Extraction of cellulose from paulownia plants and its simple ester carboxymethyl cellulose (na-kms) technology

In this experiment, Paulownia fiber plant is ground to 0.5-1 cm. order determine the optimum alkali solution concentration extract cellulose from raw material, degree of polymerization was determined by boiling in 25, 35, 50, 55 g/l solution. It can be seen table that certain properties produced under influence different concentrations have indicators. At alkaline 50 g/l, yield 49.6%, α-cellulose 89.5%, and known 1100 experiments. Ash content a positive indicator 1.78%. The scientific essence first soaked isopropyl alcohol mercerized caustic (NaOH) Then, alkylation process carried out adding amount monochloroacetic acid cellulose. resulting carboxymethylcellulose sent for purification. Na-CMC with 38-40% moisture washed 53% ethyl dried.