A kind of polymerized flame retardant integrated with boron, nitrogen and phosphorus and preparation method thereof

Abstract

A boron, nitrogen and phosphorus-integrated polymerized flame retardant and a preparation method thereof relate to a flame retardant and a preparation method thereof. First, dissolve diethanolamine borate and dipentaerythritol dichlorophosphate with a solvent and put them into a reactor, react at a certain temperature for 1~3 hours, heat to the boiling point of the solvent, and distill the solvent under reduced pressure. Under vacuum conditions, use the melt polymerization method to react at a certain temperature for 1~4h. After the reaction, continue to vacuum until the temperature of the reactor drops to room temperature, and grind to obtain a bright yellow powder. After washing with reagents, filtering, and vacuum drying, you can get flame retardant agent. The boron, nitrogen, and phosphorus flame retardant has good char formation, is halogen-free, and has remarkable flame retardant effect, especially containing three elements of boron, nitrogen, and phosphorus, which not only makes the flame retardant effect better, but also boron element also has smoke suppression effect and reduces flame retardancy. The flame retardant has advantages such as the toxicity of the flame retardant, which makes the flame retardant have a wide range of application values. Can be used for flame retardancy of polyolefin materials. Molecular structure of "boron nitrogen phosphorus integrated" polymeric boron nitrogen phosphorus flame retardant.

Description

technical field [0001] The invention relates to a flame retardant and a preparation method thereof, in particular to a boron, nitrogen and phosphorus-integrated polymerized flame retardant and a preparation method thereof. Background technique [0002] Since entering the 21st century, polymer materials and their products have been more and more vigorously developed and widely used in various fields, but most polymer materials have some fatal shortcomings, such as: easy to burn, and when burned The speed is fast, accompanied by the release of a large amount of toxic gas. According to the statistics of relevant departments, the real culprit that causes a large number of casualties in fire accidents is not the burning of flames, but the suffocation or poisoning caused by the smoke and toxic gases released during the burning of materials. It can be seen that the evaluation of materials is no longer limited to its use and processing performance, but also needs to pay attention t...

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Problems solved by technology

However, the boron-containing compounds reported above all have hydrolytic instability, which has a greater impact on the flame retardant efficiency, and secondly, poor compatibility with polymers, which also has a greater impact on the mechanical properties of the material.

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