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Kushandiswa kweSodium Carboxymethyl Cellulose (CMC) muCeramics

Sodium carboxymethyl cellulose, Chirungu chipfupiso CMC, chinowanzozivikanwa se "methyl" muindasitiri yeceramic, chinhu anionic, chena kana zvishoma yero poda yakagadzirwa neakasikwa cellulose seyakagadzirwa uye yakagadziridzwa makemikari. . CMC ine yakanaka solubility uye inogona kunyungudika kuita yakajeka uye yakafanana viscous mhinduro mumvura inotonhora uye inopisa mvura.

1. Sumo pfupi yekushandiswa kweCMC mumakeramiki

1.1. Kushandiswa kweCMC mune ceramics

1.1.1, nheyo yekushandisa

CMC ine yakasarudzika mutsara polymer chimiro. Kana CMC yawedzerwa kumvura, iyo hydrophilic boka (-COONA) inosanganiswa nemvura kuti iite solvation layer, kuitira kuti CMC mamorekuru anoparadzirwa zvishoma nezvishoma mumvura. CMC ma polymers anovimba nehydrogen bond uye van der Waals mauto. Mhedzisiro inoumba chimiro chetiweki, nokudaro kuratidza kubatana. Iyo CMC-yakanangana nemuviri inogona kushandiswa sechinhu chinobatsira, plasticizer, uye inosimbisa mumiriri wegirinhi miviri muindasitiri yeceramic. Kuwedzera huwandu hwakakodzera hweCMC kune billet kunogona kuwedzera simba rakabatana rebhillet, kuita kuti billet rive nyore kuumba, kuwedzera simba rekushanduka-shanduka ne2 kusvika ku3 nguva, nekuvandudza kugadzikana kwebillet, nokudaro kuwedzera chigadzirwa chepamusoro. chiyero chekeramics uye kudzikisira mari yekumashure-kugadzirisa. . Panguva imwecheteyo, nekuda kwekuwedzera kweCMC, inogona kuwedzera yakasvibira muviri kugadzirisa kumhanya uye kuderedza kugadzira simba rekushandisa. Inogonawo kuita kuti hunyoro huri mubillet huputike zvakaenzana uye kudzivirira kuoma uye kuputika. Kunyanya kana ichiiswa kune yakakura-saizi pasi tile mabheti uye yakakwenenzverwa zvidhinha mabheti, mhedzisiro yacho inotova nani. pachena. Kuenzaniswa nemamwe girinhi yemuviri inosimbisa maajenti, yegirini muviri yakakosha CMC ine zvinotevera maitiro:

(1) Chikamu chidiki chekuwedzera: huwandu hwekuwedzera kazhinji hushoma pane 0.1%, inova 1/5 kusvika 1/3 yemamwe maajenti ekusimbisa muviri, uye kuchinjika kwesimba regirinhi remuviri rinovandudzwa zvakanyanya, uye mutengo unogona kuderedzwa. panguva imwe.

(2) Chigadzirwa chakanaka chekutsva: inenge isina madota anosara mushure mekupisa, uye hapana chakasara, chisingakanganisi ruvara rwechisina.

(3) Chigadzirwa chakanaka chekumisa: dzivirira zvinhu zvisingabereki uye namira yemavara kubva pakugadzika, uye ita kuti paste ipararire zvakaenzana.

(4) Anti-abrasion: Mukuita kwebhora kugaya, iyo molecular chain haina kukuvadzwa.

1.1.2, nzira yekuwedzera

Iyo yakawanda yekuwedzera huwandu hweCMC mubillet ndeye 0.03-0.3%, iyo inogona kugadziridzwa zvakakodzera zvinoenderana nezvinodiwa chaizvo. Kune madhaka ane akawanda asingabereki mbishi zvinhu mufomula, CMC inogona kuwedzerwa kune bhora guyo kukuya pamwe chete nedhaka, teerera kune yunifomu kupararira, kuti irege kunetsa kunyungudika mushure mekusangana, kana pre- nyungudutsa CMC nemvura pachiyero che1:30 Iwedzere kune bhora guyo uye sanganisa zvakaenzana 1-5 maawa pamberi pekugaya.

