72 results about "Thickened fluids" patented technology

This invention relates to a stable composition and method of making a thickened fluid composition comprising chlorine dioxide. The stable composition includes a mixture containing a chlorite, an acid source, and a thickener component. At least one of the chlorite, the acid source and the thickener component is in particulate form. In an embodiment, the mixture may be a unitary solid body wherein chlorine dioxide is generated upon interaction with an aqueous medium, such as water. A free halogen source may also be added to the mixture in some cases.

A hair treatment composition which has a thickened fluid form comprising:(i) a first (shear gel) phase comprising at least one naturally derived polymer which is capable of forming a reversible gel, which polymer is present in the composition as a shear gel (i.e., a multiplicity of separate gel particles which have been formed by subjecting the polymer to shear while gel formation takes place), and(ii) a second (suspended) phase suspended therein.

The invention relates to shear thickening fluid based on a molecular colloid, as well as a preparation method and an application of the shear thickening fluid. The shear thickening fluid consists of an organic solvent and a molecular colloid system formed by inorganic nano grains, boric acid, hydroxyl silicone oil and a plasticizing agent, and is used for dipping high-property fiber fabric and preparing a protective material to improve a puncture-proof property of the material; the preparation technology is simple; the preparation period is short; the controllability of an operation is high; the stability of the property of a product is improved; the energy consumption is reduced; and moreover, large-scale production is facilitated.

A composition which has a thickened fluid form comprises: (i) a first (shear gel) phase comprising at least one polymer which is capable of forming a gel, which polymer is present in the composition as a shear gel (i.e., a multiplicity of separate gel particles which have been formed by subjecting the polymer to shear while gel formation takes place); and (ii) a second (encapsulated) phase which is in the form of particles or droplets which comprise a hair benefit agent and are entrapped by the gel matrix of at least a proportion of the gel particles. The composition may allow enhanced delivery of the encapsulated phase.

A method and system is provided which utilizes shear thickening fluids to enhance athletic performance. A shear thickening fluid composite is used on a golf club face to reduce the amount of side spin imparted onto a golf ball thus reducing the amount of slice or hook on the golf ball's flight path. Upon impact between the shear thickening fluid composite and the golf ball, the shear thickening fluid moves laterally away from the direction of the side spin imparted on the ball, thus reducing the amount of side spin imparted onto the golf ball. After this lateral motion, the shear thickening fluid hardens and transfers the remaining energy from the club face to the golf ball. A similar process occurs when the shear thickening fluid composite composes the outside of a golf ball. A shear thickening fluid composite is also used on an athletic shoe so as to transfer more force into a kicked ball thus having the ball travel at higher velocities. When the shoe strikes a ball, the shear thickening fluid within the shoe becomes rigid. This rigidness allows more energy to be transferred to the ball resulting in a ball traveling at a higher velocity. Additionally, a shear thickening fluid composite is incorporated into the sole of the athletic shoe to limit overpronation or underpronation during running. Also, a particulate-based shear thickening fluid incorporated into athletic shin guards improves protection and athletic performance by reducing weight and improving breathability.

The invention belongs to the technical field of nano-scale microsphere applications, and in particular relates to a preparation method of a shearing thickened fluid based on SiO2 nano-scale microspheres, and an application of the shearing thickened fluid prepared with the preparation method in a rheid protection composite material. According to the preparation method of a shearing thickened fluid based on SiO2 nano-scale microspheres in the invention, SiO2 nano-scale microsphere agglomeration can be effectively prevented, and particles are evenly dispersed. The preparation method has the advantages of simple technology, short preparation period, strong operation controllability, stable product performance, low energy consumption, few three wastes, low cost and the like, is easy for volume production and is especially suitable for industrial production. When the shearing thickened fluid prepared with the method provided by the invention is applied to the preparation of the rheid protection composite material, the obtained composite material has the advantages of high protective capability and light weight and is soft and tough which can satisfy the requirements of comprehensive, comfortable and light individual protective materials.

