Sodium carboxymethylcellulose ni iki?

Sodium carboxymethylcellulose(CMC) ni anionic selulose ether. Isura yacyo ni ifu yera cyangwa yumuhondo nkeya ya fibre fibre cyangwa ifu yera, impumuro nziza, uburyohe, kandi idafite uburozi; irashobora gushonga byoroshye mumazi akonje cyangwa ashyushye kandi ikora ubwiza runaka. igisubizo kiboneye. Igisubizo ntaho kibogamiye cyangwa alkaline nkeya, ntigishobora gushonga muri Ethanol, ether, isopropanol, acetone nindi miti ikomoka ku buhinzi, ariko igashonga muri 60% ya Ethanol cyangwa acetone. Ni hygroscopique kandi ihamye kumucyo n'ubushyuhe. Ubukonje bugabanuka hamwe no kwiyongera kwubushyuhe. Igisubizo kirahamye kuri pH 2-10. Iyo pH iri munsi ya 2, ibinini biragwa. Iyo pH irenze 10, ubukonje buragabanuka. Ubushyuhe bwo guhindura ibara ni 227 ° C, ubushyuhe bwa karubone ni 252 ° C, naho ubushyuhe bwo hejuru bwumuti wa 2% ni 71mn / n.

imiterere yimiti

Iraboneka mu kuvura selile ikoresheje insimburangingo ya carboxymethyl, ivura selile hamwe na hydroxide ya sodium kugirango ikore alkali selile, hanyuma ikore na aside monochloroacetic. Igice cya glucose kigize selile gifite amatsinda atatu ya hydroxyl ashobora gusimburwa, bityo ibicuruzwa bifite impamyabumenyi zitandukanye zo kubisimbuza birashobora kuboneka. Ugereranije, 1mmol ya carboxymethyl groupe kuri 1g yuburemere bwumye ntishobora gushonga mumazi na acide acide, ariko irashobora kubyimba no gukoreshwa muburyo bwo guhanahana ion. Carboxymethyl pKa ni 4 mumazi meza na 3.5 muri 0.5mol / L NaCl. Nibihinduranya acide acide kandi mubisanzwe bikoreshwa mugutandukanya poroteyine zidafite aho zibogamiye kandi shingiro kuri pH> 4. Kurenga 40% byamatsinda ya hydroxyl asimburwa nitsinda rya carboxymethyl, rishobora gushonga mumazi kugirango habeho igisubizo gihamye-cyinshi cya colloidal.

Intego nyamukuru

Carboxymethylcellulose (CMC) ni ifu idafite ubumara, idafite impumuro nziza yifu ya flucculent ifite imikorere ihamye kandi irashobora gushonga byoroshye mumazi. Igisubizo cyamazi yacyo nikidafite aho kibogamiye cyangwa alkaline ibonerana yuzuye amazi ya viscous, igashonga mubindi bikoresho bifata amazi hamwe na resin, kandi ntibishobora gushonga mumashanyarazi kama nka Ethanol. CMC irashobora gukoreshwa nka binder, kubyimbye, guhagarika ibikorwa, emulifiseri, gutatanya, stabilisateur, agent ingana, nibindi.

Sodium carboxymethyl selulose (CMC) nigicuruzwa gifite umusaruro mwinshi, uburyo bwagutse bwo gukoresha no gukoresha byoroshye muri ethers ya selile, bakunze kwita “inganda monosodium glutamate”.

1. Ikoreshwa mu gucukura peteroli na gaze karemano, gucukura neza nindi mishinga

Mud Icyondo kirimo CMC kirashobora gutuma urukuta rw'iriba rukora agatsima koroheje kandi gakomeye kayunguruzo gafite ubushobozi buke, kugabanya gutakaza amazi.

② Nyuma yo kongeramo CMC mucyondo, uruganda rucukura rushobora kubona imbaraga nkeya zogosha, kugirango icyondo gishobora kurekura byoroshye gaze yizingiye, kandi mugihe kimwe, imyanda irashobora gutabwa vuba mumwobo wibyondo.

Gucukura ibyondo, kimwe nibindi bihagarikwa no gutatana, bifite ubuzima bwihariye. Ongeraho CMC irashobora gutuma itajegajega kandi ikongerera igihe cyo kubaho.

Mud Icyondo kirimo CMC ntigikunze kwibasirwa nububiko, ntabwo rero ari ngombwa kugumana agaciro gakomeye ka pH no gukoresha imiti igabanya ubukana.

Harimo CMC nk'umukozi wo kuvura gucukura ibyondo bitemba, bishobora kurwanya umwanda wumunyu utandukanye.

Mud Icyondo kirimo CMC gifite ituze ryiza kandi gishobora kugabanya gutakaza amazi nubwo ubushyuhe buri hejuru ya 150 ° C.

CMC ifite ubukonje bwinshi kandi murwego rwo hejuru rwo gusimbuza ikwiranye nicyondo gifite ubucucike buke, na CMC ifite ubukonje buke hamwe nubunini bwo gusimbuza ikwiranye nicyondo gifite ubucucike bwinshi. Guhitamo CMC bigomba kugenwa ukurikije ibihe bitandukanye nkubwoko bwibyondo, akarere, nubujyakuzimu.

2. Ikoreshwa mu nganda zidoda, gucapa no gusiga amarangi. Mu nganda z’imyenda, CMC ikoreshwa nkigikoresho kinini cyo gupima ubudodo bworoshye bwa pamba, ubwoya bwa silike, fibre chimique, bivanze nibindi bikoresho bikomeye;

3. Ikoreshwa munganda zimpapuro CMC irashobora gukoreshwa nkibikoresho byoroshya impapuro na agent ingana ninganda. Ongeraho 0.1% kugeza 0.3% ya CMC mumashanyarazi irashobora kongera imbaraga zingutu zimpapuro 40% kugeza kuri 50%, kongera ubukana bwa 50%, no kongera imitungo yo gukata inshuro 4 kugeza kuri 5.

4. CMC irashobora gukoreshwa nka adsorbent yanduye iyo yongewe kumashanyarazi; imiti ya buri munsi nkinganda zinyoza amenyo CMC glycerol yumuti wamazi ikoreshwa nkibishishwa byinyo; uruganda rwa farumasi rukoreshwa nkibibyimbye na emulisiferi; Umuti wamazi wa CMC ukoreshwa nkureremba nyuma yo kubyimba Mining nibindi.

5. Irashobora gukoreshwa nka adhesifike, plasitike, guhagarika agent ya glaze, ibikoresho byo gutunganya amabara, nibindi mubikorwa byububumbyi.

6. Ikoreshwa mubwubatsi mugutezimbere amazi n'imbaraga

7. Ikoreshwa mu nganda zibiribwa. Inganda zikora ibiribwa zikoresha CMC hamwe n’urwego rwo hejuru rwo gusimburwa nkibyimbye bya ice cream, ibiryo byafunzwe, isafuriya ihita, hamwe na stabilisateur ya byeri. Kubyimbye, guhambira cyangwa guhuza ibintu.

8. Uruganda rwa farumasi ruhitamo CMC hamwe nubwiza bukwiye nka binder, gusenya ibinini, no guhagarika ibikorwa byo guhagarika, nibindi.