Abstract: The present invention relates to the use of composite materials as thickening agents for aqueous solutions, said material comprising carbon nanotubes (CNTs) and at least one hydrophilic (co)polymers. The invention relates more particularly to the use of the materials described above as thickening agents n one of the fields chosen: from the following: the papermaking field, the oil field and also the fields of paint, water treatment, detergents, ceramics, cements, or hydraulic binders, civil engineering, inks and varnishes, and textile sizing.

Abstract: The present invention relates to the use of composites based on carbon nanotubes as viscosity enhancers for aqueous solutions, characterized in that said composite comprises carbon nanotubes (CNTs) and at least one hydrophilic (co) polymer. More particularly, the invention relates to the use of the composites described above as viscosity enhancers in industrial sectors such as, especially, the papermaking sector, and in particular for coating paper and for weighting paper, in the oil sector, or else in the paint, water-treatment, detergent, ceramic, cement, hydraulic-binder, public-works, ink, varnish and textile-sizing sectors.

Abstract: The present invention describes a composite material based on a polymer matrix in which carbon nanotubes are dispersed, and also a process for obtaining such a material. The process of the invention is based on the use, as compatibilizer, of a block copolymer obtained by controlled radical polymerization and having at least one block bearing acid and/or anhydride functions. Such a compatibilizer makes it possible to control and optimize the interfacial interactions and thus to obtain a stable composite material that has good properties for use.