144results about How to "Strong surface adsorption" patented technology

The invention relates to a Fe3O4/C magnetic nano solid extracting agent coated with a novel carbon material, belonging to the field of chemical analysis and test instruments and equipment. The extracting agent simultaneously has large special surface area of nano material, short disperse path, magnetic separation capacity of magnetic material and strong adsorption capacity of carbon material, thereby being very suitable for pretreating large-scale and large-size water samples in batch. In addition, the solid extracting agent is simple to prepare, low in raw material cost, rapid and convenientto extract and friendly to the environment and only needs using a small amount of organic solvent in the whole process.

The invention relates to the technical field of lubricating grease, in particular to organic silicon lubricating grease and a preparation method thereof. The organic silicon lubricating grease comprises the following components in percentage by mass: 10 to 80 percent of base oil, 1 to 30 percent of modifier and 5 to 25 percent of thickening agent. The organic silicon lubricating grease has the advantages of wide application range, excellent dielectric property, insulating property, sealing property, thermal stability, shockproof property and lubricating property, and obvious improvement on lubricating property and thermal stability particularly.

The invention relates to a multipurpose polyester film and a preparation method thereof. The preparation method adopts a biaxial orientation technique and comprises the following steps: 1. preparation of functional assistants; 2. precrystallization and drying; 3. melt extrusion: the precrystallized and dried PET (polyethylene terephthalate) slices and the functional assistants are heated and molten by an extruder, and the melt is uniformly delivered to a die head for slab casting under the push of extrusion pressure; 4. slab casting: the uniform and stable melt from the extrusion system runs on rotating quenching rollers through the die head to form an amorphous slab; 5. longitudinal stretching and lateral stretching: the cast slab is subjected to longitudinal stretching after entering a longitudinal stretching machine, and subjected to lateral stretching after entering a lateral stretching machine; and 7. pulling, slicing, corona treatment, rolling and inspection. The method has wide application range, such as environment-friendly films, twist wrap films, high-brightness films, insulation films, capacitive films, car protecting films, bronzing films, aluminizing films and composite packaging films.

The invention provides high-performance microscopic microfiber building heat insulation and heat preservation slurry with high tensile strength, compressive strength, heat insulation performance and tear resistance, and a using method thereof. The slurry comprises the following components of crylic synthetic resin, fluorinated silicone synthetic resin, a water retention thickening agent solution,a sepiolite fiber, a vermiculite fiber, a mullite fiber, powdered silicon dioxide, pearlife, a rock wool fiber, hollow ceramic microballs, a defoaming agent, a mildewproof bacteriacide and water; andfurthermore, white portland cement, a reinforcing agent and water which is 20 to 30 weight percent of a component A can be added.

The invention relates to a preparation method of an automotive damping material and mainly relates to a high-performance damping slurry filled withe functionalized graphene and a preparation method of the high-performance damping slurry. The preparation method comprises the steps of sieving bentone, fumed silica, nano calcium carbonate, functionalized graphene, nano-silver powder by use of a sieve of 100-200 meshes, blending a core-shell emulsion, a defoamer, a plasticizer and a cross-linking agent, stirring evenly, adding the sieved powder to the blended emulsion, mixing by virtue of mechanical stirring at a normal temperature and a stirring speed within the range of 100-200r/min, and adding deionized water for regulating the thickness to the range of 8-10. The functionalized graphene has excellent solubility with a polymer matrix; due to frictional loss between the functionalized graphene and the polymer matrix due to interfacial slippage, the energy can be effectively dissipated, and the noise pollution in a vehicle can be effectively reduced; meanwhile, the silver nanomaterial is taken as an antimycotic assistant, and has an excellent antimycotic effect.

The invention discloses a waterproof cement-based coating and a preparation method thereof. The waterproof cement-based coating comprises a component A of super hydrophobic materials, a component B of emulsion and a component C of inorganic powder; the component A of the super hydrophobic materials prepared with a sol-gel method from, by weight, 35-50 parts of graphene, 2.5-6 parts of ethyl silicate, 5-12 parts of a silane coupling agent, 55-75 parts of absolute ethyl alcohol, 0.8-2 parts of ammonium hydroxide and 8-15 parts of deionized water; the component B of the emulsion is prepared from, by weight, 35-55 parts of hard monomers, 35-55 parts of soft monomers, 2-5 parts of functional monomers, 2-10 parts of super hydrophobic materials, 1-5 parts of a coalescing agent, 1-5 parts of plasticizer, 0.8-1.5 parts of emulgator, 0.5-1 part of a dispersing agent, 0.5-1 part of corrosion remover, 0.05-1 part of defoamer and 0.05-1 part of an initiating agent; the component C of the inorganic powder is prepared from, by weight, 25-45 parts of ordinary portland cement, 25-45 parts of portland fly-as cement, 20-30 parts of 200-mesh silica sand, 15-10 parts of a carbon nano tube and 0.-1 part of water reducer. During preparation, the obtained super hydrophobic materials are added in emulsion polymerization, so that stability of better bonding strength, waterproofness, impact resistance and the like of the coating is achieved.

