J Mater Sci Technol ›› 1993, Vol. 9 ›› Issue (6): 423-426.

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Plasma Modified Polyaramid Fiber Surface and Fiber/Epoxy Interface

Chunxin ZHANG Shijiu JIN Yunzhao YU Institute of Chemistry,Academia Sinica,Beijing 100080,China   

  • Received:1993-11-28 Revised:1993-11-28 Online:1993-11-28 Published:2009-10-10

Abstract: Kevlar-49 fiber was surface-modified through cold air plasma treatment and plasma grafting of acrylic acid (AA).Fiber surface properties were studied with ESCA,while interface properties with a single fiber pull-out (SFPO) test.The stated surface modifications evidently improved the interfacial adhesion and increased the interfacial fracture energy of the aramid/epoxy composite system.

Key words: polyaramld tiber, plasma, surtace gratting, SFPO