1.5D×51MM Pre-Oxidized Staple Fiber, Inherent FR No Melt Drip High Temp Resistant Thermal Insulation Resistant Electrical Insulation Fiber
Our 1.5D×51mm pre-oxidized PAN staple fiber is a high-performance industrial special fiber produced through controlled thermal oxidation of high-quality polyacrylonitrile precursor. It integrates inherent flame retardancy, high temperature resistance, thermal insulation, electrical insulation and chemical resistance, making it ideal for fire protection, environmental protection, energy, automotive, electrical and other industrial applications.
Customization: Specifications can be customized to meet specific requirements
- Inherent Flame Retardancy: Permanent molecular structure with LOI ≥45%, no surface coatings
- No Melt Drip: Carbonizes without melting, shrinking, or dripping when exposed to flame
- High Temperature Resistance: Stable performance at 200-300°C continuous use, withstands 400°C+ short-term exposure
- Ultra-Low Smoke & Toxicity: Minimal smoke and virtually no toxic gas release during combustion
- Chemical Resistance: Excellent resistance to acids, alkalis, and most chemical solvents
- Electrical Insulation: Outstanding electrical insulation properties for high-voltage applications
| Parameter | Details |
|---|---|
| Product Name | 1.5D×51mm Polyacrylonitrile Pre-Oxidized Staple Fiber (PANOF) |
| Standard Specification | 1.5D Fine Denier, 51mm Standard Fixed Cut Length |
| Base Material | 100% High Quality PAN Precursor, Thermally Oxidized Stabilized |
| Appearance | Uniform Jet Black, No Heterochromatic Filament, No Oil Stain |
| Limiting Oxygen Index (LOI) | ≥45%, Grade S-A flame retardant level |
| Combustion Behavior | No melting, no dripping, no shrinkage, self-extinguishing away from flame |
| Long-Term Service Temperature | 200-300°C continuous use, short-term withstand over 400°C |
| Breaking Tenacity | ≥2.0 cN/dtex |
| Package | 25kg Moisture-Proof Woven Bag, Pallet Packed for Global Bulk Export |
- Personal Fire Protective Apparel: Firefighter combat uniforms, high-temperature workshop workwear, welding protective clothing
- High-Temperature Industrial Filtration: Flue gas filter bags for steel, cement and chemical industries, waste incineration filter felts
- Thermal Insulation Materials: Industrial pipeline insulation, high-temperature furnace insulation, building fireproof insulation
- Automotive & Transportation: Engine compartment fireproof materials, vehicle interior flame retardant textiles
- Electrical & Insulation Industry: H-class electrical insulating paper, transformer insulation, motor slot insulation
- Industrial Special Materials: Friction materials, sealing packing, carbon fiber precursor, fireproof building materials
Achieved through molecular thermal stabilization during production, not surface coating. LOI reaches above 45% with permanent performance that never decays after washing, baking, or long-term use.
Eliminates secondary scald risk and protects personal safety with minimal smoke density and virtually no toxic gas release during combustion.
Stable performance at 200-300°C continuous use, withstands 400°C+ short-term exposure while maintaining fiber flexibility and structural strength.
1.5D fine denier with 51mm standard length ensures compatibility with ring spinning, needle-punched nonwoven, and felt production lines worldwide.
Excellent resistance to acids, alkalis, chemical solvents, and radiation with outstanding electrical insulation properties for demanding applications.
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