Products Description
Each anhydroglucose unit contains three hydroxyl groups, shown in white. By substituting carboxymethyl groups for some of the hydrogens of these hydroxyls, as shown in Figure 1, sodium carboxymethylcellulose is produced. If all three hydroxyls are replaced, the maximum theoretical DS of 3.0 (impossible in practice) results.
Idealized Unit Structure of CMC, with a DS of 1.0
Optimum water solubility and other desirable physical properties of CMC are obtained at a much lower degree of substitution than 3. The most widely used types of Sinocell CMC have a DS of 0.7 . V
CMC solution characteristics depend on the degree of polymerization (DP) as well as the degree of substitution. Average chain length and degree of substitution determine molecular weight of the polymer. As molecular weight increases, the viscosity of CMC solutions increases rapidly.
Sinocell CMC has a minimum purity of 99.5%. it has the following functions and properties:
- Control Viscosity and rheology
- Suspending and binding rheology
- Water retention aid
- Crystal growth inhibitor
- Strong ,resistant film former
These properties and functions make it suitable for use in a broad range of applications in the food, pharmaceutical, cosmetic, paper, and other industries. Various types based on carboxymethyl substitution, viscosity, particle size, and other parameters.
Major application for Sinocell CMC
Pharmaceutical preparation
Cosmetics and personal care products
Toothpaste
Food : Frozen dairy products ,pet food , bakery products , beverages ,low calorine food , instant products,salad dressings .
Ceramic
Oil field
Construction
