Marka hore, mabda'a isku darka
Marka la walaaqo daabyada iyo qaab-dhismeedka wareega si ay isu wareejiyaan, joojinta farsamada ayaa la sameeyaa oo la ilaaliyaa, wareejinta cufka u dhaxaysa marxaladaha dareeraha iyo adagna waa la xoojiyaa. Kacsanaanta dareeraha adag badanaa waxaa loo qaybiyaa qaybaha soo socda: (1) joojinta walxaha adag; (2) dib u soo celinta walxaha deggan; (3) soo dhex gelinta walxaha la hakiyay dareeraha; (4) isticmaalka inta u dhaxaysa walxaha iyo inta u dhaxaysa walxaha iyo baaldiyada Xooggu wuxuu sababaa in walxaha isku dhafan ay kala firdhaan ama xakameeyaan cabbirka walxaha; (5) wareejinta cufka u dhexeeya dareeraha iyo adag.
Marka labaad, saameynta walaaqidda
Habka isku-darka ayaa dhab ahaantii isku daraya qaybaha kala duwan ee ku jira isku-darka si isku mid ah si loo diyaariyo isku-darka si loo fududeeyo dahaarka isku midka ah loona hubiyo isku-dhafka qaybaha tiirka. Maaddooyinka guud ahaan waxay ka kooban yihiin shan hab-raac, kuwaas oo kala ah: ka hor daaweynta, isku-darka, qoynta, kala-baxa iyo isku-darka walxaha ceeriin ah.
Saddexaad, xuduudaha slurry
1, isku-dhafnaan:
Iska caabbinta dareeraha ee socodka waxaa lagu qeexaa xaddiga cadaadiska jarista ee loo baahan yahay 25 px 2 plane marka dareeruhu ku socdo xawaare dhan 25 px/s, oo loo yaqaan kinematic viscosity, ee Pa.s.
Viscosity waa astaamo dareerayaasha. Marka dareeruhu ku socdo dhuumaha, waxaa jira saddex xaaladood oo ah socodka laminar, socodka ku-meel-gaarka ah, iyo socodka qaloocan. Saddexdan xaaladood ee socodka ayaa sidoo kale ku jira qalabka walaaqaya, mid ka mid ah xuduudaha ugu muhiimsan ee go'aaminaya xaaladahan waa dheellitirka dareeraha.
Inta lagu jiro habka walaaqidda, guud ahaan waxaa loo arkaa in viscosity-gu uu ka yar yahay 5 Pa.s waa dareere viscosity hooseeya, sida: biyo, saliid castor ah, sonkor, macaan, malab, saliid saliidaynaysa, emulsion viscosity hooseeya, iwm.; 5-50 Pas waa dareere viscosity dhexdhexaad ah Tusaale ahaan: khad, daawada cadayga, iwm.; 50-500 Pas waa dareere viscosity sare leh, sida xanjo calalaysa, plastisol, shidaal adag, iwm.; in ka badan 500 Pas waa dareere viscosity sare leh sida: isku darka caagga ah, dhalaalka balaastikada, Silicon organic iwm.
