| Abstract:In this study, the morphology, structure evolution and physical properties of Dendrocalamus Membranaceus Munro fibers during the growth process were studied by scanning electron microscopy and two-dimensional wide-angle X-ray diffractometer. The results showed that the differentiation and development of the base of bamboo was earlier than that of the tip. With the increase of bamboo age, the cell wall thickening was obvious in the first 10 months, and the wall cavity ratio was 0.10 at 3 months and 4.03 at 36 months. As the cell wall gradually thickened, the fiber became stiff from soft and easy to bend. By scanning electron microscopy, the fiber gradually changes from a flat shape to a multi-prism or an approximate cylinder; the average fiber length and the average width of bamboo fiber increased. At the same bamboo age, the microfibril angle of the fiber gradually increased from the part near the green skin to the part near the inner wall of the bamboo ring, and fluctuated with the increase of the radial height. In the range of 9-14° , the fiber orientation was good. |