Raudaws teeb meem khawb hauv coatersua tau zoo, nws yog ib qho tseem ceeb los txheeb xyuas ntau hom khawb, nkag siab tias cov khoom tsim tawm li cas, thiab txheeb xyuas cov txheej txheem tsis xws luag thoob plaws hauv txheej txheej txheej txheej. Ib txoj hauv kev daws teeb meem zoo pab txhim kho txheej txheej zoo, txo qhov tsis xws luag, thiab ua kom ruaj khov ua haujlwm.
I. Kev faib tawm ntawm khawb
Particle scratches:Tsim los ntawm cov yeeb yaj kiab ntub dej theem. Cov khoom tawv tawv hauv cov slurry los yog raws txheej txheej plough grooves rau hauv cov txheej uas tsis tau qhuav ntawm lub taub hau txheej los yog tsav cov chais. Lawv feature du nto sab hauv thiab tsis tu ncua kev faib raws li txheej txheej.
Mechanical khawb:Tsim tom qab daim ntawv electrode qhuav los yog txawm tias qhov txhab, tshwm sim los ntawm kev khawb ncaj qha los ntawm cov khoom tawv. Cov npoo ntawm cov khawb no feem ntau nrog curling ntawm cov ntawv ci thiab txheej, thiab lawv raug cais raws li kev puas tsuaj sab nraud.
II. Kev tsim cov particles
Slurry:Slurry yog ib qho dispersion ntawm cov khoom siv nrog rau cov khoom siv, cov khoom siv hluav taws xob thiab cov binders hauv cov kuab tshuaj. Nano conductive agents muaj zog saum npoo; Tsis txaus stirring shear quab yuam los yog cov txheej txheem tsis zoo tuaj yeem ua rau agglomeration.
Kev puas tsuaj tsis txaus ntawm PVDF binder lossis kev sib cuag nrog cov kab ya raws yuav ua rau cov khoom siv elastic. Ob leeg agglomerates thiab gel hais tuaj yeem ua rau khawb hauv qab tus kws kho mob hniav.
Cov ntaub ntawv raw:Cov khoom siv cathode muaj qhov dav particle loj faib nrog cov khoom loj; ib puag ncig cov plua plav tau sib xyaw rau hauv lub sijhawm thauj mus los thiab noj cov txheej txheem.
Khoom siv thiab kav dej system:Cov seem slurry lumps ntawm cov phab ntsa tsis txaus ntawm kev sib xyaw tso tsheb hlau luam, xa cov kav dej thiab cov twj slurry tig mus rau hauv cov khoom nyuaj; hlau shavings yog tsim los ntawm cov khoom siv; lim cov ntxaij vab tshaus nrog zoo heev mesh tsis cuam tshuam cov khoom, thaum cov ntxaij vab tshaus puas poob lawv cov kev cuam tshuam tag nrho, tso cai rau cov khoom hla ncaj qha mus rau lub taub hau txheej.
Ib puag ncig thiab kev ua haujlwm:Txawm hais tias muaj kev huv huv ntawm lub taub hau txheej, kev tswj tsis zoo ib puag ncig tso cai rau cov plua plav hauv huab cua kom poob rau hauv lub tank slurry los yog mus rau qhov chaw ntub dej ntub dej, ncaj qha tsim khawb.
Daim ntawv qhia roller adhesion:Yog tias cov khoom siv slurry tau ua raws li qhov chaw ntawm cov ntawv qhia chais ntawm lub qhov cub inlet thiab qhov hluav taws xob, lawv yuav nias khawb rau hauv daim ntawv hlais electrode.
III. Evolution of Particles rau hauv khawb
Txoj hauj lwm:Particles embedded nyob rau hauv lub txheej tsuas yog tsim protrusions. Yog tias lawv tau daig hauv qhov sib txawv ntawm txheej lossis ua raws li tus kws kho mob hniav ntug, lawv yuav tsim khawb thaum lawv raug rub nrog lub vev xaib txav.
Siab:Cov kws kho mob ntau dhau lub siab los yog qhov sib txawv tsis tsim nyog ntawm lub nraub qaum -up yob thiab txheej yob yuav nias cov khoom rau hauv lub substrate, ua kom qhov tob thiab dav ntawm khawb.
Motion xeev:Thaum lub coater khiav, ib tug ruaj particle tsim ib tug nruam ncaj kos, thaum ib tug intermittently ntog particle ua segmented khawb.
IV. Particle Defect Mechanisms sib txawv los ntawm txheej txheej
Comma kws kho hniav txheej:Heev rhiab heev rau particles. Tus kws kho mob hniav yog nyob rau hauv kev sib cuag ncaj qha nrog cov yeeb yaj duab ntub dej, thiab hais tias ntes tau ntawm cov hniav ntug yuav luag tawm ncaj, nruam khawb nrog cov dav dav.
Micro-gravure txheej:Cov khoom uas nyob rau hauv gravure yob hlwb ua rau pinhole -zoo li tus txheej txheem deficiencies, thaum hais tias adhering rau lub yob nto nias tawm pits.
Slot tuag txheej:Particles clogging qhov tuag di ncauj qhov sib txawv tsim khawb ntawm qhov sib txawv qhov tob, thiab kev puas tsuaj rau daim di ncauj nws tus kheej yuav ua kom muaj qhov tsis xws luag.
V. Txheej txheem daws teeb meem
Txheeb xyuas lub hauv paus ua rau Analysis los ntawm morphology:Thawj zaug paub meej txog peb tus yam ntxwv tseem ceeb: Puas yog cov khawb txuas ntxiv lossis cuam tshuam? Puas yog lawv qhov sib txawv? Puas yog lawv tshwm sim hauv ib pawg tshwj xeeb lossis thoob plaws txhua pawg?
Slurry ntsuam xyuas:Tshawb xyuas cov ntaub ntawv sib xyaw kom paub tseeb seb qhov kev noj zaub mov zoo li cas, nws lub sijhawm sib xyaw thiab kev sib cais shear tsis ua raws li cov lus qhia tshwj xeeb.
Kev soj ntsuam cov cuab yeej:Tshawb xyuas cov ntaub ntawv txij nkawm kom paub meej tias lub voj voog hloov lim dej, cov ntaub ntawv tu cov kav dej thiab qhia cov menyuam tu zaus.
Ib puag ncig kev tshuaj ntsuam:Tshawb xyuas cov ntaub ntawv huv huv kom paub meej tias seb cov hmoov av puas suav hauv thaj chaw lub taub hau ua tau raws li tus qauv.
Txheeb xyuas qhov kev xav los ntawm ib qho - cov kev xeem sib txawv:Hloov nrog ib pawg tshiab ntawm slurry - yog khawb ploj, qhov teeb meem nyob hauv cov slurry. Yog tias qhov tsis xws luag raug tshem tawm tom qab ntxuav cov ntawv qhia rollers, qhov teeb meem yog qhia cov menyuam adhesion. Yog tias khawb hloov tom qab kho tus kws kho mob lub siab, lub siab tsis ua haujlwm tsis tsim nyog.
