98results about How to "Change rheology" patented technology

The invention relates to a fracturing technology for implementing the ultrahigh flow conductivity, which comprises the following steps: 1, judging whether geomechanics parameters of a target reservoir is suitable for the fracturing technology disclosed by the invention or not; 2, judging whether completion perforation of a target well is suitable for the fracturing technology disclosed by the invention or not, and if no, changing a perforating scheme of a well bottom; 3, before fracturing, selecting related fracturing materials; 4, carrying out fracturing on the target well by using a unique pumping program of the fracturing technology disclosed by the invention. According to the fracturing technology, proppant struts are formed in a stratum; flow conductivity of a stratum fracture is not improved by a filling layer of a proppant, but oil gas passes through by passages between the proppant struts; the flow conductivity is obviously improved by the open flowing passages; the flow conductivity of an existing conventional fracturing technology is not more than 200mum<2>*cm generally, but the flow conductivity of the fracturing technology for implementing the ultrahigh flow conductivity, which is disclosed by the invention, is higher than that of the conventional fracturing technology by 1 to 3 orders of magnitude; the fracturing technology reduces a pressure drop in the fracture, is helpful for improving drainage capacity and increases the effective fracture half-length and the production increase volume of the reservoir so as to improve yield.

The invention belongs to forming range of three-dimensional structure, and particularly relates to a direct-writing forming method of printing and converting a precursor into ceramic. The method includes: using a ceramic precursor as a solute, dissolving the ceramic precursor in liquid-state organic matter, stirring raw materials to obtain ink with certain viscoelasticity, and putting the ink intoa needle cylinder; through an air pressure controller and according to a set program, printing out a three-dimensional structure on a substrate layer by layer, and carrying out precursor conversion to obtain ceramic with a complex three-dimensional structure. The direct-writing forming method overcomes the defect that existing direct-writing forming ceramic suspensions are prone to nozzle blockage, low in continuity and unstable in slurry in the process of forming. The designed slurry is simple and reasonable in composition, high in rheological controllability and convenient for large-scale industrial application. A three-dimensional periodic structure prepared by the method is wide in scale range, and decimeter-scale, centimeter-scale, millimeter-scale, micrometer-scale or nanometer-scale control can be realized simply through adjusting aperture of a needle head.

The invention discloses high-density cement slurry suitable for shale gas cementing. The high-density cement slurry is prepared from the following raw materials in parts by weight: 100 parts of cement, 44-57 parts of fresh water, 15-120 parts of a weighting agent, 0-30 parts of a weighting stabilizer, 30-40 parts of a high-temperature strength stabilizer, 3-5 parts of an elasto-plastic agent, 4-7 parts of a fluid loss agent, 1-2.5 parts of a retarder and 0.5-2.5 parts of a dispersant. The preparation method comprises the following steps of weighing the cement, the fresh water, the weighting agent, the weighting stabilizer, the high-temperature strength stabilizer, filler, the elasto-plastic agent, the fluid loss agent, the retarder, the dispersant and a defoaming agent according to the ratio; mixing the components, and stirring to obtain the high-density cement slurry suitable for shale gas cementing. The high-density cement slurry is easily pulped at normal temperature and is good in high-temperature sedimentation stability, capable of improving the breaking strength, shock resistance and toughness of hardened cement slurry, relatively wide in density adjustable range and capable of meeting various shale gas cementing requirements.

The invention provides a soap-free acrylic acid latex, and a preparation method thereof and application in water-based ink. On one hand, a polymeric surfactant can be used to replace the prior surfactant during the reaction process; and after the latex is dried and forms a film, compounds with low molecular weight are reduced greatly and the water resistance of the film is effectively improved. On the other hand, protective glue is introduced into the reaction process to change the rheological property of the latex, and the rheological property of the latex is close to that of Newtonian liquid; simultaneously, the protective glue can also further improve the mechanical stability of the latex and make the latex more suitable for the water-based ink.

