62results about How to "Reduce the interaction force" patented technology

The invention discloses high-temperature and high-pressure filtrate reducer sulfonated asphalt for drilling fluid and a preparation method of the high-temperature and high-pressure filtrate reducer sulfonated asphalt, and belongs to the technical field of filtrate reducers. A comb-shaped side chain is introduced into a benzene ring of SEBS, the benzene ring is endowed with a comb-shaped structure, the structure strongly interacts with sulfonated asphalt, asphalt dispersion is optimized, agglomeration is avoided, 5-(2-hydroxyethyl) uracil is introduced, the oleophylic and hydrophilic characteristics are balanced, the acting force between asphalt particles is reduced, the reaction efficiency and uniformity of asphalt and fuming sulfuric acid are improved, and the sulfonated asphalt is prepared. The dispersant promotes uniform dispersion of asphalt, accelerates sulfonation reaction and improves sulfonated asphalt quality. The surface activity of the modified SEBS and the sulfonated asphalt form a net structure, so that the water solubility of the asphalt is enhanced, the drilling fluid is convenient to blend, the liquid surface tension is reduced, and the bubble formation condition is destroyed. A quaternary ammonium salt group is introduced, a well wall is stabilized by utilizing an opposite attraction principle, clay hydrophobicity is promoted, hydration and expansion are inhibited, and collapse is prevented. The modified sulfonated asphalt is resistant to temperature and pressure, good in filtration resistance and stable in filtration control at high temperature and high pressure.

The embodiment of the invention relates to the photovoltaic field, and provides a manufacturing method of a battery string, a manufacturing method of a photovoltaic module and the photovoltaic module, and the manufacturing method of the battery string comprises the steps: providing an initial battery piece; segmenting the initial battery piece to form at least three segmented battery pieces; a buffer adhesive film is laid on the surface of the end part, close to the adjacent split battery piece, of each split battery piece; carrying out thermal fixation treatment, which comprises the following steps: heating the buffer adhesive film so as to enable the buffer adhesive film to be adhered to the surface of the fragmented battery piece; a welding strip is provided, the welding strip is electrically connected with the at least two fragmented battery pieces so as to connect the adjacent fragmented battery pieces in series, the adjacent fragmented battery pieces are partially overlapped, and the welding strip covers the buffer adhesive film on the surfaces of the fragmented battery pieces; and laser welding is carried out, and the laser welding comprises the steps that laser is controlled to irradiate the surface of the welding strip, so that the welding strip is welded to the surface of the fragmented battery piece. The reliability of the formed battery string can be improved.

The invention provides a processing method of electrochromic glass and an electrochromic glass substrate. The processing method comprises the following steps: S1, pretreating a tempered glass substrate; s2, the pretreated tempered glass substrate is subjected to pressurization air cooling treatment, the air pressure in the pressurization air cooling treatment process ranges from 12000 Pa to 16000 Pa till the stress of the tempered glass substrate reaches a first expected stress value, and a prepared tempered glass substrate is obtained; and S3, electrochromism processing is conducted on the surface of the prepared tempered glass substrate, annealing treatment at the temperature of 300-400 DEG C is included in the electrochromism processing process, and the stress of the prepared tempered glass substrate reaches a second expected stress value. Compared with a conventional processing preparation technology, the preparation method has the advantages that the pressure of the electrochromic glass is increased to 90 Mpa or above, so that the electrochromic glass has richer performance and wider use scenes, and meanwhile, the preparation method also has the advantages of high controllability, good repeatability, stable product quality and the like.

The invention relates to the technical field of adhesives, in particular to high-strength and high-toughness epoxy glue and a preparation method thereof.The high-strength and high-toughness epoxy glue comprises a component A and a component B. The component A and the component B are used in cooperation according to the mass ratio of 1: 1, and the component A comprises, by mass, 80-100 parts of epoxy resin, 10-20 parts of reactive diluent, 30-50 parts of liquid nitrile rubber buna 40 and 40-60 parts of filler; the component B is prepared from the following components in parts by mass: 40 to 60 parts of methylhexahydroanhydride, 0.4 to 0.6 part of PEG (polyethylene glycol)-carboxyl pyrazole copolymer and 40 to 60 parts of filler. According to the invention, the viscosity of the system is reduced by the PEG-carboxyl pyrazole copolymer, so that the epoxy glue is easier to process, coat and level in the use process, the viscosity reduction is beneficial to spreading of a material on a larger surface area, construction is convenient, the material can form a uniform thin-layer structure with a cross-linked network, and the strength and the toughness are improved.

