Ceramic fiber paper is a paper refractory product made of ceramic fibers, also called aluminum silicate fiber paper. Ceramic fiber paper is a high-temperature refractory material, usually made of inorganic oxide fibers, mainly including Al2O3, SiO2, and ZrO2, and certain additives are added to make it compact. Ceramic fiber paper can not only be used as thermal insulation material for the inner wall of furnace lining and sealing material for high-temperature appliances, but also can be used as thermal insulation material for aviation and aerospace, and has a wide application prospect.
| Item/Grade | STD Paper | HD Paper | |
|---|---|---|---|
| Classification Temperature ≥/℃ | 1260 | 1350 | |
| Chemical Composition | ω (Al2O3)/% | 42-47 | 44-50 |
| ω (SiO2)/% | 52-57 | 49-55 | |
| Color | White | White | |
| Bulk Density (kg/m³) | 200 | 240 | |
| Tensile Strength/MPa | 0.4 | 0.7 | |
| Loss of Ignition ≤/% | 10 | 6 | |
| Thermal Conductivity Coefficient /[W/(m·K)] | 200℃ | 0.06 | 0.06 |
| 400℃ | 0.09 | 0.08 | |
| 600℃ | 0.13 | 0.13 | |
| 800℃ | 0.2 | 0.19 | |
| 1000℃ | / | 0.29 | |
| 1200℃ | / | 0.43 | |
It can withstand rapid changes in temperature without cracking or peeling and remains stable. This feature is especially valuable in applications where temperature fluctuations or thermal cycling are frequent.
Ceramic fiber paper is composed of Inorganic material, does not contain harmful substances, does not release toxic substances at high temperatures, and contributes to a safer and healthier working environment.
The highest heat-resistant temperature can withstand up to 1260°C or even higher, depending on the specific type of fiber. This property allows the ceramic fiber paper to maintain its integrity even at an extreme heat.
Ceramic fiber paper has electrical insulating properties and protects electrical components from thermal effects. Making it a reliable choice for applications that require insulation at high temperatures to prevent conduction.
Ceramic fiber paper is used as lining material for high-temperature kilns in industries such as steel, glass, cement, and nonferrous metals. It helps reduce heat loss, increases thermal efficiency, and protects furnace walls from harsh operating conditions.
Ceramic fiber paper plays an insulating role in refractory structures such as kilns and ladle covers. It helps maintain the desired operating temperature, reduces heat transfer, and increases energy efficiency.
Ceramic fiber paper is used as backing lining behind refractory bricks or castables. It enhances the insulating properties of the refractory lining, reduces heat loss, and improves overall thermal performance.
Ceramic fiber paper is used for heat insulation and sound insulation in the automobile industry. It is commonly used in engine compartments, exhaust systems, and interior cabin spaces to reduce heat transfer, suppress noise and vibration, and improve overall comfort and safety.