Uphahla olufuthwe nge-polyurethane foam (SPF) seludumile futhi luyindlela yokukhetha izakhiwo zezentengiselwano nezindawo zokuhlala, ikakhulukazi ekufakweni kophahla. Uphahla lwe-SPF luqukethe ungqimba lwe-polyurethane foam olufuthwe phezu kophahla, olube selukhula futhi luqine ukuze lwakhe ungqimba oluvikelayo olungenamthungo, oluhlala isikhathi eside futhi olunomswakama ophezulu. Lolu hlobo lophahla lunokonga amandla okuhle kakhulu, ukumelana namanzi kanye nezakhiwo ezihlala isikhathi eside.
Uhlelo lophahla lwe-SPF luqukethe ingxube yezithako ezimbili, i-isocyanate (ingxenye A) kanye ne-polyol (ingxenye B), futhi isetshenziswa ngaphansi kokucindezela okuphezulu kanye nokushisa. Amakhemikhali amabili agcinwa ezitsheni ezihlukene futhi athuthwe ngepayipi lokucindezela okuphezulu aye emshinini wokuxuba, lapho afudunyezwa khona cishe ku-115-130°F. Uma efuthwa, ayahlangana futhi asabela ngokushesha ukuze akhe ungqimba lophahla oluqinile, olulula, noluboshwe ngokuphelele. Uphahla lwe-SPF luhlinzeka ngokuvikela okuhle kakhulu, luvimbela ukungena kwamanzi, futhi lwandise impilo yophahla ngokwenza isithiyo esinamandla ekugugeni nasekulimeni kwemvelo.
Izinhlobo ze-Spray Polyurethane Foam: I-Open-Cell vs. I-Closed-Cell
Izinto zokufulela zesimanje ze-SPF zihlukaniswe izinhlobo ezimbili eziyinhloko: i-open-cell kanye ne-closed-cell foam, ngayinye inezakhiwo ezihlukile ezihlangabezana nezidingo ezahlukene zokufulela kanye nokufakwa kokushisa.
1. Igwebu Elivaliwe:Le foam eqinile kakhulu isetshenziswa kakhulu ekusetshenzisweni kophahla lwezentengiselwano. Ifoam yamaseli avaliwe inenani eliphakeme le-R (isilinganiso sokumelana nokushisa) kunefoam yamaseli avulekile, okusho ukuthi inokushisa okungcono. Iyamelana nokumuncwa kwamanzi, okwenza ibe yindawo ekahle yokusetshenziswa kwangaphandle lapho ukuqina nokumelana namanzi kubalulekile khona. Ifoam yamaseli avaliwe inikeza ukwesekwa okuhle kwesakhiwo futhi ingandisa ukuqina kobuso bophahla, ngaleyo ndlela ithuthukise amandla ophahla.
2. Igwebu Elivulekile:Le foam elula, engaxinene kakhulu ivame ukusetshenziselwa ukushisa kwangaphakathi kanye nokushisa kwe-acoustic, kunophahla lwangaphandle. Uma kuqhathaniswa nefoam yamaseli avaliwe, ifoam yamaseli avulekile iyaguquguquka futhi inenani eliphansi le-R, kodwa ingabizi kakhulu futhi ingagcwalisa izikhala ezinkulu, okwenza ifaneleke ukufudumala kwangaphakathi. Nakuba ifoam yamaseli avulekile ingangeni manzi njengefoam yamaseli avaliwe, izakhiwo zayo zokuvikela umsindo ziyaziswa futhi ngenxa yalokho zivame ukusetshenziswa ezindongeni naseziphahleni ezindaweni zokuhlala nezentengiselwano.
Ifoam evaliwe ivame ukusetshenziswa ophahleni lwe-SPF ngenxa yokuqina kwayo, ukufudumala, kanye nekhono lokubekezelela izimo zangaphandle ezinzima. Izingxenye ze-A kanye ne-B ze-SPF zixutshwa endaweni futhi zifakwa ngqo ophahleni kusetshenziswa imishini ekhethekile yefoam yokufutha. Ukuqinisekisa ukushisa kanye nengcindezi efanele ngesikhathi sokufakwa kubalulekile ekufinyeleleni ungqimba lwe-SPF olufanayo nolusebenzayo.
Ingabe i-Spray Polyurethane Foam iphephile?
