US 12,264,223 B2
Method for manufacturing a composite material comprising a polymer and nanomaterials
Bernard Viala, Grenoble (FR)
Assigned to COMMISSARIAT À L'ÉNERGIE ATOMIQUE ET AUX ÉNERGIES ALTERNATIVES, Paris (FR)
Filed by COMMISSARIAT À L'ÉNERGIE ATOMIQUE ET AUX ÉNERGIES ALTERNATIVES, Paris (FR)
Filed on Jan. 26, 2022, as Appl. No. 17/648,997.
Claims priority of application No. 2100814 (FR), filed on Jan. 28, 2021.
Prior Publication US 2022/0235183 A1, Jul. 28, 2022
Int. Cl. C08J 3/215 (2006.01); C08K 3/04 (2006.01); C08K 3/38 (2006.01); C08K 9/02 (2006.01); H01F 1/147 (2006.01)
CPC C08J 3/215 (2013.01) [C08K 3/04 (2013.01); C08K 3/38 (2013.01); C08K 9/02 (2013.01); H01F 1/147 (2013.01); C08J 2325/06 (2013.01); C08J 2327/16 (2013.01); C08J 2333/10 (2013.01); C08J 2363/00 (2013.01); C08J 2379/08 (2013.01); C08K 2003/385 (2013.01); C08K 2201/001 (2013.01); C08K 2201/01 (2013.01); C08K 2201/011 (2013.01)] 17 Claims
 
1. 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 totally evaporate 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,
wherein the second solvent has a boiling point lower by at least 30° C. than that of the first solvent, and
and wherein the viscosity of the final solution is about 20% of the viscosity of the first solution.