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327results about How to "Excellent mechanical properties" patented technology

Transparent Inorganic Oxide Dispersion and Iorganic Oxide Particle-Containing Resin Composition, Composition for Sealing Light Emitting Element and Light Emitting element, Hard Coat Film and Optical Functional Film and Optical Component, and Method for Producing Inorganic Oxide Pariticle-Containing Resin

The present invention provides a transparent inorganic oxide dispersion which makes it possible to improve the refractive index and mechanical characteristics and to maintain transparency by modifying the surface of inorganic oxide particles with a surface modifier having one or more reactive functional groups; and an inorganic oxide particle-containing resin composition in which the transparent inorganic oxide dispersion and a resin are compositely integrated by the polymerization reaction, a composition for sealing a light emitting element, a light emitting element, and a method for producing an inorganic oxide particle-containing resin composition; and a hard coat film which has high transparency and makes it possible to improve a refractive index and tenacity, an optical functional film, an optical lens and an optical component. The transparent inorganic oxide dispersion of the present invention comprises inorganic oxide particles which have a surface modified with a surface modifier having one or more reactive functional groups and have a disperse particle diameter of 1 nm or more and 20 nm or less, and a disperse medium, wherein the surface modifier is one or more kinds selected from the group consisting of a silane coupling agent, a modified silicone, and a surfactant.
Owner:SUMITOMO OSAKA CEMENT CO LTD

Low-roughness and low-square-resistance flexible transparent conductive composite thin film and preparation method therefor

The invention belongs to the technical field of photo-electronics, and more specifically relates to a low-roughness and low-square-resistance flexible transparent conductive composite thin film, wherein the thin film adopts a three-layer composite structure; the lowest bottom layer is provided with a transparent polymer thin film; the middle layer is provided with a conductive network formed by metal nanowires; the topmost layer is a provided with a transparent conductive layer which uniformly covers the transparent polymer thin film and the conductive network; the flexible transparent conductive composite thin film is less than 20-nanometer in average roughness, less than 30-ohm/square meter in square resistance, and greater than 80% of light transmittance within a visible light range; and the transparent conductive thin film can bear bending with radius of curvature of 2mm. The invention also discloses a preparation method for the flexible transparent conductive composite thin film. The flexible transparent conductive composite thin film provided by the invention has low roughness, high conductivity, high light transmittance, simple preparation method and low cost, and is particularly suitable for flexible display and illumination, a flexible solar battery and flexible touch equipment.
Owner:HUAZHONG UNIV OF SCI & TECH

Low-temperature SCR (Selective Catalytic Reduction) catalyst based on active coke loaded manganese-cerium composite oxide and preparation method of low-temperature SCR catalyst

The invention provides a low-temperature SCR (Selective Catalytic Reduction) catalyst based on an active coke loaded active component and a preparation method of the low-temperature SCR catalyst. The catalyst is suitable for SCR reaction of nitrogen oxides under the condition of low temperature. A Mn and Ce composite oxide is loaded on an active coke particle with a relatively high special surface area and mechanical strength, so that the SCR reaction temperature is reduced, the adsorption capability and mechanical wear resistance of the catalyst are improved, and the whole sulfate resistance and regeneration capability of the catalyst are improved. The preparation method provided by the invention is simple in step, artful in process design and convenient for industrial production. The catalyst provided by the invention takes the active coke particle as a carrier on which the Mn and Ce composite oxide is loaded. Oxides of modified elements can also be loaded on the carrier of the catalyst, wherein the modified elements are selected from one or more of the following elements: Fe, Zr, Si, Ti, V, Mo, W, Cr, Au, Ag, Pt, Pd, Rh and Co.
Owner:GUODIAN ENVIRONMENTAL PROTECTION RES INST CO LTD

Self-floating composite material bridge pressurized-water anti-collision device

The invention relates to a self-floating composite material bridge pressurized-water anti-collision device. The anti-collision device is characterized by comprising a shell part (12) and a water-spraying energy-consumption part (13), wherein the water-spraying energy-consumption part (13) is arranged by clinging to the bridge; the shell part (12) is arranged outside the water-spraying energy-consumption part (13); the shell part (12) consists of a composite material surface layer (1), a sandwich material layer (2) and a filling material body (3); the sandwich material layer (2) is clamped in the composite material surface layer (1) and forms a shell wall (14); the filling material body (3) is filled in space formed by the shell wall (14); the water-spraying energy-consumption part (13) consists of a canvas water bag (6) filled with water (10), a circle of transverse frameworks (8) which is arranged at a regular interval along the transverse direction of the canvas water bag (6) and longitudinal framework (9) which is arranged along the longitudinal direction of the water bag; the canvas water bag (6) is provided with draining holes (7) regularly; and the shell part (12) is also provided with a rail (11). The anti-collision device has the advantages of simple structure, convenient manufacture, installation and maintenance, low cost and environmental protection.
Owner:南京工大复合材料科技有限公司

FRP (fiber reinforced plastic) optical fiber intelligent composite rib embedded with steel strand

