Cov txiaj ntsig ntawm Kev Siv Ceramic Qib Carboxymethyl Cellulose (CMC)
Carboxymethyl cellulose (CMC) yog ntau yam cellulose derivative siv dav hauv ntau daim ntawv thov kev lag luam. Hauv ceramics, kev siv cov ceramic qib CMC muaj ntau cov txiaj ntsig, txhim kho cov txheej txheem tsim khoom thiab qhov zoo ntawm cov khoom kawg.
1. Txhim kho Rheological Properties
Ib qho ntawm cov txiaj ntsig tseem ceeb ntawm kev siv ceramic qib CMC yog nws lub peev xwm los txhim kho cov khoom rheological ntawm ceramic slurries. Rheology hais txog tus cwj pwm ntws ntawm cov ntaub ntawv, uas yog qhov tseem ceeb hauv kev ua cov ceramics. CMC ua raws li cov thickener, stabilizing cov slurry thiab ua kom muaj kev sib xws. Qhov kev txhim kho hauv cov khoom rheological no ua rau muaj kev tswj xyuas zoo dua thaum lub sij hawm tsim thiab tsim cov txheej txheem, xws li plam casting, extrusion, thiab txhaj tshuaj molding.
2. Txhim khu kev ruaj khov
CMC ua hauj lwm raws li ib tug zoo binder nyob rau hauv ceramic formulations. Nws txhim kho lub zog ntsuab ntawm lub cev ceramic, uas yog lub zog ntawm cov ceramics ua ntej lawv raug rho tawm haujlwm. Qhov kev sib txuas ntxiv zog no pab tswj kev ncaj ncees thiab cov duab ntawm cov khoom siv ceramic thaum tuav thiab machining. Kev txhim kho ntsuab lub zog kuj txo qhov muaj feem cuam tshuam thiab tawg, ua rau muaj txiaj ntsig ntau dua thiab pov tseg tsawg dua.
3. Kev ncua kev ruaj ntseg zoo dua
Kev ncua kev ruaj ntseg yog qhov tseem ceeb hauv kev tiv thaiv qhov chaw ntawm cov khoom hauv ceramic slurries. CMC pab tswj lub homogeneous suspension los ntawm kev tiv thaiv cov agglomeration thiab sedimentation ntawm hais. Qhov kev ruaj ntseg no yog qhov tseem ceeb rau kev ua kom zoo ib yam hauv cov khoom siv ceramic kawg. Nws tso cai rau kev faib cov particle zoo ib yam, uas ua rau lub zog txhua yam thiab zoo nkauj ntawm cov ceramics.
4. Tswj dej tuav
Kev tuav dej yog qhov tseem ceeb hauv kev tsim cov txheej txheem ceramic. CMC tswj cov dej hauv cov khoom siv ceramic, muab cov txheej txheem ziab kom qhuav. Cov dej tswj tuav no pab tiv thaiv cov kab nrib pleb thiab warping thaum ziab, uas yog cov teeb meem tshwm sim hauv kev tsim cov ceramic. Los ntawm kev ua kom lub cev qhuav dej tsis sib xws, CMC txhawb nqa qhov ruaj khov thiab tag nrho cov khoom siv ceramic.
5. Txhim kho kev ua haujlwm thiab cov yas
Qhov sib ntxiv ntawm ceramic qib CMC txhim khu kev ua haujlwm thiab plasticity ntawm ceramic lub cev. Cov cuab yeej no muaj txiaj ntsig tshwj xeeb hauv cov txheej txheem xws li extrusion thiab molding, qhov twg cov av nplaum yuav tsum pliable thiab yooj yim rau cov duab. Kev txhim kho plasticity tso cai rau kev tsim qauv zoo nkauj dua thiab cov ntsiab lus zoo dua hauv cov khoom siv ceramic, nthuav dav rau cov ntaub ntawv muaj tswv yim thiab nyuaj.
