[Katundu wa Mankhwala]

Toluene diisocyanate imapezeka m'mitundu iwiri ya isomer (2,4-toluene diisocyanate ndi 2,6-toluene diisocyanate), zomwe zili ndi makhalidwe ndi zotsatira zofanana. Toluene diisocyanate imapangidwa m'malonda ngati chisakanizo cha 80:20 (2,4-toluene diisocyanate:2,6-toluene diisocyanate) cha ma isomer awiriwa. Pa kutentha kwa chipinda, chisakanizocho ndi madzi owoneka bwino, achikasu okhala ndi fungo lakuthwa, lopweteka. Chiyenera kusungidwa mufiriji, kutali ndi kuwala ndi chinyezi mu chidebe chotsekedwa bwino mumlengalenga wopanda mpweya. Toluene diisocyanate sisungunuka m'madzi ndipo imatha kusakanikirana ndi zinthu zambiri zachilengedwe. Toluene diisocyanate imapangidwa pochita toluene diamine ndi carbonyl chloride (phosgene). Toluene diisocyanate imagwiritsidwa ntchito kwambiri ngati mankhwala opangira thovu la polyurethane, elastomers, ndi zokutira, utoto, ma varnish, ma enamel a waya, zomatira, zomatira, ndi zomangira. Imagwiritsidwanso ntchito ngati cholumikizira cholumikizira popanga ma polima a nayiloni. 2,4-Toluene diisocyanate imagwiritsidwa ntchito ngati mankhwala opangira zinthu za polyurethane, monga thovu, zokutira, ndi ma elastomers.

[Magwiritsidwe Ntchito]

Popanga ma polyurethane thovu ndi ma elastomer ena.

[Magwiritsidwe Ntchito]

Mphumu ya kuntchito ndiyo imayambitsa matenda opuma okhudzana ndi ntchito m'mafakitale. Toluene-2,4-diisocyanate (TDI) ndi imodzi mwa zinthu zomwe zimayambitsa kupuma zomwe zimayambitsa mphumu ya kuntchito.

[Magwiritsidwe Ntchito]

TDI (toluene diisocyanate) ndi chinthu chofunikira kwambiri chomwe chimapezeka mu polyurethane. TDI ndi chisakanizo cha mitundu iwiri ya ma isomers a 2,4-TDI ndi 2,6-TDI, kuphatikizapo mitundu itatu ya ma grade omwe amagwiritsidwa ntchito kwambiri: TDI-80/20, TDI-100 ndi TDI-65/35. Amagwiritsidwa ntchito makamaka popanga thovu la polyurethane losinthasintha komanso zokutira za polyurethane elastomer, zomatira, ndi zina zotero.

[Magwiritsidwe Ntchito]

Toluene-2,4-diisocyanate ndi imodzi mwa ma isocyanate omwe amagwiritsidwa ntchito kwambiri. Amagwiritsidwa ntchito popanga thovu lolimba komanso losinthasintha, ma elastomer, ndi zokutira. Kuwonjezera pa kugwiritsidwa ntchito ngati mankhwala oyera, imapezeka m'masitolo ngati chisakanizo cha ma isomers a 2,4- ndi 2,6 (80: 20% ndi 65: 35% ratios, motsatana).