Abstract: Abstract: In order to study the influence of experimental parameters on the properties of magnesium based inorganic particleboard in the production process and the influence of various parameters on the flame retardant properties of the board, the single factor experiment method was used to study the influence of different densities on the physical and mechanical properties and combustion properties of the board. And the orthogonal experimental study was set on the 4 factors of concentration of acrylic glue, enhance agent, inorganic adhesive glue content, moisture content of the slab which affect the performance of the plate, and the only sheet made of MDI adhesive was set as control group, the contrast analysis of different inorganic particle boards' heat total release, heat release rate, smoke production, smoke production rate, was conducted. When the density of board is 0.95 g/cm3, the concentration of water-based adhesive is 7.5%, the dosage of reinforcing agent is 2.5%, the amount of inorganic adhesive is 50%, and the water content of paving is 23%, the performance of board is the best, with all performances meet the requirements of non-combustible P2 particleboard in the national standard GB/T 39032-2020, Non-combustible Particleboard.

Key words: Key words: inorganic particleboard, flame retardant property;magnesium-based inorganic adhesive, CONE