Kuyini i-Metal Catalyst?
A i-catalyst yensimbiiyinhlanganisela equkethe ama-athomu ensimbi ekhuthaza ukusabela kwamakhemikhali ngaphandle kokudliwa kule nqubo. Ekukhiqizweni kwe-polyurethane, ama-catalyst ensimbi asheshisa ukusabela okubalulekile njengokwakheka kwe-urethane (ukusabela kwe-polyol-isocyanate) kanye ne-urea (ukusabela kwamanzi-isocyanate). Ama-catalyst ensimbi athuthukisa ukusebenza kahle, anciphisa isikhathi sokukhiqiza, futhi aqinisekise izakhiwo zomzimba nezamakhemikhali ezifiselekayo ze-polyurethane foam.
Ukuhlukaniswa kwama-Metal Catalysts
Ama-catalyst ensimbi ahlukaniswa kabanzi ngokusekelwe ekwakhekeni kwawo kwamakhemikhali, ukusebenza kwawo, kanye nohlobo oluthile lwensimbi. Ngezansi kunezigaba ezibalulekile:
1. Ama-Catalyst Asekelwe Ku-Tin
Isibonelo: I-MXC-T12(DBTDL)I-Dibutyltin dilaurate, i-Tin octoate.
Izicelo: Kusetshenziswa kabanzi kuma-polyurethane foam, ezimbozweni, ezinamathelayo, nasezivaleni.
Izakhiwo: Umsebenzi ophezulu wokuvuselela ukusabela kwe-polyol-isocyanate. Ngokuvamile kuhlotshaniswa nokukhathazeka ngemvelo kanye nobuthi.
2. Ama-Catalyst Asekelwe ku-Bismuth
Isibonelo: I-MXC-B20 (i-Bismuth carboxylate catalyst).
Izicelo: Okunye esikhundleni sama-catalyst asekelwe ku-tin kuma-foam aqinile futhi aguquguqukayo.
Izakhiwo: Ayinabo ubuthi futhi inobungani nemvelo. Isebenza kahle ekusetshenzisweni okudinga iphunga eliphansi kanye nokukhishwa okuphansi komoya. Ikhuthaza ukuqina okuhle kakhulu ngemuva kanye nokwakheka kwe-viscosity okubambezelekile.
3. Ama-Catalyst Asekelwe ku-Zinc
Isibonelo: I-Zinc neodecanoate.
Izicelo: Amagwebu aguquguqukayo, ama-elastomer, kanye nezingubo zokumboza.
Izakhiwo: Izindleko eziphansi kanye nomsebenzi omncane wokuvuselela. Ngokuvamile isetshenziswa ekwakhiweni lapho kudingeka khona ukukhetha okuphezulu.
4. Ama-Catalyst Asekelwe ku-Titanium
Isibonelo: Ama-alkoxide e-titanium.
Izicelo: Izimbozo, izinto zokuvala, kanye nezinamathelisi.
Izakhiwo: Umsebenzi onamandla wokuvuselela ukusabela okuthile. Akuvamile kakhulu kwi-polyurethane foam ngenxa yezindleko eziphakeme.
5. Ama-Catalyst e-Bismuth-Tin noma e-Mixed-Metal
Isibonelo: Inhlanganisela ye-bismuth kanye ne-tin catalysts.
Izicelo: Kusetshenziswa ukulinganisela ukusebenza kanye nezindleko ngenkathi kunciphisa ubuthi.
Izakhiwo: Imiphumela yokusebenzisana ukuthuthukisa amaphrofayili athile okusabela.
6. Ezinye Izithasiselo Zensimbi
Izibonelo: Ama-catalyst asekelwe ku-aluminium, i-cobalt, i-manganese, noma i-iron.
Izicelo: Ukusetshenziswa okukhethekile kwe-niche ekumbozeni noma kuma-elastomer.
Izakhiwo: Nikeza izinzuzo eziyingqayizivele njengokuqina kwezinga lokushisa eliphezulu noma ukukhetha okuthile kokusabela.
I-MXC-B20: I-Bismuth Carboxylate Catalyst njenge-substitute esekelwe ku-Tin
I-MXC-B20 iyi-i-catalyst yensimbi ye-bismuth carboxylateYakhelwe njengendlela ehlukile enobungani nemvelo esikhundleni sezinto zokukhiqiza ezisekelwe ethini zendabuko. Isetshenziswa kuma-polyurethane foam ukukhuthaza:
- Ukwakheka Kokuqina Okubambezelekile
inikeza ukulawula okungcono phakathi nezigaba zokuqala zokwakheka kwegwebu. - Ukwelashwa Okuthuthukisiwe Kwe-Back-End: Iqinisekisa izakhiwo zokugcina eziqinile ngaphandle kokubeka engcupheni ukuzinza kokucubungula.
- Ubungane Emvelweni: Ayinazo izakhi ze-mercury, i-lead, kanye ne-tin, ihambisana nemithetho eqinile yezemvelo.
- Ukuguquguquka:Ihambisana nama-polyol aqinile nathambile, okwenza kube lula ukusetshenziswa kwawo kuma-foam aqinile, ama-foam aqinile, kanye nezinhlelo ezinama-microporous.
Izinzuzo ze-Bismuth Catalysts kune-Tin Catalysts
Ubuthi obuphansi kanye nomthelela ophansi emvelweni. Iphunga eliphansi kanye nokukhishwa komoya emkhiqizweni wokugcina. Ukuqina okuphezulu ekwakhekeni kwamanzi.
Ekuphetheni, ama-catalyst ensimbi afana ne-MXC-B20 adlala indima ebalulekile ekuthuthukiseni ukukhiqizwa kwe-polyurethane okusimeme nokusebenza kahle ngokunikeza ezinye izindlela esikhundleni sezinhlelo zendabuko ezisekelwe ku-tin.
Isikhathi sokuthunyelwe: Novemba-26-2024