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Principle

Thermal and Rheology, IV

Capabilities

Equipment: Thermal


Equipment TypeInformation

Differential Scanning Calorimetry 

  • Differential Scanning Calorimetry measures heat flow as a function of time or temperature

    • ASTM D3418; -90°C to 550°C in N2 
    • Tm, Tc, Tg, percent crystallinity, heats of fusion and crystallization, rate and degree of cure, specific heat capacity

Thermogravimetric Analysis 

  • Thermogravimetric Analysis measures mass change as a function of time or temperature

    • ASTM E1131 up to 1000°C in N2 or air
    • Compositional analysis, thermal stability, decomposition kinetics, filler content

Thermomechanical Analysis

  • Thermomechanical Analysis measures dimension change as a function of time, temperature, or force

    • ASTM E831 and ISO 11359; -70°C to 1000°C
    • Coefficient of linear thermal expansion

Dynamic Mechanical Analysis 

  • Dynamic Mechanical Analysis mechanically deforms samples and measures response with respect to frequency, stress, strain, time, or temperature

    • TA Instruments ARES-G2 Rotational Rheometer - Parallel plate, torsion, 3 point bend, and films
    • Forced convection oven up to -150°C to 600°C
    • Viscoelastic properties, storage modulus, loss modulus, Tg, cross-linking, lifetime predictions

Thermal Conductivity

  • Thermal Conductivity measures materials ability to conduct heat

    • ASTM E1461 Thermal Diffusivity by Laser Flash


Equipment: Rheology

Wide range of techniques for measuring flow behavior of materials

Equipment TypeInformation

Melt Flow Indexer

  • Melt Flow Indexer measures relative ease of flow and rate of extrusion

    • ASTM D1238 and ISO 1133 Procedures A and B
    • Melt flow rate, melt volume rate, melt density
    • Capability to measure up to 425°C

Capillary Rheometer
  • Capillary Rheology measures shear viscosity and flow behavior
    • ASTM D3835 and ISO 11443
    • Apparent shear viscosity and melt stability as a function of time, temperature, or shear rate
    • Capability to measure up to 450°C

Solution Rheometer
  • Solution Rheology measures polymer solution viscosity as a function of time or shear rate with a concentric cylinder

Dilute Solution Viscosity

  • Dilute Solution Viscosity  measures inherent viscosity of polymer solutions

    • ASTM D5225 - Differential pressure viscometer
    • ASTM D2857 - Glass capillary viscometer

Mission

Thermal and Rheology, IV is our mission.

Techniques

Thermal and Rheology, IV

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Team

Thermal and Rheology IV Labs

Contact

Ext

Office

Todd Murphy

Research Scientist

Thermal Lab & Rheology, IV Lab

T: 770-772-8693

M: 470-955-3399

Office E2083

Lab E1102, E2104


Thermal Lab

Contact

Ext

Office

Valencia Anderson

Thermal QC

770-772-8956

Lab E1102

Laura Sanders

Thermal

770-772-8327 

Lab E1102 

Cubical E1086.6

Jianzhen Zhang

Thermal

770-772-8919

Lab E1102


Rheology, IV Lab

Contact

Ext

Office

David Addington

Rheology & IV

770-772-8780

Lab E2104 

John Kim

Rheology & IV

 

Lab E2104 

Cubical E1030.7

Jacob McClain

Rheology & IV

770-772-8349

Lab E2104







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