Uyini umehluko phakathi kwe-carboxymethylcellulose ne-methylcellulose

I-Carboxymethylcellulose (CMC) kanye ne-methylcellulose (MC) zombili ziyizinto ezivela ku-cellulose, i-polymer yemvelo etholakala ezindongeni zamaseli ezitshalo. Lezi zinto ezivela ku-derivatives zisetshenziswa kakhulu ezimbonini ezahlukene ngenxa yezakhiwo zazo ezihlukile. Naphezu kokwabelana ngokufana, i-CMC kanye ne-MC zinemehluko ohlukile ezakhiweni zazo zamakhemikhali, izakhiwo, izinhlelo zokusebenza, kanye nokusetshenziswa kwezimboni.

1. Isakhiwo Samakhemikhali:

I-Carboxymethylcellulose (CMC):
I-CMC yenziwa ngokushintshaniswa kwe-cellulose nge-chloroacetic acid, okuholela ekufakweni kwamaqembu e-hydroxyl (-OH) emgogodleni we-cellulose ngamaqembu e-carboxymethyl (-CH2COOH).
Izinga lokushintshaniswa (DS) ku-CMC libhekisela enanini elimaphakathi lamaqembu e-carboxymethyl ngeyunithi ngayinye ye-glucose ku-cellulose chain. Le pharamitha inquma izakhiwo ze-CMC, okuhlanganisa ukuncibilika, i-viscosity, kanye nokuziphatha kwe-rheological.

I-Methylcellulose (MC):
I-MC ikhiqizwa ngokufakwa kwamaqembu e-hydroxyl ku-cellulose namaqembu e-methyl (-CH3) ngokusebenzisa i-etherification.
Ngokufanayo ne-CMC, izakhiwo ze-MC zithonywa izinga lokushintshana, okunquma ubukhulu be-methylation ku-cellulose chain.

2. Ukuncibilika:

I-Carboxymethylcellulose (CMC):
I-CMC iyancibilika emanzini futhi yakha izixazululo ezicacile neziqinile.
Ukuncibilika kwayo kuncike ku-pH, futhi ukuncibilika kwayo kuphezulu ezimweni ze-alkaline.

I-Methylcellulose (MC):
I-MC nayo iyancibilika emanzini, kodwa ukuncibilika kwayo kuncike ekushiseni.
Uma incibilikiswa emanzini abandayo, i-MC yakha ijeli, elincibilika ngokuguquguqukayo lapho lifudunyezwa. Lesi sici siyenza ifaneleke ukusetshenziswa okudinga i-gel elawulwayo.

3. Ukuqina:

I-CMC:
Ibonisa ukujiya okuphezulu ezixazululweni zamanzi, okufaka isandla ezimpahleni zayo zokujiya.
Ukuqina kwayo kungashintshwa ngokushintsha izici ezifana nokuhlushwa, izinga lokushintshana, kanye ne-pH.

I-MC:
Ibonisa ukuziphatha kwe-viscosity okufana ne-CMC kodwa ngokuvamile ayiqinile kangako.
Ukuqina kwezixazululo ze-MC kungalawulwa ngokushintsha amapharamitha afana nokushisa kanye nokuhlushwa.

4. Ukwakhiwa Kwamafilimu:

I-CMC:
Yakha amafilimu acacile, aguquguqukayo uma ekhishwa ezixazululweni zayo zamanzi.
La mafilimu athola ukusetshenziswa ezimbonini ezifana nokupakisha ukudla kanye nemithi.

I-MC:
Futhi iyakwazi ukwenza amafilimu kodwa ivame ukuba buthakathaka kakhulu uma iqhathaniswa namafilimu e-CMC.

5. Imboni Yokudla:

I-CMC:
Isetshenziswa kabanzi njengesiqinisi, isiqinisi, kanye nesixubisi emikhiqizweni yokudla efana ne-ayisikhilimu, amasoso, kanye nezigqoko.
Ikhono layo lokushintsha ukuthungwa kanye nokuzwakala komlomo kwezinto zokudla lenza libe yigugu ekwakhiweni kokudla.

I-MC:
Isetshenziswa ngezinjongo ezifanayo ne-CMC emikhiqizweni yokudla, ikakhulukazi ekusetshenzisweni okudinga ukwakheka kwejeli kanye nokuzinza.

6. Imithi:

I-CMC:
Isetshenziswa ekwakhiweni kwemithi njengesihlanganisi, isihlukanisi, kanye nesiguquli se-viscosity ekukhiqizweni kwamaphilisi.
Iphinde isetshenziswe ekwakhiweni kwangaphandle okufana nokhilimu nama-gel ngenxa yezakhiwo zayo ze-rheological.

I-MC:
Ivame ukusetshenziswa njengesithako sokujiya kanye ne-ejenti yokugaya emithini yemithi, ikakhulukazi emithini yoketshezi ephuzwayo kanye nezixazululo zamehlo.

7. Imikhiqizo Yokunakekelwa Komuntu Siqu:

I-CMC:
Kutholakala ezintweni ezahlukene zokunakekelwa komuntu siqu njenge-toothpaste, i-shampoo, kanye ne-lotion njenge-stabilizer kanye ne-ejenti yokuqina.

I-MC:
Isetshenziswa ezinhlotsheni ezifanayo njenge-CMC, inegalelo ekubunjweni nasekuzinzeni kwezindlela zokunakekelwa komuntu siqu.

8. Izicelo Zezimboni:

I-CMC:
Iqashwe ezimbonini ezifana nezindwangu, iphepha, kanye nobumba ngenxa yekhono layo lokusebenza njenge-binder, i-rheology modifier, kanye ne-ejenti yokugcina amanzi.

I-MC:
Ithola ukusetshenziswa ezintweni zokwakha, opende, kanye nezinamathelisi ngenxa yezakhiwo zayo zokuqina nokubopha.

kuyilapho i-carboxymethylcellulose (CMC) kanye ne-methylcellulose (MC) zombili ziyi-cellulose derivatives ezinezicelo ezahlukahlukene zezimboni, zibonisa umehluko ezakhiweni zazo zamakhemikhali, ukuziphatha kokuncibilika, amaphrofayili e-viscosity, kanye nezicelo. Ukuqonda lokhu kwahlukana kubalulekile ekukhetheni i-derivative efanele yokusetshenziswa okuthile ezimbonini ezahlukahlukene, kusukela ekudleni nasemithini kuya ekunakekelweni komuntu siqu kanye nezicelo zezimboni. Kungakhathaliseki ukuthi kunesidingo se-thickener ezwela i-pH njenge-CMC emikhiqizweni yokudla noma i-ejenti ye-gelling ephendula ekushiseni njenge-MC ekwakhiweni kwemithi, i-derivative ngayinye inikeza izinzuzo ezihlukile ezenzelwe izidingo ezithile emikhakheni ehlukene.