53 results about "Surface elasticity" patented technology

Methods and devices to determine rate of particle production and the size range for the particles produced for an individual are described herein. The device (10) contains a mouthpiece (12), a filter (14), a low resistance one-way valve (16), a particle counter (20) and a computer (30). Optionally, the device also contains a gas flow meter (22). The data obtained using the device can be used to determine if a formulation for reducing particle exhalation should be administered to an individual. This device is particularly useful prior to and/or following entry in a cleanroom to ensure that the cleanroom standards are maintained. The device can also be used to identify animals and humans who have an enhanced propensity to exhale aerosols (referred to herein as “over producers”, “super-producers”, or “superspreaders”). Formulations to reduce particle production are also described herein. The formulation is administered in an amount sufficient to alter biophysical properties in the mucosal linings of the body. When applied to mucosal lining fluids, the formulation alters the physical properties such as the gel characteristics at the air/liquid interface, surface elasticity, surface viscosity, surface tension and bulk viscoelasticity of the mucosal lining. The formulation is administered in an effective amount to minimize ambient contamination due to particle formation during breathing, coughing, sneezing, or talking, which is particularly important in cleanroom applications. In one embodiment, the formulation for administration is a non-surfactant solution. In one embodiment, the formulations are conductive formulations containing conductive agents, such as salts, ionic surfactants, or other substances that are in an ionized state or easily ionized in an aqueous or organic solvent environment. Preferably the formulation is administered in the form of an aerosol.

An implantable device is described for detecting an expansion which is an elastic deformation of an intracorporeal vessel wall. The device comprises a support structure which contains dielectric polymer, has surface elasticity and can be applied directly or indirectly to the vessel wall, which provides at least one capacitive electrode arrangement, of which the assignable electrical capacitance can be influenced by an elastic deformation of the support structure. The electrode arrangement includes at least two electrodes each consisting of an electrically conductive polymer. The electrodes each define at least one side an intermediate space that influences the electrical capacitance of the electrode arrangement. The space is filled with the dielectric polymer of the support structure.

Formulations have been developed for pulmonary delivery to treat or reduce the infectivity of diseases such as viral infections, especially tuberculosis, SARS, influenza and respiratory synticial virus in humans and hoof and mouth disease in animals. Formulations for pulmonary administration include a material that significantly alters physical properties such as surface tension and surface elasticity of lung mucus lining fluid, which may be a surfactant and, optionally, a carrier. The formulation may be administered as a powder where the particles consist basically of the material altering surface tension. The carrier may be a solution, such as an alcohol, although an aqueous solution may be utilized, or a material mixed with the material altering surface tension to form particles. These may include proteins such as albumin or polysaccharides such as dextran, which also has surface active properties, or polymers such as polyethylene oxide (PEO) or biodegradable synthetic polymers which can be used to encapsulate or deliver the materials to be delivered. Drugs, especially antivirals or antibiotics, may optionally be included with the formulation. These may be administered with or incorporated into the formulation.

The invention provides a fast and accurate characterization method for a living cell atomic force microscope. The method comprises the steps that the atomic force microscope is used to acquire the substantially stable applied force range of the cell surface elasticity value and the corresponding Young's modulus value; the atomic force microscope is used to acquire the back-and-forth scanning height image of a living cell under a set imaging force; force analysis is carried out on the interaction between a probe and the cell, and the interaction between the probe and the cell is decomposed into a vertical imaging force and a horizontal lateral force; and according to the imaging force magnitude, the cell surface topography under the force and the cell surface elasticity coefficient, the cell surface morphology of the cell without applied force is calculated. The fast and accurate characterization method for the living cell atomic force microscope has the advantages of high precision, high time resolution and the like.

A method for on-line detecting performance of filter cloth includes detecting relative variation of air flow rate and liquid flow rate passing through the filter cloth separately at the same time under certain degree of vacuum and filtering area to realize on-line detection for performance index of liquid content, liquid filtering ability, air permeability, total elasticity, surface elasticity and flatness of the filter cloth.

