14results about How to "Special structure" patented technology

The invention belongs to the technical field of environmental protection and new energy, and discloses a cobalt-containing aerogel-loaded ruthenium monatomic catalyst as well as preparation and application thereof. The preparation method comprises the following steps: preparing cobalt-containing aerogel through a chemical precipitation method, preparing a ruthenium monatomic catalyst through a heat treatment method, uniformly grinding the cobalt-containing aerogel and the ruthenium monatomic catalyst, and carrying out heating treatment in an air atmosphere to obtain the cobalt-containing aerogel loaded ruthenium monatomic catalyst. The noble metal ruthenium in the obtained catalyst exists in a monatomic form, the content of the ruthenium metal is low, and the cobalt-containing aerogel has a special sheet structure. The material can expose a large number of catalytic active sites due to the special structure of single atoms and the larger surface area of aerogel. The obtained catalyst shows excellent catalytic activity and stability in an electro-catalysis nitrate reduction reaction.

The invention provides a portable weathering resistant steel rust layer protection clamp, and relates to the technical field of electric power auxiliary devices, the protection device comprises a clamp assembly, the clamp assembly comprises a side plate, a bottom plate, an L-shaped support and a top plate, the side plate is rotatably connected with the bottom plate, the top plate is integrally connected to the top of the side plate, and the L-shaped support is arranged on the side plate. One end of the support is integrally connected to the end, away from the side plate, of the top plate, a hollowed-out L-shaped area used for clamping a cross arm is formed among the side plate, the bottom plate, the top plate and the L-shaped support, and a protective layer is arranged on the inner wall of the area. According to the protection device, the cross arm is fixed in the L-shaped area of the clamp, the surface of the cross arm makes contact with the protection layer, the protection layer is made of high-molecular polyethylene with excellent wear resistance, and the problem that after an existing protection device is fixed to the cross arm of the weather-resistant steel tower, a rust layer is abraded is solved.

The invention discloses a LiF-SiO / C composite material as well as a preparation method and application thereof. Commercial SiO particles are selected, LiOH.H2O and sodium chloride are added, lithium-supplemented SiO is packaged in a honeycomb porous carbon matrix network through freeze drying, an obtained sample is calcined in protective gas, meanwhile, a SiO / C composite material is fluorinated through a chemical vapor phase method, and then the carbon-coated LiF passivation layer SiO composite material is obtained through water washing. The method is convenient and easy to operate and controllable in reaction condition, the initial effect of the obtained porous carbon coated uniform LiF passivation layer SiO composite material is improved through lithium supplement, the characteristic of large specific surface area of porous carbon is beneficial to full contact of an electrolyte and an active substance, volume expansion of the material in the charging and discharging process is effectively relieved through carbon coating and the uniform LiF passivation layer, and the performance of the material is improved. When the silicon-carbon composite material is used as a lithium ion battery negative electrode material, the electrochemical performance of the lithium ion battery negative electrode material is greatly improved.

The invention discloses a polymer capable of simultaneously releasing far infrared rays and negative ions and a preparation method thereof. Comprising the following components in parts by weight: 0.1-45% of micromolecular pure water color paste, 40-85% of epoxy resin emulsion, 0.1-3% of propylene glycol, 2-10% of an epoxy curing agent, 0.5-5% of an imidazole dispersing aid, 0.2-12% of rutile titanium dioxide powder, 2-10% of light rare earth powder, 2-21% of a coating interface agent and 0.5-10% of special mineral powder. The prepared polymer can release far infrared rays and negative ions at the same time, the attenuation of each year is not larger than 1.2% of the average generation amount of the last year, the amount of released negative ions is 3000-6000 / cm < 3 >, and when the polymer is applied to different places and fields, metabolism of a human body can be promoted, and human health is facilitated.

The present invention discloses a device for adhesively connecting a composite material circular tube and a closed-cell foam core material, comprising: a thickness gauge, which is axially movably arranged in the composite material circular tube, and one end of the thickness gauge is provided with a first through hole, and the other end is provided with an open accommodating cavity connected to the first through hole; wherein the closed-cell foam core material is arranged in the open accommodating cavity; an upper pressure head, one end of which is movably arranged in the open accommodating cavity and abuts against one end of the closed-cell foam core material, and the other end passes through the first through hole; a lower pressure head, which is engaged in the composite material circular tube and abuts against the other end of the thickness gauge; a one-way valve, which is arranged at the axis of the lower pressure head and is used to inject glue into the thickness gauge. The present invention also discloses a method for adhesively connecting a composite material circular tube and a closed-cell foam core material, and the thickness of the glue layer is made as uniform as possible by controlling the rotational withdrawal speed and the injection speed of the thickness gauge.

