Patent attributes
The present invention discloses a thermally reversible composite material. The thermally reversible composite material comprises a Polyhedral Oligomeric Silsesquioxane (POSS) and a cross-linking agent. The Polyhedral Oligomeric Silsesquioxane comprises a plurality of dienophile groups. The cross-linking agent comprises at least two conjugated diene groups. The cross-linking agent interacts with the plurality of dienophile groups of the POSS though the conjugated diene groups to perform a thermally reversible Diels-Alder cycloaddition cross-linking reaction. The invention is applied as thermally reversible package materials.