Iyini i-Desmodur RE?

I-Desmodur RE:Funda mayelana nokusetshenziswa kanye nezinzuzo ze-isocyanate

I-Desmodur REumkhiqizo oyingxenye ye-isocyanate, eqokwe ngokukhethekile i-CAS 2422-91-5. Ama-Isocyanate ayizithako ezibalulekile ekukhiqizweni kwemikhiqizo ehlukahlukene ye-polyurethane, futhi i-Desmodur RE nayo ihlukile. Lesi sihloko sihlose ukunikeza ukuqonda okujulile kwe-Desmodur RE, ukusetshenziswa kwayo kanye nezinzuzo ezinikezayo ezinhlelweni ezahlukene.

I-Desmodur REi-aliphatic polyisocyanate esekelwe ku-hexamethylene diisocyanate (HDI). Ngokuyinhloko isetshenziswa njengengxenye eqinile ekukhoneni okuqinile kwe-polyurethane kanye nokwakheka kokunamathela. Ikhemikhali eyingqayizivele ye-Desmodur RE iyenza ilungele izinhlelo zokusebenza ezidinga ukumbozwa okusebenza kahle kakhulu okunesimo sezulu esihle kakhulu nokumelana namakhemikhali. Ukwengeza, ukuhambisana kwayo nezinhlobonhlobo zama-polyols nezincibilikisi kuthuthukisa ngokwengeziwe ukuguquguquka kwayo ekwakhekeni okuhlukahlukene.

Enye yezinzuzo eziyinhloko zeI-Desmodur REyikhono layo lokunikeza ukuqina okuvelele kanye nokumelana ne-UV enamathelayo. Lokhu kuyenza ifaneleke ikakhulukazi izinhlelo zokusebenza zangaphandle, lapho ukuchayeka ezimeni zemvelo ezinokhahlo kungalulaza ukusebenza kwezingubo zendabuko. Kungakhathaliseki ukuthi isetshenziswa ezingubo zezimoto, okokukhanda izimboni noma ekuqedeni kwezakhiwo, i-Desmodur RE idlala indima ebalulekile ekuthuthukiseni ukuphila isikhathi eside nokubukeka kwezindawo ezimboziwe.

Ngaphezu kwendima yayo ekugqokeni, i-Desmodur RE iphinde isetshenziswe ekukhiqizeni okunamathelayo kwekhwalithi ephezulu. Izakhiwo zayo zokwelapha ngokushesha kanye nokunamathela okuhle kakhulu ezinhlobonhlobo zama-substrates kuyenza ibe isithako esibalulekile ezintweni zokunamathisela ezakhiweni, izinamatheliso ezi-laminating kanye nokwakhiwa kwama-sealant. Izinamathiselo ze-Desmodur RE ziyakwazi ukumelana nokucindezeleka kwemishini kanye nezici zemvelo, okuzenza zibe yisinqumo sokuqala sokufuna izicelo zokubopha ezimbonini ezahlukene.

Ngaphezu kwalokho,I-Desmodur REinikeza abenzi befomula ikhono lokuhlanganisa kalula izakhiwo ze-polyurethane coatings nama-adhesives ngokwezidingo ezithile. Ngokulungisa izilinganiso zokubunjwa nokuhlanganisa i-Desmodur RE, izici ezihlukahlukene zokusebenza zingafinyelelwa, okuhlanganisa ubulukhuni, ukuguquguquka nokuphikiswa kwamakhemikhali. Leli zinga lokwenza ngokwezifiso lenza abakhiqizi bakwazi ukuhlangabezana nezidingo ezahlukahlukene zabasebenzisi bokugcina emikhakheni esukela kwezezimoto kanye ne-aerospace kuya kwezokwakha nengqalasizinda.

Kubalulekile ukuqaphela ukuthi ngenkathiI-Desmodur REinikeza izinzuzo eziningi mayelana nokusebenza kanye nokuguquguquka, ngenxa yesimo sokusebenza sama-isocyanate, ukuphatha okufanele kanye nezinyathelo zokuphepha kufanele zibhekwe. Ukuchayeka kuma-isocyanate kungase kube yingozi empilweni, ngakho-ke kubalulekile ukulandela imihlahlandlela yokuphepha enconyiwe futhi usebenzise okokuvikela komuntu siqu lapho uphatha i-Desmodur RE neminye imikhiqizo esekwe yi-isocyanate.

Ngokufigqiwe,I-Desmodur REiyisithako esibalulekile ekwakhiweni kwezigqoko ze-polyurethane ezisezingeni eliphezulu nezinamatheliso. Ukuqina kwayo okukhethekile, ukumelana ne-UV kanye nokuguquguquka kuyenza ibe isithako esibaluleke kakhulu ekukhiqizeni okokunamathela nokunamathiswa kwezinhlelo zokusebenza ezihlukahlukene. Ngokuqonda ukusetshenziswa kanye nezinzuzo zeI-Desmodur RE, abakhiqizi nabasebenzisi bokugcina bangasebenzisa amandla abo okudala imikhiqizo eqinile, ehlala isikhathi eside futhi ephezulu ye-polyurethane. Kodwa-ke, lapho usebenza ngemikhiqizo ye-isocyanate, kubalulekile ukubeka phambili izinyathelo zokuphepha ukuze kuqinisekiswe inhlalakahle yabasebenzi kanye nemvelo.