The invention relates to the technical field of hydrogen storage materials, in particular to a pyrochlore structure Bi2Ti2O7 doped magnesium hydride hydrogen storage material and a preparation method thereof. Comprising the following steps: firstly, adding bismuth nitrate pentahydrate into an acetone solution, and uniformly stirring; dropwise adding tetrabutyl titanate into the mixture, and continuously stirring until the tetrabutyl titanate is completely dissolved; performing ultrasonic treatment on the solution, performing hydrothermal reaction, washing, performing suction filtration to obtain sediment, and drying; then calcining for a period of time in an air atmosphere to obtain Bi2Ti2O7; and finally, grinding the MgH2 and 8 to 12 weight percent of Bi2Ti2O7 catalyst together in an inert atmosphere, so as to obtain the hydrogen storage material with the Bi2Ti2O7 doped with the magnesium hydride. The preparation process is simple, the Bi2Ti2O7 microspheres are synthesized by adopting a surfactant-free and template-free liquid phase method, the energy consumption is low, and the pollution is small; the hollow spherical catalyst can greatly enhance the ball milling effect, is beneficial to uniform distribution on an MgH2 matrix, and reduces hydrogen storage capacity recession; the Bi2Ti2O7 doped magnesium hydride hydrogen storage material synthesized by the method disclosed by the invention has the hydrogen desorption initial temperature of 187 DEG C and the hydrogen desorption amount of 6.8 wt%.

This invention discloses a 5-amino-1,4-naphthoquinone propyltriethoxysilane, its preparation method, and its applications. The product is prepared by a substitution reaction of 5-amino-1,4-naphthoquinone and chloropropyltriethoxysilane in the presence of an acid-binding agent. The product is an orange-brown liquid with diverse functions. When applied to silica-modified tires, compared to conventional silane coupling agents, besides the siloxy groups improving the dispersibility of silica, the electron-deficient double bonds can undergo bonding reactions with double bonds in natural rubber, further promoting the dispersion of silica in the rubber compound, improving the mechanical properties of the rubber compound, and reducing tire rolling resistance. Furthermore, the hydroxyl groups generated by the bonding reaction and the inherent amine groups in the structure can delay rubber aging, making it valuable for industrial applications.

The invention relates to the technical field of textile printing and dyeing, in particular to printing feed liquid, a preparation method thereof and application of the printing feed liquid in printing and dyeing. The printing material liquid is prepared from the following raw materials in parts by weight: 60 to 70 parts of modified acrylic emulsion, 2 to 2.4 parts of thickening agent, 0.5 to 1.5 parts of dispersing agent, 4 to 5 parts of stabilizing agent, 0.5 to 1 part of humectant, 1 to 2 parts of curing agent, 0.2 to 0.4 part of defoaming agent, 3 to 5 parts of dye and 50 to 60 parts of water. The printing material liquid prepared by the invention can be used for remarkably improving the quality of printed patterns and enhancing the color fastness to rubbing and the color fastness to washing of printed fabrics.

The invention relates to tertiary amine oxidation type zwitterionic lipid, lipid nano-delivery particles and application of the tertiary amine oxidation type zwitterionic lipid and the lipid nano-delivery particles. The invention provides tertiary amine oxidation type zwitterionic lipid which is proper in size and special in structure. The tertiary amine oxidation type zwitterionic lipid can deliver hydrophilic / hydrophobic organic / inorganic contents. The lipid nano-delivery particles are prepared on the basis of the tertiary amine oxidation type zwitterionic lipid, and various contents including hydrophilic drugs, hydrophobic drugs and inorganic nano-particles can be encapsulated by regulating and controlling the ratio of the tertiary amine oxidation type zwitterionic lipid to the lipid without the tertiary amine oxidation type group. The formed lipid nanoparticles are uniform in size, stably exist in different solutions, do not agglomerate, have long blood circularity of up to at least 60 hours, have very high specific affinity to tumors, are gathered in the tumors in quantity, do not cause any obvious damage to main organs, and can be used for preparing the lipid nanoparticles. The bioavailability of the content and the cancer treatment effect are obviously improved.

