FIGURE 3 Flame retardant tests of DABPPI and MMT-PI, both of
which acted as fire shields to protect cotton.
Furthermore, to observe the flame retardancy of the composite more
intuitively and comprehensively, and to explore its real application
potential, MMT-PI was directly exposed to the flame of an alcohol lamp
(600 oC~800 oC), and
a fluffy cotton ball was placed above the composite (the cotton ball was
about 2 cm away from MMT-PI, to check whether it will be ignited).
Similarly, DABPPI was also tested as a fireproof board. Once DABPPI was
exposed to flame, it would burn through after 33 s, then ignite the
cotton ball. Differently, even if the MMT-PI was exposed to the flame
for 180 s, it would not burn through, and the cotton ball would not
catch fire (Fig. 3 ).
An infrared camera was used to record the above process (the recording
time was 90 s), and the results were shown in Fig.4 (the DABPPI
results were given in Fig. S4 in Supporting Information).