I te mea kua piki ake te aro ki ngā otinga tauwhiro i ngā tau tata nei, e kite ana mātou i te pikinga ake o te hiahia mō ngā poraka hanga me ngā pūnaha wai-pūmau, kaua ki te whakamahi i te whakarewa. Ko te whakamaroke UV he hangarau whai hua rauemi i whakawhanakehia i ētahi tekau tau ki muri. Mā te whakakotahi i ngā painga o te whakamaroke tere, te whakamaroke UV kounga teitei me te hangarau mō ngā pūnaha wai-pūmau, ka taea te whiwhi i te pai o ngā ao tauwhiro e rua.
Te arotahi hangarau nui ake ki te whanaketanga tauwhiro
Ko te whanaketanga ohorere o te mate urutā i te tau 2020, i tino whakarerekē i te āhua o tō tātou noho me te mahi pakihi, kua pāngia hoki te arotahi ki ngā tuku tauwhiro i roto i te umanga matū. Kei te whakatinanahia ngā herenga hou i ngā taumata tōrangapū teitei i runga i ētahi whenua, me arotake e ngā pakihi ā rātou rautaki, ā, ka tirotirohia ngā herenga tauwhiro tae noa ki ngā taipitopito. Ā, kei roto i ngā taipitopito ka kitea ngā otinga ki te āwhina a ngā hangarau ki te whakatutuki i ngā hiahia o te tangata me ngā pakihi i roto i te huarahi tauwhiro. Me pēhea te whakamahi me te whakakotahi i ngā hangarau i roto i ngā huarahi hou, hei tauira, te whakakotahitanga o te hangarau UV me ngā pūnaha wai.
Te pana taiao a te hangarau whakamaroke UV
I whakawhanakehia te hangarau whakamaroke UV i ngā tau 1960 mā te whakamahi i ngā matū kāore i te mākū hei whakamaroke mā te whiti ki te mārama UV, ki ngā hihi hiko rānei (EB). E kiia ana ko te whakamaroke irahiko, ko te painga nui ko te whakamaroke tere me ngā āhuatanga paninga pai rawa atu. I ngā tau 1980, i whanake te hangarau, ā, i tīmata te whakamahi i runga i te tauine arumoni. I te pikinga ake o te mōhiotanga ki te pānga o ngā whakarewa ki te taiao, i piki ake hoki te rongonui o te whakamaroke irahiko hei huarahi ki te whakaiti i te nui o ngā whakarewa e whakamahia ana. Kāore tēnei ia i puhoi, ā, kua piki haere tonu te whakamahinga me ngā momo tono mai i taua wā, me te tono hoki mō te mahi me te pumau.
Te neke atu i ngā whakarewa
Ahakoa he hangarau tino pumau te whakamaroke UV i roto i a ia anō, me whakamahi tonu ētahi tono i ngā whakarewa, i ngā monomer rānei (me te mōrearea o te hekenga) hei whakaiti i te matotoru kia pai ai te hua ina pania te paninga, te mangumangu rānei. Nō nā tata nei, i puta te whakaaro ki te whakakotahi i te hangarau UV me tētahi atu hangarau pumau: ngā pūnaha wai. Ko te nuinga o ēnei pūnaha he momo wairewa-wai (mā te wehenga ionic, mā te hototahi whakaranu rānei ki te wai) he momo PUD (polyurethane dispersion) rānei, e whakamararatia ana ngā pata o te wāhanga kore-whakaranu ki roto i te wai mā te whakamahi i tētahi kaihoko whakamarara.
I tua atu i te paninga rakau
I te tīmatanga, ko ngā paninga UV wai-wai te nuinga o te wā i whakamahia e te umanga paninga rakau. I konei, he māmā noa te kite i ngā painga o te whakakotahi i ngā painga mai i te tere whakaputa nui (ki te kore-UV) me te ātete matū teitei me te VOC iti. Ngā āhuatanga nui i roto i ngā paninga mō ngā papa me ngā tāonga. Heoi, i ēnei rā kua tīmata ētahi atu tono ki te kite i te kaha o te UV wai-wai. Ka taea e te tānga matihiko UV wai-wai (waituhi waituhi) te whai hua mai i ngā painga o ngā waituhi wai-wai (te matotoru iti me te VOC iti) me ngā waituhi whakamaroke UV (whakamaroke tere, taumira pai me te ātete matū). Kei te tere haere te whanaketanga, ā, he maha atu pea ngā tono ka arotake wawe i ngā āheinga o te whakamahi i te whakamaroke UV wai-wai.
He maha ngā paninga UV wai kei ngā wāhi katoa?
E mōhio ana tātou katoa kei te anga atu tō tātou ao ki ētahi wero kei mua. I te tipu haere o te taupori me te pikinga o ngā paerewa oranga, ka nui ake te hiranga o te whakamahinga me te whakahaere rauemi i mua. Ehara te whakamaroke UV i te whakautu ki ēnei wero katoa engari ka taea te waiho hei wāhanga o te panga hei hangarau whai hua mō te pūngao me te rauemi. Me whakamahi ngā hangarau tuku iho e kawe ana i te whakarewa i ngā pūnaha pūngao teitei mō te whakamaroke, me te tukunga o te VOC. Ka taea te whakamaroke UV mā te whakamahi i ngā rama LED iti te pūngao mō ngā waituhi me ngā paninga kāore he whakarewa, e ai ki tā tātou i ako ai i roto i tēnei tuhinga, mā te whakamahi noa i te wai hei whakarewa. Mā te whiriwhiri i ngā hangarau me ngā huarahi kē atu e mau tonu ana te oranga ka taea e koe te tiaki i tō papa kīhini, i tō whata pukapuka rānei me te paninga mahi teitei, engari ka tiakina hoki, ka mōhio hoki ki ngā rauemi iti o tō tātou ao.
Wā tuku: Mei-24-2024
