Cov tshuaj txhuam hniav thickener sodium carboxymethyl cellulose (CMC)

Sodium carboxymethyl cellulose (CMC)yog ib qho tseem ceeb hauv dej-soluble cellulose ether, uas yog ib qho anionic polymer compound tau los ntawm alkalization thiab etherification ntawm cellulose. Ua ib tug thickener, stabilizer, emulsifier, zaj duab xis former thiab moisturizer nrog kev ua tau zoo heev, CMC muaj ntau yam kev siv tseem ceeb hauv kev lag luam tshuaj txhuam hniav.

1. Lub luag haujlwm tseem ceeb ntawm CMC hauv cov tshuaj txhuam hniav

1.1. Cov nyhuv ua kom tuab

Lub luag haujlwm tseem ceeb tshaj plaws ntawm CMC yog ua kom tuab. Cov kev cai yooj yim ntawm cov tshuaj txhuam hniav yog tias cov tshuaj txhuam hniav yuav tsum muaj qhov sib xws zoo, cov kua dej thiab thixotropy tsim nyog, yooj yim rau nias tawm ntawm lub raj tshuaj txhuam hniav, thiab tswj cov qauv tshuaj txhuam hniav thaum txhuam hniav, thiab tsis yooj yim poob. CMC tuaj yeem tsim cov tshuaj colloidal pob tshab thaum yaj hauv dej, uas tuaj yeem ua rau kom cov tshuaj txhuam hniav viscosity nce ntxiv thiab ua rau cov tshuaj txhuam hniav muaj qhov sib xws zoo thiab ruaj khov.

1.2. Ua kom cov qauv nplaum ruaj khov

Tshuaj txhuam hniav yog ib qho kev sib xyaw ua ke uas muaj ntau yam khoom sib xyaw (xws li cov khoom siv abrasives, surfactants, flavors, glycerin, dej, thiab lwm yam). CMC tuaj yeem ua lub luag haujlwm zoo hauv kev ncua thiab kev ruaj khov, ua rau cov khoom khov (xws li cov khoom siv abrasives) faib sib npaug hauv lub matrix, tiv thaiv kev faib ua pawg, kev sib cais thiab kev sib cais kua, thiab ua kom lub neej txee ntawm cov khoom ntev dua.

1.3. Txhim kho kev kov thiab kev sib kis tau yooj yim

Cov tshuaj CMC muaj qee qhov du thiab mos, uas tuaj yeem txhim kho qhov saj ntawm cov tshuaj txhuam hniav, ua rau nws du thaum siv, tsis ua rau khaus cov pos hniav, thiab txhim kho kev paub ntawm tus neeg siv. Tib lub sijhawm, CMC muaj qee yam khoom ua zaj duab xis, uas pab tsim cov zaj duab xis tiv thaiv thiab muaj cov nyhuv tiv thaiv zoo rau cov mucosa hauv qhov ncauj.

1.4. Kev tswj hwm kev tso tawm thiab cov nyhuv noo noo

Cov khoom xyaw nquag (xws li fluoride, cov tshuaj tiv thaiv kev ua xua, thiab lwm yam) raug ntxiv rau qee cov tshuaj txhuam hniav ua haujlwm. CMC tuaj yeem pab tswj lawv qhov kev tso tawm thiab txhim kho kev siv cov khoom xyaw nquag. Tsis tas li ntawd, CMC muaj peev xwm nqus tau cov dej noo thiab ua kom noo, uas pab tiv thaiv cov tshuaj txhuam hniav kom tsis txhob qhuav thiab tawg thiab txhim kho kev ruaj khov ntawm kev khaws cia.

2. Kev ua tau zoo ntawm CMC

2.1. Kev yaj dej tau zoo thiab muaj kev nyab xeeb

CMC tuaj yeem yaj sai hauv dej txias, yooj yim siv, tsis tas yuav ua kom sov, thiab ua tau raws li qhov yuav tsum tau ua sai ntawm kev lag luam tshuaj txhuam hniav. CMC yog cov khoom siv polymer hloov kho ntuj uas muaj kev sib raug zoo thiab kev nyab xeeb hauv qhov ncauj. Nws tsis muaj tshuaj lom thiab tsis ua rau khaus thiab yuav tsis ua rau muaj kev phiv rau tib neeg kev noj qab haus huv.

