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By using organic-inorganic composite technology, the high temperature resistant insulation layer was prepared by coating quartz fiber wrap cladding with silicone nano alumina sol. The micro morphology and structure of the organic silicon-nano alumina sol coating were analyzed by SEM, FTIR, XRD and other characterization techniques. The thermal stability of the organic silicon-nano alumina sol composite insulating paint was analyzed by TG-DSC. The insulation performance and breakdown voltage performance of high-temperature wire were tested at room temperature and high temperature. The results show that the organic silicon-nano alumina sol composite insulating paint has good thermal stability, and it can significantly improve the temperature resistance level of the glass fiber wrap cladding. The high-temperature wire shows good high temperature insulation and high voltage resistance. At 800℃, the electrical resistance is greater than 1 MΩ·m, and the normal temperature breakdown voltage is greater than 2 000 V. It is suitable for special environments such as high temperature and high voltage in the aviation and aerospace fields.
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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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