Diisocyanate (DDI) ndi diisocyanate yapadera ya aliphatic yokhala ndi msana wa 36 carbon atom dimer fatty acid. Kapangidwe kake kamapatsa DDI kusinthasintha ndi kumamatira bwino kuposa ma isocyanate ena a aliphatic. DDI ili ndi mphamvu zochepa za poizoni, yopanda chikasu, imasungunuka m'zinthu zambiri zachilengedwe, imakhala yofooka komanso yokhuthala pang'ono. DDI ndi mtundu wa ntchito ziwiri za Isocyanate, imatha kugwira ntchito ndi ma hydrogen compounds awiri kapena kuposerapo kuti ipange polima. DDI ingagwiritsidwe ntchito mu rocket propellant yolimba, kumaliza nsalu, mapepala, chikopa ndi nsalu, mankhwala osungira matabwa, kukonza potengera zamagetsi ndikukonzekera zinthu zapadera za polyurethane (urea) elastomers, zomatira ndi zomatira, ndi zina zotero.

Mu makampani opanga nsalu, DDI imagwiritsa ntchito bwino kwambiri popanga nsalu zomwe zimaletsa madzi komanso zimafewetsa. Sizimakhudzidwa kwambiri ndi madzi kuposa ma isocyanates onunkhira ndipo ingagwiritsidwe ntchito popanga ma emulsions okhazikika amadzi.

Kugwiritsa ntchito 0.125%DDI kumapatsa nsaluyo kufewa kolimba; Nsalu zothiridwa ndi zofewa za cationic zosalimba zimakhala ndi kusinthasintha kofanana pambuyo potsuka 26. Chotsukira madzi cha nsalu pogwiritsa ntchito 1%DDI chili ndi mphamvu yofanana kapena yabwino kuposa chotsukira madzi cha fat pyridine (AATCC test).

DDI imatha kusintha momwe nsalu zothira madzi ndi mafuta zimagwirira ntchito. Ikagwiritsidwa ntchito pamodzi, DDI imatha kusintha kwambiri momwe nsalu zimathira madzi ndi mafuta zimagwirira ntchito.

Kuwunika kwa labotale ndi kumunda kwasonyeza kuti DDI imakana kusamba ndi kuyeretsa mouma kuposa zowonjezera za fluoride kapena nsalu monga zotsutsana ndi kutentha.

DDI, yopangidwa kuchokera ku ma dimer fatty acids, ndi mtundu wamba wa isocyanate wobiriwira, wosinthika ndi zinthu zachilengedwe. Poyerekeza ndi isocyanate yonse TDI, MDI, HDI ndi IPDI, DDI si poizoni komanso siyolimbikitsa. Chifukwa cha kutchuka kwa zipangizo zopangira dimeric acid ku China komanso chidwi cha anthu pa chuma choteteza chilengedwe chotsika ndi mpweya woipa komanso chitukuko chokhazikika, kufunika kogwiritsa ntchito zipangizo zopangira bio-renewable pokonzekera DDI kwawonekera pang'onopang'ono, zomwe zili ndi tanthauzo lofunikira pakulimbikitsa chitukuko cha mafakitale a polyurethane.