43results about How to "Viscosity effect" patented technology

A rare-earth-containing glass material has a composition, expressed in mole percentages on an oxide basis, comprising: SiO2 : 66-75 Al2O3 : 11-17 B2O3 : 0-4 MgO : 1-6.5 CaO : 2-7 SrO : 0-4 BaO : 0-4 Y2O3 : 0-4 La2O3 : 0-4 Y2O3+La2O3 : 0.1-4. The inclusion Of Y2O3 and / or La2O3 in the composition reduces the T2.3 of the glass thereby allowing higher annealing-point glasses to be produced. The glass is particularly useful for low-temperature polycrystalline silicon-based semiconductor devices.

The invention discloses a high-permeability concrete sealed waterproofing agent and a preparation method thereof. Most of permeable waterproofing agents on the market presently have the problems of too high surface tension, high viscosity, insufficient permeation depth, bad sealing effect for microcracks in concrete, and unobvious improvement for the waterproofing and anti-permeation performance of concrete. The waterproofing agent disclosed by the invention comprises 500-900 parts of lithium silicate solution, 5-50 parts of modifier, 1-20 parts of retarder, 0-50 parts of reinforcing agent, 5-50 parts of permeating agent and 0-200 parts of deionized water, wherein the lithium silicate solution is a colourless and transparent aqueous solution with a modulus of 4-5 and a solid content of 20-30%; and the permeating agent is one or more of polyether-modified organosilicone and fluorocarbon surfactant. According to the waterproofing agent disclosed by the invention, the lithium silicate solution is modified through the modifier, and the high-efficiency permeating agent and retarder are adopted, thus the surface tension of the waterproofing agent is greatly reduced, and the permeation depth is increased.

The invention discloses a fatigue test stand for a torsion damper. The fatigue test stand comprises an experiment platform, the torsion damper, a torsion vibration shaft and a permanent magnet synchronous motor having a controller. The experiment platform is equipped with a first base, a second base and a third base through bolts. The first base is equipped with a thermostatic chamber; the torsion damper is arranged in the thermostatic chamber; the torsion damper is connected with a damper connection disc; the damper connection disc is connected with one end of the torsion vibration shaft; the other end of the torsion vibration shaft is connected with the output shaft of the permanent magnet synchronous motor through a shaft coupler; the torsion vibration shaft passes through the second base and the third base; and an inertia disc group is detachably arranged on the torsion vibration shaft between the second base and the third base. The test stand not only can realize high-frequency torsion vibration similar to that in engine test, but also can realize adjustable inherent frequency of the device, thereby reducing the original very-long test period and achieving the quick detection effect. The invention also discloses a fatigue test method for carrying out reliability test on different torsion dampers by utilizing the test stand.

The present invention discloses a method, device and system for sending an instant prompt message, and belongs to the field of communication. The method includes: receiving a request of a first user for obtaining a video live broadcasting permission; according to a user identifier ID of the first user, obtaining a second user associated with the first user; according to the user ID of the first user and a first room ID of a video live broadcasting room where the first user is located, generating a first instant prompt message corresponding to the first user, the first instant message being used for prompting the second user that the first user is performing video live broadcasting in the first room; and sending the first instant prompt message corresponding to the first user to an instant communication client corresponding to the second user. The device includes: an obtaining module, a generation module and a sending module. The system includes: a video live broadcasting server and an instant communication sever. According to the method, device and system of the present invention, the second user is notified relative instantly, and the aim of effective notification is achieved, thereby avoiding influence on the viscosity of the user.

The invention relates to a blood viscosity acquiring method and system. The method comprises the following steps: using a microprocessor to instruct an electromagnetic driving device to drive a cassette mechanism to rotate, thereby driving a disc and a cone to rotate at an accelerated speed by the cassette mechanism; using the microprocessor to instruct the electromagnetic driving device to stop driving when determining that the rotation speed of the cone reaches a preset first switching rate, thereby driving the disc and the cone to rotate at a decelerated speed by the cassette mechanism; using the microprocessor to instruct a photoelectric sensor to acquire the rotation angular velocity and the angular acceleration of the cone in the process of rotating at the decelerated speed; and acquiring the viscosity of the sample according to the rotation angular velocity and the angular acceleration. By using the embodiment of the invention, the influence on the viscosity of the sample caused by a frictional force generated between the electromagnetic driving device and the disc is avoided, the accuracy of the viscosity of the sample is increased, and the measurement for the viscosities of Newtonian fluid and non-Newtonian fluid under the condition of a determined switching rate is realized.

