Abstract: Disclosed is a graphene polymer composite material, including a matrix resin, a filler and a plurality of nano-scaled graphene sheets. Each nano-scaled graphene sheet has a surface-modified layer formed of a surface modifying agent, which provides hydrophilic and hydrophobic functional groups used to form chemical bonds with the matrix resin and the filler, thereby greatly improving strength of junction cohesion. The filler helps the graphene sheets to contact each other so as so to increase overall electrical conductivity and thermal conductivity. Since the graphene sheets are uniformly dispersed in the matrix resin, the composite material of the present invention possesses excellent mechanical property, anti-oxidation, acid-base resistance, high electrical conductivity and thermal conductivity. Therefore, the composite material is suitable for the industries in need of high performance material.

Abstract: A light-emitting device includes a single-piece heat dissipation element, a circuit board and an electroinsulating casing. The single-piece heat dissipation element includes a carrier portion and a fin portion. The circuit board is configured on the carrier portion. The electroinsulating casing encapsulates the carrier portion and the fin portion.

Abstract: Disclosed is a graphene printed circuit pattern structure including a substrate excellent in electrical insulation and a graphene printed circuit layer provided on the substrate. The graphene printed circuit layer is electrically conductive and has a circuit pattern like an electrical circuit on the circuit board. The graphene printed circuit layer includes surface-modified nanographene platelets, a carrier resin and a filler. The ratio of the particle size of the filler to the thickness of the surface-modified nanographene platelet is 2-1000, and the surface-modified nanographene platelets are dispersed in the carrier resin. The filler is uniformly placed among the surface-modified nanographene platelets so as to enhance effective contact for the surface-modified nanographene platelets. The graphene printed circuit pattern structure provides excellent electrical properties and heat dissipation to achieve protection by preventing electrical elements from overheat.

Abstract: Disclosed is a graphene polymer composite material, including a matrix resin, a filler and a plurality of nano-scaled graphene sheets. Each nano-scaled graphene sheet has a surface-modified layer formed of a surface modifying agent, which provides hydrophilic and hydrophobic functional groups used to form chemical bonds with the matrix resin and the filler, thereby greatly improving strength of junction cohesion. The filler helps the graphene sheets to contact each other so as so to increase overall electrical conductivity and thermal conductivity. Since the graphene sheets are uniformly dispersed in the matrix resin, the composite material of the present invention possesses excellent mechanical property, anti-oxidation, acid-base resistance, high electrical conductivity and thermal conductivity. Therefore, the composite material is suitable for the industries in need of high performance material.

Abstract: An electrochemical separation membrane and the manufacturing method thereof are disclosed. The method includes: a polymer solution preparing step to mix a polymer material, solvent and ceramic precursors thoroughly to form a polymer solution, wherein the polymer material and the ceramic precursors are dissolved uniformly in the solvent; a coating step to coat the polymer solution on a porous base material; a hydrolysis step to cause the porous base material coated with the polymer solution to contact an aqueous solution to hydrolyze the ceramic precursor into ceramic particles; and a drying step to remove the water and the solvent from the porous base material and in order to form the electrochemical separation membrane. The electrochemical separation membrane made of this method have better ion conductivity, interface stability and thermal stability based on the ceramic particles.

Abstract: Disclosed is a graphene dissipation structure including a substrate and a graphene dissipation layer. The substrate has at least two surfaces. One of the surfaces contacts at least one heat source, and another one is not in contact with the heat source and provided with the graphene dissipation layer, which includes surface-modified graphene nanometer sheets, a carrier resin and a filler. The surface-modified graphene nanometer sheets are well dispersed in the carrier resin, and enhanced to contact each other through the filler to form a thermal conductive network. The ratio of the particle size of the filler and the thickness of the graphene nanometer sheets is about 2 to 100. Therefore, the heat absorbed by the substrate from the heat source is transferred to the graphene dissipation layer, and further dissipated to the outside through thermal conduction or radiation, thereby achieving the function of heat dissipation.

Abstract: Disclosed is a graphene masterbatch including a base resin, electrically conductive carbon black, graphene nanoplatelets with modified surface and a dispersant. The modified surface of graphene nanoplatelet is formed by a modifying agent containing a coupling compound so as to possess hydrophobic and hydrophilic functional groups, which help graphene nanoplatelets form chemical bonding with carbon black and the base resin. Since the modified surface makes graphene nanoplatelets evenly dispersed in the base resin, the graphene masterbatch of the present invention is suitably melt blended with a polymer material to form a composite material such that graphene nanoplatelets are evenly dispersed in the polymer material, thereby enhancing junction strength, increasing mechanical properties, and improving anti-oxidation, acid/base resistance, and thermal conductivity.

