Kutanga, nheyo yekusanganiswa
Nekubvongodza mablades uye furemu inotenderera kuti itenderere mumwe nemumwe, iyo mechanical suspension inogadzirwa uye inochengetedzwa, uye kufambiswa kwemazhinji pakati pemvura uye yakasimba zvikamu zvinowedzerwa. Solid-liquid agitation inowanzopatsanurwa kuita zvikamu zvinotevera: (1) kuturika kwezvimedu zvakasimba; (2) kumiswazve kwezvikamu zvakagadzika; (3) kupinza kwezvikamu zvakaturikwa mumvura; (4) shandisa pakati pezvimedu uye pakati pezvimedu uye paddles Simba rinokonzeresa iyo particle agglomerates kuparadzira kana kutonga saizi yechikamu; (5) kufambiswa kwehuwandu pakati pemvura uye yakasimba.
Chechipiri, mugumisiro unonyandura
Iyo yekubatanidza maitiro inosanganisa izvo zvakasiyana-siyana mu slurry pamwe chete muchiyero chechiyero kugadzirira slurry kufambisa yunifomu kupfekedza uye kuve nechokwadi chekuenderana kwezvimedu zvepango. Izvo zvinongedzo zvinowanzo sanganisira maitiro mashanu, anoti: pretreatment, kusanganisa, kunyorova, kupararira uye kuyerera kwezvakagadzirwa.
Chechitatu, slurry parameters
1, viscosity:
Kurwisana kwemvura kune kuyerera kunotsanangurwa sehuwandu hweshear stress inodiwa pa 25 px 2 ndege kana mvura ichiyerera pamwero we 25 px / s, inonzi kinematic viscosity, muPa.s.
Viscosity inzvimbo yemvura. Kana mvura ichiyerera mupombi, pane matunhu matatu ekuyerera kwelaminar, kuyerera kwekuchinja, uye kuyerera kwemhirizhonga. Aya matatu ekuyerera nyika aripowo mumudziyo unomutsa, uye imwe yematanho makuru anotaridza idzi nyika iko viscosity yemvura.
Munguva yekukurudzira, zvinowanzoonekwa kuti viscosity ishoma pane 5 Pa.s ishoma viscosity fluid, yakadai se: mvura, castor mafuta, shuga, jamu, uchi, mafuta ekuzora, low viscosity emulsion, nezvimwewo; 5-50 Pas is a medium viscosity fluid Semuyenzaniso: inki, mushonga wemazino, zvichingodaro; 50-500 Pas zvinwiwa zveviscosity zvakakwirira, sekucheka chingamu, plastisol, mafuta akasimba, nezvimwewo; anopfuura mazana mashanu Pas akawedzera akakwira viscosity zvinwiwa zvakaita se: musanganiswa werabha, mapurasitiki anonyungudika, organic Silicon uye zvichingodaro.
2, saizi D50:
Saizi yehukuru hweiyo particle size ye50% nehuwandu hwezvimedu mune slurry
3, yakasimba zvemukati:
Iyo percentage yechinhu chakasimba mune slurry, iyo theoretical reshi yezvakasimba zvemukati ishoma pane yakasimba yemukati yekutumira.
Chechina, chiyero chemigumisiro yakasanganiswa
Nzira yekuona kufanana kwekusanganisa uye kusanganiswa kweiyo solid-liquid suspension system:
1, kuyerwa kwakananga
1) Viscosity nzira: sampling kubva munzvimbo dzakasiyana dzehurongwa, kuyera viscosity ye slurry ne viscometer; kuderera kuduku, kunowedzera yunifomu kusanganiswa;
2) Particle nzira:
A, sampling kubva munzvimbo dzakasiyana dzehurongwa, uchishandisa particle size scraper kuti ione chidimbu chekukura kweslurry; iyo iri pedyo nehukuru hwehuputi hunoenderana nehukuru hwehupfu hwehupfu, iyo inowedzera yunifomu kusanganiswa;
B, sampling kubva munzvimbo dzakasiyana dzehurongwa, uchishandisa laser diffraction particle size tester kuona saizi ye slurry; iyo yakanyanya kujairika kugovera saizi yezvikamu, zviduku zviduku zvakakura, kunyanya kufanana kwekusanganiswa;
3) Yakananga nzira yegiravhiti: sampling kubva munzvimbo dzakasiyana dzehurongwa, kuyera density ye slurry, iyo idiki yekutsauka, iyo yakawanda yunifomu kusanganisa.
2. Chiyero chisina kunanga
1) Solid content method (macroscopic): Sampling kubva munzvimbo dzakasiyana dzegadziriro, mushure mekushisa kwakakodzera uye nguva yekubika, kuyera uremu hwechikamu chakasimba, kuduku kutsauka, kuwedzera yunifomu kusanganiswa;
2) SEM/EPMA (microscopic): sampuli kubva munzvimbo dzakasiyana dzehurongwa, shandisa kune substrate, yakaoma, uye tarisa zvimedu kana zvinhu zviri mufirimu mushure mekuomesa slurry neSEM (electron microscope) / EPMA (electron probe) Distribution ; (system solids inowanzova conductor zvinhu)
shanu, anode kubvongodza nzira
Conductive carbon black: Inoshandiswa se conductive agent. Basa: Kubatanidza hombe inoshanda zvinhu zvimedu kuita kuti conductivity ive yakanaka.
