Last week, we hosted a webinar on the Weissenberg-Rabinowitsch-Mooney Correction, also known as WRM correction. What is this correction? When you are using a viscometer to measure viscosity of a liquid, there is more than just one number that comes out. Using a viscometer, you can determine if your sample is Newtonian or non-Newtonian.
A Practical Guide for Calculating the Injection Force from Viscosity Measurements - The long awaited recording is ready! Download our recent webinar that we hosted last week.
You may have followed many of our injectability application notes and webinar sessions where we began to explain the concept of calculating injection rates. Our next webinar this coming month on November 20, 2019 at 11:00 am PST will actually be a hands-on live workshop where we will start from scratch on how to approach the calculations to injection rate, figuring out which shear rates to run, and ultimately designing your experiments with the real application in mind.
Measuring viscosity at a single and arbitrary shear rate provides limited information which can be difficult to interpret. A much more thorough understanding of a formulation is obtained by measuring the shear rate dependence. In addition to the practical relevance of predicting the behavior during application or processing, the details of a non-Newtonian response reflect the molecular interactions and resulting microstructure at therapeutic levels. Even protein solutions at moderate concentrations can exhibit a Newtonian plateau followed by a shear thinning region illustrating the importance of non-hydrodynamic forces and degree of structure formation.
Last Wednesday, we hosted a new technical webinar where we focus on differentiating low viscosity fluids. If you were unable to attend or would like to access the recording and presentation again, you can now access the full recording.
We recently hosted a webinar where we went into details on viscosity measurements used as a guide when it comes to formulation development and the recording is now ready!
One of the most commonly asked questions from our customers is the topic of shear rates and what to expect when dealing with various applications. Now most of you have a general idea on what shear rate means, but we want to take it one step further and illustrate several key components when dealing with shear rates.