Kev siv CMC hauv Ceramic Glaze

Ceramic glaze yog iav txheej uas yog siv rau cov ceramics kom lawv zoo nkauj dua, ruaj, thiab ua haujlwm. Cov chemistry ntawm ceramic glaze yog complex, thiab nws yuav tsum tau tswj meej ntawm ntau yam tsis tau txais cov khoom xav tau. Ib qho ntawm qhov tseem ceeb tsis yog CMC, lossis qhov tseem ceeb micelle concentration, uas ua lub luag haujlwm tseem ceeb hauv kev tsim thiab ruaj khov ntawm glaze.

CMC yog qhov concentration ntawm surfactants uas tsim cov micelles pib tshwm sim. Lub micelle yog ib qho qauv uas tsim thaum cov molecules surfactant sib sau ua ke hauv kev daws teeb meem, tsim cov qauv kheej kheej nrog cov tails hydrophobic hauv nruab nrab thiab cov taub hau hydrophilic ntawm qhov chaw. Nyob rau hauv ceramic glaze, cov surfactants ua raws li dispersants uas tiv thaiv qhov chaw ntawm cov khoom thiab txhawb kev tsim ntawm ib tug ruaj khov ncua kev kawm ntawv. CMC ntawm surfactant txiav txim siab tus nqi ntawm cov surfactant yuav tsum tau tswj kom muaj kev ncua ruaj khov, uas cuam tshuam rau qhov zoo ntawm glaze.

Ib qho ntawm cov kev siv ntau tshaj plaws ntawm CMC hauv ceramic glaze yog ib qho dispersant rau ceramic hais. Ceramic particles muaj ib tug nyiam nyob rau hauv sai sai, uas yuav ua rau kom tsis ncaj ncees faib thiab tsis zoo nto. Dispersants pab tiv thaiv kev daws teeb meem los ntawm kev tsim kom muaj lub zog quab yuam ntawm cov khoom, uas ua rau lawv raug tshem tawm hauv glaze. CMC ntawm dispersant txiav txim siab qhov tsawg kawg nkaus concentration yuav tsum tau ua kom tau zoo dispersion. Yog hais tias qhov concentration ntawm dispersant tsawg dhau, cov khoom yuav nyob, thiab glaze yuav tsis sib xws. Ntawm qhov tod tes, yog tias qhov concentration siab dhau lawm, nws tuaj yeem ua rau glaze tsis ruaj khov thiab sib cais rau hauv txheej.

Lwm qhov tseem ceeb ntawm daim ntawv thovCMC nyob rau hauv ceramic glazeyog raws li kev hloov kho rheology. Rheology yog hais txog kev kawm txog kev ntws ntawm cov teeb meem, thiab hauv ceramic glaze, nws yog hais txog txoj kev glaze ntws thiab nyob ntawm lub ceramic nto. Lub rheology ntawm glaze yog cuam tshuam los ntawm ntau yam, nrog rau cov particle loj tis, lub viscosity ntawm ncua kev kawm ntawv nruab nrab, thiab cov concentration thiab hom dispersant. CMC tuaj yeem siv los hloov kho rheology ntawm glaze los ntawm kev hloov cov viscosity thiab ntws zog. Piv txwv li, lub siab CMC dispersant tuaj yeem tsim cov kua nplaum ntau dua uas ntws zoo thiab sib npaug ntawm qhov chaw, thaum lub CMC qis qis tuaj yeem tsim cov glaze tuab uas tsis ntws yooj yim.

CMC tseem tuaj yeem siv los tswj kev ziab thiab tua cov khoom ntawm ceramic glaze. Thaum lub glaze yog siv rau ntawm ceramic nto, nws yuav tsum qhuav ua ntej nws yuav raug rho tawm haujlwm. Cov txheej txheem ziab tuaj yeem cuam tshuam los ntawm ntau yam, suav nrog qhov kub thiab av noo ntawm ib puag ncig, lub thickness ntawm glaze txheej, thiab muaj surfactants. CMC tuaj yeem siv los hloov kho cov khoom kom qhuav ntawm glaze los ntawm kev hloov qhov nro thiab viscosity ntawm qhov nruab nrab ncua. Qhov no tuaj yeem pab tiv thaiv kev tawg, warping, thiab lwm yam tsis xws luag uas tuaj yeem tshwm sim thaum lub sijhawm ziab.

Ntxiv nrog rau nws lub luag haujlwm ua tus hloov pauv thiab hloov kho rheology, CMC kuj tseem tuaj yeem siv los ua cov ntawv khi hauv ceramic glaze. Binders yog cov ntaub ntawv uas tuav cov glaze hais ua ke thiab txhawb nqa adhesion rau ceramic nto. CMC tuaj yeem ua raws li kev sib khi los ntawm kev tsim cov yeeb yaj kiab nyias ntawm cov khoom siv ceramic, uas pab tuav lawv ua ke thiab txhawb kev ua kom adhesion. Tus nqi ntawm CMC yuav tsum tau ua ib daim ntawv khij nyob ntawm ntau yam, suav nrog qhov loj me thiab cov duab, qhov sib xyaw ntawm glaze, thiab qhov kub thiab txias.

Hauv kev xaus, qhov tseem ceeb micelle concentration (CMC) ua lub luag haujlwm tseem ceeb hauv kev tsim cov ceramic glaze.