1.2. Kushandiswa kweCMC mune glaze slurry

1.2.1. Application musimboti

CMC ye glaze slurry inodzikamisa uye bhainda ine mashandiro akanaka. Inoshandiswa muzasi glaze uye kumusoro kupenya kwematairi e ceramic, iyo inogona kuwedzera simba rekubatanidza pakati pe glaze slurry nemuviri. Nekuti iyo glaze slurry iri nyore kudonha uye ine kusagadzikana kwakashata, CMC uye dzakasiyana-siyana Kuenderana kwerudzi urwu rwekupenya kwakanaka, uye ine yakanakisa kupararira uye inodzivirira colloid, kuitira kuti glaze iri munzvimbo yakagadzikana yekupararira. Mushure mekuwedzera CMC, kushushikana kwepasi kwe glaze kunogona kuwedzera, mvura inogona kudzivirirwa kubva pakupenya kuenda kune yakasvibira muviri, kutsvedzereka kwenzvimbo ye glaze kunogona kuwedzera, uye kuputika nekutsemuka panguva yekufambisa kunokonzerwa ne kuderera kwesimba remuviri wakasvibirira mushure mekupenya kunogona kudziviswa. , Iyo pinhole phenomenon pane glaze surface inogonawo kuderedzwa mushure mekupfura.

1.2.2. Kuwedzera nzira

Huwandu hweCMC hwakawedzerwa muzasi glaze uye pamusoro glaze kazhinji 0.08-0.30%, uye inogona kugadziriswa zvinoenderana nezvinodiwa chaizvo panguva yekushandisa. Chekutanga gadzira CMC kuita 3% ine aqueous solution. Kana ichida kuchengetwa kwemazuva akati wandei, mhinduro iyi inoda kuwedzerwa nehuwandu hwakakodzera hwekuchengetedza uye kuiswa mumudziyo wakavharwa, wakachengetwa pane yakaderera tembiricha, uye wozosanganiswa ne glaze zvakaenzana.

1.3. Kushandiswa kweCMC mukudhinda glaze

1.3.1. Iyo yakakosha CMC yekudhinda glaze ine yakanaka thickening, dispersibility uye kugadzikana. Iyi yakakosha CMC inotora tekinoroji nyowani, ine yakanaka solubility, yakakwira pachena, inenge isina chinhu chisinganyunguke, uye ine yakanakisa shear thinning midziyo Uye lubricity, inovandudza zvakanyanya kudhinda kuchinjika kwekudhinda glaze, kuderedza chiitiko chekunamatira uye kuvhara skrini, kuderedza nhamba. zvekupukuta, kudhinda kwakatsetseka panguva yekushanda, mapatani akajeka, uye kuenderana kwemavara.

1.3.2. Iyo yakawanda yekuwedzera huwandu hwekuwedzera kudhinda glaze ndeye 1.5-3%. CMC inogona kupinzwa ne ethylene glycol yobva yawedzera mvura kuti iite isati yanyungudika. Inogonawo kuwedzerwa ne 1-5% sodium tripolyphosphate uye zvinhu zvemavara pamwechete. Dry mix, uye wozonyunguduka nemvura, kuitira kuti marudzi ese ezvishandiso anogona kunyungudika zvakazara zvakafanana.

1.4. Kushandiswa kweCMC mukupenya glaze

1.4.1. Application musimboti

Bleeding glaze ine yakawanda yemunyu inonyungudika, uye mamwe acho ane acidic zvishoma. Iyo yakakosha mhando yeCMC yekubuda ropa glaze ine yakanakisa asidhi uye munyu kuramba kugadzikana, iyo inogona kuchengetedza viscosity yekubuda ropa glaze yakagadzikana panguva yekushandiswa nekuiswa, uye kudzivirira kuti isakuvadzwe nekuda kwekuchinja kweviscosity. Inokanganisa mutsauko weruvara, uye kunyungudika kwemvura, mesh permeability uye kuchengetwa kwemvura kweiyo yakakosha CMC yekubuda ropa glaze yakanaka kwazvo, iyo inobatsira zvikuru kuchengetedza kugadzikana kwekubuda ropa glaze.

