Halogen-free high-flame-retardancy sheet-shaped mold material and preparation method thereof

The invention discloses a halogen-free high-flame-retardancy sheet-shaped mold material and a preparation method thereof, the halogen-free high-flame-retardancy sheet-shaped mold material comprises byweight: 40-100 parts of unsaturated resin, 30-80 parts of a low-shrinkage agent, 1-10 parts of a catalyst, 1-10 parts of a coupling agent, 1-10 parts of an auxiliary agent, 200-300 parts of a flame-retardant modifier and 1-10 parts of a thickening agent. In the combustion process, the material has the properties such as the heat release rate reaching less than or equal to 45 kW/m , the minimumstreet-facing thermal radiation reaching 30 kW/m or more, the smoke density Ds4 reaching less than or equal to 150, or VOF reaching less than or equal to 300, and the smoke toxicity CITg reaching less than or equal to 0.75; the flame retardancy is improved, the high mechanical strength is met, the tensile strength is larger than or equal to 100 MPA, the bending strength is larger than or equalto 160 MPA, the impact toughness