Preparation method and application of halogen-free environment-friendly flame retardant

Abstract

The invention discloses a preparation method and an application of a halogen-free environment-friendly flame retardant, and belongs to the technical field of macromolecular compounds and solves the problem of environment pollutions caused in the process of burning halogen flame retardants. The preparation method of the halogen-free environment-friendly flame retardant comprises the following steps of: mixing pentaerythritol, boric acid and phosphoric acid in a mole ratio of 1:(0.3-1.8):(0.5-2), reacting at a temperature of 100-180 DEG C, stirring and reacting for 3-7 hours to generate pentaerythritol phosphate borate; and adding melamine in a mole ratio of melamine to pentaerythritol of (1-3.2):1 and a solvent in a weight ratio of solvent to the total material of to (1-2):1 into the pentaerythritol phosphate borate, reacting at a temperature of 80-140 DEG C, stirring and reacting for 1.5-5 hours to generate pentaerythritol phosphate borate melamine salt suspension, filtering and drying. The application of the halogen-free environment-friendly flame retardant comprises processes of adding the halogen-free environment-friendly flame retardant and accessory ingredients into a rubber-plastic material, mixing and forming to instantly obtain anti-flaming rubber-plastic products. The halogen-free environment-friendly flame retardant can be widely applied to the rubber-plastic products.

Description

technical field [0001] The invention relates to a preparation method and application of a halogen-free environment-friendly flame retardant. Background technique [0002] With the development of the national economy, the application of rubber and plastic products is becoming more and more extensive. During the combustion process of rubber and plastic products, a large amount of thick smoke and toxic and harmful gases are generated, which causes great harm to the ecological environment and human health. The resulting fire Hidden dangers have become a global concern. Therefore, a certain amount of flame retardant must be added to rubber and plastic products. Flame retardants are an indispensable additive for rubber and plastic products. Since the REACH regulation implemented by the European Union in June 2007, the environmental protection of flame retardants and flame-retardant rubber and plastic products (in a sense, It can be said that it is halogen-free) is increasingly b...

AI Technical Summary

Problems solved by technology

The flame retardants produced and consumed in China are mainly organic bromine, organic halogen-phosphorus and other flame retardants. Traditional halogen flame retardants have high flame retardant efficiency, but they are accompanied by the generation of toxic and corrosive gases during combustion. , causing serious pollution to the environment and harm to the human body

In addition, the currently used halogen-containing flame retardants are not only polluting but also cost too much, which limits their wide-scale use