▎ 摘　　要

NOVELTY - Graphene composite material comprises 35 pts. wt. graphite, 22 pts. wt. silicone resin, 12 pts. wt. diatom mud, 55 pts. wt. straw, 3-5 pts. wt. zeolite, 8-10 pts. wt. polylactic acid, 4-8 pts. wt. diammonium hydrogen phosphate and 1-5 pts. wt. sodium bicarbonate. USE - The graphene composite material is useful for preventing and controlling haze (claimed). ADVANTAGE - The material has simple preparation process, stable chemical performance, effectively prevent haze, haze preventing effect, and composite material does not contain any heavy metal and chlorine; and is environmentally friendly. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for preparing composite material comprising (i) crushing the straw by the material shredding device into a piece of material not exceeding 6 cm in length, (ii) mixing the segmented material obtained in step (i) and diammonium hydrogen phosphate and sodium bicarbonate and chemically activating, (iii) shaping above-mentioned chemically activated segmented material by material forming device to obtain block material, (iv) passing the above-mentioned massive material through a charring furnace, adding graphene and diatom mud, mixing and carbonizing into carbon blocks, the temperature is 720 degrees C and the time is 3.5 hours, (v) cooling the above carbon block to room temperature, (vi) crushing the cooled carbon block to an amorphous granular carbon block with a diameter of less than 2 cm, (vii) heating silicone resin and polylactic acid to the molten state, then charging into indeterminate granular carbon block, and extruding through a screw extruder to obtain micrometer-sized porous plate, (viii) boiling above-mentioned composite material in a pickling device, (ix) washing boiled raw material of composite material to pH neutral by a washing device, and (x) drying the water-washed composite material to obtain final product.