Symptom: Warping

Possible Causes: What could cause this problem?

Improper formulation, incorrect processing conditions (if nothing found wrong with formulation)

Sample Testing Plan: How do you measure?

  • 1. Measure directly using single-bounce Diamond, ZnSe or Ge* ATR
  • 2. May require cutting away top surface to expose interior

*Ge for carbon-filled polymers

Data Analysis Plan: How do you identify the problem?

  • 1. Calculate peak height or area ratio
  • 2. Verify co-polymer ratios
  • 3. Adjust formulation and check ratios routinely