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Iindlela ezi-3 ze-tertiary amine catalyst ezonyusa isantya sokukhusela
I-MOFAN TMR-2, eyaziwa ngenombolo 62314-25-4, ivelele njenge-amine catalyst ephezulu ekhawulezisa ukufakelwa kwepayipi ngezenzo ezintathu eziphambili: ukuqala kokusabela ngokukhawuleza, ukwandiswa kwefoam okuphuculweyo, kunye nokuphiliswa ngokukhawuleza. Le catalyst isebenzisana namaqela e-isocyanate, inyusa ukwenziwa kwayo kwaye yenza ...Funda ngokugqithisileyo -
Inkqubo yokuvelisa ulusu lwe-polyurethane
Umlinganiselo wePolyol kunye ne-isocyanate: IPolyol inexabiso eliphezulu le-hydroxyl kunye nobunzima obukhulu be-molecular, eya kunyusa uxinano lwe-crosslinking kwaye incede ekuphuculeni uxinano lwe-foam. Ukulungisa i-isocyanate index, oko kukuthi, umlinganiselo we-molar we-isocyanate kwi-hydrogen esebenzayo kwi-po...Funda ngokugqithisileyo -
Funda nge-polyurethane adhesive yokupakisha eguquguqukayo ngaphandle kokupholisa ubushushu obuphezulu
Uhlobo olutsha lwe-polyurethane adhesive lwalungiswa ngokusebenzisa ii-polyacids zemolekyuli encinci kunye nee-polyols zemolekyuli encinci njengezinto ezisisiseko zokulungiselela ii-prepolymers. Ngexesha lenkqubo yokwandiswa kwetyathanga, ii-polymers ezine-hyperbranched kunye nee-HDI trimers zafakwa kwi-polyuretha...Funda ngokugqithisileyo -
Uyilo oluphezulu lwe-polyurethane elastomers kunye nokusetyenziswa kwazo kwimveliso ephezulu
Ii-elastomers zePolyurethane ziludidi olubalulekileyo lwezinto zepolymer ezisebenza kakuhle. Ngenxa yeempawu zazo zomzimba nezekhemikhali ezizodwa kunye nokusebenza okugqwesileyo, zithatha indawo ebalulekileyo kushishino lwanamhlanje. Ezi zinto zisetyenziswa kakhulu kwiindawo ezininzi...Funda ngokugqithisileyo -
I-polyurethane esekwe emanzini engeyiyo i-ionic enokukhanya okukhawulezayo okufanelekileyo kokusetyenziswa ekugqityweni kwesikhumba
Izinto zokugquma zePolyurethane zinokuba tyheli ngokuhamba kwexesha ngenxa yokuvezwa ixesha elide kukukhanya okanye kubushushu be-ultraviolet, okuchaphazela inkangeleko yazo kunye nobomi bazo benkonzo. Ngokufaka i-UV-320 kunye ne-2-hydroxyethyl thiophosphate kwi-chain extension ye-polyurethane, into engeyiyo...Funda ngokugqithisileyo -
Ngaba izinto ze-polyurethane ziyamelana namaqondo obushushu aphezulu?
1 Ngaba izinto ze-polyurethane ziyamelana namaqondo obushushu aphezulu? Ngokubanzi, i-polyurethane ayimelani namaqondo obushushu aphezulu, nokuba inenkqubo ye-PPDI eqhelekileyo, umda wayo wobushushu ophezulu unokuba malunga ne-150° kuphela. Iintlobo ze-polyester eziqhelekileyo okanye ze-polyether zisenokungakwazi...Funda ngokugqithisileyo -
Iingcali zePolyurethane zehlabathi ziza kuhlangana eAtlanta kwiNkomfa yoBugcisa yePolyurethanes ka-2024
I-Atlanta, GA – Ukususela nge-30 kaSeptemba ukuya kwi-2 ka-Okthobha, i-Omni Hotel eCentennial Park iza kubamba iNkomfa yoBugcisa bePolyurethanes ka-2024, idibanisa iingcali eziphambili kunye neengcali ezivela kushishino lwe-polyurethane kwihlabathi liphela. Iququzelelwe yi-American Chemistry Council...Funda ngokugqithisileyo -
Inkqubela yoPhando kwiPolyurethanes ezingezizo iSocyanate
Ukususela oko zaqaliswa ngo-1937, izixhobo ze-polyurethane (PU) zisetyenziswe kakhulu kumacandelo ahlukeneyo kuquka ezothutho, ulwakhiwo, iikhemikhali zepetroli, amalaphu, ubunjineli boomatshini nombane, i-aerospace, ukhathalelo lwempilo, kunye nezolimo. Ezi...Funda ngokugqithisileyo -
Ukulungiswa kunye neempawu ze-polyurethane semi-rigid foam kwi-handrails zezithuthi ezisebenza kakuhle.
Indawo yokubeka ingalo ngaphakathi emotweni yinxalenye ebalulekileyo yekhabhathi, edlala indima yokutyhala nokutsala ucango nokubeka ingalo yomntu osemotweni. Kwimeko yengxakeko, xa imoto kunye ne-handrail zingqubana, i-polyurethane soft handrail...Funda ngokugqithisileyo -
Iinkalo zobugcisa zokutshiza i-polyurethane field foam eqinileyo
Izinto zokugquma ze-polyurethane ene-foam eqinileyo (PU) yi-polymer eneyunithi yesakhiwo esiphindaphindayo se-carbamate segment, eyenziwe yi-reaction ye-isocyanate kunye ne-polyol. Ngenxa yokugquma kwayo okugqwesileyo kobushushu kunye nokusebenza kwayo okungangeni manzi, isetyenziswa ngokubanzi ngaphandle...Funda ngokugqithisileyo -
Ukwaziswa kwearhente yokwenza amagwebu kwi-polyurethane eqinileyo foam esetyenziswa kwintsimi yokwakha
Ngenxa yokwanda kweemfuno zezakhiwo zanamhlanje zokonga amandla kunye nokukhuselwa kokusingqongileyo, ukusebenza kwe-thermal insulation yezixhobo zokwakha kuya kuba yinto ebaluleke ngakumbi. Phakathi kwazo, i-polyurethane rigid foam sisixhobo esihle kakhulu se-thermal insulation,...Funda ngokugqithisileyo -
Umahluko phakathi kwePolyurethane esekwe emanzini kunye nePolyurethane esekwe kwiOyile
Ingubo engangeni manzi ye-polyurethane esekelwe emanzini sisixhobo esingangeni manzi se-polymer esineemolekyuli eziphezulu esinamathelayo nesingenamanzi esinamathelayo kakuhle kwaye asingeni manzi. Sinamathela kakuhle kwi-substrates ezisekelwe kwisamente ezifana nekhonkrithi, iimveliso zamatye nezesinyithi. Imveliso...Funda ngokugqithisileyo