InactiveCN102146713AEnhance anti-corrosion and durabilityEnhanced resistance to electromagnetic field interferenceForce measurement by measuring optical property variationThermometers using physical/chemical changesGratingFiber Bragg grating
The invention discloses an FRP (fiber reinforced plastic) optical fiber intelligent composite rib embedded with a steel strand, which belongs to the technical field of safety monitoring and structural materials and is characterized in that the steel strand and the optical fiber or a fiber bragg grating are parallelly embedded in the FRP rib along the length direction of fiber resin and are organically integrated through a pultrusion process, wherein the steel strand is embedded in the middle of the FRP rib, the optical fiber or the fiber bragg grating is embedded at the outer side of an FRP covering; or the optical fiber or the fiber bragg grating is embedded in the middle of the FRP rib, and the steel strand is embedded at the outer side of the FRP covering. The FRP optical fiber intelligent composite rib has the effects and advantages that the optical fiber intelligent composite rib has high modulus, good durability and self-sensing property, and can be widely applied to projects of bridge stay cables and booms and the like as a novel material in civil engineering and a sensing element for long-time monitoring.
Owner:DALIAN UNIV OF TECH

Ultrasonic oval vibrating mechanism for assisting diamond cutter in ultra-precision cutting

The invention relates to an ultrasonic oval vibrating mechanism for assisting a diamond cutter in ultra-precision cutting. The ultrasonic oval vibrating mechanism is characterized by comprising a cutter handle, a vibrating unit and a cutter, wherein one end of the cutter handle has a step-shaped structure; the vertical surfaces and the horizontal surfaces of an upper layer step and a lower layer step are provided with grooves; the vibrating unit comprises a vibrating body consisting of a transverse vibrating rod and a longitudinal vibrating rod which are vertical to each other; the top surface of the joint of the transverse vibrating rod and the longitudinal vibrating rod is provided with a groove; the end part of the transverse vibrating rod is provided with a transverse end face; the other side of the transverse end face is provided with a transverse excitation source and a transverse cover plate in sequence; the end part of the longitudinal vibrating rod is provided with a longitudinal end face; the other side of the longitudinal end face is provided with a longitudinal excitation source and a longitudinal cover plate in sequence; the transverse end face is formed on the vertical surface of the upper layer step of the cutter handle; the transverse cover plate and the transverse excitation source are positioned in the groove of the upper layer step; the longitudinal end faceis formed on the horizontal surface of the lower layer step of the cutter handle; the longitudinal cover plate and the longitudinal excitation source are positioned in the groove of the lower layer step; and the cutter is arranged in the groove at the joint of the transverse vibrating rod and the longitudinal vibrating rod.
Owner:TSINGHUA UNIV

Bridge anti-collision device of composite material

The invention relates to a bridge anti-collision device of a composite material, which is characterized in that the bridge anti-collision device of the composite material is in a bar-shaped structure or an annular structure which is matched with the shape of a bridge, wherein the bar-shaped or annular structure is at least provided with an anti-collision unit (10) or at least comprises one anti-collision unit (10) and one connecting rod (12). The two adjacent anti-collision units (10) which are mutually connected are connected by a flange (4) and a bolt (5), and the connecting rods (12) are installed at both ends of one anti-collision unit (10) or are installed between the two anti-collision units (10) which are adjacent but not connected with each other so as to form the annular structure; each anti-collision unit (10) comprises a casing (11), a filling material (3) filled in the casing (11) and a canvas bag (7) which is installed at one side of the casing and is filled with a buffering material (6), the canvas bags (7) are connected with the casings (11) by pull ropes (8), anti-collision handrails (9) are also connected on the casings (11), and the casings (11) are also solid casings of the composite material or are in a structure comprising two layers of internal and external composite material surface layers (1) and a sandwich material (2). The invention has low cost, good anti-collision performance, greenness and environmental protection.
Owner:南京工大复合材料科技有限公司

Single-piston-rod damper

ActiveCN106641084ATo achieve the effect of anti-shock and vibration reductionLarge damping forceSpringsLiquid based dampersSnubberCylinder block
The invention discloses a single-piston-rod damper and belongs to the technical field of structural vibration control devices. The single-piston-rod damper comprises a cylinder which is divided into a working chamber and a compensation chamber, the working chamber and the compensation chamber are separated from each other through a floating piston which is sealed together with the cylinder, and the working chamber is filled with shear thickening fluid (STF); one end, with the tip being connected with a working piston, of the piston rod is arranged in the working chamber in the cylinder, and the other end of the piston rod is arranged outside the cylinder and connected with an upper connecting part; and an elastic part is arranged in the compensation chamber, one end of the elastic part is connected with the floating piston, and the other end of the elastic part is connected to a rubber piston arranged at the end of the cylinder. When the shearing rate is high and the instantaneous vibration velocity in the working chamber is high, shear thickening of the STF occurs to generate damping force, so that the anti-impact vibration-reduction effect of engineering structures is achieved; and when the shearing rate is low and the instantaneous vibration velocity in the working chamber is low, the elastic part in the compensation chamber elastically compensates for the initial rigidity of the damper, so that vibration reduction and energy dissipation of the engineering structures are achieved. The single-piston-rod damper is provided with the elastic compensation chamber to provide appropriate compensation rigidity, and the anti-impact vibration-reduction effect of the damper is achieved.
Owner:SHENYANG JIANZHU UNIVERSITY

