Engineering Research Equipment: A Controlled-Strain Rheometer with Rheo-Optical Capabilities to Study the Dynamics of Complex Fluids

CTS-9625468 Wirtz这是一笔购买具有流变光学能力的控制应变流变仪的拨款，用于研究复杂流体的动力学。该装置能够进行稳态、瞬态和动态测量。机械测量将与流变光学测量（即二色性和双折射）同时进行。流变仪将补充目前使用的实验技术。该设备将用于广泛的主题，包括将可调微观结构与磁性胶体悬浮液的粘弹性特性联系起来，比较通过流变学和光散射技术测量的囊泡的粘弹性特性，以及研究各种流体的流变特性，包括剪切聚电解质溶液、高应变润滑剂和表面活性剂-聚合物混合物。

CTS-9625468 Wirtz This is a grant to purchase a controlled-strain rheometer with rheo-optical capabilities to study the dynamics of complex fluids. This device is capable of making steady, transient and dynamic measurements. Mechanical measurements will be conducted simultaneously with rheo-optical measurements (i.e. dichroism and birefringence). the rheometer will compliment the experimental techniques currently used. The equipment will be used for a broad range of topics that include relating the tunable microstructure with the viscoelastic properties of magnetic colloidal suspensions, comparing the viscoelastic properties of vesicles as measured by rheometry and light scattering techniques and the study of the rheological properties of a wide range of fluids including sheared polyelectrolyte solutions, highly strained lubricants and surfactant-polymer mixtures.