Kodi PET material ndi chiyani? --Kusanthula Kwakukulu kwa Polyethylene Terephthalate (PET)
Chiyambi: Mfundo Zoyambira za PET
PET ndi chiyani? Ili ndi funso lomwe anthu ambiri amakumana nalo m'moyo wawo watsiku ndi tsiku. PET, yomwe imadziwika kuti Polyethylene Terephthalate, ndi chinthu cha polyester cha thermoplastic chomwe chimagwiritsidwa ntchito kwambiri m'mafakitale opaka ndi nsalu. Ndi mawonekedwe ake abwino kwambiri akuthupi ndi mankhwala, yakhala imodzi mwazinthu zofunika kwambiri pakupangira zamakono.
Kapangidwe ka Chemical ndi katundu wa PET
PET ndi polima liniya, makamaka opangidwa ndi polycondensation wa terephthalic acid (TPA) ndi ethylene glycol (EG) pansi zinthu zina. Zinthuzi zimakhala ndi crystallinity yabwino komanso mphamvu zamakina ndipo zimawonekera kwambiri.PET ili ndi malo osungunuka a 250 ° C ndipo imakhala yosagwirizana ndi kutentha, kusunga makina ake pa kutentha kwakukulu. Ilinso ndi kukana kwamphamvu kwamankhwala komanso kukana kwa UV, kuilola kuti ikhale yokhazikika m'malo ovuta osiyanasiyana.
Magawo ofunikira a PET
Tikadziwa kuti PET ndi chiyani, tiyeni tiwone malo ake ogwiritsira ntchito.PET imagwiritsidwa ntchito kwambiri popanga zinthu, makamaka m'mabotolo a zakumwa zakumwa. Chifukwa cha mawonekedwe ake abwino komanso zotchinga, mabotolo a PET amakhala ndi gawo lalikulu pamsika wazakudya ndi zakumwa. Kuphatikiza pa gawo lopangira ma CD, PET imagwiritsidwanso ntchito m'makampani opanga nsalu, makamaka popanga ulusi wa polyester, womwe umagwiritsidwa ntchito kwambiri pazovala, nsalu zapakhomo, ndi zina zambiri.
Kusanthula kwaubwino ndi kuipa kwa zinthu za PET
Ubwino wa PET umaphatikizapo kulimba kwambiri, kulimba, kulemera kopepuka komanso kubwezeretsedwanso. Zotchinga zake zabwino kwambiri zimalola kuti chakudya ndi zakumwa zomwe zili mkati mwake zikhale zatsopano. Komanso, PET zipangizo ndi 100% recyclable, zomwe ndi zofunika pa kuteteza chilengedwe ndi resource conservation.PET imakhalanso ndi zofooka zina, monga kuthekera kwake kutulutsa kuchuluka kwa ethylene glycol kapena terephthalic acid monomer kumasulidwa pansi pazifukwa zina, ngakhale kuti zinthuzi zimakhala ndi mphamvu zochepa pa thanzi laumunthu, zimafunikabe kusamalidwa panthawi yogwiritsira ntchito.
Mwachidule: tsogolo la PET
Funso loti PET ndi zinthu zotani layankhidwa momveka bwino. Zipangizo za PET zakhala gawo lofunikira kwambiri pamakampani amakono chifukwa cha mawonekedwe awo abwino kwambiri a physicochemical komanso mwayi wosiyanasiyana wogwiritsa ntchito. Ndi kupititsa patsogolo chidziwitso cha chilengedwe komanso chitukuko chaukadaulo wobwezeretsanso, kuchuluka kwa ntchito kwa PET kukuyembekezeka kukulitsidwa, pomwe njira zake zopangira ndikugwiritsa ntchito zipitilira kukhala zatsopano. M'tsogolomu, PET idzapitiriza kugwira ntchito yofunikira pakuyika, nsalu ndi mafakitale ena, kulimbikitsa chitukuko chokhazikika cha mafakitalewa.