Method for manufacturing a composite material comprising a polymer and nanomaterials

Method for manufacturing a composite material comprising a polymer and nanomaterials, the method comprising the following steps:

• a) dissolution of the polymer in a first solvent, whereby a first solution is obtained,
• b) dispersion of the nanomaterials in a second solvent, different from the first solvent, whereby a second solution is obtained,
• c) mixing of the two solutions, whereby a third solution is obtained,
• d) heating of the third solution so as to evaporate at least 10% by volume of the second solvent, whereby a final solution is obtained,
• e) deposition of the final solution on a substrate or injection of the final solution into a mould and evaporation of the first solvent, and evaporation of the volume fraction of the second solvent not evaporated during step d),
• wherein the second solvent has a boiling point lower by at least 30° C. than that of the first solvent,
• wherein the viscosity of the final solution is about 20% of the viscosity of the first solution, and
• and wherein substantially no portion of the first solvent is evaporated during step d).