Optimization of Sodium Carboxymethyl Cellulose Preparation from Bagasse by Response Surface Methodology

• Published in: IOP conference series. Materials Science and Engineering Vol. 381; no. 1; pp. 12043 - 12048
• Main Authors: Ye, Hangyu, Xu, Shuping, Wu, Shuqi, Chen, Weiqing
• Format: Journal Article
• Language: English
• Published: IOP Publishing 16.08.2018
• ISSN: 1757-8981; 1757-899X; 1757-899X
• DOI: 10.1088/1757-899X/381/1/012043

In this work, the process of sodium carboxymethyl cellulose (CMC) prepared from pretreated bagasse was studied. On the basis of single factor experiments, further research on the interaction among the significant elements was conducted by means of steepest ascent, Box-Behnken design and response surface methodology. Consequently, it turned out that the optimum carboxymethyl reaction factors were as follows: In ethanol-water solution, NaOH as basifier, alkalized at 31.2°C for 120min; chloroacetic aicd as etherifying agent, etherified at 56°C for 132min; afterwards, temperature was kept at 70°C for 10min. Under these conditions, viscosity of 1% CMC aqueous solution reached 243 mPa·s. Compared to that of the original value, it has an increase of 32.1%.