The invention discloses a preparation method of a water-based coating for antistatic treatment of a flexible PVC (polyvinyl chloride) material, belongs to the technical field of antistatic coating processing, and aims to solve the technical problem that the flexibility, conductivity and conductive stability of a water-based coating film in the prior art need to be further improved. The preparation method comprises the following steps: adding polyacrylate into a polyurethane emulsion, stirring, adding a sodium hydroxide solution into a reaction system, adjusting the pH value of the system to 8-9, raising the temperature of the reaction system to 70-80 DEG C, carrying out heat preservation and stirring for 90-120 minutes, and carrying out post-treatment to obtain composite polyurethane; the graphene oxide is modified and then mixed with the polyacrylate reinforced composite polyurethane material, so that the antistatic property, flexibility and adhesiveness of the water-based paint are effectively improved, the water-based paint has good washing migration resistance, and the conductive stability of the water-based paint is improved.

The invention relates to the technical field of silicon dioxide, and discloses a cleaning material silicon dioxide for toothpaste and a preparation method thereof. The cleaning material silicon dioxide for the toothpaste is obtained by adding a nano-silicon dioxide modified polyethoxylene ether surfactant, quaternary ammonium salt modified chitosan modified nano-silicon dioxide particles and silica sol into a reactor and stirring. The silane coupling agent enables silicon dioxide particles to be more uniformly dispersed in the cleaning material, so that the contact area between the cleaning material and dirt is increased; hydrophobic groups of polyethoxylene ether molecules can be adsorbed to the surfaces of dirt particles, and a colloidal dispersion system formed by hydrophilic groups and water molecules can wrap the dirt particles and then wash away along with water flow. Silane coupling agent modified nano silicon dioxide and polyethoxylene ether play a synergistic effect, so that the cleaning effect is further improved; positive ions in the quaternary ammonium salt can adsorb negatively charged bacteria, so that dental plaque is reduced; and chitosan is grafted with quaternary ammonium salt, so that the positive charge density is improved, and the cleaning effect is further improved.

The invention discloses a quick-dry transparent super-hydrophobic and super-oleophobic coating suitable for a photovoltaic panel and a preparation method of the quick-dry transparent super-hydrophobic and super-oleophobic coating, and belongs to the technical field of new materials. The invention provides a quick-dry transparent super-hydrophobic and oleophobic coating. The quick-dry transparent super-hydrophobic and oleophobic coating comprises nano-scale hydrophobic silicon dioxide particles and a fluorine-containing acrylate polymer, through reasonable design and combination of the nanoparticles and the polymer, the super-hydrophobic and oleophobic coating with high visible light transmittance and excellent self-cleaning performance is obtained. The coating can ensure the cleanliness of glass on the surface of the photovoltaic panel in a long time, is hydrophobic and oleophobic, keeps a high sunlight incidence rate, and improves the power generation level; meanwhile, the preparation process of the coating is simple and convenient, the flow is simple, the curing and film forming time is short, and the cost waste caused by complex procedures and manual maintenance and cleaning is reduced.

The invention relates to the technical field of cement additives, in particular to a powder composition for cement addition and a preparation process of the powder composition, modified sodium lignin sulfonate serves as an important component of the powder composition, dispersity and stability of sodium lignin sulfonate are effectively improved through sulfomethylation and condensation reaction, and in cement concrete, the powder composition has the advantages that the dispersity and stability of sodium lignin sulfonate are improved; the modified sodium lignin sulfonate can be adsorbed on the surfaces of cement particles to form a protective film, friction force and resistance among the cement particles can be reduced, so that the fluidity of the concrete is improved, meanwhile, a sulfomethylation structure of the modified sodium lignin sulfonate can chemically react with calcium ions in the cement to form stable calcium salt, the stability of the concrete is further enhanced, and the service life of the concrete is prolonged. According to the powder composition for cement addition and the preparation method of the powder composition, the performance of cement concrete can be remarkably improved through well-designed components, and the composition has excellent flowability, anti-permeability, anti-freezing property, water resistance, mildew resistance and rust resistance.

