Combined rheometry and small-angle x-ray scattering
Combined rheometry and small-angle x-ray scattering
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DOI：
10.1063/1.1556943
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发表时间：
2003-04-01
影响因子：
1.6
通讯作者：
Narayanan, T
中科院分区：
文献类型：
--
作者：
Panine, P;Gradzielski, M;Narayanan, T
我们开发了一种高分辨率小角度x射线散射（SAXS）同时监测流变参数的装置。该装置是基于商业流变仪耦合到同心圆柱形剪切流几何。剪切细胞可以在20度-180度范围内工作，样品没有明显的蒸发损失。该仪器在复杂流体领域有广泛的应用，如胶体悬浮液，表面活性剂相，液晶和聚合物溶液。此外，它还允许将SAXS与各种流变学测试相结合，包括简单的剪切流动、蠕变、恢复以及振荡变形。该设备的性能通过涉及剪切诱导的复杂流体排序的实验来证明。(C) 2003年美国物理研究所。
We have developed an apparatus to simultaneously monitor rheological parameters with high-resolution small-angle x-ray scattering (SAXS). The device is based on a commercial rheometer coupled to concentric cylindrical shear flow geometry. The shear cell can be operated from 20 degreesC-180 degreesC without significant evaporation loss of the sample. The apparatus has wide ranging applications in the field of complex fluids such as colloidal suspensions, surfactant phases, liquid crystals, and polymer solutions. In addition, it allows performing SAXS in combination with a wide variety of rheological tests including simple shear flows, creep, recovery, as well as oscillatory deformation. The performance of the equipment is demonstrated through experiments involving shear-induced ordering of complex fluids. (C) 2003 American Institute of Physics.