ʻO kaolin he mineral non-metallic, ʻo ia ke ʻano o ka pālolo a me ka pālolo pōhaku i haku nui ʻia me nā minerala pālolo hui kaolinite.Ma muli o kona ʻano keʻokeʻo a palupalu, ʻike ʻia ʻo ia ʻo Baiyun lepo.Kapa ʻia ma hope o Gaoling Village ma Jingdezhen, Jiangxi Province.

ʻO kona kaolin maʻemaʻe he keʻokeʻo, palupalu, a palupalu i ke ʻano, me nā waiwai kino a me nā mea kemika maikaʻi e like me ka plasticity a me ke kūpaʻa ahi.ʻO ka nui o ka hui ʻana o ka mineral he kaolinite, halloysite, hydromica, illite, montmorillonite, a me nā minerale e like me ka quartz a me ka feldspar.He nui ka hoʻohana ʻana o Kaolin, i hoʻohana nui ʻia i ka hana pepa, nā seramika, a me nā mea refractory, a ukali ʻia e ka uhi ʻana, nā mea hoʻopihapiha hoʻopihapiha, nā aniani enamel, a me nā mea waiwai sima keʻokeʻo.Ma nā liʻiliʻi liʻiliʻi, hoʻohana ʻia i ka plastic, pena, pigments, wili huila, penikala, nā mea hoʻonaninani i kēlā me kēia lā, kopa, pesticides, pharmaceuticals, textiles, petroleum, chemical, building materials, national defense and other industrial sectors.

Kaʻina hana
Olino keokeo pelu

ʻO ke keʻokeʻo kekahi o nā palena nui no ka hana ʻenehana o kaolin, a he keʻokeʻo kaolin maʻemaʻe kiʻekiʻe.Hoʻokaʻawale ʻia ka keʻokeʻo o kaolin i ke keʻokeʻo maoli a me ke keʻokeʻo calcined.No nā mea waiwai ceramic, ʻoi aku ka nui o ka keʻokeʻo ma hope o ka calcination, a ʻoi aku ka kiʻekiʻe o ke keʻokeʻo calcined, ʻoi aku ka maikaʻi.ʻO ke kaʻina hana seramika e kuhikuhi ana i ka maloʻo ʻana ma 105 ℃ ka maʻamau helu no ka keʻokeʻo maoli, a ʻo ka calcining ma 1300 ℃ ka maʻamau no ka calcined whiteness.Hiki ke ana ʻia ke keʻokeʻo me ka mika keʻokeʻo.ʻO ka mika keʻokeʻo e ana i ka ʻōlinolino o 3800-7000Å He mea hana no ke ana ʻana i ka hoʻomālamalama ʻana o ka mālamalama ma kahi lōʻihi nalu o (ʻo ia hoʻi, 1 angstrom=0.1 nanometers).I loko o kahi mika keʻokeʻo, ua hoʻohālikelike ʻia ka hōʻike o ka hāpana hoʻāʻo me ka laʻana maʻamau (e like me BaSO4, MgO, etc.), e hopena i kahi waiwai keʻokeʻo (e like me ke keʻokeʻo o 90, e like me 90% o ka hoʻohālike o ka hāpana maʻamau).

ʻO ka mālamalama kahi waiwai kaʻina e like me ke keʻokeʻo, e like me 4570Å ʻO ke keʻokeʻo ma lalo o (angstrom) ka lōʻihi hawewe kukui irradiation.

ʻO ka waihoʻoluʻu o ka kaolin e pili nui ana i nā oxides metala a i ʻole nā ​​mea organik i loko.Loaʻa ka Fe2O3, ʻulaʻula a me ka melemele ʻeleʻele;Loaʻa iā Fe2+, ʻike ʻia ka uliuli māmā a me ka ʻōmaʻomaʻo māmā;Loaʻa iā MnO2, ʻike ʻia kona waihoʻoluʻu māmā;Inā loaʻa nā mea olaola, ʻike ʻia ia i ka melemele māmā, hina, uliuli, ʻeleʻele a me nā kala ʻē aʻe.Aia kēia mau mea haumia, e hōʻemi ana i ka keʻokeʻo maoli o kaolin.Ma waena o lākou, hiki i nā minerala hao a me ka titanium ke hoʻopili i ka keʻokeʻo calcined, e hoʻoulu ai i nā ʻāpana kala a i ʻole nā ​​​​ʻili hoʻoheheʻe ma ka porcelain.

