What is carbon fiber prepreg?

Prepreg refers to the intermediate of composite materials made by impregnating matrix materials in reinforcing fibers. There are many kinds of matrix materials, such as resin, metal, rubber, ceramics, etc., and there are many reinforcing fibers, such as carbon fiber, glass fiber, aramid fiber, etc.
Carbon fiber prepreg is a carbon fiber composite material processed by coating, hot pressing, cooling, laminating, coiling and other processes after carbon fiber is fully infiltrated into the resin matrix, also known as carbon fiber prepreg.