Dab tsi yog qhov sib txawv ntawm CMC (Carboxymethylcelleculose) thiab starch ether?

1. Cov qauv thiab muaj pes tsawg leeg:

CMC (Carboxymetylcelleculose):

CMC yog qhov ua kom pom kev ntawm cellulose, lub ntuj polymer pom hauv tsob ntoo cell phab ntsa.
Cellulose molecules yauv ua cov txheej txheem tshuaj lom neeg hu ua Carboxymethylation, uas Carboxymethyl Pawg (-ch2-Cooh) tau qhia rau hauv lub cellulose caj qaum.
Cov qib degree (DS) sawv cev tus naj npawb ntawm cov carboxymethyl pawg ib chav dej qab zib hauv lub cellulose chart.

Starch:

Cov hmoov txhuv nplej siab yog cov khoom siv carbohydrate muaj cov piam thaj ua ke txuas nrog ua ke los ntawm α-1,4-glycosidic bonds.
Nws yog polysaccharide uas yog thawj lub zog cia molecule hauv nroj tsuag.
Cov hmoov txhuv nplej siab yog ua los ntawm ob lub ntsiab ntawm lub ntsiab lus: Amylose (ncaj txuas ntawm cov dej qab zib) thiab amylopectin (branched chains).

2. Source:

Sodium Carboxymethyl cellulose:

CMC feem ntau yog muab los ntawm cellulose-nplua nuj cog cov khoom siv xws li ntoo pulp, paj rwb, lossis lwm yam nroj tsuag.
Cov txheej txheem carboxymowylation converts cellulose rau hauv dej-soluble thiab ntau ntau yam tebchaw.

Starch:

Cov hmoov txhuv nplej siab pom muaj ntau cov nroj tsuag, suav nrog cov khoom siv (xws li pob kws, nplej, qos yaj ywm, Cassava).
Cov txheej txheem rho tawm cuam tshuam nrog rhuav tshem cov phab ntsa ntawm tes kom tso cov hmoov txhuv nplej siab granules.

3. Solubility:

Sodium Carboxymethyl cellulose:

CMC yog cov dej-soluble vim yog cov kev qhia ntawm Carboxymethyl pawg, uas imparts hydrophilicity rau cov molecule.
Nws ua cov kev daws teeb meem meej, cov tshuaj tua kab mob hauv dej thiab yog tsim rau ntau yam kev siv hauv kev lag luam xws li khoom noj, chaw muag tshuaj thiab tshuaj pleev ib ce.

Starch:

Cov hmoov txhuv nplej siab feem ntau insoluble hauv dej txias.
Txawm li cas los xij, cua sov hmoov hauv dej ua rau nws o tuaj yeem ua rau nws thaum kawg nkaus gelatinize, ua kev raug tshem tawm.

4.Rheological Khoom:

Sodium Carboxymethyl cellulose:

CMC cov khoom ua pov thawj pseudopastic tus cwj pwm, lub ntsiab lus hais tias nws viscosity txo nrog shear kev ntxhov siab.
Cov cuab yeej no yog qhov tseem ceeb hauv cov ntawv thov uas yog qhov pom tseeb yog qhov tseem ceeb, xws li cov qauv ntawm cov xim thaws, cov tshuaj nplaum thiab khoom noj.

Starch:

Cov kab mob hmoov txhuv nplej siab muaj peev xwm gelatinize, tsim cov gels nrog txawv teb cov khoom.
Cov kua nplaum hmoov txhuv nplej siab yog qhov tseem ceeb hauv kev lag luam khoom noj rau cov khoom siv thickening thiab gelling.

5.Txhua kev thov:

Sodium Carboxymethyl cellulose:

Dav siv nyob rau hauv kev lag luam khoom noj ua cov tuab yaj ntaub, stabilizer thiab nyiam.
Nws yog feem ntau siv nyob rau hauv cov kws ua tshuaj vim nws cov khoom siv khi thiab ua kom muaj kev cuam tshuam cov khoom hauv ntsiav tshuaj.
Pom nyob rau hauv ntau yam khoom saib xyuas tus kheej xws li tshuaj txhuam hniav thiab cov cream suav.

Starch:

Cov khoom tseem ceeb hauv kev lag luam khoom noj khoom haus, nws muaj cov tuab yaj loj thiab cov qauv ua kom zoo.
Siv hauv kev tsim cov khoom lag luam biodegradable plastics thiab raws li ib qho chaw ntawm cov suab thaj fermentable hauv ethanol ntau lawm.
Rau sizing thiab txheej hauv cov ntawv kev lag luam.

6. Biodegradity:

Sodium Carboxymethyl cellulose:

CMC yog biodegradable thiab yog li ntawd muaj cov kev ua phooj ywg ib puag ncig.
Nws siv nyob rau hauv ntau yam kev lag luam yog nyob rau hauv kab nrog kev loj hlob thov rau kev ua kom muaj kev cia siab thiab ib puag ncig cov ntaub ntawv.

Starch:

Cov hmoov txhuv nplej siab tseem yog biodegradable, ua nws txoj kev xaiv tsim nyog rau cov ntawv thov ib puag ncig.
Lub biodegradity ntawm cov hmoov txhuv nplej siab pab kom txo cov kev cuam tshuam ib puag ncig.

7. Zaj duab xis-ua kev ua tau zoo:

Sodium Carboxymethyl cellulose:

CMC tuaj yeem tsim cov yeeb yaj kiab nrog cov khoom siv zoo thiab yooj.
Cov cuab yeej no yog siv hauv kev tsim cov yeeb yaj kiab uas muaj cov zaub mov siav thiab khoom noj khoom noj.

Starch:

Ib zaj duab xis hmoov txhuv nplej siab yog tsim los ntawm cov txheej txheem gelatinization.
Cov yeeb yaj kiab no pom cov ntawv thov hauv kev ntim khoom, qhov twg biodegradable cov ntaub ntawv yog nyiam.

8. Kev Ua Haujlwm:

Sodium Carboxymethyl cellulose:

CMC cov kev daws teeb meem nthuav qhia qee qib ntawm kev coj ua vim muaj cov pab pawg carboxyl.
Cov cuab yeej no tau siv cov ntawv thov, xws li kev lag luam electrochemical.

Starch:

Cov hmoov txhuv nplej siab tsis muaj hluav taws xob tseem ceeb.

9. xaus:

CMC thiab cov hmoov txhuv sib txawv txawv hauv cov qauv, keeb kwm, cov khoom thiab kev siv. CMC tau muab los ntawm cellulose, yog cov dej-soluble, muaj pseudopastic cwj pwm, thiab yog siv dav hauv cov zaub mov, tshuaj lag luam, thiab kev lag luam kom hniav. Cov hmoov txhuv nplej siab yog polysaccharide uas yog insoluble hauv dej txias tab sis gels thaum rhuab, ua rau nws muaj txiaj ntsig hauv cov zaub mov, ntawv ntim khoom. Ob CMC thiab cov hmoov txhuv nplej siab pab txhawb rau kev txhim kho kom muaj kev ruaj ntseg thiab cov ntaub ntawv biodegradable, hauv kab nrog lub ntiaj teb kev daws teeb meem. Nkag siab cov kev sib txawv no tuaj yeem pab koj ua kom tau txais kev xaiv thaum xaiv cov khoom siv tau rau ib qho kev lag luam tshwj xeeb.