The invention discloses a sealing
gasket with excellent resilience performance and a preparation method thereof. The sealing
gasket comprises the following raw materials including 10-15 parts of elastic
graphene microparticles, 40-60 parts of a
copper sulfate solution, 2-3 parts of
molybdenum sulfide, 3-4 parts of carboxymethylcellulose, 15-25 parts of an acrylic
emulsion, 5-7 parts of methylsilicone oil, 40-60 parts of
polytetrafluoroethylene powder, 80-120 parts of ternary
ethylene rubber, 3-5 parts of glass fibers and 1-2 parts of a crosslinking additive. The preparation method includes thefollowing steps that 1, the elastic
graphene microparticles are added into the
copper sulfate solution and subjected to
pulse current treatment and pulse electromagnetic treatment to obtain modifiedelastic
graphene microparticles; 2, the modified elastic graphene microparticles, the
molybdenum sulfide and the
carboxymethyl cellulose are mixed, then the acrylic
emulsion and the methylsilicone oilare added, and ball milling and
drying are carried out; 3, the remaining raw materials are mixed and cooled and then added into a product obtained in step 2 for stirring,
compression molding and
vulcanization treatment, and the sealing
gasket can be prepared. The sealing gasket has excellent resilience performance, shock absorption and sound attenuation performance and sealing performance, can beused for a long time in the field of chemical pumps, and has a broad application and popularization prospect.