Expandable Graphite

Expandable graphite powder is prepared by acidifying, intercalating, washing, and drying natural flake graphite. When heated at high temperatures, it can expand to produce expanded graphite.

Expanded graphite has the characteristics of light weight, large specific surface area, loose and porous, and has good chemical compatibility with paraffin wax. Its three-dimensional porous structure can absorb liquid paraffin and prevent the leakage of liquid phase during the phase change process. At the same time, it has a high thermal conductivity, which can enhance the thermal conductivity of paraffin, thereby increasing the heat storage and release rate of phase change materials.

• High thermal insulation performance: Expandable graphite powder exhibits excellent thermal insulation performance in high temperature environments, effectively reducing heat loss and improving energy utilization efficiency.
• High fire protection performance: Under high temperature conditions, expandable graphite powder can expand into a dense structure, which plays a very good fire protection role and protects the safety of equipment and personnel.
• High temperature resistance: Expandable graphite powder can be used stably in high temperature environments above 1000°C. It has excellent high temperature resistance and meets the needs of high temperature processes.
• Environmentally friendly and healthy: Expandable graphite powder is non-toxic, harmless, and does not pollute the environment. It is a green and environmentally friendly material that meets current environmental protection requirements.
• Excellent adsorption performance: Expandable graphite powder has a large specific surface area and a loose and porous structure, and can adsorb a large amount of organic matter and other substances.
• Good electrical and thermal conductivity: Expandable graphite powder has a high thermal conductivity, which can enhance the thermal conductivity of composite materials and increase the rate of heat storage and release. At the same time, its excellent conductive properties make it widely used in electronics, electrochemistry and other fields.
• Self-lubricating: Expandable graphite powder has self-lubricating properties, which can reduce the friction coefficient during the friction process, reduce wear, and increase the service life of the equipment.
• Corrosion resistance: It has stable chemical inertness, can adapt to most acids, alkalis, salt solutions, seawater, steam organic solvents and other media, and shows good corrosion resistance.