Why is Graphene So Popular? Insights from a Graphene Cooling Material Manufacturer
Overview: According to manufacturers of graphene cooling materials, traditional cooling materials like copper and aluminum are widely used in the field of electronic device cooling. Graphene, a newly emerging and highly competitive cooling material, offers excellent thermal conductivity, rapid heat dissipation (with air convection), lightweight, and flexibility.
Graphene cooling material manufacturers state that traditional cooling materials such as copper and aluminum are widely used in the field of electronic device cooling. However, graphene has emerged in recent years as a highly competitive cooling material, known for its excellent thermal conductivity, rapid heat dissipation (with air convection), lightweight, and flexibility.
Increased Power Consumption and Heat Dissipation Challenges
As electronic devices and products evolve towards higher integration and computational power, power consumption increases exponentially, making heat dissipation a pressing issue. Most traditional thermal conductive materials are metals (silver, copper, aluminum, etc.), metal oxides (Fe2O3, BeO, Al2O3), and other non-metallic materials (graphite, carbon black, AlN). For a long time, copper and aluminum have been widely used for heat dissipation in electronic devices and products. Graphene, however, stands out with its superior thermal properties and flexibility.
Thermodynamics of Graphene Cooling Films
Graphene cooling films dissipate heat through conduction, convection, and radiation. Specifically:
- Thermal Conduction: The CPU heat sink directly contacts the CPU to transfer heat away.
- Thermal Convection: Common cooling fans drive gas flow to facilitate heat transfer.
- Thermal Radiation: Heat is transferred via radiation.
In general, cooling systems (operating below 400°C) rely mainly on thermal conduction and convection. Thermal conduction depends on the thermal conductivity and heat capacity of the cooling material, while thermal convection depends on the cooling surface area.
Advantages and Applications of Graphene Cooling Films
Graphene cooling films are not a universal solution but offer significant advantages in certain applications. They are particularly effective in scenarios involving localized overheating, rapid heat transfer, and space constraints. Graphene cooling films can be used in conjunction with metal heat sinks when necessary.
Graphene cooling films are thin, flexible, and offer excellent overall performance, making them ideal for developing thin electronic products. They can be easily processed and combined with other film materials like PET. These films are elastic, can be cut and stamped into any shape, and can be bent multiple times. Graphene cooling films can convert point heat sources into area heat sources, providing rapid heat transfer and high thermal conductivity.
In limited spaces, graphene cooling films are ideal for thermal management or assisting in heat dissipation for power devices. They have a high lateral thermal conductivity, allowing for quick heat transfer horizontally, ensuring uniform heat distribution across the surface, and eliminating localized overheating.
Conclusion
The unique properties of graphene, such as high thermal conductivity, flexibility, and lightweight, make it a highly attractive material for modern electronic cooling applications. Its ability to efficiently manage heat in various scenarios, combined with its adaptability to different shapes and sizes, underscores its growing popularity in the electronics industry.