Carboxymethyl selulose na sodium carboxymethyl selulose birasa?

Carboxymethyl selulose (CMC) na sodium carboxymethyl selulose (CMC-Na) ni ibintu bisanzwe mu nganda zikora imiti n’inganda zikora ibiryo. Bafite itandukaniro nisano muburyo, imikorere no gukoresha. Iyi ngingo izasesengura mu buryo burambuye imiterere, uburyo bwo gutegura, gusaba n'akamaro ka byombi mubice bitandukanye.

(1) Carboxymethyl selulose (CMC)

1. Ibintu shingiro
Carboxymethyl selulose (CMC) ni carboxymethylated ikomoka kuri selile kandi ni anionic umurongo wa polysaccharide. Imiterere yibanze ni uko amatsinda amwe ya hydroxyl (-OH) muri molekile ya selile asimbuzwa amatsinda ya carboxymethyl (-CH₂-COOH), bityo agahindura imitekerereze n'imikorere ya selile. Ubusanzwe CMC yera yera ifu yumuhondo gake, idafite impumuro nziza kandi itaryoshye, idashobora gushonga mumashanyarazi, ariko irashobora gukuramo amazi kugirango ikore gel.

2. Uburyo bwo kwitegura
Gutegura CMC mubisanzwe bikubiyemo intambwe zikurikira:
Alkalinisation reaction: Vanga selile na hydroxide ya sodium (NaOH) kugirango uhindure amatsinda ya hydroxyl muri selile mumunyu wa alkaline.
Etherification reaction: Selulose ya alkalize ikora na aside ya chloroacetike (ClCH₂COOH) kugirango itange carboxymethyl selulose na sodium chloride (NaCl).
Ubu buryo busanzwe bukorerwa mumazi cyangwa igisubizo cya Ethanol, kandi ubushyuhe bwa reaction bugenzurwa hagati ya 60 ℃ -80 ℃. Nyuma yo gukora reaction irangiye, ibicuruzwa bya nyuma bya CMC biboneka binyuze mu gukaraba, kuyungurura, kumisha nizindi ntambwe.

3. Imirima yo gusaba
CMC ikoreshwa cyane cyane mubiribwa, ubuvuzi, imyenda, gukora impapuro nizindi nzego. Ifite imirimo myinshi nko kubyimba, gutuza, gufata amazi no gukora firime. Kurugero, mubucuruzi bwibiribwa, CMC irashobora gukoreshwa nkibyimbye, stabilisateur na emulisiferi ya ice cream, jam, yogurt nibindi bicuruzwa; murwego rwa farumasi, CMC ikoreshwa nka binder, kubyimbye no guhagarika imiti; mu nganda zikora imyenda nogukora impapuro, CMC ikoreshwa nkibikoresho byongeweho kandi bingana nuburinganire kugirango hongerwe ubuziranenge n’umutekano wibicuruzwa.

(2) Sodium carboxymethyl selulose (CMC-Na)

1. Ibintu shingiro
Sodium carboxymethyl selulose (CMC-Na) nuburyo bwa sodium yumunyu wa carboxymethyl selulose. Ugereranije na CMC, CMC-Na ifite amazi meza. Imiterere yacyo shingiro nuko amatsinda ya carboxylmethyl muri CMC ahinduka igice cyangwa burundu mumunyu wa sodium, ni ukuvuga atome ya hydrogène mumatsinda ya carboxylmethyl isimburwa na sodium ion (Na⁺). Ubusanzwe CMC-Na ni ifu yera cyangwa nkeya yumuhondo cyangwa granules, byoroshye gushonga mumazi, kandi bigakora igisubizo kibonerana.

2. Uburyo bwo kwitegura
Uburyo bwo gutegura CMC-Na busa nubwa CMC, kandi intambwe nyamukuru zirimo:
Alkalinisation reaction: selile irigata ukoresheje sodium hydroxide (NaOH).
Etherification reaction: Alkalized selulose ikorwa na acide chloroacetic (ClCH₂COOH) kugirango itange CMC.
Sodiumisation reaction: CMC ihindurwa muburyo bwumunyu wa sodiumi muburyo bwo kutabogama mubisubizo byamazi.
Muri ubu buryo, birakenewe kwitondera kugenzura uko ibintu byifashe, nka pH nubushyuhe, kugirango tubone ibicuruzwa bya CMC-Na bifite imikorere myiza.

