Fibre composites – find manufacturers and suppliers

Fiber composites consist of at least two different material components - a reinforcing fiber and a surrounding matrix.

The great advantage of fiber composites is that they offer very high strength and rigidity with low weight. This makes it possible to produce components that are both resilient and lightweight. For this reason, they are used in many high-tech areas, for example in aerospace, vehicle construction, mechanical engineering and construction.

The following is a comprehensive overview of how they work, the most important types, the typical areas of application and the advantages of fiber composites.

How fiber composites work:

The functionality of a fiber composite material is based on the targeted combination of two material components with different properties.

The first component is the reinforcing fibers. These fibers take on most of the mechanical load.
They are characterized by high tensile strength and stiffness and ensure that the component remains dimensionally stable even under high loads.

The second component is the matrix. This is usually a polymer resin, more rarely metal or ceramic.
The matrix encloses the fibers and fulfills several important functions:
It holds the fibers in position, transmits forces between the fibers, protects them from environmental influences and ensures the shape of the component.

It is the interaction between fibers and matrix that creates the typical properties of a fiber composite material.
While the fibers are responsible for strength and rigidity, the matrix provides stability, load transfer and protection.

Another important aspect is the orientation of the fibers. The mechanical properties of a fiber composite material can be specifically influenced by arranging the fibers in certain directions.
This allows components to be developed that are precisely matched to the load directions of an application.

Types of fiber composites:

Fiber composites can be classified according to various criteria. The most important distinction is based on the type of reinforcing fibers used.

1. Glass fiber reinforced plastics (GRP):
   Glass fiber reinforced plastics are among the most commonly used fiber composites.
   They consist of glass fibers embedded in a polymer matrix.
   GFRP offers a good combination of strength, low weight and comparatively low costs.
   Glass fibers are also corrosion-resistant and electrically insulating.
   These materials are used in vehicle construction, boat building, construction and wind energy, among others.
2. Carbon fiber reinforced plastics (CFRP):
   Carbon fiber-reinforced plastics are characterized by particularly high strength and rigidity at a very low weight.
   Carbon fibers have an extremely high tensile strength and excellent fatigue resistance.
   CFRP is primarily used in applications where maximum performance with minimum weight is required, for example in aviation, motor sports or high-performance mechanical engineering.
3. Aramid fiber-reinforced plastics:
   Aramid fibres, known by trade names such as Kevlar, are characterized by very high impact strength and excellent energy absorption.
   They are particularly resistant to mechanical stress and have high cut and puncture resistance.
   These properties make aramid fiber composites ideal for protective applications, for example in bulletproof materials, protective clothing or safety structures.
4. Fiber composite plain bearings:
   Fiber composites have become particularly well established in applications where high loads, corrosion resistance and dry running are crucial.
   They usually consist of a solid matrix, e.g. thermosetting plastics such as phenolic resin and embedded glass or carbon fibers, which are given self-lubricating properties by embedded solid lubricants such as PTFE, MoS2 or graphite.
5. Natural fiber-reinforced plastics:
   In addition to synthetic fibers, natural fibers such as flax, hemp or jute are increasingly being used.
   These materials are lightweight, renewable and more environmentally friendly than many synthetic alternatives.
   Natural fiber composites are often used in automotive interiors, consumer products or in the construction industry.
6. Metal matrix and ceramic matrix composites:
   In addition to polymeric matrices, fiber composites with metallic or ceramic matrices also exist.
   These materials are designed for extreme conditions, such as high temperatures or extreme mechanical loads.
   They are used in aerospace technology, turbines and high-temperature applications, among others.

Use of fiber composites:

Fiber composites are used in a variety of industries, especially where high mechanical performance with low weight is required.

1. Aerospace:
In aviation, fiber composites are used for aircraft structures, wings, fuselage parts or interiors.
The low weight makes a significant contribution to reducing fuel consumption.

2. Automotive and vehicle construction:
Fiber composites are also playing an increasingly important role in vehicle construction.
They are used for body parts, chassis components and interior trim.
Lightweight materials are particularly important in the field of electromobility in order to improve range and efficiency.

3. Wind energy:
Rotor blades of modern wind turbines are often made of glass or carbon fiber-reinforced composite materials.
These materials enable large rotor blades with high stability.

4. Construction:
In construction, fiber composites are used for bridge reinforcements, facade elements or load-bearing structures.
They offer high strength and are also corrosion-resistant.

5. Sports and leisure industry:
Many sports equipment is made of fiber composites, for example bicycles, tennis rackets, skis or surfboards.
The low weight and high rigidity improve the performance of these products.

6. Mechanical engineering:
In mechanical engineering, fiber composites are used for lightweight structures, machine parts or moving components or plain bearings, where weight, stability and freedom from maintenance play an important role.

Advantages of fiber composites:

Fiber composites offer a number of significant technical advantages over traditional materials.

• One key advantage is the exceptional strength-to-weight ratio. Components can be designed to be significantly lighter without losing stability.
• Another advantage is the high corrosion resistance. Many fiber composites are insensitive to moisture, chemicals or weathering.
• Their mechanical properties can also be specifically adapted. The choice of fiber types, the arrangement of the fibers and the selection of the matrix allow materials to be tailored precisely to the requirements of an application.
• High fatigue resistance is also an important advantage. Fiber composites can often withstand repeated loads better than many metals.
• In addition, modern manufacturing processes enable the integration of complex shapes and functions in a single component, which can reduce assembly costs and material consumption.
• Finally, due to their low weight, fiber composites often contribute to improving the energy efficiency of technical systems, for example through lower fuel consumption or reduced drive power.