The invention provides a sandwich energy-absorbing device which comprises an upper panel, a lower panel, lateral plates and a core plate layer, wherein the core plate layer is fed in a closed space formed by enclosing the upper panel, the lower panel and the lateral plates, and the core plate layer comprises core materials and a shear thickening fluid material fed between the core materials and/or fed between the core materials and the closed space. When an energy-absorbing device suffers from an action an external impact, structures of the upper panel, the lower panel, the lateral plates and the core materials rapidly deform, so that a quick shear action is applied to the shear thickening fluid material fed in a core plate, the viscosity of the shear thickening fluid material with a relatively high shear strain rate is rapidly improved, and thus impact energy is rapidly dissipated, and relatively high specific strength, specific stiffness and vibration resistance and energy absorption capabilities are achieved.

The invention discloses a medical medicinal material grinding device with noise reduction function, which comprises a base, a piston cylinder, a piston ball, a shear thickening liquid, a grinding box, a driving motor, a runner, a feeding device, a grinding motor, a grinding wheel and Material receiving device, the inside of the piston cylinder is filled with shear thickening liquid; several groups of elastic steel plates are fixedly installed on the left and right sides of the support seat. The upper end of the elastic steel plate is rotated by a bearing to install a pulley, and the pulley is slidably installed inside the slide rail; A feeding device is connected to the lower side of the feeding port. According to the change of the descending speed of the piston ball, the shear thickening fluid can produce different resistances to improve the shock absorption effect of the device when it is working. The two sides move to press the elastic steel plate downward to play the role of shock absorption and buffering. Through the joint action of the above two kinds of shock absorption and buffering, the noise generated during the grinding process can be effectively reduced.

The invention relates to a high-precision speed locker for anti-seismic use of multi-span bridges. Including the cylinder part, the piston part and the working material; the piston part and the cylinder part are assembled to form a whole, and the working material is located in the cylinder; the working material is a shear thickening liquid or a shear thickening gel; the cylinder body The end cover is a cylindrical sealing cover, and the bottom of the sealing cover is provided with a boss matching the inner diameter of the cylinder; the outer side of the sealing cover is provided with a dust cover; the piston rod and the connecting rod are threaded ; A liquid injection hole is opened on the side wall of the cylinder body, and a plunger is arranged in the liquid injection hole. The shear thickening liquid and shear thickening gel used in the present invention are very soft at ordinary times and have easy flowability under normal conditions. Once the critical shear rate is reached, the viscosity increases rapidly and finally becomes a hard solid. Return to the soft state; make the speed locker have the characteristics of precision, high sensitivity, and good reversibility.

An apparatus and method for delivering a thickened fluid mixture, including a CO₂ recapture system. The apparatus including a proppant storage vessel and a fracturing fluid storage vessel providing a continous supply of a proppant material and a fracturing fluid to a mixing apparatus. The mixing apparatus configured to output and deliver a thickened fluid mixture of the proppant, the fracturing fluid and a thickener agent at or above the fracturing fluid blending pressure to a high pressure pump assembly. The high pressure pump assembly configured to deliver a high pressure thickened fluid mixture to one or more downstream components at an injection pressure. The apparatus including a CO₂ recapture system configured to recapture an exhaust stream from the one or more downstream components and/or other CO₂ output sources, and provide a purified and liquefied CO₂ fluid stream to the fracturing fluid storage vessel. The apparatus configured for continual operation.

A shear-thickening fluid is used in conjunction with fabrics utilized in an expandable spacecraft. The combination of the fluid and the fabric allows the fabric to resist penetration by hypervelocity particles in space.

