ʻO ka Polythene kekahi o nā plastics kaulana loa ma ka honua. He polymer versatile ia e kūpono ana no nā ʻano hana like ʻole, mai nā kiʻiʻoniʻoni pale wai kaumaha no ke kūkulu hou ʻana a hiki i nā ʻeke māmā a palupalu a me nā kiʻiʻoniʻoni.

ʻElua ʻano nui o ka PE i hoʻohana ʻia ma ka ʻāpana kiʻiʻoniʻoni a me ka ʻāpana hoʻopili palupalu - LDPE (haʻahaʻa haʻahaʻa), i hoʻohana pinepine ʻia no nā pallets a me nā kiʻiʻoniʻoni hana kaumaha e like me nā ʻeke a me nā ʻeke ola lōʻihi, nā tunnels polyethylene, nā kiʻiʻoniʻoni pale, nā ʻeke meaʻai, a pēlā aku. aHDPE (nui kiʻekiʻe), No ka hapa nui o nā ʻeke ʻeke lahilahi, nā ʻeke huaʻai hou, a me kekahi mau ʻōmole a me nā pāpale.

Aia kekahi mau ʻano ʻē aʻe o kēia mau ʻano nui ʻelua. Loaʻa i nā huahana āpau nā waiwai pale mahu a i ʻole ka makū a he inert kemika.

Ma ka hoʻololi ʻana i nā ʻano hana polyethylene a me nā kikoʻī, hiki i nā mea hana/mea hana ke hoʻoponopono i ka hopena a me ke kūpaʻa i ka haehae; ka maopopo a me ka manaʻo; ka maʻalahi, ke ʻano, a me nā hiki ke uhi/laminating/paʻi. Hiki ke hana hou ʻia ka PE, a he nui nā ʻeke ʻōpala, nā kiʻiʻoniʻoni mahiʻai, a me nā huahana lōʻihi e like me nā noho paka, nā bollards, a me nā pahu ʻōpala e hoʻohana i ka polyethylene hana hou ʻia. Ma muli o kona waiwai calorific kiʻekiʻe,Nā hāʻawi PEhoʻōla ikehu maikaʻi loa ma o ke puhi ʻana maʻemaʻe.

Ke ʻimi nei e kūʻai i ka HDPE?

noi
Nā barela kemika, nā ʻōmole palaki, nā ʻōmole aniani, nā mea pāʻani, nā lako pikiniki, nā lako hale a me nā lako kīhini, nā mea hoʻomehana uwea, nā ʻeke tote, nā mea hoʻopili meaʻai.

ʻano
Hiki ke loli, ʻālohilohi/waxy, kūpaʻa i ka wā, paʻakikī maikaʻi i ka mahana haʻahaʻa (a i -60′C), maʻalahi e hana ʻia e ka hapa nui o nā ʻano hana, haʻahaʻa ke kumukūʻai, kūpaʻa kemika maikaʻi.

nā waiwai kino
Ikaika tensile 0.20 - 0.40 N/mm²
Ka ikaika hopena i hoʻopaʻa ʻia me ka ʻole o ka haki Kj/m²
Ka helu o ka hoʻonui wela 100 - 220 x 10-6
Ka mahana hoʻohana mau loa kiʻekiʻe loa he 65 oC
Ka nui o ke kaumaha 0.944 – 0.965 g/cm3

ke kūpaʻa kemika
ʻAkika hoʻoheheʻe****
Kumu i hoʻoheheʻe ʻia ****
ʻAila ** Hoʻololi ʻia
Nā hydrocarbons aliphatic *
Nā mea ʻala *
Nā hydrocarbons halogenated *
Nā ʻona****

Koʻikoʻi * ʻAʻole maikaʻi ** Waena *** Maikaʻi **** Maikaʻi Loa

Nā haʻawina hihia o kēia manawa

ʻO nā ipu māla i hana ʻia me ka polyethylene kiʻekiʻe. ʻO ke kumukūʻai haʻahaʻa, ka paʻakikī kiʻekiʻe a me ka maʻalahi o ka hoʻoheheʻe ʻana e hoʻolilo i kēia mea i koho kūlohelohe no nā lako māla.