The invention discloses a lighting device, and relates to the technical field of lighting. The lighting device comprises a lamp holder, a supporting body and at least one light source module, wherein the supporting body is connected with the lamp holder; the multiple light source modules are installed on the supporting body and distributed in the circumferential direction of the supporting body, each light source module comprises a substrate, at least one light emitting unit arranged on one surface of the substrate and a light transmitting layer, and each light emitting unit comprises a laser chip; and the light transmitting layer is wrapped on the corresponding laser chips or covers the plurality of laser chips. According to the technical scheme, not only can the color of light be adjusted, but also the emitting angle of the light can be adjusted, the light emitting efficiency is effectively improved, and the laser chip can work under the high-power condition and can be well applied to the requirements of the high-power and high-lumen lighting market.

The invention discloses a line surface treatment process and surface treatment equipment thereof. The line surface treatment process comprises the following steps: S1, a shower coating treatment stage; s2, a segmented heating stage; s3, a gas treatment stage; and S4, a solvent recovery stage. According to the line surface treatment process and the line surface treatment equipment, the inclination angle of a line is finely adjusted through the height adjusting roller, so that the line is prevented from being heated and stretched at the same time, the phenomena that the line is stretched and a coating is stretched and cracked are avoided, then the device adopts a segmented heating mode for drying, namely, the set temperature of a first-section drying oven is 40-60 DEG C, and the set temperature of a second-section drying oven is 40-60 DEG C; the first section of drying oven is provided with an air flotation device, the front end and the rear end of the drying oven are provided with partition plates with slits, the second section of drying oven is provided with an air flotation device, the rear end of the drying oven is provided with a partition plate with small holes, the third section of drying oven is provided with an air flotation device, the rear end of the drying oven is provided with a partition plate with small holes, and the temperature of the fourth section of drying oven is set to be 120-150 DEG C; a partition plate with small holes is arranged at the rear end, so that heat cross temperature jump between the drying ovens is avoided.

The present invention provides a multi-force signal MEMS sensor that is resistant to inertial interference and a method for making the same. The present invention adopts a capacitive measurement principle, that is, the capacitance value is changed by changing the spacing between a pair of capacitor plates, thereby reflecting the size of the force signal, and includes a central boss, a movable main board, a Z-axis plate, internal comb teeth, external comb teeth, electrodes on the external comb teeth, a U-shaped beam, a peripheral fixed beam, and electrodes on the peripheral fixed beam. The present invention changes the structure that was originally supposed to be fixed comb teeth into movable comb teeth located on the outside, so that when inertial action occurs, the internal comb teeth and the external comb teeth are displaced together, greatly reducing the relative displacement that causes the interference signal to be generated, thereby achieving the function of resisting inertial interference. In addition, the thickness of the external comb teeth is greater than the thickness of the internal comb teeth, and the area of ​​the Z-axis plate is greater than the area of ​​the electrode on the glass plate, which enables the sensor to achieve decoupling between various signals while being able to detect six-axis force and torque signals.

The utility model discloses a declination shaft clutch mechanism of a harmonic equatorial telescope. The declination shaft clutch mechanism comprises a harmonic reducer output end. A lens cone seat connecting cylinder is fixedly mounted on the outer wall of the output end of the harmonic reducer, a second connecting screw is in threaded connection between the output end of the harmonic reducer and the lens cone seat connecting cylinder, a clutch hand wheel is fixedly connected to the outer wall of the lens cone seat connecting cylinder, and a DEC rotating shaft is fixedly connected to the side, away from the lens cone seat connecting cylinder, of the clutch hand wheel; a lens cone seat body is fixedly installed on the outer wall of the DEC rotating shaft, a first connecting screw is connected between the DEC rotating shaft and the lens cone seat body in a threaded mode, a lens cone seat connecting cylinder is rotationally connected with the DEC rotating shaft through a plane needle bearing and a deep groove ball bearing, and a traditional equatorial telescope balance adjusting mode cannot be directly achieved on a harmonic equatorial telescope. According to the design of the balance adjusting mechanism, even if the harmonic reducer does not rotate, balance adjustment of the rotating shaft can be achieved.

The invention aims to provide a preparation method and application of a sandwich membrane filled with supporting electrolyte gel between two layers of polyolefin membranes. And the polyolefin film has a good supporting effect. The solid gel layer can well block Zn < 2 + >, reduce the ion transference number of Zn < 2 + >, relieve the generation of zinc dendrites, and inhibit the diffusion of Br2 at the same time. The supporting electrolyte in the gel can be used for ion transmission. Compared with a traditional single-layer diaphragm, the sandwich membrane can realize high coulombic efficiency and high surface capacity circulation of the flow battery, and the energy density of the battery is further improved.