Ko te polythene tētahi o ngā kirihou rongonui o te ao. He polymer maha-whakamahinga e tika ana mō ngā momo mahi maha, mai i ngā kiriata ārai makuku taumaha mō ngā hanganga hou ki ngā putea me ngā kiriata māmā, ngāwari hoki.

E rua ngā momo matua o te PE e whakamahia ana i roto i te rāngai kiriata me te takai ngāwari – ko te LDPE (iti te matotoru), e whakamahia ana mō ngā papa me ngā kiriata taumaha pērā i ngā putea me ngā pēke roa te ora, ngā kauhanga polyethylene, ngā kiriata tiaki, ngā putea kai, me ētahi atu.HDPE (kiato teitei), Mō te nuinga o ngā putea angiangi, ngā putea hua mata, me ētahi pounamu me ngā taupoki.

Tērā atu anō ētahi momo o ēnei momo matua e rua. He pai ngā āhuatanga ārai kohu, ārai makuku rānei o ngā hua katoa, ā, he koretake hoki ā rātou matū.

Mā te whakarerekē i ngā hanganga me ngā whakaritenga o te polyethylene, ka taea e ngā kaihanga/kaitukatuka te whakarerekē i te ātete ki te pānga me te haehae; te mārama me te āhua; te ngāwari, te āhua, me ngā āheinga paninga/whakakikorua/tā. Ka taea te hangarua te PE, ā, he maha ngā putea para, ngā kiriata ahuwhenua, me ngā hua roa te ora pērā i ngā paepae pāka, ngā poupou, me ngā pouaka para e whakamahi ana i te polyethylene hangarua. Nā te nui o tōna uara wera,Ngā tuku PEte whakaora pūngao tino pai mā te tahunga ma.

Kei te hiahia koe ki te hoko HDPE?

tono
Ngā oko matū, ngā ipu kirihou, ngā pounamu karāhe, ngā taonga tākaro, ngā taputapu pikiniki, ngā taputapu mō te whare me te kīhini, te taura whakamahana, ngā putea tote, ngā rauemi tākai kai.

āhuatanga
Ngāwari, mārama/ware pi, ātete ki te huarere, pakari pai i te pāmahana iti (ki te -60′C), ngāwari ki te tukatuka mā te nuinga o ngā tikanga, iti te utu, ātete matū pai.

ngā āhuatanga ā-tinana
Kaha kume 0.20 – 0.40 N/mm²
Kaha pānga whakakoi me te kore whati Kj/m²
Tauwehenga o te Whānuitanga Wera 100 – 220 x 10-6
Te pāmahana whakamahinga tonu mōrahi 65 oC
Kiato 0.944 – 0.965 karamu/cm3

ātete matū
Waikawa waimeha****
Pūtake kua waimeha ****
Hinu ** Taurangi
Ngā hauwaiwaihā aliphatic *
Ngā mea kakara *
Ngā warowaihā whakahāora *
Ngā Waipiro****

Arohaehae * Kino ** Waenga *** Pai **** Tino Pai

Ngā rangahau take o nāianei

He mea hanga ngā ipu māra ki te polyethylene matotoru. He iti te utu, he pakari, ā, he ngāwari ki te pupuhi, he mea pai tēnei rauemi mō ngā taonga māra.

Pounamu kirihou HDPE
He mea rongonui ngā pounamu kirihou polyethylene matotoru (HDPE) mō ngā mākete miraka me te wai hou. Hei tauira, i te UK, e 4 piriona ngā pounamu whāngai HDPE e hangaia ana, e hokona ana hoki i ia tau.

He maha ngā painga o te HDPE ki ngā kaihanga, ki ngā kaihokohoko me ngā kaihoko.

Ngā painga o ngā pounamu HDPE
Ka taea te hangarua: Ka taea te hangarua 100% ngā pounamu HDPE, nō reira ka taea te whakamahi anō i te rauemi

Tauwhiro: Ka tukuna e te HDPE te whai wāhitanga ki te whakauru anō i ngā rauemi hangarua ki roto i te mekameka tuku

Te Whakamāmā Māmā: He Huarahi Whakamāmā Nui kei ngā Pounamu HDPE

He tino ngāwari ki te urutau: koinei anake te pounamu kirihou ka taea te whakamahi hei paparanga miraka kua whakamāoritia, hei UHT rānei, hei pounamu miraka kua whakamāoritia rānei kua whakakotahihia te arai

Ngāwari ki te whakamahi: Ko te momo takai anake e taea ai te whakauru i ngā kakau me ngā kōhao ringihanga mō te pupuri me te ringihanga whakahaere

Haumaru, ā, he tūpato: Ko te momo kete anake ka taea te whai hiri ā-waho ārai-whakarerekē, hiri wera rānei hei ārai i ngā turuturu, hei pupuri i te hou o te hua, me te whakaatu i ngā tohu o te whakarerekētanga.

Tauhokohoko: He whānuitanga o ngā whai wāhitanga hokohoko kei roto i ngā pounamu HDPE, pērā i te tā tika ki runga i te rauemi, te tā tika ki runga i te ringaringa, i te tapanga rānei, me te āheinga ki te whakarerekē i te āhua kia kitea nuitia ai i runga i te whata.

Auahatanga: Ko te kaha ki te pana i ngā rohe me te whakatutuki i ngā taumata hou mā te whakamahi auaha i ngā taputapu pupuhi whakarewa.

ngā meka taiao
Ko ngā pounamu pēpi HDPE tētahi o ngā taonga tākai e whakamahia whānuitia ana i te UK, e whakaatu ana ngā raraunga mai i Recoup e 79% o ngā pounamu pēpi HDPE e whakamahia whānuitia ana.
I te toharite,Ngā pounamu HDPEi te UK he 15% te mama ake i tō rātou āhua i ngā tau e toru ki muri

Heoi, nā ngā hoahoa auaha pērā i te pounamu Infini toa-toa, ka taea te whakaiti i te taumaha o ngā pounamu paerewa tae atu ki te 25% (i runga i te rahi)

I te toharite, kei roto i ngā pounamu HDPE i te UK te 15% o ngā rauemi hangarua.

Heoi, nā te whanaketanga o te hangarau me ngā hoahoa auaha o ngā hua, kua taea ngā whakatutukitanga hou. Hei tauira, i te tau 2013, i tāpirihia e Nampak te 30 ōrau o te HDPE hangarua ki āna pounamu miraka Infini, koinei te tuatahi o te ao—e rua tau i mua i te whāinga a te umanga.