Aramid Fiber Prepreg Cloth

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Carbon Fiber Prepreg

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Carbon fiber unidirectional prepreg is made by compounding epoxy resin on carbon fiber through high-pressure and high-temperature technology. Composite materials made of carbon fiber yarn, epoxy resin, release paper and other materials, after coating, hot pressing, cooling, laminating, coiling and other processes are called carbon fiber unidirectional prepreg, also known as carbon fiber prepreg cloth.The reason why it is called prepreg cloth is because it is only the initial immersion of resin and carbon fiber, and it is the final immersion when the product is formed.

Prepreg is an intermediate material for the manufacture of composite materials and their parts, and constitutes the basic unit of composite materials. The uniformity and stability of its quality are an important part of ensuring the quality and reliability of composite materials and their parts.Resin-based composite materials (RMC) have high specific strength and specific stiffness, good design performance, and can effectively reduce the structural quality of spacecraft. They are the focus of the development of aerospace materials today and are gradually replacing traditional metal materials.However, with the new development of aerospace technology, the use rate of epoxy resin (EP) has gradually decreased due to its poor dielectric properties, heat resistance, dimensional stability and moisture resistance.On the other hand, new materials such as polyimide (PI), bismaleimide (BMI) and polyetheretherketone (PEEK), although their heat resistance and dielectric properties have been greatly improved, they have defects in poor solubility and high molding temperature, which need to be further improved.In recent years, cyanate resin (CE) has become another high-performance aerospace composite matrix resin after PI and BMI because of its performance, which combines the high temperature resistance of BMI and the good processability of EP, and has excellent dielectric properties. It has a wide range of application prospects.In recent years, the use of carbon fiber composite materials on space vehicles such as satellites and spacecraft has increased year by year, especially carbon fiber prepreg composite materials have been widely used in the main structure of the satellite's central bearing cylinder, substrate, connecting frame, etc., to meet a number of functional needs of spacecraft.