The invention discloses a double-action plunger-type deicing liquid pump for airplane deicing liquid operation. Two plunger pump cylinders in the same structure are connected into an integral body by a crank connecting link through a piston, the plunger pump cylinders are divided into two regions, and each region is provided with a non-return valve; one power source is used for driving the two plunger pumps to work simultaneously; a liquid feed channel is connected with a liquid feed non-return valve on each plunger pump cylinder; a liquid discharge channel is connected with a liquid discharge non-return valve on each plunger pump cylinder, and the outlet of the liquid discharge channel is provided with an injection gun; and the plunger pump cylinders, liquid feed channels and liquid discharge channels are made of stainless steel. Compared with single-action pumps with the same flow rate, the double integrated pumps can raise the pressure of the injected fluid and increase the injection distance. Compared with centrifugal pumps, the frictional heat of the invention generated in the working process is very low so as not to influence the viscosity of the deicing liquid, and the invention can well maintain the characteristics of the deicing liquid. The invention is mainly used as a special pump for airplane deicing liquid for deicing and anti-icing operations.

The present invention discloses an anchor online prompting method and device, belonging to the field of the network technology. The method comprises: when online request of a first anchor is received, obtaining a user account having an association relation with the first anchor based on the first anchor identification, the online request carrying the first anchor identification; generating prompting information based on the first anchor identification and a first direct broadcasting room identification, the prompting information being configured to prompt that the first anchor is performing network broadcast in the first direct broadcasting room, the first direct broadcasting room being the direct broadcasting room where the first anchor is performing the network broadcast at present; and sending the prompting information to a user terminal registering the user account through the assigned virtual pet at present to allow the user terminal to prompt the online of the first anchor through the assigned virtual pet. The anchor online prompting method and device are good in timeliness and reaches the purpose of effective notification so as to avoid the influence on user viscosity.

The invention relates to heat conduction silicone grease as well as a processing method and application thereof. The heat conduction silicone grease is prepared from substances of simethicone, heat conduction filling materials, coupling agents, auxiliary agents, methylsilicone oil, gas phase silicone and the like. In the prior art, when the heat conduction silicone grease with high viscosity is used, a surface coating method is generally used, i.e., a thick layer of heat conduction silicone grease coats on the surface of an electronic device; then, a heat radiation fin is adhered onto the heatconduction silicone grease. By using the operation mode, the consumption of the heat conduction silicone grease is great; in addition, pores can be easily generated between the heat radiation fin andthe heat conduction silicone grease. When the heat conduction silicone grease provided by the scheme is used, the heat conduction silicone grease can be dripped into the electronic device; then, theheat radiation sheet can be adhered onto the heat conduction silicon grease by force; the viscosity of the heat conduction silicone grease is low, and the flowability is good, so that during the adhesion on the heat radiation fin by force, the heat conduction silicone grease completely fits the shape of the two opposite sides of the heat radiation fin and the electronic device; the heat radiationeffect reduction due to pore remaining between the heat radiation fin and the electronic device can be avoided.

The invention discloses a medicine-lipiodol solvent and a preparation method thereof. According to the invention, a lipiodol injection and medicine molecules are dissolved and fully mixed under rapidstirring by utilizing high pressure, and a small molecule medicine is dispersed in the lipiodol after pressure reduction to prepare the uniformly mixed medicine-lipiodol solvent. The prepared medicine-lipiodol solvent has controllable morphology, long-term stability, slow medicine release rate compared with a medicine-lipiodol mixed suspension and emulsion, and the medicine molecules do not significantly affect the physical and chemical properties such as the viscosity of lipiodol. The medicine-lipiodol solvent is first embolized by injection through the hepatic artery in the treatment of liver cancer, then, the medicine molecules in the medicine-lipiodol solvent can further exert a sustained-release therapeutic effect. The method provided by the invention is a good method for combined treatment of lipiodol embolism.