The invention relates to a preparation method for a high-toughness material of a polypropylene/shear thickening fluid microcapsule. The method comprises the following steps: firstly, dispersing nano silicon dioxide in polypropylene glycol under a high-speed mixing effect of a high-speed shearing and emulsifying machine to obtain a shear thickening fluid; secondly, uniformly mixing the prepared shear thickening fluid with water according to a certain ratio to obtain a uniform solution; thirdly, adding an emulsifier and an organic solvent into the uniform solution and mixing through a mixer to obtain a uniform water-in-oil emulsion; fourthly, transferring the water-in-oil emulsion into a three-mouth flask and adding isocyanate for reaction to obtain a shear thickening fluid microcapsule; fifthly, carrying out melt blending on polypropylene and the shear thickening fluid microcapsule in one or a combination of more of an open mixer, an internal mixer and an extruder to obtain the high-toughness material of the polypropylene/shear thickening fluid microcapsule. Compared with a general toughening polypropylene material, the rigidity of polypropylene cannot be reduced while the toughness of polypropylene is enhanced, the heat resistance and the processing flowability of polypropylene are improved, and the shear thickening fluid microcapsule is changed into solid powder which is more convenient to form in comparison with liquid.

The invention discloses a shear thickening fluid microcapsule, a reinforced high molecular material and a preparation method and an application of the shear thickening fluid microcapsule and the reinforced high molecular material. The preparation method of the shear thickening fluid microcapsule comprises the following steps: (1) mixing and stirring 20 parts of a shear thickening fluid, 75-79 parts of an organic solvent A and 1-5 parts of an emulsifier to obtain an emulsion, wherein the shear thickening fluid comprises a dispersion phase medium and dispersion phase particles in a weight ratio of (19 to1)-(4 to 1); and the emulsifier comprises Span 80 and Tween 80; and (2) mixing the emulsion with an organic solvent B containing isocyanate, wherein the weight ratio of the emulsion, isocyanate and the organic solvent B is (67-70) to (5-8) to 25; and reacting, filtering, washing and drying to obtain the shear thickening fluid microcapsule. The shear thickening fluid microcapsule can reinforce the high molecular material and improve the impact performance of the high molecular material, and meanwhile, the viscosity of the melt is not improved and the processing flowability of the high molecular weight can be improved.

A vibration damper for a vehicle seat back is disclosed. The vibration damper includes an enclosure provided inside the upper end of a vehicle seat back. The enclosure includes a plurality of projections, preferably in the form of spaced apart, vertically extending pins, extending from one or more interior walls of the enclosure. A non-newtonian stress thickening fluid is provided within the enclosure. When the seat back is at rest the stress thickening fluid is free flowing within the enclosure. When the seat back is moved the stress thickening fluid is acted upon by the walls of the enclosure, the internally mounted pins, or both. As the walls and pins push on the fluid it comes under shear stress which causes the fluid to harden. As the pin passes through the hardened fluid they absorb energy and dampen the motion.

The invention provides a method for preparing micrometer/nanometer calcium carbonate in situ and a shear thickening fluid of the micrometer/nanometer calcium carbonate. The shear thickening fluid comprises a dispersion medium and a dispersion phase, wherein the dispersion medium is formed by mixing one or more of glycol, polyethylene glycol, propylene glycol and hydroxyl silicone oil; the dispersion phase comprises the micrometer/nanometer calcium carbonate generated from calcium acetate in the dispersion medium in situ. The shear thickening fluid provided by the invention is conveniently and fast prepared by synthesizing the dispersion phase in situ in the dispersion medium. Compared with the prior art, the shear thickening fluid provided by the invention has better dispersity, stability and shear thickening property. The preparation process of the shear thickening fluid of the micrometer/nanometer calcium carbonate is simple, convenient to operate and easily realizes the industrial production.

