Basalt Fiber Products and Their Versatile Applications

1. Defense and Aerospace

Basalt fibers'excellent mechanical properties, high/low-temperature resistance, and Corrosion Resistance make them ideal for creating advanced composites. These materials can be used for internal structures of space stations, turbine blades in aircraft engines, launch pad interception nets, missile shells, tank armor, and drone components. Their use reduces weight while improving impact resistance. They are also utilized in thermal protection systems as thermal insulation layers for rocket engine nozzles and temperature-resistant shields for spacecraft.

2. Transportation

• Transportation: Basalt fiberscan be used for Lightweight automotive parts (body structural components, interior trims, friction materials, etc.) to reduce overall vehicle weight and improve range. They are also used as fireproof and thermal insulation materials (fireproof cloth, aerogels) for new energy vehicle battery modules. In railway transportation, they can be found in train body shells, interiors, and track support materials.

3. New Energy

• Wind Turbine Blades: Basalt fibers can supplement glass fibers to enhance the fatigue resistance of blade roots, extending their service life.

• Hydrogen Storage: Used as a reinforcement layer for the inner liner of hydrogen storage tanks, they offer high-pressure resistance (>70 MPa) and anti-hydrogen embrittlement properties.

• Photovoltaic Frames and Brackets: Photovoltaic brackets made from basalt fiber-reinforced composites offer superior mechanical properties, corrosion resistance, non-conductivity, low density, long service life, and low overall cost. They are particularly suitable for harsh environments like offshore and saline-alkali land solar applications.

4. Civil Engineering

• Roads, Bridges, and Construction: High-strength basalt fiber and vinyl ester (epoxy resin) composites, formed through pultrusion and winding, have high tensile strength, excellent corrosion resistance, insulation, and thermal insulation. They can partially replace steel rebar in roads, bridges, and marine engineering. Basalt fibers can also be used as a concrete additive to improve crack resistance, or in road asphalt to increase wear resistance and reduce road noise. They can also be made into geotextile grids for subgrade and pavement reinforcement.

• Building Insulation: Basalt fiber felts are used as a wall insulation layer (with a thermal conductivity as low as 0.035 W/(m·K)), providing both fire resistance (A-grade non-combustible) and sound insulation.

5. Petrochemical Industry

• Oil and Gas Pipelines: Basalt fiber-wound pipes have high strength, corrosion resistance, and high-temperature resistance. Their service life is 5 to 10 times that of traditional pipes. With excellent sealing performance, they are widely used for water diversion, oil field water injection, fluid transport, and oil/gas transmission.

6. Everyday Life

• Fire Safety: The excellent spinnability of basalt fibers allows them to be woven into fireproof cloth, blankets, firefighting suits, and thermal insulation cloth for fire protection and rescue.

• Municipal and Educational Furniture: Basalt fiber composites can be used for municipal items like flower boxes, manhole covers, and paving stones, as well as educational furniture like table tennis tables, basketball backboards, and desks. They are resistant to high temperatures, aging, impact, and wear, and are also fireproof and moisture-proof.