The invention discloses a high-adhesion water-based paint and a preparation method thereof, and belongs to the technical field of water-based paints. Comprising the following steps: mixing and dissolving catechol modified acrylic acid of which the end group is amino, a flexible ester monomer, aldehyde olefin and an organic solvent, adding a free radical initiator, and heating for reaction to obtain a modified polyacrylic acid mixture; mixing, stirring and emulsifying the modified polyacrylic acid mixture, an organic silicon flatting agent solution, a compound emulsifier and deionized water to obtain the water-based paint with strong adhesive force. According to the bionics principle, a catechol derivative is introduced into an acrylic monomer, and strong adhesion to an automobile base material is realized through a polymer net structure formed by strong hydrogen bond crosslinking, metal coordination and other actions of the catechol derivative; and amino groups and aldehyde groups on the modified polyacrylic acid polymer can be crosslinked to form a dynamic imine structure, so that the high-temperature resistance of a coating film formed after the coating is coated is improved, and the functions of self-repairing and strong adhesion are realized.

The invention provides a preparation method of a modified nano particle-acrylamide copolymerization type anti-scouring flocculating agent. The preparation method comprises the following steps: firstly, partially modifying nanoparticles by using a silane coupling agent; then taking the modified nanoparticles, acrylamide and acrylic acid as monomers, taking ammonium persulfate, sodium hydrogen sulfite and azobis (isobutylamidine) as initiators, and synthesizing modified nanoparticle-acrylamide copolymerized hyperbranched polymer gel by using an aqueous solution polymerization method under a nitrogen condition; and finally, granulating, drying and crushing to obtain flocculant powder. According to the present invention, the hyperbranched polymer molecules using the nanoparticles as the core and the organic polymer as the branched chain are adopted as the flocculant to improve the flowing water washing resistance and the dispersion resistance of the underwater non-dispersible concrete mixture, and the water reducing agent has the certain water reducing effect so as to effectively improve the concrete fluidity;

The invention provides a method for preparing a lithium iron manganese phosphate composite positive electrode material based on a sol-gel method, and belongs to the technical field of lithium ion battery positive electrode materials. The method comprises the following steps: respectively preheating raw material solutions to a preset temperature; the method comprises the following steps: uniformly mixing a manganese salt solution with a complexing agent solution, adding a ferrite solution, a phosphorus-containing compound solution and a lithium salt solution, and dropwise adding concentrated ammonia water to obtain a reaction solution; placing the reaction solution in an ultrasonic-microwave combined reaction system, and performing ultrasonic treatment, ultrasonic-microwave cooperative treatment and microwave treatment to obtain xerogel; performing thermal decomposition treatment, adding a carbon source into a cooled product, and performing grinding and demagnetizing treatment to obtain precursor powder; and carrying out microwave gradient high-temperature sintering on the precursor powder in a microwave reaction system under a protective atmosphere condition, and cooling to obtain the lithium iron manganese phosphate composite positive electrode material. According to the invention, the preparation period is shortened, the uniformity of the material is effectively improved, and the prepared positive electrode material shows excellent dispersity, electronic conductivity and stability.

The invention relates to a lithium slag-based temperature-inhibiting anti-cracking waterproof agent and a preparation method thereof, and belongs to the technical field of building materials such as cement and concrete. The lithium slag-based temperature-inhibiting anti-cracking waterproof agent comprises the following components in percentage by mass: 40%-50% of modified lithium slag, 18%-30% of a calcium ion compensating agent, 9%-19% of a complexing agent, 10%-23% of a precipitation component, 1%-4% of silicone zirconium and 3%-7% of temperature change induction fibers, wherein the total mass of the raw materials is 100%; the preparation method comprises the following steps: weighing the raw material components according to the mass fraction, and uniformly mixing to obtain the lithium slag-based temperature-inhibiting anti-cracking waterproof agent. The lithium slag-based temperature-inhibiting anti-cracking waterproof agent can be used for specifically reducing concrete shrinkage cracks, reducing the internal temperature rise of the concrete and realizing crack self-repairing in the service stage of the concrete.

