27results about How to "Improve anti-settling performance" patented technology

The invention relates to a weak thixotropic, anti-settling and heat-conducting epoxy pouring sealant and a preparation method thereof, nano silicon dioxide, secondary amino silane, polyether glycol, isocyanate and other raw materials are adopted, a star-shaped branched anti-settling agent is prepared through a two-step process, and the star-shaped branched anti-settling agent is applied to a component A and a component B of the heat-conducting and flame-retardant epoxy pouring sealant. The component A and the component B can be uniformly mixed and stirred according to the mass ratio of 1: 1, vacuum defoaming is performed to obtain the heat-conducting flame-retardant epoxy pouring sealant, and during actual use, the pouring sealant can be injected into a device needing to be packaged and cured for 2 hours at the temperature of 120 DEG C, so that the heat-conducting flame-retardant epoxy pouring sealant is obtained. The star-shaped branched anti-settling agent prepared by the invention has a good anti-settling effect in the pouring sealant and effectively improves the high and low temperature cracking resistance of a cured product of the epoxy pouring sealant at the same time, and a packaging material formed by the cured product has the advantages of excellent sealing performance, long-term durability and stability and the like; the material can be widely applied to the fields of electronics, 5G, low-altitude aircrafts and the like.

The application discloses a kind of independent support combination hydraulic support for large mining height composite roof mining filling, including support body, and the leakage prevention assembly of being additionally installed in the one side of support body, support assembly includes support base, four support adjusting electric cylinders one are movably installed in the top of support base, and mining support assembly is movably installed in the top of four support adjusting electric cylinders one, mounting seat is fixedly installed in the top of support base, and two support rods one are movably installed in the inside of mounting seat;By setting inner and outer double-layer shielding leakage prevention assembly, shielding band is conveniently disassembled and replaced by the quick assembly structure of clamping type, is matched with adhering structure, bottom counterweight compaction structure and arc convex projection blocking structure, form omnibearing sealing protection system, can effectively block the side, bottom gap of filling material in mining filling operation process, completely solve the problem of large mining height working face filling material leakage, leakage, greatly improve filling density and filling operation quality.

The invention relates to the technical field of construction engineering foundation treatment, in particular to a foundation structure based on a high-saturation brine crystallization technology and a construction method of the foundation structure. The foundation structure comprises a basic primary salt rock bearing layer, a bottom framework cementing layer and a surface sand gravel compensation layer. As the magmatic rocks are very hard, high in density and enough in salt lake chemical environment resistance, the magmatic rocks are directly put into a hypersalinity brine area to form a rigid framework, framework building-in, gap filling and overall cementing are achieved through natural crystallization of salt lake hypersalinity brine, and a core rigid framework of the foundation is formed; the structure can be connected with a primary salt rock bearing layer of a lower foundation to form a stress transmission system, can resist soaking erosion caused by conventional fluctuation of the brine water level, has anti-floating and anti-seepage dual performance, can improve the foundation bearing capacity and the anti-settling capacity, and enables a building newly built on a salt lake to be more stable. Meanwhile, the magmatic rocks are natural materials, so that the salt lake environment is not polluted, and the environmental protection property is good.

The invention provides a preparation method of positive electrode slurry, the positive electrode slurry, a positive electrode plate, a secondary battery and an electric device. The preparation method of the positive electrode slurry comprises first stirring, second stirring and third stirring, in the first stirring, the positive electrode active material and the binder are mixed and stirred to prepare a dry mixture; in the second stirring process, the solvent and the dry mixture are kneaded, and primary slurry is prepared; in the third stirring process, a conductive agent, a solvent, a binder and the primary slurry are mixed and stirred, and the positive electrode slurry is prepared. The preparation method has universality, is suitable for slurry containing binders with different molecular weights, and is particularly suitable for high-molecular-weight binders, so that the gel resistance and sedimentation resistance of the slurry are effectively improved, the uniformity of the slurry is optimized, and the preparation cost is reduced and the production efficiency is improved.

