Intshayelelo
Kule minyaka yangoku,ii-catalysts ze-polyurethane ezingenavumba liphantsi ziye zaba yindlela yophuhliso kwishishini le-polyurethane. Ngenxa yemigangatho yokusingqongileyo yehlabathi engqongqo ngakumbi kunye nokukhula kwemfuno yabathengi yeendawo ezicocekileyo zangaphakathi, indlela yophuhliso lweii-catalysts ze-polyurethane ezikhupha umbane kancinci, ezinevumba eliphantsi ikhawuleza. Abavelisi beefoam eziguquguqukayo neziqinileyo, iipeyinti, izincamathelisi, kunye nezitywini okwangoku babeka phambili ii-catalysts ezidibanisa ukusebenza okuphezulu, i-VOC ephantsiskunyeububele kokusingqongileyo ngaphandle kokubeka emngciphekweni ukusabela ngendlela engafanelekanga.
Kutheni Ivumba Libalulekile Kwimveliso YePolyurethane
Ii-catalysts zemveli ze-amine, nangona zisebenza kakuhle ekukhuthazeni impendulo ye-polyurethane phakathi kwe-isocyanates kunye ne-polyols, zihlala zikhupha ii-volatible amines ngexesha lokuveliswa okanye emva kokuphiliswa. Ezi zinto zikhutshwayo zingakhokelela koku:
Sivumba elinamandla le-amines kwiimveliso ezigqityiweyo (ezifana neefoam kunye neengubo)
Ngaphakathi endliniiingxaki zomgangatho womoya
Umsebenziimiba yokuchasana nomthetho kunye nokuthobela imithetho
Ukuze kuhlangatyezwane neemfuno zangoku zempilo nezokusingqongileyo, amashishini atshintshela ngokukhawuleza kwi-iinkqubo ze-catalyst ezinevumba eliphantsi, eziguquguqukayo kancinciEzi catalysts zinciphisa ukukhutshwa komoya ngelixa zigcina ukusebenza kakuhle kokwenza igwebu kunye nokuphilisa.
Ukunyuka kweeCatalysts ze-Amine ezinuka kancinci
Ii-catalysts ze-polyurethane ezingenavumba liphantsi zenzelweukunciphisa ukuguquguquka kunye nokuphucula ukukhethaNgokutshintsha ulwakhiwo lwazo lweemolekyuli okanye ukungenisa amaqela asebenzayo asebenzayo, ezi catalysts zinokudibana ngeekhemikhali ne-polyurethane matrix, ngaloo ndlela zithintele ukuguquguquka kweekhompawundi ezivelisa ivumba.
Iitekhnoloji eziphambili kweli candelo ziquka:
Iikhatalyst ze-amine ezisebenzayoezidibanisa ngokudibeneyo kwi-polymer
Iikhatalyst ze-amine ezivaliweyongokukhululwa okulawulwayo ngexesha lokusabela
Iinkqubo ze-amine ezikhupha umoya ophantsikunye nozinzo oluphuculweyo lwe-hydrolytic
Umzekelo, izinto ezibangela uxinezeleko ezifana neMingxu New MaterialsI-MXC-R40 kwayeI-MXC-37 zenzelwe ngokukodwa ukubonisaivumba eliphantsi, ukusebenza okuphezulu, kunye neempawu zejeli ezi-foaming ezilinganiselayoZisetyenziswa kakhulu kwiamagwebu aqinileyo okutshiza, izixhobo zokukhusela izixhobo, amagwebu angaphakathi eemotokunye Iinkqubo ze-HFO.
Abaqhubi beNdalo kunye neMithetho
Izinto ezininzi zehlabathi zikhawulezisa ukwamkelwaii-catalysts ze-polyurethane ezingenavumba liphantsi:
Ngokuya kusandai-VOC eqinileyo (i-volatile organic compound) kunye nemigaqo yokukhupha ukungcola eYurophu, eMntla Melika, naseAsia.
Iziqinisekiso zozinzo (LEED, BREEAM, GREEGUARD) zikhuthaza ukusetyenziswa kwezinto ezicocekileyo.