The invention relates to the technical field of copper alloy strip production, in particular to high-strength and high-elasticity copper alloy strip cold rolling equipment with a smoothing function, which comprises two cold rolling mechanisms with sequentially enhanced cold rolling effects and a plurality of cold rolling smoothing mechanisms arranged between the two cold rolling mechanisms, and the smoothing effects of the plurality of cold rolling smoothing mechanisms are sequentially enhanced. The cold rolling flattening mechanism comprises two flattening mechanisms and a pressure control mechanism; the flattening mechanism comprises two flattening structures, the flattening directions of flattening rollers in the two flattening structures on the copper alloy strip are opposite, and the flattening directions of the two flattening structures, located above the copper alloy strip, in the two flattening mechanisms on the copper alloy strip are opposite; the pressure control mechanism is used for controlling the pressure of the leveling mechanism on the copper alloy strip; the multiple cold rolling smoothing mechanisms are arranged, so that it is effectively guaranteed that the cold rolling quality of all positions of the copper alloy strip after cold rolling is uniform, and the cold rolling defects caused by unevenness of the copper alloy strip are reduced.

The invention belongs to the technical field of composite materials, and particularly discloses an aramid pulp fiber / ethylene propylene diene monomer composite material and a preparation method thereof. The preparation method comprises the following steps: mixing raw ethylene-propylene-diene monomer rubber, carbon black, a flame retardant, a vulcanizing agent, an accelerant and modified aramid pulp, uniformly mixing to obtain a green sheet, and pressurizing and vulcanizing the green sheet on a flat vulcanizing machine to obtain the aramid pulp fiber / ethylene-propylene-diene monomer rubber composite material. The aramid pulp modified by the method disclosed by the invention has the characteristics of light microfiber entanglement degree and strong binding force with the ethylene propylene diene monomer, so that the aramid pulp fiber / ethylene propylene diene monomer composite material has better mechanical properties.

The invention belongs to the technical field of air purification equipment, and relates to air dust removal equipment which comprises a shell, a first box body, a plurality of activated carbon plates, a turntable, a transmission rod and a rotating mechanism, the up-and-down vibration mechanism is connected with the transmission disc and the rotary disc and used for driving the transmission disc to vibrate up and down through rotation of the rotary disc; and a horizontal radial vibration mechanism. According to the invention, the rotating disc rotates to drive the transmission disc to vibrate up and down, and the transmission disc is driven to vibrate along the radial direction of the rotating disc in the up-down vibration process of the transmission disc, so that each activated carbon plate in the first box body is driven to vibrate along the radial direction of the rotating disc in the horizontal plane in the vertical plane vibration process; according to the activated carbon filtering device, each activated carbon plate vibrates in multiple directions in a three-dimensional space, agglomerated activated carbon particles are dispersed through vibration in multiple directions, the interaction force among the activated carbon particles is reduced, the agglomeration phenomenon among the activated carbon particles is relieved, and the adsorption effect of an activated carbon filtering layer is improved.

The application discloses a production method of base oil, which comprises the following steps: carrying out a hydroisomerization reaction on a lubricating oil base oil raw material under the action of at least one metal phosphide catalyst to obtain base oil, characterized in that the metal phosphide catalyst comprises a metal component and a carrier, the metal phosphide catalyst is subjected to twice modification treatment, the first modification is to introduce a first modification aid alkali metal and / or an acidic compound into the carrier, and the second modification is to introduce a second modification aid polyhydroxy organic compound into the metal component. According to the production method of the base oil, the lubricating oil base oil with low condensation point and low pour point can be produced by taking wax oil as the raw material and carrying out the hydroisomerization reaction on the wax oil by using the metal phosphide catalyst, meanwhile, the lubricating oil base oil produced by the application has low aromatic hydrocarbon content and high total lubricating oil base oil yield.

