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Izindlela ezintathu i-tertiary amine catalyst ekhulisa ngazo isivinini sokufakwa kokushisa
I-MOFAN TMR-2, eyaziwa ngenombolo 62314-25-4, ivelele njenge-amine catalyst esheshisa ukufakelwa kwamapayipi ngezenzo ezintathu eziyinhloko: ukuqala kokusabela okusheshayo, ukwandiswa kwe-foam okuthuthukisiwe, kanye nokuqina okusheshayo. Le catalyst ixhumana namaqembu e-isocyanate, yandisa ukusabela kwawo futhi yenza ...Funda kabanzi -
Inqubo yokukhiqiza isikhumba se-polyurethane
Isilinganiso se-Polyol ne-isocyanate: I-Polyol inenani eliphezulu le-hydroxyl kanye nesisindo esikhulu sama-molecule, okuzokwandisa ubuningi bokuxhumanisa futhi kusize ekuthuthukiseni ubuningi be-foam. Ukulungisa inkomba ye-isocyanate, okungukuthi, isilinganiso se-molar se-isocyanate ku-hydrogen esebenzayo ku-po...Funda kabanzi -
Ucwaningo nge-polyurethane adhesive yokupakisha okuguquguqukayo ngaphandle kokushisa okuphezulu
Uhlobo olusha lwe-polyurethane adhesive lwalungiswa ngokusebenzisa ama-polyacid amancane e-molecule kanye nama-polyol amancane e-molecule njengezinto eziyisisekelo zokulungisa ama-prepolymer. Ngesikhathi senqubo yokwelulwa kweketanga, ama-polymer ahlanganisiwe kanye nama-trimer e-HDI afakwa ku-polyuretha...Funda kabanzi -
Umklamo osebenza kahle kakhulu wama-polyurethane elastomers kanye nokusetshenziswa kwawo ekukhiqizeni okusezingeni eliphezulu
Ama-elastomer e-polyurethane ayisigaba esibalulekile sezinto ze-polymer ezisebenza kahle kakhulu. Ngezakhiwo zawo ezihlukile zomzimba nezamakhemikhali kanye nokusebenza okuhle kakhulu okuphelele, athatha isikhundla esibalulekile embonini yanamuhla. Lezi zinto zisetshenziswa kabanzi...Funda kabanzi -
I-polyurethane engeyona i-ionic esuselwe emanzini enokukhanya okuhle okusheshayo kokusetshenziswa ekuqedeni isikhumba
Izinto zokumboza ze-polyurethane zithambekele ekubeni phuzi ngokuhamba kwesikhathi ngenxa yokuchayeka isikhathi eside ekukhanyeni noma ekushiseni kwe-ultraviolet, okuthinta ukubukeka kwazo kanye nokuphila kwazo. Ngokufaka i-UV-320 kanye ne-2-hydroxyethyl thiophosphate ekwandisweni kweketanga le-polyurethane, okungeyona i-ion...Funda kabanzi -
Ingabe izinto ze-polyurethane zibonisa ukumelana namazinga okushisa aphezulu?
1 Ingabe izinto ze-polyurethane ziyamelana namazinga okushisa aphezulu? Ngokuvamile, i-polyurethane ayimelani namazinga okushisa aphezulu, ngisho noma inesistimu ye-PPDI evamile, umkhawulo wayo wokushisa ophezulu ungaba cishe ku-150° kuphela. Izinhlobo ze-polyester noma ze-polyester ezijwayelekile zingase zingakwazi...Funda kabanzi -
Ochwepheshe Bomhlaba Wonke Be-Polyurethane Bazohlangana e-Atlanta eNgqungqutheleni Yobuchwepheshe Be-Polyurethanes ka-2024
I-Atlanta, GA – Kusukela mhla zingama-30 kuMandulo kuya kumhla zi-2 kuMfumfu, i-Omni Hotel eCentennial Park izosingatha iNgqungquthela Yobuchwepheshe be-Polyurethanes ka-2024, ihlanganisa ochwepheshe abaphambili kanye nochwepheshe abavela embonini ye-polyurethane emhlabeni jikelele. Ihlelwe yi-American Chemistry Council...Funda kabanzi -
Inqubekela phambili Yocwaningo Nge-Non-Isocyanate Polyurethanes
Kusukela kwethulwa ngo-1937, izinto ze-polyurethane (PU) ziye zasetshenziswa kabanzi emikhakheni eyahlukene okuhlanganisa ezokuthutha, ezokwakha, amakhemikhali kaphethiloli, izindwangu, ubunjiniyela bemishini nogesi, izindiza, ezempilo kanye nezolimo. Lezi...Funda kabanzi -
Ukulungiswa kanye nezici ze-polyurethane semi-rigid foam ze-handrails zezimoto ezisebenza kahle kakhulu.
Indawo yokubeka ingalo ngaphakathi emotweni iyingxenye ebalulekile ye-cab, edlala indima yokusunduza nokudonsa umnyango nokubeka ingalo yomuntu osemotweni. Uma kwenzeka isimo esiphuthumayo, lapho imoto kanye ne-handrail zishayisana, i-polyurethane soft handrail...Funda kabanzi -
Izici Zobuchwepheshe Zokufafaza Insimu Ye-Polyurethane Eqinile Ye-Foam
Izinto zokufaka i-polyurethane (PU) eziqinile ziyi-polymer eneyunithi yesakhiwo ephindaphindayo yesigaba se-carbamate, eyakhiwe ukusabela kwe-isocyanate ne-polyol. Ngenxa yokufakwa kwayo okuhle kakhulu kokushisa kanye nokusebenza kwayo okungangeni manzi, ithola ukusetshenziswa okubanzi ngaphandle...Funda kabanzi -
Ukwethulwa kwe-ejenti yokwenza igwebu le-polyurethane eqinile esetshenziswa ensimini yokwakha
Njengoba izidingo zezakhiwo zesimanje zokonga amandla nokuvikela imvelo ziyanda, ukusebenza kokuvikela ukushisa kwezinto zokwakha kuba okubaluleke kakhulu. Phakathi kwazo, i-polyurethane rigid foam iyinto enhle kakhulu yokuvikela ukushisa,...Funda kabanzi -
Umehluko phakathi kwe-Polyurethane Esekelwe Emanzini kanye ne-Polyurethane Esekelwe Kumafutha
Isembozo esingangeni manzi se-polyurethane esekelwe emanzini siyinto engangeni manzi enobungani nemvelo enama-molecule aphezulu e-polymer enamathelayo futhi enamathela kahle futhi engenakungenwa. Sinamathela kahle ezintweni ezisekelwe kusimende ezifana nokhonkolo, amatshe kanye nemikhiqizo yensimbi. Umkhiqizo...Funda kabanzi
