179results about How to "Not easy to wash" patented technology

The invention relates the chemical engineering field, especially a H2 and CO2 inhibiter. H2 and CO2 are produced accompany to oil-gas field exploitation and transfusion process, and can corrode exploitation equipment. The inhibiter contains at least (by wt. %): isopropyl alcohol 10-30, fatty alcohol polyoxyethylene ether .1-0.5, and litol polyoxyethylene ether 0.1- 1.0. The inhibiter can be used in oil/water well with high temperature and pressure, and has the advantages of good corrosion resistance, low consumption, low cost and high efficiency.

The invention discloses a temperature-control released snow-melting agent microcapsule and a preparation method thereof. The preparation method comprises the steps of preparing a microcapsule in which macromolecular polymer coats snow melting substances by adopting an emulsion-solvent evaporation method, then grafting and polymerizing temperature-sensitive molecules to the surfaces and pore passages of the microcapsule by adopting an ultraviolet grafting method, to obtain the temperature-control released snow-melting agent microcapsule. The temperature-sensitive molecules of the temperature-control released snow-melting agent microcapsule can be swelled or shrunk along with the change of external temperature, the snow-melting agent can be slowly released so as to melt icy snow, so that the snow melting agent has intelligentization, the high-molecular polymer on the surface has stronger adsorption capability, and can adsorb a part of released snow melting substances so as to promote the long-lasting snow melting and ice removal, so that the usage amount of the snow-melting agent can be decreased, and the problem that the snow melting substances are easily scoured by rainwater and cannot be released for a long time can be solved. The temperature-control released snow-melting agent microcapsule can be applied in a pavement asphalt mixture, a microsurfacing position, a slurry seal, an ultrathin wearing layer, and forms a temperature-control released intelligent pavement material.

The invention discloses a water base casting coating for a heavy casting and a manufacturing method thereof. The coating is composed of the following components according to proportion by weight: 65-75% of zircon powder, 20-30% of water, 0.8-2.5% of sodium bentonite, 0.1-0.6% of hydrophilic gaseous phase silica, 0.2-0.8% of waterborne polyurethane, 0.2-0.8% of polyvinyl alcohol, 0.6-2% of Water-based acrylic resin, 0.1-0.4% of butyl cellosolve, 0.1-0.3% of tributyl phosphate, 0.1-0.5% of ethylene glycol and 0.05-0.4% of isothiazolinone.The preparation method is advanced and feed compositions are effectively combined.The product features excellent technical indicators such as rheological behaviour, thixotropy, brushing property, suspension property, storage property, film-forming quality, brushing viscosity, thus being capable of meeting technical quality requirements in heavy casting production, in particular to the heavy casting which weighs more than 100 tons.

The invention provides a water-based self-drying casting paint, and a preparation method and an application method. According to the invention, 1-3% of sodium-based bentonite and water 1-1.5 times the weight of bentonite are uniformly stirred with high speed; the mixture is added in a sealed container and is subjected to standing, where the mixture is sufficiently wetted and activated, such that a liquid A is prepared; 0.1-0.4% of sodium carboxymethyl cellulose is dispersed by using ethanol with a concentration no lower than 95% according to a weight ratio of 1:1; water with an amount 30-50 times that of the mixture is added; the mixture is uniformly stirred and is subjected to standing and sufficient initiation; the mixture is mixed with the liquid A; the obtained mixture is stirred with a proper amount of water; a composite suspension is prepared by grinding by using a colloid mill; the suspension is mixed and grinded with 60-71% of mullite, 0.05-0.1% of a wetting agent, and 4-6% of a modified phosphate binder, such that a pasty paint is prepared; and the pasty paint is diluted by using water, such that the paint is obtained. After a reaction with an alcohol-based paint comprising magnesia powder, the paint can be self-dried. Therefore, cost of independent use of an alcohol-based paint or a water-based paint is greatly reduced, and the influence to the environment is greatly ameliorated.

