Preparation of magnesium hydroxide by organic amine method and its advantages in flame retardant applications
Organic amine method, an innovative magnesium hydroxide preparation technology, uses organic amine as a precipitant to provide precise control of the morphology and particle size distribution of magnesium hydroxide particles, thereby optimizing its application performance in the flame retardant field.
Preparation of magnesium hydroxide by organic amine method
Principle: Organic amines such as di-n-butylamine are used to react with magnesium salts to generate magnesium hydroxide precipitation to achieve control of particle characteristics.
Process: The reaction is carried out under specific temperature, pH value and stirring speed conditions, and the magnesium hydroxide of the required specifications is obtained by adjusting the reaction parameters.
Advantages
Morphology and particle size control: The organic amine method can form uniform particles and improve the morphology control ability.
Reduce agglomeration: Reduce agglomeration in subsequent treatment and optimize product performance.
Flame retardant performance
Endothermic reaction: Magnesium hydroxide decomposes and absorbs heat, reduces the surface temperature of the material, and slows down combustion.
Moisture release: The generated water vapor dilutes oxygen and combustible gases, inhibiting the spread of flames.
Surface isolation: The generated magnesium oxide forms a protective film to isolate oxygen and heat.
Carbonization: Promotes carbonization of the polymer surface to form an insulation layer.
Synergistic effect: Used in combination with other flame retardants to improve flame retardant efficiency.
Chemical reaction formula
Mg(OH)2→MgO+H2OMg(OH)2→MgO+H2O
Application areas
Rubber and plastic industry: Improve the flame retardant properties of materials.
Chemical and building materials fields: As an environmentally friendly flame retardant.
Electronic and cable materials: Ensure the safety performance of electronic equipment.
Unsaturated polyester and coatings: Improve the fire resistance level of products.
Magnesium hydroxide prepared by organic amine method, with its excellent flame retardant properties and improvement of composite material properties, provides efficient and environmentally friendly solutions for industrial applications. This method has broad development prospects and is expected to be more widely used in the future.