The invention discloses a delamination chromatography method for characterization and analysis of surface and near surface property of function gradient material, which establishes surface and near surface analysis chromatography of the function gradient material according to transmission property of sound surface wave with different frequency on the function gradient material by utilizing penetrability of sound surface wave. The delamination chromatography method includes steps: 1. modulating pulse laser by modulating space phase technique and generating sound surface wave with different wave length on detected material by calculation hologram technique; 2. measuring sound surface wave signal generated by excited micro-region and obtaining corresponding sound dispersion characteristics by common optical detection instrument; 3. training neuron network according to transmission model of sound surface wave in multi-layer material and realizing material property characterization along micro-region depth direction by the trained neuron network; 4. realizing delamination chromatography of surface and sub-surface elasticity property of function material by scanning of exciting source and detecting light point by point.

The invention discloses high-temperature-resistant oxidation-resistance ceramic glaze and a preparation method thereof and relates to the technical field of manufacture of ceramic glaze. The high-temperature-resistant oxidation-resistance ceramic glaze comprises nano alumina, nano silica, nano boron nitride powder, nano boron carbide powder, zinc oxide, kaolin, calcined talc, sodium oxide, a surfactant, glass fiber, nano titanium dioxide, zinc nitrate, and yttrium nitrate. The preparation method comprises the steps of (1) preparing an antibacterial agent; (2) preparing a high-temperature-resistant oxidation-resistant base; (3) preparing mixed glaze slurry; (4) preparing final glaze. The high-temperature-resistant oxidation-resistant base enables daily ceramics to be less prone to oxidation and maintains the glossy surface of ceramics; by changing the ratio of the original glaze and adding the calcined talc and zinc oxide, expansion coefficient of the glaze slurry can be decreased, the surface elasticity of the glaze can be improved, the mobility of the glaze slurry can be improved, and chances for the glaze surface to generate the defects of pinholes and crinkle are slimmed.

The invention discloses a preparation method for a high-transparency bionic blood vessel model for a hydrodynamics observation experiment, and belongs to the technical field of medical models. The preparation method comprises the following steps that a bionic blood vessel three-dimensional computer model is created by using a medical imaging system software; a male die of the bionic blood vessel model is manufactured by using an FDM 3D printing technology; a mixed liquor of PDMS and curing agent is proportioned; layered casting is carried out on the male die of the blood vessel model by usinga PDMS solution; after the PDMS is cured, a reserved inlet and outlet of the model is cut open to dissolve the male die of the blood vessel model; a completed PDMS mold is post-processed, thereby improving the surface precision, that is, the high-transparency bionic blood vessel model can be obtained. The preparation method for the high-transparency bionic blood vessel model for the hydrodynamicsobservation experiment has the advantages that the bionic blood vessel model has high transparency, high surface precision, high bionic performance and good wall surface elasticity, the preparation method is simple, forming is easy, and the development of the hydrodynamics observation experiment and medical teaching demonstration is facilitated.

The present invention discloses a wear-resistant flame-retardant conveying belt, wherein the raw materials comprise, by weight, 22-25 parts of ethylene propylene diene monomer, 15-18 parts of chloroprene rubber, 10-15 parts of nitrile butadiene rubber, 8-12 parts of chlorinated polyethylene, 4-6 parts of carbon black, 7-10 parts of sulfur, 3-5 parts of a phosphorus-containing flame retardant agent, 0.6-0.8 part of dibenzothiazole disulfide, 1.2-1.5 parts of a composite stabilizer, 0.8-1 part of n-isopropyl-n'-phenyl p-phenylenediamine, 2-3 parts of an anti-aging agent, 0.5-0.7 part of a dispersant, 6-9 parts of an adhesive, 2-4 parts of a plasticizer, 6-8 parts of asbestos fiber, 8-10 parts of dioctyl phthalate, 16-18 parts of a reinforcing filler, 3-5 parts of a sulfamide accelerator, and0.5-0.8 part of stearic acid. According to the present invention, the wear-resistant flame retardant conveying belt has advantages of high conveying efficiency and good surface elasticity; the tensile strength of the prepared stretching-resistant and wear-resistant flame-retardant conveying belt covering glue is increased by 13.6% and the wear resistance is improved by 39% compared to the existing products; and the wear-resistant flame retardant conveying belt has advantages of good fire resistance, strength improving, high elongation, and long service life.

