Analysis of the flame retardant mechanism and advantages of magnesium hydroxide

 1. Overview

As people’s awareness of environmental protection rises, and the country’s environmental protection of rubber and plastic, cable, coating and other industries is becoming more and more strict, the development of low toxicity, low smoke environmental protection flame retardants will become the pursuit of China’s flame retardant industry goal.

2. The Flame Retardant Mechanism of Magnesium Hydroxide

The thermal decomposition temperature of magnesium hydroxide is high, the initial decomposition temperature is 340 degrees, the complete decomposition temperature is 490 degrees. Thermal decomposition produces water, while absorbing a large amount of heat. Its total absorption is 44.8kj/mol, about 17% higher than aluminum hydroxide, the hardness is lower than aluminum hydroxide, smoke suppression performance is significantly better than aluminum hydroxide, so magnesium hydroxide compared with other flame retardant materials can withstand the processing temperature is better, conducive to speed up the extrusion speed, shorten the molding time, while improving the flame retardant efficiency…

https://tibetmag.com/the-flame-retardant-mechanism-and-advantages-of-magnesium-hydroxide/

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