GrafTech Case Studies:
• PDP Displays
• SONY VAIO™ X505
• General Wireless Handsets |
 Made from natural graphite, eGRAF® SPREADERSHIELD™ products function as both a passive heat spreader and heat shield. SPREADERSHIELD material is offered in a variety of in-plane thermal conductivities, from 300 to 500 W/m-K, and can be die-cut, press formed, or laminated with plastics, metals, adhesives, and other materials. Every SPREADERSHIELD part can be customized to meet specific applicator needs and improve thermal performance within a limited space and weight.
- Consistent, reliable performance from
-40°C to +400°C
- Flexible and compressible enough to conform to product contours
- Can be laminated with plastics, metals or adhesives to improve performance
- Offered in thicknesses from 0.05mm (0.002")
- Contains no moving parts, with no risk of mechanical failure
- Contains no hazardous materials, is non-toxic, RoHS compliant and UL 94 V-O flammability rated
- Inert to most chemicals and gases, with a high degree of chemical compatibility.
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Applications
- Displays, Lighting, and Projection
- Consumer and Industrial Electronics
- Automotive Electronics
Typical Properties of eGRAF SPREADERSHIELD Natural Graphite
- Thickness tolerance: ± 5%
- Flammability Rating: UL 94 V-O
- Operating Temperature: -40°C to +400°C
- Coefficient of thermal Expansion (In-Plane): -0.4 x 10-6 m/m °C
- Coefficient of thermal Expansion (Through Thickness): 27.0 x 10-6 m/m °C
- Specific Heat: 711 J/kg °C
- Electrical Resistivity (In-Plane): 7μΩm - (4 point resistivity test)
- Electrical Resistivity (Through Thickness): 15000 μΩm
eGRAF and SPREADERSHIELD are trademarks of GrafTech International Holdings, Inc. For patent information visit www.egraf.com/patents |