110results about How to "Improve suspension ability" patented technology

The invention provides a temperature-resistant and salt-resistant polymer clean fracturing fluid thickening agent and a preparation method thereof. The temperature-resistant and salt-resistant polymer clean fracturing fluid thickening agent has the advantages of cleanliness, low damage, environmentally friendly characteristics, good viscosity increasing effects, very strong suspension properties,good thermal adaptability allowing a super-wide temperature range of 25 to 240 DEG C, good salt resistance, excellent shear stability, small frictional resistance, obvious fracture effects, long lasting time spent on production after compression, and good cost performance.

The invention discloses a vehicle double-layer high-temperature superconductor magnetic suspension system, which is characterized by comprising a track and a low-temperature container, wherein the track is made of permanent magnet, a magnetic flux gathering material and the like; the low-temperature container is fixedly arranged in a vehicle body frame; and a high-temperature superconductor layer is fixedly arranged in the low-temperature container and is designed into two layers which are formed by overlapping a lower layer block 103a and an upper layer block 103b. According to the vehicle double-layer high-temperature superconductor magnetic suspension system, by additionally arranging the upper superconductor layer, the aim of simultaneously increasing the suspension force and the guidance force performance of the original single-layer suspension layer can be fulfilled; and the vehicle double-layer high-temperature superconductor magnetic suspension system can be used for optimizing the conventional single-layer high-temperature superconductive magnetic suspension system and improving the load carrying capacity and the stability performance of a superconducting maglev train.

The invention discloses a type of construction slurry for rotary pile drilling. The slurry is a type of compound slurry comprising water, bentonite, hydroxypropyl methyl cellulose solution, clay and soda ash. The construction slurry provided by the present invention can be widely applied in fields of well drilling, rotary pile drilling, and underground diaphragm wall. During a preparing process, the slurry can be mixed quickly and well. The slurry also has advantages of high efficiency, low pollution, low energy consumption and low cost.

The invention discloses an attapulgite clay suspension agent, which mainly comprises attapulgite clay, other clays, chitosan and alkyl quaternary ammonium salt which serve as raw materials. The attapulgite clay suspension agent has the characteristics of high dispersibility and suspending power in water, has high dispersibility and suspension property in an ethanol solvent, and can be used as a suspended anti-settling agent, a thickening agent, a rheological aid and the like.

The invention relates to a pavement crack repairing material, in particular to an environment-friendly type pavement heating sealant material which is characterized by being prepared from the following raw materials in parts by weight: 50-70 parts of petroleum asphalt, 7-10 parts of an SBS modifier, 5-8 parts of an SBR modifier, 10-30 parts of waste tire rubber powder, 3-8 parts of natural rock asphalt, 5-20 parts of a phase solvent, 1-4 parts of polyester fiber, 2-5 parts of lignin fiber, 0.1-0.5 part of a cross-linking agent and 10-30 parts of a filling material. The environment-friendly type pavement heating sealant material is adopted for sealing and repairing cracks and joints of common roads, expressways and airfield runways, permeation and fusion of a sealant with an asphalt pavement at high temperature can be achieved, and the environment-friendly type pavement heating sealant material is sufficient in elasticity and free of over-flowing or tire adhesion; after being cooled, the environment-friendly type pavement heating sealant material is good in binding power, and can have elastic deformation along with expansion and shrinkage of cracks due to the relatively good elasticity.

The invention discloses a high-temperature-resistant saturated brine drilling fluid and a preparation method thereof. The drilling fluid contains 100 parts by weight of water, 2-5 parts by weight of salt resistant soil, 1-3 parts by weight of sepiolite, 10-15 parts by weight of a high temperature and salt resistant fluid loss agent, 1-2 parts of a high temperature and salt resistant diluent, 0.5-2 parts by weight of a high temperature resistant stabilizer, and 35 parts by weight of sodium chloride. The preparation method of the drilling fluid comprises the following steps: respectively adding the salt resistant oil and sepiolite to water, stirring for 20min, ageing for 24h, sequentially adding the high temperature and salt resistant fluid loss agent, the high temperature and salt resistant diluent, the high temperature resistant stabilizer and sodium chloride, and stirring under a speed of 8000r/min to obtain the drilling fluid. The materials of the drilling fluid are convenient to use, can be directly mixed with water, and is stirred for drilling. The drilling fluid has the advantages of good rheological property, strong inhibition performance, realization of the salt resistance saturation in the high temperature environment, realization of the HTHP fluid loss of below 35mL, and benefiting for the hole wall stability and the drill safety.

