31results about How to "Good dispersion system" patented technology

The invention discloses a method for preparing dispersible ultra-fine silicon dioxide. The method is characterized by comprising the following steps of: adding a liquid surface modifier into a precipitated silicon dioxide filter cake raw material; coating the surfaces of silicon dioxide particles in the precipitated silicon dioxide filter cake to form coating liquid by using the liquid surface modifier with strong stirring; and drying and activating the coating liquid to prepare a dispersible ultra-fine silicon dioxide powder product, wherein the surface modifier accounts for 1 to 50 percent of the mass of the silicon dioxide of the precipitated silicon dioxide filter cake. Experiment results show that: according to an SEM image of the dispersible ultra-fine silicon dioxide dispersed in an organic medium, the particle sizes of silicon dioxide particles are between 100 nm and 10 mu m; and the particle sizes of the silicon particles are between 100 and 400 nm and are distributed uniformly when a boric acid ester coupling agent is adopted.

The invention discloses a method for producing an organic electroluminescence device. The method comprises the followings steps: frirstly, conducting polymer or conducting polymer nano-particle composite materials are formed on the anode of a device, and are used as the hole injection layers of the device; and secondly, other functional layers and membrane electrodes of the device are produced. The conducting polymers in the hole injection layers include conducting polymers and nano-particles thereof, and the device has the characteristics of high electrical conductivity and good membrane planeness. The method can not only be used for producing the organic electroluminescence device with the advantages of high luminous efficiency and long service life, but also can be applied to the fields of backlights, luminance light panels, and the like for color LED display.

The invention belongs to the technical field of environment-friendly materials, and particularly relates to a preparation method of nanometer titanium dioxide. The preparation method comprises the following steps: 1, adding n-butyl titanate into absolute ethanol, then adding a dispersing agent, ultrasonically dispersing till complete dissolution to obtain n-butyl titanate alcohol dispersion; 2, adding a polymer surfactant into distilled water, uniformly stirring till complete dissolution to obtain a dropping solution; 3, slowly dropwise adding the dropping solution into the n-butyl titanate alcohol solution, sealing, slightly heating while stirring for 1-3 hours to obtain a suspension; 4, placing the suspension in a reaction kettle, performing a vacuum distillation reaction for 1-3h, cooling, then filtering at low temperature to obtain a wrapped titanium dioxide precipitate; 5, adding the wrapped titanium dioxide precipitate into an aqueous ethanol solution, performing an ultrasonic reaction for 10-20min, then taking and drying at a high temperature to obtain the nanometer titanium dioxide. Through hydrolysis of the n-butyl titanate, and by virtue of the dual action of polyvinylpyrrolidone and sodium lauryl sulfate, a good dispersion system can be formed, so that agglomeration of titanium dioxide is prevented.

The invention discloses an MXene and carbon nanotube synergistically modified polyurethane anti-corrosion coating as well as a preparation method and a construction process thereof, and relates to the field of anti-corrosion coatings. Comprising the following steps: S1, taking MXene nanosheets, and adding a silane coupling agent for modification to obtain functionalized MXene nanosheets; s2, dispersing the functionalized MXene nanosheets and the aminated carbon nanotubes in deionized water, and carrying out ultrasonic treatment until the functionalized MXene nanosheets and the aminated carbon nanotubes are uniformly dispersed, so as to obtain A-MXene/AMCNT dispersion liquid; and S3, adding the A-MXene/AMCNT dispersion liquid into waterborne polyurethane, and uniformly stirring, so as to obtain the MXene and carbon nanotube synergistically modified polyurethane anticorrosive coating. According to the preparation method disclosed by the invention, the MXene nanosheet can have good compatibility and relatively strong interface interaction with the WPU substrate, so that the MXene and the carbon nanotubes of the coating are uniformly dispersed in the WPU substrate, and the coating has excellent corrosion resistance and mechanical properties.

The invention provides an insulating coating for high-voltage electrical equipment and a preparation method thereof. The insulating coating comprises the following components: a fluorosiloxane polymer, nano-silica, composite modified resin, an aniline monomer, organic acid, polyvinyl alcohol, an oxidant, filler, a curing agent, a solvent and water. The coating provided by the invention has excellent insulation performance, strong hydrophobicity, large wetting angle and low adhesion to dust and oil pollution, realizes low adhesion and non-penetration to pollutants such as water, steam and ash,and avoids the adverse effects of such substances on corona suppression, insulation, corrosion and so on.

