43results about How to "Good lipophilic and hydrophobic" patented technology

The invention discloses a graphene modified steel structure water-based anti-corrosive paint and a preparation method thereof. The anti-corrosive paint is prepared from the components in percentage byweight: 10 to 20 percent of deionized water, 5 to 10 percent of graphene dispersion liquid, 30 to 40 percent of anionic acrylic emulsion, 5 to 13 percent of pigment, 20 to 30 percent of filler, 0.1 to 0.8 percent of wetting dispersant, 0.1 to 0.5 percent of defoaming agent, 0.2 to 0.5 percent of pH modifier, 0.3 to 0.6 percent of thickening agent, 0.2 to 0.5 percent of SiO2 hollow microspheres, 0.1 to 0.4 percent of RS preservative, and 2 to 5 percent of coalescing agents. The sum of the weight percent contents of the components in the graphene modified steel structure water-based anti-corrosive paint is 100 percent. Due to the interaction and the space effect among the graphene, the SiO2 hollow microspheres, the pigment and the filler, the defects of poor water fastness, weather fastnessand easiness of flash rust of a traditional water-based acrylic anti-corrosive paint are overcome, the hardness of a film is ensured on the basis of flexibility, and the paint has excellent storage and anti-corrosive performances.

The invention relates to an MOF type hierarchical porous material.The diameter of mesoporous ranges from 2 nm to 50 nm, the size of micropores is smaller than 2 nm, the BET specific surface ranges from 1300 M<2> / g to 1850 M<2> / g, the total pore volume ranges from 1.20 cm<3> / g to 2.80 cm<3> / g, and the pore volume of the mesoporous ranges from 0.5 cm<3> / g to 1.90 cm<3> / g.The preparation method comprises the following steps that 1, metal zinc salt, 2-methylimidazole, alkali and an organic solvent are stirred to be uniform and transferred into a reaction kettle to be subjected to a reaction for 2-12 h at the constant temperature of 80-130 DEG C; 2, the reaction is completed, cooling is performed to reach the room temperature, obtained gel materials are dried under the temperature of 20-50 DEG C to form a dry adhesive, and then extraction and washing are performed for 6 h or longer; 3, finally, heating is performed for 12 h or longer under the vacuum condition at the temperature of 130-150 DEG C, and then the hierarchical porous material is obtained.The micropores are from the ZIF-8 structure, the mesoporous is frame holes between particles, and the hierarchical porous material can be used for adsorbing and purifying organic pollutants.

The invention discloses a preparation method of a high efficient oil storage type oil absorbent felt material, and belongs to the field of oil pollution treatment. Oyster mushroom bran is processed byplasma to increase the content of polar groups on the surface so as to improve the lipophilic property and oil adsorption performance; methyl methacrylate and butyl acrylate are used to prepare composite resin, which can increase the oil absorption amount and has good mechanical stability and lipophilic-hydrophobic properties; processed chitosan is added to enhance the oil absorbing performance of the oil absorbent felt material, moreover, chitosan has excellent thermal stability and a good solid-solid phase change performance; when the oil absorbent felt material is used in an environment with a large temperature difference, during the solid-solid phase change process, the chitosan can maintain a relatively stable volume in the oil absorbent felt material, and thus other components can well exert their functions. The problem that the oil absorbing performance and oil storage performance of a conventional oil absorbent felt are not good is solved.

The invention discloses a device for removing riverway floating oil through solar energy photolysis. The device comprises a support, a body, a solar cell panel and a storage battery. The body is erected on the support and movably connected with the support, the solar cell panel is arranged above the body, and the storage battery is electrically connected with the solar cell panel. The body comprises a hollow barrel, a sealing cover and multiple blades. Ultraviolet tubes electrically connected with a positive electrode and a negative electrode of the solar cell panel and a positive electrode and a negative electrode of the storage battery are arranged in the hollow barrel. The outer surface, covered with an oleophilic layer, of the hollow barrel is provided with axial grooves with through holes formed in the bottoms, the through holes stretch inwards in the radial direction to form hollow conical barrels with holes formed in the tops, the bottoms of the hollow conical barrels are arranged on the inner wall of the hollow barrel and provided with open holes right opposite to the corresponding through holes, and the side wall faces, irradiated by the ultraviolet tubes, of the hollow conical barrels are covered with photocatalytic materials. At least one openable sealing cover covers the two ends of the hollow barrel. The blades protrude outwards in the radial direction from the outer surface of the hollow barrel. No power device is needed, and the device is high in oil removal efficiency, simple in structure, low in price, convenient to use and low in maintenance cost.

