The dependence of interfacial shear strength on matrix and interphase properties

Journal Article · Fri Feb 01 04:00:00 EST 1991 · Polymer Composites; (USA)

DOI:https://doi.org/10.1002/pc.750120108· OSTI ID:5853408

Rao, V; Drzal, L T ^[1]

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1. Michigan State Univ., East Lansing (USA)

Experiments were conducted to determine the dependence of the interfacial shear strength on the bulk material matrix properties using model compounds based on epoxy/amine chemistry. AS4 carbon fibers were used as the subject for these measurements with both disfunctional epoxy (DGEBA) and transfunctional epoxy (MY720) systems. Amine curing agents were carefully chosen to produce a range of matrix properties from brittle, elastic to ductile, plastic. The fiber-matrix interfacial chemistry was constant throughout this study by always using a stoichiometric amount of curing agent. The results indicate that, for both the disfunctional as well as the tetrafunctional epoxy system, the interfacial shear strength (as determined by the fragmentation test) decreased nonlinearly with decreasing modulus of the matrix. 21 refs.

• OSTI ID: 5853408
• Journal Information: Polymer Composites; (USA), Journal Name: Polymer Composites; (USA) Vol. 12; ISSN 0272-8397; ISSN PCOMD
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360603* -- Materials-- Properties
AMINES
CARBON FIBERS
COMPOSITE MATERIALS
ELASTICITY
EPOXIDES
FIBERS
INTERFACES
MATERIALS
MECHANICAL PROPERTIES
ORGANIC COMPOUNDS
ORGANIC OXYGEN COMPOUNDS
PHOTOGRAPHY
PHOTOMICROGRAPHY
PHYSICAL PROPERTIES
SHEAR PROPERTIES
TENSILE PROPERTIES
THERMODYNAMIC PROPERTIES
TRANSITION TEMPERATURE