mankhwala

Otsika osalimba polyethylene,
Otsika osalimba polyethylene ntchito filimu,

Polyethylene yotsika kwambiri (LDPE) ndi utomoni wopangidwa pogwiritsa ntchito njira yoponderezedwa kwambiri kudzera mu polymerization yaulere ya ethylene ndipo imatchedwanso "polyethylene yapamwamba".Low kuthamanga polyethylene fungo, zoipa, sanali poizoni woyera particles kapena ufa.Malo osungunuka ndi 131 ℃.Kachulukidwe 0.910-0.925 g/cm³.Malo ochepetsera 120-125 ℃.Embrittlement kutentha -70 ℃.Zolemba malire ntchito kutentha 100 ℃.Ndi kukana kwambiri kutentha, kukana kuzizira, kukana kuvala ndi katundu wa dielectric, kukhazikika kwamankhwala.Pafupifupi insoluble aliyense organic zosungunulira firiji.Ingathe kupirira dzimbiri zosiyanasiyana asidi ndi zamchere ndi zosiyanasiyana mchere.Polyethylene yotsika kwambiri imagwiritsidwa ntchito kwambiri m'mafakitale opanga mankhwala ndi mankhwala kuti apange zinthu zopanda kanthu, monga migolo, mabotolo ndi matanki osungira.Makampani opanga zakudya amachigwiritsa ntchito kupanga zotengera.Makampani opanga makina amagwiritsidwa ntchito popanga zophimba, zogwirira, mawilo am'manja ndi zida zina zamakina, ndipo makampani opanga mapepala amagwiritsidwa ntchito kupanga mapepala opangira.

Mbali

Kugwiritsa ntchito

LDPE(2102TN000) ndi yabwino kwambiri extrusion filimu chuma, makamaka oyenera kupanga katundu ma CD filimu, anakhetsa filimu, kutentha shrinkable ma CD filimu ndi zina zotero.

Parameters

Phukusi, Kusungirako ndi Mayendedwe

Utotowo umayikidwa m'matumba opangidwa ndi filimu ya polypropylene.Kulemera konse ndi 25Kg / thumba.Utoto uyenera kusungidwa m'nyumba yosungiramo madzi, youma komanso kutali ndi moto ndi dzuwa.Asamawunjikane panja.Poyendetsa, mankhwalawa sayenera kukumana ndi dzuwa lamphamvu kapena mvula ndipo asatengedwe pamodzi ndi mchenga, nthaka, zitsulo, malasha kapena galasi.Kuyendera limodzi ndi zinthu zapoizoni, zowononga komanso zoyaka moto ndizoletsedwa.

Polyethylene yotsika kwambiri, kapena LDPE, imadziwika ndi unyolo wokhala ndi nthambi zambiri zokhala ndi nthambi zazitali.LDPE ili ndi kachulukidwe koyambira .910 mpaka .935 magalamu pa kiyubiki centimita (g/cc).

Zikafika pakugwiritsa ntchito mafilimu apulasitiki, ma resins a LDPE amapereka kulimba kovomerezeka, kusinthasintha, kuwala, komanso permeability.Ngakhale kuti siili yolimba ngati utomoni wa LLDPE, LDPE imapereka zinthu zabwino kwambiri zochepetsera.