What are the benefits of choosing pre-oxidized yarn?
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What are the benefits of choosing pre-oxidized yarn?

Publish Time: 2024-11-06     Origin: Site

Pre oxidized fibers can be applied to various applications that require protection from fire and heat sources, including hydrophilic pre oxidized silk fabrics such as thermal protective clothing, spark protection welding blankets, corrugated compensators, fabrics for carbon fiber reinforced carbon clutches and transmissions, fire-resistant fibers for aircraft seats, flame retardant mattresses, fabrics for automotive disc brake pads and clutch plates, pre oxidized silk fibers, industrial seals, and fillers.


Mostly used in places with high temperature resistance requirements.


The temperature control for pre oxidation is between the glass transition temperature and the cracking temperature, that is, between 200-300 ℃. The purpose of pre oxidation is to transform thermoplastic PAN linear polymer chains into non plastic heat-resistant trapezoidal structures, so that they do not melt or ignite at high carbonization temperatures, maintain fiber morphology, and remain thermodynamically stable. The pre oxidized trapezoidal structure significantly improves carbonization efficiency and greatly reduces production costs. At the same time, pre oxidized fiber (OF) is also an important intermediate product that can be processed into various products through deep processing. Spinning pre oxidized fiber directly enters the market and has been practically applied in many fields.


Flame retardant fiber, using raw materials of flame retardant pre oxidized fiber.


Pre oxidation treatment is a very important intermediate process in the transformation of PAN precursor fibers into carbon fibers. Through pre oxidation treatment, the linear molecular chain structure inside PAN fibers gradually transforms into a heat-resistant ladder structure. This heat-resistant ladder structure can remain non melting and non flammable in a high-temperature environment protected by an inert atmosphere, maintain the fibrous morphology, and ultimately obtain high-performance PAN based carbon fibers.


Pre oxidized fiber non-woven fabric and felt products have better high-temperature resistance and flame retardancy.


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