Insulating paper is an important insulating material that produced by papermaking technology and widely used in electrical equipment such as transformers, capacitors, motors, wires and cables. According to its composition, insulating paper can be divided into cellulose paper and non-cellulose paper. With the sustainable development of China’s power industry, motors and other electric equipment are gradually getting more efficient and smaller. Therefore, higher property requirements are put forward to insulating paper, especially high-temperature resistant performance. Although cellulose papers have a long history, their heat resistance is not high enough to meet the operating requirements of electrical insulation systems, which need the thermal class of F or above. Non-cellulose papers with higher heat resistance have sprung up. This article briefly introduces the development history, performance characteristics, main uses, production status, and development trends of various high-temperature resistant non-cellulose insulating papers in China.
| 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 |