Tiyeni tiyang'ane kaye chiyambi chawo ndi msana (mapangidwe a maselo). LDPE (polyethylene yotsika kwambiri): Monga mtengo wobiriwira! Unyolo wake wa mamolekyu uli ndi nthambi zambiri zazitali, zomwe zimapangitsa kuti zikhale zotayirira, zosakhazikika. Izi zimapangitsa kuti zikhale zotsika kwambiri (0.91-0.93 g/cm³), zofewa kwambiri, komanso zosinthika kwambiri. HDPE (polyethylene yochuluka kwambiri): Monga asilikali motsatizana! Mamolekyu ake amakhala ndi nthambi zochepa kwambiri, zomwe zimapangitsa kuti pakhale mzere wolongedwa bwino komanso wadongosolo. Izi zimapangitsa kuti ikhale yolimba kwambiri (0.94-0.97 g/cm³), yolimba kwambiri, komanso yamphamvu kwambiri. LLDPE (polyethylene yotsika kwambiri): Mtundu "wosinthika" wa LDPE! Msana wake ndi mzere (monga HDPE), koma ndi nthambi zazifupi zogawidwa mofanana. Kuchulukana kwake kuli pakati pa ziwirizi (0.915-0.925 g/cm³), kuphatikiza kusinthasintha kwina ndi mphamvu zapamwamba.
Chidule cha Kagwiridwe ka Ntchito: LDPE: Yofewa, yowonekera, yosavuta kuyikonza, komanso yotsika mtengo. Komabe, imakhala ndi mphamvu zopanda mphamvu, zolimba, komanso kukana kutentha, zomwe zimapangitsa kuti zibowole mosavuta. LLDPE: Chovuta kwambiri! Zimapereka mphamvu zapadera, kung'ambika, ndi kukana kuphulika, kuchita bwino kwambiri kwa kutentha kochepa, komanso kusinthasintha kwabwino, koma ndizolimba kuposa LDPE. Kuwonekera kwake komanso zotchinga zake ndizapamwamba kuposa LDPE, koma kukonza kumafuna kusamala. HDPE: Chovuta kwambiri! Amapereka mphamvu zambiri, kulimba kwambiri, kukana kwamankhwala kwabwino, kukana kutentha kwabwino, komanso zotchinga zabwino kwambiri. Komabe, ili ndi vuto losasinthika komanso kusawonekera bwino.
Amagwiritsidwa ntchito kuti? Zimatengera kugwiritsa ntchito!
Ntchito za LDPE zikuphatikiza: matumba onyamula osinthika osiyanasiyana (matumba a chakudya, matumba a mkate, matumba a zovala), zokutira pulasitiki (zogwiritsa ntchito m'nyumba ndi zina zamalonda), zotengera zosinthika (monga mabotolo ofinya a uchi ndi ketchup), kusungunula waya ndi chingwe, jekeseni wopepuka zida zoumbidwa (monga zomangira botolo ndi zoseweretsa), ndi zokutira (milk cartoning).
Mphamvu za LLDPE zikuphatikizapo: mafilimu apamwamba kwambiri monga kutambasula (zoyenera kukhala nazo zopangira mafakitale), matumba onyamula katundu wolemera (zakudya ndi feteleza), mafilimu a mulch waulimi (ochepa thupi, olimba, ndi okhalitsa), matumba akuluakulu a zinyalala (osasweka), ndi zigawo zapakati za mafilimu ophatikizana. Ziwalo zowumbidwa jakisoni zomwe zimafuna kulimba kwambiri zimaphatikizapo migolo, zophimba, ndi zotengera zokhala ndi mipanda yopyapyala. Zingwe zamapaipi ndi jekete za chingwe zimagwiritsidwanso ntchito.
Mphamvu za HDPE ndi izi: zotengera zolimba monga mabotolo amkaka, mabotolo otsukira, mabotolo amankhwala, ndi migolo ikuluikulu yamankhwala. Mapaipi ndi zomangira zikuphatikizapo mapaipi amadzi (madzi ozizira), mapaipi a gasi, ndi mapaipi a mafakitale. Zopangira zopanda pake zimaphatikizapo ng'oma zamafuta, zoseweretsa (monga zomangira), ndi matanki amafuta amgalimoto. Zopangira jekeseni zimaphatikizapo mabokosi ogulitsira, mapaleti, zipewa za mabotolo, ndi zofunikira zatsiku ndi tsiku (mabeseni ochapira ndi mipando). Filimu: Matumba ogulira (olimba), matumba azinthu, ndi matumba a T-shirt.
Kalozera wosankha chiganizo chimodzi: Mukuyang'ana zikwama zofewa, zowonekera, komanso zotsika mtengo? —————LDPE. Mukuyang'ana filimu yolimba kwambiri, yosagwetsa misozi, komanso yosang'ambika, kapena yofuna kutentha pang'ono? -LLDPE (makamaka yonyamula katundu wolemera komanso filimu yotambasula). Mukuyang'ana mabotolo/migolo/migolo/mapaipi olimba, olimba, osamva mankhwala? —HDPE
Nthawi yotumiza: Oct-17-2025