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. 2024 Jun 8;17(12):2802.
doi: 10.3390/ma17122802.

The Performance Testing and Analysis of Common New Filter Materials: A Case of Four Filter Materials

Fenggang Sun  1 , Xin Zhang  1 , Tao Xue  1 , Ping Cheng  1 , Tao Yu  2
Affiliations

The Performance Testing and Analysis of Common New Filter Materials: A Case of Four Filter Materials

Fenggang Sun et al. Materials (Basel). .

Abstract

The complex air environment makes it urgent to build good and safe indoor environments, and the study and application of new materials have become the focus of current research. In this study, we tested and analyzed the structural parameters and filtration performances of the four most commonly used new filter materials in the current market. The results showed that all four new filter materials showed a trend of first increasing and then decreasing their filtration efficiency with an increase in filtration velocity. The filtration efficiency of the materials was as follows: PTFE > glass fiber > nanomaterial > electret. The filtration efficiency of all materials reached its maximum when the filtration velocity was 0.2 m/s. The filtration efficiency of the PTFE for PM10, PM2.5, and PM1.0 was higher than that of the other three materials, with values of 0.87% to 24.93%, 1.21% to 18.69%, and 0.56% to 16.03%, respectively. PTFE was more effective in capturing particles smaller than 1.0 μm. Within the testing velocity range, the resistance of the filter materials was as follows: glass fiber > PTFE > electret > nanomaterial, and the resistance of the four materials showed a good fitting effect. It is also necessary to match the resistance with the filtration efficiency during use, as well as to study the effectiveness of filter materials in blocking microorganisms and absorbing toxic gases. Overall, PTFE showed the best comprehensive performance, as well as providing data support for the selection of related materials or the synthesis and research of filter materials in the future.

Keywords: fiber structure; filter materials; particles; performance differences.

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Conflict of interest statement

Author Tao Yu was employed by the company Wuhan Second Ship Design and Research Institute. The remaining authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest.

Figures

Figure 1
Figure 1
Experimental setup.
Figure 2
Figure 2
Physical images of filter materials.
Figure 3
Figure 3
Distribution of atmospheric particles.
Figure 4
Figure 4
Scanning electron microscope images of the different materials (100 times).
Figure 5
Figure 5
Differences in the PM filtration efficiency of different materials.
Figure 6
Figure 6
Counting filtration efficiency under different particle sizes.
Figure 7
Figure 7
The variation in resistance with different filtration velocities.
See this image and copyright information in PMC

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