Njengomthengisi ophambili wee-polyurethane catalysts, sonwabile ukugqamisa indima ebalulekileyo edlalwa zezi catalysts ekuvelisweni kwe-polyurethane foam, into esetyenziswa ngeendlela ezahlukeneyo kumashishini ahlukeneyo. Iimveliso zethu, kuquka i-MXC-A33, i-MXC-T kunye nezinye iintlobo ngeentlobo zee-catalysts ezikhethekileyo, ziyinxalenye ebalulekileyo yenkqubo yokwenziwa kwe-polyurethane foam, ukuqinisekisa iimpendulo ezisebenzayo kunye neziphumo zokusebenza okuphezulu.
Indlela Eyenziwa Ngayo I-Polyurethane Foam
I-polyurethane foam iveliswa ngokusebenzisa i-chemical reaction phakathi kwe-diisocyanates kunye ne-polyols, zombini ezithathwe kwi-oyile ekrwada, nangona ii-polyols zinokwenziwa kwi-oyile yendalo ehlaziyekayo. Le reaction iphumela kwi-polymer chain eyenza isakhiwo esiphambili se-foam. Imveliso ye-polyurethane foam ibandakanya izinto ezintandathu eziphambili:
- IiPolyols: Ibhloko yokwakha ephambili yefoam, esabela kunye ne-diisocyanates.
- Ii-Diisocyanates: Ii-reactants eziphambili ezidityaniswe nee-polyols ukwenza i-foam.
- Iiarhente zokufaka amagwebu: Ezi zinceda ekwakheni ulwakhiwo lweseli lwefoam.
- Ii-surfactants: Zinzisa igwebu ngexesha lenkqubo yalo yokwandisa.
- Iikhatalyst: Khawulezisa impendulo phakathi kweepolyols kunye neediisocyanates, uqinisekise ukwakheka kwefoam okufanelekileyo.
- Izixhobo zokulungisa izinto: Ii-Crosslinkers kunye nee-chain extenders zisetyenziselwa ukuphucula ukuqina nokusebenza kwe-foam.
Xa ezi zithako zidityanisiwe, ziyasabela ngokweekhemikhali, zivelise ubushushu, igesi, kunye nolwakhiwo olubonakalayo lwefoam. IiCatalysts ezifana neMXC-A33 yethu kunye neMXC-T zenza kube lula oku kusabela, ziqinisekisa inkqubo elawulwayo nesebenzayo.
Izicelo zeCatalyst kwiPolyurethane Foam
I-polyurethane foam iza kwiindidi ezimbini eziphambili: eqinileyo neguquguqukayo. Ukusetyenziswa kwayo kususela ekugqumeni ubushushu xa kusakhiwa (i-rigid foam) ukuya ekutshiseni ifenitshala kunye nangaphakathi kweemoto (i-flexible foam). Ii-catalysts zethu zenzelwe iimfuno ezahlukeneyo:
-I-MXC-A33:I-catalyst eyenziwe yi-33% TEDA (triphenylenediamine) kunye ne-67% DPG (monoconjugated dipropylene glycol), eyenzelwe ngokukodwa ii-polyurethane foams kunye ne-polyurethane elastomers. Isetyenziswa kakhulu kwi-polyurethane foam ethambileyo, eqina, eqinileyo, kunye ne-elastomer.
-I-MXC-T:Yi-catalyst ye-amine esebenzayo, engenazo izisi ezikhupha umoya enika i-reaction curve egudileyo kwaye ngenxa yoko ingasetyenziselwa ukuvelisa iintlobo ezahlukeneyo ze-polyurethane foams. Isenzo sayo sokuvuselela sikhuthaza i-reaction ye-urea (water-isocyanate), enokuthambekela ekuphenduleni kwi-polymer matrix ngenxa yeqela layo elisebenzayo le-hydroxyl. Ngenxa yesi sizathu, i-TMAEA isetyenziselwa ukutshiza i-foam insulation, ii-dashboards zeemoto, kunye nezinye iindawo ezifuna ivumba elincinci elishiyekileyo..
Iikhatalyst zePolyurethane ziqinisekisa amazinga afanelekileyo okusabela, iimpawu zefoam ezilungelelaniswe kakuhle ezifana noxinano, ubulukhuni, kunye nokuqina kwesakhiwo. Oku kuchaneka kwenza ifoam ye-polyurethane ikwazi ukuhlangabezana neemfuno ezingqongqo zemizi-mveliso yanamhlanje, kubandakanya ulwakhiwo, iimoto, ifenitshala kunye nokupakishwa.
Ngathi
Singumthengisi ophambili wee-polyurethane catalysts ezisebenza kakuhle, sizibophelele ekunikezeni izisombululo ezintsha kwiintlobo ngeentlobo zezicelo zoshishino. Uluhlu lwethu olubanzi lwemveliso lunceda abavelisi ukuba baphucule iinkqubo zemveliso ye-foam ngelixa behlangabezana nemigangatho yokusingqongileyo kunye nemithetho.
Ixesha leposi: Okthobha-23-2024