The invention discloses a high-strength and high-resilience TPE (
thermoplastic elastomer) and a preparation method thereof in the technical field of
high polymer materials, and the
elastomer is prepared by taking a hydrogenated
styrene block
copolymer as a matrix and matching with a
polyolefin rigid phase, plasticizing oil and a specific additive. The method is characterized in that two self-made
reaction type modifiers are introduced, wherein one self-made
reaction type modifier is a core-shell nano reinforcing agent containing an
epoxy functional group and polyhedral oligomeric
siloxane, and the other self-made
reaction type modifier is a
furan maleimide bifunctional dynamic cross-linking agent. The nano reinforcing agent is prepared through
silane hydrolysis and
amination reaction, and can react with a matrix for
grafting, so that the strength and
creep resistance of the material are remarkably improved; the dynamic cross-linking agent is synthesized through step-by-step
isocyanate addition reaction, a cross-linked network can be reversibly formed in the
processing process, and the material is endowed with extremely high rebound resilience and low permanent deformation. The obtained product has high strength, high resilience and excellent processability, and is especially suitable for high-end fitness equipment.