Teumanga polyurethaneHe mahi nui tā te mahi a ngā pahuka polyurethane (PU) i roto i ngā mahi pēnei i te hanga whare, te motuka me te whakamahana. Ka whakamahia ngā pahuka polyurethane (PU) i roto i ngā mahi pēnei i te whakamahana, ngā taonga me ngā takai hei whakapai ake i te whai huatanga o te pūngao me te whakamarie o te noho hou. Heoi, kua tirotirohia te tukanga hanga tuku iho o te pahuka polyurethane mō ōna pānga ki te taiao, inā koa te whakamahinga o ngā kai pupuhi hydrofluorocarbon (HFC). Ināianei, ko ngā kai pupuhi hydrofluoroolefin (HFO) hei huarahi hou ki te HFC ka tuku i tētahi kōwhiringa pai ake ki te taiao e whakaiti ana i te pānga ki te taiao o te tukanga hanga pahuka polyurethane.
Te Tūranga o ngā Ākena Pupuhi i roto i te Hanga Polyurethane
Ka hangaia e ngā mea pupuhi he hanganga pūtau e hoatu ana ki ēnei rauemi he āhuatanga māmā, he āhuatanga ārai, he āhuatanga whakamarie hoki. Ko ēnei mea pupuhi he matū pupuhi e pupuhi ana ina pāngia e te wera, e te tauhohenga matū rānei, ka puta he pahuka i te polyurethane.
I ngā wā o mua, ko te HFCS te mea pupuhi tino noa. I whakakapia e rātou te freon o mua (CFCS). Heoi, he ngoikoretanga kitea anō hoki tō te HFCS: he nui te kaha ki te whakamahana ā-ao (GWP). Ina tukuna ki te āhuarangi, ka mau pai ake te wera i te hauhā waro, ā, ka nui te pānga ki te huringa āhuarangi.
Te Huringa ki ngā Ākena Pupuhi HFO
Hei whakautu i ngā āwangawanga e tipu haere ana mō te taiao, kei te huri haere ngā kaihanga ki ngā pūnga pupuhi HFO (hydrofluoroolefin). Ko ēnei pūnga pupuhi he whakatupuranga hou o ngā matū he iti ake te GWP, ā, kāore e whai wāhi ki te whakaiti i te ozone.
Te iti o te pūmanawa whakamahana o te ao:Ko ngā HFO, pērā i te HFO-1233zd(E) me te HFO-1336mzz(Z), he iti iho i te 1 ngā GWP, ki te whakaritea ki ngā HFC pērā i te HFC-245fa, he tata ki te 1,030 te GWP. Mā tēnei whakahekenga nui o te GWP ka āwhina i te whakaiti i te pānga o te hanga pahuka ki te mahana o te ao.
Kore Pūmanawa Whakaiti Ozone:Kāore ngā HFO e kino ki te paparanga ozone, he rerekē ki ngā CFC me ngā HCFC, ā, ka whakarite kia tutukihia ngā ture o te ao pēnei i te Montreal Protocol.
Te Whakapai Ake i te Whai Hua o te Pūngao:He maha ngā wā ka whakaatuhia e ngā pahuka polyurethane i hangaia ki ngā matū pupuhi HFO he pai ake ngā āhuatanga whakamahana, ka whai wāhi atu ki te pai ake o te whakamahinga pūngao i roto i ngā whare. Ka hua ake tēnei ki te iti ake o ngā utu whakamahana me te whakamatao, ka whakaiti ake i te tapuwae waro e pā ana ki te whakapaunga pūngao.
Kāore e mura:He iti, he kore rānei e mura te nuinga o ngā HFO, nō reira he haumaru ake te whakahaere i roto i ngā taiao hangahanga ki te whakaritea ki ētahi atu momo pēnei i te warowaihā.
Te Whakatutukitanga Ture:Kei te whakakaha ake ngā ture a ngā whenua o te ao mō ngā matū pupuhi GWP teitei. Kei raro i tana ture Hau-F, te Kotahitanga o Ūropi, me te Hononga o Amerika, me ngā kaupapa pēnei i te Ture AIM, kei te whakaiti haere i te whakamahinga o ngā HFC hei whakakapi i ngā momo matū tauwhiro ake, tae atu ki ngā HFO.
Whakamutunga: He Hikoi ki tētahi Ao Matariki Ake
Teumanga polyurethaneKei te haere te panonitanga e akiakihia ana e te hiahia ki te whakaiti i tōna pānga ki te taiao. Ko te whakaurunga o ngā matū pupuhi HFO he taahiraa nui i roto i tēnei tukanga, e whakarato ana i tētahi otinga pumau ake ki ngā momo GWP teitei tuku iho pērā i te HFCS. Mā te tango i te HFO, ka taea e te umanga te āwhina ki te whakaiti i te pānga āhuarangi o ngā rauemi taketake pērā i te whakamarumaru, e whakatakoto ana i te ara mō ngā whare matomato ake, he pai ake te whakamahi i te pūngao.
Wā tuku: Hakihea-16-2024