2.2. Muaj zog hloov kho viscosity

Cov khoom CMC muaj ntau yam qib viscosity (feem ntau yog 25 txog 8000mPa·s), uas tuaj yeem xaiv raws li qhov xav tau tshwj xeeb ntawm cov tshuaj txhuam hniav, pab txhawb kev tsim tus kheej ntawm cov qauv nplaum.

2.3. Kev sib raug zoo

CMC muaj kev sib raug zoo nrog lwm cov khoom siv feem ntau ntawm cov tshuaj txhuam hniav (xws li glycerin, sorbitol, tus neeg sawv cev ua npuas ncauj, abrasive, thiab lwm yam), thiab ua kom pom kev ua tau zoo ruaj khov hauv ntau lub tshuab sib txawv.

3. Kev ceev faj rau kev siv CMC

Thaum siv CMC hauv cov tshuaj txhuam hniav, cov ntsiab lus hauv qab no yuav tsum tau sau tseg:

Tswj qhov ntau ntxiv: Feem ntau qhov ntau ntxiv yog 0.5% txog 1.5%, nyob ntawm qhov yuav tsum tau ua kom cov khoom sib xws. Kev siv ntau dhau yuav ua rau cov nplaum tuab dhau thiab nyuaj rau extrude.

Txoj kev yaj kom raug: Yuav tsum maj mam ntxiv rau hauv dej thaum do kom tsis txhob muaj pob. Kuj tseem tuaj yeem sib xyaw nrog cov tshuaj ua kom ntub xws li glycerin ua ntej thiab tom qab ntawd ntxiv rau hauv dej kom yaj kom zoo dua qub.

Kev kuaj xyuas qhov sib xws ntawm cov mis: Nws yuav muaj cov kev tsis haum nrog qee cov cationic surfactants lossis cov ntsev inorganic uas muaj cov concentration siab, thiab yuav tsum tau ua qhov kev sim me me kom paub tseeb tias nws sib xws.

4. Kev loj hlob ntawm CMC hauv kev lag luam tshuaj txhuam hniav

Nrog rau tib neeg txoj kev saib xyuas rau kev noj qab haus huv ntawm qhov ncauj thiab kev txhim kho ntau yam ntawm cov tshuaj txhuam hniav ua haujlwm, qhov yuav tsum tau ua kom zoo dua ntawm cov khoom siv tshuaj txhuam hniav. Raws li cov khoom siv thickener ib txwm muaj thiab laus, CMC txoj haujlwm tseem ruaj khov. Txawm li cas los xij, txhawm rau kom ua tau raws li cov txheej txheem nyuaj dua thiab cov kev xav tau saj, kev lag luam kuj tseem tab tom tsim cov CMC hloov kho (xws li cross-linked, esterified, thiab lwm yam) lossis cov kab ke sib xyaw (xws li CMC nrog xanthan gum, guar gum, thiab lwm yam) los ua kom zoo dua qhov ua tau zoo ntawm cov tshuaj nplaum. Tsis tas li ntawd, kev nce ntawm cov khoom siv ntsuab, ntuj thiab tus phooj ywg ib puag ncig kuj tau thawb CMC kom txhim kho mus rau qhov kev coj ua ntawm kev ntshiab siab, tsis muaj impurities thiab tsawg residue ether.

Ua ib qho tseem ceeb thickening thiab stabilizing khoom xyaw hauvcov tshuaj txhuam hniav sodium carboxymethyl cellulose (CMC)tau siv dav hauv kev tsim cov tshuaj txhuam hniav thoob ntiaj teb vim nws cov khoom zoo heev thiab tshuaj lom neeg, kev nyab xeeb thiab kev lag luam. Yav tom ntej, nrog kev nce qib ntawm CMC cov thev naus laus zis tsim khoom thiab kev txhim kho tas mus li ntawm cov khoom siv tshuaj txhuam hniav, CMC yuav ua lub luag haujlwm tseem ceeb hauv kev txhim kho cov tshuaj txhuam hniav zoo thiab kev paub ntawm cov neeg siv.