The present invention provides a defoaming device and an electroplating liquid recovery system, comprising a buffer tank, a liquid level maintaining device, a defoaming body, an electroplating tank and a liquid storage tank. The defoaming device is connected to the electroplating tank and the liquid storage tank, and the diameter of the buffer tank in the defoaming device gradually decreases from the inlet to the outlet, thereby reducing the interaction force when the liquid rushes into the outlet in the buffer tank, and reducing the formation of vortices at the outlet to bring in air; the liquid is kept at a water surface in the buffer tank by the liquid level maintaining device, and the liquid is isolated from the outside air when it flows from the outlet into the lower connecting pipe, thereby reducing the introduction of air; the defoaming body is arranged in the buffer tank on the flow path of the liquid, and when the liquid passes through the defoaming body, the air bubbles entrained in the liquid collide with the defoaming body and break or are adsorbed on the defoaming body, thereby reducing the foam generated by the sputtering rebound caused by the drop, and the structure is simple and the stability is strong.

The utility model relates to the technical field of shoe soles, in particular to a shoe sole with an air cushion, which comprises a shoe sole body, at least one air cushion is arranged on the shoe sole body, each air cushion comprises an outer bag film and a plurality of inner bag films, the outer bag films are wrapped to form an inner cavity, and the inner bag films are positioned in the inner cavity. The inner capsule membranes divide the inner cavity into a plurality of mutually independent capsule cavities, and each capsule cavity is in a polygon shape; the utility model further relates to the insole with the air cushion, and the air cushion is the same as the air cushion in the sole body in structure. As the bag cavities in the air cushion are formed by dividing the outer bag film by the inner bag film, no gap exists between the bag cavities, the bag cavities are mutually independent, the air cushion is arranged on the sole or the insole, the whole functionality of the sole or the insole cannot be seriously influenced by the failure of the large-area air cushion caused by local damage of the outer side of the air cushion, the durability is higher, and the shock absorption resilience is higher; the shape and the size of the air cushion can be customized according to the concave-convex structure of the sole or the insole, and wider requirements are met.

The invention discloses a method for liquid phase exfoliation of two-dimensional porphyrin covalent organic framework nanosheets by protonation strategy, wherein the two-dimensional porphyrin covalent organic framework of bulk material is placed in a methanesulfonic acid aqueous solution for water bath ultrasonic liquid phase exfoliation, and then the dispersion liquid is centrifuged and washed and dried to obtain the two-dimensional porphyrin covalent organic framework nanosheets, wherein the two-dimensional porphyrin covalent organic framework of bulk material is H 2 P‑Bph‑COF, TAPP‑H, TAPP‑Br, TAPP‑OMe or TAPP‑OH. The present invention has a simple operation process and can prepare a few-layer two-dimensional porphyrin covalent organic framework nanosheets at low cost and on a large scale. The yield of the two-dimensional porphyrin covalent organic framework nanosheets exfoliated by liquid phase under optimal conditions is as high as 63.1%, and the proportion of nanosheets with a thickness of less than 2 nm is as high as 97.1%.

The present invention provides a method for debonding fertilized eggs of marine fish, comprising the following steps: S1. immersion and disinfection of fertilized eggs; S2. preparation of debonding liquid; S3. debonding of fertilized eggs; S4. separation and cleaning of fertilized eggs. Before debonding fertilized eggs of marine fish, the present invention first uses a composite Chinese herbal medicine preparation to soak the fertilized eggs of marine fish to kill bacteria and fungi in the fertilized eggs of marine fish. Avoid infection of fertilized eggs of marine fish during the debonding process, thereby improving the subsequent hatching rate of fertilized eggs of marine fish. The present invention uses a debonding agent composed of a specific proportion of disodium hydrogen phosphate, water, a composite enzyme solution, and cystine to debond fertilized eggs of marine fish. The debonding agent of the present invention is mild and non-irritating, and can effectively avoid damage to fertilized eggs of marine fish caused by mechanical vibration and friction in traditional debonding methods.

