What is Aramid Yarn? Brief Introduction Of Aramid Material

what is aramid? Aramid Fiber, full name “aromatic polyamide fiber”. It known as the world’s three major high-performance fiber materials together with carbon fiber and ultra-high molecular weight polyethylene (UHMWPE). Aramid yarn is a common cable reinforcing material.

At present, aramid mainly includes meta-aramid, para-aramid and heterocyclic aramid. Among them, para-aramid and meta-aramid are the most commonly used.

Brief Introduction of Meta-aramid

Meta-aramid has long-term thermal stability, which is its most important characteristic. Meta-aramid is resistant to high temperature, flame retardant, and has electrical insulation and corrosion resistance. Therefore, it widely used in electrical insulation paper, honeycomb structure materials, high-temperature filter materials and protective clothing. It is an indispensable basic material in the fields of high-speed trains, aerospace, power electronics, industrial dust removal, petrochemicals, marine development and special clothing.

Brief Introduction of Para-aramid

Para-aramid known as “bulletproof fiber” for its good impact resistance, corrosion resistance and fatigue resistance. The strength is 5 to 6 times that of steel wire. The modulus is 2 to 3 times that of steel wire or glass fiber. The toughness is twice that of steel wire. And the weight is only about 1/5 of that of steel wire. The heat resistance of para-aramid is higher than that of meta-aramid. After hundreds of hours at a high temperature of 200℃, it can still maintain its original strength.

The Use Of Aramid in the Field Of Optical Communications

In the field of optical communications, aramid mainly used in indoor optical cables, outdoor optical cables, FTTH optical cables, ADSS optical cables, special optical cables, marine supporting optical cables and other products.

The use of aramid in indoor optical cables can simultaneously play a role in heat insulation, buffering and strengthening. In traditional applications, steel wire often used as the tensile element of optical cables. However, in some special occasions, such as high voltage and other strong electric field places. Metal materials cannot used to prevent lightning strikes. Optical cables use metal-free materials such as aramid. Good insulation performance can avoid lightning strikes, so that optical cables will not be affected. With the increase in the demand for intelligent power grids in my country, ADSS optical cables installed on the same pole as power lines have widely used. The optical cable using aramid as a reinforcement has a cable weight of only one-third of that of ordinary optical cables. It can reduce the load on the power tower caused by the weight of the optical cable. Unlike ADSS optical cables, there is no central reinforcement in the structure of the remote optical cable. In order to increase flexibility, only aramid yarn used as the reinforcement unit.

In products such as mobile optical cables and moored optical composite cables, optical cables with aramid as reinforcement are the only choice because they are lighter, easier to carry, and have strong tensile strength.

Aramid Yarn, An Excellent Fiber Optic Cable Reinforcement Unit Material

What is aramid yarn? Aramid yarn is a high modulus aramid yarn. It is suitable for ADSS fiber optic cables, non-metallic fiber optic cables and indoor fiber optic cables. Aramid yarn for fiber optic cable has special properties. Such as low density, very high tensile modulus, high breaking strength and low breaking elongation. It can maintain inherent stability at higher temperatures. Very low shrinkage, low creep and very high glass transition temperature. In addition, it has high corrosion resistance. It is non-conductive and has strong chemical resistance except for strong acids and strong alkalis. It is an excellent fiber optic cable reinforcement unit material.