Water-soluble polyvinyl alcohol nanofibers were utilized as the adhesive layer, and a steam atomization method was employed as a substitute for high-temperature treatment to fabricate PET/PPS nanofiber membrane composite filters through a circular roller stretching and pressing technique. The performance of the composite filters was characterized. The results indicated that the adhesion strength of the PET/PPS nanofiber membrane composite filter reached a maximum of 4.521N when the pressure was set at 0.436N/cm2, the PVA spinning amount was 42.857mL/m2, and the processing temperature during the pressurization was maintained at 20℃. The filtration efficiency for fine particulate matter with a diameter of 0.3µm achieved 98.86%. In dynamic filtration performance tests, after 30 cycles of constant pressure blowing, the time required for a single cycle was recorded as 13.5minutes, with a residual resistance of 265.4Pa, which outperformed existing PTFE-coated filter materials.
| 科 Family | 属数 Number of genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) | 属 Genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) |
|---|---|---|---|---|---|---|
| 鹅膏菌科Amanitaceae | 2 | 11 | 5.26 | 鹅膏菌属 Amanita | 10 | 4.78 |
| 小菇科 Mycenaceae | 2 | 12 | 5.74 | 丝盖伞属 Inocybe | 5 | 2.39 |
| 多孔菌科 Polyporaceae | 8 | 14 | 6.70 | 蜡蘑属 Laccaria | 5 | 2.39 |
| 红菇科 Russulaceae | 3 | 23 | 11.00 | 小皮伞属 Marasmius | 6 | 2.87 |
| 小菇属 Mycena | 11 | 5.26 | ||||
| 光柄菇属 Pluteus | 5 | 2.39 | ||||
| 红菇属 Russula | 17 | 8.13 | ||||
| 栓菌属 Trametes | 5 | 2.39 |