Graphite Sheet

GRAPHINTY™

Graphite Sheet Stickers

GRAPHINITY is a high thermal conductive graphite sheet that has been developed through our high polymer technologies and ultra heat treatment techniques. This material can spread heat from a heat source quickly, and can decrease the temperature of it.

High Quality Graphite Sheet Supplier Malaysia

Uses and Typical Applications

GRAPHINITY graphite sheet works on the heat management of small electronic devices such as mobile phone and mobile console, mobile PC, projector, in-car electronic device and so on.

(A) Insulation layer / Graphite / Adhesive layer

(B) Adhesive layer / Graphite / Adhesive layer

(C) Graphite / Adhesive layer

(D) Insulation layer / Graphite / Insulation layer

(E) Graphite / Insulation layer

*PSA : Pressure sensitive adhesive

Technical data 1 : Thermal diffusion effect

Comparison of heat spreading ability of some materials

GRAPHINITY graphite sheet has much larger heat spreader ability than copper and aluminum which has same thickness.

Heat source : 10mm square ceramic heater, wattage 2.0W, sample size : 50mm square, open cooling. The back surface of chip was measured. Displayed temperature is the center of the sample. These data are not guaranteed values but the typical measurement values at our company.

Application to a LED back light of mobile phone (Simulation)

GRAPHINITY graphite sheet has the suppression effect of temperature irregularity and heat spot on an electronic devices.

The temperature of LCD surface is displayed. These data are not guaranteed values but the typical measurement values at our company.

Technical data 2 : Flexibility and electromagnetic shielding effect

Flexibility test (MIT test)

GRAPHINITY graphite sheet has high flexibility and bend ability.

Materials Thickness Bending times
GRAPHINITY 25µm >10000
40µm >10000

Test condition R = 2mm, 270° Load: 100g
These data are not guaranteed values but the typical measurement values at our company.

Electromagnetic shielding effect (KEC method)

GRAPHINITY graphite sheet has high electromagnetic shielding effect.

Grade

Unit Typical values Method
10μm 18μm 25μm 32μm 40μm
Thinkness μm 10 18 25 32 40 Micrometer
Thermal conductivity In plane (XY axis) W/mK 1600 1600 1500 1500 1500 AC calorimeter method
Thru plane (Z axis) 5 5 5 5 5 Laser flash method
Thermal diffusivity cm²/s 9 9 9 9 9 AC calorimeter method
Specific gravity g/cm³ 2.1 2.1 2 2 2 Kaneka method
Tensile strength Mpa 40 40 40 40 40 ASTM-D-882
Bending Cycles >10000 >10000 >10000 >10000 >10000 JIS-C5016, R=2mm, 135°
Electrical Conductivity S/cm 14000 14000 13000 13000 13000 JIS K 7194
Heat resistance °C 500 500 500 500 500 TG-DTA
Water absorption % <0.1 <0.1 <0.1 <0.1 <0.1 JIS K 7209