208 results about "Contact angle" patented technology

The invention discloses a composite board ultrasonic defect detection method which comprises the following steps: S1, fixing a carbon fiber circumferential winding composite pressure container on a bracket, and establishing a coordinate system with the axis of the container as a z axis; s2, a 40 MHz dry coupling phased array ultrasonic probe is attached to the scanning starting point, and the contact angle of the probe is recorded; s3, moving the probe along the spiral track of the outer surface of the container at the speed of 20mm / s, and collecting A-scanning echo signals of all array elements; s4, performing pulse compression and time domain deconvolution processing on the acquired signal to obtain a time domain echo sequence; s5, delay time is calculated according to the shell curvature, the array element signals are compensated, and focusing B-scanning data are generated; s6, splicing the B-scanning data at the step length of 0.5 mm * 0.5 mm, and reconstructing C-scanning data corresponding to the space coordinates; and S7, inputting the C-scanning data into the trained Transform network, and outputting defect types, sizes and three-dimensional coordinates. The method realizes high-frequency ultrasonic composite board defect accurate detection, remarkably improves the microcrack recognition rate, and is widely applied to safety evaluation scenes of high-pressure hydrogen storage tanks and pressure vessels.

The invention discloses a capillary pressure and contact angle synchronous characterization method and device of a microfluidic fluid interface, and relates to the field of interface analysis and multiphase seepage in pore media, and the method comprises the following steps: based on a pre-configured pore, particle and fluid binary image, distinguishing and extracting a fluid-particle contact interface contour and an attack / defense fluid interface contour; fitting and determining the curvature radius of each fluid interface contour through a watershed region division algorithm and reordering smoothing of Fourier descriptors; generating a multi-level size pore space based on the pore binary image, and obtaining a pore overlook radius; calculating a necking angle in combination with the curvature radius and the multi-stage size pore space to obtain an apparent contact angle and an intrinsic contact angle; and calculating the capillary pressure of the attack / defense fluid interface by combining the curvature radius, the pore overlook radius, the chip depth and the interfacial tension. According to the invention, high-precision technical support is provided for micro-fluidic multiphase seepage research.

The invention provides a gluing parameter design optimization method, system and equipment for optical cement, and the method comprises a material selection and pretreatment step which is used for selecting a proper material based on an input demand type and carrying out the pretreatment of the material; a viscosity dynamic control step for dynamically adjusting the viscosity; a coating mode selection step for selecting a proper coating mode; the coating thickness design step is used for presetting the coating thickness to achieve the best coating effect; the curing parameter optimization step is used for curing the coated product and improving the performance of the product; the material selection and pretreatment step at least comprises a surfactant adding operation which is used for improving the wettability of a glue solution to a curved surface, reducing an edge contact angle and reducing the risk of edge glue shrinkage; the coating mode selection step at least comprises preset coating track operation, targeted gluing parameter design and optimization can be carried out based on different requirements, especially curved screen panel production requirements, and the quality of a final product is improved.

The invention relates to the technical field of high polymer material processing and coating, in particular to an acrylic plate antifouling and antibacterial enhancing method based on a nano-composite coating, which comprises the following steps: S1, pretreating the surface of an acrylic plate; s2, preparing a nano composite coating; s3, coating: coating the surface of the acrylic plate with the activated surface with the nano-composite coating liquid, adopting a spin-coating method for coating, determining the spin-coating speed through an early test so as to control the thickness of the coating, checking the uniformity of the coating through vision after coating, and re-coating if non-uniform parts exist, in the coating process, the environment humidity is monitored through a humidity sensor and controlled at a low level so as to prevent coating defects, and the acrylic plate coated with the nano composite coating is obtained; and S4, coating curing. The antifouling and antibacterial effects of the coating are comprehensively evaluated by means of contact angle measurement, dirt adhesion experiments and the like, and the concentration or spin-coating speed of the nano material is adjusted according to a test result, so that the performance of the coating is further optimized.

The invention discloses a method and a device for measuring a dynamic contact angle of liquid on a solid surface. The method comprises the following steps: constructing a to-be-measured system containing a first liquid phase, a fluid phase and a solid phase; immersing the to-be-detected surface of the solid phase in the environment phase upwards or downwards; an end surface object is arranged opposite to the to-be-detected surface, and the two are immersed in the same environment phase; the relative distance and position of the two are adjusted, and a longitudinal fluid bridge is formed through the liquid adding device; the camera device obtains a fluid bridge interface contour image from the side surface; horizontally moving the surface of the end surface object or the solid phase, and applying transverse lateral dragging acting force to the fluid bridge to promote the fluid bridge to deform and contact the peripheral line to move or be about to move; and recording the time sequence change of the image, analyzing and calculating to obtain the time change relationship between the contact angle value and the three-phase contact point position value, and further determining the static, forward and backward contact angles and the contact angle hysteresis value. The method is simple and accurate, has wide applicability, and can cover reliable dynamic contact angle data measurement from hydrophilic to super-hydrophobic surfaces.

