PP/PA6 porous composite material and preparation method thereof

The invention discloses a PP/PA6 porous composite material, which is prepared from the following raw materials in parts by weight: 50 to 70 parts of PP, 30 to 50 parts of PA6 resin, 5 to 8 parts of epoxy chain extender, 3 to 7 parts of compatilizer, 20 to 35 parts of modified AF fiber, 0.4 to 0.6 part of foam stabilizer and 3 to 15 parts of modified nano nucleating agent. The invention also discloses a preparation method of the PP/PA6 porous composite material, the PP/PA6 composite material is sequentially subjected to melting, extrusion granulation and gas-assisted mold opening and closing microcellular foaming injection molding processes to obtain the composite material, and the prepared PP/PA6 porous composite material has the advantages of good melting formability, high foaming ratio, high percentage of close area and uniform and moderate size; the tensile strength is high, and the comprehensive mechanical property is good; the density is small, the characteristic of light weight is realized, and the use