Nhanganyaya yeMuaining Mumiririri wePolyurethane Rigid foam inoshandiswa mumunda wekuvaka
Nezvivakwa zvinowedzera zvezvivakwa zvemazuva ano zvekuchengetedza simba kuchengetedza uye kuchengetedza zvakatipoteredza, iko kupora kwemukati kwekushandisa kwekuvaka kunowedzera uye kwakanyanya kukosha. Pakati pavo, polyurethane riigid foam chinhu chakanakisa cheInternation yezvinhu, neakanaka michina zvinhu, zvakaderera zvinowirirana uye zvimwe zvakanakira musango wekuvaka kuyisidzira.
Kupisa mumiririri ndeimwe yezvakanyanya zvinowedzera mukugadzirwa kwePolyurethane yakaoma foam. Sekureva kwayo mucherechedzo wekuita, inogona kukamurwa kuita mapoka maviri: makemikari anopinza mumiririri uye mumiriri anopumisira mumiririri.
Kuiswa kweFoam Agents
A makemikari afemical Agent ndeyekuwedzera kunoburitsa gasi uye fluoms polyurethane zvigadzirwa panguva yekuita kwesocyanates nemaPolyols. Mvura ndiyo mumiriri wemakemikari emumiriri wemakemikari, ayo anobata neiyo isocyanate chikamu chekugadzira kabhoni diokisi dioxide gasi, kuitira kuti aputike purlethane. Mumiriri wepanyama anowedzera kuwedzerwa mukugadzirwa kwehurongwa hwePolyurethane akaomesesa foam, iyo inopenya purlyurethane zvigadzirwa kuburikidza nekuita kwegasi. Vanyori venyama vamiririri vanonyanya kuderera-vanobika organic makomponi, senge hydrofluoroarbons (HFC) kana Alkane (HC) makomendi.
Maitiro ekuvandudza aFoam Agentyakatanga mukupera kwa1950s, kambani yeDupont inoshandiswa Trichloro-fluorthane (CFC-11) Sezvo yakawana Chigadzirwa Chigadzirwa, kubvira CFC-11 yanga ichishandiswa zvakanyanya mumunda wePolyurethane yakaoma foam. SeCfc-11 yakaratidza kukuvadza Ozone Layer, nyika dzeEurope dzeEurope dzakaramba dzichishandiswa kugadzirwa uye kushandiswa kweCFC-11. Sekuzivisa kwezvakatipoteredza zvinowedzera, nyika dziri kutanga kukudziridza uye kushandisa dzimwe nzira nekudziya pasi rose kudziya kugona (GWP).
HFC-Type Foam vamiririri vaimboongorora CFC-11 uye HCFC-141b, asi kukosha kweGWP yeHFC-mhando makomputa ari kumusoro, izvo zvisiri kubereka kuchengetedzwa kwezvakatipoteredza. Naizvozvo, mumakore achangopfuura, iyo yekuvandudzwa inotarisisa yemuvuramisiro muboka rekuvaka rakatanga kuderera-gwp dzimwe nzira dzekupaza.
Pros uye Cons of Foam Agents
Semhando yeInternation zvinhu, purerulethane Rigid foam ine zvakawanda zvakanakira kuita, sermunity simba rekunyora, yakanaka yekunyora kuita, hupenyu hwakatambanudzwa hurefu hwebasa uye zvichingodaro.
Semunhu anokosha ebetsero yekugadzirira purlyurethane akaomesesa foam, anopinza mumiririri ane zvakakosha pakuita, mutengo uye kuchengetedza zvakatipoteredza kwezvinhu zvekushandisa zvekunze. Zvakanakisa zveMakemikari Kupisa Mumiriri Kukurumidza Kukurumidza kumhanya, Unifer Fumping, inogona kushandisirwa muhuremu hwakawanda uye humbozha, kuitira kuti ugadzire yakakwira-polyurethane rigod foam.
Nekudaro, makemikari foam vamiririri vanogona kuburitsa magasi anokuvadza, senge kabhoni dioxide, kabhoni monoxide uye nitrogen oolides, zvichikonzera kusvibiswa kwenzvimbo. Kubatsira kweMumiriri wePoam Kwemanyoro ndekwekuti hakubudise magasi anokuvadza, ane madiki madiki pamatare, uye anogona zvakare kuwana zvidiki zvebubble bubble uye kuita kuri nani kwekusimbisa kwekuita. Nekudaro, vamiririri venyama venyama vane huwandu hwekunonoka kupenga uye hunoda kupisa kwakanyanya uye humidity kuita zvakanakira zvavanogona.
Semhando yeInternation zvinhu, purerulethane Rigid foam ine zvakawanda zvakanakira kuita, sermunity simba rekunyora, yakanaka yekunyora kuita, hupenyu hwakatambanudzwa hurefu hwebasa uye zvichingodaro.
Sebetsero yakakosha mukugadzirira kwepolyurethane yakaoma foam, mumiririri anopupuma ane chakakosha kuita, mutengo uye kuchengetedza zvakatipoteredza kwezvinhu zvekunze zvekushandisa. Zvakanakisa zveMakemikari Kupisa Mumiriri Kukurumidza Kukurumidza kumhanya, Unifer Fumping, inogona kushandisirwa muhuremu hwakawanda uye humbozha, kuitira kuti ugadzire yakakwira-polyurethane rigod foam.
Nekudaro, makemikari foam vamiririri vanogona kuburitsa magasi anokuvadza, senge kabhoni dioxide, kabhoni monoxide uye nitrogen oolides, zvichikonzera kusvibiswa kwenzvimbo. Kubatsira kweMumiriri wePoam Kwemanyoro ndekwekuti hakubudise magasi anokuvadza, ane madiki madiki pamatare, uye anogona zvakare kuwana zvidiki zvebubble bubble uye kuita kuri nani kwekusimbisa kwekuita. Nekudaro, vamiririri venyama venyama vane huwandu hwekunonoka kupenga uye hunoda kupisa kwakanyanya uye humidity kuita zvakanakira zvavanogona.
Ramangwana rekusimudzira maitiro
Maitiro evapambi anopinza mune ramangwana rekuvaka indasitiri inonyanya kuenderana nekuvandudzwa kweiyo yakaderera GWP Substutes. Semuenzaniso, CO2, HFO, uye dzimwe nzira dzemvura, dzive dzakadzika midzi, zero odp, uye kumwe kushandiswa kwezvakatipoteredza, kwave kushandiswa zvakanyanya mukugadzirwa kwePolyurethane riigid foam. Uyezve, sezvo chivakwa cheSimbera chivakwa chinoenderera mberi nekukudziridza, mumiririri wekupembera anowedzera kukudziridza kuita kwakanakisa, sekuita kwakadai kwekusimbisa kwekunzwa, huwandu hwepamusoro hwekusuwa, uye size diki yeBubble.
Mumakore achangopfuura, vekunze uye vekunze emagetsi emakemikari emakemikari akave achitsvaga vamiriri vepamhepo, zvinosanganisira magetsi emukati
Kutumira Nguva: Jun-21-2024