Copolymer latex - SBR (styrene butadiene rubber): inoshandiswa sebhainda. Kemikari zita: Styrene-Butadiene copolymer latex (polystyrene butadiene latex), mvura-soluble latex, yakasimba yemukati 48~50%, PH 4~7, inotonhora -5 ~ 0 °C, nzvimbo yekubikira inenge 100 °C, tembiricha yekuchengetedza 5 ~ 35 ° C. SBR is an anionic polymer dispersion ine yakanaka mechanical kugadzikana uye kushanda, uye ine high bond simba.
Sodium carboxymethyl cellulose (CMC) - (carboxymethyl cellulose sodium): inoshandiswa seyakakora uye kudzikamisa. Chitarisiko chichena kana chero floc faibha upfu kana chena hupfu, husina hwema, husina kunaka, husina chepfu; inonyungudika mumvura inotonhora kana mvura inopisa, kugadzira gel, mhinduro haina kwayakarerekera kana zvishoma alkaline, isinganyunguriki mu ethanol, ether, An organic solvent senge isopropyl alcohol kana acetone inonyungudika mu 60% aqueous solution ye ethanol kana acetone. Iine hygroscopic, yakagadzikana kuchiedza uye kupisa, viscosity inoderera nekuwedzera tembiricha, mhinduro yacho yakagadzikana pa pH 2 kusvika 10, PH yakaderera pane 2, yakaoma inonaya, uye pH yakakwirira kudarika 10. Kuchinja kwemavara kwekushisa kwaiva 227 ° C, tembiricha yecarbonization yaive 252 ° C, uye tension yepasi pe2% aqueous solution yaive 71 nm/n.
Iyo anode inosimudzira uye yekuputira maitiro ndeaya anotevera:
Yechitanhatu, cathode inokurudzira nzira
Conductive carbon black: Inoshandiswa se conductive agent. Basa: Kubatanidza hombe inoshanda zvinhu zvimedu kuita kuti conductivity ive yakanaka.
NMP (N-methylpyrrolidone): inoshandiswa sechinhu chinopisa. Zita remakemikari: N-Methyl-2-polyrrolidone, molecular formula: C5H9NO. N-methylpyrrolidone imvura inonhuhwirira zvishoma yeammonia inosanganiswa nemvura mune chero chikamu uye inenge yakanyatsosanganiswa nezvose zvinonyungudutsa (ethanol, acetaldehyde, ketone, aromatic hydrocarbon, nezvimwewo). The boiling point of 204 ° C, a flash point of 95 ° C. NMP is polar aprotic solvent ine low toxicity, high boiling point, yakanakisa solubility, selectivity uye kugadzikana. Inoshandiswa zvakanyanya mukubvisa aromatics; kucheneswa kweacetylene, olefins, diolefins. The solvent inoshandiswa papolymer uye yepakati yekupolymerization ikozvino inoshandiswa mukambani yedu yeNMP-002-02, iine kuchena kwe> 99.8%, chaiyo giravity ye1.025 ~ 1.040, uye mvura yemukati ye <0.005% (500ppm )
PVDF (polyvinylidene fluoride): inoshandiswa seyakakora uye bhainda. White powdery crystalline polymer ine hukama hwehukama hwe1.75 kusvika 1.78. Iyo ine yakanyanya kunaka UV kuramba uye kupikisa kwemamiriro ekunze, uye firimu rayo harina kuoma uye rakatsemuka mushure mekuiswa kunze kwemakumi maviri emakore kana maviri. Iyo dielectric zvimiro zvepolyvinylidene fluoride yakasarudzika, iyo dielectric inogara yakakwira kusvika 6-8 (MHz ~ 60Hz), uye dielectric kurasikirwa tangent yakakurawo, ingangoita 0.02 ~ 0.2, uye vhoriyamu kuramba yakadzikira zvishoma, inova 2 ×1014ΩNaN. Iyo tembiricha yekushandiswa kwenguva refu ndeye -40 ° C ~ +150 ° C, mune ino tembiricha renji, iyo polymer ine yakanaka mechanical properties. Iine tembiricha yekuchinja yegirazi ye -39 ° C, tembiricha yekumisikidza ye -62 ° C kana pasi, nzvimbo yekunyungudika yekristaro ingangoita 170 ° C, uye tembiricha yekuwora ye316 ° C kana kupfuura.
Cathode inokurudzira uye yekuputira maitiro:
7. Viscosity maitiro e slurry
1. Curve ye slurry viscosity ine nguva inokurudzira
Sezvo nguva yekukurudzira ichiwedzerwa, viscosity ye slurry inowanzova yakakosha yakagadzikana pasina kuchinja (inogona kutaurwa kuti slurry yakaparadzirwa zvakafanana).
2. Curve ye slurry viscosity ine tembiricha
Iyo yakakwirira tembiricha, inodzika iyo viscosity ye slurry, uye viscosity inotarisa kune yakagadzikana kukosha kana yasvika kune imwe tembiricha.
3. Curve yezvakasimba zvemukati wekutamisa tank slurry nenguva
Mushure mekunge slurry yamutswa, inopinzwa kune tangi yekutamisa yeCoater coating. Iyo tangi yekufambisa inomutswa kuti itenderere: 25Hz (740RPM), shanduko: 35Hz (35RPM) kuve nechokwadi chekuti maparamita e slurry akagadzikana uye haashanduke, kusanganisira pulp. Material tembiricha, viscosity uye yakasimba zvemukati kuti ive nechokwadi chekufanana kwe slurry coating.
4, iyo viscosity yeiyo slurry ine nguva curve
Nguva yekutumira: Oct-28-2019