This invention relates to the field of orthopedic repair technology, and provides a 3D-printed mortise-and-tenon composite drug-loaded femoral head necrosis reconstruction rod and its preparation method. The reconstruction rod includes a skeleton, the inner cavity of which has a three-dimensional, interconnected, micron-scale topological porous structure; both the outer surface of the skeleton and the surface of the micron-scale topological porous structure are covered with a drug composite layer; the outer surface of the skeleton has multiple tenons for forming a mortise-and-tenon lock with the inner wall of the femoral head medullary cavity; the drug composite layer contains a first drug that inhibits osteoclast activity and a second drug that promotes osteoblast differentiation. This invention achieves anti-rotation and anti-settlement mechanical locking with the host bone through a biomimetic mortise-and-tenon structure, and actively regulates the local bone repair microenvironment by loading dual drugs that inhibit osteoclast activity and promote osteoblast differentiation, ultimately achieving bio-integrated fixation mimicking natural bone.

The present invention relates to the technical field of beam-making pedestal foundation, and in particular to a beam-making pedestal foundation structure and design method for a precast beam, wherein the beam-making pedestal foundation structure for the precast beam includes a pedestal enlargement foundation and a pedestal foundation, the pedestal foundation is arranged at the center of the top of the pedestal enlargement foundation, and the precast beam template is arranged on the top of the pedestal foundation to transfer the weight of the precast beam template and the weight of the precast beam to the pedestal foundation. The beam-making pedestal foundation structure for the precast beam overcomes the problems of large amount of original soil replacement of the foundation and long construction period and high cost caused by large-area concrete foundation laying on the foundation during the construction of the existing precast beam site by adopting the coordinated design of the pedestal foundation and the pedestal enlargement foundation, and reduces the laying area and amount of concrete by optimizing the size and layout of the pedestal foundation and the pedestal enlargement foundation, thereby reducing the construction cost and shortening the construction period.

The utility model discloses a kind of sponge city efficient permeation greenbelt planting structures, it includes: green grass layer, artificial backfill nutrient soil layer, non-woven geotextile, water-accumulating layer and original soil layer, water-accumulating layer, non-woven geotextile, artificial backfill nutrient soil layer and green grass layer are sequentially laid from bottom to top in the upper of original soil layer, first drainage pipeline is provided in original soil layer, a plurality of rootlet pipes are provided on first drainage pipeline, a plurality of rootlet pipes are arranged along the direction of first drainage pipeline, one end of rootlet pipe extends into water-accumulating layer, a plurality of first through holes are provided on rootlet pipe, overflow pipe is provided on first drainage pipeline, overflow pipe extends to green grass layer upwards, overflow hole is provided on first drainage pipeline, overflow hole bottom is connected with second drainage pipeline, second drainage pipeline is connected with water-collecting well, and sealing assembly is provided at overflow hole. The utility model can solve the problem of poor permeability of urban green space compared with prior art.

This utility model discloses a high-strength, leak-proof fiberglass septic tank, belonging to the field of fiberglass septic tanks. It includes a fiberglass septic tank body, with a protective component on the outer side of the body and an anti-settlement component at the bottom. The protective component includes a reinforcing layer, the inner side of which is fixedly connected to the outer side of the fiberglass septic tank body, and insulation cotton fixedly connected to the outer side of the reinforcing layer. The anti-settlement component includes an anti-settlement platform, the top of which is fixedly connected to the bottom of the insulation cotton, and an arched base fixedly connected to the bottom of the platform. A main pile and a secondary pile are fixedly connected to the bottom of the arched base, with the secondary pile close to the outer wall of the main pile. Through the anti-settlement component, ground pressure is effectively dispersed and transmitted, avoiding tank deformation, cracks, and leakage caused by uneven foundation settlement, significantly improving the equipment's anti-settlement capability.

The invention relates to a water-based polyurethane finish paint with high construction performance. The coating is composed of a component A and a component B, the component A comprises aliphatic polycarbonate modified waterborne polyurethane emulsion, an ultra-high molecular weight dispersing agent, a flatting agent and a defoaming agent; and the component B comprises polyether modified isocyanate and a cosolvent. The aliphatic polycarbonate modified waterborne polyurethane emulsion and the polyether modified isocyanate are used as matrix resin, so that a coating film and a base material have excellent adhesive force, water resistance and yellowing resistance, and the drying rate of the coating film can be increased; by adding a special modified nanoscale material, a coating film has good hardness, chemical resistance, weather resistance and the like. According to the invention, roller painting and spraying of the waterborne polyurethane finish paint are realized, the special modified nanoscale material is used for the first time to improve the mechanical property, weather resistance, wear resistance, medium resistance and the like of the paint film, and the purpose of reducing the product cost can be achieved on the basis of improving the product performance.