The invention relates to a calculation method for elastoplastic deformation of a line contact rolling bearing, and belongs to the technical field of rolling bearings. The method uses the trial solution of control error to solve the normal load of the rollers of the line contact rolling bearing. The surface normal contact stress is calculated by the conjugate gradient method and FFT. The surface elastic deformation and subsurface stress are calculated by the influence coefficient method and FFT. The plastic deformation zone is judged according to the von Mises yield criterion. The plastic strain increment is solved by Newton-Raphson algorithm. After the plastic strain converges, the residual deformation of the surface is calculated. The sum of the elastic deformation and the residual deformation constitutes the elastoplastic deformation of the loaded roller of the line contact rolling bearing. The method can accurately and quickly obtain the elastic deformation of the roller in the calculation area, considering the influence of the machining precision, which provides theoretical guidance for the use of line contact rolling bearings in engineering practice.

The invention discloses a compound type automobile interior trim and a preparation method thereof. The compound type automobile interior trim provided by the invention consists of three layers of materials, wherein a plastic suction forming layer is arranged on the surface, a spraying type semi-rigid polyurethane foam layer is arranged at the middle, and a polyurethane reaction injection forming material layer is arranged at the bottom. In the plastic suction forming step on the surface, the moulds with different shapes can be used according to the requirements of different products, the materials with different hardness are selected, and the surface of the automobile interior trim product with pattern can be formed according to the mould design. The polyurethane spraying foam composition used in the polyurethane foam spraying forming process has two components, and the spraying is performed on a two-component spraying machine. After the second step is finished, the third step of performing the enhanced polyurethane reaction injection forming technology can be immediately performed without the steps of demoulding, post-curing and the like. According to the invention, the product does not protrude or deform easily, and has surface elasticity, relatively good handfeael and high product grade.

The invention discloses a waterproof finishing agent and a preparation method and application method thereof. the waterproof finishing agent is prepared from, by weight, 45-55 parts of an acrylate copolymer, 2.5-3.5 parts of an acrylamide/ ammonium acrylate copolymer, 1.8-2.2 parts of formaldehyde and 45-55 parts of water. The waterproof finishing agent can make the surface elasticity of a waterproof curtain for a bathroom good and soft, and has the advantages of being good in waterproof performance, low in breathability and moisture permeability, and excellent in antibacterial performance.

Methods and devices to determine rate of particle production and the size range for the particles produced for an individual are described herein. The device ( 10 ) contains a mouthpiece ( 12 ), a filter ( 14 ), a low resistance one-way valve ( 16 ), a particle counter ( 20 ) and a computer ( 30 ). Optionally, the device also contains a gas flow meter ( 22 ). The data obtained using the device can be used to determine if a formulation for reducing particle exhalation should be administered to an individual. This device is particularly useful prior to and/or following entry in a cleanroom to ensure that the cleanroom standards are maintained. The device can also be used to identify animals and humans who have an enhanced propensity to exhale aerosols (referred to herein as ''over producers'', ''super-producers'', or ''superspreaders''). Formulations to reduce particle production are also described herein. The formulation is administered in an amount sufficient to alter biophysical properties in the mucosal linings of the body. When applied to mucosal lining fluids, the formulation alters the physical properties such as the gel characteristics at the air/liquid interface, surface elasticity, surface viscosity, surface tension and bulk viscoelasticity of the mucosal lining. The formulation is administered in an effective amount to minimize ambient contamination due to particle formation during breathing, coughing, sneezing, or talking, which is particularly important in cleanroom applications. In one embodiment, the formulation for administration is a non-surfactant solution. In one embodiment, the formulations are conductive formulations containing conductive agents, such as salts, ionic surfactants, or other substances that are in an ionized state or easily ionized in an aqueous or organic solvent environment. Preferably the formulation is administered in the form of an aerosol.

A polyurethane fibre contained elastic knitted fabric with pile surfaces is made up of the (20-40)-count combed cotton yarn and the 3.3tex (30-70)-D elastic polyurethane fibres (3-15%) through knitting, dyeing, finishing and brushing pile on both surfaces. Its pile brushing technology features that said fabric is driven by several drive rollers and supporting rollers to pass through the surface of brushing rollers for generating pile on its both surfaces. Its advantages are comfortable handle, good surface elasticity and high thermal insulating effect.

