Njengoko imithetho yokusingqongileyo yehlabathi iqina kwaye uzinzo luba yinto ephambili, abavelisi be-polyurethane foam baguqukela kwi-formulations eluhlaza ngakumbi nesebenza ngcono. Iindidi ezimbini eziphambili zeenkqubo ze-polyurethane spray foam zilawula eli shishini okwangoku:ifoam yokutshiza ye-polyurethane evuthuzwa ngamanzikwayeiinkqubo zokukhupha amagwebu ze-hydrofluoroolefin (HFO)Inkqubo nganye inika iimpawu ezahlukeneyo, iingenelo kunye nemingeni. Eli nqaku liza kuphonononga umahluko wazo kwaye ligxininise ukubaluleka kwezinto ezibangela ukungasebenzi kakuhle, ezifanaI-MXC-70, nto leyo enokuphucula ukusebenza kwefoam, ingakumbi xa kusenziwa izinto ezifuthwa ngamanzi.
Ukuqonda iiNkqubo zeFoam zePolyurethane ezitshizwa ngamanzi
Iinkqubo zefoam ze-polyurethane ezifuthwa ngamanzi zisebenzisa amanzi njenge-arhente yokufutha kunye ukuvelisa i-carbon dioxide (CO₂) ngokuphendula kunye ne-isocyanates. Le CO₂ isebenza njenge-arhente yokufutha ephambili, yandisa isakhiwo sefoam.
Iingenelo zeFoam yeSpray evuthuzwa ngamanzi:
- Indawo intle:Ekubeni amanzi engenalo igalelo ekuncipheni kongqimba lwe-ozone okanye ekufudumaleni kwehlabathi, le nkqubo ithathwa njengenye indlela enobuhlobo nokusingqongileyo.
- Isebenza kakuhle emalini:Amanzi afumaneka kakhulu kwaye angabizi kakhulu xa ethelekiswa nee-ejenti zokuvuthela ezenziwe ngokwenziwa.
- Ukuthobela iMithetho:Ihlangabezana nemimiselo yokusingqongileyo ethintela ukusetyenziswa kwee-GWP eziphezulu (i-global warming potential) ezivuthela umoya.
- Ukunamathela Okuphuculweyo:Le mpendulo idala unxibelelwano oluqinileyo phakathi kweziseko, nto leyo eyenza ukuba ifaneleke kwizicelo zokwakha.
Imingeni yeFoam yokutshiza evuthuzwa ngamanzi:
- Amaxabiso e-R asezantsi:Iifoam ezivuthuzwa ngamanzi zihlala zisebenza kakuhle ekukhuseleni (ii-R-values) kuneefoam ezisekelwe kwi-HFO.
- Ukwanda koBuqhophololo:Amagwebu anokuba nzima kwaye aqhekeke ngakumbi ngokuhamba kwexesha, nto leyo echaphazela ukuqina kwawo.
- Ubuthathaka obuphezulu bokufuma:Ukusebenza kunokutshintsha ngokwezinga lokufuma, nto leyo edinga ukwenziwa nokucutshungulwa ngononophelo.
Ukunyuka kweeNkqubo zeFoam eziSekelwe kwi-HFO
Iinkqubo zefoam ze-polyurethane ezitshizwa yi-HFO zisebenzisa i-hydrofluoroolefins (ii-HFO) njengesixhobo sokuvuthela isizukulwana esilandelayo. Ezi zinto zinika ukusebenza okuphezulu kokugquma ngelixa zigcina impembelelo ephantsi kwindalo esingqongileyo.
Iingenelo ze-HFO Spray Foam:
- Amaxabiso aphezulu e-R:Ukumelana okungcono kobushushu nge-intshi nganye yobukhulu, nto leyo eyenza ukuba ibe lukhetho oluhle kakhulu lokukhusela ubushushu ngendlela eyonga amandla.
