ʻO ka lole olonā kalapona
Hoʻolauna
ʻO ke kāpona kalapona a me ka Graphite he mea hoʻopaʻa mahana kiʻekiʻe palupalu a maʻalahi hoʻi i hoʻohana pinepine ʻia i nā wahi vacuum a me nā wahi lewa pale a hiki i 5432℉ (3000℃). Loaʻa ka ʻili maʻemaʻe kiʻekiʻe i mālama ʻia i ka wela a hiki i 4712℉ (2600℃) a me ka Halogen Purification no nā kauoha hana maʻamau. Eia kekahi, hiki ke hoʻohana ʻia ka mea i nā mahana oxidizing a hiki i 752℉ (400℃).
ʻO ke ʻano o ka fiber kalapona i hoʻāla ʻia he mea i manaʻo nui ʻia, lole, filaments, me ka fiber mea kanu (viscose fiber) a i ʻole nā polymer organik ʻē aʻe e like me nā mea maka, i hana mua ʻia a laila hoʻāla ʻia ka carbonized. ʻO ka mea nui ka carbon. Aia nā ʻātoma kalapona ma ke ʻano o ka hoʻopaʻa ʻana o nā microcrystals e like me ka graphite i loko o ka fiber kalapona i hoʻāla ʻia. ʻAʻole maikaʻi ke kauoha ʻana o ka hakahaka ʻekolu-dimensional.
ʻO kekahi ʻano ʻē aʻe, ʻo ia ka nui o ka ʻili, a ua wehe ʻia ka nui o nā micropores ma ka ʻili o ka fiber. I ke kaʻina hana o ka adsorption a me ka desorption, he pōkole ke ala adsorption molecular, a hiki i ka adsorbent ke komo pololei i nā micropores. Hāʻawi kēia i nā kūlana no ka adsorption wikiwiki o ka fiber kalapona i hoʻāla ʻia a me ka hoʻohana pono ʻana i nā micropores.
He nui ka ʻili kikoʻī o ke kalapona i hoʻāla ʻia me ka fiber, ua hoʻomohala maikaʻi ʻia nā pores, kiʻekiʻe ka hana adsorption, wikiwiki ka wikiwiki desorption, hiki ke hoʻohana pinepine ʻia a pēlā aku.
He aha ka ʻokoʻa ma waena o nā huluhulu Pan a me Rayon?
ʻO Polyacrylonitrile, i ʻike ʻia hoʻi ʻo PAN, ua hana ʻia me nā olonā papa anawaena nui aʻe e hopena ana i ka ʻili haʻahaʻa a me ke kūpaʻa oxidation maikaʻi aʻe. ʻOi aku ka paʻakikī o ka mea palupalu a emi iki ka palupalu i ka pā i ka hoʻohālikelike ʻia me Rayon. ʻOi aku ka haʻahaʻa o ka conductivity thermal o Rayon ma mua o PAN i nā mahana ʻoi aku ma mua o 3272 ℉ (1800 ℃).
No nā noi mālama wela, paipai nui kā mākou keʻena i ka PAN carbon felt ma muli o ka maʻalahi o ka lawelawe ʻana i nā mea a me ke kumukūʻai i hoʻemi ʻia. Inā ʻoe e hana ana ma nā mahana ʻoi aku ma mua o 3272 ℉ (1800 ℃), e ʻoluʻolu e hoʻohana iā Rayon.
NĀ PŌMAIKAʻI
Maʻalahi e ʻoki a hoʻouka.
Haʻahaʻa ka nuipaʻa a me ka nuipa wela.
Ke kūpaʻa wela kiʻekiʻe.
Haʻahaʻa ka nui o ka lehu a me ka sulfur.
ʻAʻohe hoʻopuka ʻana i ke kinoea.
Noi
(1) hoʻōla hou ʻana o ka mea hoʻoheheʻe: benzene, ketone, ester, a me ka ʻaila hiki ke hoʻōla hou ʻia me ka adsorption.
(2) ka hoʻomaʻemaʻe ʻana i ka ea: hiki ke omo a kānana i ka ea i loko o ke ʻala, ke ʻala kino, ka uahi, ke kinoea, O3, SO2, NO.
(3) hoʻomaʻemaʻe wai: hiki ke wehe i nā ion metala kaumaha i loko o ka wai, nā mea carcinogenic, nā ʻala, ka ʻōpala, ka bacteria a me ka decolorization; Hiki ke hoʻohana ʻia no ka mālama ʻana i ka wai piula wai, ka wai o ka ʻoihana meaʻai a me ka wai maʻemaʻe ʻoihana.
(4) ʻenekinia kaiapuni: ka mālama ʻana i ke kinoea ʻōpala a me ka wai ʻino;
(5) nā mea hanu, nā lole pale, nā kānana cigarette, a pēlā aku;
6. Hiki ke hoʻohana ʻia ka hoʻokaʻawale ʻana a i ʻole ka hoʻōla ʻana o nā mea radioactive i ka metala makamae, a hiki ke hoʻohana ʻia e like me ka mea lawe catalyst, me ka pae paʻa o ke kinoea chromatography;
Lāʻau lapaʻau ma ka pūʻolo, antidote koʻikoʻi, puʻupaʻa hana, a pēlā aku;
E. Nā noi uila a me ka ikehu, e like me nā capacitors mana kiʻekiʻe, nā pila mālama, a pēlā aku;
Nā mea mahana kiʻekiʻe a me nā mea hoʻomehana.
Hiki ke hoʻokaʻawale ʻia ke kalapona hoʻāla ʻia i loko o ka viscose a me ka polyacrylonitrile i ʻelua mau moʻo e like me ke ʻano o ka mea:
● lole huluhulu kalapona i hoʻāla ʻia ● lole huluhulu kalapona i hoʻāla ʻia
● fiber kalapona i hoʻāla ʻia ● pepa fiber kalapona i hoʻāla ʻia
e pili ana
ʻOihana
