## 3 Results  
Figure 6 and Table 6 show the technical parameters (the thickness, density, and percentage of the Outlast textile in a complex material) of the experimental samples of the complex materials with HPMs included.  
\begin{table}
\begin{tabular}{c c c c c c} \hline \hline \multirow{2}{*}{\begin{tabular}{c} **Type of Test** \\ **Samples** \\ **(Test Samples +),** \\ \end{tabular} } & \begin{tabular}{c} **Fraction of Composite** \\ **Material Outlast Textile in** \\ **(Material \(N1\)), mm** \\ **(Test Samples +),** \% \\ \end{tabular} & \begin{tabular}{c} **Thickness of the** \\ **Component** \\ **(Material \(N1\)), mm** \\ **(10\({}^{-3}\)), h1** **\%** \\ \end{tabular} & \begin{tabular}{c} **Thickness of the** \\ **Component** \\ **(Material \(N2\)), mm** \\ **(10\({}^{-3}\)), h2** **\%** \\ \end{tabular} & \
\begin{tabular}{c} **Number of** \\ **Component** \\ **(Material \(N1\)), n** **\%** \\ \end{tabular} &
\begin{tabular}{c} **Number of** \\ **Component Layers** \\ **(Material \(N2\)), k** **\%** \\ \end{tabular} \\ \hline \(1\) & 0 & 21.00 & 0 & 1 & 0 \\ \hline \(2\) & 30 & 2.0 & 0.85 & 5 & 5 \\ \hline \(3\) & 50 & 1.0 & 0.85 & 5 & 6 \\ \hline \(4\) & 100 & 0 & 0.85 & 0 & 1 \\ \hline \hline \end{tabular}  
* in accordance with Table 3; ** in accordance with Figure 5.  
\end{table}
Table 5: Characteristics of the structures of the test samples.  
Figure 5: Scheme of complex sample materials (\(N1\), \(N2\) according to Table 3).  
Analysis of the research results showed that the Outlast textile material has a high density (230-250 kg/m\({}^{3}\)) with a very small degree of thickness (samples with a thickness of 0.85 mm were considered). This can be explained by the concentration of polymer capsules with paraffin wax in a thin material, which is characterized by its own high density of the active substance (850-930 kg/m\({}^{3}\)) [36]. At the same time, the Outlast textile materials with integrated heat-accumulating PCM microcapsules are characterized by a significantly lower degree of thickness compared to traditional fiber insulation cloths (at 10 times or more). The relationship between the technical parameters of the complex materials studied showed that with an increase in the density of the complex materials, there is a proportional increase in the encapsulated material Outlast textile fraction.  
The combination of the Outlast textile with a lightweight polyester fiber layer that is based on Termofiber allows one to give the material heat-accumulating properties. However, for the materials in heat-protective clothing, the thermal conductivity and the thickness of the shell are of great importance.  
The study of the thermal conductivity of complex insulation materials was performed for different temperature conditions. (+5 and +25 \({}^{\circ}\)C).  
Figure 7 presents the results of the study of the thermal conductivity of the complex material Termofiber/Outlast textile, depending on the proportion of the heat-accumulating textile component and the temperature.  
\begin{table}
\begin{tabular}{c c c c} \hline \hline \(\mathbf{N}\) of Test Samples. & \begin{tabular}{c} **Fraction of Composite Material Outlast** \\ **Textile in the Complex Material, \% \({}^{*}\)** \\ \end{tabular} & \
\begin{tabular}{c} **Thickness of Test Samples,** \\ **m (10\({}^{-3}\)).** \\ \end{tabular} &
\begin{tabular}{c} **Density, kg/m\({}^{3}\)** \\ \end{tabular} \\ \hline
1 & 0 & 21.00 & 14.290 \\ \hline
2 & 30 & 14.25 & 82.210 \\ \hline
3 & 50 & 10.10 & 132.021 \\ \hline
4 & 100 & 0.85 & 238.032 \\ \hline \hline \end{tabular} \({}^{*}\) in accordance with Table 3.  
\end{table}
Table 6: Parameters of material samples for research.