The Universal Selection Source: Cosmetics Ingredients

Online Course

Testing Rheology & Viscosity in Practice

This is a Past Course

Recorded on Feb 2, 2017

Generate relevant and useful rheological data to support your developments by selecting the right rheology test (controlled rate or shear, rotational or oscillatory...) & interpreting test results correctly.

Neil Cunningham will guide you through the vast range of methods and equipments available, share pros & cons and practical considerations to help you determine the one most suited for you.

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Neil Cunningham Presented By:
Neil Cunningham

Length: 90 min

Course Type: Formulation
Level: Beginner

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.wmv Courses Recording, Presentation Slides & Transcript of Q&A session

Why should you view this course?

With the range of viscometer and rheometer methods available to the typical lab worker it is little wonder selecting equipment and developing and validating a test method for R&D or QC can be a daunting task. Methods ranging from simple spindle viscometer methods to sophisticated and powerful rheological profiling and characterization are within the reach of most labs now but the wrong choice of test method, or the incorrect interpretation of the results, can render a test virtually useless with costly consequences.

  1. Gain in competitiveness by better describing your product flow behavior (Zero-shear viscosity, thixotropic recovery rate...)
  2. Save time in selecting your equipments (simple viscometer, mid-range rheometer...) by understanding their benefits and drawbacks
  3. Generate finer rheology data by knowing the best method to use – Controlled rate or stress? Rotational or oscillatory ?...
Testing rheology in practice

Who should view this course?

Formulators, QC managers & technicians and Process developers with a need to improve their approach to rheology and viscosity testing.

Course Outline

The following sections will be covered during the session:

1. The needs of industry: research, product development, process design and quality control

2. The Rheologist’s Toolkit: Critical parameters for characterising your products

3. Rheometers and viscometers: the key differences: cost, capability, performance and ease of use

– Controlled stress and “high performance” rheometers
– Brookfield-type spindle viscometers
– Accessories: Cones, plates, cylinders etc

4. Rheology and viscosity test methods: An examination of the pros and cons of procedures for testing suspensions, emulsions, solutions and gels
– Viscosity profiling methods
– Obtaining repeatable and relevant viscosity values
– Quantifying yield stress and thixotropy
– Oscillatory test methods for viscoelastic profiling

5. Tips for buying a rheometer or viscometer

In this course real practical examples will be discussed.

If you want to master rheology, you can also watch this course.

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Members Reviews

It provides an opportunity to learn how to properly set up my rheological component to our operations.

Adam B. , from OneSun, Inc.

Excellent! It explained a very broad subject in a very simple approach. It covered many areas we are currently dealing with.

Gustavo B. , from Lorama Inc

Made me think about the data I have generated and whether more information was present in the curves than I realized.

Laura S. , from Energizer Personal Care

There were very good examples of when the various measurement techniques would be used for different applications.

Jennifer B. , from Honeywell

I knew nothing about rheology before the course. Now I have lots of ideas of how I could use rheological tests to understand my material and how to use rheology parameters as targets for development. I now understand concepts of zero shear viscosity, yield stress, infinite shear viscosity, and models for these values.

Chris H. , from USDA Forest Products Lab

Taking a rather complex topic and presenting it in a simplified uncomplicated way enables all levels of users to benefit. We had in our group technicians, mid-level, as well as PhD's who equally enjoyed the clear, concise and simplified presentation.

Herbert C. , from Cray Valley USA LLC

Helped to better understand what we are measuring with which rheometer. I can now measure more than just viscosity.

Christelle M. , from Interpolymer

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