The invention relates to a compound propelling system for a Dermlin skin dressing, belonging to the technical field of aerosols. The compound propelling system substantially consists of a propellant and/or a cosolvent, a dispersant or a compatibilizer as well as a disinfectant and is characterized in that the propellant is liquid nitrogen or liquid carbon dioxide; the cosolvent, the dispersant or the compatibilizer is isopentane or cyclopentane; the disinfectant is bromogeramine, 2% glutaraldehyde disinfectant or 0.5% o-phthalaldehyde disinfectant; and the emulsifier is tween-80. The compound propelling system is wide in application range, good in safety and high in volatile speed, does not contain Freon, and can realize disinfection.

The invention provides a high-temperature-resistant composite antibacterial agent and a preparation method thereof. The composite antibacterial agent is prepared from the following components: chitin,a chitosan solution, a zinc lactate solution, a starch solution, a sodium hydroxide solution, a hydrochloric acid solution, an enzymatic hydrolysate, ethyl acetate, a dopamine solution, calcium oxide, a silver nitrate solution and deionized water. The prepared antibacterial agent is high in antibacterial efficiency and resistant to high temperature, the preparation method is simple and low in cost, the particle size of the antibacterial agent is uniform, no agglomeration phenomenon occurs, and the antibacterial agent has excellent antibacterial property.

The invention provides a high-efficiency solar heat absorbing material and a preparation method thereof. The high-efficiency solar heat absorbing material is prepared from organosilicone resin, graphene, carbon fibers, butyl acrylate, hydroxylated linseed oil, sodium lauryl sulfate, nano-powder, metal nitrate, a curing agent, a light absorbing agent, a film former, polyethylene glycol, an organicsolvent and a polyether modified silicone oil defoamer. The heat absorbing material has excellent solar energy absorption performances, utilizes a heat conductive material having photocatalytic migration properties, increases a solar energy absorption range and the heat conduction performance and has a long service life. The preparation method has mild reaction process conditions, realizes a low production cost and is suitable for industrial large-scale production.

The invention relates to the field of textile materials, and particularly discloses an antibacterial fabric for a sofa cushion and a production process of the antibacterial fabric. An antibacterial coating layer comprises the following substances in parts by weight of 45-50 parts of deionized water, 3-5 parts of chitosan and 6-8 parts of modified antibacterial particles; and the modified antibacterial particles are titanium dioxide particles of 200 to 300 meshes. The titanium dioxide particles are adopted as the main component of an antibacterial agent, on one hand, the active centers of the titanium dioxide particles can absorb energy of the environment and inhibit or kill bacteria, so that the antibacterial performance is achieved, and on the other hand, titanium dioxide serves as an opacifying agent, ultraviolet light can be effectively absorbed, the aging reaction of the ultraviolet light on the surface of a material is reduced, and therefore, the antibacterial durability of the fabric is effectively improved.

The invention disclose an environment-friendly guiding material. The environment-friendly guiding material comprises, by weight, 28 to 30 parts of kaolin pulp fine material, 13 to 15 parts of polyethylene resin, 13 to 15 parts of phenolic resin, 10 to 13 parts of magnesium oxide, 16 to 18 parts of fly ash, 10 to 14 parts of ceramic powder, 10 to 14 parts of gypsum powder, 12 to 17 parts of wood chip, 16 to 21 parts of vegetable fiber, 8 to 10 parts of polyethylene glycol, 12 to 15 parts of a toughening filling material, 9 to 11 parts of an anti-oxidant, 3 to 6 parts of an expanding aid, and 13to 15 parts of water. A preparation method comprises following steps: a, fly ash, gypsum powder, wood chip, and water are mixed, an obtained mixture is introduced into a material mixing machine for uniform stirring, kaolin pulp fine material and the expanding aid are added, an obtained mixed material is heated to 72 to 74 DEG C, is stirred for 16 to 18min at a rotating speed of 200 to 220r/min, and is cooled to normal temperature so as to obtain a mixture 1. The preparation method is simple; deformation is not easily caused under pressing; a plurality of domestic waste and industrial waste are adopted; low carbon green environment protection is achieved; the environment-friendly guiding material can be widely used in the field of building material; the using rate is increased; the obtained environment-friendly guiding material is light in mass, high in compression resistance, and excellent in sound insulation thermal insulation effect.

The invention provides an environmental-friendly material for decoration and a preparation method thereof. The environmental-friendly material is prepared from the following ingredients of diatom ooze, epoxy resin, modified chabazite powder, modified acrylic microemulsion, solid filling materials, seaweed gel, cellulose hydroxypropyl methyl ether, polyethylene glycol, ester solvents initiators, additives and deionized water. The prepared paint is green, and realizes the environment protection and environmental-friendly effects; meanwhile, excellent weather resistance, chemical resistance and wear resistance are realized; the adhesion power of coating substrates is good; the preparation process is simple; the operation is easy; the cost is low; the environmental-friendly material can be widely applied to industries of decoration, communication lines, fan blades, high-voltage cables and the like.

