Mishonga inoputira yeHydrofluoroolefin (HFO) inomiririra kufambira mberi kukuru mukugadzirwa kwefuro repolyurethane, ichipa imwe nzira isingakuvadzi nharaunda pane mishonga yechinyakare. Semutengesi wezvinhu zvinopfungaira zvepolyurethane, zvakakosha kunzwisisa basa uye mabhenefiti emishonga inoputira yeHFO kuti itungamire vatengi vedu zvinobudirira.
Chii chinonzi HFO Blowing Agent?
HFO blowing agents rudzi rwemakemikari anoshandiswa zvakanyanya mukugadzira ma polyurethane foams. Aya ma agents ndeemhuri ye hydrofluoroolefin, inozivikanwa nechimiro chavo chakasiyana chemamorekuru, chinosanganisira maatomu ekabhoni, hydrogen, uye fluorine akarongwa muchimiro che double-bond. Chimiro ichi chinopa hunhu hwakasiyana hunoita kuti ma HFOs anyanye kukodzera kushandiswa sema blowing agents.
Zvinhu zvinofefetera zvakakosha mukugadzirwa kwefuro sezvo zvichigadzira chimiro chemasero mukati mefuro nekugadzira gasi panguva yemakemikari. Gasi iri rinoumba mabhuru, ayo anokura uye anooma kuti agadzire furo rakareruka, rinodzivirira kupisa. HFOs dzave zvinhu zvinofefetera zvinosarudzwa nekuda kwekuderera kwekudziya kwepasi rose (GWP) uye kusapera kwe ozone (ODP), zvichigadzirisa matambudziko ezvakatipoteredza ane chekuita nezvizvarwa zvekare zvezvinhu zvinofefetera.
Mashandisirwo eHFO Blowing Agents
Mishonga inoputira HFO inoshandiswa zvakanyanya mumabasa akasiyana-siyana, kunyanya mukugadzira furo repolyurethane rekudzivirira kupisa uye kunamatira. Heano mamwe mashandisirwo akakosha:
1. Kuvaka neKuvaka:
Mafuro epolyurethane anoputirwa neHFO anoshandiswa zvakanyanya pakudzivirira kupisa muzvivakwa zvekugara uye zvemabhizinesi. Mafuro aya anopa hunhu hwakanaka hwekudzivirira kupisa, zvichibatsira kuchengetedza tembiricha yemukati, kuderedza kushandiswa kwesimba, uye kuwedzera kushanda zvakanaka kwesimba. Kushandiswa kweHFO muchikamu ichi kunoderedza zvakanyanya kukanganisa kwezvinhu zvinodzivirira kupisa nharaunda.
2. Midziyo:
Maindasitiri efiriji nemhepo inotonhodza anobatsirwa zvikuru nemafuro epolyurethane anoputika neHFO. Mafuro aya anoshandiswa sezvinhu zvinodzivirira kupisa mumafiriji, mafiriji, uye masisitimu eHVAC. HFO blowing agents inobatsira kuvandudza kushanda zvakanaka kwesimba remidziyo iyi, zvichibatsira kuderedza mitengo yesimba uye kuderedza kuburitswa kwemagasi anodziya pasi.
3. Indasitiri yeMotokari:
Mafuro anopfurwa neHFO anoshandiswa muindasitiri yemotokari mukushandiswa kwakadai sekuchengetedza zvigaro uye kudzivirira kupisa. Anowedzera nyaradzo uye kuchengetedzeka ukuwo achibatsirawo mukushandisa simba remotokari nekupa kudzivirira kupisa kwakanyanya.
4. Kurongedza:
Muindasitiri yekurongedza, furo rinopfurwa neHFO rinoshandiswa kugadzira zvinhu zvinodzivirira zvinoreruka uye zvinogara kwenguva refu. Zvinhu izvi zvakakosha pakudzivirira zvinhu zvisina kusimba panguva yekutakura nekuchengetera.
Mukupedzisa, mishonga inoputira yeHFO iri kuchinja indasitiri yepolyurethane foam nekupa mhinduro inogara kwenguva refu uye inoshanda kune akasiyana mashandisirwo. Kukanganisa kwavo kushoma kwezvakatipoteredza, pamwe chete nehunhu hwavo hwakanaka hwekushanda, zvinoita kuti ive sarudzo yakakodzera kune vagadziri vari kutsvaga kusangana nezvinodiwa nemutemo uye zvinodiwa nevatengi zvezvigadzirwa zvisingakuvadzi nharaunda. Semupi wezvinhu zvinoputira polyurethane, kugara uine ruzivo nezvemabhenefiti uye mashandisirwo emishonga inoputira yeHFO kunotibvumira kushandira vatengi vedu zviri nani uye kubatsira mune ramangwana rakagadzikana.
Nguva yekutumira: Chikumi-17-2024