Carboxymethyl selulose (CMC) ni polymer ifite agaciro gakomeye mu nganda. Ni amazi ashonga anionic selulose ether ikomoka kuri selile naturel. Cellulose ni imwe mu miterere ya polymers nyinshi muri kamere kandi ni igice cyingenzi cyurukuta rwibimera. Cellulose ubwayo ifite ubushobozi buke mu mazi, ariko binyuze mu guhindura imiti, selile irashobora guhinduka nkibikomoka ku mazi meza, kandi CMC ni imwe muri zo.
Imiterere ya molekulire ya CMC iboneka mugutanga hydroxyl (—OH) igice cya molekile ya selile hamwe na aside ya chloroacetike (ClCH2COOH) kugirango itange insimburangingo ya carboxymethyl (—CH2COOH). Imiterere ya CMC igumana β-1,4-glucose urwego rwimikorere ya selile, ariko amwe mumatsinda ya hydroxyl arimo arimo asimbuzwa amatsinda ya carboxymethyl. Kubwibyo, CMC igumana urunigi rwa polymer iranga selile kandi ifite imikorere yitsinda rya carboxymethyl.
Imiterere yimiti ya CMC
CMC ni anionic polymer. Kubera ko itsinda rya carboxyl (—CH2COOH) mumiterere yaryo rishobora ionize kubyara ibicuruzwa bibi mugisubizo cyamazi, CMC irashobora gukora igisubizo gihamye nyuma yo gushonga mumazi. Amazi yo gukemura no gukemuka kwa CMC bigira ingaruka ku rwego rwo gusimbuza (DS) no ku rwego rwa polymerisation (DP). Urwego rwo gusimbuza bivuga umubare wamatsinda ya hydroxyl yasimbuwe nitsinda rya carboxyl muri buri glucose. Mubisanzwe, urwego rwo hejuru rwo gusimburwa, niko amazi meza ashobora gukomera. Mubyongeyeho, gukemura no kwiyegeranya kwa CMC kubiciro bitandukanye bya pH nabyo biratandukanye. Mubisanzwe, byerekana gukomera no gutuza neza mubihe bitagira aho bibogamiye cyangwa alkaline, mugihe mubihe bya acide, solubile ya CMC izagabanuka ndetse irashobora no kugwa.
Imiterere yumubiri ya CMC
Ubukonje bwibisubizo bya CMC nimwe mubintu byingenzi byingenzi bifatika. Ubukonje bwabwo bufitanye isano nibintu byinshi, harimo kwibanda ku gisubizo, urugero rwo gusimbuza, urugero rwa polymerisation, ubushyuhe nagaciro ka pH. Iyi viscosity iranga CMC igushoboza kwerekana umubyimba, geli hamwe ningaruka zifatika mubikorwa byinshi. Ubukonje bwa CMC nabwo bufite ibiranga kunanura ubwogoshe, ni ukuvuga ko ubukonje buzagabanuka munsi yingufu zogosha, ibyo bikaba byiza mubikorwa bimwe na bimwe bisaba amazi menshi.
Ahantu hasabwa CMC
Bitewe nimiterere yihariye yumubiri nubumashini, CMC ikoreshwa cyane mubice byinshi. Hano hari bimwe mubice byingenzi bikoreshwa:
Inganda zibiribwa: CMC ikoreshwa nkibyimbye, stabilisateur na emulisiferi mu nganda zibiribwa. Irashobora kunoza imiterere no gutekera ibiryo, nkibisanzwe muri ice cream, yogurt, jelly na sosi.
Uruganda rwa farumasi: CMC ikoreshwa nkibikoresho byifashishwa mu gufata imiti no gufatira ibinini mu rwego rwa farumasi. Irakoreshwa kandi nka moisturizer hamwe nogukora firime mukwambara ibikomere.
Imiti ya buri munsi: Mubicuruzwa bya buri munsi nka menyo yinyo, shampoo, detergent, nibindi, CMC ikoreshwa nkibibyimbye, ihagarika ibintu na stabilisateur kugirango ifashe ibicuruzwa gukomeza kugaragara neza no gukora.
Gucukura amavuta: CMC ikoreshwa nkongera imbaraga za viscosity na filteri mumazi yo gucukura amavuta, ashobora kunoza imiterere ya rheologiya yamazi yo gucukura kandi akirinda kwinjira cyane mumazi yo gucukura.
Inganda zikora imyenda nogukora impapuro: Mu nganda z’imyenda, CMC ikoreshwa mu guhingura imyenda no kurangiza, mu gihe mu nganda zikora impapuro, ikoreshwa nkibikoresho bishimangira kandi bingana nimpapuro kugirango byongere imbaraga kandi byoroshye impapuro.
Kurengera ibidukikije n'umutekano
CMC ni ibikoresho bitangiza ibidukikije bishobora kwangizwa na mikorobe kamere, bityo ntibizatera umwanda igihe kirekire ibidukikije. Byongeye kandi, CMC ifite uburozi buke n'umutekano muke, kandi ifite umutekano mwiza mubiribwa no gukoresha imiti. Nubwo bimeze bityo ariko, kubera umusaruro munini no kuyishyira mu bikorwa, hakwiye gukomeza kwitabwaho mu gutunganya imyanda y’imiti ishobora kubyara umusaruro.
Carboxymethyl selulose (CMC) ni imikorere itandukanye y'amazi-ashonga anionic polymer. CMC yabonetse muguhindura imiti igumana ibintu byiza bya selile isanzwe mugihe ifite amazi meza kandi idasanzwe yumubiri na chimique. Hamwe no kubyimba, gusya, gutuza no gukora indi mirimo, CMC yakoreshejwe cyane mu nganda nyinshi nk'ibiribwa, ubuvuzi, imiti ya buri munsi, gucukura peteroli, imyenda no gukora impapuro. Kurengera ibidukikije n’umutekano nabyo bituma byongerwaho ibicuruzwa byinshi.
Igihe cyo kohereza: Kanama-23-2024