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1. Ke kuleana o ka titanium dioxide i ka pale
Hoʻokomo ʻia nā kapa komo i ʻehā mau ʻāpana: nā mea hana kiʻi ʻoniʻoni, nā pigment, nā mea hoʻoheheʻe a me nā mea hoʻohui. Loaʻa i nā pigment i ka uhi kahi mana huna. ʻAʻole hiki iā ia ke uhi i ke kala kumu o ka mea i uhi ʻia, akā hāʻawi pū i ka uhi i kahi kala ʻulaʻula. ʻIke i ka hopena hoʻonaninani o ka uila a me ka hoʻonani. I ka manawa like, hui pū ʻia ka pigment me ka agena hoʻōla a me ka substrate, a hui pū ʻia, hiki ke hoʻonui i ka ikaika mechanical a me ka hoʻopili ʻana o ke kiʻi uhi, pale i ka haki ʻana a i ʻole hāʻule ʻana, a hiki ke hoʻonui i ka mānoanoa o ke kiʻi uhi, pale ke komo o nā kukuna ultraviolet a i ʻole ka māū, a hoʻomaikaʻi i ka uhi. ʻO ka anti-ʻelemakule a me nā kūpaʻa paʻa o ke kiʻi ʻoniʻoni ke ola lawelawe o ke kiʻi ʻoniʻoni a me ka mea pale.
I ka pigment, ʻo ka nui o nā pigment keʻokeʻo he nui loa, a me nā koi hana o ka uhi no ka pigment keʻokeʻo: whitMaʻemaʻe maikaʻi; Gr ʻO ka wili maikaʻi a me ka hiki ʻole; Resistance Kūlana ʻino maikaʻi; Stability ʻO ke kūpaʻa kemika maikaʻi; ʻO ka nui o ka huna liʻiliʻi, ka hūnā ʻana i ka mana a me ka nalo ʻana i ka mana kala kiʻekiʻe, opacity maikaʻi a me nā ʻōlinolino.
ʻO ka Titanium dioxide kahi ʻano o ka pigment keʻokeʻo e hoʻohana ākea i nā uhi. ʻO kāna huahana i hōʻike ʻia ma mua o 70% o nā pigment inorganic, a ʻo ka ʻai ʻana he 95.5% o ka nui o ka hoʻohana ʻana i nā pigment keʻokeʻo. I kēia manawa, ma kahi o 60% o ka honua titanium dioxide i hoʻohana ʻia e hana i nā uhi ʻokoʻa, keu hoʻi ka dioxide rutile titanium, ʻo ka hapa nui o ia mea e hoʻopau ʻia e ka ʻoihana uhi. ʻO ka pena i hana ʻia me ka titanium dioxide he mau kala ʻōlinolino, mana hūnā kiʻekiʻe, mana tinting ikaika, mea haʻahaʻa, a me nā ʻano like ʻole. Pale ia i ke kūpaʻa o ka waena, a hiki ke hoʻonui i ka ikaika mechanical a me ka hoʻopili ʻana o ke kiʻi pena, pale i nā māwae, a pale i nā kukuna ultraviolet. Hoʻokomo ia me ka wai a hoʻolōʻihi i ke ola o ke kiʻi pena. ʻO ke kala kūlike o ka ʻaneʻane o kēlā me kēia kumu i ka pena pena kala ʻia ʻaʻole hiki ke kaʻawale mai ka dioxide titanium.
ʻO nā ʻano ʻāpana like ʻole no nā kumu like ʻole he mau koi ʻokoʻa no ka dioxide titanium. ʻO kahi laʻana, koi nā pale lepo i ka hoʻohana ʻana o rutile titanium dioxide me ka maikaʻi dispersibility. Anatase titanium dioxide he haʻahaʻa decoloring ka mana a me ka ikaika photochemical hana. Ke hoʻohana ʻia i nā uhi pauka, hiki ke kiʻi melemele i ka melemele. ʻO ka rutile titanium dioxide i hana ʻia e ka hana waikawa sulfuric i loaʻa nā maikaʻi o ke kumukūʻai kaulike, hoʻopuehu maikaʻi, mana hūnā maikaʻi a me ke kala e hoʻoliʻiliʻi ana i ka mana, a he kūpono loa ia no nā pale pauka o loko. Ma waho aʻe o ka maikaʻi o ka dispersibility, hūnā ka mana a me ke kala e hōʻemi ana i ka mana, titanium dioxide no ka pale o ka pauka waho e pono ai hoʻi i ka makaʻu maikaʻi. No laila, ʻo ka pauma titanium no ka uhiʻana o ka pauka waho kahi rutile titanium dioxide i hana ʻia e chlorination.
2. Ka nānā ʻana i ka hopena o nā fluctuations nui o ka titanium dioxide ma nā pale
1 keʻokeʻo
Hoʻohana ʻia ka Titanium dioxide i pigment keʻokeʻo no nā pale. ʻO kona keʻokeʻo he mea nui a ʻo ia kekahi o nā hōʻailona hōʻailona maikaʻi e koi ʻia e ka pale. ʻO ke keʻokeʻo maikaʻi ʻole o ka titanium dioxide e hoʻopili pololei i ka hiʻohiʻona o ke kiʻi uhi. ʻO ke kumu nui e hoʻopili i ke keʻokeʻo o ka titanium dioxide ka ʻano a me ka ʻike o nā impurities weliweli, no ka mea, maʻalahi ka titanium dioxide i nā impurities, keu hoʻi ka dianiumide rutile rutile.
