Desmodur Re:Funda mayelana nokusetshenziswa nezinzuzo ze-isocyanates
Desmodur rengumkhiqizo ongesigaba se-isocyanate, ngokuqokwa ngokukhethekile i-CAS 2422-91-5. I-isocyanates yizithako ezibalulekile ekukhiqizweni kwemikhiqizo ehlukahlukene ye-polyurethane, futhi i-desmodur re ayifani. Lo mbhalo uhlose ukuhlinzeka ngokuqonda okujulile kweDesmodur Re, ukusetshenziswa kwawo kanye nezinzuzo ezinikezela ngezicelo ezihlukile.
Desmodur reyi-aliphatic polysocyate esekelwe ku-hexamethylene diisocyanate (HDI). Isetshenziswa ngokuyinhloko njengengxenye eqinile egqoke izimbotshana ezizinzile ze-polyurethane nezinto ezinamathela. I-Chemistry eyingqayizivele ye-Desmodur Re kabusha yenza ilungele izinhlelo zokusebenza ezidinga ukugqokwa okuphezulu kokusebenza okune-isimo sezulu esihle kakhulu kanye nokumelana kwamakhemikhali. Ngokwengeziwe, ukuhambisana kwawo nezinhlobonhlobo zama-polyols nama-solvents athuthuka athuthukisa ukuguquguquka kwawo ekwakhiweni okuhlukile.
Enye yezinzuzo eziphambili zeDesmodur reIkhono layo lokudlulisela ukuqina okuvelele kanye nokumelana kwe-UV kokumboza. Lokhu kwenza kubekele ikakhulukazi izinhlelo zokusebenza zangaphandle, lapho ukuvezwa kwezimo zemvelo ezinokhahlo kungalimaza ukusebenza kwezimbozo zendabuko. Noma ngabe kusetshenziswe izimbobo zezimoto, izimbobo zokulungiswa kwezimboni noma ukuqedwa kwezakhiwo, i-desmodur re idlala indima ebalulekile ekuthuthukiseni isikhathi eside nokubukeka kwezindawo ezihlanganisiwe.
Ngaphezu kwendima yayo ku-Coatings, i-Desmodur Re futhi isetshenziswa ekukhiqizweni kwezikhangiso ezisezingeni eliphakeme. Izakhiwo zayo ezisheshayo zokudla kanye nokunamathela okuhle kwezinto ezahlukahlukene ezahlukahlukene kwenza kube yisithako esibalulekile kuma-adjesives ahlelekile, okunamathela ngamakhambi kanye nokwakhiwa kwe-sealant. Ama-adhesives resesives ayakwazi ukubekezelela ukucindezelwa kwemishini kanye nezici zezemvelo, abenze ukuba bakhethe okokuqala kwezicelo ezifunwayo ezimbonini ezahlukene.
Ngaphezu kwalokho,Desmodur reInikeza ama-form amakhemikhali amandla okuhambisana nezimo zezakhiwo ze-polyurethane izimbambo nokunamathela kwizidingo ezithile. Ngokushintsha isilinganiso esenziwe kanye nokufaka kabusha i-Desmodur Re, izinhlobo eziningi zezimpawu zokusebenza zingatholakala, kufaka phakathi ubunzima, ukuguquguquka nokuphikiswa kwamakhemikhali. Leli zinga lokungezela ngokwezifiso linika amandla abakhiqizi ukuthi bahlangabezane nezidingo ezahlukahlukene zabasebenzisi bokugcina emikhakheni esukela ezithunjini kanye ne-aerospace ekwakheni nasengqalasizinda.
Kubalulekile ukuqaphela ukuthi ngenkathiDesmodur reInikeza izinzuzo eziningi ngokuya ngokusebenza nokuguquguquka, ngenxa yesimo esisebenzayo se-isocyanates, ukuphathwa okufanele kanye nokuphepha kokuphepha kufanele kubhekwe. Ukuchayeka kuma-isocyanates kungahle kube yingozi yempilo, ngakho-ke kubalulekile ukulandela imihlahlandlela yokuphepha enconyiwe futhi usebenzise imishini yokuvikela yomuntu siqu efanele lapho uphatha i-desmodur re kanye neminye imikhiqizo esekwe yi-isocyanate.
Ngokufigqiwe,Desmodur reIsithako esibalulekile ekwakhiweni kwe-polyurethane egqoke kakhulu kanye nama-adhesives. Ukuqina kwayo okuhlukile, ukumelana kwe-UV nokuguquguquka kwenza kube yisithako esisemqoka ekukhiqizweni kwezimbozo kanye nokunamathela ngezinhlelo ezahlukahlukene. Ngokuqonda ukusetshenziswa nezinzuzo zeDesmodur re, Abakhiqizi kanye nabasebenzisi bokugcina bangabopha amakhono ayo ukuze bakha imikhiqizo eqinile, ehlala isikhathi eside nesezingeni eliphakeme le-polyurethane. Kodwa-ke, lapho usebenza ngemikhiqizo ye-isocyanate, kubalulekile ukubeka phambili izindlela zokuphepha ukuze kuqinisekiswe inhlala-kahle yabasebenzi nemvelo.
Isikhathi Seposi: Meyi-24-2024