Diisocyanate (DDI) bụ diisocyanate aliphatic pụrụ iche nwere 36 carbon atom dimer fatty acid azụ.Ọdịdị ahụ na-enye DDI mma mgbanwe na nrapado karịa ndị ọzọ aliphatic isocyanates.DDI nwere akụrụngwa nke nsi dị ala, enweghị odo odo, na-agbari n'ọtụtụ ihe mgbaze organic, obere mmiri nwere mmetụta na viscosity dị ala.DDI bụ ụdị ọrụ abụọ Isocyanate, ọ nwere ike ịrụ ọrụ na ogige hydrogen abụọ ma ọ bụ karịa na-arụ ọrụ iji mee polymer.Enwere ike iji DDI mee ihe na rocket propellant siri ike, ihe na-emecha akwa, akwụkwọ, akpụkpọ anụ na ihe na-eme ka ọ bụrụ ihe na-eme ka ọ bụrụ ihe na-eme ka ọ bụrụ ihe na-eme ka ọ bụrụ ihe na-eme ka ọ bụrụ ihe na-eme ka ọ bụrụ ihe na-edozi osisi, ihe ọkụkụ eletrik na nkwadebe nke ihe pụrụ iche nke polyurethane (urea) elastomers, nrapado na sealant, wdg.

N'ime ụlọ ọrụ akwa akwa, DDI na-egosi atụmanya ngwa dị mma na mmiri na-egbochi mmiri na ihe na-eme ka ọ dị nro na akwa ákwà.Ọ naghị enwe mmetụta na mmiri karịa aromatic isocyanates ma enwere ike iji ya dozie emulsions aqueous kwụsiri ike.

Ojiji nke 0.125% DDI na-enye akwa ahụ ịdị nro na-adịgide adịgide;A na-ejikwa ihe nro cationic na-adịghị adịgide adịgide na-enwe ụdị mgbanwe ahụ mgbe ịsachara 26.Ihe eji eme akwa akwa na-eji 1% DDI nwere otu ma ọ bụ ka mma na-eme ka mmiri dị ka abụba pyridine mmiri na-ekpuchi mmiri (AATCC test).

DDI nwere ike imeziwanye mmetụta nke mmiri na-egbochi mmiri na mmanụ maka akwa fluorinated.Mgbe ejiri ya mee ihe, DDI nwere ike imeziwanye ihe ndị na-eme ka mmiri na mmanụ na-eme ka akwa dị mma.

Ma nyocha ụlọ nyocha na ubi egosila na DDI nwere nguzogide dị mma maka ịsacha na ihicha akọrọ karịa fluoride ma ọ bụ ihe mgbakwunye akwa dị ka ndị na-ahụ maka antistatic.

DDI, nke a kwadebere site na dimer fatty acids, bụ ụdị akwụkwọ ndụ akwụkwọ ndụ na-ahụkarị, ụdị isocyanate dị iche iche na-emegharịghachi.Tụnyere eluigwe na ala isocyanate TDI, MDI, HDI na IPDI, DDI adịghị egbu egbu na-adịghị na-akpali akpali.Na ewu ewu nke dimeric acid akụrụngwa na China na ndị mmadụ na-amụba anya na obere carbon gburugburu ebe obibi aku na uba na mmepe na-adigide, mkpa nke iji bio-emeghari ohuru akụrụngwa iji kwadebe DDI ji nwayọọ nwayọọ pụta, nke nwere mkpa bara uru bara uru maka ịkwalite mmepe nke ụlọ ọrụ polyurethane.