· The diagram illustrates several
bonding mechanisms.
· In
(a) fiber macromolecules
entangle with matrix molecules.
· (b) shows bonding due to an electrostatic attraction
between the fiber and matrix.
· In
(c) anionic end groups on matrix molecules are attracted to a
cationic fiber surface.
· Chemical
bonds can form between fiber surface groups and the matrix (d).
· Mechanical bonds (e) between the matrix
and a rough fiber are also important and may enhance the toughness
of brittle
matrix
composites such as high temperature ceramic matrix materials.
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