SUNTHERM High-Alumina Bio-Soluble Ceramic Fiber Textiles

High-alumina bio-soluble ceramic fiber textiles are refractory and thermal insulation materials produced by melt-spinning or blowing high-purity alumina into soluble ceramic fibers, followed by textile processing. These products combine lightweight, flexibility, high-temperature resistance, thermal shock resistance, and low thermal conductivity, making them widely applicable for insulation, heat protection, and composite material preparation in high-temperature industrial equipment.

Their unique chemical structure allows gradual dissolution in high-temperature environments, offering both environmental friendliness and safety, aligning with modern industry's demand for green materials.

Raw Materials and Production Process

Raw Materials: High-purity alumina (Al₂O₃) and a controlled amount of silica (SiO₂) are used to ensure high-temperature stability and chemical inertness.

Production Process

Raw Material Melting: Raw materials are melted into a homogeneous melt in high-temperature electric or gas furnaces.

Fiber Formation: The melt is fiberized through spinning or blowing processes to form continuous inorganic fibers.

Textile Processing: Fibers are processed into various textile forms, such as needle-punched felts or woven fabrics, using textile equipment.

Post-Processing: Heat treatment, surface finishing, and impregnation enhance mechanical strength and performance.

Quality Control: Ensured through XRF composition analysis, SEM microscopy, mechanical strength testing, and high-temperature performance evaluation.

Product Features

Exceptional High-Temperature Resistance: Long-term use up to 1260°C, short-term resistance up to 1350°C.

Excellent Thermal Shock Stability: Maintains structural integrity under repeated thermal cycling, resisting cracking or delamination.

Flexibility and Ease of Processing: Combines flexibility with mechanical strength, easy to cut and install, with outstanding tensile and tear resistance.

Efficient Thermal Insulation and Energy Saving: Low thermal conductivity and heat capacity effectively block heat transfer, enabling rapid heating and significant energy savings.

Safety and Environmental Friendliness: Free from asbestos and other harmful substances, compliant with international standards such as RoHS and REACH.

Strong Chemical Stability: Resistant to most acids and alkalis, suitable for harsh chemical environments.

Product Applications

I. Core Application Fields

Steel and Metallurgy Industry

Applications: Linings for blast furnaces, hot blast stoves, ladles, tundishes, heating furnaces, and annealing furnaces; sealing for furnace doors; filling expansion joints.

Functions: Reduces heat loss, improves thermal efficiency, protects furnace structures, and extends equipment lifespan.

Petrochemical and Power Industries

Applications: Insulation for cracking furnaces, reforming furnaces, boilers, steam pipelines, flues, and reactors.

Functions: Controls process temperatures, prevents energy loss, ensures personnel safety, and reduces operational costs.

Aerospace and Defense Industries

Applications: Thermal protection layers for spacecraft, engine heat shields, missile nose cones, and fire barriers.

Functions: Withstands extreme temperatures and thermal shocks, protecting critical equipment and components.

Automotive and Transportation

Applications: Heat shields for exhaust pipes, turbocharger wraps, engine compartment fire and noise insulation, and thermal barriers for new energy vehicle battery packs.

Functions: Isolates heat sources, prevents component overheating, enhances safety, and optimizes cabin thermal environments.

Construction and Fire Safety

Applications: Fire door/curtain fillings, structural fire protection for high-rise buildings, fire sealing for cable tunnels, and fireproofing for industrial pipe penetrations.

Functions: Provides high fire ratings, delays flame spread, and buys time for evacuation and firefighting.

Household Appliances and Equipment

Applications: Internal insulation for industrial/residential fireplaces, barbecue grills, ovens, dryers, and electric heaters.

Functions: Improves energy efficiency, prevents casing overheating, and ensures safe use.

II. Applications by Product Form

Ceramic Fiber Cloth/Tape: Mainly used for removable insulation jackets, flexible expansion joints, high-temperature pipe wrapping, high-temperature valve gaskets, and welding/cutting protective curtains. Features flexibility, sewability, and easy installation/removal.

