Abstract: The invention concerns a composition comprising a first polyamide, a second polyamide, different from the first polyamide, and 0.1 to 5% by weight of carbonaceous nanofillers, in which: a) the first polyamide comprises a unit derived from the condensation of meta-xylylene diamine or from a mixture of meta-xylylene diamine and para-xylylene diamine with sebacic acid, said first polyamide having a melting temperature Tf1; and b) the second polyamide has a melting temperature Tf2 higher than or equal to Tf1?40° C. The invention also relates to a method for producing said composition and the use thereof for producing various items.

Abstract: The invention concerns a composition comprising a first polyamide, a second polyamide, different from the first polyamide, and 0.1 to 5% by weight of carbonaceous nanofillers, in which: a) the first polyamide comprises a unit derived from the condensation of meta-xylylene diamine or from a mixture of meta-xylylene diamine and para-xylylene diamine with sebacic acid, said first polyamide having a melting temperature Tf1; and b) the second polyamide has a melting temperature Tf2 higher than or equal to Tf1?40° C. The invention also relates to a method for producing said composition and the use thereof for producing various items.

Abstract: One subject of the present invention is a method for preparing a composite preferably containing 10 to 50% by weight of nanotubes, comprising: (a) the introduction, into a mixer, of nanotubes and at least one thermoplastic polymer, such as a homopolyamide or copolyamide, a polycarbonate, SBM or a PEG; (b) the melting of the thermoplastic polymer; and (c) the mixing of the molten thermoplastic polymer and the nanotubes, provided that aplasticizer is introduced upstream of, or in, the melting zone of the polymer. The invention also relates to the composite thus obtained and to its use in the manufacture of a composite product.