Uburyo bwo guhitamo no kugura

Mugihe uguze firime ifunze cyangwa igipfunyika cya pulasitike, menya neza ko ushaka izina runaka cyangwa imiterere yimiti, kandi witondere niba ibicuruzwa bifite izina ryicyongereza gusa kandi nta kirango cyabashinwa.Kandi, menya neza guhitamo ibicuruzwa byanditseho amagambo "kubiryo".

Hariho ubwoko bubiri bwingenzi bwa firime cling: polyethylene (PE) na polypropilene (PP).Itandukaniro ryibiciro hagati yibicuruzwa byombi ntabwo ari byiza, ariko polypropilene (PP) nibyiza muguhagarika kwinjiza amavuta.

Mugihe uguze firime ya cling, birasabwa kubanza kugura firime yifata yifata ikozwe muri polyethylene (PE), cyane cyane mubijyanye no kubungabunga inyama, imbuto, nibindi, kuko PE niyo ifite umutekano mubijyanye numutekano.Kubuzima buramba, polyvinyl chloride (PVDC) irasabwa kuko ifite uburyo bwiza bwo kugumana ubushuhe kandi ikagira ubuzima burebure bwubwoko butatu bwa firime.Filime ya polyvinyl chloride (PVC) nayo ihitamo abantu benshi kubera gukorera mu mucyo kwayo, ubwiza bwayo, ubworoherane nigiciro gihendutse, ariko tugomba kumenya ko idashobora gukoreshwa mukubungabunga ibiryo byamavuta kuko ni resin igizwe na chloride polyvinyl. resin, plasitike na antioxydeant, ubwayo ntabwo ari uburozi.Nyamara, plasitike na antioxydants byongeweho ni uburozi.Amashanyarazi akoreshwa muri plastiki ya PVC kugirango akoreshwe burimunsi ni dibutyl terephthalate na dioctyl phthalate, ni imiti yuburozi.Ibi bigira ingaruka mbi cyane kuri sisitemu ya endocrine yumuntu kandi birashobora guhungabanya imisemburo yumubiri.Kurwanya stearate, antioxydeant ya polyvinyl chloride, nayo ni uburozi.Ibicuruzwa bya PVC birimo antioxydants yumunyu ngugu bigabanya isasu iyo uhuye na Ethanol, ether nibindi byuma.PVC irimo imyunyu ngugu ikoreshwa nk'ugupakira ibiryo hamwe nuduseke, udutsima dukaranze, amafi akaranze, ibikomoka ku nyama zitetse, keke hamwe nudukoryo duhura, bizatuma molekile ya sisitemu ikwirakwizwa mu mavuta, bityo ntushobora gukoresha imifuka ya pulasitike ya PVC kubiryo birimo amavuta.Mubyongeyeho, nta gushyushya microwave, nta gukoresha ubushyuhe bwo hejuru.Kubera ko ibicuruzwa bya pulasitike bya PVC bizagenda byangirika gazi ya hydrogène chloride ku bushyuhe bwo hejuru, nka 50 and, kandi iyi gaze yangiza umubiri w’umuntu, bityo ibicuruzwa bya PVC ntibigomba gukoreshwa nko gupakira ibiryo.