Superfine plant fiber powder modified PLA (polylactic acid) fully biodegradable foaming material

The invention discloses a superfine plant fiber powder modified PLA (polylactic acid) fully biodegradable foaming material, which is prepared from the following raw materials in percentage by weight: 45 to 70 percent of plant fiber powder, 30 to 50 percent of PLA, 1 to 2 percent of maleic anhydride, 5 to 6 percent of flexibilizer, 1 to 2 percent of modified glycerol, 0.3 to 0.4 percent of KH550, 0.25 to 0.45 percent of added particles, 10 to 15 percent of silicon dioxide and 0.25 to 0.45 percent of antioxidant. According to the superfine plant fiber powder modified PLA fully biodegradable foaming material provided by the invention, a buffering foaming material can be manufactured through foaming agent amount foaming molding, gas foaming molding and hot press molding, the cost of the material can be reduced to the maximum extent by using a large amount of degradable materials, degradation is facilitated, pollution is reduced, and the environment is protected. Meanwhile, certain toughness and rigidity are provi