▎ 摘　　要

NOVELTY - Environmentally-friendly buoys composition comprises highly crystalline polypropylene, reduced graphene dispersion, dispersant, antioxidant, sunscreen, antifouling agent, ethylene propylene rubber and coupling agent. USE - The composition is useful for environmentally-friendly buoys (claimed) for fixing the nets installed to display the location of objects in the water and to farm fish, shellfish and algae. ADVANTAGE - The buoys: has excellent impact resistance; has excellent surface hardness, heat resistance, dimensional stability, heat deflection temperature and heat adhesion; provides excellent buoys; suppresses contamination of the marine environment due to microplastics generated from buoys; has excellent buoyancy; is not damaged by working ships or waves; is environmentally friendly and economical; saves time; provides guidance of presence of dangerous objects; capable of withstanding an appropriate load; and is not corroded by long-term exposure to sunlight and seawater.