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Ukusetyenziswa kweDdi kwilaphu lelaphu

I-Diisocyanate (DDI) yi-aliphatic diisocyanate eyodwa kunye ne-36 carbon atom dimer fatty acid backbone. Ulwakhiwo lunika i-DDI ukuguquguquka okungcono kunye nokubambelela kunezinye isocyanates aliphatic. I-DDI ineempawu zetyhefu ephantsi, akukho tyheli, inyibilika kwi-solvents ezininzi ze-organic, ubuthathaka bamanzi aphantsi kunye ne-viscosity ephantsi. I-DDI luhlobo lwemisebenzi emibini ye-Isocyanate, inokusebenza ngeekhompawundi zehydrogen ezimbini okanye ngaphezulu ezisebenzayo ukwenza ipolima. I-DDI ingasetyenziselwa i-rocket propellant eqinile, ukugqiba ilaphu, iphepha, isikhumba kunye ne-repellent yelaphu, unyango lokukhusela umthi, ukubumba kombane kunye nokulungiswa kweempawu ezikhethekileyo ze-polyurethane (urea) elastomers, i-adhesive kunye ne-sealant, njl.

Kushishino lweFabric, i-DDI ibonisa i-app egqwesileyo ye-prospect in the water-repent and softening properties to fabrics. Ayinabungozi kangako emanzini kune-isocyanates enevumba elimnandi kwaye ingasetyenziselwa ukulungisa i-emulsions enamanzi azinzileyo.

Ukusetyenziswa kwe-0.125% DDI kunika ilaphu ukuthamba okuhlala ixesha elide; Amalaphu aphathwe ngezinto ezithambileyo ze-cationic ezinokuguquguquka okufanayo emva kokuhlamba kwe-26. Ilaphu lokugxotha amanzi lisebenzisa i-1% DDI linesiphumo esifanayo okanye esingcono sokugxotha amanzi njenge-fat pyridine yokugxotha amanzi (uvavanyo lwe-AATCC).

I-DDI inokuphucula isiphumo sokugxotha amanzi kunye ne-oyile yokugxotha amalaphu e-fluorinated. Xa isetyenziswe ngokudibeneyo, i-DDI inokuphucula ngokubonakalayo iipropati zokugxotha amanzi kunye neoli ye-oyile yempahla.

Zombini iilabhoratri kunye novavanyo lwasendle lubonise ukuba i-DDI inokumelana ngcono nokuhlamba kunye nokucoca okomileyo kune-fluoride okanye izongezo zelaphu ezifana ne-antistatic agents.

I-DDI, elungiselelwe ukusuka kwi-dimer fatty acids, luhlobo oluqhelekileyo lwe-isocyanate eluhlaza, ehlaziyiweyo ye-bio. Xa kuthelekiswa ne-Universal isocyanate TDI, MDI, HDI kunye ne-IPDI, i-DDI ayinayo inetyhefu kwaye ayikhuthazi. Ngokuthandwa kwezixhobo ze-dimeric acid ekrwada e-China kunye nokunyuka kwengqwalasela yabantu kwi-carbon ephantsi yokukhusela uqoqosho lokusingqongileyo kunye nophuhliso oluzinzileyo, ukubaluleka kokusetyenziswa kwezixhobo ze-bio-renewable ukulungisa i-DDI iye yavela ngokuthe ngcembe, enentsingiselo ebalulekileyo ebonakalayo yokukhuthaza uphuhliso loshishino lwe-polyurethane.


Ixesha lokuposa: Dec-15-2020