Da farko, ka'idar hadawa
Ta hanyar motsa ruwan wukake da firam ɗin juyawa don juyawa juna, ana samar da dakatarwar injina kuma ana kiyaye ta, kuma ana ƙara yawan canja wurin taro tsakanin ruwa da matakai masu ƙarfi. Yawanci ana raba motsin ruwa mai ƙarfi zuwa sassa masu zuwa: (1) dakatar da ƙwayoyin halitta masu ƙarfi; (2) sake dakatar da ƙwayoyin halitta masu ƙarfi; (3) shigar da ƙwayoyin halitta da aka dakatar cikin ruwa; (4) amfani tsakanin ƙwayoyin halitta da tsakanin ƙwayoyin halitta da faifan mazugi Ƙarfin yana sa ƙwayoyin halitta su haɗu ko su sarrafa girman ƙwayoyin halitta; (5) canja wurin taro tsakanin ruwa da ƙarfi.
Na biyu, tasirin motsawa
Tsarin haɗa sinadarai a zahiri yana haɗa sassa daban-daban a cikin slurry tare a cikin daidaitaccen rabo don shirya slurry don sauƙaƙe rufewa iri ɗaya da kuma tabbatar da daidaiton sassan sandunan. Sinadaran gabaɗaya sun ƙunshi matakai guda biyar, wato: kafin a yi magani, haɗawa, jika, watsawa da kuma flocculation na kayan.
Na uku, sigogin slurry
1, danko:
An bayyana juriyar ruwa zuwa kwarara a matsayin adadin matsin lamba da ake buƙata a kowace 25 px 2 plane lokacin da ruwan ke gudana a cikin saurin 25 px/s, wanda ake kira kinematic viscosity, a cikin Pa.s.
Danko siffa ce ta ruwa. Lokacin da ruwa ke gudana a cikin bututun, akwai yanayi uku na kwararar laminar, kwararar canji, da kwararar rudani. Waɗannan yanayin kwarara uku suma suna nan a cikin kayan aikin juyawa, kuma ɗaya daga cikin manyan sigogin da ke tantance waɗannan yanayin shine dankowar ruwan.
A lokacin juyawa, gabaɗaya ana ɗaukar cewa ɗanɗanon bai kai Pa5 ba. Ruwan ɗanɗanon yana da ƙarancin ɗanɗanon, kamar: ruwa, man castor, sukari, jam, zuma, man shafawa, ƙarancin ɗanɗanon emulsion, da sauransu; Pa5-50 shine ruwan ɗanɗanon matsakaici. Misali: tawada, man goge baki, da sauransu; Pa50-500 sune ruwan ɗanɗanon mai mai yawa, kamar cingam, plastisol, man fetur mai ƙarfi, da sauransu; Pa500 sune ruwan ɗanɗanon mai mai yawa kamar: gaurayen roba, narkewar filastik, silicon na halitta da sauransu.
2, girman barbashi D50:
Girman girman barbashi na kashi 50% ta hanyar girman barbashi a cikin slurry
3, abun ciki mai ƙarfi:
Kashi na abu mai ƙarfi a cikin slurry, rabon ka'idar abun ciki mai ƙarfi ya ƙasa da abun da ke cikin jigilar kaya.
Na huɗu, ma'aunin tasirin gauraye
Hanya don gano daidaiton haɗuwa da haɗuwa na tsarin dakatar da ruwa mai ƙarfi:
1, auna kai tsaye
1) Hanyar danko: ɗaukar samfur daga wurare daban-daban na tsarin, auna danko na slurry da viscometer; ƙaramin karkacewar, haka haɗin zai zama iri ɗaya;
2) Hanyar barbashi:
A, ɗaukar samfur daga wurare daban-daban na tsarin, ta amfani da na'urar goge girman barbashi don lura da girman barbashi; kusancin girman barbashi da girman foda na kayan, haka haɗin zai zama iri ɗaya;
B, ɗaukar samfur daga wurare daban-daban na tsarin, ta amfani da na'urar gwajin girman barbashi ta laser don lura da girman barbashi na slurry; yayin da yawan rarraba girman barbashi ya zama daidai, ƙarami mafi girma barbashi, haka haɗin ya zama iri ɗaya;
3) Hanyar nauyi ta musamman: ɗaukar samfur daga wurare daban-daban na tsarin, auna yawan slurry, ƙaramar karkacewar, haɗuwar ta fi kama da juna
2. Aunawa kai tsaye
1) Hanyar abun ciki mai ƙarfi (macroscopic): Samfurin samfuri daga wurare daban-daban na tsarin, bayan yanayin zafi da lokacin yin burodi, auna nauyin ɓangaren mai ƙarfi, ƙaramar karkacewar, haɗuwar ta fi kama da juna;
2) SEM/EPMA (ƙananan ƙwayoyin cuta): samfurin daga wurare daban-daban na tsarin, a shafa a kan substrate, a bushe, sannan a lura da barbashi ko abubuwan da ke cikin fim ɗin bayan an busar da slurry ɗin ta hanyar SEM (ƙananan ƙwayoyin cuta na lantarki) / EPMA (ƙananan ƙwayoyin cuta na lantarki). Rarrabawa; (ƙananan ƙwayoyin cuta na tsarin galibi kayan jagora ne)
Tsarin motsa anode guda biyar,
Baƙin carbon mai jurewa: Ana amfani da shi azaman wakili mai jurewa. Aiki: Haɗa manyan barbashi masu aiki don sa watsawa ta yi kyau.
