Dab tsi yuav tsum tau ua thaum muaj nag lossis daus hauv electrophoretic xim kua?

Feem ntau, cov ntsiab lus tseem ceeb cuam tshuam rau nag lossis daus ntawm cov xim electrophoretic yog:

1.Cov impurity ions

Kev nkag mus ntawm homogeneous los yog heterogeneous impurity ions yog khi rau react nrog cov nqi resin ntawm cov xim los tsim ib co complexes los yog precipitates, thiab cov tsim ntawm cov tshuaj no rhuav tshem cov thawj electrophoretic zog thiab stability ntawm cov xim.

Qhov chaw ntawm impurity ions yog raws li nram no:

(1) impurity ions muaj nyob rau hauv cov xim nws tus kheej;

(2) Impurities coj los rau hauv thaum npaj electrophoretic xim kua;

(3) impurities coj los ntawm cov dej ua ntej kev kho mob tsis tiav;

(4) Cov dej tsis huv coj los rau hauv cov dej tsis huv thaum ntxuav dej ua ntej;

(5) Cov impurity ions tsim los ntawm kev tawg ntawm phosphate zaj duab xis;

(6) Cov impurity ions tsim los ntawm anode yog yaj.

Los ntawm kev soj ntsuam saum toj no, nws tuaj yeem pom tau tias qhov zoo ntawm pretreatment ntawm txheej yuav tsum tau tswj nruj me ntsis. Qhov no tsis yog tsuas yog tsim nyog los txhim kho qhov zoo ntawm cov khoom txheej, tab sis kuj tseem ceeb heev kom muaj kev ruaj ntseg ntawm cov xim electrophoretic. Nyob rau tib lub sijhawm, los ntawm kev txheeb xyuas saum toj no kuj tuaj yeem piav qhiauasCov dej ntshiab huv thiab phosphating tov kev xaiv (kev sib txuam) yog qhov tseem ceeb npaum li cas. 

2. Cov kuab tshuaj

Txhawm rau ua kom cov txheej txheej electrophoretic muaj qhov sib txawv zoo thiab cov dej solubility, cov xim qub feem ntau muaj qee feem ntawm cov kuab tshuaj organic. Hauv kev tsim khoom ib txwm muaj, kev noj cov kuab tshuaj organic nrog kev rov ua haujlwm ntawm cov xim ua haujlwm thiab tau txais cov khoom ntxiv raws sijhawm. Tab sis yog tias cov khoom lag luam tsis zoo li qub lossis qhov kub thiab txias dhau, ua rau cov kuab tshuaj noj (volatilization) nrawm dhau thiab tsis tuaj yeem muab ntxiv rau lub sijhawm, kom nws cov ntsiab lus raug txo kom tsawg ntawm cov hauv qab no, kev ua haujlwm. ntawm cov xim yuav kuj hloov, uas ua rau cov zaj duab xis nyias, thiab, nyob rau hauv loj heev zaum, nws kuj yuav ua rau cov xim nyob rau hauv lub resin cohesion los yog nag lossis daus. Yog li ntawd, nyob rau hauv tus txheej txheem ntawm kev tswj cov kua tank, cov neeg ua hauj lwm tswj yuav tsum tau them sai sai rau qhov kev hloov ntawm cov kuab tshuaj nyob rau hauv electrophoretic xim kua nyob rau hauv lub sij hawm twg los tau, thiab yog hais tias tsim nyog, soj ntsuam cov kuab tshuaj cov ntsiab lus thiab ua kom ceev npaum li cas ntawm cov kuab tshuaj nyob rau hauv lub sij hawm.

3. Kub

Ntau yam xim kuj muaj qhov hloov pauv ntawm qhov kub thiab txias. Qhov kub nce lossis txo qis yuav ua kom nrawm lossis qeeb ntawm cov txheej txheem electrodeposition, yog li cov txheej txheem txheej txheej thicker lossis thinner. Yog hais tias cov xim kub yog siab dhau lawm, cov kuab tshuaj volatilization sai dhau, yooj yim ua rau xim cohesion thiab nag lossis daus. Txhawm rau ua kom cov xim kub ib txwm nyob rau hauv ib qho txheeb ze "lub xeev kub tsis tu ncua", yuav tsum tau nruab nrog lub ntsuas kub.

4.Solid cov ntsiab lus

Cov ntsiab lus ntawm cov xim tsis tsuas yog cuam tshuam rau cov txheej txheem zoo, tab sis kuj cuam tshuam rau kev ruaj ntseg ntawm cov xim. Yog tias cov ntsiab lus ntawm cov xim qis dhau, qhov viscosity raug txo, uas ua rau cov nag lossis daus ntawm cov xim. Tau kawg, cov khib nyiab siab dhau lawm tsis xav tau, vim tias siab dhau lawm, cov xim pleev xim tom qab ua luam dej nce, qhov poob ntawm qhov nce, txo qhov kev siv ntawm cov xim, kom tus nqi nce.

5. Kev nplawm nplawm

Hauv cov txheej txheem tsim khoom, cov neeg ua haujlwm tswj hwm yuav tsum tau ua tib zoo saib xyuas seb cov xim ntawm cov xim electrophoretic nplawm yog qhov zoo lossis tsis zoo, thiab seb qhov siab ntawm qee cov twj paj nruag (xws li cov ntxaij lim dej, ultrafilters) yog qhov qub lossis tsis zoo. Xyuas kom meej tias cov xim ncig 4-6 zaug hauv ib teev, thiab qhov ntws ntawm cov xim hauv qab yog li 2 npaug ntawm cov xim ntws ntawm cov xim ntawm qhov chaw, thiab tsis txhob ua rau lub tank electrophoresis tsim ib lub ces kaum tuag. nplawm. Tsis txhob nplawm tshwj tsis yog muaj xwm txheej tshwj xeeb.