Investigation of the Moisture-Desorption Characteristics of Epoxy Resin |
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| Authors: | Y. C. Lin |
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| Affiliation: | (1) School of Mechanical and Electrical Engineering, Central South University, Changsha, 410083, P.R. China |
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| Abstract: | Moisture-diffusion characteristics, which include weight changes, hygrothermally induced expansion, diffusion coefficients, and activation energy, have been investigated for epoxy resins. The experimental results show that hygroscopic swelling behavior of the epoxy system is consistent; it increases with temperature and decreases sharply at approximately 135°C. Desorption from high moisture saturation tended to leave a small residual moisture content which could be removed only by heating at relatively high desorption temperatures. Further interpretation of this phenomenon are discussed on the basis of experimental results and molecular dynamics (MD) simulations. |
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| Keywords: | epoxy system hygrothermal conditions activation energy molecular dynamics simulations |
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