Toluene Diisocyanate (TDI) ndi chinthu chofunikira kwambiri cha organic mankhwala, chomwe chimapangidwa makamaka ndi momwe toluene diamine ndi phosgene. Monga gawo lofunika kwambiri pakupanga polyurethane, TDI imagwiritsidwa ntchito kwambiri popanga thovu losinthika, zokutira, zomatira, ma elastomers, ndi zina zambiri. TDI ikupezeka mumitundu iwiri ikuluikulu ya isomeri: TDI-80 (80% 2,4-TDI ndi 20% 2,6-TDI) ndi TDI-100 (100% 2,4-TDI), pomwe TDI-80 imakhala giredi yamakampani yomwe imagwiritsidwa ntchito kwambiri.
Zofunika Kwambiri
High Reactivity:TDI ili ndi magulu a isocyanate (-NCO), omwe amatha kuchitapo kanthu ndi hydroxyl, amino, ndi magulu ena ogwira ntchito kuti apange zipangizo za polyurethane.
Ubwino Wamakina:Amapereka zipangizo za polyurethane ndi elasticity yapamwamba, kukana kuvala, ndi mphamvu zong'ambika.
Kuwoneka Kochepa:Zosavuta kukonza ndi kusakaniza, zoyenera njira zosiyanasiyana zopangira.
Kukhazikika:Chokhazikika pansi pa malo owuma osungira koma chiyenera kukhala kutali ndi chinyezi.