18results about How to "Reduce electrostatic attraction" patented technology

The invention belongs to the technical field of civil engineering materials, and provides an early-strength high-fluidity geopolymer grouting material and a preparation method thereof. The method comprises the following steps: firstly, carrying out heat treatment and chemical regulation on fly ash and granulated blast furnace slag to generate a pre-reaction phase with high reaction activity, and improving the alkali excitation reaction efficiency; then, by preparing a lubricating particle dispersion liquid and utilizing the synergistic effect of a silane coupling agent and interface lubricating particles, the uniform dispersity of the particles is enhanced; by adding the ionic liquid and the functionalized acylamino polymer, the dissolution and activation of the aluminosilicate are accelerated by utilizing the high polarity, the ion shielding effect and the dissolution enhancing performance of the ionic liquid; meanwhile, the amido polymer inhibits particle aggregation and stabilizes the particle dispersion state through the adsorption effect, the amido polymer and the amido polymer cooperate to form a lubricating layer in the slurry, reduce the viscosity of the slurry and improve the fluidity, and the early strength of the material is further improved by accelerating the generation of a gel phase.

The invention discloses an amphoteric self-supporting single-ion polymer electrolyte diaphragm as well as a preparation method and application thereof. The diaphragm is prepared by physically doping a self-supporting single-ion polymer with an amphoteric ionic compound. The polymer electrolyte provided by the invention has a high-molecular polymer structure, negative ions of the polymer electrolyte are relatively fixed in an electrochemical reaction process, and single-ion conduction of lithium ions can be realized, so that uniform deposition of the lithium ions on the surface of a negative electrode is realized, and formation of lithium dendrites is inhibited. Meanwhile, the doped zwitter-ions can increase the dielectric constant of the electrolyte, so that the overall lithium ion conductivity of the electrolyte diaphragm is improved, all the components of the diaphragm are electrolyte components, an additional binder does not need to be added, and the self-supporting electrolyte diaphragm with qualified mechanical properties can be prepared.

The invention belongs to the field of drug-loaded nanoparticles, and provides a targeted drug-loaded nanoparticle with multiple responsiveness and a preparation method thereof. The targeted drug-loaded nano-particle with multiple responsiveness is prepared from poly (N-isopropylacrylamide-co-acrylic acid-co-N-acryloyloxy succinimide) nanogel with temperature and pH response characteristics, an anti-tumor drug and a folic acid layer capable of specifically targeting a folic acid receptor of a tumor cell, wherein the temperature and pH response characteristics are realized by the poly (N-isopropylacrylamide-co-acrylic acid-co-N-acryloyloxy succinimide) nanogel; the anti-tumor drug is loaded in the polymer network structure of the nanogel to form drug-loaded nanoparticles, the folic acid layer is composed of aminated folic acid molecules, the folic acid layer coats the drug-loaded nanoparticles, and amino groups of the aminated folic acid molecules are grafted on the surfaces of the drug-loaded nanoparticles. According to the invention, the preparation method of the existing chemotherapy nano-drug carrier can be simplified, the controllability of the preparation process is improved, the biocompatibility of the existing chemotherapy nano-drug carrier is improved, and the targeting property of the existing chemotherapy nano-drug carrier is enhanced.

The invention provides a high-inductance copper-iron co-fired inductor which comprises soft magnetic metal powder, a copper conductor and a nanocrystalline strip, the copper conductor and the nanocrystalline strip are vertically connected and buried in the soft magnetic metal powder, and the two ends of the copper conductor extend out of the soft magnetic metal powder; the soft magnetic metal powder comprises mixed powder of gas atomized iron-nickel-molybdenum powder with different particle sizes, a passivating agent, a coating agent and a lubricating agent. The passivating agent is a mixed solution of oxalic acid and nitric acid; the coating agent is an acetone solution of fluorosilicone resin, titanium trifluoride, aluminum trifluoroacetyl pyruvate and nano barium titanate; the lubricant is a mixture of gas-phase aluminum oxide and niobium diselenide; the thickness of the nanocrystalline strip ranges from 1 micrometer to 1.5 micrometers, and the width of the nanocrystalline strip ranges from 2 mm to 4 mm. According to the inductor, the inductance value of the inductor reaches the highest value by utilizing the gas atomization iron-nickel-molybdenum powder with the highest magnetic conductivity in the soft magnetic metal powder, and meanwhile, the gas atomization iron-nickel-molybdenum powder has very low loss and excellent stability, so that the inductor has good loss performance and excellent reliability at the same time.

