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Abstract

Chemical degradation of aramid/epoxy composites to the recycle of aramid fibers is presented in this article. 1,2,3,4-Tetrahydronaphthalene served as the main solvent decomposes the epoxy matrix and the virgin fibers are released under different decomposition conditions. The influence of reaction time, temperature, and feedstock ratio on the decomposition rate is investigated to ascertain the optimum condition of this recycle process. Gas chromatography mass spectrometry (GC-MS), single fiber tensile strength, and scanning electron microscope (SEM) are used to characterize the recycled fibers respectively, illustrating that aramid/epoxy composites can be decomposed successfully with this chemical method on the experimental condition. The hydrogenative mechanism of epoxy resin is also discussed tentatively according to the experimental result.

Keywords

epoxy resin hydrogenation chemical recycle.

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The Experimental Research on Recycling of Aramid Fibers by Solvent Method

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