Thermoplastic polyurethane (TPU) ndi gulu lapadera la pulasitiki lomwe limapangidwa pamene polyaddition reaction imachitika pakati pa diisocyanate ndi diol imodzi kapena zingapo. Polima yosinthika iyi, yomwe idapangidwa koyamba mu 1937, ndi yofewa komanso yokonzedwa ikatenthedwa, yolimba ikazizira ndipo imatha kukonzedwanso kangapo popanda kutaya umphumphu wa kapangidwe kake. Imagwiritsidwa ntchito ngati pulasitiki yosinthika kapena m'malo mwa rabara yolimba, TPU imadziwika ndi zinthu zambiri kuphatikizapo: kutalika kwake kwakukulu ndi mphamvu yokoka; kusinthasintha kwake; komanso mosiyanasiyana, kuthekera kwake kukana mafuta, mafuta, zosungunulira, mankhwala ndi kusweka. Makhalidwe amenewa amapangitsa TPU kukhala yotchuka kwambiri m'misika ndi ntchito zosiyanasiyana. Pokhala yosinthasintha mwachibadwa, imatha kutulutsidwa kapena kupangidwa ndi jakisoni pazida zodziwika bwino zopangira thermoplastic kuti ipange zinthu zolimba zomwe nthawi zambiri zimakhala nsapato, chingwe & waya, payipi ndi chubu, filimu ndi pepala kapena zinthu zina zamakampani. Itha kuwonjezeredwanso kuti ipange mapangidwe olimba apulasitiki kapena kukonzedwa pogwiritsa ntchito zosungunulira zachilengedwe kuti ipange nsalu zomata, zokutira zoteteza kapena zomatira zogwira ntchito.
Kodi nsalu ya TPU yosalowa madzi ndi chiyani?
Nsalu ya TPU yosalowa madzi ndi nembanemba yokhala ndi zigawo ziwiri ndipo imakhala ndi magwiridwe antchito ambiri.
Kuphatikiza mphamvu yong'ambika kwambiri, yosalowa madzi, komanso yotsika chinyezi. Yopangidwira njira yopangira nsalu yotchinga. Yodziwika bwino chifukwa cha kusasinthasintha kwake, imatulutsa mafilimu apamwamba kwambiri, odalirika kwambiri a thermoplastic polyurethane (TPU) ndi copolyester osalowa madzi omwe amapumira m'makampani. Mafilimu ndi mapepala opangidwa ndi TPU osinthasintha komanso olimba amagwiritsidwa ntchito popangira nsalu yotchinga, kutchinga madzi, komanso kugwiritsa ntchito mpweya kapena madzi. Mafilimu ndi mapepala a TPU owonda kwambiri komanso okonda madzi ndi oyenera kwambiri potchinga nsalu. Opanga amatha kupanga zinthu zopumira zotsika mtengo zosalowa madzi zomwe zimapumira mu filimu imodzi yotchinga nsalu. Zipangizozi zimapereka mpweya wabwino kwambiri kuti ogwiritsa ntchito azisangalala nazo. Mafilimu ndi mapepala oteteza nsalu amawonjezera kubowola, kusweka, komanso kukana mankhwala ku nsalu zomwe zimamangiriridwa nazo.
Nthawi yotumizira: Meyi-06-2024