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特征
自润滑性、耐磨损和不粘附水和油质。耐候耐辐照。
耐热和耐低温特性。短时间可耐高温到300℃，在240℃~260℃之间可连续使用，
耐腐蚀性：能够承受除了熔融的碱金属，氟化介质以及高于300℃氢氧化钠之外的所有强酸（包括王水）、强氧化剂、还原剂和各种有机溶剂。
绝缘性：不受环境及频率的影响，体积电阻可达1018ω·cm，介质损耗小，击穿电压高。
feature:
self-lubricating, wear-resistant and does not adhere to water and oil. weathering resistance to radiation.
heat resistance and low temperature properties. short period of time can be high temperature to 300℃, continuous use between 240℃~ 260℃,
corrosion resistance: in addition to withstand molten alkali l fluoride, a strong acid medium, and above all than 300℃sodium hydroxide (including aqua regia), strong oxidizing agents, reducing agents and various organic solvents.
insulation resistance: unaffected by the environment and frequency, volume resistivity of up to 1018ω · cm, dielectric loss, high breakdown voltage.
