Important role of chemical magnesium hydroxide in wires and cables
Publish Time: 2025-04-03
In modern society, wires and cables are important carriers of power transmission and information transmission, and their safety, reliability and durability are crucial. As an efficient and environmentally friendly flame retardant, chemical magnesium hydroxide plays a pivotal role in the manufacturing process of wires and cables.Magnesium hydroxide is an inorganic compound with characteristics such as alkalinity, insolubility and thermal stability. In the field of wires and cables, magnesium hydroxide is mainly used as a flame retardant. Flame retardants are chemical substances that can prevent or slow down the combustion process. Through physical or chemical effects, they reduce the flammability of materials and thus prevent the spread of fire. As an environmentally friendly flame retardant, magnesium hydroxide plays multiple roles in wires and cables.The flame retardant mechanism of magnesium hydroxide is mainly based on its endothermic decomposition and the generation of water vapor. At high temperatures, magnesium hydroxide decomposes and releases crystal water, and this process requires the absorption of a large amount of heat. This endothermic reaction can significantly reduce the temperature around the wires and cables, thereby slowing down the combustion rate and winning precious time for fire rescue and personnel evacuation. At the same time, the water vapor produced by the decomposition of magnesium hydroxide can also dilute the concentration of oxygen and combustible gases in the air, further inhibiting the combustion reaction. This dual flame retardant mechanism makes magnesium hydroxide an ideal flame retardant in the field of wires and cables.In addition to flame retardant properties, magnesium hydroxide also plays other important roles in wires and cables. First, the addition of magnesium hydroxide can significantly improve the mechanical strength of wires and cables. As an inorganic flame retardant, magnesium hydroxide particles can fill the gaps in wire and cable materials and increase the density of the materials. This increase in density makes wires and cables more tough and less prone to damage when subjected to external forces. Therefore, the addition of magnesium hydroxide can extend the service life of wires and cables and reduce the frequency of replacement, thereby saving resources and costs.Secondly, the addition of magnesium hydroxide can also improve the flexibility of wires and cables. Unlike some flame retardants that affect the flexibility of materials, magnesium hydroxide has little effect on the flexibility of wire and cable materials. This helps to maintain the softness and bendability of wires and cables, making it easier to lay and install them in various complex environments. Especially in situations where frequent bending or movement is required, such as robot cables, wearable device cables, etc., the addition of magnesium hydroxide is particularly important.In addition, magnesium hydroxide also has good compatibility and processing performance. In the processing of wire and cable materials, magnesium hydroxide can be well compatible with other ingredients, and it is not easy to react chemically or produce phase separation. This makes it easier to mix wire and cable materials containing magnesium hydroxide during the preparation process, improving production efficiency and product quality stability. At the same time, the tiny particle size and special surface properties of magnesium hydroxide make it have good fluidity and dispersibility in wire and cable materials. This is conducive to making the material pass through the mold more smoothly during the extrusion molding of wires and cables, reducing the generation of internal defects, and improving the surface smoothness and dimensional accuracy of wires and cables.Most importantly, magnesium hydroxide, as an environmentally friendly flame retardant, conforms to the concept of modern green production and sustainable development. During the production, use and disposal process, magnesium hydroxide has no harmful substances emitted and will not cause harm to the environment and human health. This feature makes magnesium hydroxide the preferred material for enterprises pursuing sustainable development in the field of wires and cables.In summary, chemical magnesium hydroxide plays multiple important roles in wires and cables. Its high flame retardant properties, enhanced mechanical strength, improved flexibility, good compatibility and processing performance, and environmental protection characteristics make magnesium hydroxide an indispensable and important material in the field of wires and cables.
