The team of professor Gao Chao of the Department of Polymer Science and Technology of Zhejiang University has developed a high thermal conductivity ultra-flexible graphene assembly film. The thermal conductivity is close to 40% of the ideal single-layer graphene thermal conductivity. It can be repeatedly folded 6,000 times and bent 100,000 times. It is expected to be used in electronics. Component heat conduction, a new generation of flexible electronic devices and aerospace and other fields. This result was recently published in "Advanced Materials" magazine. Among existing macro-materials, high thermal conductivity and high flexibility are contradictory, and it is often difficult to have both. Although the appearance of graphene materials provides a theoretical possibility to solve this contradiction, no research team has achieved breakthroughs before. The super team creatively proposed a "big micro-fold" material preparation method. First, the large monolayers of graphene overlap each other. After high-temperature heat treatment, the oxygen-containing groups in the materials release gas and form micro-balloons in the interior of the material. The temperature was lowered and the film was pressed with a mechanical roller to allow the gas in the air bag to be discharged to form micro-wrinkles. Under external force, the microfolds on the graphene film are elastically deformed, and the greater the external force, the more pronounced the deformation. Experimental data show that the graphene film has a 2 to 3 times higher elongation at break than the conventional graphite film material. According to the researchers, the extensibility of graphene microfolds makes it resistant to repeated folding, knotting, twisting, bending, origami and other complex deformations, and is also more suitable for industrial scale production. The highly flexible graphene film also has excellent thermal and electrical conductivity. In fact, the thermal conductivity of the graphene film exceeds the thermal conductivity of macroscopic materials currently available on the market, with an average of 1900 W/m. According to the researchers, the core components of electronic components have their own stable operating temperature range. In general, the temperature is increased by 8°C to 10°C, and the life of electronic devices will be reduced by half. In the experiment, the researchers replaced this graphene film with a commercial graphite film on a mobile phone thermal film and found that the temperature at the CPU of the mobile phone can be controlled below 33°C, which is 6°C lower than that of the commercial graphite film.
1. Construction : 304 stainless steel + mirror finishing, Brass + chrome plating.
2.Advantage : super-thin,water saving.
3.Rubber Nozzles for easy cleaning .
4.Install : wall mounted or ceiling.
5.1/2 connector
Air power : more pleasure , more efficiency .
1) A pleasantly different shower experience .
2) More fun from less water.
3) A unique pleasurable shower experience
We believe that every drop counts , and we will help you to save water, energy and money. With innovative products and trendsetting technologies.
Shower Head,Multifunction Shower Head,Classic Shower Head,Slim Shower Head KaiPing HuiPu Shower Metalwork Industrial CO,LTD , https://www.hp-shower.com