Provided is a metal matrix nanocomposite comprising: (a) a metal or metal alloy as a matrix material; and (b) multiple graphene sheets that are dispersed in said matrix material, wherein said multiple graphene sheets are substantially aligned to be parallel to one another and are in an amount from 0.1% to 95% by volume based on the total nanocomposite volume; wherein the multiple graphene sheets contain single-layer or few-layer graphene sheets selected from pristine graphene, graphene oxide, reduced graphene oxide, graphene fluoride, graphene chloride, graphene bromide, graphene iodide, hydrogenated graphene, nitrogenated graphene, doped graphene, chemically functionalized graphene, or a combination thereof and wherein the chemically functionalized graphene is not graphene oxide. The metal matrix exhibits a combination of exceptional tensile strength, modulus, thermal conductivity, and/or electrical conductivity.

Provided in the present invention are a flexible electrochemical electrode, a subcutaneous continuous glucose monitoring sensor equipped with the electrochemical electrode, and a preparation method thereof. The electrode directly uses gold layers on both sides of a chemically plated film, respectively as a working electrode and a reference-counter electrode, so as to form an electrochemical two-electrode system. Petaloid platinum nanoparticles are electrodeposited on a surface of the configured working electrode as a catalytic layer; a carbon nanotube/Nafion mesh layer functions as an anti-interference layer, and is formed thereon with an enzyme biochemical sensitive layer by means of electrostatic adsorption, after crosslinking and curing in glutaraldehyde, polyurethane mass transfer is coated to limit a protection layer, so as to prepare a flexible continuous glucose monitoring sensor. The sensor does not require photolithography, screen printing or other technologies to construct an electrochemical electrode system. The present invention effectively simplifies the processing technology, can easily achieve large-scale production and reduce production costs; and meanwhile, the present invention has characteristics such as a wide linear range, low detection limit, powerful anti-interference capacity, high response sensitivity and long-term stability.

The amount of a processing solution used is reduced, and the quality of an electroless plated fiber material is improved. The present invention relates to a manufacturing method for an electroless plated fiber material A4. The manufacturing method includes a step S5 of electrostatically spraying a solution B containing a catalyst precursor in a state of being electrically charged to a positive potential onto a fiber material A2 while grounding the fiber material A2 and moistening the fiber material A2, and electrostatically spraying a solution C containing a reducing agent in a state of being electrically charged to a positive potential onto the fiber material A2, and a step S7 of electrostatically spraying each of a solution D containing metal ions and a solution E containing a reducing agent each in a state of being electrically charged to a positive potential onto the fiber material A3 such that the solution D containing metal ions and the solution E containing the reducing agent react with each other in the same electric field on the fiber material A3 while grounding the fiber material A3 to which a catalyst is given and moistening the fiber material A3. The present invention relates to the electroless plated fiber material A4 manufactured by the manufacturing method. The present invention relates to a manufacturing system of the electroless plated fiber material A4.

A method for manufacturing a printed wiring board includes forming an electroless plating layer on a solder resist layer such that the electroless plating layer has a film thickness in the range of 0.05 μm to 0.70 μm, forming plating resist such that the plating resist has openings exposing portions of the electroless plating layer, applying electrolytic plating such that metal posts are formed in the openings of the plating resist, removing the plating resist, and etching the electroless plating layer exposed from the metal posts. The solder resist layer is formed such that the solder resist layer has openings exposing portions of the outermost conductor layer, the electroless plating layer is formed on the portions of the outermost conductor layer, and the plating resist is formed such that the openings of the plating resist expose the portions of the electroless plating layer formed in the openings of the solder resist layer.

A method of making a composite material includes disposing a carbon-based particulate material, such as graphene or carbon nanotubes, in an activation solution and activating surfaces of the carbon-based particulate material using the activation solution. Once the surfaces of the carbon-based particulate material have been activated, a metallic coating is applied to the activated surfaces to form a composite material. The composite material is then recovered as a particulate material formed having carbon-based particulate material with a metallic coating that is suitable for fusing together for forming electrical conductors, such as with an additive manufacturing technique.

Compositions for electroless plating baths and their use are disclosed, and more particularly different solutions each usable to both makeup an original bath and to replenishment of the original bath.

Graphene has been used in nanocomposites as constituents/doping in plastics or epoxy providing dramatic enhancement of the mechanical properties but have not progressed past the laboratory level novelty. This invention can provide a graphene based composite structure with a density less that 1.9 g/cm.sup.3 for a fiber, yarn, rope or cable and a density less that 1.5 g/cm.sup.3 for a sheet both structure have tensile and shear strength greater than either Aluminum or Steel; thus providing a graphene material that is both much lighter and stronger.

A method of manufacturing a bright surface product comprises a step of performing electroless plating to form a first metal film on a base coat layer formed on a substrate, a step of performing electrolytic plating to form a second metal film thereon so that the bonding strength between each film of a multi-layered metal film comprising the first metal film and the second film is higher than the bonding strength between the base coat layer and the first metal layer, a step of integrally and discontinuously segmentalizing the multi-layered metal film with cracks to form an island-like metal film comprising a collection of fine multi-layered metal regions with island-like structures; and a step of forming a translucent top coat layer to cover the fine multi-layered metal regions of the island-like metal film and enter into the cracks to make contact with the base coat layer.

A touch input device and a method for manufacturing the same are disclosed. The touch input device includes: a first base including a metal compound; a first pattern groove formed over one surface of the first base; a first sense pattern formed over the first pattern groove and including a conductive material; a second base stacked over the first base, and configured to include a metal compound; a second pattern groove formed over one surface of the second base; a second sense pattern formed over the second pattern groove, including a conductive material, and spaced apart from the first sense pattern; and a line unit connecting the first sense pattern and the second sense pattern to an integrated-circuit.

An aluminum alloy substrate for magnetic disks, including an aluminum alloy containing Fe as an essential element; at least one of Mn or Ni as selective elements; and the balance including Al and unavoidable impurities, with the total amount of Fe, Mn, and Ni having a relationship of 0.10 to 7.00 mass %; in which the distribution of Si—K—O-based particles with a longest diameter of 1 μm or more adhering to the surface from the surrounding environment is equal to or less than one particle/6,000 mm.sup.2, and in which the distribution of Ti—B-based particles with a longest diameter of 1 μm or more present on the surface is equal to or less than one particle/6,000 mm.sup.2; and a magnetic disk using the aluminum alloy substrate.