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Thermal material die-cutting graphite sheet material Introduction
- 2019-03-11-

Graphite sheet is a brand-new guideThermal material die-cutting, Uniform thermal conductivity along two directions, shielding heat sources and components while improving the performance of consumer electronic products.

First, graphite sheet Overview:

With the acceleration of the upgrading of electronic products and the growing demand for thermal management of Mini, high integration and high-performance electronic devices.This new natural graphite solution, high heat dissipation efficiency, small footprint, light weight, uniform thermal conductivity along two directions, eliminate "hot spot" areas, shielding heat sources and components at the same time improve the performance of consumer electronic products.

Second, the main use of graphite sheet:

1, used in notebook computers, high-power LED lighting, flat panel display, digital cameras, mobile phones, etc., product characteristics: The surface can be combined with metal, plastic, non-adhesive and other materials to meet more design functions and needs.

2. Graphite SheetThermal material die-cuttingPrinciple: A typical thermal management system consists of an external cooling device, a radiator and a thermal cross section. The important function of the heat sink is to create the largest effective surface area, on which the heat is transferred and the external cooling medium is taken away.

3, graphite heat sink is through the uniform distribution of heat in the two-dimensional plane so as to effectively transfer heat, to ensure thatPrecision Die CuttingThe component works at the temperature it is subjected to. Excellent thermal conductivity: 150~1200W/M.K, than metal thermal conductivity is better.

4, light weight, the specific gravity is only 1.0~1.3 soft, easy to operate. Thickness: 0.012-1.0mm Adhesive: 0.03 mm ultra-thin 0.012MM heat conduction coefficient plane conduction 300-1200W/m.k vertical conduction 20-30 W/M.K temperature resistance 400 ℃Low thermal resistance, light heat resistance: hot resistance is 40% lower than aluminum, 20% lighter than copper: weight 25% lighter than aluminum, 75% lighter than copper.


Third, graphite sheet physical Parameters table:

Test projects

Test method

Unit

3K-SBPTest values

Colors color

Visual


Black

Material Material



Natural Graphite

Thickness Thickness

ASTM D374

Mm

0.03-2.0

Specific Gravity Specific Gravity

ASTM D792

G/cm

1.5-1.8

Temperature resistant range Continuous with Temp

EN344

-40~+400

Tensile strength

Tensil Strength

ASTM F-152

4900kpa

715PS

Volumetric Resistors

Volume Resistivity

ASTM D257

Ω/CM

3.0*10

Hardness Hardness

ASTM D2240

Shore A

>80

Flame Retardant Flame Rating

UL 94


V-0

Thermal conductivity (Vertical direction) ConductivityVertical direction

ASTM D5470

W/m-k

25

Thermal conductivity (Horizontal direction) ConductivityHorizontal direction

ASTM D5470

W/m-k

500-1200

Graphite heatsink can be smooth attached to any plane and curved surface, and can be any form of cutting according to the needs of customers.