A liquid droplet jetting apparatus is capable of carrying out selectively a first purge mode and a second purge mode. In the first purge mode, a first air discharge purge of discharging air in an ink storage chamber is carried out while maintaining a meniscus of the ink. In the second purge mode, a second air discharge purge of discharging air inside the ink storage chamber is carried out while destroying the meniscus of the ink. Accordingly, there is provided a liquid droplet jetting apparatus in which it is possible to discharge a gas inside a liquid supply channel from an upstream side of the nozzle, and also, when the degree of thickening of the liquid inside the nozzle is extreme, it is possible to discharge the thickened liquid assuredly from the nozzle.

A process is disclosed that can be used for manufacturing a succulent product comprising combining a thickening or wheying preventing agent with a fluid food to produce a thickened fluid food; combining, with optional mixing, the thickened fluid food with a metal salt to produce a salt-containing fluid food; pouring the salt-containing fluid food above 20° C. into a porous container capable of releasing the salt-containing fluid food to produce one or more droplets; and combining the droplet with a food grade polymer solution or dispersion to produce a droplet having coated thereon the polymer made it water resistant by salt solution.

The invention relates to a self-adaptive variable-damping shear thickening fluid vibration absorber. The vibration absorber comprises a piston component, a cylinder block and a sealing cover component; a closed cavity is formed by an upper inner cover, a lower inner cover, the cylinder block and a piston rod together and contains a shear thickening fluid; Y-shaped sealing rings are arranged between the piston rod and the upper inner cover and between the piston rod and the lower inner cover; and O-shaped sealing rings are arranged between the cylinder block and the upper inner cover and between the cylinder block and the lower inner cover. The piston rod is connected with a controlled structure and drives a piston to move inside the cylinder block along with vibration of the controlled structure, the shear thickening fluid outputs the variable damping force with the change of the loading frequency and amplitude, and thus the self-adaptive damping vibration attenuation effect is achieved; and meanwhile, a small overflowing hole is formed in the upper inner cover, so that the jamming phenomenon is prevented. Thus, the self-adaptive variable-damping shear thickening fluid vibration absorber has the advantages that the vibration absorber is passive, self-adaptive and simple in structure and is very applicable to the mechanical vibration control simplification requirement.

The invention relates to a shear thickening fluid based on ionic liquid and a preparation method thereof. The thickening fluid contains polymer particles and imidazole ionic liquid. The preparation method is simple and easy to operate, easy to operate and free of pollution. The shear thickening liquid prepared by the method has good shear thickening property, can act on fabrics, and improves the impact resistance and the tensile property of the fabrics.

The invention discloses a method for modifying a protection material through shear thickening fluid impregnation. The method comprises the steps of evenly mixing polyethylene glycol with ethyl alcohol, then adding SiO2 powder to obtain suspension liquid, centrifuging the suspension liquid, washing sediment with ethyl alcohol, conducting drying to obtain powder, making the dried powder into suspension liquid with volume concentration of 6-10% with polyethylene glycol as a dispersion medium, impregnating Kevlar cloth in the suspension liquid made in step 3 and conducting ultrasonic dispersion at the same time, and then conducting drying to obtain the modified protection material.

The invention discloses a preparation method of a novel shearing and thickening fluid. The preparation method of the novel shearing and thickening fluid comprises the following steps: firstly, preparing a mixed system of tetrapod-shaped ZnO crystal whisker and polyethylene glycol, guaranteeing uniform dispersion of mediums by using manners of ultrasonically processing and standing, then adding SiO2 micro nanospheres into the system, and finally carrying out mechanical agitation, ball milling dispersion and the like to obtain the novel shearing and thickening fluid. By virtue of the method, the application of the tetrapod-shaped ZnO crystal whisker is expanded; meanwhile, uniform dispersion of two mediums can be effectively achieved; compared with a thickening system by taking separate SiO2 as a dispersion medium, the novel shearing and thickening fluid has the advantages that the shearing and thickening effect can be obviously improved by more than 3 times on the promise of same SiO2 mass fraction; the preparation method of the novel shearing and thickening fluid has the advantages of simple process, low cost, stable product property and high utilization rate of raw materials.