Fiber composites are highly developed materials that achieve exceptional mechanical properties through the combination of fibers and matrix. They combine high strength, rigidity and resistance with a comparatively low weight. Thanks to different fiber types and matrix materials, fiber composites can be adapted to a wide range of technical requirements. As a result, they have become indispensable in many modern branches of industry, with applications ranging from aerospace and automotive engineering to construction and energy technology. Thanks to their versatile properties, fiber composites make an important contribution to innovative, efficient and sustainable technical solutions.

The following is an overview of the most important points to consider when purchasing fiber composites:

Fiber composites have become indispensable high-performance materials in many branches of industry. They combine very high strength and rigidity with a comparatively low weight and also offer good corrosion resistance and a wide range of options for adapting to specific requirements. However, the professional purchase of fiber composites requires a careful analysis of the technical requirements and application conditions. A well-founded selection is therefore crucial in order to guarantee the performance, safety and cost-effectiveness of the subsequent application.

• The first step in the purchasing process is a detailed analysis of the mechanical requirements of the planned application. Fiber-reinforced composites must be selected in such a way that they can permanently withstand the loads that occur.
• Several factors play an important role here. These include the maximum tensile, compressive and bending forces that can occur during operation.
• Equally relevant are dynamic loads, repeated load changes or possible impact loads.
• The direction of the load is also decisive, particularly in the case of fiber composites.
• As their mechanical properties are strongly dependent on the fiber orientation, the directions in which the main forces act must be taken into account at the material selection stage.
• A careful analysis of these loads forms the basis for the selection of a suitable material system.
• The type of reinforcing fibers used has a decisive influence on the mechanical properties of the composite material.
• Glass fibers are often used because they offer a good strength-to-weight/cost ratio. They are also corrosion-resistant and are suitable for many industrial applications.
• Carbon fibers offer significantly higher stiffness and strength at an even lower weight. They are therefore primarily used in high-performance applications, for example in aviation or motor sports.
• Aramid fibres are characterized by very high impact strength and excellent energy absorption. They are particularly suitable for applications with high impact loads or protective functions.
• Natural fibers are also becoming increasingly important, especially in applications with sustainability requirements.
• When purchasing, careful consideration should therefore be given to which type of fiber best meets the requirements in terms of mechanical properties, weight and cost.
• In addition to the fibers, the matrix material also determines the properties of the fiber composite material.
• In many applications, thermosetting plastics such as epoxy resins, polyester resins or vinyl ester resins are used. These materials offer high strength, good chemical resistance and stable mechanical properties.
• Thermoplastic matrices are also becoming increasingly important. They enable shorter production times, better recyclability and, in some cases, higher impact strength.
• The selection of a suitable matrix system should be based on the requirements in terms of temperature resistance, chemical stress, processing methods and mechanical properties.
• A decisive advantage of fiber composites is that their properties can be adjusted by the specific orientation of the fibers.
• When purchasing, therefore, not only the material itself should be considered, but also the structure of the laminate. The orientation of the fiber layers significantly influences the stiffness and strength in different directions.
• Depending on the application, unidirectional fibers, woven fabrics, multiaxial fabrics or randomly oriented fiber mats can be used.
• Careful adjustment of the laminate structure to the load situation enables optimum utilization of the material properties.
• The manufacturing process has a major influence on the quality and properties of fiber composite components.
• Common processes include manual lamination, vacuum infusion, prepreg processes, resin transfer molding or automated fiber placement processes.
• When purchasing, it should be checked which manufacturing process the supplier uses and whether this process is suitable for the respective application. Aspects such as dimensional accuracy, surface quality, absence of pores and fiber content are also important.
• A high level of process control and modern production technologies make a decisive contribution to the quality of the end product.
• Fiber composites are often used in demanding environments. Therefore, the environmental conditions must also be carefully considered.
• These include, for example, temperature ranges, humidity, UV radiation and chemical influences. Some matrix materials react sensitively to high temperatures or aggressive chemicals.
• The material's resistance to ageing also plays an important role, especially for long-term outdoor applications or in industrial plants.
• The choice of material should therefore ensure that the composite material remains permanently stable under the intended conditions of use.
• In many industries, fiber composites must comply with certain standards and quality requirements. This applies in particular to safety-critical applications such as aviation, construction or automotive engineering.
• When purchasing professionally, you should check whether the products are manufactured and tested in accordance with recognized standards. This includes, for example, mechanical tests, quality certificates or traceability of materials.
• Reliable quality assurance at the manufacturer is crucial for the long-term safety and performance of the components.
• Working with an experienced manufacturer is another important factor. Fiber composites are complex materials whose properties depend heavily on design, processing and quality control.
• A competent supplier can provide technical advice, assist with material selection and help develop customized solutions.
• Aspects such as stable supply chains, reliable production capacities and long-term availability of spare parts also play an important role for industrial applications.
• In addition to the technical properties, economic aspects should also be taken into account. The purchase price alone often does not give a complete picture of the actual costs.
• Due to their low weight, high corrosion resistance and long service life, fiber-reinforced composites can offer considerable savings in the long term.
• An economic evaluation should therefore also take into account factors such as maintenance costs, energy savings, service life and possible weight reductions.

The professional purchasing of fiber composites is a complex process that goes far beyond the selection of a simple material. A careful analysis of the mechanical requirements, the selection of suitable fibers and matrix systems as well as an optimal coordination of fiber orientation and laminate structure are crucial. In addition, manufacturing processes, environmental resistance, conformity to standards and the manufacturer's expertise play an important role. Economic aspects and long-term life cycle costs should also be included in the decision-making process. Companies that systematically take these factors into account can make the most of the advantages of fiber composites and ensure that their components are reliable, efficient and cost-effective.

Fiber composites can be purchased from various suppliers. Comprehensive information about manufacturers and suppliers of Fiber composites from all over the world can be found on Exportpages.