Abstract:

Relaxed heat treatment of bamboo viscose fiber was carried out, and the influence of treatment time and temperature on he crystalline structure, whiteness and mechanical properties of the fiber was investigated and compared with the common viscose fiber. The results showed that the crystallinity of bamboo viscose fiber decreases after relaxed heat treatment under different temperatures. At the temperature of 180℃, its crystallinity decreases obviously with the increase of heating time. Heat treatment brings greater damage to the crystal structure of bamboo viscose fiber than to common viscose fiber, as shown in greater decrease in tensile strength, breaking elongation and specific work of rupture. It is indicates that the heat resistance of bamboo viscose fiber is worse than that of common viscose fiber.