Umbuzo ovamile mayelana nophahla lwe-SPF ukuphepha kwazo, ikakhulukazi imiphumela engaba khona yempilo yamakhemikhali ahilelekile ekukhiqizweni kwe-foam. Ngokuvamile, i-polyurethane foam ngokwayo ayinabo ubuthi, kodwa ezinye zezithasiselo ezisetshenziswa ekukhiqizweni kwayo zingase zibangele ukukhathazeka. Isibonelo, izazi zemvelo ngezinye izikhathi ziyakungabaza ukuphepha kwe-SPF ngenxa yokwengezwa kwama-ejenti athile okufutha kanyeizinto ezivimbela ilangabiezikhipha ama-volatile organic compounds (ama-VOC).
Izinto ezivuthelayo kanye nezinto ezivimbela ilangabi kwezinye izinhlobo ze-SPF zingase zikhiphe ama-VOC, okuholela ekutheni kube nokufudumala komhlaba okuphezulu (GWP) futhi, kwezinye izimo, kube nemiphumela engaba khona empilweni uma ingaphathwa kahle ngesikhathi sokusetshenziswa. Amazinga aphezulu e-VOC angabangela ukulimala uma ephefumulwa ngesikhathi sokufakwa, ngakho-ke kumele kulandelwe izinqubo zokuphepha eziqinile, okuhlanganisa ukusetshenziswa komoya ofanele kanye nemishini yokuzivikela yomuntu siqu (PPE).
Ama-catalyst ethu e-polyurethane, njengeI-MXC-5futhiI-MXC-8, idlala indima kulezi zithasiselo ukuze yenze ngcono inqubo yokusabela futhi ithuthukise ukuzinza nokusebenza kwe-foam. Nakuba ukufakwa kwala ma-ejenti kuyadingeka ukuqinisekisa ukusebenza nokuqina kwe-SPF, kugxilwe kakhulu ezinkethweni ze-low VOC ukuze kuncishiswe izingozi zempilo ezingaba khona kanye nemiphumela emvelweni. Ukusetshenziswa kwamakhemikhali e-low VOC ekukhiqizweni kwe-SPF kungasiza ekunciphiseni ukuchayeka kumagesi okukhipha umoya ayingozi futhi kunciphise ukusabela kokungezwani komzimba kwabantu abahlala khona kanye nezinye izingozi zempilo ngemva kokufakwa.
Ukuqinisekisa Ukusetshenziswa Okuphephile Nokuphepha Kwesikhathi Eside Kophahla lwe-SPF
Ukuphepha kwe-SPF kuncike kakhulu ekuphathweni okufanele ngesikhathi senqubo yokufaka. Ochwepheshe abaqeqeshiwe kufanele bafake uphahla lwe-SPF, baqinisekise ukuthi amakhemikhali axutshwe kahle futhi asetshenziswa ukuze kuncishiswe ukukhishwa kwe-VOC futhi kuqinisekiswe ukusebenza okuhle kakhulu. Izindlela zokuvikela ngesikhathi sokufaka, okuhlanganisa imaski nokungenisa umoya, zibalulekile kubasebenzi ukuze bagweme ukuphefumula noma yimuphi umusi ngesikhathi senqubo yokufafaza.
Uma i-SPF isipholile futhi iqinile, iba yinto engasasebenzi futhi ayikhiphi ama-VOC, okwenza kube okuphephile kubantu abahlala kuyo. Uphahla lwe-SPF lunganikeza iminyaka eminingi yokuvikela okuphephile nokuthembekile kanye nokuvikela amanzi ezakhiweni uma zifakwe ngendlela efanele, futhi ukwakheka kwe-VOC ephansi kuthuthukisa ukuphepha kwayo kwemvelo.
Isiphetho
Uphahla lwe-polyurethane foam olufuthwayo luyisisombululo esisebenza kahle kakhulu futhi esiguquguqukayo sezakhiwo zezentengiselwano nezindawo zokuhlala, olunikeza ukufudumala okuphezulu, ukuqina, kanye nokusebenza kahle kwamandla. Ngokuqonda izinhlobo ze-SPF kanye nezicelo zazo, kanye nokusebenzisa imikhuba yokufaka ephephile, abanikazi bezakhiwo bangazuza ezinzuzweni zophahla lwe-SPF ngaphandle kokubeka engcupheni amazinga ezempilo noma ezemvelo. Izinketho ze-SPF eziphansi ze-VOC kanye nentuthuko kwezobuchwepheshe be-polyurethane catalyst ziyaqhubeka nokuthuthukisa iphrofayili yokuzinza nokuphepha kophahla lwe-SPF, okuqinisekisa ukuthi luhlala luyisinqumo esisebenzayo semikhuba yokwakha enakekela imvelo.
Isikhathi sokuthunyelwe: Novemba-07-2024