The present invention discloses an anti-settling subway steel pipe segment structure for soft foundation, which relates to the field of subway steel pipe segments, including an axially arranged first pipe segment, wherein the first pipe segment is fixedly connected with a plurality of fixed platforms inclined at both ends, the fixed platforms are hollow and are provided with anti-settling columns inside, the top of the anti-settling columns are connected to the fixed platforms by a connecting structure, the anti-settling columns of adjacent first pipe segments are staggered, the anti-settling columns are arranged with branch pipes at intervals along the length direction, the branch pipes are slidably connected in the anti-settling columns along the radial direction of the anti-settling columns, the anti-settling columns are coaxially slidably connected with hollow plug-in columns, and the plug-in columns are used to push the branch pipes to slide in a direction away from the center of the anti-settling columns. The present invention makes the anti-settling columns between adjacent annular structure steel pipe segments staggered, forms a stable mesh concrete material structure in the stratum, disperses the pressure of the steel pipe segments on the soft foundation, and effectively improves the anti-settling ability of the steel pipe segments on the soft foundation.

The invention relates to the technical field of inspection well construction, in particular to an inspection well surrounding road surface reinforcing structure and method.The inspection well surrounding road surface reinforcing structure comprises a renovated well base, a renovated well lid ring base and a reinforcing pile casing, and the renovated well base is fixedly installed on the upper end face of a shaft of a well chamber body; the renovated well lid ring seat is fixedly installed on the upper end face of the renovated well seat, the reinforcing pile casing is embedded in the renovated foundation pit, the lower end face of the reinforcing pile casing abuts against the inner wall of the bottom of the renovated foundation pit, a reinforcing assembly is arranged between the reinforcing pile casing and the renovated well seat, and concrete is poured in the renovated foundation pit to form a renovated road surface. The upper surface of the renovated well lid ring seat is flush with the upper surface of the renovated road surface. The method has the effect of prolonging the service life of the pavement around the renovated inspection well.

The utility model relates to the technical field of tower foundations, and discloses an electric tower foundation structure which comprises a foundation body and a circular truncated cone fixedly connected to the upper surface of the foundation body, a plurality of bolts are evenly embedded and fixedly connected to the upper surface of the circular truncated cone, and nuts are connected to the outer portions of the bolts in a threaded mode. The upper end of the nut is located outside the bolt and is fixedly connected with a ratchet wheel, and a positioning mechanism is arranged in front of the bolt; through a matching mechanism of the ratchet wheel and the pawl, the nut is effectively prevented from rotating anticlockwise, and the problem of looseness caused by vibration or external force after fastening is solved; a limiting rod in the positioning mechanism is automatically embedded into a pawl under the action of a second spring to form double locking, so that stable meshing of the pawl and a ratchet wheel is further ensured, and accidental dislocation is avoided; the anti-settling capacity of the foundation structure is remarkably improved through the tip design of the reinforcing rod; the design enhances the stability and safety of the whole structure, and has the advantages of high practicability and high reliability.

The utility model discloses a collapsible loess area inspection well anti -settlement improvement structure belongs to inspection well technical field, including inspection well body, and inspection well body is by a plurality of inspection well unit assembly, and inspection well unit includes annular well shaft and fixing piece, and fixing piece along the outer ring surface of annular well shaft is evenly arranged with multiple, and fixing piece includes vertical connection's support plate and fixed web, and support plate is used for increasing the contact area of inspection well unit and surrounding soil body, and support plate is equipped with through -hole, and the support plate of each layer inspection well unit is aligned along the axial, and the through -hole of alignment is equipped with screw rod, and the bottom of screw rod is equipped with fender, and fender is located with the support plate of bottom layer and is abutted, and screw rod is equipped with with its thread connection's lock nut, and lock nut is used for the close -up support plate to fixed each layer inspection well unit. Each layer inspection well unit can cooperate with the stress, can pass through the force transmission dispersion stress of structure self, reduces the local damage of the stress concentration.

The utility model belongs to the technical field of bridge maintenance, and particularly relates to a bridge anti-sedimentation structure which comprises a bridge column, supporting plates and telescopic rods, the bottom of the bridge column is fixed in a soil layer, and the first supporting plate is arranged in the soil layer and fixed to the periphery of the bridge column; the second supporting plate is arranged on the soil layer and fixed to the periphery of the bridge column, and the bottom of the second supporting plate is fixed to the surface of the soil layer; the first elastic telescopic rod is arranged in a soil layer, the bottom of the first elastic telescopic rod is fixed to the top of the first supporting plate, and the top of the first elastic telescopic rod is fixed to the bottom of the second supporting plate; the third supporting plate is arranged in the middle of the bridge columns, the third supporting plate is at least in friction connection with the two bridge columns, the multiple stages of supporting plates and the multiple elastic telescopic rods are used for connecting all parts of the bridge, and settlement can be counteracted while the overall anti-settlement capacity of the bridge is improved.

