Ama-catalyst e-polyurethane adlala indima ebalulekile ekukhiqizweni kwama-polyurethane, esebenza njengamandla ashukumisayo ngemuva kokusabela kwamakhemikhali okwakha lezi zinto eziguquguqukayo. Phakathi kwama-catalyst ahlukahlukene atholakalayo, i-MXC-T120 ivelele njengenketho enamandla nephumelelayo yezinhlelo zokusebenza eziningi ze-polyurethane, kusukela ekufutheni i-foam kuya ku-polyurethane eqinile kanye nemikhiqizo yokubumba eguquguqukayo ephezulu. Ukuqonda umsebenzi wama-catalyst e-polyurethane kanye nezinzuzo zalokhuI-MXC-T120kubalulekile ekwenzeni ngcono izinqubo zokukhiqiza kanye nokufeza ukusebenza okuphezulu kwezinto ezibonakalayo.
I-catalyst, ngokuvamile, iyisithako esikhuphula izinga lokusabela kwamakhemikhali ngaphandle kokudliwa kule nqubo. Ngokwesimo sokukhiqizwa kwe-polyurethane, ama-catalyst abalulekile ekusheshiseni ukusabela phakathi kwama-polyol nama-isocyanates, izingxenye eziyinhloko ze-polyurethane. Lokhu kusabela, okwaziwa ngokuthi i-gelation, kwakha i-polymer matrix ye-polyurethane. I-MXC-T120, i-catalyst esekelwe ku-dibutyltin, isebenza kahle kakhulu ekwenzeni lula lokhu kusabela, inikeza umsebenzi ophezulu we-catalytic kanye nokuqina kwe-hydrolytic okuthuthukisiwe.
Omunye wemisebenzi eyinhloko yama-catalyst e-polyurethane afana ne-MXC-T120 ukulawula isikhathi se-gelling. Ngokusheshisa inqubo ye-gelation, ama-catalyst asiza ekwakheni inethiwekhi ye-polymer ezinzile ngokushesha nangendlela ephumelelayo. Lokhu kubaluleke kakhulu ekusetshenzisweni okufana nokufutha i-foam, lapho ukuqina okusheshayo kubalulekile ekugcineni isimo kanye nokuqina kwesakhiwo. Ngaphezu kwalokho, i-MXC-T120'Umsebenzi oqinile wokuvuselela uqinisekisa ukusebenza okulinganayo nokuthembekile kuzo zonke izinhlobo ezahlukene ze-polyurethane.
Ngaphandle kokulawula isikhathi sokugaya, ama-catalyst nawo adlala indima ebalulekile ekulinganiseni ukusabela okuseceleni, okuhlanganisa ukusabela kwamanzi nama-isocyanates ukwakha igesi ye-carbon dioxide (CO2). Lokhu kusabela kubalulekile enkambisweni yokugqwala, enikeza izakhiwo ezifiselekayo njengokushisa nokuvikela amagwebu e-polyurethane. Kodwa-ke, ukwakheka kwegesi ngokweqile kungaholela ezifweni kanye nekhwalithi yezinto ezibonakalayo ebucayi. I-MXC-T120 ihamba phambili ekuphatheni lokhu kusabela okuseceleni, iqinisekisa ibhalansi efanele phakathi kokwakheka kwe-polymer nokukhiqizwa kwegesi, okuholela kumagwebu ekhwalithi ephezulu anesakhiwo samaseli esifanayo.
Uma kuqhathaniswa nama-catalyst e-amine, atholakala ku-ammonia (NH3) futhi ahlukahluka ngomsebenzi ngokusekelwe esakhiweni sawo kanye nobunjalo bawo, i-MXC-T120 inikeza ukusebenza okuphezulu ngokuya ngokuzinza kwe-hydrolytic. Ama-catalyst e-amine, ikakhulukazi ama-amine e-tertiary, avame ukusetshenziswa ekukhiqizeni i-foam ngenxa yamandla awo okukhuthaza ukwakheka kwe-CO2. Kodwa-ke, angase futhi alethe ukuguquguquka nokuzwela kumswakama, okungase kuthinte ukuzinza kwezinto zesikhathi eside. I-MXC-T120, ngokwakheka kwayo kwe-dibutyltin, inikeza ukumelana okuthuthukisiwe ne-hydrolysis, iqinisekisa imikhiqizo ye-polyurethane eqinile futhi ezinzile ngisho nasezimweni zemvelo eziyinselele.
Ekuphetheni, i-i-catalyst ye-polyurethaneI-MXC-T120 iyisikhuthazi esinamandla nesiguquguqukayo esithuthukisa kakhulu ukusebenza kahle kanye nekhwalithi yokukhiqizwa kwe-polyurethane. Umsebenzi wayo ophezulu wokuvuselela, ukuzinza okuhle kakhulu kwe-hydrolytic, kanye nekhono lokulinganisela ukusabela okungekuhle kwenza kube ukukhetha okuhle kwezicelo ezahlukahlukene, kusukela ekufutheni igwebu kuya emikhiqizweni yokubumba eqinile neguquguqukayo. Ngokusebenzisa izinzuzo ze-MXC-T120, abakhiqizi bangafinyelela izinto ze-polyurethane ezinhle kakhulu ngokusebenza okuthuthukisiwe nokuqina.
Isikhathi sokuthunyelwe: Agasti-05-2024