The invention belongs to the field of cosmetics, in particular to dense silicon dioxide coated pearl powder. The pearl powder is prepared from PEG-1000, pearl powder, a sodium silicate solution and a sulfuric acid solution by pulping, grinding, costing, washing with water, drying and pulverizing with air flows, wherein the pearl powder is nano pearl powder of which the grain size is smaller than 200 nm. The invention has the advantage of simple process, and the provided dense silicon dioxide coated pearl powder has the advantages of good coating effect, complete coating and no floccules among granules and can be widely applied to emulsions and cream in cosmetics and beneficial to promoting the combination development of the cosmetics and pearls so as to greatly widening the application range of the pearl powder in the cosmetics.

The invention provides a wind power blade main beam sheet pultrusion impregnation device, die, equipment and method. The pultrusion impregnation device comprises an impregnation die and a plurality ofglue injection devices, wherein the impregnation die comprises a closed first die cavity and a first heating device arranged outside the first die cavity, a feeding hole and a discharging hole are formed in the first mold cavity, glue injection holes penetrating into the first mold cavity are further formed in the first mold cavity, glue outlets of the glue injection devices are connected with the glue injection holes, and the glue injection devices are suitable for injecting glue liquid into the first mold cavity. According to the wind power blade main beam sheet pultrusion impregnation device, mold, equipment and method, the influence of environmental factors on the glue liquid performance can be avoided, the glue liquid is mixed and used immediately, the concentration uniformity is high, the fiber positioning trend is accurate and controllable, the length and temperature of each section in the die are further controlled, and the fiber material content is controlled, so that the impregnation effect and the curing effect are guaranteed, and the prepared product has better performance.

The invention belongs to the field of oilfield chemistry, and relates to a kind of biodiesel oil and a small amount of mineral oil as base oil, which is blended with suitable surfactants, anti-friction and anti-wear additives, anti-foaming agents and other additives, and has excellent anti-wear performance. Drilling fluid lubricant and preparation method thereof. The mass percentage of each component of the lubricant provided by the invention is: biodiesel (30-50%), mineral oil (10-20%), Span-80 sorbitan oleate (10-30%) , triethylamine dodecylbenzenesulfonate ABSN (10-30%), anti-friction and anti-wear additives (1-5%), defoamer (0.5-1%). The drilling fluid lubricant provided by the invention has excellent anti-friction performance, and the reduction rate of the lubrication coefficient reaches about 85.0%.

The invention relates to a low-sulfur diesel lubricating anti-wear agent, which is prepared by uniformly mixing at least one ester oily component, at least one amide oily component and at least one low-sulfur solvent component in a mechanical blending manner to make. The present invention starts from the reality of improving the wear resistance of low-sulfur diesel oil, and has the functions of increasing lubrication, improving oxidation stability, and high-efficiency cleaning. The quality of diesel products produced by the factory is high, and the addition process is simple, which can reduce production costs while improving product quality. The lubricating antiwear agent prepared by the invention can be applied to low-sulfur diesel oil, and can obviously improve the lubricating performance of the diesel oil.

The invention relates to a low-sulfur diesel lubrication anti-wear agent. The lubrication anti-wear agent is prepared by blending at least one kind of ester-type oily components, at least one kind of amide-type oily components and at least one kind of low-sulfur solvent components evenly and mechanically. The lubrication anti-wear agent has the effects of increasing lubrication, improving oxidation stability, carrying out effective cleaning and the like from the perspective of improving wear resistance of low-sulfur diesel. The lubrication anti-wear agent is free of poison and heavy metal, small in adding amount and convenient to use, quality of diesel products generated by oil refineries can be improved, the addition technology is simple, product quality is improved, and meanwhile production cost is reduced. The lubrication anti-wear agent can be applied to the low-sulfur diesel and can obviously improve the lubricating property of diesel.

The invention relates to a preparation method and application of a low-activity MDI-50 product; the preparation method comprises the steps: controlling the proportion of 2,4-diphenylmethane diisocyanate and 4,4-diphenylmethane diisocyanate isomers and the content of free chlorine in an online diphenylmethane diisocyanate mixture in a rectifying tower, and enriching the free chlorine through a crystallization process; and then adding a diphenyl methane diisocyanate mixture with low impurity content and high content of 2,4-diphenyl methane diisocyanate for blending to obtain the MDI-50 product with free chlorine content of 5-20 ppm. The MDI-50 product is applied to the field of laminating adhesives, thereby being beneficial to stable control of viscosity in the application process in the field of laminating adhesives.

