I-Polyurethane ibisoloko iqatshelwa njengesixhobo esiguquguqukayo kakhulu, kwaye ukuguquguquka kwayo kuyenza ibe lukhetho olufanelekileyo kwiintlobo ngeentlobo zezicelo zoshishino, ngakumbi kwiCoatings, Adhesives, Sealants, kunye neElastomers (CASE). Ezi zicelo zifuna ii-catalysts ezisebenzayo eziphezulu ezinokuphucula i-reaction kinetics ngelixa ziqinisekisa ukusebenza okuphezulu kwemveliso. Kubavelisi beenkqubo ze-polyurethane, ukukhetha i-catalyst efanelekileyo kubalulekile ekulinganiseni ukusebenza kakuhle, ukhuseleko, kunye nobude bexesha lemveliso.
Uluhlu lwethu lwee-catalysts ze-polyurethane ezisebenza kakuhle zibonelela ngezisombululo ezenzelwe iimfuno ezithile zezicelo ze-CASE, zinceda abaqulunqi ukuba bafumane iipropati ezintle ezifana nokunamathela, ukuguquguquka, kunye nokumelana nezinto ezingqongileyo. Phakathi kwee-catalysts zethu eziphambili,I-MXC-R70I-(2-(2-dimethylaminoethoxy)ethanol, CAS 1704-62-7) ibalasele ngokusabela kwayo kunye nokufaneleka kwayo kwiintlobo ngeentlobo zefoam kunye neemveliso ze-elastomeric.
Indima kaIikhatalystkwizicelo zeCASE
IiCatalysts zisebenza njengomqolo weempendulo zeekhemikhali eziguqula iifomyula ze-polyurethane ezingamanzi zibe ziimveliso ezihlala ixesha elide nezisebenza kakuhle. Zikhawulezisa zombini iimpendulo zokuvuthela (ukuvuthela) kunye nokuphilisa (ukugalela), ziqinisekisa ukuba imveliso yokugqibela ineempawu zoomatshini nezomzimba ezifunekayo.
Kwizicelo ze-CASE, oku kuthetha ukuphucula izinto ezibalulekileyo ezifana nezi:
- Ukunamathela: Ukuqinisekisa unxibelelwano oluqinileyo phakathi kwemiphezulu, nto leyo ebalulekileyo kwizincamathelisi nakwizitywini.
- Ukuguquguquka kunye nokuqina: Ukufikelela ekuthambekeni okuhlala ixesha elide kunye nokumelana nokuguguleka kwi-elastomers.
- Umphezulu wokugqiba: Ukuphucula ukufana kunye neempawu zobuhle beengubo.
- Ukusebenza kakuhle kokucubungula: Ukulungiselela imijikelo yemveliso ekhawulezayo kunye namaxesha okulungisa aphuculweyo.
Izicelo eziphambili zeI-MXC-R70mhlawumbi
I-MXC-R70, i-volatible amine catalyst, idlala indima ebalulekileyo ekuveliseni iimveliso ezahlukeneyo ezisekwe kwi-polyurethane, kubandakanya ii-microcellular foams kunye nee-elastomers. Ukusebenza kwayo okuphezulu kuyenza ifaneleke ngakumbi kwiifom ze-vinyl foam ezifana needeshibhodi zeemoto kunye nee-headrests, apho kufuneka ukuchaneka kunye nokuqina. Ngokukhuthaza ukuphiliswa ngokukhawuleza ngaphandle kokuphazamisa ukuguquguquka kunye nentuthuzelo ye-foam, i-MXC-R70 ibalulekile kwizicelo ezifuna ukusebenza okuphezulu kunye nentuthuzelo.
Iimpawu eziphambili zeMXC-R70:
- Ukusebenza kwakhona okuphezulu: Ivumela amaxesha okusabela asebenzayo nakhawulezayo kwiinkqubo zokukhupha amagwebu kunye nokunyanga.
- Izicelo ezininzi: Ilungele ukusetyenziswa ngeendlela ezahlukeneyo, ukusuka kwi-microcellular foams ukuya kwi-elastomers, inika iipropati zomzimba ezintle kakhulu kwisicelo ngasinye.
- Ubuthi obuphantsi: Inciphisa ukuxhomekeka kwii-catalysts zesinyithi ezinobuthi ezifana ne-dibutyltin, iqinisekisa iinkqubo zemveliso ezikhuselekileyo kubasebenzi nakubavelisi.
Ukunciphisa Ukuvezwa Kwizinto Ezinobuthi Ezibangela Ityhefu
Ingxaki ekhulayo kwishishini le-polyurethane kukunciphisa ukuvezwa kwii-catalysts zesinyithi ezinobuthi ezifana ne-dibutyltin. Uluhlu lwethu olutsha lwee-catalysts, kuquka i-MXC-R70, lubonelela ngenye indlela ekhuselekileyo ngokunciphisa okanye ukuphelisa imfuneko yezi zinto ziyingozi. Oku akuphuculi nje kuphela ukhuseleko kwindawo yokusebenza kodwa kuhambelana nemithetho yokusingqongileyo eguqukayo kunye neemfuno zabathengi zeemveliso ezicocekileyo neziluhlaza.
Isiphelo
Ixesha leposi: Matshi-11-2025