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Isikhokelo Sokwenziwa kwePolyurethane: Ukusuka kuYilo lweeMolekyuli ukuya kuLungiso lokuSebenza
Funda indlela eziyilwe ngayo iifomyula ze-polyurethane kusetyenziswa ii-polyols, ii-isocyanates, ii-catalysts, ii-blowing agents, kunye nezongezo. Fumanisa indlela ulwakhiwo lwe-molecular olumisela ngayo ukusebenza kwi-foam, ii-coating, ii-elastomers, kunye nee-adhesives. ...Funda ngokugqithisileyo -
Iziphene ezintathu eziqhelekileyo zePolyurethane: iiPinholes, iiCrinkage Cavities, kunye neeFlow Marks — Iingcambu zeMpembelelo kunye nezisombululo zobuNjineli
Kutheni Ezi Ziphene Zihlala Zivela Kwimveliso Kwiinkqubo zokubumba nokubumba i-polyurethane, imingxuma ye-pinhole, imingxuma yokushwabana, kunye neempawu zokuhamba ziphakathi kweziphene eziphindaphindayo kumphezulu kwiinkqubo ze-polyurethane eziguquguqukayo neziqinileyo...Funda ngokugqithisileyo -
Indlela i-Viscosity kunye ne-Elasticity eziguquka ngayo ngexesha le-Polyurethane Foam Foam
Kutheni Ukuziphatha Kwe-Viscoelastic Kubalulekile Kwimveliso Ye-Polyurethane Foam Ukusebenza kwe-polyurethane foam kunxulumene ngokusondeleyo nokuguquka kwe-viscosity kunye nokuguquguquka ngexesha lenkqubo ye-foam. Nokuba kuveliswa i-foam eguquguqukayo, i-rogid insulation foam, okanye i-polyurethane ekhethekileyo ...Funda ngokugqithisileyo -
Inyaniso Engasemva Kweengxaki Zokubopha Iipaneli zePolyurethane Kwiinkqubo Ezitshisiweyo ZePentane Nendlela Yokuzisombulula
01. Intshayelelo: Indlela iPaneli enye eDelaminated eyakhokelela ngayo kwilahleko enkulu Kwiworkshop yemveliso yomenzi wezinto zokwakha omkhulu, iipaneli zesandwich ze-polyurethane ezisandula ukuveliswa ezenziwe ngesinyithi zabekwa kakuhle emva kokushiya i-continuous ...Funda ngokugqithisileyo -
Ngaba Unayo I-Leaks? IiCatalysts zePolyurethane Amine Ezinokunceda Njani
Ukuvuza kwamanzi aqinileyo kwikhonkrithi nakwizakhiwo zamatye kufuna isisombululo esiphambili. Impembelelo yemali yemicimbi enjalo ibalulekile. Ngokutsho kwe-American Insurance Association, ukuvuza kwamanzi kubangela ukulahleka kwepropathi okungaphezulu kwe-$10 yeebhiliyoni ngonyaka. Impendulo ikwii-grouts zanamhlanje ze-polyurethane. Ezi ...Funda ngokugqithisileyo -
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
