Generally, high-strength lightweight materials which exhibit a high degree of resistance to external force and have a light weight are required in industries such as automobiles and construction materials.
A typical technique for manufacturing a composite material is used to develop a material having a light weight while exhibiting similar strength to metal by mixing and impregnation of a plastic resin with fibers.
Typically, composite materials can exhibit strength and hardness varying with lengths of fibers and mixing methods.
Materials having excellent moldability while exhibiting a certain level or higher of properties are required depending on purposes of composite materials.
However, since a typical mat uses a nonwoven fabric-form polymer and a single type of fiber, a manufacturing device is simple, there is a difficulty in application of the device, and a composite material exhibiting excellent moldability and properties cannot be produced.