Carbon fiber reinforced halogen-free flame retardant polypropylene composite material and preparation method thereof

Abstract

The invention relates to a carbon fiber reinforced halogen-free flame retardant polypropylene composite material and a preparation method thereof, belonging to the technical field of high polymer materials. The carbon fiber reinforced halogen-free flame retardant polypropylene composite material consists of the following components: polypropylene, carbon fiber, red phosphorus flame-retardant masterbatch, a dispersing agent, an antioxidant and a pigment. The preparation method of the carbon fiber reinforced halogen-free flame retardant polypropylene composite material comprises the following specific steps: 1) surface oxidation treatment on carbon fiber; 2) preparation of the red phosphorus flame-retardant masterbatch; 3) mixing of raw materials; and 4) preparation of the product. The carbon fiber reinforced halogen-free flame retardant polypropylene composite material provided by the invention not only has good halogen-free flame retardance (the oxygen index is 25 or over which reaches the UL94-0 flame retardant grade standard, but also promises low smoke generation, and thus is an environment-friendly product and meets the export requirements of environmental regulations.

Description

Technical field [0001] The invention relates to a carbon fiber reinforced halogen-free flame-retardant polypropylene composite material and a preparation method thereof, belonging to the technical field of polymer materials. Background technique [0002] In recent decades, high polymer materials such as plastics, rubber, synthetic fibers and their products have developed vigorously. They are rapidly replacing traditional steel, metal, cement and natural materials such as wood and cotton, and are widely used in industry, agriculture, and military And other sectors of the national economy. [0003] However, most polymers are flammable and combustible materials. They have a large release rate during combustion, a high heat value, a fast flame propagation rate, and are not easy to extinguish. Sometimes they also produce dense smoke and toxic gases, causing harm to the environment and humans. Life safety poses a huge threat; currently flame retardant materials mainly include organic an...

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Problems solved by technology

[0003] However, most polymers are flammable and combustible materials, which have a large release rate, high calorific value, fast flame propagation rate, and are not easy to extinguish when burned. Sometimes they also produce dense smoke and toxic gases, causing harm to the environment and human health. Life safety poses a huge threat; currently flame retardant materials mainly include organic and inorganic, halogen and non-halogen; organic highly flame retardant materials are some flame retardants represented by bromine, nitrogen and red phosphorus and compounds, and inorganic Antimony trioxide, magnesium hydroxide, aluminum hydroxide, silicon series and other flame retardant systems

Most of the existing flame-retardant technologies are based on halogen-based additives. Although the prepared materials have obvious flame-retardant effects, certain halogen-based elements will volatilize when the halogen-based flame-retardant materials are heated, causing environmental pollution and affecting people's health. health hazard