The glass fiber–polymer matrix interface/interphase characterized by nanoscale imaging techniques

Composites Science and Technology, Volume 83, 28 June 2013, Pages 22-26.
V. Cech, E. Palesch, J. Lukes.

 

Institute of Materials Chemistry, Faculty of Chemistry, Brno University of Technology, Purkynova 118, CZ-612 00 Brno, Czech Republic and.

Department of Mechanics, Biomechanics and Mechatronics, Czech Technical University, Technicka 4, CZ-166 07 Prague 6, Czech Republic.

 

Abstract

Atomic force microscopy (surface topography, phase imaging, lateral forces), atomic force acoustic microscopy, and dynamic mechanical analysis (modulus mapping) were used to characterize the interphase region of unsized, industrially sized, and plasma coated glass fibers (GF) in GF/polyester composite. The nanoscale imaging techniques revealed the sharp changes in mechanical properties within 0.1 um of the interlayer/fiber and matrix/interlayer interfaces for plasma polymer coated fibers, or at the matrix/fiber interface in the case of unsized fibers. A region of modified matrix with a thickness of 0.5 um was determined near the fiber surface in the case of industrially sized fibers.

 

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Figure legend:

Atomic force microscopy (AFM), atomic force acoustic microscopy (AFAM), and dynamic mechanical analysis (nanoDMA) can be used to characterize the interphase region in fiber-reinforced plastics.

 

the glass

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