33results about How to "Achieve reunion" patented technology

The invention relates to a polymer composite material with a rough surface, a nano-carbon material, a preparation method and an application. By mixing phenolic compounds, carbonyl compounds, amino compounds and colloidal template solutions, sequential polymerization is carried out by using the kinetic differences of polycondensation reaction, Schiff base reaction and Mannich reaction at the interface of micelles to generate nanomaterials on the surface or edge of nanomaterials. Islands or nanoparticles, thus building a rough structure on the surface of nanomaterials. The method does not require additional etching and deposition processes, and the process is simple and controllable. The adsorbent prepared by the present invention can realize rapid diffusion of gas, and the diffusion rate is 5-10 times that of commercial adsorbents; the catalyst carrier prepared by the present invention can anchor metal active particles and inhibit active components under high temperature conditions Migration and agglomeration effectively improve the stability of the catalyst.

The invention discloses a charged magnetic hydrophobic material and a preparation method and application thereof in separation of micro-fine-particle minerals. The material includes magnetic particlesand a metal organic complex loaded on the surface, has strong magnetism, is positively charged on the surface, and has high electrostatic adsorption capacity for anions and high physical adsorption performance for hydrophobic micro-fine-particle minerals, and therefore, after micro-fine-particle minerals in ore pulp are subjected to surface hydrophobic and anion modification, the micro-fine-particle minerals can be adsorbed and agglomerated by utilizing the material, then the micro-fine-particle minerals are efficiently separated from gangue minerals through magnetic separation, thus solvinga difficult problem of separation and purification of ultrafine minerals. A preparation process of the charged magnetic hydrophobic material is simple and cheap and meets industrial production requirements.

The invention provides a method for using microorganisms to induce precipitation of calcium carbonate. The method is to mix the bacterial suspension with the calcium reaction solution to obtain the total gel solution, and add sodium montmorillonite to the gel solution to precipitate calcium carbonate; the mass percentage of the sodium montmorillonite in the total gel solution is 0.25%. ~1%. The present invention accelerates the precipitation of calcium ions through the addition of sodium montmorillonite, under the condition of interaction between sodium montmorillonite, reaction solution and urea, and enables calcium ions to achieve complete precipitation, which significantly improves the The efficiency of the reaction has greater practical application value; and under the condition of more reaction liquid, the reaction can be carried out forward, the calcium ions can be completely precipitated, and the precipitation amount of calcium carbonate in the reaction can be obviously increased.

The invention discloses a halogen-free fire-retardant polyphenyl ether compound and a method for preparing the same, and belongs to the field of macromolecular materials and formation processing of macromolecular materials. The halogen-free fire-retardant polyphenyl ether compound comprises the following components in percentage by weight: 50 to 80 percent of polyphenyl ether resin, 10 to 30 percent of polystyrene resin and 5 to 25 percent of toughening agent, a fire retardant and an antioxidant; the previous three components account for 100 percent of the weight of the halogen-free fire-retardant polyphenyl ether compound; and the amount of the fire retardant is 5 to 20 percent based on the total weight of the three kinds of components, and the amount of the antioxidant is 0.1 to 0.5 percent based on the total weight of the three kinds of components. The preparation method comprises the following steps of: mixing all components in a ratio, performing melt blending and extrusion of the mixed materials in a double-screw extruder to obtain compound melt, and performing bracing cooling, granulation, screening and drying of the extruded compound melt to obtain the finished product. For the compound of the invention, the melt index reaches over 30g / 10min(280 DEG C, 5kg force), the injection formation of the thin wall spline, which is 0.8mm in thickness, is realized, and the fire retardant performance reaches the UL94V-0 grade and no dropping atmosphere occurs.

The invention relates to a high-toughness and wear-resistant polycrystalline diamond composite sheet and a preparation method thereof, comprising a cemented carbide substrate and Si which are sequentially arranged on the cemented carbide substrate 3 N 4 Coating layer, powder transition layer and polycrystalline diamond layer; the polycrystalline diamond layer is composed of the following raw materials in weight percentage: carbon nanotube coated diamond powder 95-98%, graphene 0.1-0.3%, carbon fiber 0.1% ~0.2% and binder 1.8~4.5%. The present invention adopts carbon nanotube coated diamond powder with dual characteristics of diamond and carbon nanotube to deposit Si on the surface of cemented carbide substrate. 3 N 4 The coating and the powder transition layer between the coating and the polycrystalline diamond layer greatly enhance the bonding strength between the two while ensuring the excellent performance of the polycrystalline diamond layer, making it wear-resistant and excellent impact toughness.