The utility model relates to the technical field of water pump sealing, in particular to a water pump with a novel sealing structure. The utility model provides a water pump with a novel sealing structure. The water pump comprises a pump body, a pump cover and a water-swelling water stop rubber strip, a groove is formed in the middle opening face of the pump body, the water swelling water stopping rubber strip is arranged in the groove, the middle opening face of the pump cover is fixed to the middle opening face of the pump body, and the middle opening face of the pump cover covers the groove. When leakage occurs at the middle open surface, the water-swelling water-stopping rubber strip is in contact with leaked water, the water-stopping rubber strip in contact with the water can rapidly swell, the volume of the water-stopping rubber strip in contact with the water is rapidly increased in a limited groove, the whole local area is filled with the water-stopping rubber strip, large pressure is generated, a leakage channel is blocked, and therefore the effects of blocking leakage and strengthening sealing are achieved. Compared with the mode that a sealing gasket is laid between a pump body and a pump cover, the water swelling water stopping rubber strip does not need to be machined and customized according to different water pumps.

The present invention provides an organic electroluminescent device, and specifically relates to the technical field of organic electroluminescent. In order to solve the problem that the performance of the device is poor due to the poor performance of the covering layer material, the present invention provides an organic electroluminescent device, the covering layer material of the device can effectively improve the efficiency of light extraction inside the device, thereby increasing the luminous efficiency and service life of the device, because the covering layer compound has a larger rigid plane, a more regular symmetrical structure, and a lower interaction force between molecules, so that it has the advantages of a higher glass transition temperature, good thermal stability, and good film-forming properties; therefore, applying it to the organic electroluminescent device can effectively improve the luminous efficiency and performance of the device.

The invention relates to a high-hardness die fillet milling cutter, which is applied to the technical field of milling cutters, and comprises a cutter handle and a cutting part arranged at one end of the cutter handle, and the cutting part comprises a plurality of cutting edges and a spiral chip groove. The tool nose fillet blade is of the arc structure and adopts the variable rake angle structure, the design can reduce cutting resistance, improve the strength and durability of the tool nose arc and reduce vibration and noise in the cutting process, and the arc-shaped structure ensures the stability of end blade cutting and circumferential blade cutting, avoids tipping of the tool nose and improves the cutting efficiency. The end edge, the circumferential edge and the tool nose fillet edge are all subjected to blunt rounding treatment, microdefects of the cutting edge are reduced, and the cutting stability is improved. The cutting edge in the obtuse round shape can reduce the interaction force in the cutting process and reduce the cutting heat and abrasion in the machining process, so that the strength of the cutting edge is higher, and the service life of the cutter is prolonged.

The invention relates to the technical field of high polymer materials, in particular to a perfluoropolyether derivative with high thermal stability, a preparation method of the perfluoropolyether derivative, a nano coating composition and application of the nano coating composition, and the perfluoropolyether derivative is composed of a K-type perfluoropolyether main chain and an amido-containing alkane chain segment connected to the tail end of the K-type perfluoropolyether main chain through an amido bond. The shielding effect of fluorine atoms on highly polarized fluorocarbon bonds on a perfluoropolyether main chain on a carbon-carbon main chain is utilized, so that the skeleton main chain is not easy to damage, and therefore, the perfluoropolyether derivative has excellent chemical stability and high temperature resistance; an alkane chain segment with a specific structure is introduced to the tail end of a perfluoropolyether main chain, so that the thermal stability of the derivative is remarkably improved; meanwhile, as fluorine atoms have relatively strong electronegativity, the interaction force among perfluoropolyether molecules is relatively small, so that the perfluoropolyether has extremely low surface tension and good hydrophobic and oleophobic properties, and has high optical transparency and good adhesive force and durability when a nano coating is formed.

The invention discloses an optical fiber fixing structure, an optical fiber scanning system and an optical fiber scanner, and belongs to the field of optical fiber scanning. According to the optical fiber fixing structure provided by the embodiment of the invention, the controllable vibration device and the optical fiber are arranged to have the gap, so that the stress change caused by mutual friction between the optical fiber and the controllable vibration device during vibration can be effectively inhibited; when the optical fiber is fixed, the optical fiber is bent on the surface of the controllable vibration device, so that the stress generated by the optical fiber during vibration is further reduced, the interaction force between the optical fiber and the controllable vibration device is integrally reduced to the maximum extent, and the optical fiber fixing structure can be applied to the field of optical fiber scanning display. Therefore, the optical fiber scanner and the optical fiber scanning system comprising the optical fiber fixing structure have relatively important application values.

