Versarien updates on AECOM collaboration

Versarien, the advanced materials engineering group, has announced that it has signed a supply agreement to provide Versarien's new graphene enhanced polymer range to AECOM for a current infrastructure project.

This supply agreement follows the collaboration Versarien entered into with AECOM, a US headquartered and Fortune 500 company. This collaboration covered a project that AECOM and Versarien have been undertaking involving the incorporation of Versarien's graphene nano-platelets into large scale polymer structures used in civil infrastructure projects, with a view to increasing their structural strength.

Read the full story Posted: Dec 12,2018

Perpetuus concludes successful trials of graphene-enhanced tires - with an average increase of 40% in wear resistance

UK-based Perpetuus Advanced Materials announced the completion of a "real world" road testing program of car tires enhanced with surface-engineered graphene materials.

Perpetuus graphene-enhanced tires testing

Over the last 6 months, Perpetuus graphene enhanced tires were fitted to high mileage, commercial light vehicles, which primarily travel on the UK’s A and B roads. The tests compared the graphene-enhanced tires with regular tires and monitored the performance of both tires. Perpetuus says that the tests showed that the graphene-enhanced tires produced an average of 40% increase in wear resistance over the regular tires.

Read the full story Posted: Aug 22,2018

Graphene Flagship team creates photosensitive graphene-based "switches"

Partners of the European Project 'Graphene Flagship' at the University of Strasbourg and CNRS (France), along with an international team of collaborators, created new 'switches' that respond to light. The team combined light-sensitive molecules with layers of graphene and other 2D materials to create new devices that could be used in sensors, optoelectronics and flexible devices.

Graphene Flagship team creates photosensitive graphene-based ''switches'' image

The researchers designed a molecule that can reversibly undergo chemical transformations when illuminated with ultraviolet and visible light. This molecule (a photoswitchable spiropyran) can be then attached to the surface of materials like graphene or molybdenum disulfide, thus generating an atomically precise hybrid macroscopic superlattice. When illuminated, the whole supramolecular structure experiences a collective structural rearrangement, which could be directly visualized with a sub-nanometer resolution by scanning tunneling microscopy.

Read the full story Posted: Aug 16,2018

Carbon nanotubes help create reinforced graphene "rebar"

Rice University researchers have found that fracture-resistant “rebar graphene” is more than twice as tough as pristine graphene. While on the two-dimensional scale, graphene is stronger than steel, its extremely thin nature makes it subject to ripping and tearing. Rebar graphene is the nanoscale analog of rebar (reinforcement bars) in concrete, in which embedded steel bars enhance the material’s strength and durability. Rebar graphene, developed by the Rice lab of chemist James Tour in 2014, uses carbon nanotubes for reinforcement.

In a new study, Rice materials scientist Jun Lou, graduate student and lead author Emily Hacopian and collaborators, including Prof. James Tour, stress-tested rebar graphene and found that nanotube rebar diverted and bridged cracks that would otherwise propagate in unreinforced graphene.

Read the full story Posted: Aug 07,2018

IBS team uses camphor to measure the tensile strength of centimeter-scale monolayer graphene films

Researchers at the Institute for Basic Science (IBS) have measured the tensile strength of centimeter-scale monolayer graphene films, using camphor - a chemical that easily volatilizes at room temperature - as a temporary support layer. The mechanical properties of monolayer graphene pieces bigger than a few micrometers have never been tested, simply because moving such an ultrathin film to a standard testing apparatus has not been possible.

Camphor-assisted testing system image

In this study, camphor is used as a transient support, and what differentiates it from conventional methods is that it is sublimed away in air at room temperature naturally, or at higher temperatures for faster processing. Thanks to this method, ultrathin films with an area larger than 1 cm x 1 cm are transferred without damage, then the camphor layer disappears in the air without leaving traces. In this way, tensile measurements were made on centimeter-scale 300 nm-thick graphene oxide film specimens, almost ten times thinner than previously reported. It was also possible to work with a graphene oxide film that was only 35 nm thick, and suspend it over a 1 cm x 1 cm hole.

