Pan Carbon Fiber | Polyacrylonitrile Fiber
Pre-oxidized pan fiber is a high-performance fiber material, which is obtained by high-temperature heat stabilization treatment with polypropylenenitrile (a type of polyacrylonitrile fiber) as raw material. Pre-oxidation is a heat treatment process that oxidizes pan fiber at high temperatures to give them higher thermal stability and strength. Pan carbon fiber production begins with this oxidation step, which is why the process is critical in carbon fiber manufacturing.
Pre-oxidized Pan fibers have excellent high temperature resistance and can withstand high temperature environments up to 350°C, so they are widely used in materials that require high temperature resistance in aerospace, automobiles, ships and other fields. In addition, oxidized fiber also has the advantages of low specific gravity, low thermal expansion coefficient, and good chemical stability.
The performance features of panox fiber include: Limiting Oxygen Index (LOI) values between 45% – 55%. Unsurpassed flame and heat dimensional stability. Easy processability into yarns, wovens, knits & nonwovens. Soft, comfortable felts and fabrics. Electrically nonconductive and excellent chemical resistance. No halogens and very low toxic gas emissions, upon flame exposure. Oxidized polyacrylonitrile fiber is produced as a 300,000 filament tow and can be crimped and cut into various staple lengths. Three denier sizes (1.7dtex, 2.2dtex and 5.0dtex) and two different fiber densities (1.37 g/cc and 1.40 g/cc) are available. The Limiting Oxygen Index (LOI) value is dependent upon fiber density. Besides providing outstanding protection against direct flame, oxidized pan fiber products exhibit low thermal conductivity and make excellent thermal insulators.
Pre-oxidized pan fiber, sometimes confused with polyethylene terephthalate, is actually derived from pan polyacrylonitrile. Pre-oxidized Pan has high flame retardancy, and its limiting oxygen index is between 45% and 55%. Excellent thermal stability, the fiber does not melt, does not soften and shrink, and has no dissolved droplets during combustion. It is a quasi-non-combustible product; it has good heat insulation effect, acid and alkali corrosion resistance, chemical environment resistance, and radiation resistance. It is suitable for textile processing performance, fabric light weight, soft, good water absorption and other advantages.
The most important function is it can be self-extinguishing when exposed to flame. This is why pan fiber carbon precursors must first be oxidized before they can be carbonized. So it is used for effective heat-blocking and fire barrier materials.
The fiber pan mat can work for a long time at a high temperature of 220°C without aging or shrinkage, and can withstand high temperatures of 1000°C without burning.
In conclusion, pre-oxidized Pan fibers are flame retardant, high temperature resistant, chemically resistant, light and comfortable, easy to handle and environmentally friendly, making them suitable for making various clothing, household and industrial products.
Pre-oxidized Pan fiber is a kind of synthetic fiber, which is made of polyamide prepolymer under high temperature and high pressure conditions. It has excellent characteristics such as flame retardancy, high heat resistance and high chemical resistance, so it has a wide range of application fields.
Pre-oxidized pan fibers can be used for spinning and weaving, and are widely used in firefighting clothing, welding clothing, furnace clothing in steel factories and aluminum factories, which can well protect the safety of workers. The preoxidized pan is available for all forms of textile processing including needle punching, stitch-bonding, hydroentangling, thermal bonding, chemical bonding, air-laying, wet-laying, ring spinning, stretch-breaking, weaving, knitting and braiding. End uses include aircraft brake preforms, transportation heat and flame blocking layers, fireproof blanket, welding blanket, kitchen fire cover, wine cover, machine protective shield, thermal barrier, thermal, acoustical and vibration insulation liners, flame resistant apparel, intumescent mesh and as raw materials for carbonized and graphitized yarns, fabrics and felts.
Pre-oxidized silk fiber has excellent heat resistance and chemical resistance, and can be used to make industrial equipment, chemical equipment, filters, etc. under high temperature and high pressure.
Pre-oxidized Pan fiber has excellent electrical insulation properties and can be used to make high-voltage cables and electronic components.
Pre-oxidized Pan fibers can also be used to make high-performance sports equipment, aerospace equipment, etc.
In a word, pre-oxidized Pan fiber has a wide application prospect due to its excellent physical and chemical properties.
Pre-oxidized fiber (POF for short) is a fiber material with high temperature performance, and good flame retardancy. It is mainly made of synthetic resin such as polypropylene, and is oxidized at high temperature.
The following are several industrial applications of oxidized pan fiber:
Pre-oxidized Pan fiber is one of the important raw materials for manufacturing aerospace structural materials. It can be used to manufacture parts such as aircraft fuselage and wings, as well as spacecraft shells and heat shields.
Pre-oxidized Pan fibers can be used to manufacture structural materials for high-speed trains, automobiles, trucks and other vehicles, such as body, frame, wheels, etc.
Pre-oxidized Pan fiber has excellent flame retardancy and high temperature resistance, and can be used to manufacture sealing materials, heat insulation materials, and fireproof materials for petrochemical equipment.
Pre-oxidized Pan fibers can be used to manufacture high-temperature cables, insulating materials, circuit boards and other electronic and electrical products.
Pre-oxidized Pan fiber can be used to manufacture high-temperature heat insulation materials, fireproof materials, building structural materials, etc., which can improve the safety and service life of buildings.
Milled PANOX fibers are used as a non-hazardous and heat resistant organic fiber filler for brake and friction compounds. These fibers are an excellent alternative to more hazardous materials such as asbestos. Typical applications include automotive brake pads, high-performance motor sport brake pads, brake linings for trains, and friction linings for elevators.
Non-crimped staple fibers are used in compounding and molding applications to provide a textured surface appearance to interior components in automotive, rail, and marine applications. As well as improving the cosmetic appeal of these surfaces, the PANOX fibers also improve the fire protection and chemical resistance of these parts.
Crimped PANOX fibers are made from continuous fiber tow. They are supplied with a special sizing that improves cohesion. Together with a carefully optimized crimp level, this ensures that carding processes run continually and reliably, with good productivity. Crimped staple fibers are available in a range of lengths to suit different non-woven processes and equipment.
