| abstract |
The present invention relates to a kind of polypropylene material and preparation method thereof, especially a kind of halogen-free polypropylene flame redardant micro-foaming material and preparation method thereof, belongs to technical field of polymer materials.The raw material of the present invention is made of the component of following parts by weight：50 70 parts of polypropylene, 15 parts of compatilizer, 5 20 parts of filler, 0.5 5 parts of foaming agent master batch, 28 parts of organic silicon fibre retardant, 15 25 parts of expansion type flame retardant, 0.2 2 parts of antioxidant.Its advantage is：Using organosilicon and expansion type flame retardant compounding synergistic flame-retarded technology, heat endurance of the expansion type flame retardant during composite processing is improved, scattered and interface cohesion of the fire retardant in polypropylene matrix is improved using compatilizer；The halogen-free polypropylene flame redardant micro-foaming material with lightweight feature is obtained by using injection fretting map technology, fire-retardant rank reaches V0 grades of UL94, has widened polypropylene micro-foaming material application range.This material can be used for the such as field such as electric tool, electronic apparatus, automobile, building, packaging, shipbuilding. |