The New Complex Contains Billions Of Dollars And Rich Ore.

< p > US < a href= "http://www.91se91.com/news/index_c.asp" > nonwovens Industrial Association < /a > (INDA) recently held at the Fourth International Conference on graphene, held in Toulouse, France, pointed out that graphene composite material is a new material with great significance for future development. The global industrial output value in the next 5 years will be estimated to exceed 100 billion dollars in the next 5 years, and the output value of graphene composite material in the industrial application will reach US $10 billion, thus becoming the most potential high-end industrial composite functional composite material.

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< p > < strong > CPNC reinforced material can be automatically repaired < /strong > /p >

< p > the technician has embedded a biodegradable self-healing component in < a href= "http://www.91se91.com/news/index_c.asp" > CPNC < /a >, so that it can carry out automatic repair or fatigue phenomenon during the process of using external stimulus marks.

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< p > Holland Colbond BV launched a graphene nanocomposite reinforced material CPNC produced by stripping graphite or expanded graphite (EG) sheet and nano polymer in January 1, 2014.

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< p > according to the published technical information, Colbond BV graphene composite Drzal group uses intercalation compounds to strip graphite, and then natural graphite flakes are embedded into expanded graphite (EG) to make nano graphene sheets (NGP). Then, graphite nanosheets are integrated into the base polymer to prepare graphene nanocomposite CPNC by non-woven electrospinning technology.

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P Drzal group leader Louis Daigneault pointed out that in the product recommendation meeting, technicians also embedded a biodegradable self-healing component in graphene nanocomposites (CPNC), enabling them to carry out automatic repair or fatigue in the process of using external stimulation marks, and at the same time, it will not cause any environmental pollution.

This "magic" feature allows CPNC materials to be used for structural maintenance of automobiles, aircraft, fuel cells, films and medical devices.

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< p > "according to the experimental data and design guidelines collected during the development of graphene polymer nanocomposites CPNC, the versatile nature of CPNC has led to an important stage in the life cycle of graphene composite products." Louis Daigneault said, "CPNC reinforced materials not only have better mechanical properties than single wall nanotube (SWNT) and multi wall nanotube (MWNT) epoxy nanocomposites, but also have greater specific surface area and mechanical effect, which also make the product's fatigue strength better."

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< p > < strong > Eito to achieve high pparency of all infrared rays < /strong > /p >

< p > the energy conversion rate of solar cell thin films made of single graphene is only 2.9%, while the Eito conductive film added with TFSA additive can help solar cell energy conversion rate exceed 8.6%.

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< p > Japan Fuji electric Holding Co., Ltd. launched a pparent conductive film Eito for graphene solar cells in March this year.

The biggest characteristic of Eito pparent conductive film is the high pparency of all infra-red rays, including COSCO infrared.

Although infrared occupies a considerable part of the solar radiation energy, most of the existing solar cell films can not use infrared as an energy source effectively. This is because, in addition to the effective photoelectric conversion itself is not easy to achieve, so far, the ITO and FTO used for pparent electrodes are actually low pmittance to the infrared, and the unique properties of the Eito conductive film can complete the conversion efficiency of the existing solar cells.

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< p > at the same time, the TFSA additives and glass fibers added to the Eito conductive film can be used to orientate the graphene fibers to ensure that the original parts have stable and good oxidation resistance in the process of heating and molding.

The degree of expansion of Eito can reach 6 times the original thickness, and the density will only be 0.3g/cm3. In addition, the physical and mechanical properties of Eito conductive film can be controlled by changing the ratio of graphene and glass fiber, so as to meet the demand of solar cells.

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< p > Asakura Megumi, technical consultant of Fuji electric holding company, pointed out that the energy conversion rate of solar cell thin films made of single graphene before is only 2.9%. The Eito conductive film added with TFSA additives can help solar energy conversion rate exceed 8.6%. This is a new world record.

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In addition to P, Asakura Megumi also emphasized that graphene composites are different from traditional metals. They can not only bend like metal materials but also keep pparent state at the same time, which is enough to make them an important part of solar cells.

The launch of Eito is expected to extend the graphene composite membrane to the external walls of buildings and other applications, making it possible for solar energy to be used for lighting, heating and other daily uses.

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< p > < strong > < a href= > http://www.91se91.com/news/index_c.asp > Delphi < /a > reduce the film thickness by one order of magnitude < /strong > < /p >

The thickness of < p > Delphi film is less than 2 nm. Macromolecules can not pass through it, while small molecules can. The breakthrough of this research is to reduce the thickness of the film by an order of magnitude, which is a major breakthrough in separation technology.

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P Alcoa also introduced graphene filter material Delphi in early 2014.

The film has a high osmotic selectivity - hydrogen and helium can easily pass through such thin films, while other gases, such as carbon dioxide, oxygen, nitrogen, carbon monoxide and methane, are much slower.

The researchers used sulfuric acid or nitric acid to oxidize graphite fragments and separate them into a mixture of graphene inhomogeneously mixed with water.

After adding water, the uniform graphene oxide suspension was obtained by means of acoustic degradation and centrifugation.

Finally, through simple filtration, the suspension is coated on alumina substrate, and a new type of filtration membrane is obtained.

"The kinetic diameter of hydrogen is 0.289 nm, and the kinetic diameter of carbon dioxide is 0.33 nm. Although the difference between the two is only 0.44 nm, the difference is enough to produce different permeation effects," said Jackson, head of Alcoa. "The thickness of Delphi thin film is less than 2 nm, which is like an air sieve. Macromolecules can not pass through it, while small molecules can.

The breakthrough of this research is to reduce the thickness of the film by an order of magnitude, which is a major breakthrough in separation technology. "

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