Glass Transition Temperature Test

Glass transition temperature (Tg) testing to assist quality control and for research and development

Thermal glass transition analysis tests materials for their glass transition temperature (Tg). Materials tested for Tg by Intertek include polymers, glasses, thermo-plastics, co-polymers, gels, composites, amorphous metals, proteins, sugars, rubber, pharmaceuticals, adhesives, chemicals and many other products.

Differential Scanning Calorimetry (DSC) techniques measure glass transition temperature (Tg). The Tg parameter can also be determined using DMA (Dynamic mechanical Analysis) or TMA (Therm-mechanical Analysis) depending on the sample.

The glass transition of a material marks the temperature below which amorphous materials behave as a glassy solid and above which the same materials behave as if they are liquids or in a rubbery state. Physical property changes are measured by the thermal properties labs to help clients determine a material's suitability for specific intended usage.

Properties that are affected by the value of glass transition analysis include material hardness (glassy materials are harder than rubbery ones), volume, modulus and percent elongation-to-break.  

 
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