Optimization on Preparation of Cross-linked Carboxymethyl Modified Cellulose

The cross-linked carboxymethyl modified cellulose is prepared by the reaction of carboxymethyl cellulose with epichlorohydrin as crosslinking agent under ethanol water condition.The regression equation of the modification parameters is established by using quadratic general rotary experiment design.The optimum technology conditions are confirmed as follows: the epichlorohydrin adition is 6.4%,reaction temperature is 71.71 t,reaction time 2.12 h,pH is 9.04.By using scanning electron microscope,the particle surface of morphology cellulose,carboxymethyl cellulose,crosslinking-carboxymethyl cellulose is researched.