The invention discloses a nanometer lubricant for a drilling fluid and a preparation method of the nanometer lubricant in the petroleum industry. The lubricant is added to the drilling fluid to improve the lubricity of the drilling fluid, and then the friction and the torque in the drilling process are reduced. The nanometer lubricant for the drilling fluid comprises linear alpha-olefin, nanosilicon dioxide, sulfide fatty acid ester, a surfactant and water, the preparation method comprises putting the linear alpha-olefin into a stirring kettle, controlling the temperature of the kettle to 25-30 DEG C, then proportionally adding the surfactant, stirring for 4 hours, proportionally adding the nanosilicon dioxide, stirring for 2 hours, then proportionally adding the sulfide fatty acid ester,stirring for 2 hours, proportionally adding water, controlling the water addition speed to be lower than or equal to 2 m<3>/h, and continuously stirring for 4 hours until an even water-in-oil emulsionis formed, wherein the water-in-oil emulsion is the nanometer lubricant for the drilling fluid.

The invention which discloses a controlled release microecological preparation for water quality improvement and a preparation method thereof belongs to the biotechnological field, and concretely relates to the preparation method of the controlled release microecological preparation for water quality improvement. The microecological preparation treats bacillus subtilis as a main flora and Bacillus cereus, lactics, and microzyme as auxiliary floras. By adopting the composite microbial preparation to process water, organic mud can be effectively degraded, harmful substances of ammonia, nitrites, hydrogen sulfide and the like in water can be absorbed and utilized, the breeding of harmful microbes and harmful algae can be inhibited, the microecological environment of water can be balanced, and the health growth of aquatic organisms can be promoted, so the microecological preparation of the present invention is more economical and is more suitable for popularization than common microecological preparations.

The invention relates to the technical field of high molecular adhesives and particularly relates to a preparation method of a low-temperature-resistant TPU hot melt adhesive membrane. The preparationmethod comprises the following steps: modifying rosin to obtain modified rosin; reacting with other raw materials to prepare polyurethane; and adding an additive to react to obtain the low-temperature-resistant TPU hot melt adhesive membrane. According to the preparation method provided by the invention, the surface adsorption capacity of fumed silica is strong, and polyurethane at the low temperature is accumulated on the surface of the fumed silica and is hardly oriented to be orderly arranged and crystallized, so that the low-temperature crystallization of the low-temperature-resistant TPUhot melt adhesive membrane is reduced; low-temperature-resistant TPU hot melt adhesive membrane and rosin react to obtain maleated rosin which has the characteristics of being relatively high in softening point, acid value and the like; the maleated rosin reacts with glycerinum to generate modified rosin resin, so that the softening point thereof is increased, and the stability thereof is improved; at the low temperature, the TPU hot melt adhesive membrane keeps viscoelasticity, so that a purpose of keeping high adhesive property at the low temperature is reduced, and the low-temperature-resistant TPU hot melt adhesive membrane is wide in application prospect.

The invention discloses glass curtain wall energy-saving paint and a preparation method thereof, and relates-the technical field of energy-saving materials, the glass curtain wall energy-saving paint includes the following raw materials: 65-75 parts of modified waterborne epoxy resin, 45-55 parts of a thermal insulation filler, 20-25 parts of antibacterial powder, 20-23 parts of an ultraviolet absorbent, 15-17 parts of nano titanium dioxide, 10-15 parts of an additive and 70-80 parts of water. The glass curtain wall energy-saving paint has the advantages of coating uniformity, strong adhesion, good weatherability and good insulating performance, can effectively reduce the glass heat transfer coefficient, and is heat and ultraviolet radiation-blocking, thereby reducing energy consumption and light pollution to play an indoor and outdoor energy-saving role.

The invention discloses an autoclaved aerated concrete plate and a molding process thereof which are applied to the field of building materials and are used for solving the technical problem of use limitation caused by rough surface of a high-strength granite concrete plate in the prior art. The technical scheme has the key points that the autoclaved aerated concrete plate comprises the followingcomponents in parts by weight: 100-110 parts of cement, 125-140 parts of quick lime, 600-610 parts of coal ash, 6-10 parts of aerated aluminum paste, 200-230 parts of expanded perlites and 30-40 partsof powder filler. The expanded perlites and the powder filler are added into the cement, the quick lime, the coal ash and the aerated aluminum paste, and self-gaps of the expanded perlites and gaps between the adjacent expanded perlites can be filled with the powder filler, so that the autoclaved aerated concrete plate which is uniform in texture and smooth in surface can be favorably prepared, and the use range of the plate is remarkably widened.

