Testing Rheology & Viscosity in Practice

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?

Get a participation certificate on joining the Live Online Course!

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

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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 - Interact live/ ask questions directly from the expert!

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

Have a query? Email us for any help!

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Want to put principles to practice?
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Join part 1 ‘Rheology & Viscosity Made Easy’. Neil Cunnigham will help you:

• Manage the rheological profile of your product
• Get a grip on rheology by linking
• Ease your viscosity adjustments with practical examples

Add ‘part 1’ & get 10% off
use code: COMBO10