Graphene thermal conductivity - introduction and latest news - Page 14
IIT and FADEL unveil graphene-enhanced shoes
Graphene Flagship partners Istituto Italiano di Tecnologia, Italy, in collaboration with FADEL, a leading Italian shoe company, have developed graphene-enhanced shoes. The new GET technology, patented by FADEL, reportedly gives the footwear better thermoregulation and freshness.
In this innovative shoe, when flakes consisting of several graphene layers are added to polyurethane, (the material of which the soles of FADEL shoes are made), laboratory tests show an augmented heat dispersion, a greater resistivity to water and enhanced antibacterial properties. Combining these effects with a ventilation system developed for this particular type of shoe yielded a better user experience. This prototype shoe was presented at the International Footwear Exhibition in Milan.
Gaming company launches graphene-enhanced SSD
Team Group, memory solutions and accessory provider, has announced the addition of new products to their existing T-FORCE gaming line of products. Among the new products is the T-FORCE CARDEA ZERO M.2 PCI-E solid-state drive, featuring graphene copper foil cooling on the SSD module allowing the SSD to maximize cooling benefits from both natural passive cooling and directed air cooling via fans to deliver excellent heat dissipation.
According to the company, the T-FORCE CARDEA ZERO M.2 PCI-E SSD is the world’s first super slim SSD on the market built specifically for gaming laptops and high-performance tablet PCs. Utilizing graphene provided by Nitronix and designing combinations of different proportions of graphene and copper foil, the patented graphene copper foil heat spreader was reportedly achieved through stringent multiple verification. It offers excellent thermal cooling effect even in a closed space.
China-based Tunghsu Optoelectronics unveils new graphene LEDs
The China-based Tunghsu Optoelectronic Technology has announced a new series of graphene LED ‘super lights’ at the 2017 International Graphene Innovation Conference. The new lights reportedly use graphene for heat dissipation and conduction.
The new LEDs' volume is said to be 75% lower than traditional LED lights and they are 30% lighter. Power-saving capacity is 20-30% better and they provide high-performance luminescence and light distribution. The lights also come with a smart connection function, according to the company. Users can integrate information devices, transmit Wi-Fi hotspots, gather environmental information, monitor road security and act as emergency alarms.
Graphene-enhanced fluid improves solar collectors' efficiency
Researchers at the University of Lisbon's Centro de QuÃmica Estrutural have discovered that the addition of graphene to the working fluid of solar collectors helps to regain some of its lost efficiency. Solar thermal collectors are seen as a simple and inexpensive way to make use of solar energy. Pure water is an efficient heat-transfer fluid, but it must be mixed with antifreeze to prevent damage to pipes during freezing conditions, and this lowers its performance.
The properties of an ideal heat-transfer fluid in a solar collector include a high thermal capacity and a freezing point outside of the temperature range likely to be encountered. Unfortunately, in the case of water, satisfying the latter requirement means compromising on the former, as mixing water with antifreeze makes it a less effective carrier of heat.
Graphene-ceramic composite with impressive properties may be useful for aerospace, sensors and more
A collaboration work by Purdue, the Chinese Lanzhou University and Harbin Institute of Technology, and the U.S. Air Force Research Laboratory has yielded a lightweight, flame-resistant and super-elastic composite shown to combine high strength with electrical conductivity and thermal insulation, suggesting potential applications from buildings to aerospace.
The composite material is made of interconnected cells of graphene sandwiched between ceramic layers. The graphene scaffold, referred to as an aerogel, is chemically bonded with ceramic layers using a process called atomic layer deposition. The team explained that graphene would ordinarily degrade when exposed to high temperature, but the ceramic imparts high heat tolerance and flame-resistance, properties that might be useful as a heat shield for aircraft. The light weight, high-strength and shock-absorbing properties could make the composite a good substrate material for flexible electronic devices. Because it has high electrical conductivity and yet is an excellent thermal insulator, it might be used as a flame-retardant, thermally insulating coating, as well as sensors and devices that convert heat into electricity, said associate professor in the School of Industrial Engineering at Purdue University.
Graphene Flagship research teams prepare to test graphene's potential for aerospace applications
The Graphene Flagship has announced preparations for two new experiments in collaboration with the European Space Agency (ESA), to test the viability of graphene for space applications. Both experiments will launch between 6-17th November 2017, testing graphene in zero-gravity conditions to determine its potential in space applications.
One of the two experiments (named GrapheneX) will be fully student-led, by a team of Graphene Flagship graduate students from Delft Technical University in the Netherlands. The team will use microgravity conditions in the ZARM Drop Tower (Bremen, Germany) to test graphene for light sails. By shining laser light on suspended graphene-membranes from Flagship partner Graphenea, the experiment will test how much thrust can be generated, which could lead to a new way of propelling satellites in space using light from lasers or the sun.
Chinese company develops clothes made of unique graphene fibers
A Chinese company called Shanghai Kyorene New Material Technology has reportedly developed a graphene fiber, that has been used to produce clothes, sports wear and underwear products. One company that states it uses these fibers in actual commercial products is Armor Guys, a U.S-based glove maker.
The technology is said to make graphene completely integrated with high polymer materials under room temperature, and adds special function to ordinary textile products like antibacterial, ultraviolet-proof, anti-static and heat preservation effects.
Will graphene help with NASA's mission to get close to the sun?
NASA is getting set to announce its first mission to fly directly into the sun’s atmosphere during an event on Wednesday, May 31, 2017. The mission, Solar Probe Plus, is scheduled to launch in the summer of 2018.
Placed in orbit within four million miles of the sun’s surface, facing heat and radiation unlike any spacecraft in history, the vessel will explore the sun’s outer atmosphere and make observations that may answer questions that have long since plagued researchers.
China-based company completes biomass graphene production line
The China-based Shandong Longju New Materials Technology announced that it has completed the installation and commissioning of a pilot biomass graphene production line and has put it into operation.
According to the reports, the facility uses corncob waste to make few-layer biomass graphene (citing Ningbo Institute of Materials Technology of the Chinese Academy of Sciences' test results). The production line’s annual capacity is said to be five tons and is expected to increase to 300 tons.
G3 and Lanka Graphite enter agreement to develop graphene-enhanced products
Global Graphene Group (G3), a holding company for subsidiaries like Angstron Materials, has signed Heads of Agreement with Lanka Graphite, a graphite exploration company. The joint venture entity (LGR 50%, G3 50%) will develop a range of commercial graphene projects.
G3 is reportedly scaling a broad range of commercial platforms of graphene applications in several , areas like energy storage, coatings, and thermal management. Lanka Graphite will supply vein graphite product into the joint venture in addition to assisting with sourcing investment, marketing and administration. G3 proposes to supply its experience in developing IP and research grants, commercialization planning and manufacturing infrastructure.
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