Ko ngā Hydrofluoroolefins (HFO) he matū waro kore-mākū kei roto ko te hauwai, te fluorine me te waro. He rerekē ki ngā hydrofluorocarbons tuku iho (HFC) me ngā chlorofluorocarbons (CFC), he mea mākū, ko ngā HFO he olefins, e mōhiotia ana ko ngā alkenes. Kei te whakawhanakehia ngā HFO hei whakamatao "tuawhā o ngā whakatipuranga" me te tino iti o te kaha ki te whakamahana ā-ao, arā, 0.1% o ngā HFC. He poto te roa o te ora o ngā hua HFO ki te āhuarangi, ā, kua whakarōpūtia he kore ODP (Ozone Depletion Potential) me te iti o te GWP (Global Warming Potential), e whakarato ana i tētahi atu huarahi pai ake mō te taiao ki ngā CFC, HCFC me ngā HFC.
Ko te pahuka polyurethane i hangaia mā te whakamahi i ngā HFO hei matū pupuhi e whakamahia whānuitia ana i roto i ngā rāngai motuka me te hanga i roto i te ahua o ngā pahuka ngāwari me ngā pahuka pakari, ā, koinei te mea e akiaki ana i te tipu o te mākete HFO.
Wā tuku: Pipiri-27-2022