He aha ka mea HDPE? Ka nānā 'ana i nā hi'ohi'ona a me ka ho'ohana 'ana i ka polyethylene ki'eki'e
Ma ka ʻoihana kemika, he mea koʻikoʻi loa ka HDPE, ʻo kona inoa piha ʻo High-Density Polyethylene (High-Density Polyethylene). He aha ka HDPE? E hāʻawi kēia ʻatikala iā ʻoe i kahi pane kikoʻī a me kahi loiloi hohonu o nā hiʻohiʻona o HDPE, kāna kaʻina hana a me kāna ākea o nā noi.
Nā Manaʻo Kumu a me ka Hoʻolālā Kemika o HDPE
He aha ka HDPE? Mai kahi manaʻo kemika, ʻo HDPE kahi polymer thermoplastic i hana ʻia e ka polymerization hoʻohui o nā monomers ethylene. Hōʻike ʻia kona ʻano molekala e nā kaulahao polyethylene lōʻihi me ka nui o ka molekala pili kiʻekiʻe a me nā kaulahao lālā liʻiliʻi ma waena o lākou, e hopena i kahi hoʻonohonoho molekala paʻa. Hāʻawi kēia hoʻonohonoho molekala paʻa i ka HDPE i ka mānoanoa kiʻekiʻe i ka ʻohana polyethylene, maʻamau ma waena o 0.940 g/cm³ a ​​me 0.970 g/cm³.
Na Mea Kino Kiekie o HDPE
Hōʻike nā mea HDPE i nā waiwai kino maikaʻi loa ma muli o kāna ʻano molekala kū hoʻokahi. Loaʻa iā ia ka ikaika kiʻekiʻe a me ka rigidity a hiki ke pale aku i nā koʻikoʻi mechanical kiʻekiʻe, kahi e hana maikaʻi ai i nā noi lawe ukana. He kūpaʻa kemika maikaʻi loa ka HDPE, kahi e pono ai no ka mālama ʻana i nā kinikona.
Loaʻa i ka HDPE ke kūpaʻa haʻahaʻa haʻahaʻa maikaʻi loa, hiki ke mālama i kona paʻakikī i nā kaiapuni e like me ka haʻahaʻa e like me -40 ° C me ka ʻole o ka palupalu. Loaʻa iā ia nā waiwai insulation uila maikaʻi, kahi i alakaʻi ai i kona hoʻohana ʻana i ka sheathing o nā uea a me nā kaula.
ʻO ke kaʻina hana HDPE a me nā ʻano hana
Ma hope o ka hoʻomaopopo ʻana i ke ʻano o ka HDPE mea, e nānā kākou i kāna kaʻina hana. Hoʻopuka pinepine ʻia ʻo HDPE e ke kaʻina polymerisation haʻahaʻa haʻahaʻa, ʻo ia hoʻi ma lalo o nā kūlana haʻahaʻa haʻahaʻa, me ka Ziegler-Natta catalyst a i ʻole Phillips catalyst ma ke ʻano he catalyst nui, ma o ka pae kinoea, solution. a i ʻole nā ​​ʻano hana polymerization slurry. Hoʻopuka kēia mau kaʻina hana i ka HDPE me ka crystallinity haʻahaʻa a me ka nui o ka crystallisation kiʻekiʻe, ka hopena i kahi mea polyethylene kiʻekiʻe.
Hiki i nā mea HDPE ke kaʻina hana maikaʻi a hiki ke hoʻoheheʻe ʻia e nā ʻano hana hana like ʻole, e like me ka hoʻoheheʻe ʻana, ka puhi ʻana a me ka hoʻoheheʻe extrusion. ʻO ka hopena, hiki ke hana ʻia ka HDPE i nā ʻano huahana he nui e like me nā paipu, nā kiʻiʻoniʻoni, nā ʻōmole a me nā ipu plastik.
Nui nā wahi noi no HDPE
Ma muli o ka nui o nā waiwai maikaʻi o ka mea HDPE, hoʻohana nui ʻia ia i nā ʻoihana like ʻole. I loko o ka ʻoihana hoʻopihapiha, hoʻohana maʻamau ʻia ʻo HDPE i ka hana ʻana i nā ʻano ʻano o nā ʻōmole plastik, nā ʻōmole, nā kiʻi ʻoniʻoni meaʻai, a me nā mea ʻē aʻe. I ka ʻoihana kūkulu, hoʻohana ʻia ʻo HDPE e hana i ka lako wai a me nā paipu hoʻoheheʻe a me nā paipu kinoea, a ʻo kona corrosion a me ka hopena hopena e hilinaʻi ʻia i nā wahi paʻakikī.
Ma ka ʻoihana mahiʻai, hoʻohana ʻia ʻo HDPE e hana i nā kiʻiʻoniʻoni mahiʻai, nā ʻupena malu a me nā huahana ʻē aʻe, kahi i hoʻopaʻa ʻia ai kona kūpaʻa UV a me ka lōʻihi e hōʻoia ai i ka pale ʻana a me ka hua. nā ʻano pahu a me nā pahu kūʻai kemika.
Ka hopena
ʻO ka HDPE kahi mea polymer thermoplastic me nā waiwai maikaʻi loa e like me ka ikaika kiʻekiʻe, ke kūpaʻa kemika, ke kūpaʻa haʻahaʻa haʻahaʻa a me ka hana maʻalahi. Loaʻa iā ia ka laulā o nā noi ma kemika, kūkulu, mahiʻai a me nā ʻano ʻē aʻe. Inā ʻoe e noʻonoʻo nei "he aha ka mea HDPE", manaʻolana ʻoe ma o kēia ʻatikala, loaʻa iā ʻoe kahi ʻike piha o nā ʻano a me nā noi o HDPE, ʻo HDPE ʻo ia kekahi o nā mea waiwai nui i ka ʻoihana hou.