Carbon fiber prepreg is a composite material made of carbon fiber yarn, epoxy resin, release paper and other materials through coating, hot pressing, cooling, laminating, coiling and other processes. For the composite material process, prepreg is the raw material for manufacturing structures, which can be directly used to manufacture various composite material structures. So, are you unfamiliar with the production process of carbon fiber prepreg?

At present, the production of carbon fiber prepreg mostly uses thermosetting resin (such as epoxy resin), and the production processes mainly include solution method and hot melt method.

Solution method: The resin is dissolved in a low boiling point solvent to form a solution with a specific concentration, and then the fiber bundle or fabric is impregnated with the resin solution at a specified speed, and the content of the resin is controlled with auxiliary tools, and then dried to make The solvent with low boiling point evaporates and is wound up later.

Hot melt method: Under a certain pressure and temperature, the resin film and the corresponding fiber or fabric that meet the requirements are pressure impregnated through hot melt dipping, and the material used is the hot melt prepreg. Its advantage is that the resin content is controllable, and it can produce prepregs with a specified weight. This method is generally used in actual production.

At present, many high-performance products use carbon fiber composite materials as structural components. The strength and durability of carbon fiber composite materials depend on the characteristics of carbon fiber prepregs. The types of prepregs vary depending on the field of use. At present, my country's research on this subject has also made significant progress.

The well-known carbon fiber composite materials are made of carbon fiber prepreg through a series of molding processes, and carbon fiber products have also been used in many fields.