The invention discloses an ecological floating bed for oil-polluted water remediation. The main frame of the ecological floating bed comprises multiple assembled casing supports. Joints of the casing supports of the main frame are connected to matched PVC casing pipe joints and the joint openings are sealed by silica gel. A modified TiO2 photocatalytic material is carried by waste polyurethane foamed plastic recovered and recycled by an alcoholysis method so that the casing supports are prepared. The bottom of the main frame is wrapped by a non-woven fabric. Wrapped parts of the non-woven fabric and the main frame are tightened by a nylon rope. In each unit, a certain amount of a bottom filler layer and an upper filler layer are uniformly laid. Crops are planted in the upper filler layer. The paddy rice sprout on a floating bed can fully absorb redundant nitrogen and phosphor in water so that plant growth is promoted, the plant roots can promote floating bed bottom microbe growth so that floating bed water purification effects are improved, and the modified fly ash and the non-woven fabric have strong adsorptivity. The floating bed has three technology advantages and improves oil pollutant adsorption degradability and cleaning effects.

The invention discloses a hair care composition containing the following ingredients, by weight percent, of: 0.2-10.0% of cationic surfactant, 0.1-15.0% of high melting-point aliphatic compound, 0.2-8.0% of lower alkylol and water as the balance. The invention further discloses a preparation method of the hair care composition. The hair care composition can ameliorate hair quality, care hair, endow wet hair with excellent spreadability and smoothness, enhance softness and lubrication of dry hair and lower production cost. The preparation method of the hair care composition leads the composition to higher yield stress, emulsion suspension ability and electrolyte resistance.

The invention relates to the technical field of a mixed rare-earth oxide and a preparation process thereof and particularly relates to efficient glass polishing powder and a preparation method thereof. The polishing powder comprises a rare-earth oxide, wherein the rare-earth oxide comprises a lanthanum oxide or a cerium oxide; and a crystal lattice of the rare-earth oxide contains a non-rare-earth element catalyst with a lower oxidation-reduction potential. The polishing powder further contains metal ions. The product disclosed by the invention has the advantages of strong suspension, difficulty of depositing, good dispersion stability, stable polishing effect, low surface defects and no scratches formed by polishing; the flattened polishing efficiency can be effectively improved and the polishing efficiency can reach to 1300 nanometers/minute; and damage to a polishing machine is not easy to cause.

The invention relates to ultra-low temperature resistant calcium-based low-solid drilling fluid for drilling in permafrost or severe cold areas. The ultra-low temperature resistant calcium-based low-solid drilling fluid is composed of 100 parts of water, 10-30 parts of calcium chloride, 1-10 parts of multifunctional complexing agent, 0.5-2.0 parts of viscosity reducer, 0.1-1.0 parts of filtrate reducer, 1-5 parts of lubricant and 1-3 parts of antifoaming agent. The drilling fluid provided by the invention has good rheological property in an ultra-low temperature environment and quite good wall protection capability and carrying ability, thereby providing a technical support for drilling constructions in permafrost and severe cold areas in winter of our country.

The invention provides a self-suspension hydrofracturing coated proppant with a targeting function as well as preparation and application. The proppant comprises: A particles existing in the quantityof 70%-99.99% of total weight of the proppant and B a nanoparticle enhanced porous composite coating which coats the surfaces of particles and exists in the quantity of 0.01%-30% of total weight of the proppant, and the nanoparticle enhanced porous composite coating comprises nanoparticles (preferably, the weight of nanoparticles is 1%-50% (preferably, 10%-20%) of total weight of the nanoparticleenhanced porous composite coating) and a porous composite. Compared with a functional coated proppant produced by a traditional process, the method has the advantages that materials such as resin usedin the method come from industrial production, the nanoparticles are creatively added to improve performance of the proppant, and the method has more simplified operation process and more saved production cost.

The invention discloses a method for preparing and constructing a pipe die coating and belongs to the technical field of centrifugal casting pipes. The method for preparing the pipe die coating mainly comprises the following steps: preparing mud, preparing a stock solution, preparing a sizing liquid and preparing a final coating. The method for constructing the pipe die coating mainly comprises the following steps: heating a pipe die, cleaning the pipe die and spraying paint. The method for preparing and constructing the pipe die coating has the beneficial effect that the coating with lower gas forming amount, higher strength, stronger suspension property and better demoulding performance is successfully developed by optimizing a coating preparation process; the forming acceptability and appearance quality of the pipe are improved by optimizing a coating construction process; the forming acceptability of the pipe is maintained to be about 99.5%; and the surface roughness of the pipe is below gradient 25.

The invention discloses an alcohol-soluble slickwater system for fracturing as well as a preparation method and application of the alcohol-soluble slickwater system, and relates to the technical fieldof acid fracturing agents. The slickwater system is composed of the following components in percentage by weight: 20.0-60.0% of a polyacrylamide polymer, 0.5-4.0% of nano particles, 0.1-3% of a surfactant, and the balance of organic alcohol.

