HYDROLYSIS OF CELLULOSE OF BAMBOO FIBER DURING DISSOULTION

摘要

The bamboo fiber has been hydrolyzed in formic acid during dissolution. After hydrolysis, the formic acid could be cleanly recycled, the solid soluble sugar was left. After being dipped into formic acid solution for 0.5h, bamboo fiber was swelled; After 1.0 h, the bamboo fiber was gradually dissolved, the solution changed greener and darker until the bamboo fiber was thoroughly dissolved in the solution after 4.0 h. A clear hierarchial tissue structure on the fiber surface was observed by AFM (Atomic Force Microscopy) before treatment, but this differential structure disappeared after treatment for 0.5 h, the fiber surface became plump and glossy. After reaction for 6 h at 60 ℃, the solid sugar with glucose as the significant component was left, with the yield of 54.5%.