High heat-resistant carbon nanostructure polymer composite and hybrid composite including the same

A method for preparing a hybrid composite, the method comprising:

• preparing a nanocage structure composed of carbon nanostructure aerogels;
• mixing a polymer with the nanocage structure to prepare a carbon nanostructure polymer composite layer;
• stacking the carbon nanostructure polymer composite layer and a polymer layer to prepare an intermediate material layer;
• providing a carbon fiber layer and stacking the intermediate material layer and the carbon fiber layer on top of each other to form a stack of the intermediate material layer and the carbon fiber layer;
• and
• pressing the stack in a mold at a high temperature.

A method for preparing a hybrid composite, the method comprising:

• preparing a nanocage structure composed of carbon nanostructure aerogels;
• mixing a polymer with the nanocage structure to prepare a carbon nanostructure polymer composite;
• converting the carbon nanostructure polymer composite into powders;
• preparing a carbon fiber layer;
• placing the carbon nanostructure polymer composite powders on at least one of upper and lower surfaces of the carbon fiber layer;
• and
• curing the carbon nanostructure polymer composite powders at a high temperature while pressing the carbon nanostructure polymer composite powders against the carbon fiber layer.

A hybrid composite comprising:

• a carbon nanostructure polymer composite including:
• a nanocage structure composed of carbon nanostructure aerogels;
• and
• thermosetting crosslinked polymer located in inner pores of the nanocage structure;
• and
• carbon fiber tows or carbon fiber layers, wherein the carbon nanostructure polymer composite is disposed in a space between the carbon fiber tows or in a space between the carbon fibers layers.