The invention relates to a high-density porous support for treating wastewater of a biological fluidized bed and a preparation method thereof, belonging to a sewage treatment technology. The high-density porous support is prepared from fly ash, clay, coal gangue, a pore forming material, a caking agent and water in percentage by weight. Particularly, the high-density porous support is prepared by mixing, tabletting and forming, drying, calcining, grinding and crushing, reaming with inorganic acid or alkaline, drying, impregnating with a 20-35 percent exocellular polysaccharide water solution and drying in shade. The preparation method comprises the following steps of: firstly, uniformly mixing and stirring 10-20 percent of fly ash, 40-50 percent of clay, 5-20 percent of coal gangue and 2-10 percent of pore forming material, feeding 15-20 percent of water and 2-10 percent of caking agent again and stirring again, and ageing for 3-5 days; secondly, tabletting mixture, drying the mixture at a temperature of 80-100DEG C for 4-5h, transferring the dried mixture into a muffle furnace and calcining at the high temperature of 1000-1100DEG C for 2-4h; cooling, grinding, crushing and screening by using a sieve mesh with 20-40 meshes; and thirdly, feeding the screened granules into the inorganic acid or alkali and reaming, drying and then impregnating with the 20-35 percent exocellular polysaccharide water solution and drying in shade to obtain the high-density porous support.

The invention relates to a pressure-bearing lost circulation additive for a drilling fluid and for stably bearing pressure on a smooth fracture leakage wall surface. The lost circulation additive is composed of 10%-20% of damping material, 45%-50% of bridging material and 35%-40% of filling material by weight, wherein the damping material is an industrial metal screen, having the size of the damping material is 1.0*1.0mm to 3.0*3.0 mm and the thickness of the damping material is about 0.5 mm; the bridging material is calcium carbonate particles, and the standard mesh number of the screening mesh product of the bridging material is lower than 20 meshes; the filling material is a mixture composed of calcium carbonate powder and flexible graphite powder; the calcium carbonate powder is further divided into three grades to realize multi-grade filling and to form a compact shielding layer; and the mesh number of the flexible graphite is greater than 150, and the anti-pressure ability of a bridge plug section is improved. With the pressure-bearing lost circulation additive for the drilling fluid and for stably bearing pressure on the smooth fracture leakage wall surface disclosed by the invention, leak stoppage success rate and bearing pressure for smooth fracture leakage can be improved, leakage stoppage failure due to complexity is reduced, the benefits of exploring and developing a bored well are improved; and the preparation process of the lost circulation additive is simple and convenient, the source of the materials of the lost circulation additive is broad, and the lost circulation additive is easy to spread and apply.

The invention relates to a preparation method of a multi-element high-concentration liquid fertilizer with the stable performance, aiming at solving the problems of fewer kinds, low element content and poor adhesive power of a traditional multi-element high-concentration liquid fertilizer. In the technical scheme, the multi-element high-concentration liquid fertilizer comprises 100-200 parts of urea, 50-200 parts of phosphoric acid, 50-500 parts of at least one of monopotassium phosphate, potassium pyrophosphate, potassium hydroxide or potassium nitrate, 10-100 parts of borax, 1-50 parts of ammonium molybdate, 1-50 parts of magnesium sulfate, 1-50 parts of EDTA (Ethylene Diamine Tetraacetic Acid) manganese and 10-100 parts of zinc sulfate, wherein the ratio of the weight of water to the total weight of the raw materials is 3:4. The multi-element high-concentration liquid fertilizer is prepared from the raw materials through a chemical reaction and has the advantages of great specific weight, favorable adhesive power and stable performance.

The invention, relating to the field of plant-based insecticides, particularly relates to an Azadirachtin insecticide using plant oil as a medium, characterized by using plant oil as the medium and Azadirachtin as a main insecticidal active component, and adding a certain proportion of various ingredients to prepare four preparations comprising Azadirachtin missible oil, microemulsion, oil flowable formulation, and emulsion in water. According to the invention, the Azadirachtin preparation disclosed herein is prepared by using plant oil as the medium and selecting plant oil to replace aromatic hydrocarbon and other organic solvents to be as the medium, thus the advantages of easy obtainment of raw materials, simple processing, safety, environmental protection, low toxicity, and significant synergic effect are achieved, and the Azadirachtin preparation disclosed herein has excellent control effect on plutella xylostella, prodenia litura, beet armyworm, pieris rapae, rice leaf folder and other insect pests, and is particularly suitable for various insect pests with resistance. The Azadirachtin preparation disclosed herein has various dosage forms, simple preparation method, and high promotional value.