The invention discloses a technique for producing zinc stearate by a dry method. The technique comprises the following steps of: adding stearate, zinc compound and water in a mass ratio of 82 to 88%:10 to 15%:2 to 5% into a reactor, stirring and reacting for 1 to 5 hours at temperature of 50 to 150 DEG C and pressure of 0 to 0.10 MPa, and then obtaining the zinc stearate. The reaction device is characterized in that a motor (1) is connected with a speed reducer (2) which is connected with a gear transmission (3); the gear transmission (3) is connected with a stirrer (9) arranged in a reaction container (4); and a temperature measuring port (5) and a feeding port (6) are arranged above the reaction container (4) which is externally provided with a clamping sleeve (8), and a discharging port (10) is arranged below the reaction container (4). The invention has simple technique, little equipment investment, short production period, no wastewater discharging, high efficiency and low cost; and compared with a melting method, the technique has lower reaction temperature, low energy consumption and good whiteness and the obtained rough product after the reaction is ended is more loose and easy to be crushed.

The invention discloses a super hydrophobic JS waterproof coating and a preparing method thereof. The coating is prepared from component A super hydrophobic materials, component B emulsion and component C inorganic powder. The component A super hydrophobic materials are prepared from 15-25 parts of graphene, 2.5-6 parts of a water soluble cationic surfactant, 55-75 parts of a sodium silicate solution, 10-15 parts of NaOH of 10%, 25-45 parts of a silylating reagent and 8-15 parts of deionized water with the electrochemical stratification method; the component B emulsion is prepared from 35-55 parts of hard monomers, 35-55 parts of soft monomers, 2-5 parts of functional monomers, 2-10 parts of super hydrophobic materials, 1-5 parts of a film forming agent, 1-5 parts of a plasticizer, 0.8-1.5 parts of an emulsifying agent, 0.5-1 part of a dispersing agent, 0.5-1 part of a preservative, 0.05-1 part of an antifoaming agent and 0.05-0.1 part of an evocating agent; the component C inorganic powder is prepared from 25-45 parts of ordinary portland cement, 25-45 parts of fly-ash portland cement, 20-30 parts of quartz sand of 200 meshes, 10-15 parts of carbon nano-tubes and 0.5-1 part of a water reducer. When the super hydrophobic JS waterproof coating is prepared, the obtained super hydrophobic materials are added into emulsion polymerization, and the coating has the more excellent stabilities such as bonding strength, water resistance and impact resistance.

The invention discloses aluminum profile anode oxidizing electrolyte, a preparation method thereof and an aluminum profile anode oxidizing process and belongs to the technical field of electrolysis orelectrophoretic processes. The electrolyte is composed of phytic acid, fulvic acid, a PH conditioning agent and water, the concentration of the phytic acid in the electrolyte is 70-90 g/L, the concentration of the fulvic acid in the electrolyte is 35-55 g/L, and the PH value of the electrolyte is 2.0-2.8. On the one hand, the phytic acid of the electrolyte is mainly sourced from root trunks, stems and seeds of plants, the fulvic acid can be used for a medical purpose, and therefore, the electrolyte mainly composed of the phytic acid and the fulvic acid is completely poisonous and harmless andis environmentally friendly; and on the other hand, aluminum ions dispersed into a solution and a complex formed by the phytic acid and the aluminum ions can be adsorbed to a position nearby an aluminum profile, a complex of phytic acid and Al<3+> is also formed on the surface of aluminum oxide while hole sealing is assisted, a layer of compact hydrophobic protective film is produced, a chemicaldissolution effect of the electrolyte on the oxidation film is retarded, the performance of the film is improved, and the corrosion resistance of the oxidation film is enhanced.

The invention relates to a method for preparing an automotive sound-insulation material, and mainly relates to a high-performance foam damping material and a method for preparing the same. Graphene is used as a filler for the high-performance foam damping material. The method includes preparation procedures of mixing ethylene-vinyl acetate resin, fumed silica, filling agents, the functionalized graphene and plasticizers with one another in an internal mixer at the mixing temperature of 85 DEG C and the rotational speed of 30 revolutions/min for 5-10min to obtain mixed compounds; adding foaming agents, foaming agent accelerators and peroxide cross-linking agents into the mixed compounds to continue mixing at the mixing temperature of 85 DEG C and the rotational speed of 30 revolutions/min for 5-10min; discharging slices of the mixed compounds. The high-performance foam damping material and the method have the main technical advantages that the functionalized graphene and polymer matrixes are excellent in solubility, energy can be effectively dissipated under the effect of friction loss owing to interface slip between the functionalized graphene and the polymer matrixes, and accordingly noise pollution in automobiles can be effectively reduced.

