Ukuqonda i-Spray Foam Insulation: Ulwakhiwo, usetyenziso, kunye nendima ye-Polyurethane Catalysts

I-spray foam insulation sisisombululo esihle kakhulu se-thermal insulation esiqulathe izithako ezimbini eziphambili: ii-polyol resins kunye nohlobo oluthile lwe-isocyanate. Xa ezi zithako zidityanisiwe, ziyasabela ekwenzeni i-foam eyandayo kwaye iqine ibe yi-polyurethane. I-polyurethane spray foams zisebenziseka lula kwaye zisebenza kakuhle kuba ziqulathe iigesi eziqhuba kancinci kwiimbobo zazo, nto leyo ephucula iipropati zazo ze-thermal insulation. Kukho iintlobo ezimbini eziphambili ze-spray foam insulation: evulekileyo nevaliweyo. Uhlobo ngalunye luneengenelo ezizodwa kunye neendawo zokusetyenziswa.

Yenziwe Ngantoni I-Spray Foam Insulation?

Xa iipolyols kunye nee-isocyanates zixutyiwe, zenza i-foam, zenze isakhiwo se-polymer esomeleleyo. Ubunzima obuphantsi kunye nokuthamba okuthambileyo, okuguquguqukayo kwe-open-cell spray foam kwenza ukuba ilungele ukusetyenziswa ngaphakathi endlini efuna ukufunxwa kwesandi. Kwelinye icala, i-closed-cell spray foam ixinene kwaye iqine ngakumbi. Iimbobo zayo zivalekile ngokupheleleyo, zibamba igesi kwaye ngaloo ndlela zonyusa ixabiso le-R, nto leyo ebonisa ukugquma okugqwesileyo kobushushu. Ii-closed-cell foams ziyakwazi ukumelana nokufuma kwaye zisebenza kabini njengemiqobo yomoya kunye nomphunga, nto leyo eyenza ukuba zithandwe kakhulu kwiindawo ezifuna ukufunxwa.

Isetyenziswa phi i-Spray Foam Insulation?

I-spray foam insulation isetyenziswa kakhulu kwiindawo zokuhlala, zorhwebo kunye nemizi-mveliso. I-open-cell foam yaziwa ngokukhusela isandi sayo ngempumelelo kwaye isetyenziswa kakhulu kwiindonga zangaphakathi, imigangatho kunye neesilingi. Ngenxa yoxinano lwayo oluphezulu kunye nokuqina kwayo, i-closed-cell foam idla ngokusetyenziselwa iindonga zangaphandle, ii-basement, ii-crawl Spaces, kunye nee-attics.

Ifoam yokutshiza iiseli ezivaliweyo iyasebenza ngokukodwa ekugqumeni i-attic. Le nto ayisebenzi nje kuphela njengogqumi, kodwa ikwabonelela ngomqobo womoya nomphunga, nto leyo ebalulekileyo ekuthinteleni ukuqokelelwa komswakama kwi-attic. Ngokuvimba umoya nokufuma, ifoam yokutshiza iiseli ezivaliweyo inceda ukulawula ubushushu bangaphakathi, ukunciphisa iindleko zamandla kunye nokukhusela izinto zokwakha ekonakaleni kwamanzi.

IiCatalysts zePolyurethane kwizicelo zeSpray Foam

Iikhatalyst zePolyurethane ezifanaI-MXC-BDMA(N,N-dimethylbenzylamine) kunyeI-MXC-TMAzibalulekile ekuvelisweni kwe-spray foam insulation. I-MXC-BDMA iphucula ukuhamba kunye nesakhiwo seeseli ze-foam, ikhuthaza ukusasazwa ngokulinganayo kunye nokunamathela okugqwesileyo kwi-substrates. Le catalyst isetyenziswa kakhulu kwi-rigid polyurethane foam, iqinisekisa ukuba i-foam iyaphilisa ngamandla afanelekileyo kunye nozinzo. I-MXC-TMA, i-tertiary amine catalyst, yenzelwe ukusetyenziswa okufuna i-polyisocyanurate reaction elawulwayo, njenge-rigid foam esetyenziswa kumashiti kunye ne-insulation yezixhobo ezifana neefriji. Inegalelo ekugubungeleni okuthambileyo kwe-back-end, iqinisekisa ukuqina kunye nokusebenza ngokuhamba kwexesha.

Ukufakwa kwe-spray foam kuyaqhubeka nokuba sisisombululo esithandwayo ngenxa yokukwazi ukuguquguquka, amaxabiso aphezulu okufakwa kwe-insulation, kunye neempawu zokukhusela. Ngee-catalysts ezifanelekileyo, ukusetyenziswa kwe-polyurethane foam kufezekisa iimfuno zokusebenza ezingqongqo kwiindawo ezahlukeneyo zesakhiwo.