The invention relates to a method for plug removal of a triassic oil reservoir in a nitrogen foam acidification mode. The method comprises the steps that 3 steres of prepad fluid is injected in from a tool oil tube, a sliding sleeve matched steel ball is thrown, 12MPa pressure is applied to set a packer, and pressure is applied continuously to reach 16 MPa to open a sliding sleeve; the rest prepad fluid is squeezed into the triassis oil reservoir in the discharge capacity of 0.2-0.4m<3>/min from the tool oil tube, and nitrogen is mixed in the prepad fluid in the discharge capacity of 20m<3>/min; all working liquid is squeezed into the triassis oil reservoir from the tool oil tube in the discharge capacity of 0.2-0.4m<3>/min, and the nitrogen is mixed into the working liquid in the discharge capacity of 20m<3>/min; all prepad fluid is squeezed, and active water of the volume of the tool oil tube is squeezed; after 1 hour of shut-in reaction, open flow is controlled to be conducted. According to the method for the plug removal of the triassis oil reservoir in the nitrogen foam acidification mode, the reaction speed of foamed acid and rock is low, the loss of acid liquid is small, the penetration depth of the acid liquid can be better improved, and deep acidification is achieved; an oil-water layer can be selected, and temporary plug can be formed to a high permeability layer and a water layer so that the acid liquid can enter a low permeability layer and an oil layer; solid particles can be brought out of the ground.

The invention provides polymer cement waterproof slurry prepared from superfine cement, belonging to the field of building materials. The polymer cement waterproof slurry comprises powder and liquid, wherein the liquid contains 80-100 parts of styrene-acrylic emulsion, 1-3 parts of defoaming agent, 1-3 parts of preservative and 50-150 parts of water by weight; the powder contains 300-350 parts of superfine cement, 150-200 parts of calcium carbonate, 100-150 parts of quartz sand and 0.1-5 parts of aid by weight. The polymer cement waterproof slurry has the effects of avoiding the phenomenon of sand sedimentation and further densifying skeleton structures.

The invention discloses a self-suspending proppant for hydraulic fracturing and a preparation method thereof. The self-suspending proppant comprises the following components in parts by weight: 100-1000 parts of a fracturing proppant, 30-200 parts of a thickening agent, 1-100 parts of acryloxy sorbitan sulfonate and 1-50 parts of a modifier. Sulfonic acid groups on the acryloxy sorbitan sulfonateare adsorbed to the surface of the proppant, double bonds at the other end and active groups of the thickening agent are tightly connected under the action of chemical bonds, so that the surface of the proppant is uniformly coated with the thickening agent more tightly and the thickening agent is unlikely to fall off; meanwhile, the spacial steric hindrance of the thickening agent can be increased, the thickening agent is more fluffy, the contact area between the thickening agent and water during dissolution is increased, the dissolution speed of the thickening agent is higher, and a fisheye phenomenon is unlikely to form.

The invention discloses mullite/magnesia composite alcohol-base casting paint. The mullite/magnesia composite alcohol-base casting paint is characterized by comprising the following raw materials in parts by weight: 65 to 85 arts of mullite, 20 to 30 parts of magnesia, 15 to 20 parts of expanded perlite, 1 to 3 parts of palygorskite clay, 3 to 6 parts of rosin, 0.5 to 0.8 part of magnesium hydroxide, 0.3 to 0.6 part of urea, 1 to 3 parts of rock wool leftovers, 12 to 15 parts of corn straw, 3 to 5 parts of phenolic resin, 4 to 6 parts of hexamine, 45 to 60 parts of ethanol and 3 to 6 parts of additives. The rock wool leftovers are used as a heat-preserving material, and other appropriate additives are also added, so that the prepared paint is high in heat preserving property, flame retardant property, adhesion property, coating property and suspension property. The paint also can prevent the paint from being oxidized, so that the surface of a casting is smooth and free from a sand hole and a crack.

The invention discloses a negative oxygen ion inducing functional powder and an auxiliary agent and a preparation method thereof. The preparation method of the negative oxygen ion inducing functionalpowder comprises the following steps: baking and drying ion adsorption type rare earth ores, magnesium-rich fibrous silicate and hydrous magnesium silicate; extracting the baked and dried magnesium-rich fibrous silicate and ion adsorption type rare earth ores by using an acidic extractant, and executing baking at high temperature after extraction to remove radioactive elements; heating amorphous silicon dioxide to reduce the content of soluble silicic acid in the amorphous silicon dioxide; crushing and evenly mixing the hydrous magnesium silicate, the magnesium-rich fibrous silicate, the ion adsorption type rare earth ores and the silicon dioxide to obtain the negative oxygen ion inducing functional powder. The raw material cost of the negative oxygen ion inducing functional additive is low, and the produced negative oxygen ion inducing functional powder can be added into different fabrics to continuously ionize and induce negative oxygen ions into a space, the induction amount is 1200-2500/cm<3>, the living space of people can be improved, and air and environment can be purified.