Mapulasitiki akhala akugwiritsidwa ntchito kwambiri pamoyo wathu watsiku ndi tsiku.Pali mitundu yambiri ya zipangizo zapulasitiki.Nthawi zambiri timawawona m'mabokosi opangira pulasitiki, kukulunga pulasitiki, etc. / Makampani opanga zakudya ndi amodzi mwa mafakitale omwe amagwiritsidwa ntchito kwambiri pazinthu zapulasitiki, chifukwa chakudya ndimakampani omwe amagwiritsidwa ntchito kwambiri.Ili pafupi ndi moyo wa anthu, ndipo mitundu yosiyanasiyana ya zakudya ndi yolemera kwambiri komanso yotakata, choncho pali zinthu zambiri zomwe zimagwiritsidwa ntchito popanga zakudya zapulasitiki, makamaka m'matumba akunja a chakudya.
Chiyambi cha zinthu kalasi chakudya
PET
Pulasitiki ya PET nthawi zambiri imagwiritsidwa ntchito popanga mabotolo apulasitiki, mabotolo akumwa ndi zinthu zina.Mabotolo amadzi amchere a pulasitiki ndi mabotolo a zakumwa za kaboni zomwe anthu nthawi zambiri amagula ndizinthu zonse zopangira PET, zomwe ndi zida zapulasitiki zotetezedwa ndi chakudya.
Zowopsa zobisika zachitetezo: PET ndiyoyenera kutentha kwachipinda kapena zakumwa zoziziritsa, osati chakudya chambiri.Ngati kutentha kwatenthedwa, botolo limatulutsa zinthu zapoizoni zomwe zingayambitse khansa.Ngati botolo la PET likugwiritsidwa ntchito motalika kwambiri, limangotulutsa zinthu zoopsa, choncho botolo la chakumwa cha pulasitiki liyenera kutayidwa mwamsanga mukangogwiritsa ntchito, ndipo sayenera kugwiritsidwa ntchito kusunga zakudya zina kwa nthawi yaitali, kuti zisawononge thanzi. .
PP
Pulasitiki ya PP ndi imodzi mwamapulasitiki omwe amapezeka kwambiri.Ikhoza kupangidwa kukhala pulasitiki yopangira mankhwala aliwonse, monga matumba apulasitiki apadera a chakudya, mabokosi apulasitiki a chakudya, udzu wa chakudya, zigawo za pulasitiki za chakudya, etc. Ndi zotetezeka, zopanda poizoni ndipo zimakhala ndi kutentha kochepa komanso kutentha kwambiri. kukaniza., PP ndi pulasitiki yokhayo yomwe imatha kutenthedwa mu uvuni wa microwave, ndipo imakhala ndi mphamvu zopindika (nthawi 50,000), ndipo sichidzawonongeka pamene ikugwa kuchokera pamwamba pa -20 °C.
Zomwe Zilipo: Kulimba kumakhala kocheperapo kwa OPP, kumatha kutambasulidwa (kutambasula kwanjira ziwiri) kenako kukokera mu katatu, chisindikizo chapansi kapena chisindikizo chakumbali (thumba la envelopu), zinthu za mbiya.Kuwonekera ndi koyipa kuposa OPP
Zithunzi za HDPE
Pulasitiki ya HDPE, yomwe imadziwika kuti polyethylene yapamwamba kwambiri, imakhala ndi kutentha kwapamwamba kwambiri, kuuma bwino, mphamvu zamakina ndi kukana mankhwala.Ndizinthu zopanda poizoni komanso zotetezeka ndipo nthawi zambiri zimagwiritsidwa ntchito popanga zotengera zakudya zapulasitiki.Imamveka ngati brittle ndipo imagwiritsidwa ntchito kwambiri pamatumba a vest.
Zowopsa zachitetezo zobisika: Zotengera zapulasitiki zopangidwa ndi HDPE sizosavuta kuyeretsa, kotero kukonzanso sikovomerezeka.Ndibwino kuti musayike mu microwave.
LDPE
Pulasitiki ya LDPE, yomwe imadziwika kuti low density polyethylene, ndi yofewa pokhudza.Zopangidwa ndi izo zimakhala ndi mawonekedwe osasangalatsa, osanunkhiza, opanda poizoni komanso osawoneka bwino.Amagwiritsidwa ntchito m'magawo apulasitiki pazakudya, filimu yophatikizika yonyamula chakudya, filimu yophatikizira chakudya, mankhwala, ma CD apulasitiki amankhwala, etc.
Zowopsa zobisika zachitetezo: LDPE siwolimbana ndi kutentha, ndipo nthawi zambiri kusungunuka kotentha kumachitika pamene kutentha kupitilira 110 °C.Monga: chakudya cham'nyumba chophimba pulasitiki sichiyenera kukulunga chakudya ndikuchitenthetsa, kuti tipewe mafuta m'zakudya kuti asasungunuke mosavuta zinthu zovulaza mu pulasitiki.
Kuonjezera apo, momwe mungasankhire matumba apulasitiki oyenera chakudya?
Choyamba, matumba apulasitiki oyikamo chakudya amakhala opanda fungo ndipo alibe fungo akachoka kufakitale;matumba apulasitiki okhala ndi fungo lapadera sangathe kugwiritsidwa ntchito kusunga chakudya.Chachiwiri, matumba apulasitiki achikuda (monga ofiyira kwambiri kapena akuda pakali pano pamsika) sangathe kugwiritsidwa ntchito ngati matumba apulasitiki a chakudya.Chifukwa mitundu iyi yamatumba apulasitiki oyikapo nthawi zambiri amapangidwa ndi zinyalala zobwezerezedwanso.Chachitatu, ndi bwino kugula matumba apulasitiki kuti azidya m'masitolo akuluakulu, osati m'misewu, chifukwa kuperekedwa kwa katundu sikutsimikiziridwa.
Nthawi yotumiza: Sep-30-2022