Abstract: A method for forming polymer carbon nanotube composites, the method comprising: contacting carbon nanotubes with ozone to functionalize the sidewalls of the carbon nanotubes with at least one oxygen moiety; and reacting the functionalized carbon nanotubes with at least one monomer or at least one polymer or copolymer to attach polymer chains to the sidewalls of the carbon nanotubes.
Type:
Grant
Filed:
November 21, 2008
Date of Patent:
May 21, 2013
Assignees:
Nanoledge Inc., Centre National de la Recherche Scientifique (CNRS)
Inventors:
Kai Schierholz, Patrice Lucas, Bernard Boutevin, François Ganachaud
Abstract: The invention relates to a method for preparing submicronic particles of a thermoplastic polymer encapsulating nanoparticles, said submicronic particles being obtained by nanoprecipitation. The invention also relates to submicronic particles of a polymer encapsulating nanoparticles obtained by said method, and to the use of submicronic particles for making materials reinforced by nanoparticles.
Type:
Application
Filed:
October 7, 2009
Publication date:
November 10, 2011
Applicants:
NANOLEDGE INC., ECOLE NATIONALE SUPERIEURE DE CHIMIE DE MONTPELIER, CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE (C.N.R.S.)
Abstract: The invention concerns a method for making polymeric extruded composite products and carbon nanotubes. Said method includes the following steps: a) performing an oxidation pretreatment of the carbon nanotubes; b) dispersing the nanotubes in a polymer solution; c) extruding the resulting dispersion into an intermediate product; d) drying said intermediate product; e) post-treating said dried intermediate product by hot drawing process; f) post-treating said dried intermediate product of said drawn intermediate product by drawing in an ionic solution; g) performing a formalizing treatment process: Steps e) f) and g) are optional. The extruded polymeric products obtained by the inventive method can contain up to 80 wt. % of nanotubes.