Ibiryo biribwa_biodegradable bipfunyika ubushakashatsi

Ubushakashatsi bwa siyansiku musaruro, ubuziranenge hamwe nibishobora gukoreshwa muri firime ziribwa / ibinyabuzima bigabanuka mu gukora ibiryo byakozwe nitsinda ryinshi ryubushakashatsi ku isi kandi byatangajwe mubitabo byubushakashatsi.^5-9.Ubushobozi bukomeye bwubucuruzi n’ibidukikije mubice bya firime ziribwa / biodegradable firime / coatings byakunze gushimangirwa^5,10,11nibisohokayandikiro byinshi byakemuye cyane cyane ibibazo bijyanye nubukanishi, kwimuka kwa gaze, ningaruka zindi mpamvu kuri iyo mitungo, nkubwoko nibirimo bya plastiki, pH, ubushuhe bugereranije nubushyuhe nibindi.^{6, 8, 10-15}.

Ariko,ubushakashatsi muri firime ziribwa / biodegradableiracyari mu ntangiriro n'ubushakashatsi ku nganda zikoreshwa mu nganda ziribwa / biodegradable film zitabiriwe cyane mu myaka yashize, ariko, gukwirakwiza biracyari bike.

Abashakashatsi muriItsinda ryo gupakira ibiryo, Ishami ryibiryo nubumenyi bwimirire, kaminuza ya kaminuza ya Cork, muri Irilande, bakoze firime nyinshi zikora, zishingiye kuri biopolymer, ziribwa / biodegradable firime mumyaka mike ishize.

Imipaka yo gupakira biribwa

Mubisanzwe, firime ziribwa zifite aho zigarukira cyane cyane kubiranga umubiri muto.Kurugero, firime imwe, ishingiye kuri lipide ifite imiterere yinzitizi nziza ariko idafite imbaraga za mashini²³.Kubwibyo, firime zometseho zakozwe muguhuza firime ebyiri cyangwa nyinshi biopolymer hamwe.Nyamara, firime ya laminated ifite akamaro kuri firime imwe, emulsiyo ishingiye kuri biopolymer kubera gutunga ibintu byongera inzitizi.Kurema ibyubatswe bifite ubushobozi bwo gutsinda izo nenge ukoresheje injeniyeri ziribwa / biodegradable firime hamwe nibikorwa byinshi.

Filime ziribwa hamwe na coatingsbishingiye kuri poroteyine zishongesha amazi akenshi usanga zishonga amazi ubwazo ariko zikagira ogisijeni nziza, lipide hamwe nuburyohe bwa barrière.Poroteyine zikora nka matrike ihuriweho, yubatswe muri sisitemu yibice byinshi, itanga firime na coatings hamwe nibikoresho byiza bya mashini.Ku rundi ruhande, Lipide ikora nk'inzitizi nziza z’ubushuhe, ariko ikagira gaze mbi, lipide na flavours.Muguhuza poroteyine na lipide muri emulsion cyangwa bilayeri (membrane igizwe na molekile ebyiri), ibiranga ibyiza byombi birashobora guhuzwa hamwe nibibi bikagabanuka.

Kuva mubushakashatsi bwakozwe naItsinda ryo gupakira ibiryokuri UCC, ibintu rusange biranga firime ziribwa / biodegradable firime niyi ikurikira:

• Umubyimba wa firime ziribwa / biodegradable firime iri hagati ya 25 mm na 140 mm
• Filime irashobora gusobanuka, gukorera mu mucyo, no gusobanuka cyangwa kugaragara bitewe nibikoresho byakoreshejwe hamwe nubuhanga bwo gutunganya bukoreshwa
• Gusaza ubwoko bwa firime mugihe cyibidukikije bigenzurwa byateje imbere imashini hamwe na barrière
• Kubika firime mubihe bidukikije (18-23 ° C, 40- 65% RH) mumyaka itanu ntabwo byahinduye cyane imiterere yimiterere
• Filime zakozwe mubintu bitandukanye zirashobora guhurizwa hamwe hamwe
• Filime yakozwe irashobora gushyirwaho ikimenyetso, gucapwa cyangwa gushyirwaho kashe
• Guhindagurika guto muri microstructure ya firime (urugero gutandukanya biopolymer) bigira ingaruka kumiterere ya firime