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The Universal Selection Source:
Plastics & Elastomers
Online Course

Testing Rheology & Viscosity in Practice

57 Days left to register

Tuesday Feb 5, 2019

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.

Read the full Course Outline

Neil Cunningham Presented By:
Neil Cunningham

Length: 90 min

Course Type: Formulation
Level: Beginner

Next Session: Feb 5, 2019
10:00 a.m. (New York City)
4:00 p.m. (Paris)

Check your local time

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Why should you attend?

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. Join this course now and:

  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 attend?

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 this session:
  1. Introduction
    • What is rheology?
    • What are structured fluids and viscoelastic materials

  2. The Rheologist’s Toolkit of Parameters: : Identifying the information critical to your products and processes
    • Structure Parameters:
      1. Phase Angle
      2. Complex Modulus
      3. Elastic and Viscous Moduli
      4. Compliance
      5. Zero-shear Viscosity
    • Yield / Recovery Parameters:
      1. Yield Stress
      2. Yield Strain
      3. Thixotropic Breakdown Rate
      4. Thixotropic Recovery Rate
    • Flow Parameters:
      1. Viscosity at Relevant Shear Rate
      2. Infinite Shear Viscosity
      3. Viscosity-profile Parameters

  3. Understanding viscoelasticity and the concept of elasticity in liquids
    • Definition of "solidity" / elasticity
    • How to measure "solidity": the oscillation technique
    • Viscoelastic parameters explained
      1. Comparing food products: Hotdog mustard vs cream cheese
      2. Comparing topical products of varying “stiffness”: Ointment, lotion & cream
      3. Viscoelasticity and timescale

  4. Back to the Rheologist’s Toolkit: what have we learnt?

  5. 30 Mins Q&A session- ask your questions directly to the expert !

The concepts will be presented in an accessible style, without the fearsome equations that often dominate the published literature on the subject.

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Want to put principles to practice?
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Join our course ‘Testing Rheology & Viscosity in Practice’. Neil Cunnigham will help you:
  • Choose the appropriate rheology and viscosity test method
  • Interpret and quantify results
  • Understand concepts with practical examples…
Find out more here

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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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