I-sodium carboxymethyl cellulose (CMC) idlala izindima ezimbalwa ezibalulekile ekukhiqizeni izitsha zobumba, ikakhulukazi ekucubunguleni nasekubunjweni kwe-ceramic. Nansi indlela i-CMC esetshenziswa ngayo ezigabeni ezahlukahlukene zokukhiqiza izitsha zobumba:

1. Isibopho Emizimbeni Yobumba: I-CMC ivamise ukusetshenziswa njengesibopho emizimbeni yobumba noma ekwenziweni kwe-greenware. Izimpushana zobumba, njengobumba noma i-alumina, zixutshwa namanzi kanye ne-CMC ukuze zakhe insa yepulasitiki engalolongwa noma ibunjwe ibe amafomu afiswayo, njengamathayela, izitini, noma izitsha zobumba. I-CMC isebenza njengesibophezelo sesikhashana, ibambe izinhlayiya ze-ceramic ndawonye phakathi nezigaba zokubumba nokomisa. Ihlinzeka ngokuhlangana kanye nepulasitiki kunqwaba ye-ceramic, okuvumela ukuphatha kalula kanye nokwakheka kobunjwa obuyinkimbinkimbi.
2. I-Plasticizer kanye ne-Rheology Modifier: I-CMC isebenza njenge-plasticizer ne-rheology modifier kuma-ceramic slurries noma iziliphu ezisetshenziselwa ukusakaza, ukuslip cast, noma izinqubo zokukhipha. I-CMC ithuthukisa izakhiwo zokugeleza nokusebenza kokumiswa kwe-ceramic, inciphisa i-viscosity futhi ithuthukise uketshezi. Lokhu kusiza ukubunjwa noma ukubunjwa kwezithako zobumba zibe yisikhunta noma ziyafa, kuqinisekisa ukugcwaliswa okufanayo kanye nokukhubazeka okuncane emikhiqizweni yokugcina. I-CMC iphinde ivimbele ukucwiliswa kwe-sedimentation noma ukulungiswa kwezinhlayiya ze-ceramic ekumisweni, ukugcina ukuzinza kanye ne-homogeneity ngesikhathi sokucubungula.
3. I-Deflocculant: Ekucutshungulweni kwe-ceramic, i-CMC isebenza njenge-deflocculant ukuze ihlakaze futhi izinze izinhlayiya ze-ceramic ekumisweni okumanzi. Ama-molecule e-CMC akhangisa phezu kwezinhlayiya ze-ceramic, axoshana futhi avimbele ukuhlangana noma ukugeleza. Lokhu kuholela ekuhlakazweni okuthuthukisiwe nokuzinza kokumiswa, okuvumela ukusatshalaliswa okufanayo kwezinhlayiya ze-ceramic kuma-slurries noma ama-casting slips. Ukumiswa kwe-deflocculated kukhombisa uketshezi olungcono, i-viscosity encishisiwe, nokusebenza okuthuthukisiwe kokulingisa, okuholela ezitsheni zobumba zekhwalithi ephezulu ezinama-microstructures afanayo.
4. I-Binder Burnout Agent: Ngesikhathi sokudubula noma ukucwiliswa kwe-ceramic greenware, i-CMC isebenza njenge-binder burnout agent. I-CMC iqala ukubola okushisayo noma i-pyrolysis emazingeni okushisa aphakeme, ishiya izinsalela zekhabhoni ezisiza ukususwa kwezibophezelo zezinto eziphilayo emizimbeni yobumba. Le nqubo, eyaziwa ngokuthi ukushiswa kwe-binder noma ukubopha, iqeda izakhi ze-organic kusukela ku-ceramics eluhlaza, ivimbela ukukhubazeka okufana nokuqhekeka, i-warping, noma i-porosity ngesikhathi sokudubula. Izinsalela ze-CMC ziphinde zibe nomthelela ekwakhekeni kwezimbotshana kanye nokuvela kwegesi, zikhuthaze ukuminyana kanye nokuhlanganiswa kwezinto zobumba ngesikhathi sokucwiliswa.
5. Ukulawulwa Kwe-Porosity: I-CMC ingasetshenziselwa ukulawula ukuqina kanye ne-microstructure ye-ceramics ngokuthonya i-kinetics yokomisa kanye nokuziphatha kokuncipha kwe-greenware. Ngokulungisa ukugcwala kwe-CMC ekumisweni kwe-ceramic, abakhiqizi bangakwazi ukulungisa izinga lokumisa kanye nezinga lokushwabana kwezitsha zobumba eziluhlaza, bathuthukise ukusatshalaliswa kwama-pore kanye nokuminyana emikhiqizweni yokugcina. I-porosity elawulwayo ibalulekile ukuze kuzuzwe izakhiwo ezifiselekayo zokuwalungisa, ezishisayo, nezikagesi kuma-ceramics ukuze kusetshenziswe izinto ezithile, njengolwelwesi lokuhlunga, izisekelo ze-catalyst, noma ukufakwa kwe-thermal.

I-sodium carboxymethyl cellulose (CMC) idlala indima ebalulekile ekwenziweni kwezitsha zobumba ngokusebenza njenge-binder, i-plasticizer, i-deflocculant, i-binder burnout agent, kanye ne-ejenti yokulawula i-porosity. Izakhiwo zayo eziguquguqukayo zinomthelela ekucutshungulweni, ekubunjweni, kanye nekhwalithi yezitsha zobumba, okuvumela ukukhiqizwa kwemikhiqizo ye-ceramic esebenza kahle enezakhiwo eziklanyelwe izinhlelo zokusebenza ezihlukahlukene zezimboni.