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Laser-induced graphene gets intense, with help



Rice Rice scientists are engaged in laser graphene with a variety of materials to make strong compounds for different applications. Credit: Tour Group / Rice University

He has many interesting features, but the new power of the laser graphene (LIG) (LIG) is a new power, a favorable foam of the serious carbon.

The Rice University of James James and Christopher Arnusch's chemistry laboratories, professor at the Ben-Gurion University of the Negev in Israel, a blend of the LIG composite in the American Chemical Society magazine ACS Nano which contributed to packaging materials stronger.

By inputting LIG with plastic, rubber, cement, wax or other materials, the compound laboratories carried out a wide range of potential applications. These new combinations could be used in sustainable electronics, in therapy therapy, in water treatment, in anti-icing and printing, in the creation of antimicrobial surfaces and even by making random resistive access memory devices.

The laboratory made the LIG tour the first time in 201

4 when using commercial laser to burn the surface of a common plastic thin sheet, polyamide. The laser heat compounds the wing of the material into interconnected scenes. The process made one step greater than the content, and at a much lower cost than happened through traditional chemical galvanization.

Since then, Rice's laboratory and others have been investigated by LIG, even to release the plastic to do it with wood and food. Last year, Rice researchers created graphene foam to sculpt 3-D objects.

Laser-induced graphene, produced by means developed by the University of Rice, can be combined with other materials for mergers. The materials that arise as a result of electronic applications, anti-icing and heating. Credit: Tour Group / Rice University

"LIG is a great feature, but it's not mechanically strong," said Journey, who co-ordinated an overview of laser-lease graphene developments in Chemical Research Accounts last year. "You can double it and double it, but you can not turn it on it. It will rip it off. If you do a Scotch tape test, it is enough. But when you enter a composite structure, it's really going up. "

In order to make the compounds, researchers made a thin layer of second matter about LIG connected to pouring or heating polyimide. When the liquid was hardened, they pulled the polymides away from the back to reuse it, leaving behind the attached gravel flakes embedded.


A soft compound can be used for active electronics in flexible clothing, and Tour said, while making a more difficult superhydrophobic compound (avoiding water). When the voltage is applied, the 20-mic-thick layer of LIG kills bacteria on the surface, and makes excessive versions of the material suitable for antibacterial applications.

Electron scanning Combined microscope image of decoded graphene and polystyrene. Credit: Tour Group / Rice University

The LIG mirror connectivity is preferred as a compound of liquid additives. In the lab, they are heated fast and reliably when voltage was applied. This should give rise to the use of materials such as a coating or anti-icing coating, such as a flexible heat arrangement for treating injuries or demanded clothing.

"Bring it into it and now you translate the beautiful all aspects of the LIG into a very strong matter," said Journey.


Additional investigation:
Gas gives good properties laser lasers

Further information:
Duy Xuan Luong et al, Composite Graphene Laser-Induced Sea Surface Functional, ACS Nano (2019). DOI: 10.1021 / acsnano.8b09626

Ruquan Ye et al. Graphene Luaer-Induced, Chemical Research Accounts (2018). DOI: 10.1021 / acs.accounts.8b00084


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