The invention relates to VO2 powdery stable suspension with average particle diameter 70nm used (NaPO3)6 as dispersant. Anionic polyelectrolyte makes the VO2 powdery isoelectric point reduce. Ultrasonic dispersion improves the dispersant distribution on particle surface to obviously change the suspension rheological property. It is proved by detecting suspension Zeta electrical potential that the (NaPO3)6 can greatly increase particle surface electric quantity. While pH is 10, the VO2 powdery suspension is stable; the optimum use level of the (NaPO3)6 dispersant is 0.8wt%.

The invention belongs to the field of molding of three-dimensional structures and specifically relates to a preparation method of a bionic porous ceramic with a complex three-dimensional structure. The preparation method comprises the steps: dissolving a ceramic precursor into a solvent, and carrying out a partial crosslinking reaction to obtain direct writing slurry; degasifying the direct writing slurry, and then, carrying out direct writing molding in an environment of an oriented cold field; and then, carrying out processes such as freeze-drying and crosslinking-cracking to obtain the bionic porous ceramic with the three-dimensional structure. By using the preparation method, the efficient combination of a direct writing molding technology and a freeze-pouring technology is firstly realized; and the limit of a traditional preparation technology on the aspect of achieving a multi-scale hole structure and the complex three-dimensional structure is overcome.

The invention relates to an ultrasonic assisted powder injection molding device and method. The device comprises an internal mixing device and an injection molding device. An internal mixing cavity is formed inside a shell of the internal mixing device, and a feeding hole communicated with the internal mixing cavity is formed in the surface of the shell. A rotor is arranged in the internal mixing cavity of the internal mixing device. A pressing weight is arranged at the feeding hole and is suitable for sealing the feeding hole. The injection molding device comprises a threaded rod injection molding machine and an injection mold. The feedstock obtained by internal mixing through the internal mixing device is injected into the injection mold through the threaded rod injection molding machine, and blanks are obtained by molding. A first energy converter is connected with the internal mixing device, and a second energy converter is connected with the injection mold. The first energy converter and the second energy converter are connected with an ultrasonic generator respectively, and are suitable for driving the internal mixing device and the injection mold respectively for supersonic vibration. The ultrasonic assisted powder injection molding device and method can effectively remove the agglomeration phenomenon in the mixing process and lower the mixing temperature, and are especially suitable for the feedstock made of metal or ceramic powder, of irregular shapes or high-carrying capacity, which is hard to inject.

The invention relates to a three-dimensional ink for wall paper. The three-dimensional ink is prepared from the following raw materials in parts by weight by adding the raw materials into an agitating vessel and uniformly mixing and stirring the raw materials: 100 parts of acrylic resin emulsion, 0.1 to 25 parts of a filler, 0 to 15 parts of a pigment, 1 to 20 parts of thermal expansion micro-balloons, 0.5 to 10 parts of a film-forming agent, 0.5 to 3 parts of a defoaming agent and 0.5 to 2 parts of a thickening agent, wherein the filler is titanium pigment, and the pigment is an organic tinting pigment. The preparation method of the three-dimensional ink for wall paper comprises the following steps of: taking the raw materials in parts by weight, firstly adding the acrylic resin emulsion into the agitating vessel, adding the titanium pigment into the acrylic resin emulsion, and agitating the mixture uniformly; grinding the mixture of the titanium pigment and the acrylic resin emulsion in the agitating vessel by using grinding equipment; adding the film-forming agent, the defoaming agent and the thickening agent into the agitating vessel, and agitating the mixture uniformly; adding the thermal expansion micro-balloons into the agitating vessel, and agitating the mixture uniformly; and finally, adding the organic tinting pigment into the agitating vessel, and agitating the mixture uniformly to obtain the three-dimensional ink for wall paper.

The present invention relates to a kind of medicine for treating hyperlipermia and its preparation process. The medicine is prepared with prepared fleeceflower root, haw, lotus leaf, oriental water plantain, cattail pollen and fried cassia seed in certain proportion. The medicine is especially suitable for the clinical treatment of hyperlipermia and has excellent improving effect on dizziness, numbness of limbs and fullness sensation in chest.

