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The meltable polytetrafluoroethylene (PFA) was used as the matrix resin. Firstly, the PFA resin was modified by blending and filling with polymer and inorganic fillers to prepare suspension. Then, the suspension was coated and sintered in turn to prepare fluororesin-based film. Finally, the fluororesin-based film and copper foil were pressed together to prepare flexible copper clad laminate (FCCL). The results show that the prepared FCCL has 0.001 5 (10 GHz) of dielectric loss, 38 MPa of tensile strength, 0.05% of water absorption rate, greater than 1.0 kgf/cm of peel strength, and there is no delamination, oxidation, foaming in the soldering resistance test (300℃, 10 s, 3 times), which indicates that the FCCL has better overall performance.
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| 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 |
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