Ka wehewehe ʻana o HDPE
ʻO HDPE ka huaʻōlelo pōkole i hoʻohana pinepine ʻia e pili ana i ka polyethylene density kiʻekiʻe. Ke kamaʻilio pū nei mākou e pili ana i nā papa PE, LDPE a i ʻole PE-HD. He mea thermoplastic ka Polyethylene i loko o ka ʻohana o nā plastics.
Aia nā ʻano polyethylene like ʻole. Ua wehewehe ʻia kēia mau ʻokoʻa e ke kaʻina hana e ʻokoʻa ai. Ke kamaʻilio nei mākou e pili ana i ka polyethylene:
• haʻahaʻa ka nui (LDPE)
• ka nui o ka mānoanoa (HDPE)
• ka nui waena (PEMD).
Eia kekahi, aia kekahi mau ʻano polyethylene ʻē aʻe: chlorinated (PE-C), me ke kaumaha molekala kiʻekiʻe loa.
Ua hoʻonohonoho ʻia kēia mau ʻōlelo pōkole a me nā ʻano mea āpau ma lalo o ka aegis o ke kūlana 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!
Hana ʻia ka palaki HDPE mai ka hana ʻana o ka petroleum. No kāna hana ʻana, pili ka HDPE i nā ʻanuʻu like ʻole:
• hoʻoheheʻe ʻana
• ka haki ʻana o ka mahu
• ka polymerization
• granulation
Ma hope o kēia hoʻololi ʻana, ua keʻokeʻo waiū ka huahana, he moakaka. A laila maʻalahi loa ke hoʻoponopono a hoʻoluʻu paha.
Nā hiʻohiʻona hoʻohana HDPE ma ka ʻoihana
Ma muli o kona ʻano maikaʻi a me nā pono, hoʻohana nui ʻia ʻo HDPE i nā ʻano hana like ʻole.
Loaʻa ia ma nā wahi a puni mākou i ko mākou ola o kēlā me kēia lā. Eia kekahi mau laʻana:
Ka hana ʻana i nā ʻōmole plastik a me nā ʻōpala plastik
Ua kaulana ʻo HDPE i ka ʻoihana meaʻai, ʻoi aku hoʻi no ka hana ʻana i nā ʻōmole palakiko.
He ipu maikaʻi loa ia no ka meaʻai a mea inu paha a no ka hana ʻana i nā poʻi ʻōmole. ʻAʻohe pilikia o ka haki ʻana e like me ke aniani.
Eia kekahi, ʻo ka ʻōpala palaki HDPE he pōmaikaʻi nui loa ia o ka hiki ke hana hou ʻia.
Ma waho aʻe o ka ʻoihana meaʻai, loaʻa ka HDPE ma nā ʻāpana ʻē aʻe o ka ʻoihana ma ke ʻano laulā:
• e hana i nā mea pāʻani,
• nā pale palaki no nā puke memo,
• nā pahu mālama
• i ka hana ʻana i nā waʻa-kayaks
• ka hana ʻana o nā buoys beacon
• a me nā mea ʻē aʻe he nui!
HDPE ma 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 waiwai kūpaʻa i nā kemika. Ua ʻōlelo ʻia he inert kemika.
No laila, e lawelawe ia ma ke ʻano he ipu:
• no nā shampoos
• nā huahana hale e hoʻohana pono ʻia
•ka holoi ʻana
• ʻaila mīkini
Hoʻohana ʻia nō hoʻi ia e hana i nā ʻōmole lāʻau lapaʻau.
Eia kekahi, ʻike mākou he ʻoi aku ka ikaika o nā ʻōmole i hana ʻia i ka polypropylene i kā lākou mālama ʻana i nā huahana ke kala ʻia a i ʻole ka pigment.
HDPE no ka ʻoihana kūkulu hale a me ke alakaʻi ʻana o nā wai
ʻO ka mea hope loa, ʻo kekahi o nā wahi ʻē aʻe e hoʻohana nui ana i ka HDPE ʻo ia ke kahua o nā paipu a me ka ʻoihana kūkulu hale ma ke ʻano laulā.
Hoʻohana nā loea hoʻomaʻemaʻe a i ʻole ke kūkulu ʻana iā ia e kūkulu a hoʻokomo i nā paipu e hoʻohana ʻia no ka hoʻokele ʻana i nā wai (wai, kinoea).
Mai ka makahiki 1950, ua pani ʻia nā paipu HDPE me nā paipu kēpau. Ua pāpā mālie ʻia nā paipu kēpau ma muli o kona ʻawahia i ka wai inu.
ʻO ka paipu polyethylene kiʻekiʻe-density (HDPE), ma ka ʻaoʻao ʻē aʻe, he paipu ia e hiki ai ke hōʻoia i ka hoʻolaha ʻana o 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 ke kūʻē ʻana i nā loli o ka mahana o ka wai i loko o ka paipu, ʻaʻole like me LDPE (low definition polyethylene). No ka hoʻolaha ʻana i ka wai wela ma mua o 60°, e huli mākou i nā paipu PERT (polyethylene kū i ka mahana).
Hiki nō hoʻi i ka HDPE ke lawe i ke kinoea ma o ka paipu, e hana i nā ducts a i ʻole nā mea hoʻoulu ea i loko o ka hale.
Nā pōmaikaʻi a me nā pōʻino o ka hoʻohana ʻana i ka HDPE ma nā kahua ʻoihana
No ke aha i maʻalahi ai ka hoʻohana ʻana i ka HDPE ma nā kahua paipu ʻoihana? A ma ke ʻano ʻē, he aha kona mau mea maikaʻi ʻole?
