Ordinary starch cellulose

Ordinary starch cellulose

Sodium carboxymethyl starch (CMS-Na), also known as carboxymethyl starch, is an anionic starch ether and an electrolyte soluble in cold water. It is a type of modified starch that belongs to the ether starch category, offering water-soluble anionic polymer characteristics. CMS-Na is resistant to molding and easily soluble in water when the degree of substitution exceeds 0.2. In aqueous solution, CMS-Na demonstrates stability and excellent performance, providing functions such as bonding, thickening, water retention, emulsification, suspension, and dispersion.

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Starch cellulose (CMS)

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Ordinary starch cellulose

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  • DESCRIPTION

  • Sodium carboxymethyl starch (CMS-Na), also known as carboxymethyl starch, is an anionic starch ether and an electrolyte soluble in cold water. It is a type of modified starch that belongs to the ether starch category, offering water-soluble anionic polymer characteristics. CMS-Na is resistant to molding and easily soluble in water when the degree of substitution exceeds 0.2. In aqueous solution, CMS-Na demonstrates stability and excellent performance, providing functions such as bonding, thickening, water retention, emulsification, suspension, and dispersion. 

    (I) Food grade sodium carboxymethyl starch 

    CMS-Na, a carboxymethyl starch ether, is odorless, non-toxic, resistant to molding, and readily soluble in water. It finds application in various foods, exhibiting functions such as thickening, suspending, emulsifying, stabilizing, shaping, film-forming, expanding, preserving freshness, acid resistance, and health benefits. Its performance surpasses that of carboxymethyl cellulose (CMC) as a CMC replacement product. 

    (II) Pharmaceutical grade sodium carboxymethyl starch 

    In pharmaceutical formulations, CMS can replace gelatin as a raw material for producing capsules, tablets, and sugar-coated medicines. 

    (III) Papermaking grade sodium carboxymethyl starch 

    CMS-Na, when added to papermaking fillers as a stabilizer, acts as a thickening and binding agent, enhancing paper glossiness, improving printability, and increasing paper toughness and abrasion resistance. Used as an internal additive, it enhances retention and filtration effects. Additionally, applied to paper surface sizing, it significantly improves paper dry and wet strength, oil resistance, ink absorption, and water resistance. 

    (IV) Construction industry grade sodium carboxymethyl starch 

    Sodium carboxymethyl starch (CMS) serves as a thickening and water-retaining agent in putty powder and emulsion paint. In paint, it acts as a suspending agent, stabilizer, and film-forming agent, offering emulsification, thickening, and anti-deposition properties. 

    (V) Ceramics industry grade sodium carboxymethyl starch 

    Sodium carboxymethyl starch (CMS) is employed in the ceramics industry as a shaping agent, plasticizer, and enhancer for blanks. It enhances the bonding force of blanks, facilitating easy molding, doubling the flexural strength, and effectively reducing breakage rates. Additionally, it promotes uniform moisture evaporation in blanks, preventing drying-induced cracks. When added to glaze slip as a stabilizer and binder, CMS enhances the binding of billet glaze, disperses the glaze, increases glaze surface tension, improves glaze surface smoothness, and reduces pinhole occurrences after baking. 

    Ordinary starch cellulose (for oilfield drilling, in accordance with National Standard 5005-2010) 

    Ordinary starch cellulose quality indicators 

    Item

    Indicators

    Suspension

    Viscometer 600r/min reading

    40g/L brine

    ≤18

    Saturated brine

    ≤20

    Loss on filtration/ml

    40g/L brine

    ≤10

    Saturated brine

    ≤10

    2000μm sieve residue

    None

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