The invention provides a polymer melt shear vibration extrusion molding device which comprises an extruding machine 13, an extrusion head 1 connected with the extruding machine through a flange plate, a mouth mould 12, a stock mould 14, a cooling water tank 15, a traction device 16 and a cutting device 17, and is characterized by further comprising a crank connecting rod shear vibration system 18 and a melt runner vibration chamber 2, wherein the crank connecting rod shear vibration system 18 is arranged above the extrusion head 1; the melt runner vibration chamber 2 is arranged inside the extrusion head 1; the crank connecting rod shear vibration system is composed of a crank connecting rod mechanism and a reciprocating vibration rod 3; the reciprocating vibration rod 3 is positioned in a through hole 9 formed in the extrusion head 1; the through hole 9 is communicated with the melt runner vibration chamber 2. The device provided by the invention not only can simultaneously promote polymer molecule chain orientation, shish-kebab structure generation and polymer crystalline grain refinement, and improve mechanical property of products, but also can reduce extrusion resistance and improve production efficiency.

The invention relates to a high-flame retardation solar energy cell organosilicon pouring sealant and a preparation method thereof. The high-flame retardation solar energy cell organosilicon pouring sealant comprises the following raw materials in parts by weight: 40 parts of methyl phenyl vinyl silicone rubber, 20 parts of room-temperature sulfured phenylene silicone rubber, 20 parts of addition-type heat vulcanized nitrile silicone rubber, 20 parts of phosphate silicone oil, 20 parts of polyoxypropylene glycerol ether silicone oil, 10 parts of mercapto silicone oil, 5 parts of low-molecular hydroxy silicone oil, 5 parts of hydrogen-containing silicone oil with hydrogen containing amount accounting for 0.5% of mass content, 10 parts of an ethene-vinyl acetate copolymer, 10 parts of otcamethylcyclotetrasiloxane-modified acrylic resin, 7 parts of hydrogenated castor oil, 1-3 parts of an adhesion agent, 1-3 parts of a strengthening agent, 0.1-0.4 parts of a catalyst, 1-3 parts of a silicon nitrogen cross-linking agent, 0.5-2.5 parts of an inhibitor, and 1-2 parts of a flame-retardation filling material.

The invention belongs to the technical field of preparation of building materials, and concretely relates to an anti-radiation concrete and a preparation method thereof. The preparation method comprises the following steps: mixing and crushing graphite and barite, carrying out sealed fermentation on the obtained crushed mixture and biogas slurry to obtain a fermentation product, centrifuging and sterilizing the fermentation product to obtain a modified filler, mixing and heating methylallyl alcohol, boric acid and anhydrous ether, reacting the obtained heated mixture with a sulfuric acid solution to obtain a product, distilling the product to obtain a methyallyl borate mixture, reacting and distilling the methyallyl borate mixture, N-hydroxymethylacrylamide and toluene to obtain an anti-segregation agent, mixing cement, the modified filler and fibers, stirring the obtained mixture, the anti-segregation agent, a water reducer and water, injecting the finally obtained mixture into a die, carrying out vibration molding, and demolding and curing the molded mixture to obtain the anti-radiation concrete. The anti-radiation concrete obtained in the invention has the advantages of good anti-segregation and anti-radiation performances, effective improvement of the construction performances of concrete, high mechanical strength, and effective prolongation of the service life of concrete buildings.

