Diffusion Behavior of Ethanol in Epoxy/Urethane Acrylate Resin Interpenetrating Polymer Networks(Ⅰ)——Homogeneous Transport Model and Correlation with Experimental Sorption Curves

Abstract

Abstract: A transport-complex model has been established to correlate the experimental absorption curves of epoxy resin(epoxy) and urethane acrylate resin(UAR) simultaneous interpenetrating networks(SINs)with ethanol as the diffusion agent. The experimental results show that the simulative curves calculated can be correlated by using the complex model well enough with the experimental data in general and the physical meaning of correlating coefficient ω_r is expressed as the ability of migration of ethanol through the networks after it makes hydrogen bond with urethane, ester or ether groups existing in the networks. Consequently it directly responds to the structures and morphologies of the SINs. The parameters measured including the solubility constant S, average diffusion coefficient Dand penetrating weight Pare all related to the composition of such SINs. It clearly exhibits that ethanol mainly transports through the UARphase.

Key words: Ethanol, Transport, Epoxy resin, Urethane acrylate resin, Interpenetrating polymer network, Diffusion

CLC Number:

TQ31

TrendMD:

HUA Feng-Jun, LI Jun, HU Chun-Pu, LIU Hong-Lai, HU Ying . Diffusion Behavior of Ethanol in Epoxy/Urethane Acrylate Resin Interpenetrating Polymer Networks(Ⅰ)——Homogeneous Transport Model and Correlation with Experimental Sorption Curves[J]. Chem. J. Chinese Universities, 1998, 19(11): 1807.

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Diffusion Behavior of Ethanol in Epoxy/Urethane Acrylate Resin Interpenetrating Polymer Networks(Ⅰ)——Homogeneous Transport Model and Correlation with Experimental Sorption Curves

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