MindMap Gallery Rheological properties of polymer materials
Rheological properties are crucial characteristics of polymer materials during processing and use, encompassing viscosity measurement, flow behavior, elasticity, and temperature effects. Viscosity measurement, using methods such as rotational viscometers and capillary viscometers, is essential for controlling flow behavior in polymer processing. Flow behavior is classified into Newtonian and non-Newtonian fluids, with non-Newtonian fluids exhibiting viscosity changes with shear rate. Elasticity is characterized by storage modulus and loss modulus, measurable through dynamic mechanical analysis (DMA). Temperature significantly affects rheological properties, such as viscosity decreasing with temperature and the influence of glass transition temperature on material performance.
Edited at 2025-01-12 12:17:52