Preparation method of functional magnesium hydroxide flame retardant and flame retardant prepared through method

Abstract

The invention relates to a preparation method of a functional magnesium hydroxide flame retardant and the flame retardant prepared through the method. The preparation method comprises the steps that 1, water, ethyl alcohol and ethylene glycol are mixed to obtain a solvent; 2, magnesium salt is dissolved into the solvent to obtain a magnesium salt solution; 3, a surfactant is added into the magnesium salt solution to obtain first liquid, and the first liquid is subjected to ultrasound and then placed in a water bath container with the constant temperature and keeps to be stirred at uniform velocity; 4, an ammonia water solution is dropwise added into the stirred first liquid until the pH of mixed liquid is 9.5-10, and after reacting is conducted, second liquid is obtained; 5, after standing is conducted on the second liquid at room temperature, the second liquid is washed with water and ethyl alcohol sequentially under vacuum filtration and then dried and ground to obtain the functional magnesium hydroxide flame retardant. The functional magnesium hydroxide flame retardant prepared through the method can be better combined with plastic, and the good flame retardance can be significantly achieved only needing a little filling amount of the flame retardant.

Description

technical field [0001] The invention relates to a flame retardant, in particular to a preparation method of a functional magnesium hydroxide flame retardant and a flame retardant prepared by the method. Background technique [0002] With the development of the polymer material industry, the three major synthetic materials (plastic, synthetic rubber, synthetic fiber) are more and more widely used in various fields of production and life. The fires caused by the flammability of these organic polymers have also caused heavy casualties and huge economic losses. Therefore, the flame retardancy of polymer materials has attracted global attention. Since the 1960s, some industrially developed countries have begun to produce and apply flame-retardant plastics, flame-retardant rubber and flame-retardant textiles. With the development of electrical appliances, electronics, machinery, automobiles, ships, aviation, aerospace and chemical industry, the requirements for flame retardant of...

AI Technical Summary

Problems solved by technology

[0006] The magnesium hydroxide flame retardant prepared by the conventional preparation method cannot be well combined with plastics, so it needs a large filling amount in application, and often requires a large cost to significantly improve the flame retardant performance of the material