Carbon Fiber Insulation Materials
• Low thermal conductivity
• Has good stability at high temperatures
• Lightweight and easy to handle (easy to construct)
• Low dust generation
• High purity
0• Low thermal conductivity
• Has good stability at high temperatures
• Lightweight and easy to handle (easy to construct)
• Low dust generation
• High purity
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| Graphite Soft Felt | Graphite Soft Felt |
| Highly graphitized soft felt has the characteristics of light weight, good disturbance, high carbon content, high temperature resistance, high temperature non volatility, corrosion resistance, and low thermal conductivity. | Highly graphitized soft felt has the characteristics of light weight, good disturbance, high carbon content, high temperature resistance, high temperature non volatility, corrosion resistance, and low thermal conductivity. |
Category | Polyacrylonitrile (PAN) | Asphalt-based (PITCH) | Adhesive Base (RAYON) |
Sources | Propylene nitrile is derived from petrochemical raw materials. After polymerization, polyacrylonitrile is obtained and made into a solution for spinning. | From petroleum asphalt or coal asphalt, melted, spun | It is derived from the solution formed by dissolving wood and cotton fiber bundles in concentrated sulfuric acid and nitric acid, and spinning |
Advantage | The process is simple and mature, the bonding performance is good, and the production cost is low | Rich raw materials, high purity, low dust generation, high elastic modulus, high thermal conductivity, and relatively hard | Good high temperature resistance, good heat insulation performance, softer after heat treatment, not easy to generate dust |
Shortcoming | The ash content is high, and the monofilament becomes brittle after high-temperature treatment, which easily produces dust to pollute the furnace environment. At the same time, the fiber can easily enter the pores and respiratory tract of the human body, causing harm to human health. | The raw material preparation is complex and the tensile strength is low | The degree of graphitization after high temperature treatment is not high, the technology is difficult, the equipment is complex, the cost is high, and it is easy to oxidize |
Market share | About 90% | About 5-10% | About 1-5% |
Applications | Thermal insulation materials, sealing materials, friction materials, functional materials, structural materials | Insulation materials, sealing materials, friction materials, brake materials | Heat insulation materials, candle burning resistant materials |
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