET ne-BOPP ukuze kutholwe amafilimu okupakisha anezakhiwo zokuthiya okuphezulu. Ifilimu ehlanganiswe ne-silicone izinzile uma kuqhathaniswa nezinga lokushisa futhi ifanele ukuphekwa okunezinga lokushisa eliphezulu nokufaka inzalo ekudleni. Amafilimu awonakaliswayo, amafilimu adliwayo namafilimu ancibilika emanzini konke kuyimikhiqizo yokupakisha eluhlaza eyenziwe ngamazwe emhlabeni jikelele eminyakeni yamuva. Ucwaningo mayelana nokusetshenziswa kwama-polymers emvelo e-macromolecular afana nama-lipids, amaprotheni noshukela njengamafilimu okupakisha nalo selulokhu ludlondlobala.
Uma unezidingo zefilimu lokupakisha ukudla, ungasithinta. Njengomkhiqizi wokupakisha oguquguqukayo iminyaka engaphezu kwengu-20, sizokunikeza izixazululo ezifanele zokupakisha ngokuya ngezidingo zakho zomkhiqizo kanye nesabelomali.
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Isikhathi sokuthumela: Dec-27-2023