Ka hāʻawi ʻana i ka nui o nā ʻāpana ʻōpala
ʻO ka puʻunaue ʻana i ka nui o nā ʻāpana like ʻole e pili ana i ka māhele o nā ʻāpana i loko o ka kaolin maoli i loko o kahi ākea mau o nā ʻāpana like ʻole (i hōʻike ʻia ma nā millimeters a i ʻole micrometer mesh), i hōʻike ʻia ma ka pākēneka maʻiʻo.ʻO nā hiʻohiʻona puʻupuʻu nui o ka kaolin he mea koʻikoʻi nui no ka koho a me ka hoʻohana ʻana i nā ores.He hopena koʻikoʻi ka nui o kona ʻāpana i kona plasticity, mud viscosity, ion exchange capacity, hoʻokumu i ka hana, hoʻomaloʻo i ka hana, a me ka hana puhi.Pono ʻo Kaolin ore i ka hana ʻenehana, a inā he maʻalahi ka hana ʻana i ka fineness i makemake ʻia ua lilo ia i hoʻokahi o nā kūlana no ka loiloi ʻana i ka maikaʻi o ka ʻai.Loaʻa i kēlā me kēia keʻena ʻoihana nā koi kikoʻī no ka nui a me ka maikaʻi o ka kaolin no nā kumu like ʻole.Inā makemake ʻo ʻAmelika Hui Pū ʻIa i kaolin i hoʻohana ʻia ma ke ʻano he uhi e emi iho ma mua o 2 μ ʻO ka maʻiʻo o ka m helu no 90-95%, a ʻo ka mea hoʻopiha pepa ma lalo o 2 μ M helu no 78-80%.

paʻa paʻa
ʻO ka Adhesion e pili ana i ka hiki o ke kaolin ke hui pū me nā mea ʻilika ʻole e hana i nā ʻōpala palaka a loaʻa kahi pae o ka ikaika maloʻo.ʻO ka hoʻoholo ʻana i ka hiki ke hoʻopaʻa ʻia e pili ana i ka hoʻohui ʻana i ke one quartz maʻamau (me ka haku mele ʻana o 0.25-0.15 ʻāpana ʻāpana nui e helu ana no ka 70% a me 0.15-0.09mm ʻāpana ʻāpana nui helu helu no 30%) i kaolin.Ke hoʻoholo nei i kona kiʻekiʻe ma muli o kona kiʻekiʻe kiʻekiʻe o ke one i ka wā e hiki ai ke mālama i kahi pālolo plastik a me kona ikaika flexible ma hope o ka maloʻo ʻana, ʻoi aku ka nui o ke one, ʻoi aku ka ikaika o ka hiki ke hoʻopaʻa i kēia kaolin.ʻO ka maʻamau, ʻo kaolin me ka plasticity ikaika pū kekahi i hiki ke hoʻopaʻa paʻa.

Peʻa pelu
ʻO ka viscosity ke ʻano o ka wai e keʻakeʻa ana i kona kahe pili ʻana ma muli o ke kuʻekuʻe kūloko.Hōʻike ʻia kona nui (e hana ana ma 1 ʻāpana o ka friction kūloko) e ka viscosity, ma nā ʻāpana o Pa · s.ʻIke ʻia ka hoʻoholo ʻana o ka viscosity me ka hoʻohana ʻana i ka viscometer rotational, kahi e ana i ka wikiwiki o ka huli ʻana i ka lepo kaolin i loaʻa he 70% paʻa paʻa.I ke kaʻina hana, he mea nui ka viscosity.ʻAʻole ia he mea koʻikoʻi koʻikoʻi i ka ʻoihana seramika, akā he hopena nui hoʻi i ka ʻoihana hana pepa.Wahi a ka ʻikepili, i ka wā e hoʻohana ai i kaolin e like me ka uhi ʻana i nā ʻāina ʻē, pono ka viscosity ma kahi o 0.5Pa · s no ka hoʻopili haʻahaʻa haʻahaʻa a emi iho ma mua o 1.5Pa · s no ka uhi ʻana i ka wikiwiki.

ʻO ka Thixotropy e pili ana i nā hiʻohiʻona o ka slurry i mānoanoa i ka gel a ʻaʻole e kahe hou e lilo i wai ma hope o ke koʻikoʻi, a laila mānoanoa mālie i ke kūlana kumu ma hope o ka paʻa.Hoʻohana ʻia ka helu mānoanoa e hōʻike i kona nui, a ua ana ʻia me ka hoʻohana ʻana i kahi viscometer outflow a me kahi viscometer capillary.

ʻO ka viscosity a me ka thixotropy e pili ana i ka haku mele, ka nui o ka ʻāpana, a me ke ʻano cation i loko o ka lepo.ʻO ka mea maʻamau, ʻo ka poʻe me ka nui o ka montmorillonite, nā ʻāpana maikaʻi, a me ka sodium ma ke ʻano he cation hiki ke hoʻololi ʻia he kiʻekiʻe viscosity a me ka mānoanoa coefficient.No laila, ma ke kaʻina hana, hoʻohana mau ʻia nā ʻano e like me ka hoʻohui ʻana i ka pālolo plastik nui a me ka hoʻomaikaʻi ʻana i ka fineness e hoʻomaikaʻi i kona viscosity a me thixotropy, aʻo nā ʻano e like me ka hoʻonui ʻana i ka electrolyte diluted a me ka ʻike wai e hoʻemi ʻia.