Nitrogen-phosphorus flame retardant and preparation method thereof

Abstract

The invention relates to the technical field of flame retardants, and discloses a nitrogen-phosphorus flame retardant and a preparation method thereof. The nitrogen-phosphorus flame retardant comprises the following components in percentage by weight: 5%-10% of a nano flame retardant, 5%-8% of a nitrogen-phosphorus flame retardant, 5%-10% of a vulcanizing agent, 3%-5% of hydrotalcite, 5%-10% of montmorillonite, 10%-15% of zirconium phosphate, 1%-5% of graphite oxide, 5%-10% of a flame-retardant synergist, 1%-5% of boric acid, 2%-5% of zinc borate, 1%-5% of boron phosphate, 5%-9% of silicon dioxide, 1%-5% of aluminum hydroxide, 1% 4% of magnesium hydroxide, 2%-5% of phosphorus oxychloride, 3%-6% of molybdenum disicide and 4%-8% of pyrophosphoric acid. The nano flame retardant is crushed by the crusher, water is added into the nitrogen-phosphorus flame retardant for mixing, the hydrotalcite is heated, the silicon dioxide is crushed by the crusher, and the graphite oxide is ground by a grinding machine. The nitrogen-phosphorus flame retardant and the preparation method thereof have the advantages that the nitrogen-phosphorus flame retardant is convenient to stretch, the breaking strength of the flame retardant is high, the production cost is reduced, the process steps are simplified, the production efficiency is improved, and large-scale production is convenient.

Description

technical field [0001] The invention relates to the technical field of flame retardants, in particular to a nitrogen-phosphorus flame retardant and a preparation method thereof. Background technique [0002] Flame retardant, a functional additive that imparts flame retardancy to flammable polymers, is mainly designed for the flame retardant of polymer materials. There are many types of flame retardants, which are divided into additive flame retardants and reaction Additive flame retardants, additive flame retardants are added to polymers by mechanical mixing to make polymers flame retardant. At present, additive flame retardants mainly include organic flame retardants and inorganic flame retardants, halogenated flame retardants Flame retardant and non-halogenated. [0003] At present, flame retardants are developing rapidly. However, some flame retardants have poor effects and are inconvenient to resist stretching. Some flame retardants have low breaking strength and high p...

AI Technical Summary

Problems solved by technology

[0005] Aiming at the deficiencies of the prior art, the present invention provides a nitrogen-phosphorus flame retardant and a preparation method thereof, which have the advantages of convenient tensile resistance, high breaking strength of the flame retardant, reduced production costs, simplified process steps, and improved production efficiency , convenient for large-scale production and other advantages, solve the poor effect of some flame retardants, inconvenient anti-stretch, low breaking strength of some flame retardants, high production costs, complex process steps, affect production efficiency, and inconvenient to carry out The problem with mass production