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I. Core Parameters
1. Structural Parameters
Model |
SC-AF1 |
SC-AF2 |
SC-AF3 |
Thickness/mm |
5 |
10 |
20 |
Thermal Conductivity at Room Temperature/W·m-1·K-1 |
0.022 |
0.025 |
0.030 |
Density /g·cm-3 |
0.025 |
0.032 |
0.040 |
Compressive Strength/kPa@ 10% |
100 |
150 |
250 |
Operating Temperature/°C |
>1000 |
>1000 |
>1000 |
Hydrophobicity Rate |
>99.0% |
>99.0% |
>99.0% |
2. Thermal Properties
●Thermal conductivity: ≤ 0.0221 W/(m·K) at room temperature, ≤ 0.030 W/(m·K) at high temperature (400℃);
●Temperature resistance limit:
●Inert atmosphere: 1300℃ (withstand for 2 hours);
●Oxidizing atmosphere: 1600℃ (instantaneous);
●Coefficient of thermal expansion: 2.77×10-6K-1 (well matched with metal matrix).
3. Mechanical and Physical Properties
●Density: 0.025 g/cm³, adjustable according to compression ratio;
●Compressive strength: 1.365 MPa (3D printed enhanced type), Young's modulus 21.8 MPa;
●Flexibility: Bendable and foldable, tensile strength ≥ 100 kPa;
●Porosity: 90% - 99.8%, specific surface area 15 - 40 m²/g.
II. Core Features
●Lightweight and High Strength: The interpenetrating network of nanofibers endows the material with high porosity (>98%) and mechanical stability, combining low density with compressive resistance.
●Integrated Functionality: Combining the typical characteristics of aerogels (such as sound insulation and corrosion resistance) with the inherent advantages of SiC ceramics (such as oxidation resistance and thermal shock resistance).
●Processability: The bulk form supports post-treatment such as cutting and coating, suitable for complex engineering scenarios.
●Multi-functionality
- Electromagnetic Wave Absorption: The one-dimensional nanowire structure optimizes radar wave absorption, suitable for military stealth coatings.
- Hydrophobic and Flame Retardant: Overall hydrophobic, with a flame retardancy rating of UL94-V0.
III. Application Fields
1. Aerospace and High-Temperature Equipment
●Spacecraft Thermal Protection: Used in the insulation layer of high-speed aircraft, it can withstand aerodynamic heating up to 1600℃.
●Aviation Engine: Turbine blade ablation-resistant coating, reducing weight by 30% and extending service life by three times.
2. New Energy and Electric Vehicles
●Battery Thermal Insulation: Insert 1-3mm aerogel felt between battery cells to prevent thermal runaway spread (withstand 400℃);
●Fuel Cell Thermal Management: Insulation layer for hydrogen fuel cell stacks to reduce cold start energy consumption.
3. Industrial Energy Conservation and Protection
●High-temperature pipelines/tanks: Replace traditional glass wool, reducing thickness by 60% (6mm aerogel blanket is equivalent to 30mm rock wool);
●Chemical reactors: Corrosion-resistant inner lining, resistant to strong acid environments.
4. Emerging Fields
●Electronic Device Heat Dissipation: 5G base station power semiconductor packaging, thermal conductive fillers enhance heat dissipation efficiency;
●Special Clothing: Firefighter suit interlayer (≤ 450℃), delays heat transfer;
●Building Energy Conservation: Ultra-thin thermal insulation curtains (2mm thick, sound insulation 12dB).
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