Ukufakwa kweFoam yeSpray kunye nendima yeeCatalysts zePolyurethane

Izinto zokugquma i-spray foam ziye zaba yiteknoloji kwizakhiwo zanamhlanje, ezine-insulation engcono yobushushu, umoya ongena kunye neempawu zokumelana nokufuma. Eyona nto iphambili kule nkqubo yokugquma i-polyurethane foam, into eyenziwe nge-chemical reaction phakathi kwezinto ezimbini eziphambili: icala elithi "A" (ngesiqhelo yi-polyisocyanate) kunye necala elithi "B", elingumxube wee-polyols, ii-catalysts, ii-blowing agents, ii-flame retardants kunye nee-surfactants. Ii-polyurethane catalysts, ezifana ne-MXC-BDMA kunye ne-MXC-TMA, zidlala indima ebalulekileyo ekuqhubeni ii-reactions, ukuphucula ukwakheka kwe-foam kunye nokuqinisekisa ukusebenza okufunekayo kwiintlobo ngeentlobo zezicelo zokugquma.

Izinto eziyinxalenye yecala elithi “B” kwiiNkqubo zePolyurethane ezitshizwayo

Kwiinkqubo ze-spray polyurethane foam (SPF), icala elithi “B” liquka uluhlu lwezongezo ezilawula ukusebenza kwemveliso yokugqibela. Ezi zongezo ziquka:

  1. IiPolyols: Iibhloko zokwakha eziphambili ezisabela kunye nee-isocyanates ukuze zenze i-polyurethane polymer.
  2. Iikhatalyst: Iikhompawundi zeekhemikhali ezikhawulezisa impendulo phakathi kweepolyols kunye nee-isocyanates, ziqinisekisa ukwakheka kwefoam kunye nokuphiliswa kwayo ngokufanelekileyo.
  3. Iiarhente Zokwenza AmagwebuIzinto ezinceda ekudaleni isakhiwo sefoam ngokuvelisa igesi ngexesha lokusabela.
  4. Izinto ezithintela ilangatye: Izongezo eziphucula ukumelana nomlilo kwefoam.
  5. Ii-surfactants: Iikhompawundi ezizinzisa ulwakhiwo lwefoam, ziqinisekisa ukwakheka kweeseli ezifanayo.

I-DMAEE (2)

I-MXC-BDMA: I-Benzyl Dimethylamine Catalyst yeFoam yePolyurethane eQondileyo

I-MXC-BDMA (CAS 103-83-3) sisincedisi se-benzyl dimethylamine esisetyenziswa kakhulu kwishishini le-polyurethane, ingakumbi kwizicelo ze-foam eqinileyo. Isebenza kakuhle kakhulu kwimveliso ye-polyurethane foams eqinileyo, eneempawu ezibalaseleyo zokuthintela ubushushu kunye nokuqina kwesakhiwo kwaye idla ngokusetyenziselwa ukutshiza i-foam insulation.

Iingenelo eziphambili ze-MXC-BDMA kwiinkqubo ze-spray foam ziquka:

Ukuphucula ukugeleza kwangethuba: I-MXC-BDMA iqinisekisa ukuba umxube we-polyurethane ugcina ukunyibilika okuhle ngexesha lokuqala kwenkqubo yokufutha, ukuvumela ukuba kuhambe ngokulula kwaye kuzalise izikhewu okanye izithuba ezingacwangciswanga.

Ulwakhiwo lweseli olufanayo: I-catalyst ikhuthaza ukwakheka kwamaqamza amancinci afanayo ngaphakathi kwi-foam, ngaloo ndlela iphucula ubushushu bomzimba kwaye iqinisekise uzinzo loomatshini. Ulwakhiwo lweseli olufanayo lukwanceda i-foam ukuba igcine umoya uqinile rhoqo, nto leyo ephucula ukusebenza kakuhle kwamandla obushushu.

Ukunamathela okuqinileyo kwi-substrates: I-MXC-BDMA inceda ekuphuculeni ukunamathelana phakathi kwefoam kunye nezinto ezahlukeneyo, ezifana nomthi, isinyithi kunye nekhonkrithi. Oku kuqinisekisa ukuba ifoam yokutshiza inamathela ngokuqinileyo kumphezulu osetyenzisiweyo, nokuba kukwiindawo ezinzima.

I-MXC-TMA: Isihluzi seNkqubo zeFoam zePolyisocyanurate

Esinye isithako esibalulekileyo kwiinkqubo ze-polyurethane ezitshiziweyo yi-MXC-TMA (CAS 75-50-3), isithako esisekelwe kwi-trimethylamine esifanelekileyo ngokukodwa kwiinkqubo ze-polyisocyanurate (PIR) foam. I-PIR foam ifana ne-polyurethane foam, kodwa le fomula iqulethe inani eliphezulu le-isocyanates. Olu tshintsho lunika i-foam uzinzo olukhulu lobushushu kunye nokumelana nomlilo, nto leyo eyenza ukuba ibe lukhetho olubanzi lokusetyenziswa kwe-insulation apho ukumelana nomlilo kubalulekile.

I-MXC-TMA inegalelo kwiinkqubo ze-PIR ngeendlela ezininzi ezibalulekileyo:

Ukuhambelana neenkqubo ze-PIR: I-MXC-TMA yenzelwe ukuba i-polyisocyanurate foam formulations iqhube ngempumelelo impendulo kwaye iqinisekise ukuba i-foam iphiliswa ngokulinganayo nangokupheleleyo.

Ukumelana nomlilo okuphuculweyo: Ifoam ye-PIR inokumelana okuphezulu komlilo xa ithelekiswa nefoam ye-polyurethane eqhelekileyo. Ukusetyenziswa kwe-MXC-TMA kwiifomyula ze-PIR kuyayiphucula le mpawu, nto leyo eyenza ukuba ibe lukhetho lokusetyenziswa kwiindawo ezinokutsha okanye ezishushu kakhulu.

Ukwakheka kwefoam ezinzileyo: Ngokufanayo ne-MXC-BDMA, i-MXC-TMA iqinisekisa ukuba igwebu lenza isakhiwo seseli esifanayo, esibalulekileyo ekugcineni iipropati zokukhusela izinto ixesha elide.

Iifoam ze-PIR eziqulethe i-MXC-TMA zisetyenziswa kakhulu kwiimpahla zorhwebo zokufulela, ukufakelwa udonga, kunye nezinye izinto zokufakelwa ubushushu ezisebenza kakuhle ezifuna ukufakelwa ubushushu kunye nokukhuselwa kumlilo.

Ukubaluleka kweeCatalysts kwiSpray Foam Insulation

Ukuqukumbela, ii-catalysts ze-polyurethane ezifana ne-MXC-BDMA kunye ne-MXC-TMA zizinto ezibalulekileyo kwiinkqubo zokukhusela i-spray foam. Zinceda ukulawula ukusabela, ukuphucula ukuhamba kwe-foam kunye nokufana, kunye nokuqinisekisa ukunamathelana okuqinileyo kunye nozinzo.

Ixesha leposi: Disemba-11-2024
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