Muindasitiri yezvedongo,carboxymethyl cellulose (CMC), chinhu chinonyungudika mumvura chinobva mu cellulose yechisikigo. CMC yave chinhu chinodiwa pakugadzira ceramic green bodies nema glazes nekuda kwekukora kwayo kwakanaka, kubatana, kuchengetedza mvura, kumisa uye kugadzirisa rheological. Inovandudza kunaka kwepamusoro uye simba remuchina wezvigadzirwa zveceramic nekuvandudza rheological properties ye ceramic slurry uye green body forming properties, uye ine kukosha kwakakosha kwehupfumi nehunyanzvi.
1. Hunhu hwekutanga hweCMC
Carboxymethyl cellulose ipolymer inonyungudika mumvura inogadzirwa nekuisa mapoka ecarboxymethyl (–CH₂–COOH) mu cellulose yechisikigo kuburikidza ne etherification reaction. Hunhu hwayo hukuru hunosanganisira:
Kunyungudika kwakanaka: Inogona kunyungudika nekukurumidza mumvura inotonhora neinodziya kuti igadzire mhinduro inoonekera ye colloidal ine viscosity high-viscosity.
Kugokora uye kugadzirisa rheological: CMC solution ine viscosity yakakura uye inogona kugadzirisa thixotropy ye ceramic slurry ne glaze, kuitira kuti irambe iine kugadzikana kwakati kana yakamira uye inowedzera kuyerera kana simba rakamutswa kana kuchekwa richishandiswa.
Kuchengetwa kwemvura uye kugadzikana: CMC inogona kuderedza zvinobudirira kudonha kwemvura mumatope negirazi, kuvandudza kugadzikana, uye kudzivirira kupatsanurwa kana kupwanywa kwevhu.
Kuchengetedzeka nekuchengetedzwa kwezvakatipoteredza: Yakabva mu cellulose yechisikigo, inogona kuora uye yakachengeteka kushandisa.
2. Basa guru reCMC mukugadzirwa kwezvedongo
2.1. Semuchina wekuparadzanisa madhaka uye unogokora
Mukugadzirira midziyo ye ceramic green bodies, CMC inogona kuvandudza zvakanyanya kuyerera uye hunhu hwekumisikidzwa kwematope. Nekuwedzera viscosity uye thixotropy yematope, CMC inobatsira kuparadzira zvidimbu zve ceramic zvakaenzana, kudzivirira kunaya kwemvura, uye kuita kuti zvive nyore kukanda, kupfapfaidza granulation kana kupinza injection, nokudaro zvichivandudza huwandu uye kufanana kwemuviri we green.
2.2. Semubatsiri wekuumba uye wekubatanidza
Munguva yekudzvanya kana kuburitsa zvinhu, CMC inogona kuwedzera simba rekubatanidza zvinhu zvegirini, zvichiita kuti zvive nyore kuburitsa zvinhu uye zvisatsemuke. Hunhu hwayo hwakanaka hwekubatanidza zvinhu hunogonawo kusunga zvinhu zveceramic zvakasimba panguva yekuomesa, kuvandudza simba rakaoma regirini, uye kuderedza kurasikirwa panguva yekuumba zvinhu.
2.3. Kuvandudza mashandiro egirazi
Mukugadzirira maglaze, CMC inogona kuvandudza zvakanyanya kugadzikana kwe glaze slurry, kudzivirira kudonha kwemvura uye kuungana kwemvura. Pamusoro pezvo, CMC inogadzirisa thixotropy ye glaze slurry, inoita kuti maglaze aite zvakafanana, inoderedza kudzika kwemvura, uye inovandudza kupenya kwe glaze layer.
2.4. Kuchengetwa kwemvura uye kuramba kutsemuka
CMC inogona kuvharira hunyoro mutsvina negirazi, kunonotsa mwero wekuoma, uye kuderedza njodzi yekutsemuka nekukombama pamusoro pemuviri. Izvi zvakakosha zvikuru kune zvigadzirwa zveceramic zvakakura kana zvakatetepa, izvo zvinobatsira kuvandudza mwero wekukodzera kwechigadzirwa.
