聚合物的多轴复合变形与原位小角和广角X射线散射技术
Combined multiaxial deformation of polymers with in situ small angle and wide angle x-ray scattering techniques.
作者信息
Gurun B, Thio Y S, Bucknall D G
机构信息
School of Polymer, Fiber, and Textile Engineering, Georgia Institute of Technology, Atlanta 30332, USA.
出版信息
Rev Sci Instrum. 2009 Dec;80(12):123906. doi: 10.1063/1.3272782.
A unique multiaxial deformation device has been designed and built specifically for simultaneous synchrotron small angle x-ray scattering (SAXS) and wide angle x-ray scattering (WAXS) measurements. The device can operate at strain rates of 0.0005-0.3 s(-1) and induce strains up to stretch ratios of 5. Measurements can either be made at ambient or at elevated temperatures (up to approximately 150 degrees C), the latter using a heating unit. The capabilities of the device coupled with simultaneous SAXS/WAXS measurements have been demonstrated by studying the morphological evolution of a number of polymers and their nanocomposites.
一种独特的多轴变形装置已专门设计并制造出来，用于同步进行同步加速器小角X射线散射（SAXS）和广角X射线散射（WAXS）测量。该装置可在0.0005 - 0.3 s(-1)的应变速率下运行，并能产生高达5的拉伸比的应变。测量既可以在环境温度下进行，也可以在高温（高达约150摄氏度）下进行，后者使用加热单元。通过研究多种聚合物及其纳米复合材料的形态演变，已证明了该装置与同步SAXS/WAXS测量相结合的能力。
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