Basalt Nonwoven Fabrics

1. Core Features of Basalt Nonwoven Fabrics: "Inorganic Protection Benchmark" in Extreme Environments

Based on the inherent advantages of natural basalt fibers and the spunlace process characteristics, basalt nonwoven fabrics have three core features, breaking through the performance limitations of organic fiber nonwoven fabrics in high-temperature, strong corrosion, and high-radiation scenarios:

1. Ultra-high Temperature Tolerance + Intrinsic Flame Retardancy: "Firewall" in Extreme Heat Environments

The thermal resistance performance exceeds that of organic fibers: Different from aramid (long-term operating temperature 200°C), polyester (long-term operating temperature 150°C), etc., basalt fibers can work stably at 600°C for a long time, with a short-term tolerance temperature of up to 800°C. After spunlace reinforcement, the original thermal resistance characteristics of the fibers are still maintained, and they can be used continuously for more than one year in ultra-high-temperature scenarios such as garbage incineration and volcano monitoring without aging or damage, being 2-3 times that of organic materials.

Inorganic Flame Retardancy without Safety Risks: No need to add any flame retardants, with an oxygen index ≥ 45% (far exceeding the 28% standard of organic flame retardant materials), when exposed to fire, it does not burn, does not melt, and does not release toxic gases, only maintaining the integrity of the inorganic fiber structure, effectively blocking high-temperature flames and heat radiation, solving the fatal problem of organic flame-retardant nonwoven fabrics "high-temperature release toxic gas, melting and dripping injury".

2. Full-Dimensional Corrosion Resistance + Anti-Aging: "Corrosion Resistance Armor" in Harsh Media

In acid and alkali corrosion： For strong acids and alkalis such as 98% sulfuric acid， 50% sodium hydroxide， and harsh media such as seawater， salt fog， industrial solvents， etc.， it has excellent tolerance. After 30 days of immersion， the strength loss rate is ≤ 5%， far better than aramid (loss rate 15%-20%)， polypropylene (completely damaged under strong corrosion)； in strong corrosive scenarios such as chemical， marine， and nuclear power， the service life can reach 5-8 years， 5-10 times that of organic fibers.

Dual advantages of anti-aging and anti-radiation： The natural inorganic components determine that it does not age or degrade， and its performance does not decline when exposed to sunlight， ultraviolet rays， γ-rays， etc. in the environment； especially in the nuclear field， it can withstand 10⁶ Gy dose of radiation， far exceeding organic fibers (tolerance dose ≤ 10⁴ Gy)， suitable for high-radiation high-risk scenarios.

3. High Modulus + Flexible Processing： "Multifunctional Base Material" for High-End Engineering

Balancing mechanical properties and flexibility： The density of basalt fibers is 2.6g/cm³， although higher than organic fibers， the longitudinal breaking strength reaches 3000MPa， twice that of steel； the modulus is as high as 90GPa， with a deformation rate of ≤ 1% after force application. After water-stitch processing for flexible entanglement， the fibers are undamaged， the product has both high-strength support and soft foldable characteristics， solving the problem of "hard and brittle， poor processing" of glass fiber needle-stitched felts.

Great potential for functional combination： Through coating and composite processes， it can be combined with functions such as coating titanium dioxide to have photocatalytic degradation functions， suitable for environmental purification scenarios； combined with carbon fibers， it has both high strength and conductive properties， suitable for high-end aerospace components， meeting multi-dimensional engineering needs.

2. Main Application Domains of Basalt Nonwoven Fabrics： Essential Solutions for High-End Engineering and Extreme Scenarios Based on these core characteristics, basalt non-woven fabric has become an "indispensable material" in industrial high-temperature, nuclear power protection, infrastructure construction, environmental purification and other fields, suitable for core scenarios with high risks, high requirements and long service life:

1. Industrial high-temperature field: The "guardian of production" in ultra-high temperature scenarios

High-temperature smoke gas filtration: Filter bags for waste incineration plants, high-temperature gas filtration fabric for steel mills —— In an ultra-high temperature environment of 600°C, it can efficiently capture dust and harmful particles, with a filtration accuracy of 0.1μm, and is resistant to acid and alkali corrosion, with a service life of over 2 years, which is 4 times longer than fiberglass filter bags (with a lifespan of 6 months), significantly reducing equipment maintenance costs.

