▎ 摘　　要

NOVELTY - A composite material comprises glass ball as substrate, graphene powder, negative ion powder, far infrared powder and tourmaline powder material, where the graphene occupied 10 wt.% of the substrate glass balls, anion powder occupied 70 wt.% of the substrate glass balls, far infrared powder occupied 10 wt.% of the substrate glass balls and tourmaline powder occupied 10 wt.% of substrate glass balls. USE - Composite material for preparing fuel economizer of automobile (claimed). ADVANTAGE - The composite material can be prepared with better effect of saving oil emission reduction, cleaning accumulated carbon, improving power and cleaning oil, improving the oil product of the finished oil in energy saving and eco-friendly manner. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for a method for preparing composite material, which involves melting the glass ball, adding graphene powder and negative ion powder, far infrared powder and tourmaline powder, fully mixing, stirring uniformly, adopting bar mechanism for mixed material into strip material, cutting material into square, finally grinding into circular ball and drying to obtain the product.