The influence of surface properties on carbon fiber/epoxy matrix interfacial adhesion

Conference · Tue Dec 31 04:00:00 EST 1996

OSTI ID:441505

Zhuang, H; Wightman, J P ^[1]

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1. Virginia Polytechnic Inst. and State Univ., Blacksburg, VA (United States)

In recent years, as composites become increasingly sophisticated to meet ever-increasing performance requirements, it has become more important to control the interaction between the reinforcing fibers and matrix materials. The major challenge here is the lack of fundamental understanding and knowledge about the reinforcement/matrix system which contribute to the establishment of the interphase. It has been recognized that the state of the fiber surface substantially effects the quality of interfacial adhesion. However, basic and specific correlation is still incomplete. The possible mechanisms by which the fiber surface parameters contribute to the constitution of the fiber/matrix interface include the interfacial chemical and physical interactions caused by fiber surface functionality and surface energy, the mechanical interlocking due to fiber surface irregularity, and, the interfacial wetting based on fiber surface energy. It was the objective of this work to explore the effects of physical and chemical aspects of fiber surfaces on the durability of interfacial adhesion in carbon fiber reinforced composites.

• OSTI ID: 441505
• Report Number(s): CONF-960214--
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
ADHESION
CARBON FIBERS
COMPOSITE MATERIALS
EPOXIDES
INTERFACES
SURFACE TREATMENTS