How to determine the melting rate, hardening rate and viscosity of plastic using furnace?

03 June 2022 1 3K Report

I want to design an experiment for measuring the melting, hardening rates of different types of plastics. The equipment that are current available includes; a closed furnace with control valve, thermocouple, infrared thermometer, crucible and stopwatch.

Mahnoor Ijaz

Melt viscosities (η) typically follow the Vogel–Tammann–Fulcher equation (VTF) with temperature: log η = A + B/(T − T0) with A, B, and T0 as fitted constants.

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