A fiberglass-reinforced polymer blend with a new-generation flame retardant is studied with multi-energy synchrotron
X-ray tomography to assess the blend homogeneity. Relative to other composite materials, this sample
is difficult to image due to low contrast between fiberglass and the polymer blend. To investigate the chemical
composition of this polymer blend, new procedures and algorithms were developed to produce, segment and analyze
a chemical concentration distribution that assesses the flame retardant distribution throughout the blend.
The results show an extremely homogenous system to the level of the tomography resolution, 3.26 μm. The
processes and algorithms used herein include: (a) correction of reconstructed subvolumes absorption values, (b)
model for chemical distribution, including the fiberglass matrix, (c) model for chemical distribution, excluding
the fiberglass matrix, and (d) an algorithm for generating the radial concentration distribution about the glass
fibers in the polymer matrix.
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