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Indlela yokukhetha i-Polyurethane Metal Catalyst efanelekileyo kwisicelo sakho
Ngaba uzama ukulinganisela i-reactivity kunye nobomi bembiza, okanye ukhetha phakathi kwe-tin kunye ne-bismuth catalyst kwinkqubo yakho ye-polyurethane? Ukhetho olufanelekileyo lwe-catalyst lubalulekile ekufezekiseni iipropati ze-foam ezifunekayo, ukusebenza kakuhle kokucubungula, kunye nokuthobela imithetho. Le bhlog iza kukukhokela ngaphantsi...Funda ngokugqithisileyo -
I-TMEDA Catalyst (CAS 110-18-9): Iipropati, Usetyenziso kunye neenzuzo kwiinkqubo ze-Polyurethane Foam
I-MOFAN TMEDA (N,N,N',N'-tetramethylethylenediamine, CAS 110-18-9) sisincedisi se-amine esicocekileyo kakhulu esenzelwe iinkqubo zorhwebo zokwenza i-foam. Le khemikhali iguquguqukayo isebenza njengesincedisi sokuvuthela kunye ne-gelling ngexesha lokucubungula i-polyol yolwelo. Inkqubo...Funda ngokugqithisileyo -
IiPolyols ezikhethekileyo: Isikhokelo esipheleleyo seeNdidi, iiPropati kunye nezicelo
Kwikhemistri yepolymer, iipolyols ezikhethekileyo zisebenza njengeebhloko zokwakha ezibalulekileyo. Amaqela eHydroxyl asabela kunye nee-isocyanates ukwenza unxibelelwano oluqinileyo lwe-urethane. I-MOFAN ivelisa uthotho lwe-polyether yobuchwephesha kunye ne-polyethylene glycols ephezulu (PEG) kwiinkqubo zoshishino. Iinjineli zeekhemikhali zisebenzisa ezi compone...Funda ngokugqithisileyo -
Isikhokelo soYilo lwePolyester Polyol Formulation: Ukusuka ekuKhethweni kweMonomer ukuya kwiNkqubo yokwenziwa
Ukuqonda iKhemistri Esemva kwePolyester Polyols eSebenza ngokuPhezulu kwizicelo zePolyurethane I-polyester polyol yenye yezinto eziphambili ezisetyenziswa kwiinkqubo ze-polyurethane (PU), kubandakanya i-polyurethane ethwala amanzi, ii-polyurethane elastomers, iingubo, izincamathelisi, ulusu oluyilwe, kunye nezinye...Funda ngokugqithisileyo -
I-TEDA Catalyst: Iipropati, Usetyenziso kunye neSikhokelo sabaNiki
I-catalyst ye-TEDA, eyaziwa ngokwekhemikhali njenge-triethylenediamine (CAS 280-57-9), ibalulekile kwimveliso ye-polyurethane foam. I-Triethylenediamine isebenza njenge-catalyst, ikhawulezisa zombini ii-gelling kunye ne-blowing reactions. I-MOFAN TEDA ivelele njenge-high-per...Funda ngokugqithisileyo -
I-DMCHA Catalyst: Iipropati, iiNkqubo kunye neSikhokelo sabaThengisi
I-DMCHA yinxalenye ebalulekileyo ekwenzeni izinto ze-polyurethane. Iinkampani zisebenzisa i-DMCHA ukukhawulezisa iintshukumo kwiinkqubo ze-polyurethane. Ezi nkqubo ziquka ukugquma i-foam eqinileyo kunye nezinye iimveliso zeefektri. Ii-catalysts ze-polyurethane amine ezifana ne-DMCH...Funda ngokugqithisileyo -
I-Polyurethane Catalyst: Isikhokelo esipheleleyo seeNdidi, iiMisebenzi kunye neeNkqubo
I-polyurethane catalyst yinto ekhawulezisa ukusabela kweekhemikhali kwimveliso ye-polyurethane. Abavelisi baxhomekeke kwi-catalysts ukunciphisa amaxesha okusabela, ukuphucula ukuhambelana, kunye neempawu zolawulo ezifana nokuqina kunye nokuguquguquka. Uphawu...Funda ngokugqithisileyo -
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 -
Ngokwembono yeTriazine Chemistry: Kutheni Izinto Ezithintela Ilangatye Ezisekelwe kwiNitrogen Zikhetha iTriazine
Abantu abaninzi banombuzo xa beqala ukudibana nezinto ezithintela ilangatye ezine-nitrogen: Ekubeni ukuthintelwa komlilo kufuna "i-nitrogen", kutheni le nto ishishini ekugqibeleni likhetha kakhulu isakhiwo se-"triazine ring", endaweni ye-simpler amines, urea, i-guanidine...Funda ngokugqithisileyo