The invention relates to a cleaning agent used after SiC substrate grinding and a preparation method thereof, and relates to the field of semiconductor cleaning agents, and the cleaning agent is prepared from the following raw materials by mass: 4-8% of an anionic surfactant, 2-6% of a nonionic surfactant, 2-6% of a cleaning auxiliary agent, 8-12% of sodium hydroxide, 2-4% of a bio-based modified antistatic agent, and the balance of water. The preparation method comprises the following steps: heating water, adding sodium hydroxide, stirring, adding the cleaning aid, stirring, adding the premixed anionic surfactant and nonionic surfactant, stirring, adding the bio-based modified antistatic agent, stirring, cooling, and filtering to obtain the cleaning agent for grinding the SiC substrate. The cleaning agent has a good cleaning effect, can effectively remove impurities after grinding, and meets the requirement of the semiconductor industry for high-quality cleaning of SiC wafers.

This invention relates to the field of traditional Chinese medicine processing, and discloses a compound polysaccharide immune-enhancing composition and its preparation method and application. The composition comprises raw materials made from refined Polygonatum sibiricum polysaccharide, refined Dendrobium officinale polysaccharide, refined Lycium barbarum polysaccharide, and mogroside. The polysaccharides are mixed, and mogroside is added in batches with stirring and homogenization. The mixture is then dried under low temperature vacuum and granulated to produce the finished product. Mogroside molecules penetrate into the polysaccharide aggregates and reconstruct hydrogen bonds, establishing steric hindrance and rearranging charge distribution, inhibiting secondary aggregation of polysaccharides during rehydration and improving dissolution rate. Combined with step-by-step feeding and controlled moisture content, the polysaccharide conformation is solidified, preventing moisture absorption and clumping during storage and maintaining the flowability of the finished product. Purification of the polysaccharides reduces steric hindrance interference from impurities such as proteins and lignin, allowing active binding sites to be fully exposed and bind to corresponding receptors on the surface of different immune cells, thus initiating signal transduction pathways.

The invention discloses a scale inhibition system of a coal slurry grey water heat exchanger, which comprises a grey water pool, a pretreatment system, a grey water heat exchanger and a water treatment pool which are sequentially connected through pipelines according to a water flow direction, a return pipeline is connected between an outlet pipeline and an inlet pipeline of the grey water heat exchanger, and a scale inhibition pump is arranged on the return pipeline; the pretreatment system comprises an ion exchange resin device, an ultrasonic wave generating device, an electromagnetic wave generating device and a rotational flow device. The scale inhibition pump and the grey water heat exchanger are connected in parallel, on the premise that inflow water and outflow water flow are not affected, inflow water flow and temperature of the heat exchanger can be effectively adjusted, through cooperation of enhanced heat exchange and a pretreatment system, grey water delivery flow can be greatly increased, continuous operation time of the grey water heat exchanger can be prolonged, and it is guaranteed that the temperature of delivered grey water reaches the standard; the effective scale inhibition effect is achieved.

The utility model discloses an accelerometer belongs to acceleration measurement technical field, and the accelerometer includes: outer frame and mass block, and the outer frame is connected in substrate, and the substrate is equipped with fixed anchor point, and the mass block is located the inside of outer frame and is elastically connected to fixed anchor point with substrate through elastic part, and the mass block can move along the acceleration direction to be measured, and the mass block is suitable for along the first axis symmetry and along the second axis asymmetry, and the first axis extends along the first direction, and the second axis extends along the second direction, one of mass block and outer frame is equipped with stopper, and the interval between the other of mass block and outer frame and stopper is less than the interval between the mass block and outer frame of the area outside stopper. The utility model embodiment adopts and sets up stopper in one of mass block and outer frame, thereby reduces the relative area of the close part between mass block and outer frame, reduces the electrostatic attraction, reduces the deviation distance simultaneously, and then improves the accuracy of accelerometer measurement acceleration.

The utility model relates to the technical field of packaging paper feeding and cutting, and discloses a paper stirring piece separating structure of chain type transmission paper feeding equipment, which comprises a separating plate fixed on a rack, a plurality of air outlet grooves are uniformly arranged at the upper part of the separating plate, a communicating pipe is arranged on one side of each air outlet groove, the communicating pipe is connected with an air flow cleaner, and the air flow cleaner is connected with an air inlet pipe of the chain type transmission paper feeding equipment. And a stripping plate is arranged at the upper part of the communicating pipe and is used for stripping the adsorbed paper. According to the utility model, a'mechanical + pneumatic 'double-acting separation mode is formed through sequential cooperation of stripping elastic sheet mechanical triggering and high-pressure airflow, the problem of electrostatic adsorption of multiple pieces of paper is effectively solved, the separation efficiency is improved by more than 40%, the airflow cleaner directionally sprays compressed air through the air outlet groove, static electricity on the surface of the paper is neutralized while a physical isolation layer is formed, and the separation efficiency is improved. And the electrostatic adsorption force is reduced to 0.5 N or below, so that secondary adhesion is fundamentally avoided.

