DDI, CAS: 68239-06-5 Dimeryl Diisocyanate, Dimeryl-di- isocyanate
I-DDI yi-aliphatic diisocyanate ekhethekileyo enokuthi idityaniswe kunye ne-hydrogen-containing compounds esebenzayo ukulungiselela iipolima.Yikhompawundi yekhonkco elide kunye ne-36-carbon dimerized fatty backbone.Isakhiwo esiphambili sekhonkco sinika i-DDI ukuguquguquka okuphezulu, ukuxhathisa kwamanzi kunye netyhefu ephantsi kunezinye isocyanates ze-aliphatic.I-DDI lulwelo olune-viscosity ephantsi, lunyibilika ngokulula kuninzi lwezinyibilikisi ezimhlophe okanye ezingezizo ezipolar.Ngenxa yokuba i-aliphatic isocyanate, ineempawu ezingekho tyheli.
Yintoni ukusetyenziswa kunye noncedo lwe-DDI?
I-DDI ingasetyenziselwa ukulungisa iipholima ezineekhompawundi zehydrogen ezimbini okanye ngaphezulu ezisebenzayo, ezinokuthi zisetyenziswe ukulungisa i-polyurethane (urea) elastomers ezineempawu ezikhethekileyo, ii-agent zokunyanga ii-rocket propellants, izinto zokuncamathelisa, izitywini, ukugqitywa kwelaphu, iphepha, Isikhumba kunye nelaphu. i-agent yokukhusela amanzi, izinto ze-elektroniki, i-agent yonyango yokukhusela amanzi, njl.
1. I-DDI inamathuba esicelo kunyango lwelaphu lokugxotha amanzi kunye nokusebenza okuthambisayo.Kulula ukwenza i-emulsion yamanzi ezinzileyo ngamanzi, enokuthi ifake amalaphu ngokuguquguquka okuhlala ixesha elide;njengelaphu lokugxotha amanzi, inesiphumo esihle sokugxotha amanzi kwaye inokuphucula umphumo we-fluoride-based based fabric water kunye ne-oyile yokugxotha.
2. I-polyurethane resins kunye ne-polyurea resins ezenziwe kwi-DDI zine-non-yellowing, i-elasticity egqwesileyo kunye ne-ductility, amandla aphezulu, uvakalelo oluphantsi lwamanzi, kunye nokuchasana kakuhle kwe-abrasion, ukuxhathisa ukunyibilika kweekhemikhali kunye nokumelana nokushisa okuphantsi.
3.I-DDI inokuhambelana okugqwesileyo kunye nokusebenza kwakhona kunye ne-hydroxyl-terinated polybutadiene, kwaye i-polymer elungiselelwe ngaphandle kwe-plasticizer inobulukhuni obuphantsi ngokungaqhelekanga.
4. Iingubo ze-polyurea ezisekelwe kwi-DDI zibambelela kakuhle kwintsimbi kunye nemithi, ngaphandle kokuqhekeka, kwaye zibonisa iimpawu ezibalaseleyo zokuxinana, iimpawu zokubambelela kunye nokumelana nemozulu.
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