GBT-ViaTHERM GRF SERIES THERMALLY CONDUCTIVE GRAPHITE FILM
Product Features
- High thermal conductivity, better than natural graphite
- Excellent temperature resistance, no volatile matter, no pollution to products
- Product shape can be customized according to customer drawings
Application
- Smartphone
- Tablet PC
- Vapors, radiators
- Electromagnetic shielding
Product Storage
- Sealed storage
- Storage temperature is 20~35°C, moisture-proof, avoid direct sunlight
- (After adhesive layer applied) the shelf life is 6 months
GBT-ViaTHERM GRF is a synthetic graphite material with ultra-high thermal conductivity in planer direction. This material has a regular carbon hexagonal layered arrangement in the horizontal direction and thermal conductivity up to 1,500W/m-K. It can be one side adhesive for easy operation.
| Item | GRF150S | GRF100S | Test Method | ||||||||
| Physical Property | |||||||||||
| Colour | Charcoal | Charcoal | Visual | ||||||||
| Material | Synthetic Graphite | Synthetic Graphite | - | ||||||||
| Working Temperature (°C) | -55~+400 | -55~+400 | - | ||||||||
| Hardness | 90 Shore A | 90 ShoreA | ASTM D2240 | ||||||||
| Thickness (mm) | 0.012 | 0.017 | 0.025 | 0.04 | 0.05 | 0.085 | 0.09 | 0.1 | 0.11 | 0.12 | ASTM D374 |
| Raw Material Width (mm) | 100 | 130 | 140 | 140 | 140 | 100 | 130 | 140 | 140 | 140 | - |
| Density (g/cm³) | 2.17 | 2.13 | 2.1 | 1.8 | 1.7 | 2.17 | 2.13 | 2.1 | 1.8 | 1.7 | ASTM D792 |
| Tensile Strength (PSI) | 900 | 900 | 900 | 900 | 900 | 900 | 900 | 900 | 900 | 900 | ASTM D412 |
| Fold Durability (R5/180°) | 2000 | 2000 | 2000 | 2000 | 2000 | 2000 | 2000 | 2000 | 2000 | 2000 | - |
| Electrical Performance | |||||||||||
| Volume Resistivity (ohm-cm) | 11x10-3 | - | ASTM D257 | ||||||||
| Conductivity (S/cm) | 19000 | - | - | ||||||||
| Breakdown Voltage | - | >4000AC | ASTM D149 | ||||||||
| Thermal Performance | |||||||||||
| X-Y Axis Thermal Conductivity (W/m·K) | 1800 | 1700 | 1500 | 1300 | 1100 | 1800 | 1700 | 1500 | 1300 | 1100 | Hot Disk |
| Z Axis Thermal Conductivity (W/m·K) | 15 | 10 | ASTM D5470 | ||||||||
| Specific Heat Capacity (J/(Kg·K)) | 710 | 710 | ASTM D2766 | ||||||||
| RoHS | Yes | Yes | - | ||||||||
