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Differential scanning calorimetry can be used to measure a number of characteristic properties of a sample. Using this technique it is possible to observe fusion and crystallization events as well as glass transition temperatures Tg. DSC Thermal analysis can be used in conjunction with FTIR analysis to identify many types of polymers. Each Polymer has a melt point or a glass transition temperature, depending on what that is, we can identify the make up of the polymer. It can also be used to quantify the individual polymers present in a copolymer and also the percentage of each polymer in the copolymer can be estimated.

Thermal Gravimetric Analysis (TGA)

tga

TGA thermogravimetric capabilities:

  • Compositional analysis of materials
  • Decomposition temperatures
  • Rate of degradation
  • Product lifetimes
  • Oxidative stability
  • Evaluation of polymer flammabilities
  • Thermal stabilities
  • Determination of rancidity of edible oils
  • Fingerprinting unknown polymers
  • Moisture Content
  • Volatile Organic Compounds (VOC) analysis
  • Analysis of evolved gases using TGA/FTIR
  • Competitive product evaluation

TGA measures the amount of weight change of a material, either as a function of increasing temperature, or isothermally as a function of time, in an atmosphere of nitrogen, helium, air, other gas.
Thermal gravimetric analysis can be interfaced with FTIR to identify the vapors generated.
Inorganic materials, metals, polymers and plastics, ceramics, glasses, and composite materials can be analyzed.

Temperature range from 25°C to 900°C routinely. The maximum temperature is 1000°C.
Sample weight can range from 1 mg to 40 mg. Sample weights of more than 25 mg are preferred, but excellent results are sometimes obtainable on 1 mg of material.
Weight change sensitivity of 0.01 mg.
Samples can be analyzed in the form of powder or small pieces so the interior sample temperature remains close to the measured gas temperature.