Epoxy Resin Application in Carbon Fiber Reinforced Resin Composite

Description

Carbon fiber reinforced resin composite or carbon fiber reinforced plastic (CRFP) is a new type of engineering material with high strength, high stiffness, light weight and other characteristics. CFRP has been widely used in aviation, aerospace, automotive, sports equipment and other fields.

Preparation of CFRP

Fiber pre-treatment

The surface condition of carbon fiber, as a reinforcing material for CFRP, has an important influence on the performance of the composite material. The traditional method is to use practices such as acid washing and oxidative external treatment, but it brings environmental pollution and toxicity problems. Nowadays, surface modification is achieved by using inorganic coating and nano-flake stripping technology to enhance the mechanical properties and durability of composites.

Resin matrix preparation

The resin matrix of CFRP is usually an epoxy or phenolic resin. During the preparation process, different ratios and curing conditions need to be adjusted to obtain the desired properties, considering the adhesion of the resin matrix to the fibers.

Composite of reinforcing material and matrix

In this step, fibers and resins need to be mixed and then layered and compressed to form a composite structure. Different methods of addition affect the properties of the material, such as unidirectional, bidirectional and multidirectional.

Application

• CFRP is widely used as material for missiles, space platforms and launch vehicles. At present, the application of CFRP in spacecraft has become mature, and it is a key material indispensable for realizing the lightweight, miniaturization and high performance of spacecraft.

• CFRP is widely used as material for ship hull structures. CFRP blades are not only lighter and thinner, but also improve air bubble performance, reduce vibration and underwater characteristics, and reduce fuel consumption.

• CFRP is widely used as material for the body structure of rail vehicles. CFRP is the focus of the new generation of high-speed rail train body material selection, which not only makes the rail train body lightweight, but also improves high-speed running performance, reduces energy consumption, reduces environmental pollution, and enhances safety.

• CFRP is widely used as material for the body structure of electric vehicles, with the best lightweight effect among the existing materials.

• CFRP is widely used as material for wind turbine blades. CFRP is a key material in the manufacture of large blades, compensating for the lack of performance of glass fiber composites (GFRP).

Let's explore more other high-end applications of epoxy resins in future co-operation.