For creeping stems of lawn grass, one or two buds at the front end of the near growth point can sprout, a plurality of buds at the back end are dormant, only one or two buds at each end of the grass item can sprout, a plurality of buds and internodes become the growth substrate for the sprouting buds at the front end, and the stems and leaves trimmed off can be directly used as the growth substrate of the lawn grass. According to the principle, the invention discloses a method for culturing soil-free lawn in a substrate-free mode. The technical scheme comprises selection of grass seeds, collection of items, paving of an insulating layer, sowing of grass items, water management, nutrient management, lawn trimming, prevention and controlling of diseases, insects and natural grass. The method can save the special lawn-culturing substrate, has the advantages of energy conservation and low carbon, rain wash resistance, quick lawn formation, smooth and dense lawn, strong root system, no soil pollution and short rejuvenation period, and is in accordance with the development trend that the quality requirements of lawn in various urban sightseeing greenbelts and playgrounds are higher and higher.

The invention provides a method for covering iron plaques on root surfaces of a water planting root system of wetland plants. The method comprises the following steps of (S1) preparation of iron plaque inducting liquid: performing anaerobic acidification on anaerobic hydrolysis acidification liquid until the pH (potential of hydrogen) value of the anaerobic hydrolysis acidification liquid is equal to 5 and the oxidation reduction potential of the anaerobic hydrolysis acidification liquid is 450-500, and adding ferrous ions with 100-140mg/L in the anaerobic hydrolysis acidification liquid to form the iron plaque inducting liquid; (S2) tissue culture: placing the root system of the plants in complete culture solution and culturing the root system of the plants for 4-7 days; and (S3) replacing the complete culture solution by using the iron plaque inducting liquid, and culturing the root system of the plants for 5-10 days so as to obtain the plants of which the root surfaces of the root system are coated with the iron plaques. The iron plaques with high phosphorus adsorption capacity can be adhered to the root system of the plants cultured by using the method; and the removal rate of phosphorous in sewage can be increased.

The invention relates to a method for preparing high temperature oxidation resisting coating on the surface of a carbon material, and belongs to the technical field of inorganic coating materials for carbon material oxidation protection. A reaction slurry is coated on the surface of the carbon material, is then sintered, then an oxygen blocking layer slurry is further coated, then the carbon material coated with the reaction slurry is further sintered, tetraethoxysilane is further painted, and then the drying operation is carried out. Through regulation of the relative content of refractory metal oxide and resin, the problem of mismatching of internal stress of a gradient coating is solved, microcrack is reduced, the binding force of the coating is enhanced, and the oxidation resistance of the coating is strengthened. A SiC stress release layer and an XC oxygen blocking layer can be mutually enclosed to reduce the microcrack caused by the difference of coefficients of thermal expansion, the melting point of XC is high, the XC is not easily washed by air flow and has a stabilizing effect on the SiC coating so as to prevent the SiC from being washed by the high temperature air flow to drop down; the XC oxygen blocking layer can go through a high-temperature antioxidation test; and a sealing layer is used for filling holes of the oxygen blocking layer.

The invention discloses a method for preparing high temperature-resistant nano AgCl sol, comprising the steps of: a. preparing soluble chloride solution 0.01-0.2 mol/L, mixing it with dispersant 0.01-2 mol/L in the molar mass ratio of 1 to (1-4), and dispersing uniformly at a speed of 400-1000 r/min; b. heating the prepared solution to 25 deg.C-100 deg.C, regulating pH value of solution to 2-9, uniformly dropping in AgNO5 0.05-0.5mol/L and dispersant 0.01-2mol/L in the molar mass ratio of 1 to (0.25-10) at a speed of 0.01-0.1 ml/min, and dispersing uniformly at 1000-1500 r/min for 10-45 min, and processing the prepared nano sol with ultrasonic for 1 h. And its beneficial effect: at a certain temperature, the absorption of nano silver sol on fabric is high, and the nano silver sol is firm to absorb and uneasy to wash out.

The invention discloses a graphene-based anti-corrosive coating material for underwater curing construction and a preparation method thereof. The graphene-based anti-corrosive coating material for underwater curing construction comprises a component A and a component B, wherein the component A is prepared from the following raw materials of modified epoxy resin, epoxy active thinner, nanoparticle/graphene composite material, water-borne phosphate chelating matter, organosilicone resin, and emery; the component B is prepared from the following raw material of cashew nut shell oil-modified phenolic amine resin. The preparation method comprises the following steps of uniformly stirring all components of the component A and the component B; uniformly mixing the component A and the component B according to a weight ratio of (5 to 10):1, so as to obtain the graphene-based anti-corrosive coating material. The graphene-based anti-corrosive coating material and the preparation method have the characteristics that the graphene-based anti-corrosive coating material can be applied to the construction of underwater steel structure surfaces, and be quickly cured under water, and the effect is lasting; by adopting the nanoparticle/graphene composite material in the coating material, the anti-corrosive property is enhanced.

