Sodium Carboxymethyl Cellulose (CMC) Process Control
Release time:
2026-04-15
In actual production, the viscosity of a 1% aqueous solution of sodium carboxymethyl cellulose (CMC) is one of the core competitive advantages for a company. Generally, the viscosity of a 1% aqueous solution from food-grade refined cotton is slightly lower than that from industrial-grade refined cotton. A higher viscosity 1% aqueous solution means a more competitive product with the target viscosity.
In actual production, the viscosity of a 1% aqueous solution of sodium carboxymethyl cellulose (CMC) is one of the core competitive advantages for a company. Generally, the viscosity of a 1% aqueous solution from food-grade refined cotton is slightly lower than that from industrial-grade refined cotton. A higher viscosity 1% aqueous solution means a more competitive product with the target viscosity.
In reality, even in the same factory producing products with the same parameters, the viscosity is not constant and is affected by the following factors:
1. The quality of the refined cotton. The degree of polymerization and moisture content of the refined cotton affect the viscosity of the finished sodium carboxymethyl cellulose product. Therefore, raw material quality control is crucial.
2. The ambient temperature during production. Generally, the viscosity of sodium carboxymethyl cellulose is slightly lower when the ambient temperature is higher.
3. The humidity of the ambient weather. Prolonged rainy days usually increase the humidity in the production workshop. In this case, it is necessary to adjust the ratio of chloroacetic acid, alkali, refined cotton, and alcohol to achieve the ideal viscosity value for the finished sodium carboxymethyl cellulose product.
4. The timing of the alkalization and etherification reactions requires close coordination and precise operation between the control room operators and on-site workers.
For further discussion on sodium carboxymethyl cellulose, please leave a message: jack.liu@hengxinpolymer.com
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