ʻO ka mea mua, ke kumu o ka hui ʻana
Ma ka hoʻoulu ʻana i nā lau a me ke kiʻi hoʻohuli e hoʻololi kekahi i kekahi, hana ʻia ka hoʻokuʻu ʻana o ka mīkini a mālama ʻia, a hoʻonui ʻia ka hoʻololi ʻana ma waena o ka wai a me nā pae paʻa. Hoʻokaʻawale ʻia ka hoʻoulu ʻana i ka wai paʻa i nā ʻāpana penei: (1) ka hoʻokuʻu ʻana i nā ʻāpana paʻa; (2) hoʻokuʻu hou ʻia o nā ʻāpana i hoʻopaʻa ʻia; (3) ka hoʻokomo ʻana o nā mea i hoʻokuʻu ʻia i loko o ka wai; (4) hoʻohana ma waena o nā ʻāpana a ma waena o nā ʻāpana a me nā hoe. (5) ka hoʻololi nui ma waena o ka wai a me ka paʻa.
ʻO ka lua, ka hopena hoʻoulu
Hoʻohui maoli ke kaʻina hana hoʻohui i nā ʻāpana like ʻole i loko o ka slurry i kahi ratio maʻamau e hoʻomākaukau i kahi slurry e hoʻomaʻamaʻa i ka uhi ʻana a me ka hōʻoia ʻana i ke kūlike o nā ʻāpana pole. ʻElima mau kaʻina hana, ʻo ia hoʻi: pretreatment, blending, wetting, dispersion and flocculation of the raw materials.
ʻO ke kolu, nā ʻāpana slurry
1, viscosity:
ʻO ke kū'ēʻana o kahi wai i kahi kahe i weheweheʻia e like me ka nui o ke koʻikoʻi shear i koiʻia no ka 25 px 2 plane i ka wā e kahe ana ka wai ma kahi o 25 px / s, i kapaʻia ka viscosity kinematic, ma Pa.s.
ʻO ka viscosity kahi waiwai o nā wai. Ke kahe ka wai i loko o ka pipeline, aia ʻekolu mau mokuʻāina o ke kahe laminar, kahe hoʻololi, a me ke kahe ʻino. Aia kēia mau moku kahe ʻekolu i loko o nā mea hoʻouluulu, a ʻo kekahi o nā ʻāpana nui e hoʻoholo ai i kēia mau mokuʻāina ʻo ia ka viscosity o ka wai.
I ka wā o ka hoʻouluʻana, ua manaʻoʻia he emi ka viscosity ma mua o 5 Pa.s he wai viscosity haʻahaʻa, e like me: ka wai, kaʻaila castor, ke kō, ka jam, ka meli, ka aila lubricating, ka emulsion viscosity haʻahaʻa, a pēlā aku; ʻO 5-50 Pas he wai viscosity waena No ka laʻana: inika, toothpaste, etc.; ʻO 50-500 Pas nā wai viscosity kiʻekiʻe, e like me ka nau ʻana, plastisol, wahie paʻa, a pēlā aku; ʻoi aku ma mua o 500 Pas he mau wai viscosity kiʻekiʻe loa e like me: hui pū ʻana, hoʻoheheʻe plastic, Silicon organik a pēlā aku.
2, nui ʻāpana D50:
ʻO ka nui o ka nui o ka nui o ka 50% ma ka nui o nā mea i loko o ka slurry
3, maʻiʻo paʻa:
ʻO ka pākēneka o ka mea paʻa i ka slurry, ʻo ka ratio theoretical o ka maʻiʻo paʻa ka liʻiliʻi ma mua o ka maʻiʻo paʻa o ka hoʻouna.
