Rod-climbing characterization of kaolinite suspended polyisobutylene solutions

The rod-climbing constants of kaolinite-suspended polyisobutylene (PIB) sol utions are investigated from rod-climbing experiments, For a low deformatio n rate, this particle suspended polymer solution can be regarded as a secon d-order fluid, and the rod-climbing constant for such fluids is correlated with the rheological properties of the particle-suspended polymer solutions . The rod-climbing constants for kaolinite suspended PIE solutions were fou nd to decrease with temperature and increase with PIE concentration, molecu lar weight of PIE, solvent viscosity, and particle concentration. The rheol ogical properties were measured using rotational. rheometer, and the shear viscosity and the first normal stress difference of the kaolinite suspended PIE solution show the Boger-fluid characteristics.