No laila, ʻo ka liʻiliʻi o nā impurities e loaʻa ka hopena koʻikoʻi i ka keʻokeʻo o ka titanium dioxide. ʻO ke keʻokeʻo o ka titanium dioxide i hana ʻia e ka hana chloride i ʻoi aku ka maikaʻi ma mua o ka hana a ka hana sulfuric acid. ʻO kēia no ka mea ʻo ka raw titanium tetrachloride i hoʻohana ʻia i ka hana ʻana o ka titanium dioxide e ke kaʻina hana chloride i hoʻomaʻemaʻe a hoʻomaʻemaʻe ʻia, a ʻoi aku ka liʻiliʻi o kāna ʻike haumia ponoʻī, ʻoiai ke hoʻohana nei ke kaʻina hana sulfuric acid i nā ʻike maka haumia i kiʻekiʻe, kahi hiki wale nō e hoʻoneʻe ʻia e ka holoi ʻana a me ka hoʻomaʻemaʻe ʻana i nā hana.
2 mana hūnā
ʻO ka mana hūnā ka ʻāpana o ka mea i uhi ʻia i kēlā me kēia kenimika. Ke uhi piha ʻia, pena ʻia ka wahi like. ʻO ka nui o ka mana hūnā o ka titanium dioxide i hoʻohana ʻia, ʻo ka lahilahi o ke kiʻi uhi, a ʻo ka liʻiliʻi o ka pena e pono ai, ʻo ka liʻiliʻi o ka titanium dioxide e pono ai, inā e emi ka mana huna o ka titanium dioxide, i mea e hoʻokō i ka uhi uhi like, ka nui o ka titanium dioxide i koi ʻia e hoʻonui, e hoʻonui ʻia ke kumukūʻai hana, a ʻo ka hoʻonui ʻana i ka nui o ka titanium dioxide e hoʻoulu ai i ka titanium dioxide i ka uhi Ua paʻakikī e hoʻopuehu like, a loaʻa ka hōʻuluʻulu, kahi e e hoʻopili i ka hopena uhi o ka uhi.
3 kū ʻino
Koi aku ka pale i ke aniau kiʻekiʻe o ka titanium dioxide, keu hoʻi no nā pale o waho o ka honua, kahi e koi ai i ke aniau kiʻekiʻe a i ʻole ke kūlia aniani kiʻekiʻe. Ke hoʻohana nei i ka titanium dioxide me ke kūmau o ke anilā haʻahaʻa, e loaʻa nā pilikia o ka pīni uhi e like me ka mae ʻana, ka hoʻoliʻiliʻi, ke kalai ʻana, ka ʻāwahi ʻana, a me ka ihi. ʻOi aku ka ʻoi loa o ke ʻano aniani o ka diutide titanium rutile ma mua o ka anatase titanium dioxide, a haʻahaʻa kāna hana photochemical. No laila, ʻoi aku ke kiʻekiʻe o ke kūpale ma mua o ka anatase dioxide anatase. No laila, ʻo ka titanium dioxide i hoʻohana ʻia no nā pale ka mea nui rutile titanium dioxide. ʻO ke ala nui e hoʻomaikaʻi ai i ke kūpale ʻana o ka wā o ka titanium dioxide e hana i ka hoʻomaʻemaʻe honua anorganic, ʻo ia hoʻi, e hoʻopili i hoʻokahi a ʻoi paha mau papa o nā oxide inorganic a i ʻole nā ​​hydrated oxides ma ka ʻili o nā titanium dioxide particles.
4 hoʻopuehu
ʻO ka Titanium dioxide he mau ʻāpana ultra-fine me ka ʻāpana kikoʻī kikoʻī nui a me ka ikehu kiʻekiʻe. Maʻalahi e hōʻuluʻulu i waena o nā hunaahi a paʻakikī e hoʻopuehu i ka pale. ʻO ka luhi maikaʻi ʻole o ka titanium dioxide e hoʻopili pololei i kāna mau pono opua e like me ka hoʻoliʻiliʻi ʻana o ke kala, ka hūnā ʻana i ka mana a me ka gloss o ka uhi, a pili pū kekahi i ka paʻa o ka mālama ʻana, ka hoʻoheheʻe ʻana, ka pae ʻana, ka uhi paʻa ʻana, a me ke kūpaʻa o ka pale o ka uhi. ʻO nā pono noi e like me ka conductivity uila a me ka conductivity e hoʻopili i ka uku hana o ka uhi ʻana, no ka mea kiʻekiʻe ka ʻai ʻana o ka wili a me ka hoʻohele ʻana, e helu ana no ka hapa nui o ka hoʻohana ʻana i ka ikehu o ke kaʻina hana uhi uhi, a nui ka nalo o nā pono. .
Ke piʻi nei ka noi no ka titanium dioxide i kēia makahiki, keu hoʻi no ka dioxide titanium i hoʻohana ʻia i ka ʻoihana mokulele lithium-ion, e hilinaʻi mau nei i nā lawe mai. E like me ke kahe o ka titanium dioxide, hoʻopili ʻia ka uhi ʻana e ka ʻino o ke kaiapuni, a ua pani ʻia ka nui o nā ʻoihana liʻiliʻi a liʻiliʻi. I ka wā e hiki mai ana, e hoʻemi pū ka nui o ka titanium dioxide ma ka mākeke uhi.


Ka manawa Post: ʻAuk-22-2020
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