The invention discloses a modified PP special material for automobile bumpers and a preparation method thereof. The raw materials adopt recycled CPP and PP crushed materials, with the addition of 2-15% LLDPE, 8-25% barium sulfate and calcium carbonate, 1-5% aluminate coupling agent, 0.5-3% color masterbatch, as well as light stabilizers and lubricants. The main raw materials of the invention are recycled CPP and PP crushed materials. High-toughness and high-elongation LLDPE is used to toughen and modify recycled CPP and PP, and composite nano inorganic particles are introduced to achieve excellent modification effect and improve the comprehensive performance of recycled plastics. In addition, the preparation method is simple. The modified PP material prepared according to the raw material formula and preparation method of the invention is applied to automobile bumpers, which not only meets the performance and processing requirements of parts, but also greatly reduces enterprise production costs, realizes waste plastic recycling and reuse, turns waste into treasure, saves resources and protects the environment.

Area Code: CN

Application Number: CN201510183373.1