EFFECT OF ACIDIFICATION TREATMENT ON THE PROPERTIES OF CARBON
NANOFIBERS AND COMPOSITES

Abstract

Abstract:

Concentrated acidification (vitriol/nitric acid) method was applied to the surface treatment of carbon nanofibers (CNFs).The carbon nanofibers/epoxy resin composites were fabricated under hydrothermal and ultrasonic conditions.Xray photoelectron spectroscopy analysis showed that hydroxyl and carboxyl functional groups，which could participate in the cure reaction of epoxy resin，were introduced into the surface of carbon nanofibers after acidification treatment.Rheology properties tests indicated that the fluidity of composite fluid was improved.Results of fracture toughness tests and scanning electron microscope (SEM) exhibited that the interface combination between the carbon nanofibers and the resin was effectively improved and the fracture toughness of composites was remarkably increased after acidification treatment.

CLC Number:

TB383
TB332

MEI Qi-Lin, Yuan-Lu, Wang-Ji-Hui, Huang-Zhi-Xiong. EFFECT OF ACIDIFICATION TREATMENT ON THE PROPERTIES OF CARBON
NANOFIBERS AND COMPOSITES[J]. Fiber Reinforced Plastics/Composites, 2009, 209(1): 23-27.

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