The invention belongs to the technical field of water treatment and discloses a device and a method for coordinating cathode and anode to degrade nitrate on the basis of taking zero-valent iron loadednanometer composite resin as a catalyst. The device comprises an anode, a water inlet pipe, a cathode, zero-valent iron loaded nanometer composite resin and a water outlet pipe; the cathode is a hollow cylinder body; the internal space of the cathode is filled with the zero-valent iron loaded nanometer composite resin uniformly; the cathode and the zero-valent iron loaded nanometer composite resin form a resin column; and the anode is inserted into the internal space of the resin column. The method comprises the following steps: a) synthesizing the zero-valent iron loaded nanometer compositeresin and filling the device with the resin; and b) pumping a nitrate solution taking chlorine salt as electrolyte into the device through the water inlet pipe, switching on the device, applying voltage to perform treatment, and guiding out the output water through the water outlet pipe after treatment. According to the method, the resin serves as a carrier, the zero-valent iron serves as the catalyst, the nitrated is converted into nitrogen under the coordination of the cathode and the anode to be discharged, and important value in the environmental pollution treatment is achieved.

The invention relates to the field of rare earth materials, in particular to a preparation method for nanoscale rare earth oxide powder. The preparation method comprises the steps that a precipitation method is adopted, rare earth material liquid of a nitric acid system or a hydrochloric acid system is taken as raw materials, a precipitant is added, and precipitating, filtering, drying and calcining are performed to obtain the rare earth oxide powder. The preparation method is characterized in that an inorganic dispersant is added before the precipitant is added, and a crystal grain growth inhibitor is added after the precipitant is added. According to the preparation method, the prepared nanoscale rare earth oxide powder is small and uniform in grain, easy to clarify and wash and low in production cost and can be produced on a scale on the basis of the precipitation method on the condition that special equipment is not added, it can be seen that the grain size of the powder is below 70 nanometers through electronic microscopy scanning, and production use is met.

The invention relates to a subgrade filling method, and particularly relates to a subgrade filling method by using sea sand as a filling material. The method comprises the steps of laying-out a king pile and side piles, transporting the sea sand, paving a temporary transport service road, unloading materials, removing materials for the temporary transport service road after materials are loaded and unloaded, rough leveling with a bulldozer, fine leveling with a land leveler, watering to realize saturation, performing vibration rolling, measuring height, measuring the compaction degree, and performing the next sea sand soil subgrade construction after the compaction degree is qualified. The method can perform sea sand filling rapidly and efficiently and greatly increases construction efficiency. Quality of the subgrade is good after the construction, and quality of the soil slope is good.

The invention belongs to the technical field of seedling cultivating, and relates to a cuttage seedling cultivating method of Ligustrum sinense cv. Variegatum. The method includes the steps of selecting a semi-lignified annual branch of a parent, shearing the annual branch into a cuttage branch 8 cm to 10 cm long, keeping 2 to 3 buds and 2 to 4 leaves, shearing the upper end of the cuttage branch flat, obliquely shearing the lower portion 1 cm to 1.5 cm away from the bud above to form a smooth shear opening, inserting the cuttage branch into a sterilized perlite and turfy soil mixed medium after placing the cuttage branch into a culture solution to be soaked for 1 hour to 2 hours, and conducting bare-root transplanting 40 days to 45 days after the cuttage branch is cultivated in the sterilized perlite and turfy soil mixed medium. The mixed medium formed by perlite and turfy soil according to the weight ratio of 5:1 is adopted as the cuttage medium, and the method is high in breathability and moisture absorption performance, low in cost, beneficial to root system growth and high in rooting rate; through the soaking process, cutting slips are soaked in the nutrient solution for 1 hour to 2 hours, and therefore roots of the cutting slips have sufficient time to absorb nutrients in the nutrient solution and are then cut into the well-prepared mixed medium, root nodules are formed 5 days to 7 days later, rooting is achieved 13 days to 15 days later, the bare-root transplanting can be achieved 40 days to 50 days later, the survival rate is high and can reach 95% or above, and the seedling establishment cycle is short.

