377results about How to "Anti-pollution" patented technology

The invention discloses a nano modified water-base multifunctional sound-absorbing paint and a preparation method thereof. The paint is composed of the following components in parts by weight: 28-38 parts of emulsion, 2-10 parts of pigment, 30-45 parts of filler, 15-25 parts of water, 4-8 parts of flame retardant and 2.25-5.43 parts of assistant. By optimizing the paint system structure, the polymer and filler are selected, modified and proportioned to ensure the basic mechanical properties and sound-absorbing function, and the paint has high-value service properties, such as thermal insulation, moisture resistance, fire resistance, aging resistance, fouling resistance, sterilization, air purification and the like, and is especially suitable for rooms and other occasions with higher environmental requirements.

The invention discloses a superhydrophobic inorganic organic nano composite polymeric coating material and a preparation method thereof. The coating material is prepared from 30 to 98 mass percent of thermosetting polymeric precursor and 10 to 70 mass percent of surface functionalized nanoparticle under the action of 0 to 5 mass percent curing agent, wherein the obtained surface water contact angle and rolling angle of the material are 120 to 180 DEG and 1 to 20 DEG respectively; and a falling water drop which is spherical can bounce up and can freely roll on the surface. The method has the characteristic of simple preparation process by using the chemical reaction between organic groups on the surfaces of the polymeric precursor and the modified nanoparticle in the solution. The coating material has the functions of stain resistance, dust prevention and self cleaning.

To improve not only the durability of a reflecting film but also that of a peripheral member, and to reduce manufacture loss by preventing adhesion of fine foreign materials such as dusts. Provided is a white polyester film for liquid crystal display reflectors, which contains a light stabilizer in a polyester film having fine air bubbles and has an average reflectivity of 97% or more on the surface of at least one side of the film.

The present invention relates to paint industry technology, and is especially one kind of fluoric water-base paint. The fluoric water-base paint consists of fluorocarbon emulsion 20-90 wt%, supplementary emulsion 1-25 wt%, pigment 5-20 wt%, stuffing 1-31 wt%, dispersant 0.1-1.4 wt%, defoaming agent 0.1-0.3 wt%, wetting agent 0.3-0.5 wt%, bactericidal anti-mildew agent 0.1-0.3 wt%, filming assistant 0.01-13.5 wt%, thickener 0.01-1.1 wt% and multifunctional assistant 0.3-0.5 wt% except water. The paint has high weather resistance, high chemical corrosion resistance, antifouling property, high performance/cost ratio and other advantages.

The invention provides a culture medium for selenium-rich organic edible fungi, which is mainly prepared from the following raw materials in parts by mass: 60-90 parts of culture main material, 10-25 parts of carbon organic fertilizer, 1-5 parts of selenium-rich nutrient element, 1-6 parts of root irrigation culture agent, 0.2-0.5 part of compound probiotic fertilizer and 0.1-0.5 part of plant growth promoter. The method for culturing selenium-rich organic edible fungi by using the culture medium comprises the following steps: mixing the plant growth promoter and compound probiotic fertilizer, and dissolving in water to prepare a liquid; mixing the rest raw materials, adding the liquid, and fermenting to obtain the culture medium; and uniformly mixing a strain with the culture medium for inoculation, culturing for 10-15 days until the hypha are overgrown, and reinoculating the hypha. The culture medium has the advantages of reasonable component proportioning and high growth speed of hypha.

The invention relates to a shale gas well slickwater fracturing fluid system high-efficiency emulsion quick water-soluble drag reducer, belonging to the technical field of oilfield drag reducers. The drag reducer is prepared by initiating polymerization of a component A, a component B and a component C by a free-radical initiator in water, wherein the component A is composed of a plurality of nonionic water-soluble monomers with carbon-carbon double bond; the component B is a water-soluble polymer stabilizer of univalent cationic monomers; and the component C is a univalent cationic inorganic salt. The drag reducer is simple to use, quick to hydrate and convenient to add, is green and environment-friendly, and has the advantages of high dissolution rate, no bubbling, salt resistance, calcium resistance, pollution resistance, high temperature resistance, favorable compatibility, no need of adding defoaming agent and the like; and the drag reduction efficiency can reach 70% when the drag reducer is used in fracturing. The drag reducer solves the problems of high tendency to granulation and low tendency to hydration in the use process of the existing drag reducer using dry powder, and the problem that the poor compatibility among various different ions and chemical assistants in the fracturing fluid can directly influence the feasibility and effectiveness of the slickwater fracturing.