The composition of flame retardant oil-base paraffin removing and inhibiting agent for paraffin control and removal in oil field contains light oil 10-20 portions, mixed benzene 70-95 portions, methyl alcohol 0.1-5 portions, water 0.1-1 portion, Peregal 1-5 portions and fluorosurfactant 10 to the minus third-10 to the minus fifth portion. Said paraffin removing and inhibiting agent can be formed into a spread water film on the oil surface, and so that the contact of oil with air can be completely cut off. Said paraffin removing and inhibiting agent can not be burned.

The invention provides a waterproof coating for decoration engineering and a preparation method thereof. The waterproof coating is prepared from the following components: a modified butyl acrylate emulsion, ethyl silicate, castor oil, talc powder, titanium dioxide, graphene, anhydrous ethanol, dimethylethanolamine, dibutyltin dilaurate, a polymerization inhibitor, a defoamer, a coalescing agent and deionized water. The waterproof coating prepared by the invention has excellent bonding strength, waterproof performance, impact resistance and stability.

The invention relates to environment-friendly waterproof coating and a preparation method thereof. The coating comprises two parts: a component A, namely a superhydrophobic material, and a component B, namely a coating composition, wherein the component A, namely the superhydrophobic material, is prepared from the following components in parts by mass: 15 to 25 parts of graphene, 2.5 to 6 parts of a water-soluble cationic surfactant, 55 to 75 parts of a sodium silicate solution, 10 to 15 parts of 10% NaOH, 25 to 45 parts of a silanizing reagent and 8 to 15 parts of deionized water; the superhydrophobic material is obtained by performing silanizing treatment on the surface of the graphene by an electrochemical lamination method; the component B, namely coating composition, is prepared from the following components in parts by mass: 20 to 30 parts of lignin, 20 to 30 parts of starch, 16 to 18 parts of diatom ooze, 10 to 12 parts of ash calcium, 11 to 15 parts of ground calcium carbonate, 0.5 to 1 part of a defoaming agent, 0.8 to 1 part of a dispersing agent and 15 to 30 parts of deionized water; and the waterproof coating is prepared by mixing the component A, namely the superhydrophobic material, and the component B, namely coating composition. According to the environment-friendly waterproof coating and the preparation method thereof which are provided by the invention, environment-friendly biomass materials, such as the starch, the lignin, the diatom ooze and the like, are adopted, and the added superhydrophobic material makes up the defect that the diatom ooze and calcium powder absorb moisture easily, so uniform and excellent water resistance of the coating layer is achieved.

The invention discloses a polymerizable quaternary ammonium salt modified anti-microbial pit and fissure sealant and a preparation method thereof and belongs to the technical field of medical materials for the oral cavity. The polymerizable quaternary ammonium salt modified anti-microbial pit and fissure sealant is prepared from 40%-80% of resin monomer matrixes, 15%-40% of a reactive diluent, 3%-25% of functional monomers, 0.5%-10% of polymerizable quaternary ammonium salt monomers, 1%-20% of nanoscale filler, 0.5%-3% of NaF, 0.05%-3% of a photosensitive initiation mixture, 0.001%-0.05% of a polymerization inhibitor and 0.3%-5% of pigment. The pit and fissure sealant has good biological safety, is short in curing time at the temperature of the oral cavity and long in operation time and has an effective and lasting antibacterial effect; the preparation method is simple to operate, environment-friendly and suitable for industrial large-scale production.

The invention belongs to the field of flow cytometry technology, and specifically relates to an intracellular protein detection method by the use of flow cytometry. The method comprises the following steps of: connecting an amino or carboxy functional group on the surface of 100-120nm silica nanoparticle with an amino group of an antibody against the intracellular protein to be detected by the use of covalent bonds, incubating the silica nanoparticle together with intracellular proteins obtained by ultrasonic and other methods, adding another differently sourced antibody which targeted the same intracellular protein to be detected and carrying out incubating, then incubating with a fluorescein labeled second antibody to form a silica nanoparticle-antibody-intracellular protein-antibody-fluorescein labeled second antibody compound, and finally carrying out qualitative detection on the compound by using flow cytometry. According to the invention, after binding to the antibody against the intracellular protein to be detected, the silica nanoparticle has initiative targeting ability and can target various different intracellular proteins.