◎耐水解性：可耐150～160℃热水或蒸气，在高温下也不受酸、碱的侵蚀
◎模量的温度依赖性：其模量在-100℃到200℃几乎不变，特别在100℃以上比任何一种热
塑性树脂都好。
◎抗蠕变性：在180℃以下的温度范围内其抗蠕变性是热塑性树脂当中异的一种，特别是玻
璃纤维增强PES树脂比某些热固性树脂还好。
◎尺寸稳定性：线膨胀系数小，而且其温度信赖性也小是其特点。特点是30%玻璃纤维增强
PES树脂，其线膨胀系数只有2.3×10-5 /℃，并且直到200℃仍然可以保持与铝相近似的值。
◎耐冲击性：具有与聚碳酸酯相同的耐冲击性。不增强的树脂可以铆接，但对尖细的 切口
较敏感，因此设计上要注意。
◎无毒性：在卫生标准方面，被美国FDA认可，也符合日本厚生省第434号和178号公告的要
求。
◎难燃性：具有自熄性，不添加任何阻燃剂即有优异的难燃性，可达UL94V-0级（0.46mm）
◎耐化学药品性：PES耐汽油、机油、润滑油等油类和氟里昂等清洗剂，它的耐溶剂开裂性
是非晶树脂中的。但它耐丙酮、氯仿等极性溶剂的性能不好，使用时应加以注意。
◎ Hydrolysis resistance: it can withstand 150~160 ℃ hot water or steam, and is not subject to acid and alkali erosion under high temperature ◎ Temperature dependence of modulus: its modulus is almost unchanged from - 100 ℃ to 200 ℃, especially when it is above 100 ℃ The plastic resin is good. ◎ Creep resistance: its creep resistance is one of the different thermoplastic resins in the temperature range below 180 ℃, especially glass Glass fiber reinforced PES resin is better than some thermosetting resins. ◎ Dimensional stability: small linear expansion coefficient and low temperature reliability are its characteristics. Features 30% glass fiber reinforced The linear expansion coefficient of PES resin is only 2.3 × 10-5/℃, and the same value as aluminum can still be maintained until 200 ℃. ◎ Impact resistance: It has the same impact resistance as polycarbonate. Unreinforced resin can be riveted, but for sharp and thin cuts It is sensitive, so attention should be paid in design. ◎ Non-toxicity: In terms of health standards, it is recognized by the FDA of the United States, and also meets the requirements of the Announcement 434 and 178 of the Ministry of Health and Welfare of Japan Ask. ◎ Flame retardancy: it has self-extinguishing property, and it has excellent flame retardancy without adding any flame retardant, reaching UL94V-0 level (0.46mm) ◎ Chemical resistance: PES is resistant to gasoline, engine oil, lubricating oil and other oils and cleaning agents such as Freon, and its solvent cracking resistance It is in amorphous resin. However, its resistance to acetone, chloroform and other polar solvents is not good, and attention should be paid when using it.
