other hand, the area of polymer - filler interface is growing and the number of
crystallization centers increases.
As a result of the research we have studied the effect of dispersed metallic fillers
on phenylone structure. It is shown that metals specifically affect phenylone, increasing
the efficiency of crystallization centers, with a more substantial impact of carbonyl
nickel. It has been established that X-ray degree of crystallinity of the developed metal-
containing polymers depends on particle size.
Table 3 The results of qualitative and quantitative analysis
Fillers
r (μm)
DC (%)
R
0
(nm)
L (nm)
Peak
number
d
HKL
(nm)
I (%)
–
–
–
0.56
1.77
–
0.452
–
Ni
12 – 21
61
0.46
2.72
1
0.204
100
2
1.770
50
Cu
33 – 57
55
0.47
2.27
1
0.208
100
2
0.180
53
Bronze
43 – 90
48
0.49
2.40
1
0.209
100
2
0.182
53
Al
129 – 172
34
0.50
1.85
1
0.233
100
2
0.203
40
Ti
158 – 284
24
0.50
2.04
1
0.254
27
2
0.234
20
3
0.223
100
The effect of various metallic filling materials on the thermophysical
properties of aromatic-polyamide-based composite materials. It is known [20], that
materials based on APP are designed to work at elevated (up to 523 K) temperatures
in all climatic zones. Their thermal coefficient of linear expansion is stable enough in
the range of working temperatures and 2 – 3 times lower comparing with other unfilled
plastics. Thus, the scientific interest was the study of the influence of metal FM on the
thermophysical characteristics of MPs based on phenylone, because many details of
technical devices from PCMs are used in the unstationary thermal processes.
Thermogravimetric analysis (TGA), which unites the methods based on
measuring the loss of mass of material, has got the greatest application for the
determining of heat resistance of PCMs. Microthermoscales TG 209 F3 Tarsus
manufactured by Germany, which work in the temperature range from the room one
and up to 1273 K, were used for the thermogravimetric testing.
The main evaluation criteria of the heat resistance of PCMs are the following
temperatures: T
bt.
is temperature of the beginning of thermal destruction; T
5
, T
10
, T
20
is
5, 10, 20 % of the initial mass respectively; Т
v max
is at this temperature mass loss speed
of the sample is maximal; T
exp.
is at this one the exothermic peak, which corresponds
to depolymerization, appears.
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