6. Txo lub sij hawm ziab
CMC kuj tseem tuaj yeem pab txo qis lub sijhawm ziab rau lub cev ceramic. Los ntawm optimizing cov ntsiab lus dej thiab kev faib tawm hauv cov khoom siv ceramic, CMC ua kom yooj yim dua thiab ntau dua kom qhuav. Qhov kev txo qis hauv lub sij hawm ziab tuaj yeem ua rau muaj kev tsim khoom ntau dua thiab txo qis kev siv hluav taws xob, muab cov nqi txuag thiab cov txiaj ntsig ib puag ncig.
7. Txhim kho nto tiav
Kev siv cov ceramic qib CMC tuaj yeem ua rau lub ntsej muag du thiab ua kom zoo dua qub ntawm cov khoom siv ceramic kawg. CMC pab ua kom tiav qhov sib xws thiab tsis muaj qhov tsis xws luag, uas yog qhov tseem ceeb tshwj xeeb rau cov ceramics uas yuav tsum tau ua kom tiav zoo, xws li cov vuas thiab cov khoom siv huv. Kev ua kom zoo dua saum npoo tsis tsuas yog txhim kho qhov zoo nkauj tab sis kuj txhim kho kev ua haujlwm thiab ua haujlwm ntev ntawm cov ceramics.
8. Compatibility nrog lwm yam additives
Ceramic qib CMC yog sib xws nrog ntau yam ntawm lwm yam additives siv nyob rau hauv ceramic formulations. Qhov kev sib raug zoo no tso cai rau kev tsim cov kev sib xyaw ua ke uas tuaj yeem ua tau raws li cov kev cai tshwj xeeb rau kev siv ceramic sib txawv. Txawm hais tias ua ke nrog deflocculants, plasticizers, lossis lwm yam binders, CMC ua haujlwm sib koom ua ke los txhim kho tag nrho cov kev ua tau zoo ntawm cov khoom siv ceramic.
9. Ib puag ncig phooj ywg
CMC yog muab los ntawm ntuj cellulose, ua rau nws ib puag ncig tus phooj ywg additive. Nws yog biodegradable thiab tsis muaj tshuaj lom, ua raws li qhov kev thov loj hlob rau cov khoom siv ruaj khov thiab eco hauv cov txheej txheem kev lag luam. Kev siv CMC hauv ceramics pab cov tuam txhab ua kom tau raws li cov kev cai ib puag ncig thiab txo cov hneev taw ecological ntawm lawv cov txheej txheem tsim khoom.
10. Nqi-zoo
Ntxiv rau nws cov txiaj ntsig kev lag luam, ceramic qib CMC yog tus nqi zoo. Nws muab ntau yam kev ua haujlwm zoo uas tuaj yeem ua rau muaj txiaj ntsig zoo hauv kev tsim khoom. Cov kev txuag no yog los ntawm kev txo cov pov tseg, kev siv hluav taws xob qis dua, txhim kho kev tsim khoom, thiab txhim kho cov khoom zoo. Tag nrho cov nqi-zoo ntawm CMC ua rau nws yog ib qho kev xaiv txaus nyiam rau cov tuam txhab ceramic tab tom nrhiav kev txhim kho lawv cov txheej txheem tsim khoom thiab txo cov nuj nqis.
Kev siv cov ceramic qib carboxymethyl cellulose (CMC) hauv kev lag luam ceramics muaj ntau cov txiaj ntsig, xws li kev txhim kho rheological zog thiab khi lub zog kom zoo dua ncua kev ruaj ntseg thiab tswj dej tuav. Cov txiaj ntsig zoo no pab txhawb kev ua haujlwm tau zoo, txo lub sijhawm ziab, thiab ua kom zoo tshaj plaws hauv cov khoom siv ceramic. Tsis tas li ntawd, kev sib raug zoo ntawm CMC nrog rau lwm cov khoom siv ntxiv, nws cov phooj ywg ib puag ncig, thiab kev siv nyiaj txiag ntxiv txhawb nqa nws cov nqi hauv kev tsim khoom ceramic. Los ntawm kev sib koom ua ke ceramic qib CMC, cov tuam ntxhab tuaj yeem ua tiav cov khoom lag luam zoo dua, ua kom muaj txiaj ntsig zoo dua, thiab kev ruaj khov dua hauv lawv cov txheej txheem ntau lawm.
Post lub sij hawm: Jun-04-2024