Preparation method of core-shell structure simaldrate composite fire retardant for wire cable

Abstract

The invention relates to a preparation method of core-shell structure simaldrate composite fire retardant for a wire cable. The preparation method comprises the following steps: step 1), preparing rawmaterials; step 2) putting ethanol into a reaction still, opening the reaction still, and then putting nanometer magnesium hydroxide, nanometer basic magnesium carbonate and nanometer aluminum hydroxide into the reaction still to prepare a first slurry; step 3) adding ethyl orthosilicat and aminopropyl methyl diethoxyl silane in the reaction still, continuously stirring and reacting the ethyl orthosilicate and aminopropyl methyl diethoxyl silane with the first slurry to prepare the second slurry; step 4), squeezing and filtering the second slurry, and alternatively washing the solid part of the second slurry by using water and ethanol in the filtering process, and then drying the solid part of the second slurry to obtain the core-shell structure simaldrate composite fire retardant. Through the preparation method provided by the invention, the interaction force between the fire retardant and the synergist, the material mechanical property is good, and the fire retardance is high.

Description

technical field [0001] The invention relates to a preparation method of a core-shell structure nano-silicon-magnesium-aluminum composite flame retardant for wires and cables, and belongs to the technical field of processing flame retardants for wires and cables. Background technique [0002] In the processing of wire and cable, flame retardant is an indispensable material. Flame retardant is a functional additive that imparts flame retardancy to flammable polymers. The current pure magnesium-based flame retardants and silicon-based flame retardants The flame retardant composite material has the problems of poor flame retardancy and poor mechanical properties, which affects the flame retardancy of wires and cables and affects the quality of wires and cables. Contents of the invention [0003] The object of the present invention is to provide a method for preparing a core-shell structure nano-silicon-magnesium-aluminum composite flame retardant for electric wires and cables ...

AI Technical Summary

Problems solved by technology

[0002] In the processing of wire and cable, flame retardant is an indispensable material. Flame retardant is a functional additive that imparts flame retardancy to flammable polymers. The current pure magnesium-based flame retardant and silicon-based flame retardant Flame retardant composite materials have poor flame retardancy and poor mechanical properties, which affects the flame retardancy of wires and cables and affects the quality of wires and cables.