China Pre-Oxygenated Filament Spunlace Nonwoven Fabrics Manufacturer, Suppliers
Product Description
1. Core Advantages of Pre-oxidized Filament Nonwoven Fabric: Breakthrough in Special Fiber Performance
Pre-oxidized nonwoven fabric is based on "carbon fiber precursor pre-oxidized fibres", combining the characteristics of spunlace without adhesive reinforcement. It achieves cross-dimensional superiority over conventional nonwoven fabrics in extreme environmental adaptability, chemical stability, and structural functionality. The core advantages are reflected in five dimensions:
1. Ultra-high Heat Resistance & Flame Retardancy
2. Full-dimensional Chemical Corrosion Resistance
3. Balanced Structural Mechanics
4. Strong Functional Compatibility
5. Environmental Protection and Lifecycle Safety
II. Core Features of Pre-oxidized Spunlace Non-woven Fabric: Differentiated Advantages Directly Addressing Scenario Pain Points
Pre-oxidized spunlace non-woven fabric focuses on "extreme environment adaptability" as its core, combined with the structural advantages of the spunlace process, forming three differentiated features that precisely solve the core pain points of special fields:
III. Main Application Fields of Pre-oxidized Spunlace Non-woven Fabric: Essential Materials for Special Scenarios
Relying on the above advantages and characteristics, pre-oxidized spunlace non-woven fabric has become an "indispensable material" in four core fields of fire protection, industrial manufacturing, environmental purification, and aerospace, promoting the safety upgrade and performance breakthrough of related industries:
1. Fire Protection Field
Personal protective equipment: Outer layer protective fabric for fire protection suits, inner lining of heat-resistant gloves —— 220°C long-term temperature resistance, 1000°C short-term heat insulation, no risk of dripping and scalding, while having certain breathability (trans permeability≥800g/(m²・24h)), reducing the heat sensation of firefighters during high-temperature operations.
Emergency protective supplies: Fireproof escape blankets, emergency flame-retardant tents —— Expand quickly, flame-blocking time ≥ 10 minutes, can cover the human body or wrap valuable equipment, weight only 60% of traditional fireproof blankets, combining portability and protection.
Building fireproof materials: Steel structure fireproof coating fabric, cable fireproof sealing layer —— Good wrapping performance, can closely adhere to irregular structures, when exposed to fire, it forms a carbonized heat-insulating layer, delaying the softening time of the steel structure to over 120 minutes, far exceeding the national standard of 60 minutes.
2. Industrial Manufacturing Field
Chemical Corrosion Prevention Application: Acid and Alkali Liquid Filter Cloth, Storage Tank Anti-corrosion Inner Liner - Resistant to strong acid and alkali corrosion, with a filtration accuracy of 5μm, capable of retaining solid particles in chemical waste liquids, the inner liner has a service life of over 18 months, reducing the risk of equipment corrosion and leakage.
Metallurgical High-Temperature Resistance Application: Steel Water Casting Protection Cloth, Blast Furnace Temperature Monitoring Port Sealing Gasket - Resistant to temperatures above 1500℃, blocking the splashing of molten steel and causing burns, the sealing gasket maintains a sealing performance of 98% at 200℃, avoiding the leakage of high-temperature gases.
Mechanical Sealing Application: Engine High-Temperature Sealing Gasket, Precision Instrument Dustproof Cover - Dimensionally stable within -30℃ to 180℃ range, resistant to corrosion by engine oil and hydraulic oil, with superior sealing performance compared to traditional rubber gaskets, and lighter weight, without aging or cracking issues.
3. Environmental Purification Field
Industrial Waste Gas Treatment: High-Temperature Filter Cotton, Harmful Gas Adsorption Cloth - Capable of filtering smoke particles at 200℃, with a filtration efficiency of ≥95%, after being combined with activated carbon, it can adsorb up to 85% of formaldehyde and VOCs, suitable for high-temperature waste gas scenarios in metallurgy and painting.
Solid Waste Treatment Protection: Hazardous Waste Packaging Cloth, Incinerator Filter Bag - Strong corrosion resistance, capable of bearing strong acid and alkali hazardous waste, the incinerator filter bag can retain incineration dust at 220℃, reducing harmful gas emissions.
4. Aerospace and Special Fields
Aerospace Companionship: Satellite Equipment Heat Insulation Layer, Rocket Engine Sealing Gasket - Dimensionally stable in a wide temperature range, without contraction from -40℃ to 200℃, capable of blocking the impact of extreme temperature differences in space on equipment, the sealing gasket is resistant to high pressure and lightweight, meeting the lightweight requirements of spacecraft.
Military Defense Application: Military Flame Retardant Tent Cloth, Anti-Chemical Suit Outer Layer Material - Equipped with multiple performance features such as flame retardancy, acid and alkali resistance, and radiation resistance, the tent cloth does not spread when exposed to fire, the anti-chemical suit can resist the penetration of chemical warfare agents such as mustard gas, ensuring the safety of combat personnel.
Electronic Industry Application: High-Temperature Welding Protection Cloth, Electronic Component Anti-static Packaging - Capable of withstanding 300℃ welding temperatures, avoiding the scorching of electronic components by welding slag, after being combined with conductive fibers, the surface resistance is ≤10⁶Ω, effectively releasing static electricity, preventing component breakdown and damage.
About Yongdeli: A Professional Manufacturer of Pre-oxygenated Spunlace Non-woven Fabric
Changshu Yongdeli Spunlace Non-Woven Fabric Co., Ltd. has been dedicated to the production of pre-oxygenated staple spunlace non-woven fabric for over 20 years. The company's annual production capacity reaches 5,000 tons and it can provide customized services. If you need samples or customized solutions, please feel free to contact us.
Changshu Yongdeli Spunlaced Nonwoven Fabric Co., Ltd. has been deeply engaged in the specialized research and large-scale production of pre-oxidized nonwoven fabric. Using polyacrylonitrile pre-oxidized fibers (PANOF, or pre-oxidized filaments) as the core raw material, it integrates multiple precise spunlace entanglement processes and high-temperature setting technology to create "high-performance pre-oxidized filament nonwoven fabric products with excellent heat resistance, chemical resistance, and structural stability". Relying on an 8,000-ton annual production capacity clean production line and a refined management system, the products have passed the GB/T 38462-2020 protective material standard and flame retardancy A-level certification, providing special material solutions for high-end fields such as fire protection, industrial sealing, and environmental purification.
Frequently Asked Questions (FAQ)
It is produced from carbon fiber precursor pre-oxidized fibers (polyacrylonitrile pre-oxidized fibers, or PANOF) combined through non-adhesive, high-pressure spunlace entanglement methods.
The fabric has natural self-extinguishing properties reaching the GB 8624-2012 A-level standard. It does not melt, shrink, or drip; instead, it carbonizes immediately to form an effective heat-insulating barrier.
It works stably up to 220°C for extended periods with 100% strength retention at 240°C. It begins to slowly decompose at 370°C and carbonizes without melting at 400°C.
It tolerates strong acids like 98% sulfuric acid, strong alkalis up to 40% sodium hydroxide, and various organic solvents. It exhibits a fracture strength loss rate of ≤5% even after a 72-hour soak.
Yes. It supports customizable weights from 50 to 300 g/m² and can be combined with functional additives such as conductive layers for static dissipation, activated carbon for air filtration, or specialized flame-retardant coatings without loss of core performance.