ʻO ka hā, ke ana o nā hopena huikau
He ala no ka ʻike ʻana i ka like ʻole o ka hui ʻana a me ka hui ʻana o kahi ʻōnaehana hoʻokuʻu wai paʻa:
1, ana pololei
1) Ke ala viscosity: ka laʻana mai nā kūlana like ʻole o ka ʻōnaehana, e ana i ka viscosity o ka slurry me kahi viscometer; ʻo ka liʻiliʻi o ka haʻalele ʻana, ʻoi aku ka lōkahi o ka hui ʻana;
2) ʻAno ʻāpana:
A, ka laʻana mai nā kūlana like ʻole o ka ʻōnaehana, me ka hoʻohana ʻana i kahi ʻōpala nui e nānā i ka nui o ka slurry; ʻoi aku ka kokoke o ka nui o ka ʻāpana i ka nui o ka pauda maka, ʻoi aku ka like o ka hui ʻana;
B, ka laʻana mai nā kūlana like ʻole o ka ʻōnaehana, me ka hoʻohana ʻana i ka mea hoʻāʻo nui o ka ʻāpana ʻāpana laser e nānā i ka nui o ka slurry; ʻoi aku ka maʻamau o ka puʻunaue ʻana i ka nui o ka nui, ʻoi aku ka liʻiliʻi o nā ʻāpana nui, ʻoi aku ka like o ka hui ʻana;
3) Ke ʻano gravity kikoʻī: ka laʻana mai nā kūlana like ʻole o ka ʻōnaehana, ke ana ʻana i ka nui o ka slurry, ka liʻiliʻi o ka deviation, ʻoi aku ka like o ka hui ʻana.
2. Ana pololei ole
1) ʻO ke ʻano maʻiʻo paʻa (macroscopic): ʻO ka laʻana mai nā kūlana like ʻole o ka ʻōnaehana, ma hope o ka mahana kūpono a me ka manawa kuke, e ana i ke kaumaha o ka ʻāpana paʻa, ʻoi aku ka liʻiliʻi o ka deviation, ʻoi aku ka like o ka hui ʻana;
2) SEM/EPMA (microscopic): laʻana mai nā kūlana like ʻole o ka ʻōnaehana, pili i ka substrate, maloʻo, a nānā i nā ʻāpana a i ʻole nā mea i loko o ke kiʻiʻoniʻoni ma hope o ka hoʻomaloʻo ʻana i ka slurry e SEM (electron microscope) / EPMA (electron probe) Distribution ; (ʻo nā mea paʻa pūnaewele ka mea maʻamau)
ʻElima, kaʻina hoʻoulu anode
ʻeleʻele kalapona kalapona: Hoʻohana ʻia ma ke ʻano he mea hoʻokele. Hana: Hoʻohui i nā ʻāpana mea ikaika nui e hana maikaʻi i ka conductivity.
Copolymer latex — SBR (styrene butadiene rubber): hoʻohana ʻia ma ke ʻano he mea hoʻopaʻa. Ka inoa kemika: Styrene-Butadiene copolymer latex (polystyrene butadiene latex), ka wai-soluble latex, paʻa maʻiʻo 48~50%, PH 4~7, ka helu hau -5~0 °C, ka paila e pili ana i 100 °C, ka mahana mālama 5 ~ 35 ° C. SBR mea he anionic polymer dispersion me ka maikai mechanical paʻa a me ka operability, a he kiʻekiʻe hoʻopaʻa ikaika.
Sodium carboxymethyl cellulose (CMC) – (carboxymethyl cellulose sodium): hoʻohana ʻia ma ke ʻano he mānoanoa a me ka stabilizer. ʻO ka hiʻohiʻona he keʻokeʻo a melemele floc fiber pauda a i ʻole ka pauka keʻokeʻo, ʻaʻala ʻole, ʻono ʻole, ʻaʻohe mea ʻawaʻawa; hiki ke hoʻoheheʻe ʻia i loko o ka wai anuanu a i ʻole ka wai wela, e hana ana i gel, ʻaʻole i hoʻoheheʻe ʻia ka hopena i ka ethanol, ether, He mea hoʻoheheʻe kūlohelohe e like me ka isopropyl alcohol a i ʻole acetone i hoʻoheheʻe ʻia i loko o kahi hopena wai o 60% o ka ethanol a i ʻole acetone. He hygroscopic, paʻa i ka māmā a me ka wela, emi ka viscosity me ka piʻi ʻana o ka mahana, paʻa ka hopena i ka pH 2 a i ka 10, ʻoi aku ka PH ma mua o 2, ua hoʻoheheʻe ʻia nā mea paʻa, a ʻoi aku ka kiʻekiʻe o ka pH ma mua o 10. ʻO ka mahana hoʻololi kala he 227 °. C, he 252 ° C ka mahana o ka carbonization, a he 71 nm/n ka ili o ka 2% aqueous solution.
ʻO ke kaʻina hana hoʻoulu anode a me ka uhi ʻana penei:
ʻO ke ono, ka hoʻoulu ʻana i ka cathode
ʻeleʻele kalapona kalapona: Hoʻohana ʻia ma ke ʻano he mea hoʻokele. Hana: Hoʻohui i nā ʻāpana mea ikaika nui e hana maikaʻi i ka conductivity.
