Wehewehe o HDPE
ʻO HDPE ka acronym i hoʻohana pinepine ʻia e kuhikuhi i ka polyethylene kiʻekiʻe. 'Ōlelo pū mākou no nā pā PE, LDPE a i ʻole PE-HD. ʻO ka polyethylene kahi mea thermoplastic i ʻāpana o ka ʻohana plastics.
Aia nā ʻano like ʻole o ka polyethylenes. Ua wehewehe ʻia kēia mau ʻokoʻa e ka hana hana e ʻokoʻa. Ke kamaʻilio nei mākou e pili ana i ka polyethylene:
• haʻahaʻa haʻahaʻa (LDPE)
• kiʻekiʻe kiʻekiʻe (HDPE)
• ka haʻahaʻa haʻahaʻa (PEMD).
Eia kekahi, aia nā ʻano polyethylene ʻē aʻe: chlorinated (PE-C), me ke kaumaha molekala kiʻekiʻe loa.
Hoʻonohonoho ʻia kēia mau pōkole a me nā ʻano mea ma lalo o ka aegis o ka maʻamau NF EN ISO 1043-1
ʻO HDPE ka hopena o kahi kaʻina hana kiʻekiʻe: High Density Polyethylene. Me ia, hiki iā mākou ke hana i nā mea pāʻani a nā keiki, nā ʻeke plastik, a me nā paipu i hoʻohana ʻia no ka lawe ʻana i ka wai!
Hoʻokumu ʻia ka plastik HDPE mai ka synthesis petroleum. No kāna hana ʻana, hoʻokomo ʻo HDPE i nā ʻanuʻu like ʻole:
• distillation
• ka māhā
• polymerization
• granulation
Ma hope o kēia hoʻololi ʻana, he keʻokeʻo ka waiū, translucent. A laila, maʻalahi loa ke hoʻohālikelike a waihoʻoluʻu paha.
ʻO nā hihia hoʻohana HDPE i ka ʻoihana
Mahalo i kona mau ʻano a me nā pono, hoʻohana ʻia ʻo HDPE i nā wahi he nui o ka ʻoihana.
Loaʻa ia ma nā wahi āpau a puni mākou i ko mākou ola i kēlā me kēia lā. Eia kekahi mau laʻana:
ʻO ka hana ʻana i nā ʻōmole plastik a me ka hoʻopili plastik
ʻIke maikaʻi ʻia ʻo HDPE i ka ʻoihana meaʻai, ʻoi aku hoʻi no ka hana ʻana i nā hue plastik.
He pahu maikaʻi loa ia no ka meaʻai a i ʻole ka mea inu a no ka hana ʻana i nā pāpale ʻōmole. ʻAʻohe pilikia o ka nahā e like me ke aniani.
Eia kekahi, ʻoi aku ka maikaʻi o ka hoʻopili ʻana i ka plastik HDPE i ka hana hou.
Ma waho aʻe o ka ʻoihana meaʻai, loaʻa ʻo HDPE ma nā ʻāpana ʻē aʻe o ka ʻoihana ma ka laulā:
• hana i nā mea pāʻani,
• nā pale plastik no nā puke puke,
• nā pahu mālama
• i ka hana ʻana i nā waʻa-kaʻa
• ka hana ʻana i nā pahu kukui
• a me na mea e ae he nui !
HDPE i ka ʻoihana kemika a me ka lāʻau lapaʻau
Hoʻohana nā ʻoihana kemika a me nā lāʻau lapaʻau i ka HDPE no ka mea he mau mea kūʻē kemika. Ua ʻōlelo ʻia he mea kemika.
No laila, e lilo ia i ipu:
• no nā shampoos
• nā huahana hale e hoʻohana me ka mālama
• holoi
• aila mīkini
Hoʻohana ʻia no ka hana ʻana i nā ʻōmole lāʻau.
