Rheometric studies of functional polyurethane foam composite
Date of Original Version
A rheometric characterization of the functional Polyurethane (PU) foam composite with and without solid additives (aluminum flakes) were experimentally measured using a computer controlled mechanical spectrometer (rheometer) ARES-G2. It is determined that PU composite exhibits a strong time thickening and shear thinning behavior. The rheological behavior of this composite can be described with the power-law generalized non-Newtonian fluid model. The rheometric tests showed that the PU/Al mixture exhibits thermal thickening and shear thinning behavior with the yield stress. The system can be described with the power-law generalized non-Newtonian fluid (Ostwald-de-Waele) model. The effective viscosity of PU composite increases with both the testing time (exponentially) and the solid content (polynomial) in the mixture.
ASME International Mechanical Engineering Congress and Exposition, Proceedings (IMECE)
Bakhtiyarov, Sayavur I., Jimmie C. Oxley, James L. Smith, Philipp M. Baldovi, and Dennis A. Siginer. "Rheometric studies of functional polyurethane foam composite." ASME International Mechanical Engineering Congress and Exposition, Proceedings (IMECE) 7, (2017). doi:10.1115/IMECE2017-72547.