2.5. Kuvandudza kunaka kwechigadzirwa
Nekuvandudza kupararira kwezvikamu zvemuviri uye kufanana kwemagirazi, CMC inoita kuti pamusoro pezvigadzirwa zveceramic zvakapiswa pave panyoro uye panyoro, ukuwo ichideredza kuitika kwezvikanganiso zvakaita semaburi emapini nemabhurumu.
3. Kushandiswa kweCMC mumaitiro akasiyana ezvedongo
Zviumbwa zvezuva nezuva: zvinovandudza kuyerera kwetsvina uye simba remuviri, uye zvinoderedza kucheneruka uye kutsemuka panguva yekuomesa nekupfura.
Kuvaka zviumbwa zveceramic (ma ceramic tiles, madziro, madziro tiles): Kuvandudza kufanana kwema glazing uye kunaka kwe glazing, uye kuwedzera mwero wegoho.
Zviumbwa zvesimbi zvakakosha: Mukugadzira zviumbwa zvesimbi zvemhando yepamusoro zvakaita sezviumbwa zvemagetsi nezviumbwa zvinoshanda, CMC inoshandiswa kudzora kupararira kwezvimedu uye kuwedzera simba regirini.
Kudhinda kweCeramic 3D: Semutongi we rheological uye binder, kunobatsira kuwana slurry viscosity yakakodzera uye kuprinta kwakarurama.
4. Zvinhu zvinokanganisa mashandiro eCMC
Dhigirii rekutsiva (DS): Dhigirii rekutsiva carboxymethyl pamamorekuru eCMC rinowanzova pakati pe0.6–1.2. Kana DS yakakwira, CMC inonyungudika uye inokora mvura.
Kurema kwemamorekuru nekusimba: Kusimba kwakanyanya kwemvura (high viscosity) CMC inopa simba rekuchengetedza mvura nekusimba kwayo, asi inogona kukonzera kuti kuyerera kwemvura kuderera; giredhi rakakodzera rinofanira kusarudzwa zvichienderana nezvinodiwa nemaitiro acho.
Huwandu hwekuwedzera: Huwandu hwekuwedzera hweCMC mukugadzirwa kweceramic kwakajairika i0.1–0.5% yehuremu hweslurry, iyo inoda kugadziriswa kuburikidza nekuyedza.
Nzira yekunyungudika uye yekupararira: CMC inofanira kunyungudika zvizere nekukurunga zvakanyanya kutanga kudzivirira kuungana kuti iwane mhedzisiro yakanaka.
5. Mabhenefiti ezvakatipoteredza nehupfumi
CMC inotorwa kubva mu cellulose yechisikigo, ine kugona kuora uye kuchengetedzeka kwakanaka, uye inosangana nezvinodiwa zvekuchengetedza zvakatipoteredza zveindasitiri yemazuva ano yeceramic. Pamusoro pezvo, CMC inowedzera simba zvakanyanya inogona kuderedza kushandiswa kwesimba, kupfupisa nguva yekuomesa uye kuderedza mwero wezvimedu, nokudaro ichivandudza kushanda zvakanaka kwekugadzira uye mabhenefiti ehupfumi.
Muindasitiri yezvedongo,CMC (carboxymethyl cellulose) chinhu chinobatsira zvikuru pakugadzira. Inobatsira zvigadzirwa zveceramic kuwana mhando yepamusoro uye kushanda zvakanaka kwekugadzira nekuvandudza hunhu hwe rheological hwematope ne glaze, kuvandudza simba rekubatanidza uye simba rakaoma remuviri, uye kugadzirisa mhedzisiro ye glazing. Nekutsvaga kuri kuitwa neindasitiri ye ceramic kuchengetedza zvakatipoteredza zvakasvibira uye kugadzira kwepamusoro-soro, mikana yekushandiswa kweCMC ichave yakakura.
Nguva yekutumira: Chikunguru-28-2025