1.4.2. Wedzera nzira

Dissolve CMC ine ethylene glycol, chikamu chemvura uye yakaoma agent kutanga, uye wozosanganisa neyakanyungudika colorant mhinduro.

2. Matambudziko anofanirwa kutariswa pakugadzirwa kweCMC mumakeramiki

2.1. Mhando dzakasiyana dzeCMC dzine mabasa akasiyana mukugadzirwa kweceramics. Kusarudzwa kwakarurama kunogona kuzadzisa chinangwa chehupfumi uye kushanda kwepamusoro.

2.2. Mukupenya kwepamusoro uye kudhinda kupenya, haufanirwe kushandisa yakaderera-kuchena CMC zvigadzirwa zvakachipa, kunyanya mukudhinda glaze, unofanirwa kusarudza yakakwirira-kuchena CMC nekuchena kwepamusoro, yakanaka acid uye munyu kuramba, uye kujeka kwepamusoro kudzivirira glaze Ripples uye pinholes. kuonekwa pamusoro. Panguva imwecheteyo, inogona zvakare kudzivirira chiitiko chekuvhara mambure, kusaenzana kwemazinga uye musiyano wemavara panguva yekushandiswa.

2.3. Kana tembiricha yakakwira kana glaze slurry ichida kuiswa kwenguva yakareba, zvinodzivirira zvinofanirwa kuwedzerwa.

3. Ongororo yezvinetso zvakajairika zveCMC mune ceramicproduction

3.1. Mvura yematope haina kunaka, uye zvakaoma kusunungura glue.

Nekuda kweiyo viscosity, CMC ichaita kuti dhaka viscosity iwedzere, zvichiita kuti zviome kuburitsa dhaka. Mhinduro ndeyekugadzirisa huwandu uye rudzi rwe coagulant. Iyo inotevera decoagulant formula inokurudzirwa: (1) sodium tripolyphosphate 0.3%; (2) sodium tripolyphosphate 0.1% + girazi remvura 0.3%; (3) humic acid Sodium 0.2% + sodium tripolyphosphate 0.1%

3.2. Iyo glaze slurry uye inki yekudhinda yakatetepa.

Zvikonzero nei glaze slurry uye inki yekudhinda yakatetepa ndeiyi inotevera: (1) Iyo glaze slurry kana printing inki inoparadzwa nema microorganisms, izvo zvinoita kuti CMC isashande. Mhinduro ndeyekunyatsosuka chigadziko che glaze slurry kana inki, kana kuwedzera zvinochengetedza zvakadai se formaldehyde uye phenol. (2) Pasi pekuenderera mberi kwekukurudzira pasi pesimba rekuveura, viscosity inoderera. Zvinokurudzirwa kuwedzera CMC aqueous mhinduro kugadzirisa paunenge uchishandisa.

3.3. Namira mambure paunenge uchishandisa kudhinda glaze.

Mhinduro ndeyekugadzirisa huwandu hweCMC kuitira kuti viscosity yekudhinda glaze ine mwero, uye kana zvichidiwa, wedzera mvura shoma kuti iwedzere zvakaenzana.

3.4. Pane nguva zhinji dzekuvharisa network nekuchenesa.

Mhinduro ndeyekuvandudza kujeka uye kunyungudika kweCMC; mushure mokunge mafuta ekudhinda agadzirwa, pfuura nepakati pe 120-mesh sieve, uye mafuta ekudhinda anodawo kudarika 100-120-mesh sieve; gadzirisa viscosity yekudhinda glaze.

3.5. Kuchengetedzwa kwemvura hakuna kunaka, uye pamusoro peruva rinoputika mushure mekudhinda, izvo zvichakanganisa kudhinda kunotevera.

Mhinduro ndeyokuwedzera huwandu hweglycerin mukudhinda mafuta ekugadzirira maitiro; shandisa yepakati uye yakaderera viscosity CMC ine yakakwirira kutsiva dhigirii (yakanaka kutsiva kufanana) kugadzira mafuta ekudhinda.


Nguva yekutumira: Jan-04-2023
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