Application analysis of magnesium oxide in the cable industry

The application of magnesium oxide (MgO) in the cable industry is mainly reflected in the insulation materials and flame retardant materials of cables, especially in improving the safety, heat resistance, flame retardant performance, and long-term stability of cables. Here are a few examples of magnesium oxide in the cable industry

Analysis of important applications:

1. Enhanced flame retardant performance

Magnesium oxide, as an excellent halogen-free flame retardant, has a strong flame retardant effect. Magnesium oxide can be used in the production process of cables to improve their flame retardancy and prevent the spread of fire.

The flame retardant principle is mainly achieved through the following two methods:

Thermal decomposition: Magnesium oxide can absorb heat and release water vapor and carbon dioxide during decomposition, which helps to reduce flame temperature.

Formation of insulation layer: Magnesium oxide can form a stable magnesium oxide layer at high temperatures, protecting the internal structure of cables and reducing the spread of fire. Magnesium oxide has significant advantages in this regard, especially in the application of halogen-free cables (such as low smoke halogen-free cables), which meets modern environmental and safety requirements.

2. Improved heat resistance performance

Magnesium oxide has a high melting point (about 2800 ° C) and good thermal stability. Therefore, adding magnesium oxide to the insulation layer of cables can improve their working ability and safety under high temperature conditions, especially suitable for high temperature resistant scenarios such as power transmission cables, mining cables, and marine cables in high-temperature environments.

3. Insulation materials

Magnesium oxide itself is a good insulating material with excellent electrical insulation performance. Magnesium oxide can be used as a major component in the insulation material of cables, especially in high-voltage cables. In the insulation layer of high-voltage cables, magnesium oxide not only provides electrical isolation, but also improves the insulation strength of the cable, preventing leakage or electrical faults.

4. Improve mechanical strength

The addition of magnesium oxide can also enhance the mechanical strength of cables, especially in terms of pressure resistance and tensile strength. By optimizing the formula of magnesium oxide, cables can be made more wear-resistant and pressure resistant during production and use, and the service life of cables can be improved.

5. Improve the environmental performance of cables

Magnesium oxide, as an environmentally friendly, non-toxic, and halogen-free material, reduces the release of harmful substances, especially in the event of a cable fire. It is safer than traditional halogen flame retardants such as those containing chlorine or bromine. Therefore, magnesium oxide has been widely used in low smoke and halogen-free cables that comply with environmental regulations, especially in the fields of construction, public facilities, and transportation.

6. Aging resistance performance

Magnesium oxide has good oxidation resistance and can effectively reduce the aging problem of cable materials during long-term use. Magnesium oxide can prevent degradation of cable materials caused by environmental factors such as light, moisture, oxygen, etc., thereby improving the service life and reliability of cables.

7. Application Fields

The application of magnesium oxide is particularly prominent in the following cable fields:

High voltage cables: Due to their excellent electrical insulation performance, magnesium oxide is commonly used in the insulation layer of high-voltage power cables.

Mining cables: Cables used in mines require high flame retardancy and high temperature resistance, and magnesium oxide can meet these requirements.

Low smoke and halogen-free cables: To improve safety and environmental protection, magnesium oxide is widely used in the production of low smoke and halogen-free cables.

Ship and ocean cables: The application of magnesium oxide in ship and ocean cables helps improve the corrosion resistance and high temperature resistance of the cables.

8. Cost effectiveness

Compared with other flame retardants or insulation materials, magnesium oxide has a lower cost and higher efficiency. Using magnesium oxide can effectively reduce production costs while ensuring cable safety and performance.

The application of flame retardant magnesium oxide produced by Zhongmei Magnesium Industry in the cable industry is not limited to flame retardancy and insulation, but can also improve the overall performance of cables, such as heat resistance, mechanical strength, environmental friendliness, etc. With the increasingly strict environmental regulations and the growing demand for high-performance cables, the position of magnesium oxide in the cable industry will become increasingly important.