70% pre-oxidized pan fiber and 30% meta aramid blend spun yarn

Pre-oxidized fiber and meta-aramid fiber blended yarn are made of pre-oxidized polyacrylonitrile and meta-aramid as raw materials through ring spinning. Polyacrylonitrile pre-oxidized fiber is referred to as pre-oxidized Pan fiber, It is made of polyacrylonitrile fiber as raw material and subjected to high-temperature thermal stabilization treatment. The pre-oxidized fiber has high flame retardancy. The limiting oxygen index is greater than 40%, it has excellent thermal stability. The fiber does not melt, soften, shrink, or dissolve during combustion. It is a quasi-non-flammable product.

Meta-aramid is a type of aromatic polyamide fiber. the full name is polyisophthalamide meta-phenylenediamine fiber, and the English name is meta-aramid PMIA for short, preparation of polyisophthaloyl m-phenylenediamine condensation polymer Aramid 1313 is produced by the condensation polymerization of isophthaloyl chloride (ICI) and m-phenylenediamine (MPD). Poly(m-phenylene isophthalamide) is a well-arranged zigzag-shaped macromolecule that decomposes before melting. The glass transition temperature Tg is 270°C. No obvious decomposition and carbonization will occur below 350℃. When the temperature exceeds 400°C, the fiber gradually becomes brittle and carbonized until it decomposes, but no droplets are produced; it does not burn in flames and has good flame retardancy. The limiting oxygen index LOI is 29%-32%. Excellent flame retardant properties. We also call meta-aramid 1313, NOMEX, CONEX, TAMETAR, meta-aramid fiber is an inherently heat-resistant and flame-retardant fiber that will not melt, drip, or support combustion. It has high-temperature resistance, flame retardancy, insulation, wear resistance, and good dimensional stability. Advantages: The chemical structure of the meta-aramid fiber is very stable, and it is resistant to weak acids, weak bases, and most parts of organic compounds, such as ketones and alcohols, have very good resistance to chemicals, so they are widely used in environmental protection, filtration, high-performance protective products and electrical insulation, honeycomb materials for aircraft and high-speed train applications, etc.  

The spinning process of pre-oxidized meta-aramid yarn is divided into:

Blowing room--carding--pre-drawing--bar drawing--combing--first draw--second draw--roving--spun yarn--winding, Preoxidized pan and meta-aramid blended yarn has very good textile processing properties. The fabric made of pre-oxidized pan and meta-aramid blended yarn is light, soft, strong, has a good heat insulation effect, and is corrosion-resistant.

It has the advantages of resistance to the chemical environment and good radiation resistance. The flame-retardant and high-temperature-resistant heat-insulating pre-oxidized pan and meta-aramid blended yarn produced by Shanghai Shenghe Textile Technology Co., Ltd. is a new type of heat-insulating material with good flexibility, low thermal conductivity, corrosion resistance, high-temperature resistance, and does not delay ignition etc, It is widely used in fire protection (Firefighting combat clothing cloth/Firefighting fire repellent clothing cloth / Firefighting gloves cloth), Military (Tactical gloves cloth/SWAT gloves cloth / Air Force gloves cloth), Aviation (Aircraft seat fire barrier fabric/Aircraft seat cover) cloth/aviation blanket), petrochemical industry (fire blanket for electric welding construction / petroleum exploration cable reinforcement Materials), steel smelting (furnace fitter clothing, cloth for gloves), shipyards (fire blankets for welding construction), and other industries.

Preox and meta aramid blended yarn application scenarios

Yarns blended with pre-oxidized pan and meta-aramid can be weaved into flame-retardant and high-temperature-resistant gloves. Fabrics made from blended yarns with pre-oxidized and meta-aramid can be used for special flame-retardant clothing, thermal protective clothing, and spark-resistant clothing. Protective welding blankets, firefighting suits, steelmaking suits, clothing fabrics for high-temperature operations, bags, and other outdoor products, It can also be used for industrial cloth, kitchen fire extinguishing covers, winery covers, industrial fire blocking cover to protect the equipments in high temperature environment, flame retardant aviation products, high-speed train products, tunnel fire protection, car hood insulation, fuel tank insulation, high-speed train products, camping tents, etc. Flame retardant industry, stable heat resistance and fire retardant performance can be customized for production.  Yarns blended with pre-oxidized pan and aramid can be braided or woven for use in high-performance FR garments, woven welding blankets, industrial fire protection layers, mechanical seals and gaskets, and high-temperature belts.