The present application belongs to the technical field of oil and gas exploitation, and relates to a nano desorption agent for gas well and a preparation method thereof. The desorption agent uses special pretreated biochar as a core carrier, loads specific proportion of bimetallic oxide nanoparticles, and is supplemented with an environmentally friendly surfactant for surface modification. Through the synergistic effect of nano size effect, catalysis / electron transfer effect of metal oxide, physical adsorption and pore transport effect of biochar, and interfacial tension reduction effect of surfactant, the adsorption energy barrier of gas molecules such as methane on the rock surface is significantly reduced, and the efficient desorption is promoted. At the same time, all components and preparation processes are environmentally friendly and harmless to human body.

The invention belongs to the technical field of nano-antibacterial materials, and provides a micromolecule coated nano-zinc oxide monodisperse antibacterial colloid, the colloid comprises nano-zinc oxide powder, a dispersant and water, the total mass ratio of the nano-zinc oxide powder to the dispersant is (1: 1)-(10: 1), the mass ratio of the nano-zinc oxide powder to the water is (1: 100)-(1: 10000), the total mass ratio of the nano-zinc oxide powder to the dispersant is (1: 1)-(1: 10000), and the mass ratio of the nano-zinc oxide powder to the water is (1: 100)-(1: 10000). The diameter of the nano zinc oxide particles in the colloid is 60 nm to 100 nm. According to the invention, the micro-molecular dispersant is introduced to modify the nano-zinc oxide, and the total mass ratio of the nano-zinc oxide powder to the dispersant and the mass ratio of the nano-zinc oxide powder to water are optimized, so that the nano-zinc oxide can be completely coated with the nano-zinc oxide powder by micro-molecules, and the surface energy of the nano-zinc oxide and Van der Waals force and electrostatic attraction among particles are reduced; and the dispersion performance of the nano-zinc oxide in water can be improved.

The invention relates to a high-entropy O3 / P2 mixed-phase layered oxide positive electrode material of a sodium ion battery and a preparation method and application of the high-entropy O3 / P2 mixed-phase layered oxide positive electrode material. The chemical formula of the material is NaxKyNiaMnbFecMdO2, and M is selected from one or more of Ti, Mg, Cu, Al, Sn, Zn and Li; 0.75 < = x < = 0.9, 0 < y < = 0.03, 0 < a < = 0.3, 0 < b < = 0.5, 0 < c < = 0.2, 0 < d < = 0.1, and a + b + c + d = 1; the values of x, y, a, b, c and d meet the charge balance of the chemical formula, and the value of d is the sum of element atomic ratios in M. Compared with traditional wet processes such as coprecipitation, the method is simpler and more efficient, large-scale industrial production is easier to realize, and powerful technical support is provided for the commercialization process of the sodium ion battery positive electrode material.

The utility model discloses a kind of boron powder efficient stirring mixing devices, including mixing tank, the upper end middle part of the mixing tank is connected with stirring equipment, the upper end side of the mixing tank is connected with spray tank, the lower end of the spray tank is connected with conical conveying cover, the lower end of the conical conveying cover extends into mixing tank, one week of the spray tank is connected with four spray pipes at equal intervals, the upper end of the spray pipe is connected with conveying pipeline.The utility model can effectively solve the problem that boron powder particle agglomerates, barrel wall adheres and deposits bottom, make boron powder and additive, rare earth atomized liquid fully mix, greatly improve the uniformity of mixing, to improve the quality and performance of product, while stirring equipment further strengthens surface coating effect, reduces electrostatic adsorption, so that additive and rare earth atomized liquid can better adhere to boron powder particle surface, improve the stability and functionality of boron powder, reduce the waste of raw material, improve the utilization of raw material.

The invention discloses a laundry detergent based on a polyoxyethylene block Gemini quaternary ammonium salt bactericide and a preparation method thereof, and belongs to the technical field of wash supplies. The laundry detergent disclosed by the invention is prepared from the following components in percentage by mass: 20 to 25 percent of anionic surfactant, 1 to 5 percent of nonionic surfactant, 3 to 7 percent of polyoxyethylene block Gemini quaternary ammonium salt bactericide, 1 to 4 percent of viscosity modifier, 0.1 to 0.5 percent of stabilizer, 0.2 to 1 percent of enzyme, 0.05 to 0.2 percent of preservative, 0.1 to 2 percent of functional aid, 0.1 to 1.5 percent of essence and the balance of deionized water. A side-chain polyoxyethylene chain segment is embedded into a hydrophilic head group of the quaternary ammonium salt bactericide, and electrostatic attraction with an anionic surfactant is reduced through steric hindrance, so that the quaternary ammonium salt bactericide stably coexists with the anionic surfactant; the technical problem that an existing laundry detergent taking an anionic surfactant as a main active matter is difficult to realize triangular balance of sterilization, decontamination and stability is solved.

