aramid fiber powder

Product Overview

The milled aramid fiber powder produced by Shenzhen Feige Composite Fiber Co., Ltd. is manufactured from Kevlar (PPTA) fibers through a specialized processing procedure. The fibers are first cut into short segments and then subjected to fibrillation, grinding and screening to produce a fine fiber powder with a large specific surface area.

This structure provides good adsorption properties and enables the aramid powder to combine effectively with resins, fillers and other matrix materials. The material is characterized by high strength, low density, thermal stability and resistance to various mechanical and chemical conditions.

High-Strength Aramid Fiber Powder

Aramid fiber powder has a characteristic yellow appearance and offers a high strength-to-weight ratio. According to the supplied performance data, its weight-specific tensile strength is approximately six times that of steel wire, three times that of glass fiber and two times that of high-strength nylon industrial yarn.

Its tensile modulus is also significantly higher than many conventional reinforcement materials, reaching approximately three times that of steel wire, twice that of glass fiber and ten times that of high-strength nylon industrial yarn.

These properties make milled aramid fiber powder suitable for applications where reinforcement, wear resistance, thermal stability and lightweight construction are important.

Main Performance Characteristics

The key properties of the aramid fiber powder include:

• Low density

• High tensile strength

• High elastic modulus

• Low elongation

• High breaking strength

• Excellent thermal stability

• Low thermal expansion coefficient

• Low shrinkage

• Good dimensional stability

• Resistance to puncture and cutting

• High temperature resistance

• Flame resistance

• Chemical corrosion resistance

• Resistance to strong acids and alkalis

• Good flexural and fatigue resistance

• Good friction and wear resistance

• Electrical insulation and non-conductivity

Aramid fiber does not melt or readily support combustion under the stated conditions and tends to carbonize when exposed to high temperatures.

Reinforcement for Resins and Fillers

The fibrillated structure created during milling increases the powder's surface area, allowing it to interact effectively with resin systems and fillers.

This makes milled aramid fiber powder suitable for use as a reinforcing or functional filler in different composite formulations. It can help manufacturers develop lightweight materials while maintaining desirable mechanical, thermal and wear-related properties.

Wide Range of Applications

Plastics Industry

Aramid fiber powder can be incorporated into plastic and composite formulations, including materials based on nylon 66, epoxy resin and other polymer systems.

Rubber Products

In the rubber industry, it can serve as a reinforcing filler for products such as:

• Transmission belts

• V-belts

• Transmission gears

• Tires

• Other wear-resistant rubber components

Friction and Sealing Materials

Its combination of strength, friction resistance and thermal performance makes it suitable for friction and sealing applications, including:

• Shoe soles

• Friction plates

• Brake pads

• Clutch plates

• Modified plastic particles

Aerospace and Transportation

Aramid fiber powder can be used in composite materials and components associated with aerospace and transportation applications, including aircraft structures, propellers, brake components, engine shafts and casings.

Sports Equipment

The material can also be incorporated into composite sports products such as:

• Fishing rods

• Golf clubs

• Tennis rackets

• Badminton rackets

• Baseball bats

• Sailboats

• Cruisers

• Snowboards

• Bicycles

Industrial and Energy Applications

Potential industrial applications include automobile engines, motorcycle helmets, mechanical components, wind turbine blades, textile accessories, heating wires, natural gas cylinders and transmission pipelines.

Medical Equipment

Aramid-reinforced materials can also be used in selected medical equipment and structural components, including X-ray equipment, surgical supplies, wheelchairs and human-support frames.

Construction and Civil Engineering

The material can be incorporated into construction and civil engineering products, including cable-related sealing materials, concrete reinforcement systems and shipbuilding materials.

Product Storage

Milled aramid fiber powder should be kept in a dry storage environment. Recommended storage conditions are room temperature with relative humidity maintained at approximately 50–70%.

Proper storage helps maintain the material's physical condition before it is processed or incorporated into composite formulations.

Packaging Options

Different packaging formats are available according to shipment quantity and customer requirements.

The packaging format can be selected according to the customer's handling, storage and transportation requirements.

Milled Aramid Fiber Powder for Composite Applications

With its combination of low density, high strength, high modulus, thermal resistance, chemical resistance and wear performance, milled aramid fiber powder provides a versatile reinforcement option for polymer, rubber, friction and composite materials.

Its fibrillated powder structure also makes it suitable for applications where effective interaction with resins and fillers is required, providing manufacturers with greater flexibility when developing lightweight, high-performance composite formulations.