The invention belongs to the technical field of oil and gas reservoir engineering and multiphase seepage dynamic monitoring, relates to a characterization method of seepage behaviors of multiphase fluid in a porous medium, and particularly provides a dynamic construction method of a multiphase displacement capillary pressure-saturation relationship based on nuclear magnetic resonance. Comprising the following steps: S1, acquiring a low-field nuclear magnetic resonance relaxation spectrum of a porous medium in a gas-water two-phase displacement process; s2, determining two-phase fluid interfacial tension, a wetting contact angle and a rock surface relaxation rate; s3, determining the dynamic cut-off relaxation time of the displacement stage; s4, calculating equivalent capillary pressure; the residual water saturation is calculated, and the equivalent capillary pressure is the capillary pressure corresponding to the current displacement stage and is used for constructing a capillary pressure-saturation curve. According to the method, the capillary pressure change in the porous medium can be obtained only through spectral analysis without a centrifugal or mercury injection experiment.

The invention relates to a method for measuring wafer surface energy in hybrid bonding based on a chemically modified probe. The method comprises the following steps: carrying out surface pretreatment on an atomic force microscope probe and a wafer sample; constructing same functional group modification layers on the surfaces of the microscope probe and the wafer sample; the bending sensitivity, the elastic coefficient and the curvature radius of the probe are calibrated; acquiring a force-distance curve based on interaction between the probe covered by the functional group modification layer and the surface of the wafer sample, and calculating initial adhesion work based on the force-distance curve; and performing error correction on the initial adhesion work by using the surface energy measured by a contact angle method of a standard wafer sample, and establishing a quantitative mapping relation between the corrected adhesion work and the bonding strength. Compared with the prior art, the method has the advantages that the probe is subjected to functional group modification, the adhesive force of the surface of the sample is measured through the functionalized probe, and the surface energy of the wafer sample in mixed bonding is calculated in mixed bonding, so that the subsequent bonding strength of the sample is estimated.

The invention provides a method for determining the pore diameter lower limit and the effective pore volume ratio of movable fluid. The method comprises the steps that the temperature of each sample under the stratum in-situ condition is calculated according to the ground temperature gradient and the burial depth; correcting the surface tension coefficient of the water by using the calculated temperature; determining an average contact angle of water and shale; calculating capillary force, enabling the capillary force to be equal to reservoir fluid pressure, and calculating the lower limit of the aperture of the movable water; carrying out carbon dioxide adsorption, liquid nitrogen adsorption and mercury injection experiments on the sample to obtain connectivity pore volume-pore size distribution, and calculating effective pore volume in combination with a movable water pore size lower limit; carrying out a low-field nuclear magnetic resonance experiment, calculating the total pore volume of macropores, obtaining the total pore volume of small pores in combination with a carbon dioxide experiment, and finally calculating the total pore volume; and calculating the pore volume ratio of the effective pores by using the pore volume of the effective pores and the total pore volume. According to the method, the evaluation precision of the lower limit of the pore diameter of the shale reservoir movable fluid and the pore volume ratio of the effective pores is effectively improved, and the test cost is reduced.

The invention discloses a key structure parameter design method for a main driving bearing of an ultra-large type shield tunneling machine, and relates to the field of design of the main driving bearing of the ultra-large type shield tunneling machine. The key structure parameter design method comprises the following steps: acquiring a rock-soil CT image of a stratum, a crack distribution image and working parameters of the shield tunneling machine, and extracting a rock hardness gradient, a crack direction angle and a soil layer non-uniformity index; generating geologic feature data; establishing a circumferential load prediction model according to the geological characteristic data, and calculating an equal angle value and an overturning moment to obtain dynamic load spectrum data; constructing a contact angle distribution function based on the dynamic load spectrum data, and generating asymmetric contact angle three-dimensional curve data; seamless butt joint with CAM is achieved through space projection transformation, the performance of the bearing is finally embodied, finite element analysis shows that stress distribution is more uniform, the service life of the bearing is prolonged, and cutting force and material loss are reduced through technological parameter optimization.

This invention relates to the technical field of surface lubrication and friction measurement of machinery, and provides an apparatus and method for measuring the energy barrier at the surface solid-liquid interface of a microstructure. [Solution] The apparatus includes a micro-pump, a fixed elbow, a capillary tube, an upper contact surface, a lower contact surface, a droplet, a micro-movement stage, and a high-speed microscope camera. In this method, the micro-pump transports liquid to form a droplet between the upper and lower contact surfaces, the micro-movement stage is used to drag the lower contact surface at a constant speed to slide the droplet, and the high-speed camera monitors the deflection deformation caused by the droplet drag force of the capillary tube, calculates the dynamic drag force, and integrates the drag force-displacement curve to obtain the energy consumed by the droplet to overcome the microstructure. Finally, the solid-liquid interface energy barrier per unit area is obtained, overcoming the limitations of the conventional contact angle method, which cannot measure the dynamic interface energy barrier, and enabling direct and quantitative measurement of the surface solid-liquid interface energy of the microstructure.

