Yintoni umahluko phakathi kwe-sodium CMC kunye ne-CMC?

I-Sodium carboxymethylcellulose (NaCMC) kunye ne-carboxymethylcellulose (CMC) zombini ziphuma kwi-cellulose, i-polymer yendalo efumaneka kwiindonga zeeseli zesityalo.Ezi khompawundi zinezicelo kumashishini ahlukeneyo, kubandakanya ukutya, amayeza, amalaphu, nokunye.

I-Sodium Carboxymethylcellulose (NaCMC):

1.Ulwakhiwo lwekhemikhali:

I-NaCMC ikhutshwe kwi-cellulose ngenkqubo yokuguqulwa kweekhemikhali.Amaqela e-Carboxymethyl (-CH2-COOH) angeniswa kwisakhiwo se-cellulose, kunye ne-sodium ions idibaniswa nala maqela.
Ityuwa yesodium yeCMC inika ukunyibilika kwamanzi kwipolymer.

2. Ukunyibilika:

I-NaCMC i-soluble emanzini kwaye yenza isisombululo se-viscous.Ubukho be-sodium ion bonyusa ukunyibilika kwayo emanzini xa kuthelekiswa neselulosi engalungiswanga.

3. Iimpawu kunye nemisebenzi:

Isebenza njenge-thickener, stabilizer kunye nearhente yokugcina amanzi kwiinkqubo ezahlukeneyo.
Ibonisa i-pseudoplastic okanye i-shear-thinning behavior, oku kuthetha ukuba i-viscosity yayo iyancipha phantsi koxinzelelo lwe-shear.

4. Isicelo:

Ishishini lokuTya: Isetyenziswa njenge-ejenti yokujiya kwiimveliso zokutya ezifana neesosi, i-ayisikrimu kunye nezinto ezibhakiweyo.

Pharmaceuticals: Isetyenziswaekuqulunqweni kweempawu zayo zokubopha kunye ne-viscosity-enhancing.

Ukugaya i-oyile: isetyenziselwa ukulawula i-viscosity kunye nokulahlekelwa kwamanzi kwi-drilling fluids.

5. Imveliso:

Ihlanganiswe ngokusabela kweselulosi kunye ne-sodium hydroxide kunye ne-monochloroacetic acid.

I-Carboxymethylcellulose (CMC):

1.Ulwakhiwo lwekhemikhali:

I-CMC ngengqiqo ebanzi ibhekisa kuhlobo lwe-carboxymethylated lweselulosi.Isenokuba okanye ingabikhoezinxulumene ion sodium.

Amaqela eCarboxymethyl angeniswa kwi-cellulose backbone.

2. Ukunyibilika:

I-CMC ingabakho ngeendlela ezininzi, kuquka ityuwa yesodium (NaCMC) kunye nezinye iityuwa ezifana ne-calcium CMC (CaCMC).

I-sodium ye-CMC yeyona ndlela ixhaphakileyo yokunyibilika kwamanzi, kodwa ngokuxhomekeke kwisicelo, i-CMC inokuguqulwa ukuba inganyibiliki kancinci emanzini.

3. Iimpawu kunye ne-functios:

Iyafana neNaCMC, CMI-C ixabiswa ngenxa yokuqina kwayo, ukuzinzisa, kunye neempawu zokugcina amanzi.

Ukhetho lweCMCpe (i-sodium, i-calcium, njl.) ixhomekeke kwiipropati ezifunwayo zemveliso yokugqibela.

4. Isicelo:

Isetyenziswa kakhulu kushishino lokutya, amayeza, impahla eluka, iiseramikhi kunye nokuveliswa kwephepha.

Ifomu eyahlukileyosyeCMC inokukhethwa ngokusekelwe kwiimfuno ezithile zesicelo.

5. Imveliso:

I-Carboxymethylation ye-cellulose inokubandakanya iimeko ezahlukeneyo zokusabela kunye nee-reagents, ezikhokelela ekubunjweni kweentlobo ezahlukeneyo ze-CMC.

Umahluko omkhulu phakathi kwe-sodium CMC kunye ne-CMC kubukho be-ion zesodium.I-Sodium CMC ibhekisa ngokukodwa kwityuwa yesodium ye-carboxymethyl cellulose, enyibilikayo kakhulu emanzini.I-CMC, kwelinye icala, ligama elibanzi elibandakanya iindlela ezahlukeneyo ze-carboxymethylated cellulose, kubandakanywa ne-sodium kunye nezinye iityuwa, nganye inesethi yayo yeepropati kunye nokusetyenziswa.Ukukhetha phakathi kwe-sodium CMC kunye ne-CMC kuxhomekeke kusetyenziso olujoliswe kuyo kunye neempawu ezifunwayo zemveliso yokugqibela.