2, cabbirka walxaha D50:
Kala duwanaanshaha cabbirka walxaha 50% marka loo eego mugga walxaha ku jira slurry-ka
3, waxyaabaha adag:
Boqolleyda walxaha adag ee ku jira slurry, saamiga aragtiyeed ee waxyaabaha adag ayaa ka yar nuxurka adag ee shixnadda
Afaraad, cabbirka saamaynta isku dhafan
Hab lagu ogaanayo isku-darka isku-darka iyo isku-darka nidaamka joojinta dareeraha adag:
1, cabbir toos ah
1) Habka viscosity: muunad ka qaadida boosas kala duwan oo nidaamka ah, cabbiraadda viscosity-ga slurry-ka iyadoo la adeegsanayo qalab cabbira; leexashada yar, ayaa isku darka sii wadaya;
2) Habka walxaha:
A, muunad ka qaadid meelo kala duwan oo nidaamka ah, iyadoo la adeegsanayo xoqe cabirka walxaha si loo eego cabbirka walxaha ee slurry-ka; marka cabbirka walxaha uu u dhawaado cabbirka budada ceeriin, ayaa isku darka uu sii siman yahay;
B, muunad ka qaadid meelo kala duwan oo nidaamka ah, iyadoo la adeegsanayo tijaabiye cabbirka walxaha kala-soocidda laysarka si loo eego cabbirka walxaha ee slurry-ka; inta ay caadi tahay qaybinta cabbirka walxaha, ayaa ay yaraanaysaa walxaha waaweyn, isku-darka ayaa sii wadaya isku-dhafka;
3) Habka gaarka ah ee cufisjiidadka: muunad ka qaadashada boosaska kala duwan ee nidaamka, cabbiraadda cufnaanta slurry-ka, leexashada yar, isku-darka oo sii siman
2. Cabbiraad aan toos ahayn
1) Habka cufnaanta adag (macroscopic): Ka soo qaadashada muunad ka timid meelo kala duwan oo nidaamka ah, ka dib marka heerkulka iyo waqtiga la dubo, cabbiraadda miisaanka qaybta adag, marka leexashadu yar tahay, isku darka ayaa sii wada isku mid ah;
2) SEM/EPMA (microscopic): muunad laga soo qaaday meelo kala duwan oo nidaamka ah, ku mari substrate-ka, qalaji, oo fiiri walxaha ama walxaha ku jira filimka ka dib marka la qalajiyo slurry-ka iyadoo la adeegsanayo SEM (microscope elektaroonik ah) / EPMA (baaritaanka elektarooniga ah) Qaybinta; (adkaha nidaamku badanaa waa walxaha gudbiyaha)
Shan, habka walaaqidda anode
Madow kaarboon ah oo gudbiya: Waxaa loo isticmaalaa sidii wakiil gudbiya. Shaqada: Isku xirka walxaha firfircoon ee waaweyn si ay u noqdaan kuwo wanaagsan.
Latex-ka Copolymer-ka — SBR (kaarboorka styrene butadiene): waxaa loo isticmaalaa sidii xidhmo. Magaca kiimikada: Latex-ka copolymer-ka Styrene-Butadiene (latex-ka polystyrene butadiene), latex-ka biyaha ku milma, waxa ku jira 48~50%, PH 4~7, barta barafowga -5~0 °C, barta karkaraya qiyaastii 100 °C, heerkulka kaydinta 5~35 °C. SBR waa kala firdhis polymer ah oo anionic ah oo leh xasillooni farsamo iyo shaqeyn wanaagsan, waxayna leedahay xoog isku xidhnaan oo sarreeya.
Sodium carboxymethyl cellulose (CMC) – (carboxymethyl cellulose sodium): waxaa loo isticmaalaa sidii dhumuc-dhejin iyo xasiliye. Muuqaalku waa budo cad ama jaalle ah oo floc fiber ah ama budo cad, aan ur lahayn, dhadhan lahayn, aan sun ahayn; waxaa lagu milmaa biyo qabow ama biyo kulul, iyadoo la samaynayo jel, xalku waa dhexdhexaad ama waxoogaa alkaline ah, aan lagu milmi karin ethanol, ether. Dareeraha dabiiciga ah sida isopropyl alcohol ama acetone ayaa lagu milmaa 60% xal biyo ah oo ethanol ama acetone ah. Waa hygroscopic, waa mid deggan iftiinka iyo kulaylka, viscosity-gu wuu yaraadaa marka heerkulku kordho, xalku waa mid deggan pH 2 ilaa 10, PH wuxuu ka hooseeyaa 2, adkeyaashu waa la soo daadiyaa, pH-na wuxuu ka sarreeyaa 10. Heerkulka isbeddelka midabka wuxuu ahaa 227 ° C, heerkulka kaarboonaynta wuxuu ahaa 252 ° C, xiisadda dusha sare ee xalka biyaha ee 2% wuxuu ahaa 71 nm/n.
Habka walaaqidda iyo dahaarka anode-ka waa sidan soo socota:
Lixaad, habka walaaqidda katooliga
Madow kaarboon ah oo gudbiya: Waxaa loo isticmaalaa sidii wakiil gudbiya. Shaqada: Isku xirka walxaha firfircoon ee waaweyn si ay u noqdaan kuwo wanaagsan.
