▎ 摘　　要

NOVELTY - Tire comprises a rubber composite comprising at least one rubber or elastomer matrix with a first thermal conductivity and pristine nano graphene platelets dispersed in the matrix to make the rubber matrix composite thermally conducting. The rubber composite has a thermal conductivity of greater than the first thermal conductivity of the matrix. USE - Used as tire. ADVANTAGE - The tire has significantly enhanced thermal conductivity. The composite is a cost-effective tire rubber composition that exhibits superior anti-wear, wet-grip, and thermal conductivity properties. The pristine nano graphene platelets-containing tire exhibits improved heat transfer properties as compared to corresponding tires containing graphite oxide nano platelets or graphite nano particles. The pristine nano graphene platelets can be cost-effectively produced in large quantities by direct ultrasonication. The ultra-high strength of nano graphene platelets can provide superior wear resistance to a rubber matrix. The tire has a high stiffness, which can be imparted by nano graphene platelets having ultra-high elastic modulus. The tire has long term, stable protection against chemical attack. The composite is impermeable to gas or liquid molecules, and imparts outstanding barrier properties to a rubbery material (e.g. for tire lining). DETAILED DESCRIPTION - INDEPENDENT CLAIMS are also included for: (1) a tire lining comprising a rubber composite, comprising a rubber or elastomer matrix and pristine nano graphene platelets dispersed in the matrix; and (2) a tire comprising a rubber composite, containing: (a) one rubber or elastomer matrix with a first thermal conductivity; and (b) oxidized nano graphene platelets dispersed in the matrix to make the rubber matrix composite thermally conducting, having a thermal conductivity of greater than the first thermal conductivity of the matrix, where the oxidized nano graphene platelets are produced by one of two processes including: (a1) production of pristine graphene, followed by oxidation of the pristine graphene; or (b1) production of graphite oxide nano platelets, followed by chemical or thermal reduction of the graphite oxide nano platelets.