The invention discloses a method for modifying nano silica, which comprises the following steps of: adding nano silica into water, and stirring and uniformly mixing to obtain a nano silica slurry; delivering the nano silica to a surface treatment machine, heating to and then adding a first surface treatment agent, the first surface treatment agent described is composed of saturated fatty acid andfatty alcohol polyoxyethylene ether sodium sulfate, stirring to complete the first surface modification of the nano silica; the modified nano silica through dehydration, drying, pulverization and classification to obtain the nano silica powder; then delivering the nano silica to a high-speed mixer, controlling the temperature of the material , adding a second surface treatment agent which is composed of the alkylphenol polyoxyethylene ether sodium sulfate and the acrylic rosin polyoxyethylene sucrose ester , high-speed stirring uniformly, carrying out the discharging and drying , and obtainingthe modified nano silica . The nano silica modified by the method not only has good dispersibility, good stability, but also has excellent weather resistance, oxidation resistance, storage stabilityand processing flow property.

The invention discloses an oil-permeable water-blocking type propping agent and a preparation method thereof. Firstly, a polyurethane curing agent and nano-particles are added into the polyurethane solution, the mixture is subjected to ultrasonic dispersion for 20-40 minutes to obtain a suspension solution with dispersed nano-particles; a silane coupling agent, a thermoplastic resin, a plasticizer, a coloring agent and an amine curing agent are added into the aggregate in turn under the conditions of 110-200 DEG C thermal insulation and stirring, the mixture is stirred for 5-10 min and then a dispersing agent is added, the mixture is continuously stirred until the dispersing agent is uniformly dispersed, discharging, cooling and sieving are performed to obtain a coated propping agent; the coated propping agent is arranged in the suspension solution with dispersed nano-particles, soaked for 30 min, then filtered and dried to obtain the oil-permeable water-blocking type propping agent. The propping agent has good lipophilicity and hydrophobicity, the oil yield of crude oil is increased, the flow guiding capacity of the crude oil is greatly improved, the oil exploitation is facilitated, and the propping agent is very important for improving the yield and grade of crude oil in China.

The invention belongs to the technical field of environmental protection materials, and specifically discloses a hydrophobic lignin / cellulose airgel oil-water separation material and a preparation method and application thereof. The preparation method comprises the following steps: adding lignin and cellulose to an alkaline solution to obtain a lignin / cellulose mixed solution; adding a crosslinking agent to obtain a lignin / cellulose composite hydrogel; solvent exchange and drying The elastic airgel is obtained, and then the elastic airgel is hydrophobically modified by a chemical vapor deposition method using a silane coupling agent to obtain a hydrophobic lignin / cellulose airgel. The lignin / cellulose airgel oil-absorbing material prepared before and after hydrophobic modification has a highly porous network structure, and the prepared oil-absorbing material is placed in an oil-water mixture, and the absorption rate is as high as 10 to 25 times its own weight. After the oil is absorbed, the oil can be extruded by extrusion, and the oil-absorbing material can be regenerated, and the recycling still has a high oil-absorbing efficiency.

The invention relates to a bentonite surface modification and intercalation technique. In the technique, natural bentonite serving as a base is subjected to surface modification and intercalation, wherein the ion exchange capacity of the natural bentonite is 50 to 150 mmol / 100g; and the bentonite is sodium-based bentonite, calcium-based bentonite or sodium-calcium-based bentonite. The bentonite subjected to the surface modification and the intercalation has the advantages of high adsorption property, high oleophylic and hydrophobic property, capacity of effectively adsorbing harmful substances such as all kinds of mycotoxin and the like in feed, wide application and suitability for the fields of feed production or environmental protection, coating, papermaking, lubricants and the like.

