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Relationship between viscoelastic properties and gelation in thermosetting systems
Abstract
A method is described for determining from dynamic viscoelastic data the gel time of thermosetting resins. Gelation of nine systems including epoxies, acetylene‐terminated sulfone, and silicones was correlated with the crossover of the dynamic storage G′ and loss G″ moduli measured during isothermal curing. The effect of measurement frequency on gel time is discussed and related to the standard gel test. A lower temperature limit for the valid aplication of this technique was found to be at T > Tgg + 30°C, where Tgg is the glass transition of the system at the gel point.
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Citations
Cited by
Can the gel point of a cross‐linking polymer be detected by the G′ – G″ crossover?
Winter, H. H. (1987) · Polymer Engineering & Science · doi:10.1002/pen.760272209 · Cited by 785
Control of reactions and network structures of epoxy thermosets
Vidil, T., Tournilhac, F., Musso, S., Robisson, A., & Leibler, L. (2016) · Progress in Polymer Science · doi:10.1016/j.progpolymsci.2016.06.003 · Cited by 434
Dynamic oscillatory shear testing of foods — selected applications
Gunasekaran, S., & Ak, M. M. (2000) · Trends in Food Science & Technology · doi:10.1016/s0924-2244(00)00058-3 · Cited by 301
Influence of NaCl and CaCl 2 on Cold‐Set Gelation of Heat‐denatured Whey Protein
Bryant, C. M., & McClements, D. J. (2000) · Journal of Food Science · doi:10.1111/j.1365-2621.2000.tb13590.x · Cited by 140
Buwalda, S. J., Dijkstra, P. J., & Feijen, J. (2012) · Macromolecular Chemistry and Physics · doi:10.1002/macp.201100640 · Cited by 17
Metadata
- Authors
- Tung, C. M., & Dynes, P. J.
- Venue
- Journal of Applied Polymer Science
- Publisher
- Wiley
- Published
- 1982-02
- Volume
- 27
- Issue
- 2
- Pages
- 569-574
- ISSN
- 0021-8995 (ISSN-L)
- 1097-4628
- OpenAlex
- W2056400278
- Cited by
- 545
- References
- 0
- FWCI
- 9.69
- Type
- journal article
- Language
- en
- Open access
- closed
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- Tung, C. M., & Dynes, P. J. (1982). Relationship between viscoelastic properties and gelation in thermosetting systems. Journal of Applied Polymer Science. https://doi.org/10.1002/app.1982.070270220
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