Guhuza Cellulose - Carboxymethyl Cellulose (CMC)

Carboxymethyl Cellulose (Sodium Carboxymethyl Cellulose), byitwa CMC, ni polymer igizwe nubuso bukora colloid. Nibikomoka ku mpumuro nziza, idafite uburyohe, idafite ubumara bwamazi-solubose selile. Ububiko bwa selile ya selile yabonetse ni ubwoko bwa selile, kandi umunyu wa sodium ukoreshwa muri rusange, bityo izina ryayo ryuzuye rigomba kuba sodium carboxymethyl selulose, ni ukuvuga CMC-Na. 

Kimwe na methyl selulose, carboxymethyl selulose irashobora gukoreshwa nka surfactant kubikoresho byangiritse kandi nkibikoresho byigihe gito kubikoresho byangiritse.

Sodium carboxymethyl selulose ni polyelectrolyte ya sintetike, bityo irashobora gukoreshwa nka dispersant na stabilisateur kugirango ibyondo byangirika kandi bivemo, kandi nubundi buryo bwigihe gito bukora neza. Ifite ibyiza bikurikira:

1.

2. imiterere y'inzego;

3. Gukoresha carboxymethyl selulose nka binder, nta ivu rimaze gutwikwa, kandi hariho ibikoresho bike cyane bishonga, bitazagira ingaruka kubushyuhe bwa serivisi yibicuruzwa.

Ibiranga ibicuruzwa:

1. Irashobora kubikwa igihe kirekire itangirika, kandi nayo irahagaze munsi yubushyuhe buke nizuba. Ariko, kubera ihinduka ryihuse ryubushyuhe, acide na alkalinity yumuti bizahinduka. Bitewe nimirasire ya ultraviolet na mikorobe, bizanatera hydrolysis cyangwa okiside, ubwiza bwumuti buzagabanuka, ndetse nigisubizo cyangiritse. Niba igisubizo gikeneye kubikwa igihe kirekire, imiti igabanya ubukana irashobora gutoranywa, nka fordehide, fenol, aside benzoic, hamwe nimbuto za mercure.

2. CMC ni kimwe nizindi polymer electrolytite. Iyo ishonga, izabanza kubyimba, kandi ibice bizafatana kugirango bibe firime cyangwa itsinda rya viscose, kuburyo bidashobora gutatana, ariko gusesa biratinda. Kubwibyo, mugihe utegura igisubizo cyamazi yacyo, niba ibice bishobora guhanagurwa mbere, igipimo cyo gusesa gishobora kwiyongera cyane.

3. CMC ni hygroscopique. Ikigereranyo cy'ubushuhe bwa CMC mu kirere cyiyongera hamwe no kwiyongera k'ubushyuhe bwo mu kirere kandi bikagabanuka n'ubwiyongere bw'ubushyuhe bwo mu kirere. Iyo ubushyuhe buringaniye bwubushyuhe bwicyumba ari 80% –50%, ubuhehere buringaniye buri hejuru ya 26%, nubushuhe bwibicuruzwa buri munsi ya 10%. Kubwibyo, gupakira ibicuruzwa no kubika bigomba kwitondera kutagira ubushuhe.

4. usibye kubanze shingiro acetate.

5. Acide organique cyangwa organic organique nayo izatera imvura mugukemura iki gicuruzwa. Imvura igwa iratandukanye bitewe n'ubwoko bwa acide. Mubisanzwe, imvura iba munsi ya pH 2.5, kandi irashobora kugarurwa nyuma yo kutabogama wongeyeho alkali.

6. Umunyu nka calcium, magnesium hamwe nu munyu wameza ntabwo bigira ingaruka yimvura kumuti wa CMC, ariko bigira ingaruka kugabanya ubukonje.

7.

8. , xylene, amavuta yintoki, nibindi ntibishobora guhinduka mumasaha 24.