Nheyo yehwaro yezvinhu zvisingapindi mvura uyekadhibhodhi-isina mafuta inoshandiswa kunotora midziyo yekurongedza chikafu inogadzirwa neyakacheneswa kemikari pulp kuburikidza neakakosha maitiro, uye yobva yaomeswa mushure mekuyera kwepasi. Kunyangwe iyo dhizaini yave saizi, kushata kwakadzikiswa, asi mafiber ari pamusoro pepepa achiri kuratidzwa kune nhamba huru yemapoka epolar hydroxyl ane yakasimba hydrophilicity, kukwira kwemhepo kwebepa uye capillary phenomenon ye. iyo fiber, mhedzisiro yemvura nemafuta kupinda ichiri yakanaka.
Kadhibhodhi kazhinji inotora nzira yekuwedzera mune pulp kana pamusoro pekugadzirisa kuti ipe bepa zvakakosha zvimiro zvakaita sekusapinda mvura, mafuta-proof uye antibacterial. Kugadziriswa kwepamusoro kunogona kuitwa nenzira yekupfekedza. Mushure mekuomeswa, firimu ine zvipingamupinyi zvakakwirira zvinoumbwa kuti iwedzere mvura uye mafuta-inodzivirira maitiro emapepa; kuderedza simba repamusoro kunogona kuvandudza anti-wetting properties ye substrate; kugadzirirabepa rakavharwaNeimwe chipingamupinyi chinhu, Nekusimudzira kushata kwayo kwepamusoro, superhydrophobic uye superoleophobic athari inogona kuwanikwa.
Mamwe mapoka anoshanda echitosan anotsiviwa nemapoka ecarboxymethyl kuti aumbe carboxymethyl chitosan (CMCS), uye cheni yemamorekuru ine nhamba huru yehydroxyl, amino uye carboxymethyl inoshanda mapoka, ayo anovandudza kunyungudika kwemvura uye firimu-kuumba zvimiro zveCMCS. Boka re hydroxyl paCMCS rine polarity yakasimba uye rine imwe repellency kuoiri, ukuwo amino boka rinochajiswa zvakanaka, izvo zvinozoshambadza mamorekuru emafuta uye kudzivirira mamorekuru emafuta kuti asapinda nekunyura bepa.
Polylactic acid (PLA) ndeimwe yenzvimbo dzinopisa mukutsvaga kwezvinhu zvinoparara pasi rose, izvo zvinogadzirisa dambudziko rekuti tsvina yakaoma kuderedzwa mushure mekushandisa petroleum-based compounds. PLA mamorekuru akabatanidzwa pamwe chete ne esterification, uye boka rinoshanda rinenge lipophilic, asi boka re ester rine yakanaka hydrophobicity, saka PLA inogona kushandiswa se hydrophobic zvinhu.
CMCS ine mafuta akanaka ekudzinga mafuta asi yakasimba hydrophilicity, nepo PLA isinganyunguriki mumvura, uye iyo yakaonda yakaumbwa mushure mekuputira ine hydrophobic effect, asi mapoka anoshanda pane molecular chain ane imwe lipophilicity. Chiyero pakati pezviviri chinonyanya kukosha pakusimudzira mvura nemafuta kuramba kwetakeaway food packaging.
Nguva yekutumira: Nov-14-2022