Ceramic Fiber Blanket/Felt: Primarily used for industrial furnace linings (layered or modular) and insulation filling for large-area high-temperature equipment on flat or curved surfaces. Offers excellent filling properties, quick installation, and high thermal insulation efficiency.

Ceramic Fiber Rope/Yarn: Used for high-temperature sealing (e.g., furnace doors, inspection ports), weaving high-temperature mesh belts, and sealing packing.

Ceramic Fiber Paper/Board: Applied as high-temperature insulation gaskets, thermal barriers for precision instruments, and thin-layer insulation linings. Features uniform thickness, smooth surfaces, and strong processability.

III. Special Advantages of Bio-Soluble Ceramic Fiber Textiles

Compared to traditional ceramic fibers, bio-soluble ceramic fiber textiles offer irreplaceable safety and environmental advantages in the following scenarios:

Workplaces with High Occupational Health Requirements: Such as insulation for drying equipment in the food and pharmaceutical industries, reducing potential risks from long-term fiber dust exposure for workers.

Environments Involving Body Fluids or Humidity: Such as biomass energy or specific chemical processes, where solubility prevents persistent fiber accumulation.

Fields Emphasizing Full-Life-Cycle Environmental Friendliness: Such as green buildings and environmentally friendly factories, where end-of-life disposal has minimal environmental impact.

Areas with Strict Cleanliness Requirements: Such as high-temperature equipment insulation in semiconductor or lithium battery production workshops, reducing contamination risks from fiber dust.

Product Certifications
SUNTHERM has obtained multiple industry certifications and passed rigorous testing, including CE, SGS, ASTM, ISO 9001:2000, SASO, RoHS, BV, and MSDS, ensuring compliance with international quality and safety standards.

Customer Visits

Product Packaging
SUNTHERM has a dedicated professional team with extensive experience in providing customized packaging solutions tailored to different industries and a wide range of products.

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FAQ

Q1: What are bio-soluble ceramic fiber textiles?

A1: Bio-soluble ceramic fiber textiles are high-temperature-resistant fiber fabrics primarily made from alumina, silica, and other components, manufactured through advanced processes. Their key feature is that they not only possess the excellent high-temperature resistance of traditional ceramic fibers but also naturally dissolve under specific conditions, making them environmentally friendly. They are widely used for high-temperature insulation and protection in industries such as metallurgy, chemicals, and power generation.

Q2: What is the maximum operating temperature of this product?

A2: This product can operate stably at temperatures up to 1260°C for extended periods and withstand short-term exposure to 1350°C. It maintains excellent structural stability and thermal insulation performance even under high-temperature conditions.

Q3: What advantages do bio-soluble ceramic fibers have over traditional ceramic fibers?

A3: Compared to traditional ceramic fibers, bio-soluble fibers retain outstanding high-temperature resistance, low thermal conductivity, and good flexibility. Additionally, they feature bio-soluble properties. At the end of their service life or when fibers detach, they gradually dissolve in bodily fluids or natural environments, significantly reducing long-term dust hazards and environmental pollution. This better aligns with modern industrial requirements for environmental protection and occupational health.

Q4: What are the dissolution conditions and timeline for this product?

A4: The product gradually undergoes hydration when exposed to bodily fluids or natural moisture. The dissolution rate depends on specific environmental factors such as humidity, temperature, and fluid contact. Typically, it degrades within weeks to months, preventing long-term accumulation in the human body or the environment.

Q5: How should bio-soluble ceramic fiber textiles be stored and maintained?

A5: The product should be stored in a dry, well-ventilated, and light-protected indoor environment, avoiding prolonged exposure to high-humidity conditions. If surface dusting occurs during use, gently clean it with a vacuum cleaner. Avoid vigorous shaking or beating to extend its service life and minimize dust generation.

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