PE e whai ake ana i te polyethylene. Ko tēnei he mīhini āmioiti noa iho nō te whakamahi hei hanga i ētahi mea hou o te ao katoa. Ka kitea ai te PE ki ngā pūtake kaiwhakaatu i a koe i te wā i mahi kai, ki ngā pūoro i mahi i ngā inu, ā, hoki hākuina ki ngā paiaka tamariki. Nā te mea ko te PE he ihu hakiwai, ahakoa iti, ka whakaae mai ki te hanga. Ko ia te mea e āwhina nei i a tātou i te kawe kai, i te inu i ō mahi whakapai, me te whakanui i ngā wā kawea.
Ko te HDPE kei raro i te high-density polyethylene. He roa rawa atu te toenga o tēnei mīhini i runga i te PE nui. Ko te HDPE ka whakamahia hei hanga i ētahi hua matua e hiahiatia ana te toenga. Hei tauira, ko tēnei i whakamahia tonu hei hanga i ngā paemata wai i tahitia ai te wai kaiwhaiora ki ō tāone. Whakamahia anō hoki i ngā komihana motokā hei whakatika i ngā momo pāpori me ngā momo pākiri. Nā te toenga o te HDPE, ko ia te mea whakapono hei whakakapi i ēnei hua matua e hiahiatia ana te haumanu me te whakatika.
PE whakatupu iti – Polyethylene whakatupu iti. He momo rima nui atu hoki te PVC, e tū mai ana i waenganui i te PE me te HDPE, nō reira ko tētahi āhuatanga ake te māhoratanga me te motu. Ki te tau ki ngā mahi e hiahiatia ana ki te mātau ki te rama wawe, ka whakamahi i te LDPE hei hanga i ngā mea e hiahiatia ana ki te rama wawe rānei. Ka whakamahia te LDPE ki te whakaputu kai, ka noho pai ai te kai, ā, ki ngā pōro tuhinga e taea ana te tahua i te tomatai rānei te piripiri. Ko tētahi whakaaetanga pai mō ngā mea e hiahiatia ana ki te motu, pērā i ngā pouaka kai e taea ana ki te neke i ngā mea katoa ki te kore e tahutahu. Heoi, kaore te LDPE i te whanaketanga o te HDPE, nā reira kaore ia i whakamahia mo ngā mea nui rawa, e hiahiatia ana ki te takahi i te nui o te pāpori.
Nā tātou i kōrero, he nui te rangatiratanga o te HDPE, ā, ko tēnei tētahi wāhanga o te hēenga i a mātou ki te whakamahi i a ia i ngā wāhi matua. Hei tauira, i tētahi mea pērā i te pīpu wai rānei, nō te wā whakahaere āhua motokā, kāore te ahumiro e pai ana kia tahuri i te pākē ki te kuhu atu ki te muru. Ki runga hoki i te ahumiro iti, ka uiui koe i te whanuitanga rānei, ka ea mai ki ngā take nui. Nā tēnei, i ēnei wā, ko te HDPE te hunga rawa te whakaaro hei whakamahi. Ko tana whaiwāhi kei te whiwhi i te whakapono e pai ai te mahi me te haumaru o ngā mea nui.
Kei roto i te nuinga o ngā mea hē ki te whare mō tēnā e whai wāhi ana i a tātou i ia rangi. Ka kite koe ia i te rama rīwai e whakamahia ana ki te tiaki i ngā kai whakaaetanga hei ora, nō te mea he momo rama e āhei ana ki te paku. Ko te polietilini iti tonu, he take LDPE, e hiahia ana ki te whakamahi i runga i ngā mea e hiahiatia ana kia kawea, kia taumanu, pērā i ngā pouaka rama e whakamahia ana mo ngā kai. Heoi, me whakaaro nui koe, ko te LDPE kaore he whanaua rawa i te HDPE. E ai ki tēnei, kaore tātou e whakamahi ana i a ia mo ngā mea e hiahiatia ana kia tūpato nui, pērā i ngā toto ukaipo rānei, nō te mea he mea motuhake te whakamahi. Kāore ia he pai ki ngā mea e hiahiatia ana kia kawea.
Ahakoa e whai ana ēnei rākau katoa o ngā pūkorero i tōna whakamīharo ki tō tātou oranga, ka taea hoki e rātau te whakatupu i heke nui ki te taiao. Hei tauira, ka taea te whakawehenga i te pūkorero ki ngā pūkorero PE, hei tauira, ēngari ka whai muri ko ngā pūkorero kē i roto i ngā kete, ngā pūkaipaipa me era atu, he wāhanga nui o ngā take whakaitiwhenua. Kaore ngā pūkorero nei i te whakarereake nui i te waewae mai nei. Ko tēnā ka noho tonu rātau i runga i ngā whenua whakarongo i te wā, ko tēnā hoki ka kitea te ara ki ā tātou moana, whakapakaruia ai ngā kararehe me te taiao. Nā tēnei me whakahaumanu tātou i ēnei pūkorero i te wehewehe. E awhina ana te whakahaumanu ki te iti i ngā pūkorero whakaitiwhenua, ā, ka tiakina tātou me tō tātou whenua.
Ki te mea he nui ngā whakamomori e pā ana ki te taiao mō ngā rorohiko PE, nānā hoki ki te noho i roto i tēnā i tēnā o mahi kua kitea e mātou i a tātou tonu i te oranga. Ki te whai ake he mōhiohio nui ake mō ēnei momo whakahē, ka puta ake he aroha ake mo ngā whiringa pai ake, e hiki ake ana ki te oranga nui ake. E hanga ana i ngā momo rorohiko hou hei whakarite i te whakatata ki te whenua, ko te mea hoki e iti rawa i te whakaputu mai ki te taiao. Ko te hunga hou nei kei aua rerekē he tūmanako nui ki te whakatika i ngā rerekē e pāngia ana e ngā rorohiko tawhito. Nā reira, me whai ake mātou i te whakahaere i te whakatupu i ēnei momo hou hei whakaiti i tō mātou hiranga ki ngā rorohiko pēnā pea ko te PE, HDPE me te LDPE.
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