Ko te LDPE he polyethylene iti ngā rahi, ko te HDPE he polyethylene nui ngā rahi. Nā ngā mahi whakamahinga me ngā rārangi i roto i ēnei mīhini plastikunga te take i ngā wahitanga. Ko te whakauru o te LDPE he rite nui ki te whai take e whakangungu ana i tēnei, me te wehi kei runga i tēnei. Nō reira, ko te LDPE he pai tōna mo ngā momo kai hoki e hiahiatia ana te kawe, te whakapae, rānei. Ki te wero atu, ko te HDPE he rārangi tika rawa ake, he mea nui tēnā i whakamana ai ia, ka puta mai te whakamana me te rahi nui. E whakaatu ana tēnei, ko te HDPE he pai hei whakamahia mo ngā mea e hiahiatia ana te whakamana me te pūmau.
Pēhea nei, kia tīmata tātou ki te rauropi LDPE. Ko te rauropi LDPE he momo rauropi nui rawa hoki i whakamahi ai i ngā mea mōrearea nui. Hei tauira, ko tēnei i whakamahia noa iho hei hanga pūkeko, hei karu kai, ā, hei āhuatanga katoa mō ngā mahi whakapakoko. He mea nui ake o tēnei rauropi LDPE, ko tana hokinga, ka taea e ia te whanake iti noa, karekau e whati. Nā tērā, he pai noa ia hei whakapakoko kai, inā ka taea te whakatūpato i ngā pūkeko LDPE kia mau ai te reka o te kai. Whakaarohia mai ngā mea e pakako ana i ō hokomaha—nui rawa atu te waehanga o ēnei pūkeko i hangaia i te LDPE!
Kei reira ēnei mīhini katoa ō rātou pai me ngā take. Pai o te LDPE Ko ia te nui ake i te HDPE, nō reira ka āhei ia ki te whakamahi mo ngā momo katoa. He iti noa iho te utu kia hanga, e āwhina ana i te whakaiti i ngā utu i runga i ngā raraunga nui. Ā, ka taea e te LDPE te whakahoki! E hoko nei, ka tuhono atu ki te whakamahia anō i muri i te whakamahi, ka hoki whakamua ki te hanga i ngā raraunga hou rānei pea ka tangohia.
Engari ko te hē o te LDPE he hē anō hoki. Ko tana hekenga i runga i te HDPE he whakatūroro nui. Ka puta tenei i te LDPE hei mea iti noa iho ki te tahuri, ki te kawe pukapuka, kaore e pai rawa mo nga mea e hiahiatia ana kia mau tonu. A, ka taea e te LDPE te whakahokia, engari kaore ia i te ora i roto i te whenua. Ma te mea ka tangohia te plastiketi nei ka haere atu ki te paheke whenua e pai ana, ka whai ake i raro i ngā rau tau, a, ka whai ake i te mano tau ki te wera iho, kaore i pai mo to tatou whenua.
Ki tetahi waa ke, he pai hoki te HDPE. He mea tuwhera nui, he mea whanuitanga te plastiketi nei, he mea iti noa iho ki te tahuri, ki te kawe pukapuka. Noho ai te HDPE hei whakamutunga i nga mea purengi, i te maramara UV, ka whai ake he whakamahi nui i waenganui i nga taiao, penei i nga kawinga takaro me nga whare whakarato. Ko tenei whanuitanga te take i te mea ka noho ake nga mea HDPE i te wā e hirahira ana, ahakoa i te waahi waho.
Nā ngā āhuatanga o ngā pūkeko LDPE me ngā HDPE e whiwhi ana i te tūranga pai mō ētahi whakamahi kē. Ko te LDPE he pūkeko mā, he wawata, he hīnaki mea nō reira ko tērā e whakaaro nei he pai tino mō te whakapakoko. Nō te mea ka noho waihanga ea ki ēnei rite ā-waha, ko tērā te take i te kitea ai ia i roto i ērā mea kē. Ka whakamahia tēnei i runga i ngā mahi hanga, hei tauira, kei reira e kawe ana i te kaupeka poroporoaki hei whakaiti i te wai māori ki roto i ngā whare.
Ki runga i tērā, ko te HDPE he pūkeko whatumanawa me te whakatika pai. Ka whakamahia tēnei i ngā whakamahi e hiahiatia ana ngā hiranga matangaro ranei. I runga i ngā mahi hanga, ka whakamahia te HDPE mō ngā mea ā-mutunga kotahi pērā i ngā toto uku whakaroto, ngā kere kererū me ngā tahuhu vinil. [Tāpiritia: Ngā Tauturu Fleece Rerekē Kei a Tatou E Hiahia Ana Ki te Whakakapi] Kua taea e ēnei mea te whakatika pai ki te whakamana i te wā me ngā huringa whenua.
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