The invention discloses a polymerizable lignin-based macromolecular photoinitiator, a preparation method and applications thereof, wherein the structure formula of the polymerizable lignin-based macromolecular photoinitiator is represented by the following formula I, wherein the group defined in the specification is a terminal-hydroxyl-free molecular skeleton of lignin, M1 is a terminal-hydroxyl-free and halogen-atom-free molecular skeleton after epoxy haloalkane is subjected to an epoxy ring-opening reaction, M2 is an acyl-chloride-free and double-bond-free molecular skeleton of a solubilizing compound, M3 is a hydroxyl-free molecular skeleton of a cracking type photoinitiator, n1 and n3 are natural numbers of greater than or equal to 1, n2 is an integer of greater than or equal to 0, andthe sum of n1, n2 and n3 is the number of the terminal hydroxyl groups of lignin. The invention also discloses a preparation method and applications of the photoinitiator. The photoinitiator disclosed by the invention has characteristics of good ester solubility, good polymerizability, high photo-initiation activity, good thermal stability, good storage performance, low viscosity, low mobility, low toxicity and no volatilization.

Powdered overbased amorphous alkaline earth salts are made which consist essentially of isolated solid agglomerated micelles of amorphous alkaline earth metal salts complexed with an amorphous alkaline earth metal carboxylate of a fatty acid. The process for making the powder involves precipitating and isolating the solid particles from liquid overbased alkaline earth metal compositions.

The invention provides a composite plugging material for well drilling and application thereof, belonging to the field of plugging technologies for oil and gas field exploration and development. The composite plugging material for well drilling comprises the following components in parts by weight: 1-2 parts of fibers, 50-70 parts of an inorganic silicon material, 15-35 parts of an elastic material and 13-14 parts of a tough material, wherein the elastic material is elastic graphite. According to the composite plugging material for well drilling, the inorganic silicon material and the tough material are used, so the composite plugging material for well drilling forms a plugging slug with certain strength under certain pressure, thereby realizing plugging; and when the elastic graphite is located in a crack, pressure generated by continuous opening-closing of the crack can be effectively resisted, so the plugging slug is not damaged, and re-leakage is avoided. In addition, the compositeplugging material for well drilling is suitable for water-based drilling fluids and oil-based drilling fluids, and is wide in application range.

The invention provides a xanthan gum gel electrolyte and a preparation method thereof. Sulfuric acid is added to anhydrous sodium sulfate to be stirred and dissolved to obtain a sulfuric acid solutionof anhydrous sodium sulfate; and next, xanthan gum is added to the solution to be stirred and mixed to obtain a xanthan gum gel electrolyte, wherein the added anhydrous sodium sulfate accounts for 0.02-0.05mass% of the total mass of sulfuric acid, and the added xanthan gum accounts for 0.7-1.2mass% of the total mass of sulfuric acid. The xanthan gum gel electrolyte disclosed in the invention hasan extra reagent, so that types of reagents are obviously reduced, influence to the environment is lowered, and production cost is highly lowered; on the basis, the gel electrolyte with high dispersity, almost no change of viscosity along with time and relatively high index performance is prepared, and the cycle life of the prepared gel electrolyte is obviously prolonged; and therefore, the gel electrolyte has relatively high application prospects.

The invention discloses a device and a method for testing cavitation characteristics of materials in a polymer solution. The device comprises a magnetostriction oscillator, a test tank filled with polymer solution test liquid and a test liquid circulating system. The testing method disclosed by the invention comprises the steps: standing the polymer solution to ensure that the polymer solution which meets a viscosity stabilizing period is poured into the test tank, and turning on the magnetostriction oscillator and the test liquid circulating system to enable the polymer solution to flow in the device in a circulating manner. According to the method, the stable characteristic of the polymer solution liquid in a process of testing the cavitation characteristics of the materials is ensured, and an influence of the polymer solutions with different concentrations at different temperatures on the cavitation characteristics of the materials can be obtained. According to the device and the method disclosed by the invention, the problem of the change of the characteristic of the polymer solution liquid in the process of testing the cavitation of the materials in the polymer solution is solved well, and in particular the problem of obvious reduction of the viscosity is solved well; moreover, a method for exploring the cavitation rules of different materials in the polymer solution is provided.