High-end bearing steel material for machine tool and production process thereof

The invention relates to a high-end bearing steel material for a machine tool and a production process of the high-end bearing steel material, and belongs to the technical field of special steel smelting. The high-end bearing steel material for the machine tool and the production process of the high-end bearing steel material aim to solve the problem that the properties such as wear resistance and contact fatigue strength of an existing bearing steel material cannot meet the requirements of a high-end numerical control machine tool, and the production process comprises electric furnace treatment, LF refining and VD process, die casting, hot delivery/cover cooling, primary heating rolling cogging, slow cooling, secondary heating rolling and spheroidizing annealing. Ni, Mo and rare earth elements are added on the basis of existing bearing steel, the content of Al and Cu is strictly controlled, and a good mechanical property index is provided for steel materials, and the produced bearing steel material has high elasticity limit, tensile strength, contact fatigue strength and wear resistance, can effectively reduce the phenomena of material fatigue flaking, clamping and the like and is applicable to manufacturing a bearing ring and a rolling body and needle with the wide size range for the machine tool.
Owner:建龙北满特殊钢有限责任公司

Surface bioactive calcium-phosphate layer of carbon fiber reinforced polyetheretherketone composite material and preparation thereof

InactiveCN101698114AAchieve surface biomimetic mineralizationRaise the level of biologyCoatingsProsthesisFiberCarbon fibers
The invention relates to a surface bioactive calcium-phosphate layer of a carbon fiber reinforced polyetheretherketone composite material and preparation thereof. The three-dimensional braided carbon fiber reinforced polyetheretherketone composite material which is molded through hot-press is ground, polished and subjected to alkaline liquor treatment, complex activating treatment, plasma treatment or ion implantation pretreatment to ensure that the surface of the composite material has activity; and the sample subjected to the pretreatment is immerged in a simulated body fluid for biomimetic mineralization. The depth of the calcium-phosphate layer is 4 to 10 microns and the atomic ratio of the calcium to the phosphate of the calcium-phosphate layer is 1:1-1.5. The surface bioactive calcium-phosphate layer of a carbon fiber reinforced polyetheretherketone composite material and the preparation thereof have the following advantages that: the process is simple; and through the treatment by the method, the composite material has excellent mechanical properties (high shocking and bending strength and modulus near bones), and also has good surface bioactivity so that the composite material as a new bone implant has better therapeutic effect.
Owner:TIANJIN UNIV

Heat-resistant ti alloy material excellent in resistance to corrosion at high temperature and to oxidation

Disclosed is a heat-resistant Ti alloy material excellent in high-temperature corrosion resistance and oxidation resistance, which comprises a base made of a heat-resistant Ti alloy and a surface layer formed on the surface of the base. The surface layer has a multilayer structure including an inner layer and an outer layer. The inner layer has three coexistent phases consisting of a β phase, a γ phase and a Laves phase in the phase diagram of a Ti—Al—Cr based alloy, and the outer layer is made of an Al—Ti—Cr based alloy having an Al concentration of 50 atomic % or more. The heat-resistant Ti alloy material is produced by subjecting a substrate made of a heat-resistant Ti alloy to a Cr diffusion treatment at a temperature within a β single-phase region in the phase diagram of a Ti—Al—Cr based alloy, precipitating a γ phase and a Laves phase from the β phase during a cooling process to form the inner layer with three coexistent phases consisting of the β, γ and Laves phases, and then subjecting the obtained product to an Al diffusion treatment to form the outer layer. The heat-resistant Ti alloy material can prevent the diffusion of Al from the outer layer to the base and the diffusion of elements of the base to the outer layer while forming a protective Al2O3 film in a self-repairing manner, to provide excellent high-temperature corrosion resistance and oxidation resistance to the heat-resistant Ti alloy base.
Owner:NARITA TOSHIO

Flexible gas sensor based on three-dimensional net structured sensitive film and preparation method of flexible gas sensor

The invention discloses a flexible gas sensing device based on a three-dimensional net sensitive film and a preparation method of the flexible gas sensing device, and belongs to the fields of sensing electronics and flexible electronics. The sensing device comprises a flexible substrate layer, an interdigital electrode layer and a three-dimensional net structured sensitive film layer which are sequentially stacked according to the preparation order. The preparation method mainly comprises steps as follows: preparing a flexible interdigital electrode device, preparing a film material required by the sensing device, and preparing a three-dimensional net structured sensitive film device with a gas injection film forming technology. The flexible gas sensing device based on the three-dimensional net sensitive film and the preparation method of the flexible gas sensing device have the advantages as follows: by means of the extensibility of the flexible substrate on the three-dimensional net structured sensitive film, the response performance of the sensitive film on gas is further improved, meanwhile, the process is simple, the cost is low, and the prepared sensing device can be used in the field of gas detection.
Owner:TSINGHUA UNIV
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