TGA Testing And Analysis

Thermogravimetric Analysis (TGA) of Plastics, Rubbers/Elastomers. Polymers and Composites.

Introduction:

The Thermogravimetric Analyzer (TGA) is a very important advanced instrument used for material characterization. TGA is used for materials testing/plastic testing/ rubber testing / polymer testing needed in various environmental, food, pharmaceutical, and petrochemical and polymer/plastic / rubber / composite applications. Thermogravimetric analysis or Thermal Gravimetric Analysis (TGA) can help us in determining the moisture content/Volatiles, inorganic, organic components, additives, decomposition points and degradation temperatures. In TGA analysis of plastics/rubber/polymer/any material, mass loss with respect to the temperature is measured with an advance inbuilt thermobalance which can go as high as up to 1100C.

Working/Principle:

Thermogravimetric Analysis / TGA Analysis is a technique  wherein the mass loss of a material is measured as a function of temperature or time. During TGA testing the sample specimen is subjected to a controlled temperature program in a controlled atmosphere either in Nitrogen or Oxygen or Air.

A TGA mainly comprises of a sample pan that is held on by an ultra precision thermo balance. That pan is surrounded in a furnace and is heated or cooled during the experiment. The mass of the sample is measured during the testing. A sample purge gas controls the sample environment. This gas may be inert or a reactive gas that flows over the sample and exits through an exhaust. During TGA testing of Plastics/rubber/polymer/composites, Chemical reactions, such as combustion, involve mass losses, whereas physical changes, such as melting, do not.  The sample mass loss is plotted against temperature or time axis to present the thermal transitions in the plastics Plastics/rubber/polymer/composites – such as Volatile loss, Moisture loss, polymer burning loss and finally, decomposition of the material.

1.2 Application:

Typical TGA on Plastics/rubber/polymer/composites applications include:

• Filler content of polymer resins
• Volatile  Organic  Content (VOCs)
• Carbon black content
• Decomposition temperature
• Moisture content
• Plasticizer content in polymers
• Oxidative stability
• Performance of stabilizers
• Low molecular weight monomers in polymers

1.5 THERMOGRAVIMETRIC ANALYSIS (TGA)

We at FAN SERVICES – Advance Materials Testing and Research Lab can help you with advanced Plastics/rubber/polymer/composites testing and can help you in solving your plastic related problems. Our TGA Testing instruments are worldclass completely automized with Smaple Robots and can provide you with the highest level of accuracy in TGA plastic testing. FAN SERVICES has been in the field of materials testing since 1980 and our decades of dedicated plastic testing experience can certainly help you. In the past we have provided plastic TGA Testing lab services to many national and international clients from around the world including clients from Mumbai, Pune, Nashik, Aurangabad, Nagpur, Ahmedabad, Rajkot, Sanand, Vadodara, Vapi, Daman and Diu, Chennai, Hyderabad, Bangalore, Coimbatore, Delhi, Kolkata, Indore, Vijaywada, Gurgaon, Chandigarh and Thiruvanantapuram in India.