An international team of Chinese and American scientists has developed a super tough and highly conductive graphene composite film. It can be prepared at room temperature with low cost and is expected to replace the widely used carbon fiber materials.　
　　According to a new study, Professor Cheng Qunfeng project group of Beijing University of Aeronautics and Astronautics and The Ray bowman’s team at the university of Texas at Dallas who are inspired by the mechanical structure of natural mother-of-pearl, produced an ordered layered graphene structure similar to graphene structure of the pearl mother.
　　The researchers drew on the results of others the layered connection of mother-of-pearl. By introducing covalent bonds and conjugated bond, etc between graphene oxide layers and stitching the graphene nanoparticles together, a highly conductive and highly conductive graphene film has been developed.
　　The researchers said the preparation conditions of traditional carbon fiber materials must exceed 2500℃ while the new material can be prepared at room temperature below 45℃. The new material’s strength is equivalent to the carbon fiber composite and the cost is cheaper. It’s easy to achieve commercial scale preparation.