The invention relates to the technical field of new environment-friendly materials, in particular to a preparation method of an anti-pollution and super-hydrophilic oil-water separation mesh. The preparation method comprises the following steps: adding graphite oxide into an organic solvent to obtain a graphene oxide solution; adding a film-forming material into the graphene oxide solution, and evenly stirring; then, adding a crosslinking agent and a surface active agent, and heating to obtain a polymer solution; soaking a stainless steel mesh into the polymer solution, and drying the soaked stainless steel mesh by heating so as to obtain the anti-pollution and super-hydrophilic oil-water separation mesh. The anti-pollution and super-hydrophilic oil-water separation mesh prepared by the invention has the characteristics of being anti-pollution, high in mechanical strength, obvious in dynamic oil-water separation effect, low in preparation cost, and the like, and has good commercial prospect in the technical field of special infiltration interfaces.

The invention discloses a high-temperature resistant clay stabilizer and a preparation method thereof. The preparation method comprises the following steps: carrying out initiation reaction on epoxy chloropropane, dimethylamine and unsaturated quaternary ammonium salt with a sulfonate-containing anionic monomer under a certain condition; and then adding a chain transfer agent in the reaction process to control the molecular weight and after reaction, obtaining the clay stabilizer, wherein both the main and side chains contain cations and the side chain further contains anions. The clay stabilizer has the abilities of resisting temperature, preventing salt and resisting pollution; the clay stabilizer is small in use level, scouring resistant and good in anti-swelling effect; and the molecular weight is ranged from 1500 to 6000, so that the high-temperature resistant clay stabilizer is suitable for a low permeability reservoir.

The invention relates to a hollow fiber forward osmosis membrane. The hollow fiber forward osmosis membrane comprises a supporting pipe and a forward osmosis separation layer, wherein the forward osmosis separation layer is arranged in the direction of the external periphery of the supporting pipe, and the supporting pipe is formed by weaving inorganic or organic polymer materials. The invention further relates to a preparing method of the hollow fiber forward osmosis membrane. The preparing method comprises the steps of S1, immersing the supporting pipe in an aqueous-phase monometer solution, taking the supporting pipe out, and then sucking the surface layer dry; S2, immersing the supporting pipe in an organic-phase monomer solution, taking the supporting pipe out, sucking the outer surface dry, and then conducting heat treatment; S3, washing the supporting pipe subjected to heat treatment with deionized water so that the inner supporting pipe hollow fiber forward osmosis membrane can be obtained. The hollow fiber forward osmosis membrane and the preparing method thereof have the advantages that the hollow fiber forward osmosis membrane is high in mechanical property, water permeability and pollution resistance, and according to the preparing method, technology is simple, preparing cost is low, and preparing process is easy to control.

The invention discloses a hydrophilic-oleophobic material, and a preparation method and an application thereof. The hydrophilic-oleophobic material comprises a hydrophilic porous material used as a matrix, and the matrix is grafted with hydrophilic-oleophobic molecules. Hydrophilic groups contained in the hydrophilic porous material and polar groups contained in the hydrophilic-oleophobic molecules undergo a bonding reaction to make the matrix be grafted with the hydrophilic-oleophobic molecules. The hydrophilic-oleophobic material has hydrophilic and oleophobic properties in air, has underwater super oleophobic property, can effectively treat stable emulsified oil sewage, and has the advantages of self cleaning, pollution resistance and long life, so the hydrophilic-oleophobic material is a good oil-water separation material, and has wide application prospect in the field of oil-water separation and filtration treatment of organic sewage generated in the industry and life. The preparation method of the hydrophilic-oleophobic material has the advantages of simplicity, cheap and renewable raw materials, and commercial promotion facilitation.

