Date of Award
Fall 1986
Document Type
Thesis
Department
Mechanical & Aerospace Engineering
Program/Concentration
Mechanical Engineering
Committee Director
S. N. Tiwari
Committee Member
T. H. Hou
Committee Member
J. W. Hou
Call Number for Print
Special Collections; LD4331.E56B34
Abstract
A new analytical model for simulating chemoviscosity of thermosetting resin has been formulated. The model is developed by modifying the well-established Williams-Landel-Ferry (WLF) theory in polymer rheology for thermoplastic materials. By introducing a relationship between the glass transition temperature Tg (t) and the degree of cure a(t) of the resin system under cure, the WLF theory can be modified to account for the factor of reaction time. Temperature-dependent functions of the modified WLF theory constants C1(T) and C2(T) were determined from the isothermal cure data. Theoretical predictions of the model for the resin under dynamic heating cure cycles were shown to compare favorably with the experimental data. This work represents progress toward establishing a chemoviscosity model which is capable of not only describing viscosity profiles accurately under various cure cycles, but also correlating viscosity data to the changes of physical properties associated with the structural transformation of the thermosetting resin systems during cure.
Rights
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DOI
10.25777/ad0z-1t63
Recommended Citation
Bai, Jia-Mo.
"Chemoviscosity Modeling of Thermosetting Resins"
(1986). Thesis, Old Dominion University, DOI: 10.25777/ad0z-1t63
https://digitalcommons.odu.edu/mae_etds/409