Carbon fiber reinforced polymer recycling

Treatment of CFRP (semi-preg) in form of woven fabric

Before

Black carbon fibers and a white resin are woven together. The resin is also contained at spaces between the carbon fibers.

After

The resin component is completely decomposed. Only the carbon fibers can be recovered in the form of woven fabric.

Treatment of CFRP (pre-preg) in form of sheet

Before

A product obtained by forming unidirectional long carbon fibers into a sheet by using a resin.

After

The resin component is completely decomposed and the carbon fibers can be recovered in the form of long fibers.

Electron micrograph

Before

Before treatment

After

All the resin components on the surfaces of the carbon fibers and in the spaces between the carbon fibers can be completely decomposed. There are no damages such as a scratch on the surfaces of the carbon fibers recovered after the decomposition treatment.