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|Name:||Carboxymethyl Cellulose||Other Name:||Cellulose Gum|
|Classification:||Paper Defibrination Optimization||Type:||Stabilizer|
paper sizing chemicals,
cmc sodium carboxymethyl cellulose
Paper Sizing Agents Carboxymethyl cellulose for paper defibrination optimization
CMC paper grade has excellent adhesion, thickening, emulsification, suspension, flocculation, film, colloids protection, retain moisture, chemical stability and excellent performance of pulp fiber affinity. A carboxymethyl group of the hydrophilicity introduced in its molecular structure makes the cellulose swelling greatly improve, so that it is easy to be affinity with pulp fibers and filler particles, and enhance the paper’s toughness and strength; It also can promote pulp and filler with negative electron and repel each other, make the fiber and filler are well distributed in the pulp to improve paper uniformity; it can be applied in the surface sizing agent to improve the paper strength and smoothness; disperse the pigment, and improve the printing effect; it can increase water retention effect by controlling and regulating the paint rheology; it shows more excellent whitening effect and paper hue improvement effect than starch and polyethylene glycol as a fluorescent whitening agent carrier. It is a versatile paper additives.
CMC is added in the process of vegetable fiber being refined, it can enhance the lubrication property between fibers, protect the fiber from over cutting during beating process, boost fiber swell up, make the outer layer of secondary wall open easier, good fibrillation, easy beating, reduce the refining energy and save the cost.
|2% Solution Viscosity (mPa.s)||≤1000|
|Substitution of degree||0.65-1.0|
|Dry reduction %||≤10.0|
CMC which is applied in defibrination optimization will show the effect as follows:
1 . Swell up the fiber, promote the fibrillation, and enhance the beating degree;
2 . Form the internal fibrillation, and increase the water retention value of the size;
3 . enhance the lubrication property, protect the fiber from over cutting and increase the fiber length;
4 . Make the exposure of oxhydryl and ethyloic, and enhance the electric charges on fiber surface;
5 . By the same requirement of beating degree, refining energy will be greatly reduced.