The invention discloses underwater dispersion-resistant porous concrete with a large particle size. The underwater dispersion-resistant porous concrete comprises the following raw materials: aggregate, cement, mineral admixture, water and a thickener, wherein a mass ratio of the sum of the cement and the mineral admixture to the aggregate is 0.19-0.23; the mineral admixture is micron silicon powder and nano calcium carbonate, wherein the micron silicon powder accounts for 0%-10% of the cement, and the nano calcium carbonate accounts for 0%-1% of the cement; the thickener accounts for 2%-4.5% of the sum of the cement and the mineral admixture; the aggregate is graded aggregate with the particle size of 5mm-20mm; and water accounts for 0.25-0.35 of the sum of the cement and the mineral admixture. The invention further discloses a preparation method of the concrete. The concrete has underwater dispersion-resistant self-leveling property and is not isolated under vibration and underwater environment, and uniform in hole structure uniformity. As a pile body material, the underwater dispersion-resistant porous concrete can realize rapid pulling of a sleeve during vibration immersed tube method construction, generates little disturbance on soil around the pile and does not have pile breakage and hole shrinkage; moreover, the underwater dispersion-resistant porous concrete has good anti-blocking ability.

The invention relates to a surfactant composition for oil recovery and a preparation method of the surfactant composition. The surfactant composition is characterized by comprising the following components in percentage by weight: 30%-50% of a nonionic surfactant, 20%-30% of a wetting agent, 15%-25% of a pH value regulator, 3%-6% of a Tween type surfactant and 10%-15% of deionized water. The preparation process is as follows: sequentially adding the deionized water, the nonionic surfactant, the wetting agent, the pH value regulator and the Tween type surfactant into a stirring reactor, and stirring to obtain a liquid product. The surfactant composition for oil recovery, provided by the invention, can effectively reduce tension of an oil-water interface, change the wetting property of rock, enable crude oil adsorbed on the rock to fall off, simultaneously increase the dispersibility of the crude oil in the water, form an oil-in-water type emulsion, greatly change the rheological property and salt tolerance of the crude oil and realize the effect of improving the recovery rate.

The invention relates to a firming cream formula with self corrosion-resistant property. The firming cream formula comprises the following components in parts by weight: A. 47.3 to 82.14 parts of water; B. 1.0 to 6.0 parts of hydrogenated cocoglycerides; C. 1.0 to 3.5 parts of arachidyl alcohol, behenyl alcohol, and arachidyl alcohol glucoside; D. 1.0 to 3.0 parts of caprylic/capric triglyceride and spilanthes acmella flower extract; E. 1.0 to 1.50 parts of peony anti-corrosive agent; F. 1.0 to 3.0 parts of fennel anti-corrosive agent; G. 0.30 to 0.50 parts of glycerol caprylate. By adopting the scheme, the firming cream formula has the advantages that the components are reasonable, the effects of maintaining moisture, resisting inflammation and nourishing are realized, the self corrosion-resistant property is realized, and the like.

The invention discloses a hydrophobic association water-soluble xanthan gum and a preparation method and an application thereof. According to the modified xanthan gum, DMF is adopted as a reaction medium and octadecyl isocyanate is adopted as a modifier; the isocyanate group in octadecyl isocyanate reacts with the hydroxyl group (-OH) in xanthan gum molecules so that a long alkyl chain is introduced into xanthan gum molecules, thus obtaining the hydrophobic association water-soluble xanthan gum with surface activity and bactericidal property. The method has the advantages of mild reaction conditions, use of easily available raw materials, high reactant conversion rate, and convenient product post-treatment. The hydrophobic association water-soluble xanthan gum has better temperature resistance, better salt resistance, better aging resistance and lower surface tension. With the relatively low surface tension, stratum surface wettability can be changed, dispersion of crude oil in water can be enhanced, and the rheological property of crude oil is changed.

The invention discloses an elastic emulsion for water-based ink, which is prepared by the following raw materials comprising, by weight, 5 to 8 parts of styrene, 3 to 5 parts of ethyl acrylate, 32 to 35 parts of butyl acrylate, 1 to 2 parts of itaconic acid mono-n-butyl ester, 1 to 2 parts of N-hydroxymethyl acrylamide, 5 to 10 parts of acrylic ester resin liquid, 0.05 to 0.1 part of sodium bicarbonate, 2 to 3 parts of composite emulsifying agent, 0.35 to 0.5 part of composite initiating agent and 35 to 45 parts of deionized water. The invention further discloses a preparation method of the elastic emulsion for the water-based ink and the water-based ink utilizing the elastic emulsion. The water-based ink prepared by utilizing the elastic emulsion serving as a binder has good rheological property, printing adaptability and folding resistance, and the elasticity is good after a film is formed.