NMP (N-methylpyrrolidone): hoʻohana ʻia ma ke ʻano he mea hoʻonāwaliwali. Ka inoa kemika: N-Methyl-2-polyrrolidone, molecular formula: C5H9NO. ʻO ka N-methylpyrrolidone he wai ʻala iki ʻo ammonia i hiki ke hoʻopili ʻia me ka wai i kēlā me kēia ʻāpana a aneane hui pū ʻia me nā solvents a pau (ethanol, acetaldehyde, ketone, aromatic hydrocarbon, etc.). ʻO ka paila paila o 204 ° C, kahi flash o 95 ° C. ʻO NMP he polar aprotic solvent me ka haʻahaʻa haʻahaʻa, kahi paila kiʻekiʻe, solubility maikaʻi loa, koho a paʻa. Hoʻohana nui ʻia i ka ʻohi ʻana i nā mea ʻala; hoʻomaʻemaʻe i ka acetylene, olefins, diolefins. Hoʻohana ʻia ka solvent i hoʻohana ʻia no ka polymer a me ka medium no polymerization i kā mākou hui no NMP-002-02, me ka maʻemaʻe o> 99.8%, kahi umekaumaha kikoʻī o 1.025 ~ 1.040, a me kahi ʻano wai o <0.005% (500ppm). ).
PVDF (polyvinylidene fluoride): hoʻohana ʻia ma ke ʻano he mānoanoa a me ka mea hoʻopili. Keʻokeʻo pauda crystalline polymer me ka pili pili o 1.75 a 1.78. Loaʻa iā ia ka pale UV maikaʻi loa a me ka pale ʻana i ka wā, a ʻaʻole paʻakikī kāna kiʻiʻoniʻoni ma hope o ka waiho ʻana i waho no hoʻokahi a ʻelua paha mau makahiki. ʻO nā waiwai dielectric o ka polyvinylidene fluoride he kikoʻī, ʻo ka dielectric mau ke kiʻekiʻe e like me 6-8 (MHz ~ 60Hz), a he nui hoʻi ka tangent dielectric loss, ma kahi o 0.02 ~ 0.2, a ʻoi aku ka haʻahaʻa o ke kūʻē leo, ʻo ia ka 2 ×1014ΩNaN. ʻO kona mahana hoʻohana lōʻihi -40 ° C ~ +150 ° C, ma kēia pae wela, he mau mea mechanical maikaʻi ka polymer. Loaʻa iā ia ka mahana hoʻololi aniani o -39 ° C, kahi mahana embrittlement o -62 ° C a i ʻole ka liʻiliʻi, kahi helu hoʻoheheʻe aniani ma kahi o 170 ° C, a me kahi mahana decomposition wela o 316 ° C a ʻoi aku paha.
Ka hoʻoulu ʻana o ka Cathode a me ke kaʻina hana uhi:
7. Nā hiʻohiʻona viscosity o ka slurry
1. Curve o ka slurry viscosity me ka manawa hoʻoulu
Ke hoʻolōʻihi ʻia ka manawa hoʻoulu, ʻo ka viscosity o ka slurry ke ʻano he waiwai paʻa me ka loli ʻole (hiki ke ʻōlelo ʻia ua hoʻopuehu ʻia ka slurry).
2. Curve o ka slurry viscosity me ka mahana
ʻO ke kiʻekiʻe o ka mahana, ʻoi aku ka haʻahaʻa o ka viscosity o ka slurry, a ʻo ka viscosity e pili ana i kahi waiwai paʻa ke hiki i kahi mahana.
3. ʻO ka pihi o ka maʻiʻo paʻa o ka slurry pahu hoʻoili me ka manawa
Ma hope o ka hoʻoulu ʻia ʻana o ka slurry, hoʻoheheʻe ʻia i ka pahu hoʻoili no ka uhi ʻana o Coater. Hoʻoulu ʻia ka pahu hoʻoili e hoʻololi: 25Hz (740RPM), kipi: 35Hz (35RPM) e hōʻoia i ka paʻa o nā ʻāpana o ka slurry a ʻaʻole e loli, me ka pulp. Mea wela, viscosity a me ka maʻiʻo paʻa e hōʻoia i ka like ʻole o ka uhi slurry.
4, ka viscosity o ka slurry me ka manawa curve
Ka manawa hoʻouna: Oct-28-2019