High-performance flame-retardant polypropylene composite material and preparation method thereof

Abstract

The invention discloses a high-performance flame-retardant polypropylene composite material and a preparation method thereof. The composite material is prepared from the following components in parts by weight: 70-90 parts of polypropylene, 12-17 parts of a microencapsulated nano carbon black coated ammonium polyphosphate flame retardant, 0.2-0.6 part of a heat stabilizer and 0.4-0.6 part of a processing aid. By preparing the microencapsulated nano carbon black coated ammonium polyphosphate as the flame retardant, on one hand, agglomeration of ammonium polyphosphate can be prevented, and the dispersion effect is improved; on the other hand, during combustion of the material, in the process that ammonium polyphosphate exerts a gas-phase flame-retardant effect, carbon black on the surface forms a carbon layer, and continuous combustion of the material is prevented; the carbon black coated ammonium polyphosphate flame retardant has a good waterproof effect, precipitation is prevented, and the long-acting flame retardant efficiency of the material is kept. The flame retardant is different from a traditional halogen-free flame retardant, the V-0 flame retardant effect can be achieved only with a small addition amount, and the mechanical property of the material can be kept to a greater extent.

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