The invention relates to a preparation method of spirulina kinase-rich health-care food. The preparation method comprises the following steps: 1) adding shell-broken spirulina into water to obtain spirulina fermentation substrate and sterilizing; 2) inoculating the spirulina fermentation substrate with bacillus subtilis, and performing deep liquid ventilation and fermentation; 3) inoculating fermented liquor with saccharomycetes, and performing low-temperature standing and fermentation; and 4) performing low-temperature vacuum concentration on the standing and fermented liquor, drying and crushing, thus obtaining the spirulina kinase-rich health-care food. The invention further discloses a spirulina kinase health-care food prepared by adopting the spirulina kinase fermentation product. The spirulina kinase health-care food not only has higher spirulina kinase activity, but also the finished spirulina has small fishy smell, is good in mouthfeeling, and is easily accepted by people. Compared with the traditional spirulina tablets, the thrombolysis and thrombus preventing, blood lipid regulation and hemorrheology change characteristics can be greatly improved.

The invention discloses low-modulus elastic sealant and a preparation method thereof. The low-modulus elastic sealant is made from, by weight, 20-25 parts of trimethoxysilylpropylaminocarbamate-terminated polyether, 10-20 parts of a plasticizer, 20-30 parts of calcium carbonate, 20-40 parts of active calcium carbonate, 1-5 parts of fumed silica, 1-2 parts of silane coupling agent a171, 0.5-1 partof silane coupling agent kh550, 0.5-1.5 parts of a photostabilizer, 0.5-1.5 parts of an antioxidant, and 0.2-0.3 part of a catalyst. The preparation method includes: stirring the plasticizer, calciumcarbonate and active calcium carbonate, removing water and foam in vacuum, mixing with fumed silica, silane-modified polyether and a water remover, and allowing reacting; mixing with a catalyst, an adhesion enhancer and an antioxidant at the temperature of less than 40 DEG C, allowing reacting, and defoaming in vacuum so as to obtain the sealant having excellent overall performance.

The invention provides a hydrophobic associated polymer, as shown in formula (I), y = 0.001 to 0.1, z = 0.03 to 0.3, x + y + z = 1; A is a group formed by copolymerizing hydrophobic monomers; the hydrophobic monomer is selected from one or more of allylic alkyl quaternary ammonium salt, acrylamide alkyl sulfonic acid and sulfonate thereof, alkylphenol ethoxylate acrylate and polyoxyethylene alkyl acrylate. Compared with the prior art, the monomeric unit of acrylamide in the hydrophobic associated polymer can provide a hydrophilic group for the hydrophobic associated polymer; the monomeric unit of the hydrophobic monomer can provide a hydrophobic side group for the hydrophobic associated polymer, and hydrophobic groups gather in water due to a hydrophobic interaction to form a spatial network structure; the solubility of the hydrophobic associated polymer can be improved and the rheological properties of the polymer can be changed by the monomeric unit of sodium acrylate; under the combined action of three units, the temperature resistance, salt tolerance and shear resistance of the hydrophobic associated polymer can be improved.

The invention relates to a method for improving stability of water-coke slurry. The water-coke slurry is prepared from the raw materials, including petroleum coke, activated sludge, water and a dispersing agent. The method comprises the steps of (1) sieving petroleum coke through a sieve, and remaining petroleum coke of which the particle size is less than 0.8mm; (2) dissolving the dispersing agent into water, and uniformly agitating for later use; (3) integrally uniformly mixing the dispersing agent solution obtained in step (2) and activated sludge, pouring into a ball mill tank together with the petroleum coke processed in step (1), wherein the quantity ratio of large balls to small balls in the ball mill tank is 30: 150; a ball mill rotates at the speed of 230 to 380r/min; the ball milling costs 30 to 50 minutes; (4) filtering the slurry obtained by ball milling through a sieve with 40 meshes so as to remove impurities and large particles and obtain water-coke slurry. According to the method, the activated sludge is doped into the water-coke slurry to greatly improve the stability of the water-coke slurry, so that the problem of poor stability of the water-coke slurry can be completely solved; meanwhile, a new treatment way is provided to the activated sludge of a melting plant, and the sludge treatment cost of the melting plant can be reduced.