The utility model discloses a sealing device for a joint of a double-wall corrugated pipe and a cement inspection well, which comprises the cement inspection well, the double-wall corrugated pipe and a sealing component, the sealing component comprises an annular capsule, and a filling port and an exhaust port which are communicated with the inside of the annular capsule are respectively and correspondingly arranged on two sides of the annular capsule. And the annular capsule is sleeved outside the connecting end of the double-wall corrugated pipe and is inserted into a bell mouth of the cement inspection well. The expansion cement is poured into the annular capsule, and the annular capsule is filled and sealed in the gap between the inner wall of the bell mouth of the cement inspection well and the outer wall of the double-wall corrugated pipe by utilizing the volume expansion when the expansion cement is solidified and formed, so that the effects of sealing the joint and fixing the double-wall corrugated pipe are achieved.

The invention provides a preparation method of positive electrode slurry, the positive electrode slurry, a positive electrode plate, a secondary battery and an electric device. The preparation method of the positive electrode slurry comprises first stirring, second stirring and third stirring, in the first stirring, the positive electrode active material and the binder are mixed and stirred to prepare a dry mixture; in the second stirring process, the solvent and the dry mixture are kneaded, and primary slurry is prepared; in the third stirring process, a conductive agent, a solvent, a binder and the primary slurry are mixed and stirred, and the positive electrode slurry is prepared. The preparation method has universality, is suitable for slurry containing binders with different molecular weights, and is especially suitable for high-molecular-weight binders, so that the viscosity and anti-settling property of the slurry are effectively improved, the uniformity of the slurry is optimized, the conductivity is improved, and the preparation cost is reduced and the production efficiency is improved.

The invention relates to an electrorheological fluid material of MOF / MoS2 hybrid particles and a preparation method of the electrorheological fluid material. The dispersed phase of the electrorheological fluid is anisotropic MOF / MoS2 nanoparticles, and the continuous phase is dimethyl silicone oil; the preparation process comprises the following steps: firstly, preparing MoS2 by adopting a hydrothermal method, and then preparing MOF / MoS2 nanoparticles by adopting a solvothermal method. The surface of the prepared MOF / MoS2 nanoparticles is attached with a petal-like lamellar structure, so that the interface polarization of the material is promoted. The electrorheological fluid prepared from the material and simethicone has extremely high electrorheological effect and anti-settling effect. A transmission electron microscope diagram of the MOF / MoS2 nano-particles is displayed in an attached drawing.

The utility model relates to the technical field of building structure engineering, and discloses an anti-settling prefabricated column which comprises a prefabricated column body and an anti-settling top block, the anti-settling top block is arranged at the top end of the prefabricated column body, the height of the anti-settling top block is smaller than the length of the prefabricated column body, and the plane sectional area of the anti-settling top block is larger than that of the prefabricated column body. The center point of the anti-sinking top block is located on the center extension line of the prefabricated column body. The effect of improving the anti-settling performance of the prefabricated column is achieved.

The expandable interbody fusion cage comprises an acetabular cup and a titanium cage, the interior of the acetabular cup is hollow, and the titanium cage is installed in the acetabular cup; the acetabular cup comprises a left shell and a right shell which are symmetrically arranged, the left shell and the right shell are respectively provided with a plurality of vertical columns which are vertically arranged, the front ends of the left shell and the right shell are respectively provided with an I-shaped frame, a certain gap is formed between the middle portions and the rear ends of the left shell and the right shell, and clamping sawteeth are arranged on the upper faces and the lower faces of the middle portions of the left shell and the right shell respectively. A flexible supporting column and a bridging column are installed in a gap between the left shell and the right shell, and the acetabular cup expands in the left-right direction through the I-shaped frame, the flexible supporting column and the bridging column. The front end of the titanium cage is conical, a limiting groove matched with the I-shaped frame is formed in the conical front end, a bone grafting cavity is formed in the middle of the titanium cage, the upper side and the lower side of the bone grafting cavity are open, and a plurality of hollow holes are formed in the cage wall of the titanium cage. The interbody fusion cage is reasonable in structure, stability and anti-settling performance can be improved, and therefore certain help and guidance are provided for clinic.