The invention discloses a positive pressure detecting method of filter cloth property, which comprises the following parts: probe, pressure sensor, flow sensor, pressure adjustment valve, stabilized tank and controller to form testing system, wherein the testing system is positive pressure detecting system, which contains filter cloth and probe sealing device and positive pressure air source; the filter cloth air bears 0.01-1.5 Mpa pressure; at least two property indexes of filter cloth permeating degree, liquid content, smooth property, total elasticity and surface elasticity are detected through relative various air flow and pressure separately. The invention packages the detecting system structure, which is convenient to be on-line and moving detection of filter cloth property.

The invention provides an efficient polyurethane asphalt anticorrosive coating which is prepared from polyurethane, alkyd resin, modified asphalt, anticorrosive pigment and gallotannic acid in parts by weight. According to the invention, the idea of adding polyolefins modified asphalt into a polyurethane coating system to improve the surface elasticity of a coating film of the coating, high-and-low-temperature resistant transforming ability and the like is innovatively proposed, the preservation time of a product is as long as to be up to or even more than 5 years, meanwhile, composited zinc sulfate with a good anticorrosive property is taken as the anticorrosive pigment, the composited zinc sulfate takes part in transforming the slight corrosion, so that the tolerance of the coating on a base material and the adhesion force of the paint film are increased, furthermore, the gallotannic acid capable of reacting with a base material steel is added, so that the labor intensity is reduced, the rust adhered to the surface is removed, and the adhesion force of the paint film is increased.

The invention discloses elastic fire-retardant paint and a preparation method thereof. The paint is prepared by sequentially adding, by weight, 80-120 parts of epoxy resin, 50-100 parts of a curing agent, 1-5 parts of white carbon black, 10-30 parts of wet-process sericite, 20-50 parts of titanium dioxide, 1-10 parts of an adhesion promoter, 10-20 parts of a flexibilizer-liquid butadiene-acrylonitrile rubber, 1-5 parts of an anti-sedimentation agent-oxidized polyethlene wax slurry, 5-15 parts of elastic microsphere filler and 50-100 parts of a solvent and mixing and stirring the materials. The fire-retardant paint is good in surface elasticity and is obviously changed compared with a traditional epoxy coating; the surface elasticity can be regulated according to the actual needs, and meanwhile the thickness of coatings can be controlled to range from 30 micrometers to 50 micrometers; the adhesion ASTM level of the coatings formed on a metal substrate and a composite substrate reaches 5B, and the coatings cannot be cracked or fall off under the high temperature and low temperature (ranging from minus 20 DEG C to 120 DEG C) working conditions and cannot fall off under the strong acid and strong base conditions.

The invention relates to a table tennis and table tennis table surface elasticity measurement device and method. The measurement device comprises a housing, a base, a release device, a sound-sensitivesensor, a microcomputer and an acousto-optic display device. The housing is a hollow cavity. The base is arranged under the housing. The top portion of the housing is provided with a circular hole. The release device is arranged under the circular hole. The housing is provided with a wind release hole, which can eliminate wind resistance caused by the sealed cavity in the ball falling process toensure test accuracy. The housing is internally provided with the sound-sensitive sensor, the microcomputer and the acousto-optic display device. The microcomputer is connected with the sound-sensitive sensor and the acousto-optic display device. A battery provides power for all electric devices. The measurement device and method can realize scientific and quantitative test of the elasticity of atable tennis table and a table tennis to enable the table tennis equipment to fully comply with international standards; and besides, the measurement device is small in size and convenient to carry and use.

