474803.fig.004a
(a) Nanoclay
474803.fig.004b
(b) SBO PU foam without fillers
474803.fig.004c
(c) SBO PU foam with 1% nanoclay
474803.fig.004d
(d) SBO PU foam with 3% nanoclay
474803.fig.004e
(e) SBO PU foam with 5% nanoclay
474803.fig.004f
(f) SBO PU foam with 7% nanoclay
Figure 4: Scanning electron micrographs of SBO PU foams modified with nanoclay.