7results about How to "Facilitate osmotic diffusion" patented technology

The invention provides an ultrahigh-ductility cement-based composite material for ocean engineering and a preparation method of the ultrahigh-ductility cement-based composite material for ocean engineering. The concrete is prepared from the following raw materials in parts by weight: 250 to 500 parts of cement clinker, 400 to 600 parts of fly ash, 200 to 300 parts of mineral powder, 100 to 150 parts of silica fume, 160 to 240 parts of metakaolin, 600 to 900 parts of quartz sand, 10 to 20 parts of organic synthetic fiber, 20 to 30 parts of organic corrosion inhibitor, 180 to 240 parts of water and 1 to 8 parts of water reducing agent. The organic corrosion inhibitor provided by the invention can be combined with chloride ions to form a passive film, so that the corrosion of reinforcing steel bars and the invasion of the chloride ions into concrete are inhibited, and the durability of the concrete is improved; by regulating and controlling the mixing ratio of the four mineral admixtures and the mixing amount of the synthetic fiber component, the concrete can well consider high strength, high ductility, high durability, high flow state and excellent deformation resistance. The ultrahigh-ductility concrete for ocean engineering, which can meet the toughness requirements of high compression resistance, fracture resistance and impact resistance and the requirements of high chloride ion permeation resistance and steel bar corrosion resistance, can be obtained.

According to the carbon mineralization artificial stone based on the solid waste, the solid waste raw material, the aggregate, the defoaming agent, the water reducing agent, the retarder and the additive serve as raw materials, and the prepared carbon mineralization artificial stone is high in carbonization degree and excellent in mechanical strength. The additive prepared by taking an aminoguanidine compound, a silane coupling agent and a diacid compound as raw materials is introduced, so that a substance for filling pores and CO2 gas can be generated in a system, a pore structure is optimized, internal mineralization is realized, and the binding force among the components in the system can be enhanced; therefore, the carbonization degree, the carbon sequestration rate and the mechanical strength of a carbon mineralization product are improved.

The invention discloses a composite carbon molecular sieve and a preparation method thereof, and relates to the technical field of membrane separation. The invention discloses a preparation method of a composite carbon molecular sieve, which comprises the following steps: dipping a porous support in a coating solution, taking out, and drying to obtain a pretreated molecular sieve; carrying out carbonization treatment on the pretreated molecular sieve in an inert gas atmosphere to obtain a composite carbon molecular sieve; the porous support is firstly prepared to serve as a base membrane of the composite carbon molecular sieve, the mechanical strength of the molecular sieve is effectively improved, modified polyamide acid serves as a coating organic matter, the modified polyamide acid is attached to the surface of the porous support through an impregnation method, and the molecular sieve formed after the material is pyrolyzed and carbonized is loose in structure; the aperture adjustment of the molecular sieve is realized, and gas permeation and diffusion are facilitated.

The utility model discloses antibacterial dacron cotton cloth relates to textile technical field, and its technical scheme main points are: the inside layer is close to the side weaving of outer layer and is formed with support strip no.

The preparation method comprises the following steps: cleaning raw materials, frying, boiling at a low temperature, cooling and dipping, placing on a plate, pouring soup, performing vacuum infiltration, quick-freezing and storing a finished product. In the technical scheme provided by the invention, the vinasse marinade prepared from glutinous rice is firstly used for secondary fermentation, the vinasse marinade and the boiled spices are fermented for more than 5 years, and the vinasse residues and the crayfishes are boiled and soaked in low-temperature seasoning soup, so that the crayfishes are good in taste, ruddy in color and pure in vinasse fragrance, the earthy smell of the crayfishes can be effectively removed, and the shelf life is long. By adopting a dipping flavor permeation technology and a vacuum permeation technology, permeation and diffusion of seasoning substances in the crayfish are promoted, and the flavor quality of the crayfish is improved. Different from traditional fragrant grain food, the crayfish is not fermented and is more nutritional and healthy.

The present invention belongs to the technical field of special cement materials. More specifically, it relates to a method for manufacturing oil well cement using magnesium slag. The present invention comprises: raw material preparation: taking 10-20 parts of magnesium slag, 40-50 parts of limestone, 20-30 parts of clay, and 8-10 parts of iron ore by weight, mixing, crushing and refining, screening, and obtaining fine abrasive; mixing the fine abrasive and water in a mass ratio of 3:1-5:1, freezing, and obtaining frozen material; then freezing and pressing the frozen material at a temperature below 0°C and a pressure of 10-15MPa for 10-30min, and then drying the pressed material to remove moisture, and obtaining a dry pressed material; calcining: calcining the dry pressed material at a temperature of 1350-1400°C, cooling, and obtaining a calcined material; grinding: mixing the calcined material, retarder, and gypsum, grinding, and discharging to obtain oil well cement.

The present invention provides a method for preparing a magnetic powder core for high-power power electronic equipment, and belongs to the technical field of magnetic materials. The specific operation is as follows: soak the metal iron powder in a mixed alcohol solution of γ-methacryloxypropyltrimethoxysilane and N-(β-aminoethyl)-γ-aminopropyltrimethoxysilane, then mix the monosilane with silicon oxide powder and disperse them in an ethanol solution, and evenly spray them on the surface of the iron powder with an atomizing device, and through pressing and high-temperature annealing treatment, silicon penetrates into the surface of the iron powder to form a high-resistivity iron-silicon thin layer, while realizing the insulating coating of the iron powder by silicon oxide, thereby simultaneously realizing high saturation magnetization, high resistivity, and low loss in the iron powder core. Compared with the magnetic powder core prepared by the silicon oxide inorganic coating method, the saturation magnetization of the magnetic powder core prepared by the present invention is increased from 1.36T to 1.42T, and the resistivity is increased from 6.345×10 8 μΩ∙cm increased to 7.451×10 10 μΩ∙cm, the loss at 500Hz / 500mT is reduced by 37W / kg.