5results about How to "Decrease work of adhesion" patented technology

The invention discloses a thick oil emulsifying viscosity reducer composition which comprises alkyl amide propyl hydroxy sulfobetaine, a quaternary ammonium salt compound containing tertiary amine and hydroxyl and water, and the content of the alkyl amide propyl hydroxy sulfobetaine is 10%-40%, preferably 25%-30%, the content of the quaternary ammonium salt compound containing tertiary amine and hydroxyl is 10%-40%, preferably 25%-30%, and the content of the quaternary ammonium salt compound containing tertiary amine and hydroxyl is 10%-40%. 3%-15%, preferably 8%-10%, of a quaternary ammonium salt compound containing tertiary amine and hydroxyl. The thick oil emulsifying viscosity reducer with strong foaming performance provided by the invention can emulsify thick oil to form an oil-in-water emulsion, so that the viscosity of the thick oil is obviously reduced, and the fluidity of the thick oil is improved; and the viscosity reducer has good foaming performance and foam stabilizing performance, can effectively block high-permeability pore channels, reduces the water channeling degree, and improves the sweep efficiency of the viscosity reducer, thereby improving the recovery rate of heavy oil.

The invention relates to the field of refining agent preparation, and discloses a preparation method of a refining agent for smelting an aluminum alloy profile, and the refining agent for smelting comprises magnesium carbonate, potassium carbonate, magnesium fluoride, aluminum fluoride, an additive, potassium fluosilicate and potassium fluoroaluminate. The preparation method comprises the following steps: mixing the components, drying and dehydrating, molding by a press, crushing and granulating, and performing multi-stage screening to obtain the refining agent for smelting. The additive is formed by mixing calcium nitride and modified silicon nitride according to the mass ratio of 1: (1-2); the modified silicon nitride is prepared by grafting silicon tetrachloride with cerium chloride, magnesium chloride and n-propylamine, generating silicon nitride in situ in a pyrolysis process, carrying out spark plasma sintering to obtain silicon nitride ceramic, and coating the surface of the silicon nitride ceramic with aluminum powder by taking sodium water glass as an adhesive. And impurities and oxide layers in the aluminum alloy can be effectively removed, and the quality and purity of the aluminum alloy are improved.

The invention discloses a preparation method of a basin-type insulator surface fluorination modified coating, and the prepared fluorine-containing composite coating has a surface tangential field intensity and interface charge regulation effect, and can improve the along-surface insulation strength and corona erosion resistance at the same time. Aiming at the defect problem of foreign matters such as metal particles and metal dust existing in the direct current pipeline, the fluorine-containing coating has the characteristics of low surface energy and self-cleaning, and also provides a solution thought for inhibiting dust adsorption.

The present invention provides an oil displacement agent having the functions of reducing tension and adhesion work, and a design method and application thereof, belonging to the technical field of oil and gas field development. The present invention first establishes a heavy oil molecular simulation model based on the properties of heavy oil in the target oil reservoir, and then uses molecular dynamics to select lipophilic and hydrophilic compounds, and then designs an oil displacement agent. The method of the present invention greatly reduces the experimental workload and experimental cost, the required period for determining the oil displacement agent is short, and the crude oil specificity of the oil displacement agent is enhanced; the designed oil displacement agent can effectively take into account the performance of reducing adhesion work and oil-water interfacial tension, and greatly improve the recovery rate of crude oil.

The present application relates to a kind of polyolefin heat-seal film and its preparation method.The heat-seal film includes sequentially stacked in the direction away from content and the raw material glass transition temperature gradient is not less than 10 ℃ heat-seal film, transition film and connecting film.Heat-seal film is made of the ethylene-based polyolefin elastomer of specific density and melt flow rate and plastic body, preferably adding end silane group end polyethylene.Preparation method uses multiple extruders co-extrusion, reverse film blowing process molding, and the connecting layer is carried out corona treatment and temperature control winding.The structure design cooperates specific raw material and process, realizes the low-temperature heat-seal performance of sealing temperature as low as 70-80 ℃, simultaneously, after 7 days ripening at 50 ℃, the unwinding force ratio is not greater than 1.5, effectively solve the problem of low-temperature heat-seal strength deficiency and film layer adhesion, with good mechanical strength and thermal stability.