The invention discloses a lubrication oil supply protection device for a gear transmission mechanism, and relates to the field of lubrication protection devices. The lubrication oil supply protectiondevice for the gear transmission mechanism comprises an oil tank, an oil pump connected with the oil tank, and a pressure oil storage cavity arranged in an inner cavity of the oil tank. An outlet of the oil pump is connected with a lubricating oil injection port of the gear transmission mechanism through a main oil supply circuit and a first stop valve sequentially; a lubricating oil discharge hole of the gear transmission mechanism is connected with the oil tank through an oil return circuit; an oil outlet of a pressure oil storage cavity is connected with the lubricating oil injection port of the gear transmission mechanism through a second stop valve, a by-pass oil supply circuit and the first stop valve sequentially; the pressure oil storage cavity comprises a barrel-shaped cavity body, a piston arranged in the cavity body, a spring with two ends being fixed onto the bottom surface of the cavity body and the piston, and an end cover arranged on the end port of the cavity body; andan oil outlet is formed in the end cover. The lubrication oil supply protection device for the gear transmission mechanism provided by the invention solves the problem that when the oil pump stops running, the oil pump cannot provide lubricating oil to lubricate a gear set.

The invention relates to high-temperature-resistant waterproof emulsified asphalt. The high-temperature-resistant waterproof emulsified asphalt with a pH (potential of hydrogen) value of 3-8 is characterized by comprising, by weight, 2%-4% of emulsifiers, 40%-45% of matrix asphalt, 10%-20% of latex, 0.1%-1% of additives I, 0.1%-1% of additives II and the balance water. The high-temperature-resistant waterproof emulsified asphalt has the advantages that the high-temperature-resistant waterproof emulsified asphalt is excellent in performance, and the heat resistance, the toughness and the storage stability can be effectively improved.

The invention relates to preparation and application of a near-infrared fluorescent probe for detecting cell viscosity. The structural formula of the probe is shown in the specification. The invention provides a preparation method for synthesizing the fluorescent probe by taking diethylaminoxanthene and quinoline as raw materials. The fluorescent probe is a viscosity type fluorescent probe with good water solubility and near infrared emission; firstly, the fluorescent probe shows better sensitivity to solutions with different viscosities, and the linear range is 2.5 cP to 523cP; secondly, the fluorescent probe shows very high selectivity on viscosity, and is not influenced by various other ions, active oxygen, biological mercaptan and amino acid; moreover, the fluorescence intensity of the fluorescent probe remains unchanged after 2 hours in a high-viscosity solution, which shows that the fluorescent probe has excellent optical stability; in addition, the fluorescent probe can also be applied to detection of viscosity of living cells.

The invention discloses a preparation method of special talc powder for a coating pigment, and belongs to the technical field of pigment additives. The preparation method comprises the following steps: firstly heating, carrying out pressurization and stirring the talc powder, phospholipid and water, and then performing filtering, washing, drying and calcination to obtain pretreated talc powder; carrying out ball-milling and mixing the pretreated talc powder and an inorganic strong acid solution to obtain a ball abrasive, filtering the ball abrasive, and performing washing and drying to obtainball-mill modified talcum powder; and ultrasonically dispersing the ball-milled modified talc powder, polyvinylpyrrolidone and water to obtain dispersion liquid, dropwise adding tetraethyl orthosilicate to the dispersion liquid under stirring, after dropwise adding tetraethyl orthosilicate, continuously stirring, discharging, filtering, washing and drying to obtain coated modified talcum powder; calcining the obtained coated modified talc powder, cooling with a furnace, and discharging, thereby obtaining the special talcum powder for the coating pigment. The special talc powder for the coatingpigment prepared by the technical scheme of the invention has the characteristics of low viscosity and high wettability.

