Analysis of Graphite Heat Dissipation Film and Its Industry Applications in One Article

Graphite film, also known asGraphite heat dissipation filmIn fact, it is a thermally conductive graphite sheet, which is a nano advanced composite material that can adapt to uniform thermal conductivity on any surface and has EMI electromagnetic shielding effect.

Graphene heat dissipation film is actually a brand new typeThermal conductive and heat dissipating materialsIt has a unique grain orientation, mainly conducting heat uniformly in two directions. The layered structure can adapt well to any surface, shielding heat sources and components while improving the performance of consumer electronic products.

The unique combination of heat dissipation and insulation properties of graphite thermal conductive sheets makes it an outstanding material choice for heat management solutions. Thermal conductive graphite sheets generally have ultra-high thermal conductivity within the range of 150-1500 W/m-K.

The chemical composition of thermal conductive graphite material is mainly a single carbon (C) element, which is actually a natural mineral element. Thin film polymer compounds can be graphitized into thin films under high temperature and high pressure through chemical methods. Because the carbon element in the graphite film is non-metallic, it has the conductivity and thermal conductivity of metallic materials, and also has plasticity like organic plastics. It also has special thermal properties, such as chemical stability, lubrication, and the ability to be coated on solid surfaces. Therefore, thermal conductive graphite has been widely used in many fields such as electronics, communication, lighting, aviation, and national defense.

Thermal conductive graphite materialIt can bring new technological solutions to the increasingly diverse industrial heat dissipation field through a series of different heat management solutions. Thermal conductive graphite material products also provide innovative new technologies for heat management in the electronic industry. Thermal conductive graphite also provides various solutions for better thermal conductivity while reducing device weight.

The heat dissipation graphite film effectively solves the thermal design problems of electronic devices, and graphite film is also widely used in the heat dissipation of electronic products. Graphite heat dissipation materials have been widely used in the communication industry, medical equipment, laptops, mobile phones, and other heat dissipation applications.

How to paste graphite for mobile phone heat dissipation?
The heat generated by the CPU/Flash chip on the PCB of the smartphone motherboard is evenly transferred to the metal steel bracket and frame in the middle through the graphite film, while quickly distributing the heat of the CPU high heating chip to the entire plane of the graphite film.

The heat of the chip is simultaneously transferred to the large graphite film on the surface of the steel support, and the heat is evenly dispersed in the plane, eliminating local hotspots and allowing the chip to operate within a suitable temperature range, maximizing its performance.

The graphite film heat dissipation of the smartphone PCB shielding cover mainly distributes heat evenly on the PCB motherboard, avoiding local hotspots and preventing the chip from exceeding the working temperature range to avoid crashes.

The heat inside the phone is redistributed through high thermal conductivity graphite film, effectively dissipated through the phone case and large-area touch screen, and evenly transferred to the outside of the phone through the low thermal conductivity of the case to maximize the surface area. The uniform temperature characteristic of graphite film can eliminate the temperature of local overheating of chips and solve the discomfort caused by prolonged handheld high temperature.