The utility model relates to a comprehensive physical water treatment device which comprises a barrel with a fluid inlet, a fluid outlet, an exhaust port and a drain outlet, and a copper filter element and an electrode bar are arranged in the barrel; the copper filter element is formed by longitudinally and tightly arranging a plurality of filter element units in a cylinder in parallel; a sparse area for arranging the filter element unit is arranged in the cylinder body close to the fluid outlet, and an electrode bar is arranged in the sparse area; each filter element unit comprises a central metal tube, a spiral cylindrical copper wire body, a plurality of longitudinal connecting copper wires and a plurality of radial connecting copper wires; the spiral cylindrical copper wire body is concentrically arranged outside the central metal tube; a plurality of longitudinal connecting copper wires are longitudinally connected and arranged on the spiral cylindrical copper wire body, and the central metal tube is connected with the spiral cylindrical copper wire body or the longitudinal connecting copper wires through a plurality of radial connecting copper wires. The anti-fouling and anti-scaling sewage discharging and exhausting device not only can prevent fouling and scale, but also can improve the sewage discharging and exhausting efficiency, and meanwhile can reduce breeding of bacteria and algae from the source.

The invention relates to the technical field of bauxite treatment, in particular to a method for synergistically dissolving out aluminum ions and gallium ions of bauxite. The method comprises the steps that a composite additive, bauxite particles and circulating mother liquor are ground, and raw material ore pulp is obtained; wherein the composite additive comprises an alkaline earth metal compound and an amidoxime cluster compound; the raw material ore pulp is subjected to pre-desiliconization treatment, and desiliconized ore pulp is obtained; and the desilicication ore pulp is subjected to dissolution treatment, and dissolution ore pulp is obtained. According to the method, through the synergistic effect between the alkaline earth metal compound and the amidoxime cluster compound of the composite additive, the physical properties of the bauxite particles are changed by utilizing the alkaline earth metal compound, and the amidoxime cluster compound is responsible for efficiently capturing and transferring gallium and aluminum in the bauxite particles; therefore, the relative dissolution rate of gallium in the bauxite can be effectively increased to 73.0% or above, and the relative dissolution rate of aluminum in the bauxite can be effectively increased to 95% or above.

The present invention discloses a method for preparing a self-cleaning environmentally friendly coating material, which relates to the technical field of coating material preparation, and includes: a stirring barrel; a titanium dioxide suspension liquid supply mechanism, wherein the titanium dioxide suspension liquid supply mechanism is installed on the outside of the stirring barrel, and the output end is connected to the bottom of the stirring barrel; a stirring mechanism, wherein the stirring mechanism includes a motor, and the motor is installed on the top of the stirring barrel. The present invention sets a stirring mechanism, and the output end of the motor drives the hollow rotating rod to rotate when the motor is working. The rotation of the hollow rotating rod directly drives the second blade to rotate, and the first blade is driven to rotate through the transmission assembly. The first blade and the second blade rotate in the same direction at different speeds. Compared with the rotation of a single blade, a complex fluid flow pattern can be formed when the two blades rotate in the same direction at different speeds, and compared with the reverse rotation, the flow pattern is more orderly, which helps to reduce the friction and collision between materials.

The invention provides a dispersion extraction auxiliary agent for micro / nano plastic in soil and application of the dispersion extraction auxiliary agent, and belongs to the technical field of pollutant detection and treatment. The dispersion extraction auxiliary agent provided by the invention is prepared from the following preparation raw materials in percentage by mass: 1 to 30 percent of polyphosphate, 1 to 10 percent of sodium percarbonate, 0 to 1 percent of surfactant and 59 to 98 percent of water, the surface active agent is a nonionic surface active agent or a zwitterionic surface active agent. According to the invention, the polyphosphate dispersant is adopted to disperse the soil aggregate and release the micro / nano plastic wrapped by the soil aggregate; the sodium percarbonate solid oxidizing agent can pre-oxidize organic substances in soil, improve the dispersion effect on soil aggregates and release micro / nano plastic wrapped in the soil aggregates; the zwitterionic surfactant or the nonionic surfactant can reduce the electrostatic adsorption force between the micro / nano plastic and the vessel in the extraction process of the micro / nano plastic in the soil.