The invention discloses an anti-sedimentation type subway steel pipe sheet structure for a soft foundation, and relates to the field of subway steel pipe sheets, the anti-sedimentation type subway steel pipe sheet structure comprises first pipe sheets which are axially arranged, the first pipe sheets are fixedly connected with a plurality of fixing tables inclined towards the two ends, the fixing tables are hollow, and anti-sedimentation columns are arranged in the fixing tables; the top ends of the anti-sedimentation columns are connected with the fixing table through connecting structures, the anti-sedimentation columns of the adjacent first pipe pieces are staggered, the anti-sedimentation columns are provided with branch pipes at intervals in the length direction, the branch pipes are connected into the anti-sedimentation columns in a sliding mode in the radius direction of the anti-sedimentation columns, hollow inserting columns are coaxially connected into the anti-sedimentation columns in a sliding mode, and the hollow inserting columns are arranged in the anti-sedimentation columns in a sliding mode. And the insertion column is used for pushing the branch pipe to slide in the direction away from the center of the anti-sedimentation column. The anti-settling columns between the adjacent steel pipe pieces of the annular structure are staggered, a stable net-shaped concrete material structure is formed in a stratum, the pressure of the steel pipe pieces on a soft foundation is dispersed, and then the anti-settling capacity of the steel pipe pieces on the soft foundation is effectively improved.

The utility model discloses a novel transmission line river-crossing tower foundation relates to transmission line engineering technical field, it includes four independent foundation and three layers of link beam, three layers of link beam are arranged at four independent foundation between along vertical direction interval, for the whole reinforcement of four independent foundation and the stress synergy, every independent foundation all includes foundation bottom plate and foundation stand, and foundation bottom plate horizontal arrangement, its top and the bottom fixed connection of foundation stand, three layers of link beam include upper layer link beam, middle layer link beam and lower layer link beam, upper layer link beam is close to the bottom setting of iron tower tower leg, and middle layer link beam sets up in the middle position of foundation stand height direction, and the bottom of lower layer link beam is flush with the top of foundation bottom plate. The utility model scheme can adapt to the soft soil of river bank, and the whole stress synergy performance is good, can effectively resist water environment erosion, and the service life is long.

The invention discloses an anti-overturning fabricated foundation for an electric pole and a construction method of the anti-overturning fabricated foundation, and belongs to the technical field of electric pole matched foundation construction. The technical problems that an existing chassis and chuck structure is poor in anti-overturning capacity, and an electric pole is prone to falling and inclining are solved. Comprising a chassis pile, a connecting rib, a chuck, a U-shaped screw, an electric pole and a backfill soil layer, the chassis pile comprises a pile foundation and a chassis table, the chassis table is installed on the top face of the pile foundation, a disc groove is formed in the top face of the chassis table, the vertical connecting rib is arranged on the chassis table along the outer side of the disc groove, and a vertical through hole is formed in the middle of the chuck; vertical through holes are formed in the disc groove, the connecting ribs are sleeved with the chucks through the vertical through holes, transverse through holes are formed in the left portions and the right portions of the chucks, the two ends of the U-shaped screws penetrate through the transverse through holes respectively, the electric pole is vertically installed on the disc groove, the chucks are installed on one side of the electric pole through the U-shaped screws, and backfill soil layers are arranged on the upper sides and the lower sides of the chucks. And the overturning resistance of the electric pole is improved. The method is used for electric pole matching foundation construction.

This invention provides a prestressed pipe pile for foundation construction, relating to the field of foundation pipe piles. It includes a pipe pile section with a row of identical structures. A ring of pre-embedded nuts is installed on the pipe pile section. A weld protection element is fitted onto the pipe pile section, located outside the ring of pre-embedded nuts. An adjustable pointed end is installed at the bottom of the pipe pile section. The weld protection element surrounds the weld bevel of the upper connecting ring. Combined with a retraction column, this ensures that mechanical fastening is prioritized before welding the pipe pile section. Specifically, by first connecting the pre-embedded connecting cylinder with connecting bolts, a stable connection is maintained between the upper and lower connecting rings, while the weld bevel fits tightly. This addresses the current problems of prestressed pipe piles used in foundation construction, such as the inconvenience of adjusting the retraction of the pile tip and poor weld quality control.

