Thermomechanical Analysis (TMA)

TA INSTRUMENTS TMA Q400

TA INSTRUMENTS TMA Q400
Picture1TA INSTRUMENTS TMA Q400 - Graph1
Figure shows coefficient of thermal expansion (CTE) of Printed circuits
TA INSTRUMENTS TMA Q400 - Graph2
Figure Shows expansion and penetration probe measurements of Tg and softening point of a synthetic rubber using a temperature ramp at constant force

Sample Requirements

Maximum Sample Size

  • Solid:  26 mm (L) x 10 mm (D)
  • Film/fiber: 26 mm (L) x 0.5 mm (T) x 4.7 mm (W)

Summary of Technique

  • TMA measures the dimensional changes of a sample as a function of temperature or time while it is subjected to defined mechanical stress or load under conditions of controlled force and atmosphere.
  • The modes of measurements includes Compression, Expansion, Penetration, Tension and 3-Point Bending

 

Information Provided & Detection Limits

  • Dimensional Changes
  • Expansion coefficient
  • Expansion and Shrinkage
  • Softening
  • Young’s modulus
  • Sensitive Tg information as compared with DSC
  • Foaming and Swelling characteristics
  • Creep behavior
  • Phase transitions Curing
  • Thermal stability (oxidation, decomposition, delamination)

Detection Limits

  • Temperature Range (max):   -80 to 1,000°C
  • Temperature Precision + /- 1°C
  • Measurement Precision +/- 0.1 %

-Sensitivity 15 nm and Frequency 0.01 to 2 Hz

-Force Range 0.001 to 1 N and  Resolution 0.001 N

Lab Location and Contact Information

Location:  Thermal Analysis, Rheology, and Polymer Processing Lab
Point of Contact: Dennis Ndaya
dennis.ndaya@uconn.edu
860-486-4075