Nā pōmaikaʻi o ka HDPE ma ke ʻano he mea hana
He mea hana ʻo HDPE me kekahi mau waiwai maikaʻi e hoʻāpono ai i kona hoʻohana ʻia ʻana i ka ʻoihana a i ʻole ke alakaʻi ʻana o nā wai i loko o nā paipu.
He mea kūʻai haʻahaʻa ke kumukūʻai o ka HDPE no ke ʻano maikaʻi loa. He paʻa loa ia (ʻaʻole hiki ke haki) ʻoiai e noho māmā ana.
Hiki iā ia ke kū i nā pae mahana like ʻole ma muli o kāna kaʻina hana (nā mahana haʻahaʻa a kiʻekiʻe: mai -30 °C a i +100 °C) a ʻo ka hope loa he kūpaʻa ia i ka hapa nui o nā waikawa solvent i loaʻa iā ia me ka ʻole o ka hōʻino ʻia. e palupalu a hoʻololi paha.
E wehewehe kākou i kekahi o kona mau pono:
HDPE: he mea maʻalahi ke modular
Mahalo i ke kaʻina hana e hana ai i ka HDPE, kūpaʻa ʻo HDPE i nā mahana kiʻekiʻe loa.
I ke kaʻina hana ʻana, ke hiki i ka pae 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 ʻōmole no nā huahana hale a i ʻole e hoʻolako i nā paipu no ka wai e kū i nā mahana kiʻekiʻe loa.
ʻO kēia ke kumu e kūpaʻa ai nā paipu PE i ka pala a paʻa hoʻi i nā hopena kemika he nui.
He kūpaʻa loa ka HDPE a pale wai
ʻO kekahi pōmaikaʻi a ʻaʻole ka mea liʻiliʻi loa, he kūpaʻa loa ʻo HDPE!
• Kūʻē ka HDPE i ka pala: no laila, ʻaʻole e "pala" nā paipu e halihali ana i nā wai ikaika. ʻAʻohe loli o ka mānoanoa o ka paipu a i ʻole ke ʻano o nā mea hoʻopili i ka hala ʻana o ka manawa.
• Ke kū'ē ʻana i nā lepo huhū: ma ke ʻano like, inā he waikawa ka lepo a ua kanu ʻia kahi paipu, ʻaʻole paha e loli kona ʻano
• He kūpaʻa loa hoʻi ʻo HDPE i nā haʻalulu o waho e hiki mai ana: ʻo ka ikehu i hoʻoili ʻia i ka wā o kahi haʻalulu e hana i ka deformation o ka ʻāpana ma mua o kona hōʻino ʻana. Pēlā nō, ua hoʻemi nui ʻia ka pilikia o ka hāmare wai me HDPE
ʻAʻole komo ke kino o nā paipu HDPE: inā i ka wai a i ka ea paha. ʻO ke kūlana NF EN 1610 ia e hiki ai ke hoʻāʻo i ka paʻa o kahi paipu.
ʻO ka hope loa, ke kala ʻia i ka 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 pono hiki ʻole ke hōʻole ʻia: he maʻalahi ka lawe ʻana, hoʻoneʻe a mālama paha i nā paipu HDPE.
Eia kekahi laʻana, ʻo Polypropylene, hoʻokahi mika o ka paipu me ke anawaena ma lalo o 300 ke kaumaha:
• 5 kg i loko o ka HDPE
• 66 kg i loko o ka hao i hoʻolei ʻia
• 150 kg sima
ʻO kaʻoiaʻiʻo, no ka lawelawe ʻana ma ke ʻano laulā, ua maʻalahi ke kau ʻana o nā paipu HDPE a koi aku i nā lako māmā.
He kūpaʻa nō hoʻi ka paipu HDPE, no ka mea, he mau ia i ka hala ʻana o ka manawa no ka mea hiki ke lōʻihi loa kona ola (ʻoi aku hoʻi ʻo HDPE 100).
E hilinaʻi kēia ola o ka paipu i nā kumu like ʻole: ka nui, ke kaomi kūloko a i ʻole ka mahana o ke wai i loko. Ke kamaʻilio nei mākou e pili ana i 50 a 100 mau makahiki o ke ola lōʻihi.
Nā hemahema o ka hoʻohana ʻana i ka polyethylene density kiʻekiʻe ma kahi kahua kūkulu
I ka ʻaoʻao ʻē aʻe, aia nō hoʻi nā hemahema o ka hoʻohana ʻana i nā paipu HDPE.
Hiki iā mākou ke haʻi aku no ka laʻana:
• pono e akahele nā kūlana hoʻokomo i ka wā o ke kahua kūkulu: hiki i ka lawelawe ʻino ke make
• ʻaʻole hiki ke hoʻohana i ka hoʻopili ʻana a i ʻole ka wili ʻana e hoʻohui i ʻelua mau paipu HDPE
• aia kahi pilikia o ka ovalization o nā paipu i ka wā e hoʻohui ai i ʻelua paipu
• Hoʻopili ka HDPE i ke kani ma mua o nā mea ʻē aʻe (e like me ka hao i hoʻolei ʻia), kahi mea paʻakikī ke ʻike
• a pēlā e nānā ai i nā leaka. A laila hoʻohana ʻia nā kaʻina hana pipiʻi loa e nānā i ka pūnaewele (nā ʻano hydrophone)
• he mea nui ka hoʻonui wela me ka HDPE: hiki i kahi paipu ke hoʻololi ma muli o ka mahana
• he mea nui e mahalo i nā mahana hana kiʻekiʻe loa e like me nā ʻano o ka HDPE
Ka manawa hoʻouna: Sep-11-2022