What is the principle of CMC sodium as a viscosity

The principle is Newton’s law of motion in rheology. Please read the relevant internal essence of “rheology” in physical chemistry. It is difficult to explain it a word or two. If not to say: for the CMC dilute solution close to the Newtonian fluid, its shear deformation stress and edge cutting efficiency is a proportional relationship, between the proportion coefficient is called viscosity coefficient or motion viscosity.

The viscosity is effective between cellulose molecular chains, covering scattered color light forces and hydrogen bonds. Especially the cellulose active material polymerization is not a linear structure but multibranch structure, in solution, a lot of multi-branch cellulose interwoven together to form a space mesh structure, the larger the appropriate, molecular chain network structure formed between the more urgent, the solution of the utility of molecular chain between the greater strength.

The initiation flow of a dilute solution of cellulose must overcome the strength between the molecular chains, because the greater the force of the solution suitable for large aggregation. For viscosity calibration, the force suffered by CMC solution is gravity. In the case of unchanged gravity, the strength suitable for large CMC solution chain structure is strong, the flow is slow, and the slow flow reflects the large viscosity.

  • Ordinary viscosity is less than 1000 (100% B type) is low viscosity;
  • Viscosity in 2000-3000 (100% type B) is generally a medium sticky;
  • More than 3000 (100% type B) is highly sticky;
  • Some also say that less than 100 (100 percent type B) is ultra-low sticky.

CMC

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