Ka tēnā tātou i te whakamārama i te kōwhaiwhai, te rūpahu kai, me te pouaka kōwhai, ka hoki haere tātou ki te whakaaro mō te āheitanga o ngā wāhanga. He momo kōwhai e pā ana ki a tātou nui atu i ngā rā o te ao, ko te poliētīhēne. Kei roto i ngā mea nui o ēnei kua whakamahia e tātou i a tātou tonu, pērā i ō tātou tākaro, ngā whakapakoko kai, me ngā mea hanga i tēnei ao. Poliētīhēne pātai: Kua whakaaro koutou i mua i a koe i ngā whenua e whakamahia ana kia tuhi ai te poliētīhēne? Haere mai ki te whai i tēnei mahi mātau!
Ki te whakato i te poliētīhena, me neke atu matou ki ngā rawa āhuarangi e tika ana, ko ngā rawa tuatahi ko te gas o te whenua me te pūmau. Ko ēnei ngā hanganga mō ngā rawa nui e whakamahi ana kia whakatō ai te poliētīhena. Waehanga # 1: Ka mahi te mahinga o te whakawheko hei whakato i te poliētīhena. Ki te mahi nei i te waehanga, ka wera ngā rawa āhuarangi me te hurihia he hau e kitea ai hei ethylene. He mea nui tenei huringa, no reira ko te ethylene te tuapeka ki te poliētīhena. I muri i te hokinga mai o te hau o te ethylene, me whakawehewehea ki ngā raupapa roa, i mua i te mea ka whakatōnga ano he poliētīhena.
Ko te polietileeni i whakapuaki mai i te waihika nui me te ga haupapa. E rite ana ngā rara nei ki ngā toto pūngao. I muri i te wa i kaiponohu mai i raro i te whenua, ka hoatu ki ngā whare hanga - e titiro ana ngā whare kē ki ngā whare petrokemikari. Ko tēnei hoatu e ai ki ngā paerewa roa me ngā waka e hoatu ana i ngā momo rawa nui o ēnei rara. Ka whakawhitiwhiti ngā rara matua i runga i tētahi mahi whakamahitahi e mōhiotia ana ko te 'cracking' ki roto o ngā whare petrokemikari. Ki te whakamahi i te huringa paihoro nui me te whatu nui, ka whakatanga i ngā rara matua hei take iti, kia puta ai te hau etihēna e hiahiatia nei.
Te wāwae atu ai te hau etihēne ki tētahi wāhi whakamahinga e rite ana ki te kōrero nei he reka pōlima. Kei reira, ka hēraia te mākutu! Ka whai tahi ngā moeʻtu etihēne me te whakapapa i roto i te reka pōlima hei hanga i ngā take roa. Ko te poliehēne te mea e mahi ai i ngā take roa nei. I te mutu te mahi katoa, ka tomo te kaiwhakatupu i runga i ngā pereki iti. Ka haere ngā pereki nei ki ngā kaiwhakahaere pūtake wehe pēnei i a Yuezheng, ā, ka whakamahia ko ngā momo mahi e rua o ngā kaiwhakahaere poliehēne.
Kei te whai ake tētahi āhuatanga nui o te polietilini i te whakauru mai i ngā mokemoke roa. Nā te mea he nui te nohoanga o ēnei mokemoke ki te whanaketanga o te polietilini. No reira, ko te roa o ngā mokemoke e rite ana ki te whanaketanga o te rauropi. Ko tēnei āhuatanga ka karangahia he karepe, e hīnā ana i te mea ka taea te poroiti, te tāwari hoki i te polietilini ki te kore e pireno. Kei te whai huarahi anō hoki ia i ētahi atamai me te itinga whaiaro, e whai take ana i tana oranga roa. Ko te polietilini he rauropi nui rawa te whakamahia, e mana ai tana tūmanako me tana karepe, ka pai hei rauropi mō ētahi atu mahi pērā i ngā rara moeawe, ngā purei, me ētahi atu taonga whare.
Kei te whakaaetanga tētahi kauwhata o ngā āhuatanga e hangoa mai i te roro para, nō te wai māori rānei. Nui rawa ngā āhuatanga nei hei whakamahia i roto i ētahi atu whenua, pērā i ngā mahi whanonga, ngā rongoā, ngā mahi whenua, me te haere. Ko ētahi atu o ēnei āhuatanga - ko te etane me te propene, hei tauira - ka whakamahia ki te hanga i te etilini, e hiahiatia ana ki te hanga i te polietilini. Nō reira, kei roto i te nuinga o ngā mea e kai ai tātou, mai i ngā mea para ki ngā rongoā, he āhuatanga para, ko tēnā ka whakaū i te nohoanga o te whenua āhuatanga para ki tā tātou oranga.
Ko te etihene tētahi o ngā pūtake matua mō te whakato i te poliētihene. Ka hangaia i te whakamahi i te hau rānei, i te pūmau kai rānei; ko ia te pūtake e hiahiatia ana kia whakato i te poliētihene. Ko te etihene he waea kore rangi, e huna ana i te haere me te hara i te ingoa reka, ā, e whakapūhuruhuru ana, nō reira me whakangungutia. Nā te mea nei, ka whakamahi ngā pūnaha hanganga i tēnei waea i roto i ngā mahi tuhinga nui, ka tae noa ki te whakato i ngā kete hauwai me te whakapiri kai. Ko te etihene tētahi o ngā poupou matua o te whakato petrohemika, nāna i runga i ōna āhuatanga taumata. Nā reira, ka whakamahia e ngā kāwanatanga me te Yuezheng etihene pai rawa kia whakato i ngā mea poliētihene pai utu.
Te Tirohanga © Yuezheng Plastic Color Masterbatch (Dongguan) Co., Ltd. Nga Rangatiratanga Katoa Whakaritea
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