1. Composition & Environmental Impact
Soluble Fiber Blankets: Primarily composed of SiO₂, CaO, and MgO. They are biodegradable, comply with environmental regulations, and reduce long-term pollution risks.
Traditional Fiber Blankets: Mainly made of aluminum silicate (Al₂O₃-SiO₂). They are non-biodegradable, difficult to dispose of, and exhibit higher biopersistence.
2. High-Temperature Resistance
Soluble Fiber Blankets: Withstand temperatures of 1200°C–1300°C, show no shrinkage after 2 hours at 1000°C, and have low thermal conductivity (0.08 W/(m·K)).
Traditional Fiber Blankets: Offer similar high-temperature resistance, with some products providing better stability under extreme heat due to higher Al₂O₃ content (though environmental concerns remain).
3. Mechanical Properties & Processability
Soluble Fiber Blankets: Tensile strength ≥150 kPa, shot content ＜10%. Soft texture allows easy cutting and shaping.
Traditional Fiber Blankets: Mechanical properties vary by product. Some have coarser fibers, a stiffer feel, and may cause more skin irritation.
4. Chemical Stability
Soluble Fiber Blankets: Resistant to acid and alkali corrosion (mass loss ＜5% after 72 hours in pH=2–12 solutions), making them suitable for chemical and metallurgical applications.
Traditional Fiber Blankets: Chemical stability depends on composition; performance may degrade in strong acid/alkali environments.
5. Application Scenarios
Soluble Fiber Blankets:
Industrial kilns (easy removal reduces costs)
Building fire protection (eco-friendly, no waste concerns)
Aerospace (fire-resistant and biodegradable)
Traditional Fiber Blankets:
Conventional high-temperature industries (facing growing environmental restrictions)
Building insulation (limited by non-biodegradability)