The invention relates to a graphite viscosity regulating device, and particularly relates to a graphite viscosity regulating device for printing. The invention aims to solve a technical problem by providing the graphite viscosity regulating device for the printing, wherein the device has a viscosity adjusting powder and can fully mix graphite and the viscosity adjusting powder. In order to solve the above problem, the invention provides such a graphite viscosity regulating device for the printing: the device comprises a stirring box and the like; and the upper part of the stirring box is connected with driving mechanisms, the interior of the stirring box is connected with stirring mechanisms, the middle of the bottom of the stirring box is connected with a material outlet pipe, and the material outlet pipe is provided with a valve. According to the invention, a placing box is arranged in the device, thus a proper amount of the viscosity adjusting powder can be conveniently added into the stirring box to adjust graphite viscosity; and a rubber clamping rod, a second slide rail and a second slide block are arranged in the device, thus a baffle can be fixed, and when the graphite and the viscosity adjusting powder are mixed and stirred, a condition that the baffle is loose and causes falling of excessive viscosity adjusting powder into the stirring box and further influence on graphite viscosity regulating is prevented.

A rare-earth-containing glass material having a composition, expressed in mole percentages on and oxide basis, comprising: SiO2: 66-75 Al2O3: 11-17 B2O3: 0-4 MgO: 1-6.5 CaO: 2-7 SrO: 0-4 BaO: 0-4 Y2O3: 0-4 La2O3: 0-4 Y2O3+La2O3: 0.1-4. The inclusion of Y2O3 and / or La2O3 in the composition reduces the T2.3 of the glass thereby allowing higher annealing-point glasses to be produced. The glass is particularly useful for low-temperature polycrystalline silicon-based semiconductor devices.

The invention provides a preparation method of bainite steel which is high in purity, better in hardness, more excellent in wear resistance and corrosion resistance and excellent in low-temperature impact toughness by improving the components and controlling the smelting process, the refining process and the continuous casting process. The method specifically comprises the steps of KR method molten iron pretreatment, top-bottom combined blown converter smelting, LF furnace refining, VD treatment, square billet continuous casting, rolling and heat treatment.

The invention discloses a preparation method and application of a profile control agent, and belongs to the field of profile control plugging. The method comprises the following steps: sequentially adding water and natural rice husks into a liquid preparation tank at a preset temperature, and uniformly mixing to obtain a first suspension; adding an oxidizing agent into the first suspension, stirring for a first preset time, and decomposing carbon-carbon double bonds, carbon-oxygen bonds and benzene rings in lignin contained in the natural rice husks to obtain a second suspension; adding a pH value regulator into the second suspension, and regulating the pH value of the second suspension as a reference value to obtain a third suspension; and adding polyacrylamide and a cross-linking agent into the third suspension, and uniformly mixing to obtain the profile control agent. The natural rice husks in the profile control agent basically do not contain lignin, that is, the lignin contained in the natural rice husks does not influence the viscosity of the profile control agent, so that the profile control and channeling sealing capabilities of the profile control agent can be improved. The profile control agent is mild in reaction condition, simple in preparation method, easy to operate and free of pollution.

The invention relates to a preparation method of hydrophilic acrylamide-based crosslinked polymer microspheres. The method includes the steps of: 1) adding methacryloyloxyethyl trimethyl ammonium chloride into distilled water, then adding 2, 2-azo(2-methylpropylamidine)dihydrochloride, stirring the substances evenly, then introducing nitrogen gas and performing water bath heating; 2) taking out the reactants, first performing washing with ethanol three times, then adding acetone for dilution, then conducting drying in an oven, and performing crushing; 3) adding ammonium sulfate into distilledwater, conducting stirring dissolving to obtain an ammonium sulfate solution; 4) adding acrylamide, DMC, acrylic acid, 2, 2-azo(2-methylpropylamidine)dihydrochloride, a co-crosslinking agent and a dispersant into the ammonium sulfate solution obtained in step 3) in order and performing dissolving; and 5) introducing nitrogen gas into the above solution and performing water bath heating, thus obtaining the hydrophilic acrylamide-based crosslinked polymer microspheres. The method provided by the invention has the characteristics of simple operation, environment-friendly process and wide application range, and solves the problem that micron-sized monodisperse polymer microspheres with hydrophilcity and a cross-linked structure at the same time cannot be obtained in the prior art.