I-Desmodur RE, eyaziwa ngokuba yi-CAS 2422-91-5, iyikhompawundi eguquguqukayo kwaye isetyenziswa ngokubanzi. Ngenxa yokusebenza kwayo okugqwesileyo kunye neenzuzo, isetyenziswe ngokubanzi kumashishini ahlukeneyo. Kweli nqaku, siphonononga ukusetyenziswa kweDesmodur kwaye sifumanise ukuba kutheni ithandwa kangaka ngabavelisi.
I-Desmodur RE yeyosapho lwee-disocyanates ezinevumba elimnandi, iikhompawundi ezisetyenziswa ngokubanzi kwimveliso ye-polyurethane yokwambathisa, izinto zokuncamathelisa kunye ne-elastomers. Lulwelo olumthubi olukhanyayo ukuya kwe-amber oluquka umxube we-isomer ezinemichiza efanayo. Isithako esiphambili se-Desmodur RE yi-toluene diisocyanate (TDI), esetyenziswa ngokubanzi kwimveliso ye-polyurethane foam.
Enye yosetyenziso oluphambili lweDesmodur REikwimveliso ye polyurethane coatings. Iingubo zePolyurethane zibonelela ngokhuseleko olugqwesileyo kumhlwa, kwimozulu kunye nokugruzuka. Baziwa ngokuhlala kwabo okuphezulu kunye nokusebenza okugqwesileyo kwiindawo ezinzima. I-Desmodur RE yinxalenye ephambili kolu qulunqo lwe-coating, lubanika ukwanda kobunzima, ukunamathela kunye nokuxhathisa imichiza.
Esinye isicelo esibalulekileyo se-Desmodur RE kukuveliswa kwe-polyurethane adhesives. Izinto zokuncamathelisa iPolyurethane zisetyenziswa kakhulu kwimizi-mveliso yeemoto, yokwakha kunye nefenitshala ngenxa yamandla abo aphezulu ebhondi kunye nokuguquguquka. I-Desmodur RE iphucula ukomelela kwebhondi ye-polyurethane encamathelayo, ebavumela ukuba babambelele kwii-substrates ezahlukeneyo ezifana nentsimbi, iplastiki kunye neenkuni. Oku kubenza balungele ukusetyenziswa kwe-lamination, ukudibanisa kunye nokutywinwa.
I-Desmodur RE ikwasetyenziswa kwimveliso ye-polyurethane elastomers. I-polyurethane elastomers ibonisa iimpawu ezintle zoomatshini ezifana nokunwebeka okuphezulu, ukuxhathisa ukukrazula kunye nokuxhathisa ukukrazula. Zisetyenziswa kumashishini afana nezihlangu, iimoto kunye nemveliso yemizi-mveliso. I-Desmodur RE idlala indima ebalulekileyo ekudityanisweni kwezi elastomers, ibanika amandla abalaseleyo okuqina kunye neempawu zobude.
Ngaphezu koko,Desmodur REiyaziwa ngeempawu zayo zokunyanga ngokukhawuleza. Oku kuthetha ukuba inokukhawuleza ukuwela ikhonkco kunye neepolyols ukwenza inethiwekhi ye-polyurethane eyomeleleyo. Ukunyanga ngokukhawuleza kunqweneleka kakhulu kumashishini afuna amaxesha okutshintsha ngokukhawuleza, afana nemizi-mveliso yeemoto okanye yokwakha. Ukongeza, i-Desmodur RE inokuhambelana kakuhle kunye noluhlu olubanzi lwee-polyols, ezivumela abavelisi ukuba balungelelanise iimpawu zeemveliso zabo kwiimfuno ezithile.
Ukuqukumbela, i-Desmodur RE (i-CAS 2422-91-5) yinto esetyenziswa ngokubanzi kunye nezicelo ezibanzi kumashishini afana neengubo, i-adhesives kunye ne-elastomers. Iimpawu zayo ezikhethekileyo, kubandakanywa ubulukhuni obuphuculweyo, ukunamathela kunye nonyango olukhawulezayo, lwenza kube lukhetho oludumileyo phakathi kwabavelisi. Ingaba ibonelela ngokhuseleko lokutya ngokusebenzisa i-polyurethane coatings, ukufikelela kwiibhondi ezomeleleyo kwi-adhesives, okanye ukuphucula iimpawu zemishini ye-elastomers, i-Desmodur RE ibonakalise ukuba yinto ebalulekileyo ekuvelisweni kwezinto eziphezulu zokusebenza.
Ixesha lokuposa: Aug-18-2023