Cellulose Binder-Carboxymethyl Cellulose (CMC)

Carboxymethyl cellulose (sodium carboxymethyl cellulose), xa mus rau CMC, yog cov polymer compound ntawm cov chaw ua hauj lwm dog dig. Nws yog qhov tsis muaj ntxhiab, cov tsis taus, tsis muaj tshuaj lom dej-soluble cellulose derivative. Cov tau txais cov orgulose binder yog ib hom cellulose ether, yog li nws lub npe puv nkaus yuav tsum yog sopium carboxymethyl cellulose, uas yog, CMC-NA.

Zoo li methyl cellulose, cellethyl cellulose tuaj yeem siv los ua surfactant rau cov ntaub ntawv refactory thiab raws li phau ntawv ib ntus rau refractory cov ntaub ntawv.

Sodium Carboxymethyl cellulose yog hluavtaws polyelectrolyte, yog li nws tuaj yeem siv los ua cov av nkos thiab cov khoom siv ua kom rov zoo ib ntus. Muaj cov txiaj ntsig nram qab no:

1. Carboxymethyl cellulose tuaj yeem adsorbed zoo nyob rau saum npoo ntawm cov lus, zoo infiltrated thiab hais tias siab-zog refractory tsis tuaj yeem tsim tau;

2. Txij li thaum Carboxymethyl cellulose yog anionic polymer electrolyte, thiab ua raws li cov khoom sib txuam, thiab ua kom zoo dua ntawm cov khoom lag luam thiab txo cov qauv kev tsim qauv;

3. Siv cov cellulose cellulose li binder, muaj tsis muaj cov hmoov tshauv tom qab hlawv, thiab muaj tsawg heev-melting cov ntaub ntawv, uas yuav tsis cuam tshuam rau qhov kev pabcuam kub ntawm cov khoom.

Khoom nta:
1. CMC yog xim dawb lossis daj daj ntsej muag, tsis muaj ntxhiab tsw, thiab cov tshuaj tsw qab, thiab cov tshuaj yooj yim los yog me ntsis alkaline. Nws tuaj yeem khaws cia rau lub sijhawm ntev uas tsis muaj kev cuam tshuam, thiab nws tseem ruaj khov nyob rau hauv qis kub thiab tshav ntuj. Txawm li cas los xij, vim kev hloov pauv sai sai, cov acidity thiab alkalinity ntawm kev daws yuav hloov. Nyob rau hauv cov cawv ntawm ultraviolet rays thiab cov kab mob me, nws tseem yuav ua rau cov kev daws teeb meem hydrolysis lossis oxidation ntawm kev daws teeb meem yuav txo qis, thiab txawm tias cov kev daws teeb meem yuav ua rau muaj kev cuam tshuam. Yog tias qhov kev daws teeb meem yuav tsum tau khaws cia rau lub sijhawm ntev, cov khoom khaws tseg uas haum, xws li formaldehyde, phenol, benzoic acid, thiab organic mercuracts tebchaw.
2. CMC yog tib yam li lwm cov polymer electrolytes. Thaum nws dissolves, nws yuav xub o, thiab cov lus yuav ua raws li ib leeg los ua ib pab neeg ua yeeb yaj kiab lossis viscose pab pawg, tab sis hais kom qeeb. Yog li ntawd, thaum npaj nws cov kev daws teeb meem aqueous, yog hais tias cov lus tuaj yeem sib txuam nrog cov khoom siv pov tseg ua ntej, kev sib cais tuaj yeem nce siab.
3. CMC yog hygroscopic. Qhov nruab nrab noo noo ntawm CMC nyob rau hauv cov huab cua nce nrog kev nce ntawm huab cua kub thiab tsawg nrog kev nce ntawm huab cua kub. Thaum qhov nruab nrab kub ntawm chav sov yog 80% -50%, qhov sib npaug noo noo yog siab dua 26%, thiab cov khoom noo tsawg dua 10%. Yog li, cov khoom ntim ntim khoom thiab ntim yuav tsum them sai sai rau cov dej noo-pov thawj.
4. Cov ntaub nplaum hlau hnyav xws li zinc, tooj liab, ua rau muaj nag lossis cov dej nag, tuaj yeem ua rau nag lossis daus, tuaj yeem ua rau muaj nag lossis daus
5. Organic lossis inorganic acids yuav tseem ua rau nag lossis daus hauv cov tshuaj ntawm cov khoom no. Cov nag lossis daus tshwm sim sib txawv txawv vim yog hom thiab concentration ntawm cov kua qaub. Feem ntau, nag lossis daus tshwm sim hauv qab PH 2.5, thiab nws tuaj yeem rov qab tau tom qab nruab nrab ntawm kev ntxiv alkali.
6. Salts xws li calcium, magnesium thiab rooj ntsev tsis muaj cov txiaj ntsig nag lossis daus, tab sis cuam tshuam rau kev txo qis ntawm viscosity.
7. CMC tau sib haum nrog lwm cov kualu-soluble ci, muag thiab cov resins.
8. Zaj duab xis kos los ntawm CMC yog raus hauv acetone, benzene, pinehanol, metyl acetate, metrene roj, thiab lwm yam. Tej zaum yuav hloov pauv tau 24 teev.