DDI, CAS: 68239-06-5 Dimeryl Diisocyanate, Dimeryl-di- isocyanate
DDI ni alifatique idasanzwe ya diisocyanate ishobora guhuzwa hamwe na hydrogène ikora irimo ibintu byinshi kugirango bategure polymers.Numunyururu muremure hamwe na 36-karubone dimerized fatty acide umugongo.Imiterere nyamukuru yuruhererekane itanga DDI ihindagurika, irwanya amazi nuburozi buke kurenza izindi alochatic isocyanates.DDI ni amazi make-yuzuye, byoroshye gushonga mumashanyarazi menshi cyangwa adafite inkingi.Kuberako ari alifatique isocyanate, ifite ibintu bidafite umuhondo.
Ni ubuhe buryo bukoreshwa na DDI?
DDI irashobora gukoreshwa mugutegura polymers hamwe na hydrogène ebyiri cyangwa nyinshi zikora, zishobora gukoreshwa mugutegura elastomers ya polyurethane (urea) ifite umwihariko wihariye, ikiza imiti igabanya ubukana bwa roketi, ibifunga, kashe, kurangiza imyenda, impapuro, Uruhu nigitambara. ibikoresho bitarinda amazi, ibikoresho bya elegitoronike, ibikoresho byo gutunganya ibiti, nibindi.
1. DDI ifite ibyifuzo byo kuvura amazi yimyenda no koroshya imikorere.Biroroshye gukora emulisiyo ihamye yamazi hamwe namazi, ashobora guha imyenda hamwe nigihe kirekire;nk'igitambara cyangiza amazi, gifite ingaruka nziza zo kurwanya amazi kandi gishobora no kunoza ingaruka zamazi ya fluoride yamazi hamwe no kwangiza amavuta.
2. Ibisigarira bya polyurethane hamwe na polyurea ikozwe muri DDI bifite umuhondo, ubworoherane buhebuje no guhindagurika, imbaraga nyinshi, kutumva neza amazi, hamwe no kurwanya abrasion, imiti irwanya imiti hamwe nubushyuhe buke.
3.DDI ifite ubwuzuzanye buhebuje hamwe na reaction ya hydroxyl-yarangiye polybutadiene, kandi polymer yateguwe idafite plasitike ifite ubukana buke budasanzwe.
4. DDI ishingiye kuri polyurea ifata neza ibyuma nibiti, bitavunitse, kandi bikerekana ibintu byiza cyane, imiterere ya adhesion hamwe nikirere.
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