Glass Transition Temperature Approximation (Fox Equation)
Calculates the glass transition temperature of a polymer blend using the Fox equation, based on the individual component glass transition temperatures and their mass fractions.
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1. Define Input Parameters
2. Engineering Output
Glass Transition Temperature Component 1 (Kelvin) (Tg1_K)
- K
- K
Glass Transition Temperature Component 2 (Kelvin) (Tg2_K)
- K
- K
Inverse Glass Transition Temperature of Blend (Kelvin^-1) (Tg_blend_K_inverse)
- K^-1
- K^-1
Glass Transition Temperature of Blend (Kelvin) (Tg_blend_K)
- K
- K
Glass Transition Temperature of Blend (Celsius) (Tg_blend_C)
- °C
- °C
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Download Offline Excel CalculationContext & Assumptions
The Fox equation provides a rapid, single-parameter estimate for the glass-transition temperature (Tg) of a miscible polymer blend. This calculation is crucial in process engineering for determining minimum film-formation temperatures, maximum service temperatures, and appropriate storage conditions. It is widely applied in reactor design, extrusion, and solvent-borne formulation workflows.
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