Abstract: A graphene composite coating layer for being coated on the surface of the target object comprises a curable mixed resin more than 97 wt % and a plurality of surface modified nano graphene sheets. The curable mixed resin comprises a curable resin and a curing agent. The curable resin is 10-50 wt % of the curable mixed resin, and the curing agent is 0˜10 wt % of the curable mixed resin. The surface modified graphene sheets with less than 3 wt % of the graphene composite coating layer are evenly spread in the curable mixed resin. The surface of the surface modified nano graphene sheet has some specific functional groups to form effective bonding with the curable mixed resin, thereby improving the compatibility of the surface modified nano graphene sheets and the curable mixed resin, increasing the junction strength, and enhancing the functions like anti-oxidation, acid/base resistance and mechanical strength.

Abstract: Disclosed is a graphene composite fiber and a method for manufacturing the same. The graphene composite fiber includes a polymer material and graphene sheets which are 1˜10% by weight of the graphene composite fiber, each having a modified layer with first organic functional groups and second organic functional groups for forming chemical bonds with the surface of the graphene sheet and the polymer material, respectively. The polymer material is a thermoplastic polymer for enclosing the graphene sheets. The method includes steps of preparing graphene sheets, modifying the surfaces of the graphene sheets, adding melted polymer material, blending, forming composite raw particles through the granulator, and finally spinning to form the graphene composite fibers. The graphene composite fibers of the present invention are manufactured by simple processes and possess excellent mechanical strength, thermal conductivity and electrical conductivity, thereby replacing commonly used fibers.

Abstract: An image processing method is provided. The method is for calculating a first weighted sum of absolute difference (WSAD) of a first search window and a corresponding first target window, and a second WSAD of a second search window and a corresponding second target window. The first and second search windows have a common matching window, and the first and second target windows have a common target block. The method includes: a) calculating a plurality of absolute differences of the common matching window and the common target block; b) determining a first weight coefficient group and a second weight coefficient group; and c) summing up products of multiplying the absolute differences by the first weight coefficient group to generate the first WSAD, and summing up products of multiplying the absolute differences by the second weight coefficient group to generate the second WSAD.

Abstract: The present invention relates to a nano-graphite plate structure with N graphene layers stacked together, where N is 30 to 300. The nanometer nano-graphite structure has a tap density of 0.1 g/cm3 to 0.01 cm3, a thickness of 10 nm to 100 nm, and a lateral dimension of 1 ?m to 100 ?m. The ratio of the lateral dimension to the thickness is between 10 and 10,000. The oxygen content is less than 3 wt %, and the carbon content is larger than 95 wt %. The nano-graphite plate structure has both the excellent features of the graphene and the original advantages of easy processability of the natural graphite so as to be broadly used in various application fields.

Abstract: A method for manufacturing nano-graphene sheets, includes: intercalating and oxidizing a graphite material to form a graphite oxide by mixing the graphite material with an intercalation agent and oxidant; contacting the graphite oxide with a heat source to thermally flake the graphite oxide to nano-graphite sheets; suspending the nano-graphite sheets in a liquid medium and applying a mechanical shear force larger than 5,000 psi to mechanically flake the nano-graphite sheets for reducing the lateral size and thickness to form a nano-graphene suspension solution; separating the nano-graphene sheets from the nano-graphene suspension solution and drying the nano-graphene sheets; and finally reducing and heat treating the nano-graphene sheets to lower the oxygen content to less than 3 wt % and decrease the crystal defects.

Abstract: A graphene-containing electrochemical device includes cathode/anode current collectors, cathode/anode active layers and a separator. The cathode/anode active layers are formed on the cathode/anode current collectors, and include a metal foil substrate and a graphene conductive layer. The graphene conductive layer includes several first graphene sheets and the polymer binder used to bind the first graphene sheets. The cathode/anode active layers include several second graphene sheets and cathode/anode active particles. The second graphene sheets and the cathode/anode active particles are bound by the polymer binder and further adhered to the graphene conductive layer. The second graphene sheets are blended among the cathode/anode active particles.

Abstract: Disclosed are a hollow graphene nanoparticle and a method for manufacturing the same. The hollow graphene nanoparticle is made of graphene sheets stacked together, and has a particle size of 10˜500 nm and a specific surface area greater than 500 m2/g. The method includes the steps of forming graphene, etching and heat treatment. First, a reducing agent is injected into an oven filled with protective gas, a carbon-containing gas compound or a second gas compound decomposing to generate carbon at higher temperature is added, a processing temperature is heated up to perform a redox reaction so as to form graphene nanoparticles containing side products, the graphene nanoparticles is then immersed in the acidic etching solution to remove the side products and obtain the hollow graphene nanoparticles.