Eia kekahi, ʻike mākou he ʻoi aku ka ikaika o nā ʻōmole i hoʻolālā ʻia i ka polypropylene i kā lākou mālama ʻana i nā huahana ke kala ʻia a ʻulaʻula paha.
HDPE no ka ʻoihana kūkulu hale a me ka hana ʻana i nā wai
ʻO ka mea hope loa, ʻo kekahi o nā wahi ʻē aʻe e hoʻohana nui nei i ka HDPE ʻo ke kahua o ka paipu a me ka ʻoihana kūkulu maʻamau.
Hoʻohana ka poʻe ʻoihana hoʻomaʻemaʻe a kūkulu hale paha no ke kūkulu ʻana a hoʻokomo i nā paipu e hoʻohana ʻia no ka hoʻokele wai (wai, kinoea).
Mai ka makahiki 1950, ua pani ka paipu HDPE i ka paipu alakai. Ua pāpā ʻia ka paipu kepau ma muli o kona ʻona i ka wai inu.
ʻO ka paipu polyethylene (HDPE) kiʻekiʻe, ma kekahi ʻaoʻao, he paipu e hiki ai ke hōʻoia i ka hāʻawi ʻana i ka wai inu: ʻo ia kekahi o nā paipu i hoʻohana nui ʻia no kēia hana hoʻolako wai inu.
Hāʻawi ʻo HDPE i ka pono o ka pale ʻana i nā ʻano like ʻole o ka wai i loko o ka paipu, ʻaʻole like me LDPE (polyethylene wehewehe haʻahaʻa). No ka hāʻawi ʻana i ka wai wela ma mua o 60 °, ʻoi aku ka maikaʻi o ka huli ʻana i nā paipu PERT (polyethylene kūpaʻa i ka mahana).
Hiki i ka HDPE ke lawe i ke kinoea ma ka paipu, e hana i nā ducts a i ʻole nā mea hoʻoheheʻe i loko o ka hale.
ʻO nā pono a me nā pōʻino o ka hoʻohana ʻana i ka HDPE ma nā kahua ʻoihana
No ke aha i maʻalahi ai ka HDPE ma nā kahua paipu ʻoihana? A ʻo ka mea ʻē aʻe, he aha kāna mau mea maikaʻi ʻole?
ʻO nā pono o HDPE ma ke ʻano he mea
ʻO ka HDPE kahi mea i loaʻa i kekahi mau waiwai maikaʻi e hōʻoiaʻiʻo i kona hoʻohana ʻana i ka ʻoihana a i ʻole ka hana ʻana o nā wai i ka paipu.
He mea kūʻai ʻole ʻo HDPE no ka maikaʻi hoʻohālike. ʻOi loa ka paʻa (ʻaʻole hiki ke wāwahi ʻia) ʻoiai e noho māmā ana.
Hiki iā ia ke pale i nā pae wela like ʻole ma muli o kāna kaʻina hana (nā wela haʻahaʻa a kiʻekiʻe: mai -30 °C a i +100 °C) a ʻo ka mea hope loa ke kūpaʻa i ka hapa nui o nā ʻakika solvent i loko o ia me ka ʻole o ka pōʻino. sag a hoʻololi paha.
E wehewehe mākou i kekahi o kāna mau pono:
HDPE: he mea maʻalahi modular
Mahalo i ke kaʻina hana e hana ana i ka HDPE, HDPE ke kū'ē i nā wela kiʻekiʻe loa.
I ka wā o ke kaʻina hana, ke hiki i ka helu heheʻe, hiki i ka mea ke lawe i kahi ʻano kūikawā a hoʻololi i nā pono o nā mea hana: inā paha e hana i nā hue no nā huahana hale a i ʻole nā paipu no ka wai e kū i nā wela kiʻekiʻe loa.
ʻO kēia ke kumu e kū ai nā paipu PE i ka corrosion a paʻa i nā hopena kemika.
