▎ 摘　　要

NOVELTY - Preparing dynamic sealing material involves pressing and sintering the mixed powder, the mixed powder comprises a resin matrix, middle phase carbon microsphere and graphene coated hollow glass microsphere, the mass ratio of the resin matrix, the middle phase carbon microsphere and the graphene-coated hollow glass microsphere is 100: (5-30): (1-15). USE - Method for preparing dynamic sealing material for sealing element (claimed). ADVANTAGE - The method enables to prepare dynamic sealing material with excellent mechanical property, low friction coefficient and excellent compression resilience performance. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a sealing element, which is made of the dynamic sealing material. DESCRIPTION OF DRAWING(S) - The drawing shows a scanning electroscope diagram of the dynamic sealing material prepared in Example 1.