Expansion type flame-retardant polypropylene composite

Abstract

The invention discloses an expansion type flame-retardant polypropylene composite, which comprises the following components by weight percentages: 65-75% of polypropylene resin, 18-23% of halogen-free flame retardant, 3-5% of toughening agent, 3-5% of compatibilizing agent, 0.5-1% of nano-montmorillonite, 0.1-0.5% of lubricant and 0.2-0.5% of antioxidant. The expansion type flame-retardant polypropylene composite overcomes the disadvantage of current technology and provides the expansion type flame-retardant polypropylene composite with high toughness which is capable of reducing the content of the flame retardant and effectively preventing hydrolysis.

Description

technical field [0001] The invention relates to an intumescent flame-retardant polypropylene composition. Background technique [0002] Polypropylene is a kind of thermoplastic resin produced by the polymerization of propylene. It has the advantages of low density, excellent mechanical properties, and good fluidity, and has quickly become one of the resins with the largest output in the world. A large number of molten droplets can easily spread flames. Therefore, in household appliances and other occasions with strict fire protection requirements, polypropylene must be modified by flame retardancy. [0003] The traditional flame retardant modification of polypropylene is the use of halogen / antimony flame retardant system, which has been widely used in polypropylene flame retardant modification and has developed rapidly since the successful development of Hooker Company in the United States in the 1950s. With the further use of flame retardants, people have gradually discove...

AI Technical Summary

Problems solved by technology

[0005] 1. The flame retardant performance is unstable, and the flame retardant content is relatively large;

[0006] 2. Strong hygroscopicity and easy hydrolysis;

[0007] 3. The toughness is greatly reduced

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