The material selection platform
Plastics & Elastomers
The material selection platform
Plastics & Elastomers
Online Course

Rheology & Viscosity Made Easy

On-Demand Course

Recorded on Feb 15, 2023

Get tangible data and directions from rheology by knowing how to translate pourability, sag resistance… into rheology targets (complex modulus, yield stress, shear rate...)

Joshua Marsh will provide a clarity around the core fundamentals without the complexity of equations, that enables efficient management of the rheological profile of your product.

Support your developments by selecting the right rheology test in practice.
Along with this course add ‘Testing Rheology & Viscosity in Practice and get 10% Off in your cart.
Use Rebate Code COMBO10

(Check out the exclusive preview now!)

Read the full Course Outline

Presented By:
Joshua Marsh

Length: 90 min

Course Type: Methodology
Level: Beginner

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Package includes:

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

Why should you view this course?

Rheology is often viewed as something of a ‘black art’ whereas, if understood well, it can provide tangible data to achieve desired performance. Clarity around the core fundamentals enables efficient management of the rheological properties of your product. Join this online rheology training and:

  1. Get a grip on rheology by linking more easily desired performance (pourability, sag resistance...) to the corresponding rheology properties

  2. Get ready for confident result interpretation by bringing G*, G', G'', tan delta values out of abstract shadow with simple, real-life phenomena association

  3. Ease your viscosity adjustments by clarifying the impact of imposed shear, shear history and temperature on your formulation
Rheology made easy

Who should view this course?

Formulators, QC managers & technicians and Process developers with a need to get more familiar with rheology basics and principles.

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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 QnA - directly answered by the expert

  6. For more questions, email us up to 3 days from the course

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? We are just a mail away!

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Want to put principles to practice?
Join Testing Rheology & Viscosity in Practice. Joshua Marsh will help you:
  • Choose the appropriate rheology testing and viscosity testing method
  • Interpret and quantify results
  • Understand concepts with practical examples…
Add ‘this course & get 10% off
use code: COMBO10

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Members Reviews

Extremely insightful rheology overview, great outline & format, good terminology & definitions, very intuitive with excellent examples!

Tom M. , from Da-Lite Screen

Presenter was excellent on teaching the fundamentals. Personally, he has set me straight on a couple of key definitions.

Benjamin Y. , from Imerys

Excellent Course! It gave a good overview with relevant, relateable examples.

Alison S. , from 3M

Loved the way the presenter explained the technical areas in very understandable terms. Great examples to understand viscous and elastic flow behaviors.

Jim H. , from Golden Artist Colors Inc.

We now understand more of rheology and how it affects our products. Learnt about why the viscosity changes and what factors affect it.

Mikael W. , from NAILS R US AB

Good explanations of rheologic terms and definitions. Very applicable information.

Amber W. , from International Paper

Excellent course! Very clear presentation, great examples!

Erica J. , from Kraton Polymers Research

Excellent! Easy explanation of the theory and useful examples.

Keith M. , from EASTMAN

Greatly aided in the development to our approach and application of rheological matters in our systems. Really helped to connect all the dots after many months of studying the field on my own, and helped me to understand the subject as a whole.

Ray B. , from Handwash Systems of the Carolinas

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