Relaxation and retardation time for polymeric liquids

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SUMMARY

The discussion focuses on the typical values of relaxation and retardation time for polymeric liquids, specifically mentioning materials such as blood and cervical mucus. Participants emphasize that these time scales are influenced by various factors, including the material's composition and environmental conditions. The conversation highlights the need for reliable references to clarify the definitions and ratios of relaxation and retardation times for different substances.

PREREQUISITES
  • Understanding of polymer physics
  • Familiarity with rheological properties
  • Knowledge of material science concepts
  • Basic grasp of fluid dynamics
NEXT STEPS
  • Research the definitions and differences between relaxation time and retardation time in polymeric materials
  • Explore rheological measurements for blood and cervical mucus
  • Investigate the impact of temperature and shear rate on relaxation and retardation times
  • Review scientific literature on the viscoelastic properties of biological fluids
USEFUL FOR

Researchers in polymer science, material scientists, and professionals studying the rheological behavior of biological fluids will benefit from this discussion.

hanson
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Hi all, I am wondering what the typical values of relaxation and retardation time for different real materials?
I know these times depend on quite a number of things.
But I just want to have a sense of the ratio of the two time scales for different real materials like blood, cervical mucus and other materials...

Do you have some good references for these data? I am kind of confused when I search online about it.
 
Chemistry news on Phys.org
What do you mean by relaxation time and retardation time?
 

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