Graphene-coated smart contact lenses could protect eyes from EM radiation and dehydration

Researchers at Seoul National University, Graphene Square and Interojo have shown that graphene-coated contact lenses could protect eyes from electromagnetic radiation and dehydration and be used in various healthcare and wearable technologies.

The researchers began by synthesizing a graphene layer on a copper foil using CVD. They then transferred the carbon sheet onto the surface of a contact lens with the help of a polymer layer after etching the copper. "Thanks to its outstanding flexibility, graphene can be coated on the convex lens surface and conform to it," explains the team.

Read the full story Posted: Feb 27,2017

Grafoid unveils a cost-effective graphene coating called GrafeneX

Grafoid, a leading graphene R&D and investment company, announced its entry into the global industrial coatings market with the introduction of its patent pending GrafeneX graphene coatings technology. Grafoid describes the GrafeneX technologies as a cost-effective way of laying down graphene coatings on large surface areas.

GrafeneX is a novel technology that creates a platform for the deposition of graphene and chemically functionalized graphene coatings. This process provides Grafoid with the capability to apply its diverse graphene-based coatings to many different types of material substrates with controllable levels of surface coverage, thickness etc. to meet precise end user requirements.

Read the full story Posted: Feb 01,2017

Graphene 3D Lab introduces flexible conductive TPU filament

Graphene 3D Lab, a leader in the development, manufacturing and marketing of proprietary composites and coatings based on graphene and other advanced materials, recently announced the release of a new product. The Company will now offer a filament for 3D printing that is both highly electrically conductive and flexible.

G3L reports that the enhanced properties of this product make it ideal for applications involving flexible sensors, electromagnetic/radiofrequency shielding, flexible conductive traces and electrodes to be used in wearable electronics. This new material will be available for purchase in 1.75mm diameter 100 gram spools at the Company's on-line store, www.blackmagic3D.com, under the trade name of "Conductive Flexible TPU Filament".

Read the full story Posted: Oct 11,2016

GNext's graphene-based inks to soon enable recyclable EMI shielding sheets

Last week the Graphene-Info team visited the MWC - the world's largest mobile technologies conference held in Barcelona, which this year included a graphene pavilion, organized by the ICFO and the Graphene Flagship, Europe's $1 billion research project initiative.

One of the companies showcased in the pavilion was the Italy-based GNext, that demonstrated its graphene-based ink, used for rapid fabrication of electronic devices. GNext's ink can be printed using many common techniques on a wide range of substrates, including biopolymers such as PLA, and achieving a volume resistivity below 4 ohm/sq/mil.

Read the full story Posted: Mar 02,2016

Graphene impressions from the Mobile World Summit

Last week Barcelona hosted the Mobile World Congress trade show, and it was a very large and impressive conference - with over 100,000 visitors and thousands of exhibiting companies. This year the MWC included a graphene pavilion, organized by the ICFO and the Graphene Flagship, Europe's $1 billion research project initiative.

The Graphene Pavilion was very impressive, with several companies showcasing real graphene products and prototype devices, and also several research groups from leading Universities. The Pavilion consisted of 11 companies and 9 research centers - and you could see graphene materials, graphene supercapacitors (From Zap&Go, soon to hit the market), large graphene EMI shielding films (from GNext), graphene sensors and graphene-based RFID tags and antennas. In the photo below you can see an air quality prototype sensor made from graphene developed by Libre SRL (PiAndBi).

Read the full story Posted: Feb 29,2016

Haydale enters into a joint development and commercialization agreement with Scott Bader

Haydale announced that its composites division Haydale Composite Solutions (HCS) has entered into a joint development and commercialisation agreement with Scott Bader Company, a global supplier of liquid resins, gel coats and adhesives.

Under the agreement, HCS will functionalize Graphene Nano Platelets utilising its proprietary HDPlas® process and add them to Scott Bader’s Crestapol resin to create a highly loaded masterbatch. This masterbatch will then be diluted down by Scott Bader and HCS into a range of concentrations from 1% to 8% and cast into resin plaques which will then be tested to quantify any improvements in mechanical, physical, electrical and thermal performance.

Read the full story Posted: Oct 03,2015

Angstron Materials develops thermal foils for smartphones and electronic devices

Ohio-based Angstron Materials has developed a group of cost-effective thermal foil products that can be customized for handheld devices and other products. The company says that its foil sheets have been qualified for use by a major mobile electronics company. Such thermal foils can be used for the technology beneath devices' screens that conducts heat away from internal electronic components and batteries to help maintain optimal performance.

Angstron’s thermal foils are available in a variety of grades. The company states that its foils are thinner than other products on the market and so give manufacturers greater design flexibility than competing methods. Angstron’s foil sheets also can be sourced with equivalent or greater thermal conductivity.

Read the full story Posted: Mar 30,2015

Perpetuus Carbon Group teams up with G24 Power to produce advanced graphene-enabled components

The UK based Perpetuus Carbon, producer and global supplier of high quality functionalized graphene, signed a preliminary agreement to achieve full commercial partnership and manufacturing agreement with G24 Power, a leading dye sensitized solar cell (DSSC) company from the UK.

Perpetuus is to provide functionalized graphene, in sheet or roll form, for G24’s production of a range of advanced graphene-enabled components. G24 reportedly has manufacturing capabilities of thousands of metres of components per month for use in areas like resistance heating, biosensor platforms, barrier packaging, composite physical reinforcements, water treatment, fuel cell membranes, thermal management and heat dissipation, EMI shielding, electrodes for batteries and supercapacitors and LI-AIR battery cathodes.

Read the full story Posted: Nov 20,2014

Graphene oxide reinforced Nanocomposite for Naval/Marine applications

Researchers from India's VIT University developed new a basic nanocomposite material for naval/marine application devices. This material is anti-corrosive and is a high-performance functional device, which the researchers say suits the requirements for applications for marine and naval conditions (humidity, temperature, etc).

The material is a graphene-oxide reinforced/conjugated polymer nanocomposite. A PEDO-block-PEG polymer was used as a host medium, with graphene-oxide as a modifier and PVDF as crosslinker. The researchers say this is a novel composite that exhibits high performance in structure, thermal, morphology and electrical properties.

Read the full story Posted: Aug 26,2014

Graphene oxide for electromagnetic shield application

Back in October, researchers from India's VIT University started to study a new composite material made from graphene oxide and PVC. The GO was found to enhance the PVC to make it useful for battery electrodes, membranes and coatings.

The researchers continued to study the material, and they now published an article regarding the electrical characterization of the PVC-GO material as function of temperature. They say that according to their findings, the new material be very useful for all sorts of EMI applications, including radiation shields for radar and communication towers.

Read the full story Posted: Feb 03,2014