The invention relates to a low-temperature pressurization head space sample injection device for measuring volatile substances in the atmosphere through a GC-MS (gas chromatography-mass spectrometer) technology. The low-temperature pressurization head space sample injection device comprises a reciprocating full-glass piston pump which consists of a glass piston cylinder barrel (1), a unidirectional valve a (2), a unidirectional valve b (3), a clamp (4), a crank-link mechanism (5), a micro motor (6) and a worm speed reducer (7), a sampling head space bottle which comprises a head space bottle body (10) and cooling equipment, wherein a seal is arranged at the head space bottle; two injection needle heads with different lengths are inserted into the seal; the long needle head is in contact with the bottom to serve as a gas inlet needle (8); the short needle head is positioned at a bottleneck to serve as a gas exhaust needle (9); the gas inlet needle (8) is connected with the unidirectional valve b (3); the gas exhaust needle (9) is connected to a GC-MS; the head space bottle body (10) is arranged in the cooling equipment (12). Compared with the prior art, the low-temperature pressurization head space sample injection device has the advantages that the efficiency of collecting the volatile components in the atmosphere can be improved, so that the volatile components in the atmosphere can be fully collected and can be subjected to quantitative and qualitative compound analysis in the GC-MS.

The invention discloses a shot peening strengthening device for a high-speed train wheel. The shot peening strengthening device comprises a shot-blast room, three shot blasters, a shot separation and recovery device, a shot storage and supply device, a dust removal device, a rotary worktable and a clamp, wherein the rotary worktable is positioned on one side of the shot-blast room and provided with two clamp worktables symmetrically arranged along the diameter; each clamp worktable can be equipped with six train wheel workpieces and rotates in a shot-blast process for strengthening the train wheel surface to be uniform; the rotary worktable can intermittently rotate and rotate 180 degrees each time; the three shot blasters are connected with six blast guns, and each blast gun corresponds to one train wheel workpiece; the shot separation and recovery device comprises a shot lifting machine and a shot separator, and is used for lifting and separating shots; the dust removal device is a dust remover, and the air suction hole of the dust removal device is connected with the shot separator and an air suction hole in the top end of the shot-blast room to guarantee indoor visibility and keep a certain negative pressure in the room. A shot-blast machine is high in processing efficiency and reliable in working.

The invention discloses elastic non-woven cloth with high water absorption and air permeability for medical magnetic therapy. The elastic non-woven cloth is made from, by weight, 20-27 parts of modified polylactic acid fiber, 20-33 parts of modified bamboo fiber, 10-20 parts of hydroxymethyl cellulose, 2-5 parts of casein, 20-30 parts of soybean fiber, 5-10 parts of sodium alginate, 20-35 parts ofstarch, 20-23 parts of magnetic starch, 40-45 parts of modified polyacrylamide fiber and 3-5 parts of a plant extract. The non-woven cloth has bacteriostatic activity, can effectively prevent wound infection, and is suitable for extensive symptoms, remarkable in health effect, safe and reliable in magnetic therapy function and economical and practical; raw materials adopted are biodegradable natural polymer materials and have good biocompatibility, and simpleness in the method is achieved.

The invention relates to a novel seawater desalination reverse osmosis membrane and a preparation method thereof. The seawater desalination membrane with novel structure and novel function is preparedby carrying out an interfacial polymerization reaction on m-phenylenediamine, o-phenylenediamine and p-phenylenediamine monomers with substituent groups, and a trimesoyl chloride monomer; and the novel seawater desalination reverse osmosis membrane has various functions of chlorine resistance, pollution resistance, solvent resistance and the like and is used for various fields of efficient seawater desalination, brackish water desalination, hard water softening and the like.

The invention relates to an automobile windscreen cleaning agent and belongs to the technical field of cleaning agents. The windscreen cleaning agent is prepared by using the following raw materials in percentage by weight: 0.01 to 2 percent of nonionic surfactant, 0.1 to 1 percent of corrosion inhibitor, 0.1 to 5 percent of waterborne silicone oil, 3 to 35 percent of absolute ethyl alcohol, 0 to 0.001 percent of dye and balance of water, wherein the nonionic surfactant is polyether and/or low-foam fatty alcohol-polyoxyethylene ether; the corrosion inhibitor is more than one of benzotriazole, sodium benzoate, triethanolamine, ethylene diamine tetraacetic acid and borax; the waterborne silicone oil is more than one of polyether modified siloxane; the dye is direct fast blue. The windscreen cleaning agent is extremely low in corrosiveness, is high in use safety, can prevent dirt such as tree gum, bird feces and lac from being dried and hardened on the surface of an automobile windscreen to form stubborn stains, and any stain on the automobile windscreen can be easily and quickly removed; the service life of windscreen wipers is also prolonged and the windscreen is prevented from being scratched.