Optimal process of alkali treatment to natural bamboo fiber

The natural bamboo fiber was modified by orthogonal experiment,the effect of concentrations of alkali,temperature and time on the mechanical properties of nature bamboo fiber after alkali treatment is studied.Meanwhile,bamboo fiber′s longitudinal and transverse microstructure are observed by electron microscopy.The results show that the intensity of nature bamboo fibers were greatly affected by temperature,while the fineness and the elongation of fiber is greatly affected by concentrations of alkali. The best process of alkali treatment is as follows:the concentrations of alkali is 7.5g/L,the temperature of liquid is 20℃,and keep the treatment for 90mins,then the intensity of nature bamboo fiber declined slightly,the elongation and fineness of irregularity obviously improved,therefore the spinnability of nature bamboo fiber can be improved as well.