14results about How to "Reduce agglomeration" patented technology

The invention relates to the technical field of powder surface modification and functional modification, in particular to surface-treated silver-containing conductive powder and a preparation method and application thereof.The preparation method comprises the steps that an alcohol solvent, water, a silane coupling agent and an organic acid catalyst are mixed, obtained hydrolysate is mixed with the silver-containing conductive powder, and modified conductive powder is obtained; and mixing stearic acid with an organic solvent, and mixing the obtained coating liquid with the modified conductive powder to obtain the surface-treated silver-containing conductive powder. Different kinds of silane coupling agents are combined on the surface of the silver-containing conductive powder in a chemical bond mode through wet modification so as to adapt to different base material systems; stearic acid is secondarily coated on the surface of the modified conductive powder, so that the dispersity of the silver-containing conductive powder in each system is greatly improved, and the agglomeration of the silver-containing conductive powder is reduced; and moreover, through the treatment method and process, powder agglomeration caused by capillary action is reduced, so that surface treatment of the silver-containing conductive powder from submicron to micron is realized.

The invention relates to the technical field of lithium batteries, and discloses inorganic compound slurry and lithium battery positive electrode slurry containing the same. The inorganic compound slurry comprises inorganic compound solid particles, a dispersing agent A and a dispersing agent B, wherein the dispersing agent A is selected from one or more of amine compounds containing ether chains; the dispersing agent B is selected from one or more of phosphoric acid compounds containing ether chains. The inorganic compound slurry contains the dispersing agent A and the dispersing agent B at the same time, the dispersing agent A and the dispersing agent B are compounded, the synergistic modification effect on the surfaces of inorganic compound solid particles is achieved, and when the inorganic compound slurry is mixed into the lithium battery positive electrode slurry, the agglomeration effect between the solid particles can be reduced; and meanwhile, the problem that the viscosity is sharply increased after the inorganic compound slurry is mixed into the positive electrode slurry is also solved.

The application relates to the technical field of wastewater denitrification, and discloses a composite carrier as well as a preparation method and application thereof. The composite carrier comprises porous molybdenum disulfide, the porous structure of the molybdenum disulfide in-situ grows zirconium metal organic frameworks, and the surface of the molybdenum disulfide is loaded with graphene. The composite carrier can not only serve as a place for denitrification of microorganisms, but also can improve the denitrification efficiency of the microorganisms.

The utility model provides a quartz crucible and a crystal pulling device, the quartz crucible comprises a crucible main body, the crucible main body comprises a bubble layer and a transparent layer, and the bubble layer is arranged on the outer side of the transparent layer; the top of the crucible main body is provided with a camber angle structure, the camber angle structure is composed of the top of the bubble layer and the top of the transparent layer, and the camber angle structure obliquely extends towards the lower portion of the outer side from the edge of an opening of the crucible main body. The top of the quartz crucible is arranged to be of the camber angle structure, in the repeated feeding process, the gathering amount of silicon particles on the top of the quartz crucible can be reduced, the risk that the silicon particles on the top of the quartz crucible fall into the quartz crucible, and consequently melt crystallization or single crystal line breakage is caused is reduced, and the yield of a single crystal silicon rod is increased.

The present application relates to the field of magnesium phosphate cement-based materials, and specifically discloses a preparation method of a waterproof and anti-permeation magnesium phosphate cement-based material and application thereof. The preparation method comprises the following steps: taking 80-100 parts by weight of magnesium phosphate cement, 5-8 parts by weight of a setting and hardening regulator, 10-14 parts by weight of a hydrophobic agent prepared by the present application, 7-10 parts by weight of modified graphene oxide and 30-40 parts by weight of active slag powder. After the above raw materials are uniformly mixed, 25-32 parts by weight of mixing water is added, and a magnesium phosphate cement-based material is obtained. The present application takes magnesium phosphate cement as the main component, and adds the hydrophobic agent, modified graphene oxide and active slag powder, so that the problems of insufficient waterproofness and anti-chloride ion erosion of the magnesium phosphate cement coating are overcome, and the magnesium phosphate cement-based material has good crack resistance and secondary protection capability, and can effectively resist the erosion of water and chloride ions.