Zhang Zhicheng,Zheng Yuansuo
(School of Environmental and Chemical Engineering,Xi'an Jiaotong University,Xi'an 710049, China)
Abstract：Three kinds of polyester fibers with the same length/diameter ratio and different diameters were used to reinforce neoprene (4172). The average length/diameter ratio and its distribution of short fibers were measured statistically. The experimental results show that the average length/diameter ratio and its distribution of short fibers are strongly influenced by the fibers'diameter, content, and the fabrication process of composite, et al. With the increase of diameter, the rupture velocity of short fibers becomes slow and their average length increases. The more fibers are added, the longer everage fiber length can be obtained in composite. During the process of flimsy-rolling, different fiber diameters approach to a same length/diameter ratio. Some useful results are obtained for the making of this kind of composites.
Keywords：length/diameter ratio;composite;statistics