ʻŌmole palaki HDPE
ʻO nā ʻōmole palakiko polyethylene kiʻekiʻe-density (HDPE) kahi koho hoʻopili kaulana no nā mākeke waiū a me ka wai hou. Ma UK, no ka laʻana, ma kahi o 4 biliona mau ʻōmole hānai HDPE e hana ʻia a kūʻai ʻia i kēlā me kēia makahiki.

Hāʻawi ʻo HDPE i nā pono he nui i nā mea hana, nā mea kūʻai aku a me nā mea kūʻai aku.

Nā pono o nā ʻōmole HDPE
Hiki ke hana hou ʻia: Hiki ke hana hou ʻia nā ʻōmole HDPE 100%, no laila hiki ke hoʻohana hou ʻia ka mea

Hoʻomau: Hāʻawi ʻo HDPE i ka manawa kūpono e hoʻohui hou i nā mea hana hou ʻia i loko o ke kaulahao lako

Hoʻomāmā maʻalahi: Hāʻawi nā ʻōmole HDPE i nā manawa kūpono koʻikoʻi no ka hoʻomāmā

Hiki ke hoʻololi koke ʻia: ʻo ia wale nō ka ʻōmole plastik hiki ke hoʻohana ʻia ma ke ʻano he monolayer waiū pasteurized, a i ʻole he ʻōmole UHT a i ʻole ka ʻōmole waiū sterilized i hoʻopili ʻia

ʻO ka maʻalahi o ka hoʻohana: ʻO ke ʻano o ka ʻōpala wale nō e ʻae ai i nā lima i hoʻohui ʻia a me nā lua ninini no ka paʻa ʻana a me ka ninini ʻana i kāohi ʻia

Palekana a paʻa: ʻO ke ʻano pūʻolo wale nō i hiki ke loaʻa kahi sila hōʻike waho a i ʻole kahi sila wela induction e pale aku i nā leaka, mālama i ka hou o ka huahana, a hōʻike i nā hōʻike o ka hoʻopunipuni ʻia

Kalepa: Hāʻawi nā ʻōmole HDPE i kahi ākea o nā manawa kūʻai aku, e like me ka paʻi pololei ʻana ma luna o ka mea, ka paʻi pololei ʻana ma ka lima lima a i ʻole ka lepili, a me ka hiki ke hoʻololi i ke ʻano e hoʻokaʻawale iā ia ma ka papa.

Hana Hou: ʻO ka hiki ke hoʻokuke i nā palena a hoʻokō i nā hanana hou ma o ka hoʻohana hou ʻana i nā lako hana hoʻoheheʻe puhi.

nā ʻoiaʻiʻo kaiapuni
ʻO nā ʻōmole pēpē HDPE kekahi o nā mea hoʻopili i hana hou ʻia ma UK, me ka ʻikepili mai Recoup e hōʻike ana ma kahi o 79% o nā ʻōmole pēpē HDPE i hana hou ʻia.
Ma ka awelika,Nā ʻōmole HDPEma UK i kēia manawa he 15% ka māmā ma mua o ʻekolu mau makahiki i hala

Eia nō naʻe, ʻo nā hoʻolālā hou e like me ka ʻōmole Infini lanakila i ka makana ʻo ia hoʻi hiki ke hōʻemi i ke kaumaha o nā ʻōmole maʻamau a hiki i ka 25% (ma muli o ka nui).

Ma ka awelika, aia i loko o nā ʻōmole HDPE ma UK a hiki i ka 15% o nā mea hana hou ʻia.

Eia nō naʻe, ʻo ka holomua o ka ʻenehana a me nā hoʻolālā hou o nā huahana ke ʻano he hiki ke hoʻokō hou ʻia. No ka laʻana, i ka makahiki 2013, ua hoʻohui ʻo Nampak i 30 pakeneka o ka HDPE hana hou ʻia i kāna mau ʻōmole waiū Infini, kahi mua o ka honua—ʻelua mau makahiki ma mua o ka pahuhopu o ka ʻoihana.