Read the full story Posted: Jul 27,2018

Haydale reports strong commercial progress in graphene-enhanced composites

Haydale, the global advanced materials group, has announced that strong commercial progress has been made with an unspecified global composite materials group to enhance mechanical properties for selected products in their range of materials, through a commercially funded contract.

Over the last 12 months, Haydale has completed a series of pre-production trials for this customer (who for commercial reasons cannot be named) to enhance these selected products' mechanical performance through the incorporation of graphene in a range of world-wide industrial applications. Haydale reports that to date, it has been paid approximately $150,000 USD by the Customer for these trials.

Read the full story Posted: Jun 20,2018

Spotlight: Seevix's dragline spidersilk promises elastic, strong and stable fibers

The graphene-enhanced composites market is on the rise with many applications popping up around the world. While graphene-enhanced composites are exciting and yield properties like a substantial mechanical strength and conductivity boost, other advanced materials are being developed worldwide to compete or complete graphene's attributes.

Seevix dragline spidersilk image

One such fascinating material is an artificial dragline spidersilk, developed by an Israel-based startup called Seevix Material Sciences. We contacted Dr. Shmulik Ittah, Co-Founder and CTO at Seevix Material Sciences, to give us a short review of the Company's promising material. Dragline spidersilk is known as an extremely strong fiber, that also manages to be highly elastic and stretchable. In fact, it can stretch up to 30% of its initial length. Spider silk is thus a unique phenomenon in the materials world, toting two such seemingly contradictory properties which usually do not co-reside in one material, whether natural or synthetic.

Read the full story Posted: May 18,2018

Directa Plus signs contract with existing client for graphene-enhanced accessories

Directa Plus, a producer and supplier of graphene-based products, recently announced that it has reentered into a 12-month exclusivity agreement and 9-month development agreement with an existing global luxury accessories customer, to produce graphene-enhanced accessories with increased mechanical properties.

'The value of the exclusivity and the development agreement, ahead of entering into an anticipated commercial contract, amounts to approximately €130,000,' the firm said.

Read the full story Posted: Apr 30,2018

First Graphene to work with SupremeSAT on graphene-enhanced components for miniature satellites

Advanced materials company First Graphene has announced that it has entered into a binding Memorandum of Understanding with SupremeSAT for the development of graphene-enhanced components for SupremeSAT's Miniature Satellite Assembly Project. The collaboration with FGR will aim to develop graphene-enhanced components, for both strength and weight reduction, and also heat and radiation shielding.

SupremeSAT is working on the Project with EnduroSAT of Bulgaria. Two leading universities in the USA will be joining this project shortly. The Project will test satellite interconnectivity and data exchange between satellites and a data relay within a constellation. Initially a duo of 1.5U Cube Satellites will be assembled at SupremeSAT's Satellite Assembling facility - Pallekele - Kandy, with hardware for the satellites, training and other variants of engineering support coming from EnduroSAT.

Read the full story Posted: Apr 18,2018

Graphematech develops a simple, scalable method for coating polymer powder and granular with a layer of Aros Graphene

Sweden-based Graphematech, a startup company that develops and sells novel graphene-based nanocomposite materials and services, has announced the development of a scalable method for coating polymer powder and granular with a layer of its Aros Graphene. The Company sees this is a major boost to the polymer composites industry.

Graphematech develops a simple and scalable method for coating polymer powder and granular with a layer of Aros Graphene image

This newly developed method is said to be very efficient for obtaining high quality dispersion of Aros Graphene additive inside a polymer matrix without the use of high shear forces in melt mixing. It enormously reduces production costs and minimizes property degradation for both the polymer matrix and the additive while maintaining high quality and homogeneous composite. The invented method can be also applied for coating polymer powder with different materials such as metals, ceramics, fibers, cellulose and more.

Read the full story Posted: Apr 10,2018