Imfuno yabathengi Ifanitshala engenamoya ungcolileyo, oomatrasi, kunye neendawo zangaphakathi zeemoto ziyakhula.
Utshintsho kushishino oluya kwi-HFO kunye neenkqubo zokufutha amagwebu ezivuthuzwa ngamanzi, ezifuna ii-catalysts ezikhethiweyo ngakumbi.
Abavelisi abasebenzisaubuchwepheshe be-catalyst obukhupha ukungcola okuphantsi ayipheleli nje ekuhlangabezaneni neemfuno zomthetho kodwa ikwaphucula ixabiso lophawu kwaye ifumane ithuba lokukhuphisana kwiimarike zokuthumela ngaphandle.
Iingenelo Zokusebenzisa iiCatalysts zePolyurethane Ezingenavumba Lihle
Ukuphumezaiikhatalyst ezingenavumba liphantsiKwimveliso ye-polyurethane, kukho izibonelelo ezininzi:
Ivumba eliphantsi kwiimveliso zefoam ezigqityiweyo
Ukhuseleko lwabasebenzi oluphuculweyo kunye nendawo yezityalo
Umgangatho womoya ongcono wangaphakathi kubasebenzisi bokugqibela
Ukuthotyelwa kwemigangatho yokukhupha i-VOC
Ukusebenza okuzinzileyo kunye neeprofayili zokunyuka kwefoam ezihambelanayo
Ezi nzuzo zenzaii-catalysts ze-polyurethane ezingenavumba liphantsi ukhetho olukhethwe kakhulu ngabavelisi befoam kwihlabathi liphela.
Izicelo kuzo zonke iinkqubo zePolyurethane
Ii-catalysts ezingenavumba lininzi ngoku zisetyenziswa phantse kuzo zonke iinkqubo ze-polyurethane:
Amagwebu aguquguqukayo: izihlalo zeemoto, imiqamelo yefenitshala, oomatrasi
Amagwebu aqinileyo: iiphaneli zokuthintela ukufudumeza, amagwebu okutshiza, amagwebu efriji
Iingubo, izinto zokuncamathelisa, izinto zokutywina, kunye nee-elastomers (ICASE): ifuna ukusebenza okungemthubi, okunokukhupha umbane okuncinci
Ukuthi ngqo,Ubushushu befoam efuthwayo nge-HFOiinkqubo ziyazuza kwii-catalysts ezinevumba eliphantsi ezigcina umsebenzi ophezulu ngelixa zithintela ivumba le-amine elingafunekiyo kwiindawo zokwakha ezivalekileyo.
Isiphelo
Umkhwa oyaii-catalysts ze-polyurethane ezingenavumba liphantsi ayibonisi nje kuphela impendulo kwimithetho kodwa ikwabonisa notshintsho kushishino olujolise ekuzinzeni, ukhuseleko, kunye nokuphuculwa komgangatho. Ngokwamkela inkqubo ephucukileyo ubuchwepheshe be-catalyst obukhupha ukungcola okuphantsi, abavelisi be-polyurethane banokufezekisa imveliso ecocekileyo, izixhobo ze-foam ezisebenza kakuhle, kunye nolwaneliseko oluphezulu kubasebenzisi bokugqibela.
Njengomnye wababoneleli abaphambili be-polyurethane catalysts eTshayina,Izixhobo Ezintsha zeMingxu iyaqhubeka nokuphuhlisa izinto ezintshaiikhatalyst ezinevumba eliphantsi, ezisebenza kakuhle kakhulu ukuhlangabezana neemfuno zeenkqubo ze-foam zanamhlanje. Ipotifoliyo yethu yemveliso ibandakanyaI-MXC-R40, MXC-37, kunye neMXC-DPA, ebonelela ngezisombululo ezifanelekileyo kubathengi abafuna ulungelelwano phakathi kokwenza izinto ngendlela echanekileyo, uzinzo, kunye noxanduva lokusingqongileyo.
Ixesha leposi: Novemba-14-2025