Polymer rheology testing is the study of how the stress in a material or force applied is related to deformation and flow of the material. The physical properties of polymer formulations can be described using a variety of rheological terms. Understanding the rheological properties of polymers through laboratory testing can help to optimize products and process conditions, thereby saving costs and minimizing potential waste. Rheology tests are typically performed while the polymer is in the melt phase or while the polymer has been dissolved in a solvent for intrinsic viscosity and relative viscosity.
In this white paper we discuss a case study in which rheology testing has aided the product development process of Hyaluronic acid (HA) gels to help the developers ensure that the polymer formulation properties meet specifications for the end use (texture, ease of injection and longevity of lift) and product quality.
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