NMP (N-methylpyrrolidone): waxaa loo isticmaalaa sidii dareere walaaqaya. Magaca kiimikada: N-Methyl-2-polyrrolidone, qaacidada molecular: C5H9NO. N-methylpyrrolidone waa dareere ur yar oo ammonia ah kaas oo lagu qasi karo biyaha qayb kasta oo ku dhawaad gebi ahaanba lagu qasi karo dhammaan dareerayaasha (ethanol, acetaldehyde, ketone, hydrocarbon aromatic, iwm.). Barta karkaraya ee 204 ° C, barta iftiinka ee 95 ° C. NMP waa dareere aprotic polar ah oo leh sun yar, dhibic karkaraya oo sareysa, milmi aad u fiican, xulasho iyo xasillooni. Si ballaaran ayaa loogu isticmaalaa soo saarista udgoonka; nadiifinta acetylene, olefins, diolefins. Dareeraha loo isticmaalo polymer-ka iyo dhexdhexaadka polymer-ka ayaa hadda loo isticmaalaa shirkaddayada NMP-002-02, oo leh daahirnimo >99.8%, cufnaan gaar ah oo ah 1.025~1.040, iyo biyo ka kooban <0.005% (500ppm).
PVDF (polyvinylidene fluoride): waxaa loo isticmaalaa sidii dhumuc-dherer iyo xidhmo. Polymer budo cad oo crystalline ah oo leh cufnaan qaraabo ah oo u dhaxaysa 1.75 ilaa 1.78. Waxay leedahay iska caabin aad u wanaagsan oo UV ah iyo iska caabin cimilo, filimkeeduna ma aha mid adag oo dildilaacsan ka dib markii la dhigo bannaanka muddo hal ama laba sano ah. Sifooyinka dielectric ee polyvinylidene fluoride waa kuwo gaar ah, joogtada dielectric-ka waa mid aad u sarreysa ilaa 6-8 (MHz ~ 60Hz), tangent-ka luminta dielectric-ka sidoo kale waa weyn yahay, qiyaastii 0.02 ~ 0.2, iska caabinta muggana waa wax yar ka hooseeya, kaas oo ah 2 × 1014ΩNaN. Heerkulka isticmaalka muddada dheer waa -40 ° C ~ +150 ° C, heerkulkan, polymer-ku wuxuu leeyahay sifooyin farsamo oo wanaagsan. Waxay leedahay heerkul wareeg galaas ah oo ah -39 ° C, heerkul nuugid ah oo ah -62 ° C ama ka yar, dhibic dhalaalaysa oo ah qiyaastii 170 ° C, iyo heerkul kala-go' kulka ah oo ah 316 ° C ama ka badan.
Habka walaaqidda iyo dahaarka ee katooliga:
7. Astaamaha nuugista ee slurry-ka
1. Qalooca isku-dhafka slurry-ka oo leh waqti walaaq leh
Marka wakhtiga walaaqidda la dheereeyo, daxalka slurry-ku wuxuu u janjeeraa inuu noqdo qiimo deggan isagoon isbeddelin (waxaa la dhihi karaa slurry-gu si isku mid ah ayuu u kala firdhiyey).
2. Qalooca isku-dhafka slurry iyo heerkulka
Heerkulka oo sarreeya, ayaa hoos u dhaca dheellitirka slurry-ka, dheellitirkuna wuxuu u janjeeraa inuu noqdo qiime deggan marka uu gaaro heerkul gaar ah.
3. Qalooca ku jira dareeraha haanta wareejinta waqti ka dib
Ka dib marka la walaaqo dareeraha, waxaa lagu shubaa tuubada wareejinta si loogu dahaadho dahaarka. Taangiga wareejinta ayaa la walaaqayaa si uu u wareego: 25Hz (740RPM), kacaan: 35Hz (35RPM) si loo hubiyo in xuduudaha dareeraha ay yihiin kuwo deggan oo aan isbeddeli doonin, oo ay ku jiraan saxarka. Heerkulka maaddada, dhecsanaanta iyo waxyaabaha adag si loo hubiyo isku mid ahaanshaha dahaarka dareeraha.
4, daxalka slurry-ka oo leh qalooca waqtiga
Waqtiga boostada: Oktoobar-28-2019