The invention relates to an oxygen vacancy-enriched potassium vanadate zinc ion battery positive electrode material as well as a preparation method and application thereof, and belongs to the technical field of aqueous zinc ion battery positive electrode materials. In order to solve the problem that oxygen vacancies introduced into a positive electrode material V2O5 are unstable in the battery circulation process, the invention provides an oxygen vacancy-enriched potassium-zinc vanadate ion battery positive electrode material which is potassium ion doped hydrated vanadium pentoxide. The high-stability oxygen-vacancy-enriched potassium vanadate zinc ion battery positive electrode material is obtained by accurately regulating and controlling the doping concentration and preparation process parameters, and the stability and the electrochemical performance of the material in the circulation process and the diffusion kinetics of zinc ions are improved. When the material is applied to the aqueous zinc ion battery, the material shows relatively high energy density and power density and excellent electrochemical performance and cycling stability, a test of 12000 cycles is carried out under the current density of 10Ag <-1 >, and the capacity retention rate after the cycles is close to 90%.

The utility model discloses an excavator hydraulic pump pump cover of improved interaction force structure, including pump cover body, the pump cover body is connected through bolt between pump body, the periphery of pump cover body all movably installs the flap, is located the square groove of flap department on the pump cover body, the guide plate of being located square groove inside is fixedly installed on the flap. According to one embodiment of the present disclosure, by setting the flap, the guide plate, the clamping block and the limiting assembly, when the pump cover body is connected on the pump body through the bolt, the staff can make the flaps around the pump cover body gather each other through the limiting assembly, so that the flap moves to the middle part of the pump cover body, and then the clamping block can be inserted into the reserved slot hole on the surface of the pump body, so that when the pump cover body bears the pressure inside the pump body, the clamping block and the flap can share part of the pressure, reduce the interaction force that the bolt and the pump body thread hole receive, thereby avoiding the bolt excessive fatigue service life reduction.

The invention discloses an insulating plug of an elbow-type cable joint with a temperature measurement function, and relates to the technical field of cable joints, the insulating plug comprises an insulating shell connected with the elbow-type cable joint and an insulating plug assembly connected in the insulating shell, a metal piece is installed in the insulating shell, and a circuit board is conductively connected with the metal piece. The temperature measuring element measures temperature data in the elbow-type cable joint and outputs the temperature data through the data output module; the metal shielding cover covers the metal piece and the circuit board, and a suspension capacitor formed between the metal shielding cover and the metal piece generates a potential difference in an alternating electric field and can spontaneously supply power to the circuit board; the dielectric layer is arranged between the metal piece and the metal shielding cover. The temperature measuring element is arranged in the insulating plug, and the metal shielding cover and the metal piece form a capacitor to supply power to the temperature measuring element, so that the temperature in the cable can be accurately measured, potential faults of cable accessories can be conveniently found in time, and the safety and stability of power grid operation are improved.

The invention relates to a high-thermal-conductivity water additive and a preparation method thereof, and belongs to the technical field of water additives. Pure natural tea saponin is adopted as a basic raw material, and a dodecyl chain is introduced under an alkaline catalysis condition to modify the tea saponin, so that tea saponin molecules can be spontaneously assembled into stable micelles in an aqueous solution, hydrogen bonds among water molecules are effectively destroyed, and the surface tension of water is remarkably reduced; the intermolecular interaction force of the modified tea saponin is enhanced, and the stability of the modified tea saponin in a high-temperature environment is enhanced. Besides, a ZIF-8 porous material is used as a carrier, a magnetic carrier easy to recover is prepared through high-temperature carbonization and confinement of magnetic substances, rich sites are provided for uniform loading of tea saponin through the high specific surface area and the regular pore channel structure of ZIF-8, and the thermal stability and the chemical stability of the material are further improved through carbonization; and through the synergistic effect of the magnetic substance and the carbonized ZIF-8, an efficient heat conduction network is constructed, and the heat conduction efficiency of the additive system is further improved.