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纤维结构形态的原位同步辐射X射线散射及衍射研究
In Situ Synchrotron Radiation X-Ray Scattering and Diffraction Measurement Studies on Structure and Morphology of Fibers
采用传统的X射线检测研究纤维,只能得到静态的结构信息。原位X射线检测,自从这一概念被提出以来就得到了广泛的关注和迅速的发展。与传统的X射线检测技术相比,原位检测可以准确直接地反映材料内部结构的形成和演化过程。同步辐射光源高亮度、高准直等优异特性,可以发挥原位检测高时间、空间分辨的优势,可以在短时间内研究材料动力学变化过程,精确揭示材料微观尺度结构。本文结合国内外研究者的工作以具体研究为例,介绍了应用同步辐射光源对纤维所进行的一些原位X射线检测研究,包括纤维的成型过程以及拉伸等后处理过程。
Fiber is the complex system consisting of diverse microscopic structures with the complicated changing law. The formation of artificial fibers is the multi-component, nonequilibrium and nonlinear process. While only static structure information of fibers can be obtained by using the traditional X-ray measurement technique. In order to take a deep look into the formation and evolution process of materials' structure during the processing and using procedure, a novel research method with high time and space resolution should be established. In situ X-ray measurement technique has received wide attention and developed rapidly since it was brought forth firstly. Compared with the traditional X-ray measurement technique, in situ measurement can detect the process of structure's formation and evolution in a more direct and precise way. Because of the outstanding characteristics of high brightness, high collimation degree of synchrotron radiation, the advantages like high time resolution and high space resolution of in situ X-ray measurement by using synchrotron radiation can be fully exploited to reveal the dynamic evolution process and microscopic scale structures of materials. In this review, combined with the domestic and international researchers' specific works, the research about in situ X-ray measurement of fibers with the application of synchrotron radiation was introduced, including the process of fibers' formation and drawing of post-treatment.
Contents
1 Introduction
2 In situ studies on process of fiber formation
2.1 In situ studies on melt-spinning process of fibers
2.2 In situ studies on other methods of spinning process
3 In situ studies on post-treatment process and stretching process of fibers
3.1 High performance fibers
3.2 Conventional fibers
3.3 Natural fibers
4 In situ studies on other aspects
5 Conclusions
纤维
fibers
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