- Ukukhutshwa okuphantsi komoya:Ii-HFO zine-GWP ephantsi kakhulu (ngesiqhelo ingaphantsi kwe-1), nto leyo enciphisa kakhulu impembelelo yokusingqongileyo.
-Umgangatho weFoam ophuculweyo:Iifoam ezisekelwe kwi-HFO zivelisa ulwakhiwo lweseli olucolekileyo nolufanayo, oluphucula iipropati zoomatshini kunye nokuqina.
-Ukuncipha kokuncipha:Ulwakhiwo lwee-closed-cell ze-HFO foams lunciphisa ukuncitshiswa, okuqinisekisa ukusebenza kwexesha elide.
Imingeni yee-HFO Spray Foams:
-Ixabiso Eliphezulu:Izinto eziluhlaza kunye neefomyula zihlala zibiza kakhulu kuneenkqubo ezivuthuzwa ngamanzi.
-Uvakalelo lweMichiza:Ukukhetha ngokuchanekileyo ii-catalysts kunye nee-surfactants kuyafuneka ukuze kuphuculwe ukuchacha nokusebenza.
Ukhetho lweCatalyst: Indima yeI-MXC-70kwiinkqubo ezivuthuzwa ngamanzi
Enye yeengxaki eziphambili zeenkqubo ze-polyurethane foam ezivuthuzwa ngamanzi kukufezekisaukunyanga nokunamathela okugudileyongelixa kunciphisa ivumba le-amine elingafunekiyo. Kulapho keI-MXC-70idlala indima ephambili.
Kutheni Ufanele Ukhethe i-MXC-70 Kwiinkqubo Ezivuthuzwa Ngamanzi?
-Ifomula yevumba eliphantsi:Ngokungafaniyo nee-amine catalysts zemveli, i-MXC-70 iyanciphisa kakhulu ivumba, nto leyo eyenza ukuba ilungele ukusetyenziswa ngaphakathi.
-Iprofayili ye-Smooth Rise:Iqinisekisa ukuba i-foam ilawulwa kwaye iprofayili yayo yokunyuka izinzile, ithintela ukuqhekeka kwe-foam kunye neziphene.
-Unyango oluphuculweyo lomphezulu:Iphucula inkqubo yokunyanga, nto leyo ebangela ukuba umphezulu wefoam ube mnye kwaye uhlale ixesha elide.
-Ukunamathela Okugqwesileyo:Yonyusa amandla okubopha phakathi kwefoam kunye ne-substrate, nto leyo ibalulekileyo ekwakheni nasekufakeni i-insulation.
-Ukuhambelana neenkqubo ezisekelwe emanzini:Yenzelwe ngokukodwa ukusebenza ngokufanelekileyo ngeefoam ze-polyurethane ezifakwe i-CO₂.
Isiphelo
Zombini iinkqubo zefoam ye-polyurethane spray ezivuthelwa ngamanzi kunye ne-HFO blowed zibonelela ngeenzuzo ezikhethekileyo kwiimfuno ezahlukeneyo zokukhusela nokuvelisa.Iinkqubo ze-HFOisiphoukusebenza kakuhle kobushushu, igwebu elivuthelwa ngamanziihlala ilukhetho olungabizi kakhulu nolunobuhlobo nokusingqongileyo. Ukukhetha i-catalyst efanelekileyo kubalulekile ukuze kuphuculwe ukusebenza kwe-foam, kwayeI-MXC-70lukhetho olubanzi lweiifomyula ezivuthuzwa ngamanzikunyeivumba eliphantsi, ukuchacha okuthambileyo, kunye nokunamathela okuphuculweyo.
Kubavelisi abafuna ukuphucula iinkqubo zabo ze-polyurethane foam, ukukhetha i-catalyst efanelekileyo kunokwenza umahluko omkhulu.Qhagamshelana nathi namhlanje ukuze ufunde okungakumbi malunga neMXC-70 kunye nendlela enokuyiphucula ngayo ifomyula yakho yefoam yokutshiza nge-polyurethane.
Ixesha lokuthumela: Epreli-01-2025