▎ 摘　　要

NOVELTY - Wood surface anti-cracking flame-retardant coating comprises 70-95 pts. wt. base emulsion, 10-16 pts. wt. anti-cracking agent, 5-7 pts. wt. strengthening agent, 14- 20 pts. wt. composite flame retardant filler suspension, 15-18 pts. wt. preservative, 11-15 pts. wt. pigment and 3.5-5 pts. wt. anti-aging agent. The preparation method of composite flame retardant filler suspension comprises (i) dispersing graphene oxide into a saturated liquid containing calcium (II)ion, magnesium (II) ion and aluminum (II) ion for continuous stirring, performing solid-liquid separation, collecting graphene solid product and liquid phase A; (ii) dispersing graphene solid product in deionized water; (iii) dispersing multi-walled carbon nanotubes in the liquid phase A, performing solid-liquid separation; and (iv) adding thickener into the liquid phase C to form a glue, and adding liquid phase B dropwise under stirring until the precipitation of the precipitate is completed. USE - Used as wood surface anti-cracking flame-retardant coating. ADVANTAGE - The wood surface anti-cracking flame-retardant coating not only improves the crack resistance of the wood surface coating, but also improves the dispersibility of the anticoating additive in the coating, and ensures the coating to obtain more uniform and effective anti cracking ability. DETAILED DESCRIPTION - Wood surface anti-cracking flame-retardant coating comprises 70-95 pts. wt. base emulsion, 10-16 pts. wt. anti-cracking agent, 5-7 pts. wt. Strengthening agent, 14- 20 pts. wt. composite flame retardant filler suspension, 15-18 pts. wt. preservative, 11-15 pts. wt. pigment and 3.5-5 pts. wt. anti-aging agent. The preparation method of composite flame retardant filler suspension comprises (i) dispersing graphene oxide into a saturated liquid containing calcium (II)ion, magnesium (II) ion and aluminum (II) ion for continuous stirring, performing solid-liquid separation, collecting graphene solid product and liquid phase A; (ii) dispersing graphene solid product in deionized water, adding carbonate ion and carrying out hydrothermal reaction under continuous stirring conditions, performing solid-liquid separation after completion, where obtained solid product is the anti-cracking agent and allowing to stand to obtain liquid phase B; (iii) dispersing multi-walled carbon nanotubes in the liquid phase A and allowing to stand, performing solid-liquid separation, collecting the solid product of the multi-walled carbon nanotubes and the liquid phase C respectively, adding multi-walled carbon nanotubes solid product into the alkaline ethanol solution for reaction and separating the solid phase product after completion to obtain the enhancer; and (iv) adding thickener into the liquid phase C to form a glue, and adding liquid phase B dropwise under stirring until the precipitation of the precipitate is completed. An INDEPENDENT CLAIM is also included for preparing coating comprising adding anti-cracking agent and strengthening agent into the composite flame retardant filler suspension and mixing uniformly, adding into the matrix emulsion, mixing uniformly evenly, adding preservative, pigment and anti-aging agent and mixing uniformly.