The invention discloses a preparation for preventing and controlling crop bacterial wilt and a preparation method thereof. The preparation consists of the following raw materials: brassinolide, magnesium sulfate, ferrous sulfate, boric acid, compound amino acid, alcohol and water. The preparation method comprises the following steps of: dissolving the brassinolide into the alcohol; adding ethyoxyl trisiloxane; mixing uniformly to obtain a solution; mixing the obtained solution with the magnesium sulfate, ferrous sulfate, boric acid and compound amino acid; and adding water for fixing a volume to obtain the preparation for preventing and controlling crop bacterial wilt. The preparation for preventing and controlling crop bacterial wilt can be used for promoting the synthesis of reduced glutathione, increasing the activity of resistance enzymes, activating the expression of resistance genes, enhancing the resistance of crops, preventing bacterial from invading crops, effectively suppressing the growth of ralstonia solanacearum, remarkably relieving the mobidity extent of bacterial wilt, relieving the bacterial wilt of plants by over 54 percent, and fundamentally reducing economic loss caused by crop morbidity.

The invention discloses a spinning shell fabric with a strip jacquard weave style. In the spinning shell fabric, warp threads and weft threads are interweaved to form plain weave units and satin weave units, and the plain weave units and the satin weave units are arranged alternately in the transverse or longitudinal direction, so that the spun shell fabric achieves the jacquard weave effect of arranging vertical strips or transverse strips alternately in a staggered mode, wherein the warp threads are made of 20-daniel single-hole polyamide yarns, and the weft threads are made of 60-count tencel viscose blended yarns. The spinning shell fabric with the strip jacquard weave style is simple in weaving processes, comfortable, environment-friendly, good in functions of moisture absorption and sweat relieving and low in cost.

The invention discloses a core-spun yarn with a rabbit hair imitation effect and a preparation method thereof. The core-spun yarn comprises an outer yarn and a core yarn, wherein the outer yarn is prepared from viscose fiber, common nylon staple fiber and special-shaped nylon staple fiber in the ratio of 72 to 14 to 14; the core yarn is 50 DPBT low elastic filament. Compared with the prior art, the core-spun yarn has the advantages that (1) the core-spun yarn has a rabbit hair imitation appearance, the characteristics of high strength, less hairiness and the like of the yarn are realized at the same time, the defects of low strength and poor spinnability of rabbit hair are overcome, fabrics made by the core-spun yarn are insusceptible to hair drop, pilling and deformation and are easy to wash, and the production cost is lowered at the same time; (2) in the method, the arrangement of three kinds of fibers in the outer yarn can be controlled by transferring fibers in the spinning process, and the rabbit hair imitation appearance of the yarn is realized finally.

The invention discloses a high molecular antistatic agent and a preparation method thereof. The high molecular antistatic agent is a copolymer which is formed by polymerizing a benzene ring monomer and a polymer, wherein the benzene ring monomer contains sulfo and carboxyl, and the polymer contains a polyether block and a polyamide block; the end groups of the polyether block and the polyamide block are carboxyl; the monomer and the polymer are synthesized into the high molecular polymer under the vacuum condition. The high molecular antistatic agent has the advantages that the durability, heat-resistant property, compatibility and antistatic property are excellent; the high molecular antistatic agent is mainly applied by being added into matrix resin, and is an internal millable type antistatic agent.

The invention relates to a traditional Chinese medicine composition for treating periodontitis. The composition comprises the following active pharmaceutical ingredients in parts by weight: 200-800 parts of halite, 150-600 parts of tortoise shells, 50-300 parts of Sichuan lovage rhizome, 50-200 parts of nutgrass galingale rhizome, 50-200 parts of pricklyash peel, 50-200 parts of cortex pseudolaricis, 50-150 parts of cortex phellodendri, 30-150 parts of radix angelicae dahuricae, 50-100 parts of fructus amomi villos, and 10-50 parts of mint. The invention provides a traditional Chinese gel preparation of the traditional Chinese medicine composition, and a preparation method thereof. The traditional Chinese medicine composition has a desirable effect on treatment of periodontitis, the traditional Chinese medicine gel preparation is good in absorption effect, and good in adaptability of patients, and the dosage is easily controlled.