Graphene Composite Powder Coating Prevents Re-stacking

The patent introduces high-molecular compounds as intermediary substances that coat the graphene surface and micro/nano structure materials as spacers that physically separate adjacent graphene sheets. This intermediary approach resolves the contradiction by maintaining the simple oxidizing-reducing manufacturing process while preventing graphene aggregation through surface modification and physical separation, thereby improving dispersing ability without complicating the core production method.

The patent creates a composite material system by combining graphene with high-molecular compounds and micro/nano structure materials. This composite structure maintains the cost-effectiveness of the oxidizing-reducing method while adding functional components that prevent dusting and improve handling. The high-molecular compound coating and micro/nano spacers create a more stable, less dusty powder that is easier to store and transport without increasing production complexity.

The patent applies local quality modification by selectively coating only the graphene surface with high-molecular compounds and inserting micro/nano structure materials at specific locations between graphene sheets. This localized approach improves dispersing ability at the critical interface regions without requiring bulk expansion of the entire material structure, thereby minimizing volume increase while achieving better dispersion characteristics.