Method for preparing antibacterial fiber material by using bagasse

Abstract

The invention relates to a method for preparing an antibacterial fiber material by using bagasse. The preparation method comprises the following steps of: fully drying and mechanically crushing the bagasse, removing cane wax by cable type extraction, removing hemicellulose by hot water bath, and removing lignin by using sodium chlorite and acid base to obtain separated bagasse cellulose; and adding an active reagent into the dried bagasse cellulose, stirring and activating, adding an esterification reagent into the activated bagasse cellulose system, and performing esterification reaction for 1 to 2 hours with stirring at room temperature, wherein the consumption of the esterification reagent is controlled to be 1 to 2 milliliters in each 1 gram of bagasse cellulose; and adding alcoholic alkali liquor into the reaction solution after the reaction is finished to separate out a product, washing the sediment by using 95 percent ethanol, and drying for 3 hours by blowing air at the temperature of 60 DEG C to obtain bagasse cellulose ester derivative, wherein a test proves that the average substitution degree is 0.3 to 0.6, and the crystal structure of the fibers is complete. The obtained antibacterial bagasse fibers have obvious inhibiting effect on most food putrefying bacteria and skin fungi, and can be used for food packing materials and antibacterial functional textile products.

Description

technical field

[0001] The invention relates to a method for preparing an antibacterial fiber material, which converts bagasse into wood fiber material with antibacterial function through chemical treatment. The obtained products are used as raw materials for antibacterial packaging materials and for the manufacture of special paper, etc. Background technique

[0002] In recent years, the conversion of agricultural waste and renewable resources to obtain new materials, high calorific value energy, chemical raw materials and medicines is becoming an important new development trend. Agricultural and chemical scientists in European countries and Japan are actively exploring the use of agricultural waste and other renewable resources as raw materials to produce new chemical products. In the plant and crop-based renewable resource utilization plan formulated by the U.S. Department of Energy, it is estimated that chemical products based on renewable plant resources will reach 10%...