▎ 摘　　要

NOVELTY - Plastic wood plate comprises 100-200 pts. wt. wood powder, 30-50 pts. wt. calcium carbonate powder, 25-40 pts. wt. kaolin powder, 1-2 pts. wt. graphene, 4-6 pts. wt. aluminate coupling agent, 20-50 pts. wt. maleic anhydride-grafted plastic particles, 20-50 pts. wt. plastic particles, 0.45-0.7 pts. wt. calcium stearate, 0.25-0.3 pts. wt. antioxidant, 0.1-0.5 pts. wt. polyethylene glycol, and water (remaining amount). USE - Used as plastic wood plate. ADVANTAGE - The plastic wood plate: has easy cutting and opening; has strong compression resistance, bending resistance, impact resistance, waterproof and corrosion resistance, and good weather resistance; and has no formaldehyde, and good flame retardancy and recyclability. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for preparing the plastic wood plate, comprising: (i) respectively sieving wood powder through 40-100 mesh screen and calcium carbonate powder through 200-400 mesh screen; (ii) drying wood powder at 100 degrees C for 2-4 hours, adding into container with heating stirrer for stirring, heating to 120 degrees C, adding aluminate coupling agent, and uniformly stirring to obtain coupling agent-modified wood powder; (iii) uniformly mixing calcium carbonate powder with water, heating to 80-90 degrees C, adding polyethylene glycol, reacting for 30-60 minutes, filtering, drying filtered material at 60-70 degrees C for 5-9 hours, grinding, and sieving through 200-400 mesh screen to obtain active calcium carbonate powder; (iv) placing plastic particles, maleic anhydride-grafted plastic particles, active calcium carbonate powder and calcium stearate in mechanical stirring tank, stirring for 5-10 minutes, extruding and granulating under extruder barrel temperature of 150-200 degrees C and die head temperature of 180-240 degrees C to obtain modified plastic particles; and (v) placing coupling agent-modified wood powder, modified plastic particles, kaolin powder, graphene and antioxidant in mechanical stirring tank, stirring for 10 minutes, uniformly mixing, melt-blending and extruding by using extruder under extruder barrel temperature of 180-200 degrees C and die head temperature of 190-210 degrees C, and shaping by using flat die.