ʻO HDPE ke kūpaʻa nui a me ka wai
ʻO kekahi pono a ʻaʻole ka mea liʻiliʻi loa, ʻo HDPE ke kūpaʻa loa!
• Kū'ē ka HDPE i ka ʻinoʻino: no laila, ʻaʻole e hoʻopili ʻia nā paipu e lawe ana i nā wai ikaika i ka "corrosion". ʻAʻole e loli ka mānoanoa o ka paipu a i ʻole ka maikaʻi o nā mea pono i ka manawa.
• Ke kū'ē i nā lepo koʻikoʻi: ma keʻano like, inā he waika ka lepo a kanuʻia kahi paipu,ʻaʻole hiki ke hoʻololi i konaʻano.
• ʻO ka HDPE ke kūpaʻa loa i nā haʻalulu o waho e hiki mai ana: ʻo ka ikehu i lawe ʻia i ka wā o ka haʻalulu e hoʻopōʻino ai ka ʻāpana ma mua o kona pōʻino. Pēlā nō, hoʻemi nui ʻia ka pilikia o ka hāmare wai me HDPE
ʻAʻole hiki ke paʻa nā paipu HDPE: i ka wai a i ka ea pū kekahi. ʻO ia ka maʻamau NF EN 1610 e hiki ai ke hoʻāʻo i ka paʻa o kahi paipu.
ʻO ka hope, ke kala ʻeleʻele, hiki i ka HDPE ke kū i ka UV
He māmā ka HDPE akā ikaika
No nā kahua paipu ʻoihana, ʻo ka māmā o HDPE he mea hiki ʻole ke hōʻole ʻia: He maʻalahi nā paipu HDPE e lawe, neʻe a mālama paha.
No ka laʻana, Polypropylene, hoʻokahi mika o ka paipu me ke anawaena o lalo o 300 kaumaha:
• 5 kg ma HDPE
• 66 kg i ka hao hao
• 150 kg kekona
ʻO ka ʻoiaʻiʻo, no ka lawelawe ʻana ma ka laulā, ua maʻalahi ka hoʻokomo ʻana o nā paipu HDPE a koi i nā mea māmā.
He kūpaʻa nō hoʻi ka paipu HDPE, no ka mea, lōʻihi ka lōʻihi o kona ola ʻana (ʻoi loa ka HDPE 100).
E pili ana kēia ola o ka paipu i nā kumu like ʻole: ka nui, ke kaomi kūloko a i ʻole ka mahana o ka wai i loko. Ke kamaʻilio nei mākou e pili ana i 50 a 100 mau makahiki o ka lōʻihi.
ʻO nā hemahema o ka hoʻohana ʻana i ka polyethylene kiʻekiʻe ma kahi kahua kūkulu
Ma ka ʻokoʻa, aia nō nā hemahema o ka hoʻohana ʻana i ka paipu HDPE.
Hiki iā mākou ke haʻi no ka laʻana:
• pono e noʻonoʻo pono nā kūlana hoʻokomo i ka wā o ke kahua kūkulu: hiki ke make ka hana ʻino
• ʻaʻole hiki ke hoʻohana i ka gluing a i ʻole ka wili e hoʻohui i ʻelua paipu HDPE
• aia ka pilikia o ka ovalization o nā paipu i ka wā e hui ai i ʻelua paipu
• Hoʻopili ʻo HDPE i ke kani ma mua o nā mea ʻē aʻe (e like me ka hao hao), ʻoi aku ka paʻakikī o ka ʻike
• a pēlā e nānā ai i nā leaks. Hoʻohana ʻia nā kaʻina hana nui e nānā i ka pūnaewele (nā ʻano hydrophone)
• He mea nui ka ho'onui wela me HDPE: hiki ke ho'ololi i ka paipu ma muli o ka wela
• he mea nui e mahalo i na wela hana kiekie e like me na ano o ka HDPE
Ka manawa hoʻouna: Sep-11-2022