5results about How to "Effective suspension" patented technology

The application provides a high-stability lignosulfonate-containing aqueous dye inkjet ink and a preparation method thereof, and belongs to the technical field of inkjet inks; the application constructs a repairable dynamic network through synergistic action: anchor copolymer functionalizes the surfaces of particles such as mica by using dopamine units, and the main units provide diol reaction sites; the bridging copolymer connects the particles into a three-dimensional structure by forming reversible borate ester chemical bonds with the diol sites through boronic acid groups; the synergistic action of the two suspends the particles through a gel structure during standing, and ensures long-term storage stability; during printing, the network collapses under shear force, and the viscosity sharply decreases to ensure smooth jet flow; after printing, the network self-repairs, and the viscosity is recovered to control droplet spreading, and finally, the unity of high stability and high printing performance is achieved.

The application provides a shield balancing mud for a shield machine and a preparation method thereof, and belongs to the field of shield tunnel engineering. The shield balancing mud comprises the following raw materials: modified clay base material: 100 parts, composite flocculating agent: 6-15 parts, tackifying water-retaining agent: 1.5-4 parts, water-dispersing agent: 0.5-2.5 parts, organic crosslinking agent: 0.3-1.2 parts, thixotropy adjusting agent: 0.2-1.5 parts, and pH adjusting agent: 0.5-4 parts. In the application, the high-activity modified clay is used as a skeleton, the inorganic flocculation network is used to provide a dense structure resistant to water erosion, the borax-cellulose reversible crosslinking is used to realize the thixotropic property, the polyacrylamide is used to enhance the water-dispersing resistance, and the thixotropy adjusting agent is used to balance the dispersion and flocculation, so that the mud material simultaneously has excellent water-dispersing resistance and reversible thixotropy in a high-water-pressure water-rich stratum.

The utility model relates to the technical field of S-hook devices, and discloses an anti-drop type contact network bearing wire erection S-hook device which comprises an S-hook body, a first optical shaft and a rebound assembly, the rebound assembly is arranged in the S-hook body, the first optical shaft is rotatably connected in the S-hook body, a first baffle is fixedly connected to the outside of the first optical shaft, and a second baffle is fixedly connected to the outside of the second optical shaft. A sliding rod is slidably connected into the first baffle, a sliding block is fixedly connected to the outside of the sliding rod, a spring is fixedly connected between the sliding block and the first baffle, and a support is fixedly connected to the outside of the sliding rod. By rotating the first baffle, the first baffle and the S-shaped hook body are fixed through the clamping shafts on the two sides of the first baffle, the end, hung on a carrier cable, of the S-shaped hook is limited and prevented from falling off, and therefore hanging is effectively carried out, the stability during hanging is improved, the working efficiency of overhead line system carrier wire erecting is improved, and the practicability of the S-shaped hook is improved; and the S-shaped hook body is effectively prevented from falling off due to mistaken touch of a worker.

This invention discloses a fracturing proppant with a hydrophobic aerogel coating that achieves slow settling, its preparation method, and its application, relating to the field of oil and gas well enhancement technology. A hydrophobic silica aerogel is prepared by introducing methyl-rich trimethylmethoxysilane. Before curing, the gel liquid is sprayed onto the proppant surface using fluidized bed spraying. After post-treatment, a hydrophobically modified aerogel is formed on the proppant surface. Due to the special papillary structure formed by the hydrophobic silica aerogel on the proppant surface, a lotus leaf effect is generated, thus forming a gas film. This gas film and its porous structure ultimately form a fracturing proppant that can be freely suspended in water, achieving slow settling through a hydrophobic aerogel coating. The proppant coated with the gas film and aerogel can be freely suspended in water, exhibiting excellent suspension and stability, reducing the requirements for fluid viscoelasticity, eliminating the need for large amounts of organic thickeners, reducing damage to the reservoir, and the preparation process is simple, low-cost, and environmentally friendly.

The application relates to an automatic slurry feeding device and a screen printing machine, the automatic slurry feeding device comprising a slurry storage tank provided with a slurry outlet hole and an air inlet hole at the top; an air source pipeline connected with an air source at one end and connected with the inside of the slurry storage tank through the air inlet hole at the other end; a stirrer arranged in the slurry storage tank; a slurry feeding pipeline with one end extending into the slurry storage tank through the slurry outlet hole and the other end used for conveying slurry to a printing mechanism; and a filter arranged on the slurry feeding pipeline and used for filtering large-particle nickel powder in the slurry. The application can effectively suspend the large-particle nickel powder, slow down the sedimentation speed of the large-particle nickel powder in the slurry storage tank and ensure the uniformity of the internal electrode slurry by arranging the stirrer in the slurry storage tank to uniformly mix different components in the internal electrode slurry. The application further arranges the filter in the slurry feeding pipeline to block the large-particle nickel powder, thereby enhancing the consistency of the printed internal electrode slurry, reducing the risk of slurry agglomeration of the electrode after printing of the MLCC product and improving the quality of the MLCC product.