From Sample Changer to the Robotic Rheometer: Automation and High Throughput Screening in Rotational Rheometry

摘要

A fully automated, robotically operated rheometer was developed. The full functionality, modularity and accuracy of the rotational rheometer are available, which means the modern principles of high-throughput screening are brought to full function on the rheometer. The basic rheometer setup remains as modular as before including the ability to run all test modes the rheometer offers with the difference that the high-throughput rheometer now performs all measuring steps automatically. In addition, the standard and proven environmental chambers of the rheometer are available. The rheometer itself runs by the standard rheometer software and the measurement data and analysis results can be transferred to a monitoring database. The sample loading and the cleaning of the geometries is assisted by a sample preparation unit and a cleaning station, respectively. The sample throughput is further maximized by the use of multiple geometries allowing the simultaneous rheological measurement by the rheometer and the cleaning of the geometries at the cleaning station by the robot. The High-Throughput Rheometer (HTR) and its special adaptation to different applications like dispersions and polymer melts are described.