Kodi sodium Carboxymethyl cellulose ndi chiyani?

Carboxymethylcellulose (CMC) ndi mankhwala osinthika komanso ogwiritsidwa ntchito kwambiri omwe amapezeka m'mafakitale osiyanasiyana chifukwa cha mawonekedwe ake apadera. Polima iyi imachokera ku cellulose, polima wachilengedwe wopezeka m'makoma a cell a zomera. Carboxymethylcellulose amapangidwa ndi kusintha kwa mankhwala a cellulose poyambitsa magulu a carboxymethyl, omwe amawonjezera kusungunuka kwake m'madzi ndi kukhuthala kwake.

Mapangidwe a Mamolekyulu ndi Kaphatikizidwe

Carboxymethylcellulose imakhala ndi maunyolo a cellulose okhala ndi magulu a carboxymethyl (-CH2-COOH) omwe amamangiriridwa kumagulu ena a hydroxyl pamagulu a shuga. Kaphatikizidwe ka CMC kumakhudza momwe cellulose imayendera ndi chloroacetic acid, zomwe zimapangitsa kuti maatomu a haidrojeni alowe m'malo mwa cellulose ndi magulu a carboxymethyl. Digiri ya substitution (DS), yomwe imasonyeza kuchuluka kwa magulu a carboxymethyl pamtundu wa shuga, imakhudza makhalidwe a CMC.

Zakuthupi ndi Zamankhwala

1. Kusungunuka: Chimodzi mwazinthu zodziwika bwino za CMC ndi kusungunuka kwake m'madzi, kupangitsa kuti ikhale yothandiza yokhuthala munjira zamadzi. Kuchuluka kwa m'malo kumakhudza kusungunuka, ndi DS yapamwamba yomwe imatsogolera kusungunuka kwamadzi.
2. Viscosity: Carboxymethylcellulose amayamikiridwa chifukwa cha kuthekera kwake kukulitsa kukhuthala kwa zakumwa. Izi zimapangitsa kukhala chinthu chodziwika bwino muzinthu zosiyanasiyana, monga zakudya, mankhwala, ndi zinthu zosamalira anthu.
3. Katundu Wopanga Mafilimu: CMC imatha kupanga mafilimu ikauma, zomwe zimathandizira kuti zigwiritsidwe ntchito m'mafakitale pomwe zokutira zoonda komanso zosinthika zimafunikira.
4. Kusinthana kwa Ion: CMC ili ndi katundu wosinthanitsa ndi ion, kuilola kuti igwirizane ndi ma ion muyankho. Katunduyu nthawi zambiri amagwiritsidwa ntchito m'mafakitale monga kubowola mafuta komanso kuthira madzi oyipa.
5. Kukhazikika: CMC ndi yokhazikika pansi pamitundu yosiyanasiyana ya pH, ndikuwonjezera kusinthasintha kwake pamagwiritsidwe osiyanasiyana.

Mapulogalamu

1. Makampani a Chakudya:

• Thickening Agent: CMC imagwiritsidwa ntchito ngati thickening muzakudya zosiyanasiyana, kuphatikiza sosi, mavalidwe, ndi mkaka.
• Stabilizer: Imakhazikika emulsions muzakudya, kupewa kupatukana.
• Texture Modifier: CMC imakulitsa mawonekedwe ndi kamvekedwe ka zinthu zina.

2. Mankhwala:

• Binder: CMC imagwiritsidwa ntchito ngati chomangira m'mapiritsi amankhwala, kuthandiza kugwirizanitsa zosakanizazo.
• Suspension Agent: Amagwiritsidwa ntchito mu mankhwala amadzimadzi kuti apewe kukhazikika kwa tinthu tating'onoting'ono.

3. Zosamalira Munthu:

• Viscosity Modifier: CMC imawonjezedwa ku zodzoladzola, ma shampoos, ndi mafuta odzola kuti asinthe makulidwe awo ndikuwongolera mawonekedwe awo.
• Stabilizer: Imakhazikika emulsions muzodzoladzola zodzikongoletsera.

4. Makampani a Papepala:

• Surface Sizing Agent: CMC imagwiritsidwa ntchito pamakampani opanga mapepala kukonza mawonekedwe a pepala, monga kusalala komanso kusindikiza.

5. Makampani Opangira Zovala:

• Sizing Agent: CMC imagwiritsidwa ntchito ku ulusi kuti ipititse patsogolo mawonekedwe awo oluka ndikuwonjezera mphamvu ya nsalu zomwe zatuluka.

6. Kubowola Mafuta:

• Fluid Loss Control Agent: CMC imagwiritsidwa ntchito pobowola madzi kuti asatayike, kuchepetsa chiopsezo cha kusakhazikika kwa chitsime.

7. Kusamalira Madzi Otayira:

• Flocculant: CMC imagwira ntchito ngati flocculant kuti iphatikize tinthu tating'onoting'ono tating'onoting'ono, ndikupangitsa kuti achotsedwe munjira zoyeretsera madzi oyipa.

Kuganizira Zachilengedwe

Carboxymethylcellulose nthawi zambiri imawonedwa ngati yotetezeka kuti igwiritsidwe ntchito zosiyanasiyana. Monga chochokera ku cellulose, imatha kuwonongeka, ndipo chilengedwe chake ndi chochepa. Komabe, ndikofunikira kuganizira momwe chilengedwe chimapangidwira komanso kugwiritsa ntchito kwake.

Mapeto

Carboxymethylcellulose ndi polima wosunthika komanso wamtengo wapatali wokhala ndi ntchito zambiri m'mafakitale osiyanasiyana. Kuphatikizika kwake kwapadera kwa zinthu, kuphatikiza kusungunuka kwamadzi, kuthekera kwakukula, komanso kukhazikika, kumapangitsa kuti ikhale yofunika kwambiri pazinthu zosiyanasiyana. Pamene mafakitale akupitilizabe kufunafuna mayankho okhazikika komanso ogwira mtima, ntchito ya carboxymethylcellulose ikuyenera kusinthika, ndipo kafukufuku wopitilira atha kuwulula zatsopano zogwiritsira ntchito polima wodabwitsayu.