acrylonitrile while some produces small rubber spheres which become
dispersed through
the
terpolymer
and SAN
matrix. Figure
15.2
shows
the
stress/strain graphs
for SAN and the
acrylonitrile-butadiene-styrene (ABS).
ABS
is an
amorphous material which
is
tough, stiff
and
abrasion resistant.
It
can
be
injection moulded, extruded, rotationally moulded
and
thermoformed.
ABS
is
widely used
as the
casing
for
telephones, vacuum cleaners, hair
driers,
radios, televison sets, typewriters, luggage ...
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