High-temperature equipment protection: Insulation lining for asphalt mixing stations, kiln insulation layers —— It can directly adhere to the surface of high-temperature equipment, blocking the transfer of temperatures above 600°C to the outside, with a heat preservation effect 30% higher than traditional rock wool, and with a soft texture and easy to cut, suitable for irregular equipment shapes, solving the problem of "hard and brittle, difficult to adhere" of traditional insulation materials.

2. Nuclear power and special protection fields: "Safety defense line" in high-risk scenarios

Nuclear power protection consumables: Maintenance protection fabric for nuclear reactors, radioactive waste liquid filtration fabric —— Resistant to 10⁶ Gy high radiation dose, and resistant to strong acid and alkali corrosion, capable of blocking the leakage of radioactive substances, with a filtration accuracy of 0.01μm for radioactive particles, being the only inorganic filtering material that can be used for a long time in the nuclear power field.

Special emergency protection: Fireproof curtains for high-rise buildings, explosion-proof blankets for oil tank areas —— Does not burn when exposed to fire, does not release toxic gases, can maintain structural integrity at 800°C high temperature, effectively blocking flame spread and explosion impact, with a weight only 1/5 of traditional fireproof steel plates, having both portability and protection, suitable for emergency protection needs in high-risk areas.

3. Infrastructure and environmental protection fields: "Durable base material" for long-term projects

Infrastructure project enhancement: Highway pavement reinforcement layer, bridge waterproofing layer fabric —— High strength and high modulus characteristics can enhance the crack resistance of the pavement and bridges, with aging resistance and corrosion resistance ensuring a service life of over 20 years, which is 2-3 times longer than traditional polyester reinforced fabric (with a lifespan of 5-8 years), reducing the maintenance cost of infrastructure in the later stage.

Environmental purification application: Advanced filtration fabric for industrial wastewater, photocatalytic degradation net —— Resistant to acid and alkali corrosion, capable of filtering heavy metal ions and pollutants in high-concentration industrial wastewater, with a filtration accuracy of 0.1μm; after coating with titanium dioxide, it can catalytically degrade VOCs and formaldehyde in the air under sunlight, suitable for industrial environmental protection and indoor air purification scenarios.

4. Aerospace and military fields: "Performance core" for high-end equipment

Aerospace components: Thermal insulation layer for spacecraft, aircraft engine compartment fabric —— Stable and undiminished performance in extreme temperature differences ranging from -200°C to 800°C, capable of blocking high-temperature burns during spacecraft re-entry into the atmosphere and high-temperature radiation from aircraft engines, and with lightweight characteristics (40% lighter than metal insulation materials), reducing equipment weight.

Military protection equipment: Inner lining for single soldier's high-temperature combat clothing, fireproof layer for armored vehicles —— Flame retardant by nature and resistant to impact from bullet fragments, capable of protecting soldiers from flame burns and bullet injuries, while resistant to corrosion in harsh environments, with undiminished performance in desert and marine battlefields, suitable for the high reliability requirements of military equipment.

About Yongdeli: Professional manufacturer of basalt non-woven fabric

Jiangsu Yongdeli Staple Weaving Non-Woven Fabric Co., Ltd. has an automated production line for basalt non-woven fabric, capable of providing customized products with a weight of 80-500g/㎡ and a width of 0.2-3.2m, supporting coating, composite and other post-processing processes with quality benchmarking to international high-end standards.

If you need to know about product samples or customization plans, please feel free to contact us.