High-reflection PC reflection master batch and preparation method thereof

The invention provides a high-reflection PC reflector plate master batch. The high-reflection PC reflector plate master batch is prepared from the following raw materials in percentage by weight, 35-45% of PC material, 50-60% of inorganic particles, 1-2% of a stabilizer, 4-5% of a dispersing agent, 0.5-1% of a toughening agent, 1-3% of organic diffusion particles and 0.5-3% of a flame retardant. The preparation method comprises the following steps: mixing the components in the above proportion, and then mixing the components in a high-speed mixer for 10-20 minutes for pretreatment; feeding anobtained mixed raw material into a double-screw extruder by using a precisely metered feeding device, and fully melting and compounding the mixed raw material under screw high-speed shearing, mixing and conveying to obtain a molten mixture; and carrying out bracing, cooling and dicing on the obtained molten mixture to finally obtain a finished product. The high-reflection PC reflector plate masterbatch prepared in the inv