Abstract
In the fabrication of components with thermosetting polymers, an essential step is the proper optimization of the cure cycle. In the early phases of the cure the polymer must have the appropriate flow properties to assure the proper wetting, spreading, and forming. It must then harden without excessive build up of residual stresses and flaws or the loss of adhesion at any interfaces that are present. To complicate the situation further, many applications such as composites, adhesives, paints, and protective coatings involve thin films whose cure behavior is significantly different than that for bulk samples. To help address this problem, an ultrasonic shear wave propagation technique has been developed. It is a laboratory device that measures the dynamic shear properties of a thin film in a way which is both nondestructive and nonperturbing to any chemical reactions that may be occurring. The applicability of this test method was demonstrated with cure studies on two model systems: one based on tung oil the other based on an epoxy resin.
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References
A.J. Barlow, G. Harrison, J. Richter, H. Sequin and J. Lamb, Electrical Methods for the Viscoelastic Behavior of Liquids under Cyclic Shearing Stress, Lab. Pract., 10, 786, 1961.
W.P. Mason, W.O. Baker, H.J. McSkimin and J.H. Heiss, Measurement of Shear Elasticity and Viscosity of Liquids at Ultrasonic Frequencies, Physical Review, 75, 936, 1949.
C.J. Knauss, D. Leppo and R.R. Myers, Viscoelastic Measurement of Polybutenes and Low Viscosity Liquids Using Ultrasonic Strip Delay Lines, J. Polym. Sci., Symposium No. 43, 179, 1973.
D.L. Huriston, R.R. Meyrs arid M.B. Palmer, A. Layered Waveguide Technique for Determination of the Viscoelastic Properties of Liquids and Deformabel Solids, Trans. Soc. Rheol., 16, 33, 1972.
D.L. Hunston, C.J. Knauss, M.B. Palmer and R.R. Myers, Viscoelastic Measurements of Poly(dimethylsiloxanes) and Polystyrene Solution Using the Layered Waveguide Technique, Trans. Soc. Rheol., 16, 45, 1972.
D.L. Hunston, Determination of Viscoelastic Constants for Polymers Using Non-Dispersive Strip Delay Lines, Ph.D. Dissertation, Kent State University, Kent, Ohio, 1969,
I. Koh, An Ultrasonic Method for Measurement of Viscoelastic Properties of Polymeric Solutions, Ph.D. Thesis, Rensselaer Polytechnic Institute, Troy, New York, 1977.
T.R. Meeker and A.H. Meitzler, Guided Wave Propagation in Elongated Cylinders and Plates, in “Physical Acoustics,” Vol. 1, W.P. Mason, ed., Academic Press, New York, 1974.
J.E. May, Jr., Precise Measurement of Time Delay, I.R.E. Convention Rec., 6, Part 2, 134, 1958.
E.P. Papadakis, Ultrasonic Phase Velocity by the Pulse-Echo- Overlap Method Incorporating Diffraction Phase Corrections, J. Acoust. Soc. Am., 42, 1045, 1967.
D.L. Hunston, J.L. Rushford, W.R. Newitt and B.A. Vaudreuil, Rheology of Cure for Intaglio Printing Inks, Organic Coatings and Plastics Preprints, 47, 513, 1982.
A.K. Banthia, I. Yilgor, J.E. McGrath and G. Wilkes, Bis-Methacryloxy Bisphenol-A Epoxy Networks, Polymer Preprints, 22, (1), 209, 1981.
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© 1983 Plenum Press, New York
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Hunston, D.L. (1983). Cure Monitoring of Thermosetting Polymers by an Ultrasonic Technique. In: Thompson, D.O., Chimenti, D.E. (eds) Review of Progress in Quantitative Nondestructive Evaluation. Library of Congress Cataloging in Publication Data, vol 2A. Springer, Boston, MA. https://doi.org/10.1007/978-1-4613-3706-5_114
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DOI: https://doi.org/10.1007/978-1-4613-3706-5_114
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