I-DDI, CAS: 68239-06-5 Dimeryl Diisocyanate, Dimeryl-di-isocyanate
I-DDI iyi-aliphatic diisocyanate eyingqayizivele engahlanganiswa nezinhlanganisela ezisebenzayo eziqukethe i-hydrogen ukuze kulungiswe ama-polymer.Kuyinhlanganisela enamaketanga amade enomgogodla we-36-carbon dimerized fatty acid.Isakhiwo seketango eliyinhloko sinikeza i-DDI ukuguquguquka okuphakeme, ukumelana namanzi kanye nobuthi obuphansi kunamanye ama-aliphatic isocyanate.I-DDI iwuketshezi olune-viscosity ephansi, oluncibilika kalula kuzincibilikisi eziningi ezitholakala endaweni epholile noma ezingezona ezimhlophe.Ngoba iyi-aliphatic isocyanate, inezindawo ezingaphuzi.
Yini ukusetshenziswa kanye nenzuzo ye-DDI?
I-DDI ingasetshenziselwa ukulungisa ama-polymers anezinhlanganisela ezimbili noma ngaphezulu ze-hydrogen ezisebenzayo, ezingasetshenziswa ukulungisa ama-elastomers e-polyurethane (urea) anezakhiwo ezikhethekile, ama-ejenti okwelapha ama-rocket propellants aqinile, izinto zokunamathisela, ama-sealants, ukuqedwa kwendwangu, iphepha, Isikhumba kanye nendwangu. i-ejenti yokuvimbela amanzi, izinto ze-elekthronikhi, i-ejenti yokwelapha yokuvimbela amanzi ngokhuni, njll.
1. I-DDI inamathuba okusebenza ekwelapheni ukuxosha amanzi ngendwangu nokusebenza okuthambisayo.Kulula ukwakha i-emulsion yamanzi ezinzile ngamanzi, enganikeza izindwangu ngokuguquguquka okuhlala isikhathi eside;njengendwangu yokuxosha amanzi, inomphumela omuhle wokuxosha amanzi futhi ingabuye ithuthukise umphumela wamanzi wendwangu esekelwe ku-fluoride kanye ne-oil repellent.
2. Ama-polyurethane resins kanye ne-polyurea resins enziwe nge-DDI ayinalo phuzi, ukunwebeka okuhle kakhulu kanye ne-ductility, amandla aphezulu, ukuzwela kwamanzi aphansi, nokuphikiswa okuhle kokuhuzuka, ukumelana nokuncibilika kwamakhemikhali kanye nokumelana nezinga lokushisa eliphansi.
3.I-DDI inokuhambisana okuhle kakhulu nokusebenza kabusha nge-hydroxyl-terinated polybutadiene, futhi i-polymer elungiselelwe ngaphandle kwe-plasticizer inobunzima obuphansi ngokungavamile.
4. Izingubo ze-polyurea ezisekelwe ku-DDI zinamathela kahle ensimbi nasezinkuni, ngaphandle kokuqhekeka, futhi zibonisa izakhiwo ezinhle kakhulu zokudonsa, izakhiwo zokunamathela kanye nokumelana nesimo sezulu.
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