The invention is a drug to cure hyperlipidemia, combined of the Chinese medicines (weight preparing ratio): Salvia miltiorrhiza 10-20, pseudo-ginseng 10-15 and leech 6-12. It improves micro-circulation to prohibit haematoblast conglutinate and congregate, to promote metabolism, so as to prevent thrombosis to achieve the purpose to effectively cure the hyperlipidemia. It has effects of promoting blood circulation and removing obstruction in channels, expelling stagnation and growing freshness, and blancing Yin and Yang. It is convenient to use and has no toxic side effect.

The invention discloses oil-in-water type menthol ointment and a preparation method thereof. The oil-in-water type menthol ointment comprises glycerol, camphor, menthol, eucalyptus globulus leaf oil, a liquorice extract, vitamin E, allantoin, citronella oil and the like. The oil-in-water type menthol ointment has the effects of cooling and refreshing, diminishing inflammation, relieving itching and repelling mosquitoes, and has the advantages of being high in stability, low in irritation and small in oily feeling.

The invention discloses a low-shrinkage polypropylene material suitable for 3D printing. The preparation method comprises the following steps: mixing polypropylene, a catalyst, an initiator, a silanecoupling agent, a beta nucleating agent, talcum powder and calcium carbonate according to a certain mass ratio; adopting a double-screw extruder, feeding a stabilizer and glass fibers through side feeding holes at the same time, extruding to obtain a polypropylene modified material, and finally preparing filamentous printing consumable through 3D printing consumable equipment. The shrinkage performance of the material is effectively reduced, the melt strength of the material is improved, and the size of the 3D printing consumable is stabilized; the raw materials are easy to obtain, the preparation process is easy to operate and low in cost, the effect of the prepared 3D printing consumable is good, the application range of the polypropylene material is greatly expanded, the polypropylene material can be widely and stably applied to the field of 3D printing, and the polypropylene material has very high practicability and wide applicability.

The invention belongs to the field of moulding manufacturing of rubber products, and discloses a rubber dynamic injection moulding device and method. The device comprises a rubber cold feeding screw extruder, a sliding ring, a vibration sleeve, an injection nozzle, an upper cushion plate, an upper form board, a lower form board, a lower cushion plate and an electro-hydraulic hydraulic vibration system which are connected in sequence. According to the device, a vibration field is stacked at the position of an injection mold. According to the method, on the basis of not changing the mold structure and the material formula, the vibration field is stacked in the main shear direction of rubber to change the fluidity of rubber materials. According to the dynamic injection moulding device and method, the rubber filling capacity can be enhanced, injection pressure can be reduced, energy consumption can be reduced, and product quality can be improved; and especially it is possible to moulding the large-size and high-quality rubber products.

The invention relates to ultraviolet thick film photoresist, which is mainly prepared from 10 to 35 parts of phenolic resin, 1 to 10 parts of nanometer silicon-containing copolymer film forming resin, 5 to 20 parts of diazo naphthoquinone light-sensitive compound, 30 to 85 parts of solvent and a small number of other additives such as n-butylamine and surfactants which serve as raw materials by blending the raw materials and filtering through 5 micrometers, 1 micrometer and 0.2 micrometer filters. The nanometer silicon-containing alkaline soluble copolymer film forming resin is added into the film forming resin to increase the adhesivity, flexibility, side-wall verticality and mechanical properties of a film-forming agent and fulfill the aims of preventing adhesive films from cracking and patterns from deforming and even dropping in a salient point process, three-dimensional (3D) combined encapsulation and the manufacturing of micro-electromechanical systems (MEMS).