Is the rheometer capable of testing re-grinding material?
Yes, the capillary rheometer is indeed capable of testing regrind materials. In fact, it is usually of the utmost importance that the regrind material be tested to ensure that the material is still thermally stable and has some minimum flow characteristics for the process for which it is selected. The rheometer is also used to optimize the ratio of regrind to virgin material for the best cost/performance model.