Carbon fiber needle-punched felt is a high-performance nonwoven fabric designed for applications requiring optimized thermal insulation, superior mechanical stability, and enhanced durability. Manufactured through needle-punching and controlled carbonization processes, this felt delivers excellent heat resistance, lightweight properties, and reliable structural integrity. It is widely used in aerospace thermal protection, industrial high-temperature insulation, energy storage systems, filtration applications, and advanced composite reinforcement, ensuring long-term efficiency in demanding environments.
Product Overview
Carbon fiber needle-punched felt is a high-performance material processed through a needle-punching technique, turning carbon fiber into a soft felt structure, followed by graphitization treatment. It features a smooth surface, does not shed fibers, and offers outstanding high-temperature resistance, low density, low thermal conductivity, and excellent corrosion resistance. This material is widely used in high-temperature applications, especially in the photovoltaic and semiconductor industries for single-crystal silicon, silicon carbide furnaces, and high-temperature vacuum sintering furnaces.
Key Features
- High-Temperature Resistance: Can operate stably in high-temperature environments, ensuring a long service life.
- Low Density: Lightweight yet high-strength, suitable for various high-temperature applications.
- High Purity: Ensures efficient performance and adapts to demanding working environments.
- Low Thermal Conductivity: Effectively controls heat loss, improving insulation performance.
- Excellent Corrosion Resistance: Demonstrates high chemical stability in harsh environments.
Applications
- Photovoltaic Industry: Used as insulation material for single-crystal silicon and silicon carbide furnaces, ensuring stability and efficiency in high-temperature environments.
- Semiconductor Industry: Acts as insulation in high-temperature vacuum sintering furnaces, ensuring precise temperature control and efficient production processes.
- High-Temperature Vacuum Sintering Furnaces: Provides necessary insulation and thermal protection for various high-temperature equipment.
- Customized Thermal Field Management Solutions: Offers tailored thermal field management solutions to optimize high-temperature operational efficiency.
Technical Indicators and Parameters | |||||
Indicator Name | Index parameter | Note | |||
PAN-based | Viscose-based | Asphalt-based | |||
Carbon Content (wt%) | ≥99.8 | ≥99.8 | ≥99.9 | ||
Ash Content | ≤300 | ≤300 | ≤200 | ||
Thermal Conductivity | 1000℃ | <0.15 | <0.08 | <0.08 | Vacuum Environment |
W/(m·K) | 1500℃ | <0.3 | <0.25 | <0.25 | |
Bulk Density (g/cm³) | 0.10~0.13 | 0.085~0.11 | 0.06~0.1 | Customized | |
Treatment Temperature (℃) | 2000 | 2000 | 2200 |