Abstract:

For achieving of modification on bamboo pulp fibers, firstly, bamboo pulp fibers were oxidized into single carboxyl fiber, then modified single carboxyl fiber by using silk fibroin aqueous solution and study the concentration of silk fibroin solution, modification time and temperature on weight gain and the influence of breaking strength of the oxidized bamboo pulp yarns through single factor experiment and orthogonal experiment. Results show that with the increase of fibroin solution concentration and time, the weight gain of oxidized bamboo pulp yarns gradually increases, when the modification temperature is in the lower range, the weight gain changed little; the influence of fibroin solution concentration on breaking strength is small, but the longer modification time and the higher temperature will cause the loss of breaking strength; the best process conditions of fibroin modifying oxidation bamboo are the concentration of silk 30 g/L, the temperature 40 ℃, the time 90 min. In this condition, the weight gain of oxidized bamboo pulp fiber can be 5.4%, the breaking strength can keep at 1.29cN/dtex.

Key words: oxidized bamboo pulp fiber, modification process, weight gain rate, breaking strength