▎ 摘　　要

NOVELTY - A golf ball with a graphene core (12) is formed by mixing graphene masterbatch material with polybutadiene material to form a core mixture comprising 40-90 wt.% polybutadiene, 10-50 wt.% zinc diacrylate, 1-30 wt.% zinc oxide, 0.1-10 wt.% peroxide initiator, and 0.4-2.5 wt.% graphene material, and compression molding a core from the core mixture. Graphene masterbatch material comprises 0.1-80 wt.%, preferably 0.1-1 wt.% graphene and 20-99.9 wt.%, preferably 99-99.9 wt.% carrier polymer, where graphene material has surface area of 150-1000 m2/g. USE - Formation of a golf ball with a graphene core. ADVANTAGE - Aging properties of the golf ball are improved due to the incorporation of graphene in the core for better retention of compression and coefficient of restitution (COR) over time. The graphene is mixed twice, once during masterbatch process and again when added to a rubber core mixture, where incorporation is dust free, and graphene stays in masterbatch. Incorporating graphene and carbon nanotube into the outer core component reinforces the strength of the outer core and provides greater crack durability protection in the design of a dual core golf ball, which is more susceptible to crack durability failures if the outer core is firmer than the soft inner core. DESCRIPTION OF DRAWING(S) - The drawing shows a cross-sectional diagram of a core component of a golf ball. Core (12) Inner core (12a) Outer core (12b)