The developing member has an electroconductive substrate, and an elastic layer having a mono-layer structure on the substrate as a surface layer, wherein the elastic layer has a thickness of T μm and a volume resistivity of 1.0×10⁵ Ω·cm to 1.0×10¹² Ω·cm, and includes a first resin as a main binder; and the elastic layer further includes a second resin having a structural unit represented by Formula (1), in a region extending toward a first surface from a second surface by a depth of t μm, where the first surface is defined as a surface of the elastic layer on a side facing the substrate, and the second surface is defined as a surface thereof opposite to the first surface, wherein in the region, a concentration of ether bonds is higher on the second surface side than on the first surface side (provided that T>t):

The invention belongs to the field of physical training apparatus, relates to a kind of table tennis bat whose surface can penetrate images and its manufacturing technique. The invention comprises a bat baseboard, a bat handgrip, a elasticity inlay at the bat baseboard. There are transparent colloidal particle inlay rubber, image thin layer or transparent rubber, image thin layer and colloidal particle inlay in the elasticity inlay. Producing transparent image rubber by extruding or high frequency or ejection forming method, and formed indirectly stick to the middle elasticity inlay or directly stick to the bat baseboard. The invention can make the inner color images be seen from the exterior, the bat surface design connotation abundant, the image stereo, and increase the attractive power of the bat itself but do not affect the surface elasticity of the table tennis bat.

The invention discloses application of the base coating and roller coating technology for the surface of a metal air cylinder gasket. The application comprises the following steps that (1) materials are collected; (2) a stainless steel material is punched; (3) sand blasting treatment is conducted on the surface of a workpiece, and then the workpiece is soaked with 5% hydrochloric acid and washed with clear water; (4) the cleaned workpiece is dried; (5) a stainless steel base coating agent is sprayed to the cleaned workpiece; (6) the workpiece in the step (5) is dried; (7) fluoro rubber is sprayed to the dried workpiece in the step (6); (10) the bonding surface of the embossed workpiece is cleaned with a 50% acetone solution; (11) the workpiece in the step (10) is subjected to roller coating through the stainless steel base coating agent; (12) the workpiece in the step (11) is dried; and (13) the dried workpiece is riveted. According to the application of the base coating and roller coating technology for the surface of the metal air cylinder gasket, the stainless steel base coating agent is adopted, the adhesive force between the fluoro rubber and stainless steel is improved, a fluoro rubber adhesive is subjected to roller coating, and the surface elasticity of the fluoro rubber is improved.

The invention relates to a preparation method of a concrete quick-setting agent, and belongs to the technical field of quick-setting agents. The concrete quick-setting agent is an alkali-free and chlorine-free liquid concrete quick-setting agent, and has less damage to a construction worker when used; the concrete quick-setting agent utilizes the elasticity of a polyurethane material and the rigidity of silica to improve the overall density of concrete and greatly improve the strength of the concrete when acting on the concrete, the concrete quick-setting agent reduces the damage to the construction worker during construction, is remarkable in coagulation promoting effect, small in later stage strength loss, good in durability, green and environmentally-friendly and the concrete quick-setting agent can be widely used in the technical field of concrete quick setting agent preparation. The polyurethane has the advantages of good resilience and high mechanical strength, and the silica hascertain rigidity, and he surface of nano silica particles is coated with a layer of the elastic polyurethane to obtain elastic nanoparticles with a certain surface elasticity and internal hardness; by mixing the elastic nanoparticles into the liquid quick-setting agent, the strength of the concrete is increased.

The invention discloses a composite coating agent for aloe gel carried deep submicron Ag and a method of using the composite coating agent for keeping aloe fresh and belongs to the field of fresh-keeping of fruits and vegetables. A synthetic method of the composite coating agent comprises the steps of selecting sodium dodecyl sulfonate and the like as a modifier of Ag, assisting by hydrochloric acid to regulate a pH value, carrying out reaction under the condition of heating and mixing to obtain modified deep submicron Ag, putting the deep submicron Ag, the aloe gel, glycerel monostearte and acetic acid in a magnetic heating mixer, and carrying out mixing and ultrasonic degassing to obtain the aloe gel/deep submicron Ag composite coating agent. With the adoption of the composite coating agent, a composite film can be prepared; after fresh aloe stems and leaves are treated by methods of selection by classifying, impurity removal by cleaning, finishing, slitting, rapid sterilization, coating, packaging and warehousing, the initial colors, the surface elasticity, the moisture and the nutritional ingredients of the fresh aloe stems and leaves can be effectively kept. The composite coating agent, the composite film and the method of using the composite coating agent for keeping the aloe fresh are easy to operate, are high in high performance cost ratio and have a wide prospect.