▎ 摘　　要

NOVELTY - Preparing graphene involves mixing graphite and intercalating agent and carrying out oxidation reaction of intercalating agent to obtain graphite layer intercalated compound. The obtained graphite layer intercalated compound is soaked in bubble reactant and bubbles are released to obtain graphene dispersion with graphene aggregates. USE - Method for preparing graphene used in transparent electric conduction film and high barrier composite materials (claimed). ADVANTAGE - The method enables to prepare graphene in simple, safe and eco-friendly manner that has high quality, perfect structure and controllable size.