Aramid + polyester composite nonwoven fabric is used to manufacture special protective clothing and equipment.

The composite fabric made of aramid nonwoven fabric and polyester nonwoven fabric typically has a structure in which one side consists of an aramid (aromatic polyamide) fiber-based nonwoven layer, while the other side consists of a polyester (polyester) fiber-based nonwoven layer.

The fabric features dual-sided protection: on one side, the aramid fiber provides high strength and high modulus, as well as excellent resistance to tensile stress and deformation. Aramid boasts exceptional high-temperature resistance and flame retardancy; it has an extremely high melting point and decomposition temperature, and under high temperatures, it neither melts nor flows—only carbonizes. It can be used continuously at temperatures ranging from 180°C to 200°C, and can briefly withstand even higher temperatures. Once removed from the ignition source, it self-extinguishes without leaving any residual flames. Moreover, during combustion, it does not produce molten droplets, thus eliminating the risk of secondary burns. Additionally, aramid exhibits excellent corrosion resistance, chemical resistance, and radiation resistance, enabling it to maintain structural stability even in harsh environments.

On the other side is polyester, or polyethylene terephthalate fiber, which boasts high strength, excellent elastic recovery, and good dimensional stability. It exhibits good acid resistance but is prone to hydrolysis when exposed to high temperatures and strong alkaline solutions.

The aramid surface, serving as the primary protective layer, leverages its high strength and high modulus to effectively resist tearing, puncture, and high-speed impacts. Thanks to its high-temperature resistance and flame-retardant properties, it can isolate heat and slow down the spread of flames. The polyester surface, acting as a secondary protective layer and a base support layer, features excellent elasticity that helps absorb and dissipate some of the impact energy, providing cushioning support for the aramid layer and preventing it from cracking due to excessive brittleness under stress. In thermal protection applications, the polyester layer further isolates heat conduction, enhancing the overall safety of the fabric.

The polyester nonwoven fabric layer can come into contact with the human body or the inner walls of equipment, providing a relatively soft surface feel. In addition to its protective properties, this fabric also offers a certain level of wearing comfort and adaptability to internal device environments, thereby broadening its range of applications.

Applications of aramid nonwoven fabric + polyester nonwoven fabric:

1. High-end vehicle interiors and industrial materials

In composite fabrics, the aramid surface meets stringent flame-retardant standards, effectively preventing the spread of fire. Its high strength and excellent fatigue resistance also make it ideal for load-bearing components such as seat cushions and door panel linings. The polyester surface, on the other hand, provides the necessary resilience, wear resistance, and a degree of sound insulation and vibration damping. Moreover, its surface is easily amenable to decorative treatments like dyeing and embossing, satisfying aesthetic requirements. The combination of these two materials addresses the modern demands of automobiles, high-speed trains, aircraft, and other vehicles for lightweight, safe, and comfortable interior materials.

2. Special protective clothing and equipment

This protective garment, made from a composite material, features an aramid outer layer that provides resistance to flames, high-temperature molten splashes, and mechanical damage; while a polyester inner layer enhances wearing comfort and facilitates the wicking of sweat vapor via capillary action. Similarly, this material is also suitable for manufacturing high-performance equipment such as welding blankets, insulated gloves, and cut-resistant sleeves, which find applications in fields including firefighting, metallurgy, power generation, and the military.

3. High-performance industrial filtration materials

In the field of high-temperature flue gas filtration for industries such as chemical engineering, steelmaking, cement production, and incineration, the aramid surface of the aramid/polyester composite filter material directly contacts the high-temperature, dust-laden gases, providing primary thermal resistance and filtration performance. The polyester surface serves as a supporting layer, enhancing the overall dimensional stability and reducing system pressure drop.

E-mail:
gdkaidun@163.com

Phone/WeChat:
86-131-3828-6677

Address:
Room 401, Building 21, No. 1, Keqing Road, Yundonghai Street, Sanshui District, Foshan City, Guangdong Province