The invention discloses an anti-erosion settlement treatment method for an artificial sea reclamation land foundation, which comprises the following steps of: S1, surveying and setting out a cofferdam, and constructing the cofferdam by adopting a water-erosion-resistant building material; s2, hydraulic reclamation sand construction is adopted, so that the site in the cofferdam reaches the hydraulic reclamation height, and then the site is flattened through a compactor; s3, according to a measurement result, a drainage plate is installed on the site, and the drainage plate is vertically arranged in a hole; s4, a drainage pipe is installed, all the drainage plates are communicated through the drainage pipe, the drainage pipe is connected with a vacuum pump, and the vacuum pump is debugged; s5, a layer of non-woven fabric is laid on the drainage pipe, and 2-4 layers of sealing films are laid on the non-woven fabric; s6, a groove is dug in the periphery of the site, a sealing film is laid along the bottom of the groove, then rock soil backfilling is adopted to form a cofferdam, and sealing treatment is conducted; s7, the vacuum pump starts to exhaust air; and S8, laying a protective layer on the sealing film. Compared with the prior art, the problem that an artificial sea reclamation land foundation is poor in erosion and settlement resistance can be solved.

The invention relates to the technical field of heat conduction materials, in particular to low-heat-resistance low-oil-permeability anti-aging thixotropic high-heat-conduction silicone grease and a preparation method thereof. According to the silicone grease, dimethyl silicone oil and vinyl-terminated polydimethylsiloxane serve as matrixes, layered interface modified spherical aluminum oxide and flaky boron nitride are compounded to serve as heat conduction filler, and hydrophobic fumed silica and a fixed-point micro-crosslinking system are added. Through a process of firstly constructing a heat-conducting network and then triggering sparse crosslinking, high heat conductivity coefficient, low interface thermal resistance, good thixotropy and long-term thermal stability are realized, the problems of oil leakage, sedimentation and aging under high filling are effectively solved, and the composite material is suitable for heat dissipation of high-power electronic devices.

This application relates to the field of dye technology, and provides an environmentally friendly liquid dispersed turquoise blue dye and its preparation method. The preparation method includes: dividing a dispersant into two parts, adding the first part of the dispersant to the turquoise blue dye raw material, and performing a first stirring treatment and a heat preservation treatment sequentially to obtain a pre-dispersed slurry; mixing deionized water, the second part of the dispersant, a wetting agent, and a pH adjuster to obtain an hydration liquid, adding the hydration liquid to the pre-dispersed slurry for hydration treatment to obtain a dispersed turquoise blue slurry; mixing nanocellulose, deionized water, and tannic acid to obtain a premixed liquid, grinding the dispersed turquoise blue slurry and adding it to the premixed liquid, performing a second stirring treatment, and then adding a humectant, an antifoaming agent, and a preservative, and mixing to obtain the environmentally friendly liquid dispersed turquoise blue dye. This invention, by adding the dispersant in two parts, allows the dispersant to be adsorbed onto the surface of the turquoise blue dye particles, reducing particle agglomeration and improving the slurry refinement efficiency and particle size distribution uniformity.

The invention relates to an NH2-MOF coated SiO2 core-shell type nano composite particle electrorheological fluid and a preparation method thereof. A dispersion phase of the electrorheological fluid is a nano composite particle composed of round cake type anisotropic amino modified MOF and silicon dioxide nano particles coated on the round cake type anisotropic amino modified MOF, and a continuous phase of the electrorheological fluid is dimethyl silicone oil; the preparation process comprises the following steps: firstly, preparing cake-shaped NH2-MOF nano-particles by adopting a hydrothermal method, and then coating silicon dioxide on the cake-shaped NH2-MOF nano-particles by adopting a hydrolysis method, so as to finally prepare the anisotropic NH2-MOF coated SiO2 nano-composite material. The size diameter of the anisotropic NH2-MOF coated SiO2 nano composite particles is 250-350nm, the anti-settling performance of the electrorheological fluid is enhanced by utilizing the porous structure, high porosity and the like of MOF, the asymmetry of a crystal structure is increased by introducing a polar group to improve the polarization capability, and the overall performance of the material is remarkably enhanced by the comprehensive improvement. And particularly, the electrorheological property is outstanding. The drawing shows a relational graph of the shear strength and the shear rate of the NH2-MOF coated SiO2 core-shell type nano composite particle electrorheological fluid.