Core Heat and Environmental Resistance
- Stable High-Temperature Performance: Various types can be used long-term within the 150°C–300°C range; certain specialty materials (such as PI) can withstand decomposition temperatures up to 600°C and remain crack-free at cryogenic temperatures as low as -269°C.
- Thermal Insulation: Exemplified by rigid polyurethane foam, these materials feature a closed-cell rate exceeding 90% and thermal conductivity as low as 0.018–0.024 W/(m·K), achieving excellent insulation performance even with minimal thickness.
- Weather and Aging Resistance: Certain types can be used long-term between -190°C and 70°C (provided the surface remains intact), with a service life exceeding 30 years under normal operating conditions.
Mechanical and Structural Support
- High-Pressure Stress Resistance: Possesses excellent mechanical strength, capable of withstanding stress in high-pressure environments without easily deforming or rupturing; suitable for applications such as high-pressure fluid transport.
- Lightweight yet High-Strength: Lighter than traditional metals with a high strength-to-weight ratio; strength actually increases rather than decreases at low temperatures, and the volumetric change rate is less than 1% after 24 hours of storage at -20°C.
- Dimensional Stability and Deformation Resistance: Features a stable porous structure with excellent freeze-thaw and creep resistance, ensuring immunity to cracking or deformation during long-term high-temperature operation.