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Polymer viscosity model about Cross-WLF eqaution
Posted May 21, 2014, 8:04 a.m. EDT Fluid & Heat 3 Replies
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Hello,
I have tried to analyze the filling pattern of polymers in injection molding process with COMSOL software.
And I tried to apply the shear viscosity of the polymer to the analysis using cross-WLF equation which usually used to express the behaviors.
However, I found out that the viscosity rapidly increased when the temperature of the polymer reached glass transition temperature.
With the increasing viscosity, the analysis was failed.
I need your help with the problem.
Please let me know how I can fix the problem without the fail message.
Best regards,
I have tried to analyze the filling pattern of polymers in injection molding process with COMSOL software.
And I tried to apply the shear viscosity of the polymer to the analysis using cross-WLF equation which usually used to express the behaviors.
However, I found out that the viscosity rapidly increased when the temperature of the polymer reached glass transition temperature.
With the increasing viscosity, the analysis was failed.
I need your help with the problem.
Please let me know how I can fix the problem without the fail message.
Best regards,
3 Replies Last Post May 23, 2014, 2:49 a.m. EDT