| 摘要 |
<p>A resin composition suitable for the sealing ring used to prevent the leakage of a motor oil in a hydraulic device is provided to reduce wear coefficient and to improve the uniformity of fluidity and abrasion resistance of a sealing ring. A resin composition comprises 50-94 wt% of a polyether ether ketone resin which comprises the polyether ether ketone having a terminal hydroxy group and the polyether ether ketone having a terminal carboxyl group; 5-40 wt% of a spherical inorganic particle; and 1-10 wt% of a solid lubricant. Preferably the polyether ether ketone having a terminal hydroxy group has a number average molecular weight (Mn) is 65,000-90,000; and the polyether ether ketone having a terminal carboxyl group has a number average molecular weight of 65,000-97,000.</p> |
