▎ 摘　　要

NOVELTY - Nano-inorganic filler comprises 20-25 pts. wt. nano-silicon dioxide, 10-16 pts. wt. micro-silicon powder, 10-16 pts. wt. nano titanium dioxide, 5-10 pts. wt. nano graphene, 4-6 pts. wt. nano-calcium sulfate, 15-22 pts. wt. polyvinyl alcohol and 10-15 pts. wt. starch. USE - The nano-inorganic filler is useful in polyethylene (claimed); and polyethylene plastic. ADVANTAGE - The nano-inorganic filler: has excellent compatibility; and improves the mechanical properties and tensile strength polyethylene plastic. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for preparing nano-inorganic filler, comprising dispersing nano silica in an ethanol solution with a mass fraction of 50 wt.%, heating to 60 degrees C, and stirring at a speed of 250 revolutions/minute for 20 minutes to obtain nano silicon dioxide ethanol dispersion liquid, then adding 8 wt.% coupling agent to nano silicon dioxide ethanol dispersion liquid, heating to 80 degrees C, stirring at a speed of 1500 revolutions/minute for 42 minutes, filtering and drying to obtain final product, where the molar ratio nano silicon dioxide and ethanol is 1:10.1:10.