Improving the performance of communication cables: Study on the synergistic modification of expanded graphite and brucite powder

In the field of communication cables, the conductivity, thermal stability and flame retardant properties of materials are key indicators. The latest research progress shows that the synergistic modification of expanded graphite (EG) and brucite powder provides new possibilities for improving the performance of polyurethane composite materials for communication cables.

Preparation and performance impact of expanded graphite:

Researchers have explored a variety of methods for preparing expanded graphite, including HNO3 and H2SO4 co-insertion methods, step-by-step intercalation methods and electrolytic oxidation methods. These methods have a significant impact on the structure and properties of expanded graphite. Through these methods, expanded graphite with different properties can be obtained, which can be used to improve the performance of communication cables.

Coating modification of expanded graphite:

In order to improve the dispersion and conductivity of expanded graphite, researchers used unsaturated resin (UPR) to modify it. This modified expanded graphite can be used as a filler to prepare composite materials with excellent electrical conductivity, which is crucial for the signal transmission efficiency of communication cables.

Optimization of thermal conductivity:

In terms of thermal conductivity, research on the preparation and performance of expanded graphite/polyetherimide composite materials shows that the in-plane thermal conductivity of composite materials can be significantly improved through ball milling and thermal molding methods. This improvement is of great significance to the stability and reliability of communication cables in high temperature environments.

Research on flame retardant properties:

Research on modified magnesium hydroxide/expandable graphite composite flame retardancy reveals the flame retardant mechanism and research progress of magnesium hydroxide and expandable graphite. These studies not only improve the flame retardant properties of communication cables, but also enhance the environmental protection and safety of the materials.

These studies provide a theoretical basis and experimental methods for the development of expanded graphite brucite powder synergistically modified polyurethane composite materials for communication cables, which will help develop communication cable materials with better performance to meet the growing demand for communication technology.