▎ 摘 要
NOVELTY - Preparing composite sheet involves stacking and laminating graphene sheet and metal sheet alternately, where the graphene sheet is obtained by processing graphene powder to obtain modified graphene. The modified graphene is subjected to melt extrusion to obtain graphene sheet. The obtained graphene sheet is grazed by metal sheet to obtain the desired product. USE - Method for preparing composite sheet (claimed). ADVANTAGE - The method enables to prepare composite sheet in cost-effective, eco-friendly and energy saving manner. The composite sheet has high thermal conductivity and good optical signal transmission.