3. Imirima yo gusaba
Imirima ikoreshwa ya CMC-Na ni nini cyane, ikubiyemo inganda nyinshi nk'ibiribwa, ubuvuzi, imiti ya buri munsi, na peteroli. Mu nganda z’ibiribwa, CMC-Na ni umubyimba wingenzi, stabilisateur na emulisiferi, kandi ikoreshwa cyane mubikomoka ku mata, imitobe, ibiryo, n'ibindi. Mu rwego rwa farumasi, CMC-Na ikoreshwa nk'ibiti, gel hamwe n'amavuta yo kwisiga. . Mu nganda zikora imiti ya buri munsi, CMC-Na ikoreshwa mubicuruzwa nka menyo yinyo, shampoo, na kondereti, kandi bifite ingaruka nziza zo kubyimba no gutuza. Byongeye kandi, mu gucukura peteroli, CMC-Na ikoreshwa nkigenzura ryimbitse na rheologiya mugucukura ibyondo, bishobora guteza imbere amazi no gutuza kwicyondo.

(3) Itandukaniro nisano hagati ya CMC na CMC-Na
1. Imiterere n'imiterere
Itandukaniro nyamukuru hagati ya CMC na CMC-Na muburyo bwa molekile ni uko carboxylmethyl group ya CMC-Na ibaho igice cyangwa rwose muburyo bwumunyu wa sodium. Itandukaniro ryimiterere rituma CMC-Na yerekana imbaraga nyinshi kandi zihamye mumazi. Ubusanzwe CMC ni igice cyangwa se carboxymethylated selile, mugihe CMC-Na nuburyo bwa sodium yumunyu wa carboxymethyl selile.

2. Gukemura no gukoresha
CMC ifite ubushobozi bwo gukemuka mumazi, ariko CMC-Na ifite imbaraga zo gukemura neza kandi irashobora gukora igisubizo gihamye mumazi. Bitewe nuburyo bwiza bwo gukemura amazi no kuranga ionisiyoneri, CMC-Na yerekana imikorere myiza kuruta CMC mubisabwa byinshi. Kurugero, mu nganda zibiribwa, CMC-Na ikoreshwa cyane nkibyimbye kandi bigahinduka bitewe n’amazi meza yo gushonga hamwe nubukonje bwinshi, mugihe CMC ikoreshwa cyane mubisabwa bidasaba amazi menshi.

3. Gahunda yo kwitegura
Nubwo gahunda yo gutegura byombi isa nkaho, umusaruro wanyuma wumusaruro wa CMC ni carboxymethyl selulose, mugihe CMC-Na ikomeza guhindura carboxymethyl selulose muburyo bwumunyu wa sodiumi binyuze muburyo bwo kutabogama mugihe cyo gukora. Ihinduka ritanga CMC-Na imikorere myiza mubikorwa bimwe bidasanzwe, nkibikorwa byiza mubisabwa bisaba amazi meza hamwe na electrolyte itajegajega.

Carboxymethyl selulose (CMC) na sodium carboxymethyl selulose (CMC-Na) nibikomoka kuri selile ebyiri bifite agaciro gakomeye mu nganda. Nubwo bisa muburyo, CMC-Na yerekana amazi menshi kandi akomeye bitewe no guhindura amatsinda amwe cyangwa yose ya carboxyl muri CMC-Na mumunyu wa sodium. Itandukaniro rituma CMC na CMC-Na bafite ibyiza byihariye nibikorwa byabo mubikorwa bitandukanye byinganda. Gusobanukirwa no gukoresha neza ibyo bintu byombi birashobora gufasha kunoza imikorere yibicuruzwa no kuzamura umusaruro mubikorwa byinshi nkibiryo, ubuvuzi, ninganda zikora imiti.