▎ 摘　　要

NOVELTY - An alfalfa plant plastic composite material plate comprises 100 pts. wt. alfalfa stem powder or clover, 60-80 pts. wt. plastic particle, 10-12 pts. wt. ethylene acrylic acid copolymer, 0.1-0.5 pts. wt. modified graphene and 0.3-0.7 pts. wt. stearate. USE - Alfalfa plant plastic composite material plate used in home and office flooring. ADVANTAGE - The plate is environment-friendly, and has good shock resistance, creep resistance, and convenient maintenance. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for preparing the plate comprising taking graphite powder, putting in reaction container, adding 600-1000 pts. wt. N,N-dimethyl formamide, ultrasonically dispersing for 10-20 minutes, adding 1000-1500 pts. wt. toluene-2,4-diisocyanate, mixing at 20-30 degrees C for 20-30 hours, centrifugal separating, removing liquid, taking out the precipitate, using tetrahydrofuran for washing precipitate for 3-5 times, vacuum drying the precipitate for 24-48 hours to obtain modified graphene, adding modified graphene together with other materials in kettle, stirring for 6-10 minutes, extruding at 160-180 degrees C with mold head temperature of 170-200 degrees C to obtain graphene enhanced plastic particle, adding clover powder and ethylene acrylic acid copolymer, stirring for 6-10 minutes, and extruding at 170-190 degrees C with mold head temperature of 175-205 degrees C.