▎ 摘　　要

NOVELTY - A golf ball (10) comprises an inner core (12a) comprising a polybutadiene material, an outer core (12b) comprising 40-90 wt.% polybutadiene, 10-50 wt.% zinc diacrylate, 1-30 wt.% zinc oxide, 0.1-10 wt.% peroxide initiator, 0.01-6 wt.% a graphene material, and 0.01-6 wt.% carbon nanotube material, where the graphene material has a surface area of 150-1000 m2/g, and a cover layer is disposed over the outer core. USE - Golf ball. ADVANTAGE - The ball has high durability of the core by using a mixture of graphene and carbon nanotube that can result in higher mean time to fail (MTTF) upon repeated impact in a high speed testing device, or with a golf club in normal play, improved aging properties due to the incorporation of graphene in the core for better retention of compression and COR over time, and high thermal conductivity. DESCRIPTION OF DRAWING(S) - The drawing shows an exploded perspective view of golf ball. Golf ball (10) Inner core (12a) Outer core (12b) Inner mantle (14a) Outer mantle (14b)