The invention provides a high-strength quick aluminized film adhesive and a preparation method thereof. The aluminized film adhesive provided by the invention is prepared from the components accordingto a certain proportion, the polymeric monomer, the specific tackifying resin, the tackifier and the certain quick-drying agent have a synergistic effect, and the thickening agent, the dispersing agent, the filler and the emulsifying agent are matched, so that the adhesive meets the roller coating construction requirement of a pasting roller, and the bonding speed and the bonding strength of theadhesive can be effectively improved; in addition, the antioxidant and the mildew preventive are matched, so that the aging resistance, the heat resistance, the chemical corrosion resistance, the weather resistance and the mildew-proof and antibacterial properties of the adhesive can be improved; in addition, the adhesive is relatively safe and environment-friendly.

The invention provides a novel environment-friendly acoustic insulating building material and a preparation method thereof. The novel environment-friendly acoustic insulating building material is prepared from the following components: kaolin ore slurry concentrate, polyethylene resin, phenolic resin, magnesium oxide, fly ash, ceramic powder, gypsum powder, sawdust, plant fibers, polyethylene glycol, toughening filler, an antioxidant, a puffing aid and water. The preparation method of the novel environment-friendly acoustic insulating building material disclosed by the invention has the advantages of simple production process and low possibility of deformation when being pressed; low carbon, and environment friendliness are realized by adopting a variety of domestic and industrial wastes;the novel environment-friendly acoustic insulating building material can be widely applied to the field of building materials, and the utilization rate is improved; in addition, the building materialprepared by the invention has the characteristics of light weight, high pressure resistance and good sound insulation and thermal insulation effects.

The invention relates to the field of flavors and fragrances, and particularly discloses a hot-fragrance explosive candle essence and a preparation method thereof. The invention relates to a hot fragrance explosive candle essence, which comprises the following components by weight: 1-5 parts of dihydromyrcenol; 1 to 5 parts of isobornyl acetate; 1 to 5 parts of p-tert-butyl cyclohexyl acetate; 1 to 5 parts of terpinyl acetate; 10 to 20 parts of diethyl phthalate; 20 to 30 parts of cedar wood oil; 1 to 5 parts of isolongifolanone; 10 to 20 parts of benzyl benzoate; 20-30 parts of pine needle oil; 1 to 5 parts of patchouli oil; 1 to 5 parts of Roya sandalwood; and 1 to 5 parts of methyl cedryl ketone. The preparation method comprises the following steps: uniformly stirring and mixing the raw materials in a stirring container, and homogenizing the obtained mixed liquid at high pressure to obtain the hot-fragrance explosive candle essence. When the hot-fragrance explosive candle essence is applied to a candle for combustion, the hot-fragrance explosive candle essence has stronger explosive power after being heated, can continuously maintain higher fragrance intensity for a longer time, and is good in overall applicability.

The invention provides heat-resistant coating for electronic equipment as well as a preparation method thereof. The heat-resistant coating for the electronic equipment is prepared from the following components: modified acrylic acid resin, amino resin, a dispersing agent, toughening fiber, diatomite, talcum powder, carbon black, barium sulfate, an organic solvent, a film-forming agent, paraffin, an antioxidant, an adhesive and a leveling agent. The coating prepared by the method has high heat resistance and waterproofness and also has high glossiness, high anti-static capability, high mechanical property, ageing resistance and wear resistance; furthermore, the coating has the advantages of simple preparation process, short curing time, high coating leveling property, strong adhesive force,good coating appearance and long service life.

The invention discloses a glyuronic acid ecological fertilizer aid and application, and belongs to the technical field of fertilizer aids, and the glyuronic acid ecological fertilizer aid is prepared by proportionally preparing and processing glyuronic acid, modified sodium lignin sulfonate, a compounded sulfonate composite material, humic acid and boric acid. According to the invention, glyuronic acid and modified sodium lignin sulfonate can be adsorbed on the surface of a common fertilizer after being mixed with the common fertilizer, so that fertilizer particles form a good dispersion system under the action of electrostatic mutual exclusion, and trace metal ions can be chelated; furthermore, particles in a common fertilizer can form a stable solution body fluid after being dissolved in water, phosphorus fixation is reduced, precipitation is avoided, and the utilization rate of fertilizer nutrients is increased; the fertilizer added with the glyuronic acid ecological fertilizer aid has the effects of stress resistance, disease resistance, root promotion and growth promotion.