Patent
Stable dispersions of polymer-coated graphitic nanoplatelets
Reads0
Chats0
TLDR
In this paper, a method of making a dispersion of reduced graphite oxide nanoplatelets is presented, in which the reduced GNOs are reduced to an extent to provide a higher C/O ratio than GNO.Abstract:
A method of making a dispersion of reduced graphite oxide nanoplatelets involves providing a dispersion of graphite oxide nanoplatelets and reducing the graphite oxide nanoplatelets in the dispersion in the presence of a reducing agent and a polymer. The reduced graphite oxide nanoplatelets are reduced to an extent to provide a higher C/O ratio than graphite oxide. A stable dispersion having polymer-treated reduced graphite oxide nanoplatelets dispersed in a dispersing medium, such as water or organic liquid is provided. The polymer-treated, reduced graphite oxide nanoplatelets can be distributed in a polymer matrix to provide a composite material.read more
Citations
More filters
PatentDOI
High yield preparation of macroscopic graphene oxide membranes
Zhengtang Luo,Alan T. Johnson +1 more
TL;DR: In this article, the surface area of a graphene oxide membrane is shown to have a surface area above about 200 μm and exhibit electrical conductivity in excess of about 200 S/m.
Patent
Graphene film as transparent and electrically conducting material
TL;DR: In this paper, a transparent and conductive film comprising at least one network of graphene flakes is described, which may further comprise an interpenetrating network of other nanostructures, a polymer and/or a functionalization agent(s).
Patent
Functional graphene-rubber nanocomposites
TL;DR: In this article, a polymer composition, containing a polymer matrix which contains an elastomer; and a functional graphene which displays no signature of graphite and/or graphite oxide, as determined by X-ray diffraction, exhibits excellent strength, toughness, modulus, thermal stability and electrical conductivity.
Patent
Power storage device
Shunpei Yamazaki,Konami Izumi +1 more
TL;DR: In this paper, a power storage device including a positive electrode having a positive electrode current collector, a positive-electrode active material with a plurality of first projections on the positive-electric-current collector, and a first insulator on an end of each of the first projections, was presented.
Patent
Low density lightning strike protection for use in airplanes
TL;DR: In this paper, surface films, paints, or primers can be used in preparing aircraft structural composites that may be exposed to lightning strikes, and methods for making and using these films and primers are also disclosed.
References
More filters
Journal ArticleDOI
Layer-by-Layer Assembly of Ultrathin Composite Films from Micron-Sized Graphite Oxide Sheets and Polycations
N. I. Kovtyukhova,Patricia J. Ollivier,Benjamin R. Martin,Thomas E. Mallouk,Sergey A. Chizhik,and Eugenia V. Buzaneva,Alexandr D. Gorchinskiy +6 more
TL;DR: In this article, unilamellar colloids of graphite oxide (GO) were prepared from natural graphite and were grown as monolayer and multilayer thin films on cationic surfaces by electrostatic self-assembly.
Journal ArticleDOI
Structure of Graphite Oxide Revisited
TL;DR: In this paper, the authors used 13C and 1H NMR spectra of graphite oxide derivatives to confirm the assignment of the 70 ppm line to C−OH groups and allow them to propose a new structural model for graphite oxides.
Journal ArticleDOI
Safe and Convenient Procedure for Solvent Purification
TL;DR: This procedure provides a nonhazardous alternative to distillations and vacuum transfers and does not require undue supervision or cooling, yet allows for the rapid collection of large quantities of extremely pure solvents on demand.
Journal ArticleDOI
Analysis of Macromolecular Polydispersity in Intensity Correlation Spectroscopy: The Method of Cumulants
TL;DR: The first order electric field correlation function of laser light scattered by polydisperse solutions of macromolecules can be written as a sum or distribution of exponentials, with decay rates proportional to the diffusion coefficients of the solute molecules as discussed by the authors.