## 3 Results and Discussion
### Analysis of Water Retention in Anionic Fluorinated Solutions
#### 3.1.3 Analysis of Total Weight Loss Rate Variation of Anionic Fluorinated Solutions  
As shown in Figure 4a, the total mass lost from the solution in the water retention experiment fluctuates up and down as the concentration of the solution increases, reaching troughs at 0.05%, 0.07%, and 0.3% of the solution and peaks at 0.04% and 0.1% of the concentration. The lowest total mass lost was 12.7602 g at a solution concentration of 0.07%, followed by a total mass loss of 12.8424 g at a concentration of 0.05%, and the highest total mass lost was 16.6708 g at a solution concentration of 0.04%. At solution concentrations of 0.05% and 0.07%, the least mass is lost and water retention is the best, while at a solution concentration of 0.04%, the most mass is lost and water retention is the worst. This suggests that the interaction between FS-60 and water, as well as the stability and volatility of the solution, vary with concentration.  
Figure 3: Water loss of FS-60, FS-61, FS-63 solution at different concentrations and different time periods.  
As can be seen in Figure 4b, there is no clear pattern in the weight loss of the FS-61 solution at different concentrations. The maximum weight loss of 15.4036 g occurred at a mass fraction of 0.01%, while the minimum weight loss of 12.2321 g occurred at a mass fraction of 0.3%, resulting in an extreme difference of 3.1715 g. When comparing the difference between adjacent concentrations, the maximum increase of 2.7254 g was observed between 0.07% and 0.08%, while the maximum decrease of 3.0531 g occurred between 0.2% and 0.3%. These findings suggest that water retention was strongest at 0.3%, followed by 0.07%, and weakest at 0.04%. The differences in weight loss between adjacent concentrations vary, suggesting that the water retention capabilities of the FS-61 solution are not consistent across concentrations.  
As shown in Figure 4c, there is no clear pattern in the weight loss of FS-63 solution at different concentrations. There was a maximum weight loss of 15.3613 g at a mass fraction of 0.05% and a minimum weight loss of 12.4645 g at 0.08%, with an extreme difference of 2.8968 g. Comparing the differences between adjacent concentrations, a maximum rising difference of 1.6688 g was found between 0.02% and 0.03% and a maximum falling difference of 1.4286 g between 0.05% and 0.06%. This shows that the solution retains the most water at 0.1% concentration, followed by the solution at 0.1% concentration and the weakest at 0.04% concentration. The maximum weight loss is observed at a concentration of 0.05%, while the minimum weight loss occurs at a concentration of 0.08%. The differences in weight loss between adjacent concentrations further support the inconsistency in water retention capabilities.  
Overall, the interaction between anionic fluorocarbon molecules and water, along with the stability and volatility of the solutions, play crucial roles in determining the water retention capabilities at different concentrations. The specific chemical compositions and properties of each solution, including the main components mentioned, contribute to the observed variations in water loss.  
Figure 4: Total water loss of FS-60, FS-61, FS-63 solution at different concentrations.