Magnesium hydroxide plays a number of key roles in polyamide PA, which stem from its unique physical and chemical properties.
Flame retardant properties: At high temperatures, magnesium hydroxide can decompose and release water vapour, this reaction not only absorbs a large amount of heat and reduces the temperature of the material, but also dilutes the concentration of flammable gases, thus effectively inhibiting the spread of flames.In addition, magnesium hydroxide also promotes charring and the formation of a protective layer, which further enhances the flame retardant effect.
Thermal stability: The decomposition reaction of magnesium hydroxide is heat-absorbing, which helps to stabilise the processing temperature of polyamide PA, slowing down the process of thermal degradation and extending the service life of the material.
Enhanced Mechanical Properties: As a filler, magnesium hydroxide can increase the strength and hardness of polyamide PA, while its microcrystalline structure makes it easy to be mixed evenly with polyamide PA to improve the overall performance.
Thermal conductivity: Magnesium hydroxide has a high thermal conductivity, which significantly improves the thermal conductivity of polyamide PA, making it suitable for applications that require rapid heat dissipation.
Cost reduction: Magnesium hydroxide, as a relatively inexpensive raw material, can reduce the production cost of polyamide PA to a certain extent, achieving a balance between cost and performance.
Environmentally friendly and sustainable: Magnesium hydroxide is non-toxic and non-hazardous, easy to recycle and reuse, in line with the requirements of environmental protection and sustainable development.