Abstract: A current collector structure includes a metal foil substrate and a graphene conductive layer provided on at least one surface of the metal foil substrate. The graphene conductive layer includes a plurality of graphene sheets and a polymer binder used to bind the graphene sheets together and to adhere the graphene sheets onto the metal foil substrate. The conductive layer has a thickness of 0.1 ?m to 5 ?m and a resistance less than 1 ?-cm. The polymer binder increases the adhesion force, such that the integrated conductive network is thus formed. Since the polymer binder is well compatible with the binder as the active material contained in the electrochemical element. The active material of the electrochemical element is thus tightly bound with the graphene conductive layer so as to minimize the contact resistance and greatly improve the performance of the electrochemical element.

Abstract: The present invention discloses a graphene fiber and a method of manufacturing the same. The graphene fiber is manufactured by oxidizing graphite, dispersing, spinning, drying and heat treatment, and has a diameter less than 100 ?m, a ratio of length to diameter greater than 10, and a ratio of carbon to oxygen greater than 5. The graphene fiber is formed of a plurality of graphene sheets, which envelop an axis and are coaxially stacked one by one from the axis. The thickness of the graphene sheet is less than 3 nm, and chemical bonds are formed to tightly bond the graphene sheets to exhibit excellent mechanical and thermally/electrically conductive properties. The method of the present invention is implemented by simple steps so as to greatly reduce poisonous chemicals possibly generated in the manufacturing environment, thereby improving the safety of manufacturing and reducing the whole processing time and cost.

Abstract: A modified lubricant includes lubricant grease and nano-graphite plates dispersed thoroughly in the lubricant grease. The content of the nano-graphite plates is 0.0001 wt % to 10 wt %. Each nano-graphite plate has a length or a width between 1 and 100 ?m, a thickness within 10 nm and 100 nm, and N graphene layers stacked together and a surface modifying layer disposed on the top or bottom of the nano-graphite plates, wherein N is 30 to 300. The surface modifying layer has a surface modifying agent which includes at least two functional groups located at two ends of the surface modifying agent, one of the two functional groups is chemically bonded with certain organic functional group remaining on the surface of the nano-graphite plate, and the other of the two functional groups forms the functional surface of the nano-graphite plate.

Abstract: A graphene ink includes a dispersion solution with a surface tension between 35 and 55 mJ/m2, a polymer binder dissolved in the dispersion solution to form a colloidal solution, and a plurality of graphene sheets dispersed in the colloidal solution with a suspension concentration of 0.1˜5 wt %. The graphene ink has a viscosity less than 100 cp and a surface potential greater than 30 mV or less than ?30 mV. The graphene ink is first prepared and then processed by the steps of masking, spraying, solidifying and removing so as to form a graphene pattern by patterning the graphene ink on an electrical insulation substrate.

Abstract: A uniform reflective light-guide for accompanying an edge light source to form a backlight module for an LCD display includes a light-guiding layer and a reflective layer. The light-guiding layer further defines a light-introducing surface and a light-exiting surface. The light-introducing surface is to allow lights emitted from the edge light source to enter the light-guiding layer. The light-exiting surface perpendicular to the light-introducing surface is to allow at least a portion of the lights to leave the light-guiding layer. The reflective layer is to reflect the incident lights back to the light-guiding layer. The reflective layer and the light-guiding layer are manufactured integrally into a unique piece by a co-extrusion process so as to avoid possible existence of an air spacing in between. A reflective surface is defined to interface the reflective layer and the light-guiding layer, and a three-dimensional micro-structure is constructed on the reflective surface.

Abstract: A modified lubricant includes lubricant grease and nano-graphite plates dispersed thoroughly in the lubricant grease. The content of the nano-graphite plates is 0.0001 wt % to 10 wt %. Each nano-graphite plate has a length or a width between 1 and 100 ?m, a thickness within 10 nm and 100 nm, and N graphene layers stacked together and a surface modifying layer disposed on the top or bottom of the nano-graphite plates, wherein N is 30 to 300. The surface modifying layer has a surface modifying agent which includes at least two functional groups located at two ends of the surface modifying agent, one of the two functional groups is chemically bonded with certain organic functional group remaining on the surface of the nano-graphite plate, and the other of the two functional groups forms the functional surface of the nano-graphite plate.