Chemistry Reference
In-Depth Information
Fig. 9.5
Plots of the
nonisothermal rate of AP-PE
mixture decomposition
(
d
AP
= 200 μm) against the
conversion degree at heating
rate
min
-1
0.14
0.12
= 5
.
7(
1
), 4.3 (
2
),
2.1(
3
), 1.7 (
4
)
◦
Cmin
−
1
ω
0.08
0.04
0.2
0.4
0.6
0.8
1.0
Fig. 9.6
Plots of the rate
constants for AP-PE mixture
decomposition against the
temperature for samples
characterized by
d
AP
= 50
4.2
μ
m
3.8
(
crosses
) and 200
μ
m(
circles
and triangles
)
3.4
3.0
2.6
2.2
1.40
1.52
1.56
1.60
1.44
1.48
Data on the kinetic constants for the high-temperature decomposition of AP-PE
mixtures that differ in terms of AP particle size are given in Table 9.1.
Based on these data (taking into account that the AP powders used were not
strictly
monodisperse),
one
concludes
that
the
second-stage
rate
constant
is
proportional to the specific area of the polymer-oxidizer contact:
