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All instruments are interfaced with computer
data acquistion systems that have the ability to
record data at high rates and over long periods
of time. This is necessary for high speed and
fatigue work.
Extensometers are available for reliable
measurement of small elongations (< 2%), a
requirement for accurate determination of
modulus.
A CCD video camera is also available for
measuring long elongations. Recently, the
laboratory has been equipped with a Keithley
electrometer and current source for measuring
electrical properties of polymers filled with
conductive materials.
When combined with one of the Instron testing
instruments, the effect of deformation on
conductivity of filled polymers can be studied
in situ.
This example reflects the inherent
flexibility of the Charles E. Reed Laboratory.
Utilizing several techniques in concert has
allowed deeper insight into the
structure-property relationships of many
polymeric systems. |
