Resin Molding and Rheology, Lecture 10: "Representation of Viscosity's Temperature Dependence"
Introducing representative model equations! It is common to incorporate temperature dependence of viscosity in viscosity equations used in CAE!
When a liquid tries to change shape, resistance due to intermolecular forces arises, and this magnitude becomes viscosity. As the temperature rises, the molecular motion of the liquid becomes more active, and since the molecules want to move freely, viscosity decreases. In the plastic molding process, the temperature of the resin changes significantly, so viscosity is greatly affected by this. Therefore, it has become common to incorporate the temperature dependence of viscosity into the viscosity equations used in CAE. In this column, we will introduce representative model equations. [Contents] ■ Andrade's equation ■ WLF (Williams, Landel, Ferry) model equation *For detailed content of the column, please refer to the related links. For more information, feel free to contact us.
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