Journal
POLYMER COMPOSITES
Volume 40, Issue -, Pages E920-E927Publisher
WILEY
DOI: 10.1002/pc.25100
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Funding
- Open Project Program of High-Tech Organic Fibers Key Laboratory of Sichuan Province [PLN2016-06]
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, Donghua University [PLN2016-06, LK1602]
- National Natural Science Foundation of China [51603120, 11604204]
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The effect of supercritical carbon dioxide (ScCO2) treatment with acetic anhydride (AA) for Kevlar fabric on the interfacial adhesion and mechanical properties of Kevlar fabric/epoxy composites was investigated. ScCO2 treatment with AA remarkably affects the interfacial adhesion, thus improving mechanical properties. The effects of treating time on the surface modification and mechanical properties of composites were studied. Results demonstrated that the optimal condition is 100 degrees C at 10 MPa for 60 min, as shown by the tensile strength and shear strength of the ScCO2-treated composites being 21.3 and 47.9% higher than those of the untreated ones, respectively. The mechanical properties demonstrated that ScCO2 treatment provides an efficient and environmentally safe method for surface modification to improve interfacial interaction between the treated fiber and matrix with ScCO2 treatment. POLYM. COMPOS., 40:E920-E927, 2019. (c) 2018 Society of Plastics Engineers
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