## 3 Results and Discussion
### Statistical Evaluation of the Test Series with Regard to the Applied Squeezing Force
\begin{table}
\begin{tabular}{c c c c c} \hline \hline
**Trial** & **m0 [g]** & **m1 [g]** & **Am [g]** & **Load [g/g]** & **Name for Calculation of Effects and Interactions** \\ \hline
1 & 339 & 425 & 86 & 0.25 & c \\
2 & 328 & 409 & 81 & 0.25 & bc \\
3 & 341 & 429 & 88 & 0.26 & abc \\
4 & 340 & 440 & 100 & 0.29 & ab \\
5 & 346 & 435 & 89 & 0.26 & b \\
6 & 338 & 430 & 92 & 0.27 & ac \\
7 & 340 & 436 & 96 & 0.28 & a \\
8 & 328 & 413 & 85 & 0.26 & (1) \\ \hline \hline \end{tabular}
\end{table} 
Table 11: Average values for evaluating the squeezing force. \begin{table}
\begin{tabular}{c c c c} \hline \hline
**Factor** & **(A) Immersion Frequency** & **(B) Spring Length** & **(C) Total Duration of the Process** \\ \hline Effect & \(7.5\times 10^{-3}\) & \(-1.25\times 10^{-3}\) & \(-7.5\times 10^{-3}\) \\ \hline \hline \end{tabular}
\end{table} 
Table 12: Effect of immersion frequency, spring length and the total duration of the process on the loading of KevoGlass550. The averaged values are analysed in Table 16 for their respective effect on the dwell time. The effects of immersion time and concentration on the basis weight are rather small but significant. A higher concentration of flame retardant has three times as strong an effect on the basis weight as a longer dwell time of the textile in the process. The interaction between the concentration of the flame retardant in the finish and the immersion time of the textile in the process is summarised in Table 17. The factors favour each other. With a high concentration of flame retardant, a long dwell time of the textile in the process also has a positive effect on the basis weight. Furthermore, the images of differently finished textiles were compared under the microscope. Textiles are shown that have not yet been treated with the adhesive. Figure 5 shows a sample that has been finished for 60 min in the finishing agent with a flame retardant concentration of 26.8 g/L. In Figure 6, it can be seen that the flame retardant does not form any clusters and occurs rather selectively but at a high density. The functionalised flame retardants are densely deposited on the filaments of the glass fibre fabric. So, it can be interpreted that the flame retardant treatment using a bifunctional peptide as an adhesion promoter is successful. \begin{table}
\begin{tabular}{c c c} \hline \hline Factor & (A) Concentration & (B) Total duration of process \\ \hline Effect & 0.75 & 0.25 \\ \hline \hline \end{tabular}
\end{table} 
Table 16: Effect of concentration and immersion time on the surface weight of textiles. \begin{table}
\begin{tabular}{c c c} \hline \hline \multirow{2}{*}{**Trial**} & **Surface Weight** & **Average Surface** & **Amount of Flame Retardants** \\  & **[g/m\({}^{2}\)]** & **Weight [g/m\({}^{2}\)]** & **(Linked with Bifunctional Peptide)** \\  & & **per Surface Weight [g/m\({}^{2}\)]** \\ \hline
1 (d) & 583/590/598 & 590 & 40 \\
2 (dc) & 600/586/591 & 592 & 42 \\
3 (1) & 590/595/587 & 590 & 40 \\
4 (c) & 602/585/580 & 589 & 39 \\
5 (-) & Not impregnated & 550 & 0 \\ \hline \hline \end{tabular}
\end{table} 
Table 15: Evaluation of the final test series without adhesive, and evaluation of the grafting with anchor peptides. Figure 6: Large amounts of flame retardants and clusters on glass fibre fabric after treatment with flame retardant finish (26.8 g/L for 60 min). Figure 7 also shows a large amount of flame retardant on the textile, where the amount of bifunctional peptide is highest at the factor settings of 60 min and 40 g/L. Clusters have formed from the flame retardant impregnation and the flame retardants are densely deposited on the glass fibre filaments. It can be interpreted that the flame-retardant treatment using the bifunctional peptide as an adhesion promotor is successful under the boundary conditions selected for this sample. Additionally, the flame resistance according to DIN EN ISO 15025 of the textiles treated with the flame retardant finish and adhesive was analysed.