Gutegura Carboxymethyl selile

Carboxymethyl Cellulose (CMC)Ese polymedi itandukanye y'amazi yaturutse kuri selile, niyihe mibo isanzwe iboneka mu rukuta rw'ibimera. CMC finds extensive applications in various industries including food, pharmaceuticals, cosmetics, textiles, paper, and many others due to its unique properties such as thickening, stabilizing, binding, film-forming, and water retention. Gutegura CMC bikubiyemo intambwe nyinshi zitangira uhereye kuri selile ziva mu masoko karemano akurikirwa no guhinduranya kugirango utangire amatsinda ya Carboxymethyl.

1. Gukuramo selile:
Intambwe yambere mugutegura CMC ni ugukuramo selile biva mumasoko karemano nka pulp yimbaho, ipamba, cyangwa izindi fibre yibihingwa. Ubugari busanzwe bwabonetse binyuze murukurikirane rwibikorwa birimo gupakira, guhimba, no kwezwa. Kurugero, ibiti byimbaho ​​birashobora kuboneka kubutaka bwamashini cyangwa imiti ikurikirwa no kuvanga hamwe na chlorine cyangwa hydrogen peroxide kugirango ukureho umwanda no kurira.

2. Gukora selile:
Iyo selile imaze gukurwaho, igomba gukora kugirango yorohereze intangiriro yitsinda rya Carboxymethy. Gukora mubisanzwe bigerwaho no kuvura selile hamwe na alkali nka sodium hydroxide (naoh) cyangwa sodium karubone (NA2Conate (NA2Co3) igenzurwa nubushyuhe nigitutu. Kuvura Alkali byarumiwe fibre ya selile kandi byongera uko byagenda bicamo intera na hydrogen yiterabwoba.

3.
Ubugari bwa seliki bwakoraga nyuma yo gukorerwa ibyuma bya Carboxymethylation aho amatsinda ya Carboxymethyl amatsinda ya Carboxymethyl (-Ch2cooh) yamenyeshejwe ku matsinda ya hydroxyl yiminyururu ya selile. Iyi myitwarire isanzwe ikorwa nukwinjiza muri selile ifatanije na sodiorocetacet (SMCA) imbere ya cataline ya alkaline nka sodium hydroxide (naoh). Imyitwarire irashobora guhagararirwa nkibi bikurikira:

Cellulose + Chloroacetic Acide → Carboxymethyll Cellulose + Nacl

Imiterere yimyitwarire irimo ubushyuhe, igihe cyimyitwarire, kwibanda kuri reagents, na PI bigenzurwa neza kugirango habeho umusaruro mwinshi kandi wifuzwa kumwanya usanzwe witsinda rya CARBoxymethyl ryatangijwe kuri Glucose.

4. Kutabogama no gukaraba:
Nyuma yimyitwarire ya carboxymethylation, Carboxyymethyl selile ya selile iratabogamye kugirango ikureho aside ya alkali kandi idakosowe. Ibi mubisanzwe bigerwaho no koza ibicuruzwa hamwe namazi cyangwa igisubizo kidasanzwe gikurikizwa no gukandamira CMC ikomeye kuva reaction kuvanga.

5. Isuku:
CMC isuku Yogejwe n'amazi inshuro nyinshi kugirango ukureho umwanda nkuyu mumkumi, reagents idasubirwaho, nibicuruzwa. Gukangurura cyangwa centrifugation birashobora gukoreshwa mugutandukanya cmc yasukuye mumazi yoza.

6. Kuma:
Hanyuma, imodoka isukuye yuzuyeho selile itumye kugirango ikureho ubushuhe busigaye kandi ibone ibicuruzwa byifuzwa muburyo bwifu yumye cyangwa granules. Drying can be accomplished using various methods such as air drying, vacuum drying, or spray drying depending on the desired characteristics of the final product.

7. Kuranga no kugenzura ubuziranenge:
YumyeCmcIbicuruzwa bikorerwa uburyo butandukanye buranga nka kane muburyo bwa kane (ftur), NMR), na ruguru ya rukuruzi ya kirimbuzi, hamwe nibipimo bya rukuruzi kugirango byemeze imiterere ya fotomique, urwego rwo gusimbuza, uburemere bwa molecular, nubuziranenge bwa molecular, no kweza. Ibizamini byo kugenzura neza nabyo bikorwa kugirango ibicuruzwa byujuje ibisobanuro bisabwa kubisabwa.

the preparation of carboxymethyl cellulose involves several steps including the extraction of cellulose from natural sources, activation, carboxymethylation reaction, neutralization, purification, drying, and characterization. Buri ntambwe isaba kwigarurira ibintu nibipimo kugirango ugere kumusaruro mwinshi, urwego rwifuzwa rwo gusimbuza, nubwiza bwibicuruzwa byanyuma. CMC ni polymer ikoreshwa cyane hamwe na porogaramu zitandukanye kubera imitungo yihariye kandi itandukanye.