Latex na Copolymer — SBR (roba ta styrene butadiene): ana amfani da shi azaman abin ɗaurewa. Sunan sinadarai: Latex na Styrene-Butadiene copolymer (latex na polystyrene butadiene), latex mai narkewa cikin ruwa, abun da ke cikin tauri 48~50%, PH 4~7, wurin daskarewa -5~0 °C, wurin tafasa kusan 100 °C, zafin ajiya 5~35 °C. SBR wani abu ne na polymer na anionic wanda ke da kyakkyawan kwanciyar hankali da aiki, kuma yana da ƙarfin haɗin gwiwa mai yawa.
Sodium carboxymethyl cellulose (CMC) – (carboxymethyl cellulose sodium): ana amfani da shi azaman mai kauri da mai daidaita. Bayyanar ta kasance fari ko rawaya ko foda mai launin floc, ba shi da wari, ba shi da ɗanɗano, ba shi da guba; yana narkewa a cikin ruwan sanyi ko ruwan zafi, yana samar da gel, maganin yana tsaka tsaki ko ɗan alkaline, ba ya narkewa a cikin ethanol, ether. Maganin narkewa kamar isopropyl alcohol ko acetone yana narkewa a cikin ruwan ethanol ko acetone kashi 60%. Yana da hygroscopic, yana da daidaito ga haske da zafi, danko yana raguwa tare da ƙaruwar zafin jiki, maganin yana da daidaito a pH 2 zuwa 10, PH ya ƙasa da 2, ana haifar da daskararru, kuma pH ya fi 10. Zafin canjin launi ya kasance 227 ° C, zafin carbonization ya kasance 252 ° C, kuma tashin hankali na saman maganin ruwa na 2% shine 71 nm/n.
Tsarin juyawa da shafa anode kamar haka:
Na shida, tsarin juyawar cathode
Baƙin carbon mai jurewa: Ana amfani da shi azaman wakili mai jurewa. Aiki: Haɗa manyan barbashi masu aiki don sa watsawa ta yi kyau.
NMP (N-methylpyrrolidone): ana amfani da shi azaman mai narkewa. Sunan sinadarai: N-Methyl-2-polyrrolidone, dabarar kwayoyin halitta: C5H9NO. N-methylpyrrolidone ruwa ne mai ɗan ƙamshi mai ɗan ammonia wanda ake iya mirgine shi da ruwa a kowane rabo kuma kusan an haɗa shi gaba ɗaya da duk abubuwan narkewa (ethanol, acetaldehyde, ketone, aromatic hydrocarbon, da sauransu). Wurin tafasa na 204 ° C, wurin walƙiya na 95 ° C. NMP wani mai narkewa ne mai ƙarancin guba, wurin tafasa mai yawa, kyakkyawan narkewa, zaɓi da kwanciyar hankali. Ana amfani da shi sosai a cikin cire ƙanshi; tsarkake acetylene, olefins, diolefins. Ana amfani da mai narkewa da aka yi amfani da shi don polymer da matsakaici don polymerization a kamfaninmu a halin yanzu don NMP-002-02, tare da tsarkin >99.8%, takamaiman nauyi na 1.025~1.040, da kuma yawan ruwa na <0.005% (500ppm).
PVDF (polyvinylidene fluoride): ana amfani da shi azaman mai kauri da mannewa. Farin polymer mai launin foda mai kauri tare da yawan da ya kai 1.75 zuwa 1.78. Yana da juriyar UV mai kyau da juriyar yanayi, kuma fim ɗinsa ba shi da tauri da fashewa bayan an sanya shi a waje na tsawon shekaru ɗaya ko ashirin. Halayen dielectric na polyvinylidene fluoride na musamman ne, ma'aunin dielectric yana da tsayi har zuwa 6-8 (MHz ~ 60Hz), kuma tangent na asarar dielectric shima babba ne, kusan 0.02 ~ 0.2, kuma juriyar girma tana da ɗan ƙasa, wanda shine 2 × 1014ΩNaN. Zafin amfani da shi na dogon lokaci shine -40 ° C ~ + 150 ° C, a cikin wannan kewayon zafin jiki, polymer yana da kyawawan halaye na injiniya. Yana da zafin canzawa na gilashi na -39 ° C, zafin embrittlement na -62 ° C ko ƙasa da haka, wurin narkewar lu'ulu'u na kimanin 170 ° C, da zafin narkewar zafi na 316 ° C ko fiye.
Tsarin juyawa da shafi na cathode:
7. Halayen danko na slurry
1. Lanƙwasa na danko mai laushi tare da lokacin juyawa
Yayin da lokacin juyawa ke ƙaruwa, ɗanɗanon slurry ɗin yakan zama mai karko ba tare da canzawa ba (ana iya cewa slurry ɗin ya warwatse gaba ɗaya).
2. Lanƙwasa na danko mai laushi tare da zafin jiki
Mafi girman zafin jiki, haka nan ƙarancin danko na slurry, kuma danko yana da matuƙar tasiri idan ya kai wani yanayi na zafi.
3. Lanƙwasa na sinadarin da ke cikin tankin canja wuri da lokaci
Bayan an gauraya slurry ɗin, ana tura shi zuwa tankin canja wuri don shafa Coater. Ana motsa tankin canja wuri don juyawa: 25Hz (740RPM), juyin juya hali: 35Hz (35RPM) don tabbatar da cewa sigogin slurry ɗin sun tabbata kuma ba za su canza ba, gami da ɓangaren litattafan almara. Zafin abu, ɗanko da abun ciki mai ƙarfi don tabbatar da daidaiton murfin slurry.
4, danko na slurry tare da lanƙwasa lokaci
Lokacin Saƙo: Oktoba-28-2019