I-Diisocyanate (DDI) yi-aliphatic diisocyanate eyahlukileyo ene-36 carbon atom dimer fatty acid backbone. Isakhiwo sinika i-DDI ukuguquguquka okungcono kunye nokunamathela kunezinye i-aliphatic isocyanates. I-DDI ineempawu zetyhefu ephantsi, ayinamthubi, iyanyibilika kwiintlambululi ezininzi ze-organic, ayichukumisi manzi kakhulu kwaye ayina-viscosity iphantsi. I-DDI luhlobo lwe-Isocyanate esebenzayo ezimbini, ingasebenza nee-hydrogen compounds ezimbini okanye ngaphezulu ukwenza i-polymer. I-DDI ingasetyenziswa kwi-rocket propellant eqinileyo, ukugqitywa kwelaphu, iphepha, ukukhupha isikhumba kunye nelaphu, unyango lokugcinwa komthi, ukufakelwa kombane kunye nokulungiswa kweempawu ezikhethekileyo ze-polyurethane (urea) elastomers, i-adhesive kunye ne-sealant, njl.

Kwishishini leLaphu, i-DDI ibonisa indlela ebalaseleyo yokusebenzisa le laphu kwiipropati zokungangeni manzi nokuthamba. Ayinangxaki kangako namanzi kune-isocyanates enuka kamnandi kwaye ingasetyenziselwa ukulungiselela i-emulsions yamanzi ezinzileyo.

Ukusetyenziswa kwe-0.125%DDI kunika ilaphu ukuthamba okuhlala ixesha elide; Amalaphu aphathwe ngezithambisi ze-cationic ezingomelelanga anokuguquguquka okufanayo emva kokuhlamba izihlandlo ezingama-26. Isixovuli samanzi selaphu sisebenzisa i-1%DDI sinesiphumo esifanayo okanye esingcono sokuxovula amanzi njengesixovuli samanzi se-fat pyridine (uvavanyo lwe-AATCC).

I-DDI inokuphucula isiphumo se-repellent-water kunye ne-oil kwilaphu ezine-fluorine. Xa isetyenziswa kunye, i-DDI inokuphucula kakhulu iipropati ze-repellent-water kunye ne-oil kwilaphu.

Uvavanyo lwelebhu nolwentsimi lubonise ukuba i-DDI inokumelana ngcono nokuhlanjwa nokucocwa okomileyo kune-fluoride okanye izongezo zelaphu ezifana nee-antistatic agents.

I-DDI, eyenziwe ngee-dimer fatty acids, ludidi oluqhelekileyo lwe-isocyanate eluhlaza, evuselelekayo ngokwezinto eziphilayo. Xa ithelekiswa ne-isocyanate yendalo yonke i-TDI, i-MDI, i-HDI kunye ne-IPDI, i-DDI ayinabungozi kwaye ayivuseleli. Ngokuthandwa kwezinto eziluhlaza ze-dimeric acid eTshayina kunye nengqalelo yabantu ekhulayo kuqoqosho lokukhusela okusingqongileyo oluphantsi kwekhabhoni kunye nophuhliso oluzinzileyo, ukubaluleka kokusebenzisa izinto eziluhlaza ezivuselelekayo ngokwezinto eziphilayo ukulungiselela i-DDI kuye kwavela kancinci kancinci, nto leyo inentsingiselo ebalulekileyo ekukhuthazeni uphuhliso lweshishini le-polyurethane.