Special engineering plastic such as poly(aryl ether sulfone)s(PAESs) are widely used as anti-friction and wear-resistance materials in transmission and rotation system of some high technical fields such as precision machinery, aerospace,automotive industry, medical equipment and weapon equipment because of their considerable excellent properties like high strength, light weight, self-lubricating,wear resistance and no corrosion. Compared with traditional metal frictional materials, special engineering plast...