Polymers

Because the glass transition is one of the major predictors of polymer behavior in amorphous and semi-crystalline polymers, thermal analysis is closely associated with polymers.

These include:
  • Thermoplastics – materials that can be reheated without changing
    • Glass transitions
    • Melting point
    • Crystallization behavior (controlled cooling, isothermal, on reheating)
    • Initial crystallinity by HyperDSC™
    • Overlapping transitions by MDSC™ or StepScan™
    • Heat capacity
    • Thermal Conductivity by MDSC™
    • Filler content
    • Composition (TGA and FTIR)
    • OIT
    • Modulus and damping
    • Stress, Strain and Frequency Effects
    • Time Temperature Superposition
    • CTE
  • Thermosets – materials that cure and change dramatically after heating
    • Most thermoplastic tests on cured forms
    • Degree of cure
    • Curing onset and energy
    • Relationship between degree of cure and properties
    • Viscosity profile of cure
    • Off-gassing and residual ash content
    • Residual cure
  • Rubbers and elastomers – materials with their glass transition below room temperature
    • Glass transition and other tests from above
    • Composition analysis in TGA
    • Oxidative Induction Time
    • Rheological properties from DMA

Heat-Cool-Heat Experiment on Nylon BlendPolymer 1

Rubber Composition by TGAPolymer 2