Iifoam ze-polyurethane ezineembobo ezifakwe i-spray-coated (SPF) zisetyenziswa kakhulu ekugqumeni ubushushu, ekugqumeni isandi kunye nezixhobo zokwakha ezilula. Imveliso kunye nokusebenza kwe-SPF kunokuphuculwa ngokongeza ii-catalysts ezifana I-MXC-37 (2-[2- (dimethylamino) ethoxy] ethanol, i-DMAEE)Ezi catalysts zisebenza kakuhle ekusombululeni imingeni efana nevumba le-amine kunye nokulinganisela ukusabela kwi-reactivity kwiifomyula ezinomthamo wamanzi amaninzi.

1. Indima yeMXC-37 kwii-SPF

I-MXC-37 ingasetyenziswa njengeyona nto iphambili okanye edibanisayo ukuphucula inkqubo yokukhupha amagwebu kunye nokunyanga:

Ukuncipha kwencasa ye-amine:Enye yezona nzuzo zibalulekileyo zeI-MXC-37yikhono layo lokunciphisa incasa ye-amine eqhelekileyo kwimveliso egqityiweyo. I-hydrogen esebenzayo kwisakhiwo sayo ifakwe kwi-polymer matrix, inciphisa ii-amines eziguquguqukayo ezisele zishiyekile.

Ukuhambelana kwamanzi aphezulu:I-MXC-37 ibonakalisa umsebenzi ophezulu wokutsala amandla kwiifomyula ezisekelwe emanzini, nto leyo eyenza ukuba ibe lukhetho olubanzi kwiinkqubo zefoam ezinemingxuma ezisebenzisa amanzi njenge-agent yokufowuna.

Ukusetyenziswa okuguquguqukayo:Ingasetyenziswa njenge-catalyst ephambili yodwa, okanye nge-BDMAEE (bis [2- (dimethylamino) ethyl] ether) kunye nezinye ii-tertiary amines njengee-cocatalysts ukunciphisa imfuno ye-BDMAEE kunye nokuphucula ukusebenza kakuhle kweendleko.

2. Iingenelo kwiMveliso ye-SPF

I-MXC-37 ingasetyenziswa njengeyona nto iphambili okanye edibanisayo ukuphucula inkqubo yokukhupha amagwebu kunye nokunyanga:

Ukuncipha kwencasa ye-amine:Enye yezona nzuzo zibalulekileyo ze-MXC-37 kukukwazi kwayo ukunciphisa incasa ye-amine eqhelekileyo kwimveliso egqityiweyo. I-hydrogen esebenzayo kwisakhiwo sayo ifakwe kwi-polymer matrix, nto leyo enciphisa ii-residual volatile amines.

Ukuhambelana kwamanzi aphezulu:I-MXC-37 ibonakalisa umsebenzi ophezulu wokutsala amandla kwiifomyula ezisekelwe emanzini, nto leyo eyenza ukuba ibe lukhetho olubanzi kwiinkqubo zefoam ezinemingxuma ezisebenzisa amanzi njenge-agent yokufowuna.

Ukusetyenziswa okuguquguqukayo:Ingasetyenziswa njenge-catalyst ephambili yodwa, okanye nge-BDMAEE (bis [2- (dimethylamino) ethyl] ether) kunye nezinye ii-tertiary amines njengee-cocatalysts ukunciphisa imfuno ye-BDMAEE kunye nokuphucula ukusebenza kakuhle kweendleko.

3. Ukusetyenziswa okuPhambili kwee-SPF ezineembobo

Ii-SPF ezinemingxuma ezikhuthazwa yi-MXC-37 ukufumana usetyenziso kwiinkalo ezahlukeneyo:

Ubushushu obuphezulu:Isetyenziswa ekwakheni iindonga, uphahla, kunye nemibhobho yemizi-mveliso ukuphucula ukusetyenziswa kwamandla ngendlela efanelekileyo.

Ukuthintela isandi:Ulwakhiwo lwe-SPFs ezineembobo ezivulekileyo lufunxa amaza esandi, nto leyo ewenza afaneleke ukuthintela umsindo kwiindawo zokuhlala nezezorhwebo.

Izizalisi ezilula:Ii-SPF ezinemingxuma zisetyenziswa kwizixhobo zokwakha ezilula, zinciphisa ubunzima ngaphandle kokunciphisa amandla.

Izixhobo zokuPakisha:Iimpawu zazo zokungachukumisi ukutshayiswa zizenza zibe zilungele ukupakishwa okukhuselekileyo.

4. I-MXC-37 njengeCocatalyst

Xa isetyenziswa kunye ne-BDMAEE okanye ezinye ii-amine catalysts, i-MXC-37 ibonelela:

Ulawulo oluphuculweyo lwe-Reactivity:Ilungelelanisa ukusabela kwe-foam kunye ne-gel, iqinisekisa umgangatho ofanayo we-foam.

Idosi yeCatalyst encitshisiweyo:Inciphisa isidingo sokwanda kwamanqanaba e-BDMAEE, nto leyo ekhokelela ekongeni iindleko kunye nokunciphisa ukukhutshwa komoya ongcolileyo.

Ukusebenza Okunokulungiselelwa Ngokwezifiso:Ivumela ukulungiswa kakuhle kwenkqubo ye-catalyst kwiimeko ezithile zokucubungula kunye neemfuno zokusebenza.

Kutheni Ukhetha iMXC-37 kwii-SPF?

1. Ukunciphisa ivumba: Kunciphisa ivumba le-amine kwimveliso yokugqibela, kuphucula amava omsebenzisi.

2. Ukuguquguquka: Ifanelekile kwiinkqubo zefoam ezivulekileyo kunye nezivaliweyo.

3. Ilungele ukusingqongileyo: Ihambelana nemigangatho ye-VOC ephantsi kunye nemigangatho yokukhupha ukungcola okuphantsi.

4. Ukonga iindleko: Kunciphisa ukuxhomekeka kwiikhatalyst ezibiza kakhulu okanye ezinevumba elibi njenge-BDMAEE.

5. Umgangatho weFoam oPhuculweyo: Uqinisekisa ulwakhiwo lweseli oluhambelanayo, ukuvuleka okuphezulu, kunye nokunamathela okuqinileyo.

Ngokufaka iMXC-37 kwiinkqubo zefoam ye-polyurethane efuthayo enemingxuma, abavelisi banokuvelisa amafoam asemgangathweni ophezulu, anobuhlobo nokusingqongileyo anevumba elincinci kunye nokusebenza okuphuculweyo, ukuhlangabezana neemfuno zamashishini okugcina ubushushu kunye nokwakha anamhlanje.