The invention provides a method for extracting and separating vanadium and chromium from the vanadium-chromium slag acid leaching solution, comprising: S1, using the extraction solution to extract the pentavalent vanadium and hexavalent chromium in the vanadium-chromium slag acid leaching solution to the organic phase and then combine with The aqueous phase is separated to obtain an organic phase loaded with vanadium chromium; S2, using a stripping agent to carry out back extraction of the organic phase loaded with vanadium chromium in step S1, after the stripping ends, obtain chromium-containing back raffinate, ammonium metavanadate or ammonium polyvanadate precipitation and regenerated ionic liquid; S3, calcining the ammonium metavanadate or ammonium polyvanadate precipitation obtained in step S2 at 550°C-600°C to obtain vanadium oxide; S4, stripping step S2 The Cr6+ in the remaining liquid is reduced to form Cr3+, and the chromium is precipitated in the form of precipitation after adjusting the pH of the chromium, which is calcined to obtain Cr2O3. The method of the present invention has high extraction efficiency, rapid stratification after extraction, no emulsification phenomenon, and the ionic liquid has good lipophilic and hydrophobic properties, has good solubility in long-chain alcohols, and is basically immiscible with water, which can reduce the Loss of organic phase due to entrainment or dissolution of the aqueous phase.

The invention discloses a single-component thermal interface material and a preparation method thereof. The single-component thermal interface material is prepared from the following raw material components in percentage by mass: 1 to 10 percent of vinyl-terminated polysiloxane, 0.1 to 3.6 percent of terminated hydrogen-containing polysiloxane, 0.1 to 3.4 percent of side hydrogen-containing polysiloxane, 0.01 percent of catalyst, 0.003 percent of inhibitor and 85 to 95 percent of modified filler. The modified filler is silane coupling agent modified heat-conducting powder. The single-component thermal interface material provided by the invention has high thermal conductivity, high elongation, low modulus, low adhesive layer thickness and low thermal resistance, has excellent infiltration performance, can meet the strict requirements of chip packaging process flow and technology, has high application reliability, can provide a proper, stable and healthy working temperature environment for chips, and has wide application prospect. And the service life and efficiency of the chip are improved.

The invention discloses a method for processing perlite oil absorbent used for absorbing oil dirt on water surface. The method comprises the following steps: 1) selecting the components according to the mass percentage of 72-75% of silica, 15-18% of alumina, 0.5-1% of iron oxide, 2.9-3.5% of sodium oxide, 0.5-2% of calcium oxide, 2.5-3% of potassium oxide, 0.1-0.4% of manganese oxide, and 4-6% of moisture, screening the perlite ore sands with appropriate granularity of 0.2-0.5 mm as a raw material; 2) placing the perlite ore sand in a preheating furnace for preheating; 3) placing the preheated perlite ore sand in an expansion furnace for high-temperature roasting to reach instant expansion; and S4) performing film-coating modification on the particles surface for the expanded perlite ore sand to prepare the perlite oil absorbent used for absorbing oil dirt on water surface. The perlite oil absorbent particles have the advantages of light weight and high porosity, can suspend on the water surface for long time, and have high floating oil rate on the adsorbed water surface, and the adsorbed floating oil can be effectively recovered and used.

The invention discloses a preparation method of an oleophilic hydrophobic coated proppant. The method comprises the following steps: 1) mixing a thermoplastic resin and petroleum asphalt, heating to 70-100 DEG C, melting, stirring and compounding to obtain a compounded resin; and weighing 20-40-mesh quartz sand and haydite aggregate, adding into a resin sand mill, heating to 140-230 DEG C, sequentially adding a silane coupling agent, the compounded resin, a plasticizer and an amine curing agent while stirring, adding a dispersing agent when a dispersion evidence occurs, discharging, cooling, and screening to obtain the oleophilic hydrophobic coated proppant. After adding the asphalt, the coated proppant product has favorable oleophilicity and hydrophobicity, has higher flow conductivity in crude oil than the traditional coated proppant, is beneficial to petroleum exploitation, enhances the oil output of the crude oil, and has crucial importance for enhancing crude oil production rate and grade of China.

The invention discloses a device for removing slick oil in a river course, comprising: a bracket, and a main body erected on the bracket and movably connected with the bracket, the main body includes a hollow cylinder, a sealing cover and several blades, wherein the outer surface of the hollow cylinder is along the A groove is opened in the axial direction, and a through hole is opened at the bottom of the groove. The outer surface of the hollow cylinder and the surface of the groove are covered with an oleophilic layer; A hollow cone is extended inside, the bottom of the hollow cone is set on the inner wall of the hollow cylinder, the bottom and top of the hollow cone are provided with openings, and the bottom openings are facing the corresponding through holes, the size of which is not less than The size of the corresponding through hole; the sealing cover is arranged at both ends of the hollow cylinder, and at least one of them can be opened; the vane protrudes outward from the outer surface of the hollow cylinder in a radial direction. The device does not need to be equipped with a power device, and has high oil removal efficiency, simple structure, low price, movable, convenient use and low maintenance cost.