近年来合成纤维已经得到了极其广泛的应用,然而对于纤维的结构到目前为止还没有能够彻底阐明,根据一般从熔融体纺丝的过程可知,聚合物首先是从熔融体形成丝,然后在一定条件下经过拉伸而生成高度取向的纤維。大量的实验事实証明,結晶高聚物从熔融体結晶时通常都是形成球晶,因此从拉伸丝到形成纤维的过程很可能与球晶的形变相联系,然而許多作者在研究球晶的形变和纤維的結构时都没有注意到这点,他们只是分别地研究纤維的結构和球晶的形变,没有进一步将它們联系起来进行研究,因此从研究纤維所得的結果很难加以解释,例如,为什么在取向纤維中还存在完整的球晶?为什么纤維中存在许多空洞?钎維中的結构单元是什么?以及纤維中的結构如何从熔块中的 In recent years, synthetic fibers have been extremely widely used, however, the structure of the fibers has not yet been completely elucidated. According to the general spinning process from the melt, the polymer first forms a filament from the melt, Under the conditions of stretching to produce highly oriented fibers. A large number of experimental facts have proved that the crystalline polymers usually form spherulites when they are crystallized from the melt. Therefore, the process from drawing to forming fibers is likely to be related to the spherulite deformation. However, many authors have studied the effects of spherulites Deformation and fiber structure are not noticed this point, they only study the fiber structure and spherulite deformation, without further study them together, so the results obtained from the study of fiber is difficult to explain, for example, Why is there still a complete spherulite in the orientation fiber? Why is there a lot of holes in the fiber? What are the structural elements in the brazing fiber? And how does the structure in the fiber move from the frit