The present application discloses a test cartridge, a method for preparing a test cartridge, and a method for using the test cartridge, comprising: a cartridge body having a closed end at one end and an open end at the other end, the cartridge body including a reaction chamber, a cleaning chamber, and a detection chamber connected in sequence, the reaction chamber being used to load a sample to be tested and a reaction solution mixed with magnetic beads, the detection chamber being loaded with a detection solution, and the cleaning chamber being loaded with a cleaning solution and a separator liquid, the separator liquid being used to separate the cleaning solution from the reaction solution and the cleaning solution from the detection solution, the separator liquid having a depth of h, a contact angle between the separator liquid, an upper liquid phase, and the inner wall of the cleaning chamber being θ1, a contact angle between the separator liquid, a lower liquid phase, and the inner wall of the cleaning chamber being θ2, and a radius of the cleaning chamber being r; and a cartridge cover being sealed and connected to the open end of the cartridge body. The present application avoids the use of a separator, thereby simplifying cartridge assembly.

The invention discloses an antistatic ABS material antistatic performance detection and analysis system, and relates to the ABS material antistatic performance detection technology field, and the method comprises the following steps: generating a steady state relative humidity set point sequence at a set temperature, using 60 DEG C gloss and white light interference to quantify surface roughness, and calculating an effective contact area amplification amount; calculating the adsorption wet film coverage based on the contact angle spectrum constant; carrying out four-probe measurement under different electrode relative orientation angles in double processes of humidifying and dehumidifying, and extracting a humidifying threshold value, a dehumidifying threshold value and a lag ratio; and calculating a collaborative percolation threshold index according to the effective contact area amplification amount, the adsorption wet film coverage degree, the direction factor of threshold inversion and the critical connection degree, and giving a passing conclusion of a target humidity interval. According to the method, stable positioning and reliable release judgment of the threshold value of the antistatic ABS material can be realized.

The invention provides an in-situ emulsion surfactant optimization method, and belongs to the technical field of oil and gas field development engineering, and the method comprises the following steps: S1, constructing an emulsion in-situ generated droplet property characterization device; s2, injecting the simulated oil and the surfactant solution into an emulsion in-situ generated droplet property characterization device at a constant speed, preparing an emulsion, and injecting the simulated oil and the surfactant solution at a preset flow ratio and a preset speed; s3, observing the type of the emulsion, and measuring the particle size and the contact angle of the emulsion; and S4, repeating the steps S2 to S3, comparing the emulsifying properties of the surfactants according to types and concentrations, and preferably selecting the type and concentration of the oil displacement surfactant suitable for reservoir in-situ oil. According to the method, the process that in-situ emulsion generates liquid drops under the reservoir condition is simulated, the properties of the liquid drops of the in-situ emulsion are quantitatively represented, and the surfactant suitable for the reservoir is preferably selected.

The invention belongs to the technical field of surface modification, and particularly relates to a super-hydrophobic insulating coating with a surface microstructure and a preparation method and application of the super-hydrophobic insulating coating. The defects of poor environmental stability, low regulation and control precision, insulation performance attenuation and the like in the prior art are overcome, the static contact angle of the disclosed super-hydrophobic insulation coating is larger than or equal to 150 degrees, the rolling angle is smaller than or equal to 5 degrees, meanwhile, the insulation strength is larger than or equal to 90% of that of an original substrate (the breakdown field strength is larger than or equal to 20 kV / mm), and collaborative optimization of the super-hydrophobic performance and the insulation performance is achieved; moreover, after the coating is naturally aged outdoors for 3 years, the contact angle change rate is smaller than or equal to 10%, the insulation strength attenuation rate is smaller than or equal to 8%, and the long-term environmental stability of the super-hydrophobic insulating coating is effectively improved. A precise regulation and control mechanism is also established based on a molecular dynamics simulation-based low-droplet adhesion microstructure insulation surface design method, so that the droplet contact time is reduced by more than 60% compared with a flat surface, the instantaneous leakage current is reduced by 40%-60%, and the method not only adapts to a polluted environment with the temperature range of-40 DEG C to 180 DEG C and the salt mist concentration of less than or equal to 0.5 mg / m, but also meets the preparation requirements of power equipment with complex shapes.

The invention discloses an optimal selection method of a surfactant for an oil reservoir, and belongs to the technical field of oil development. The optimal selection method comprises the following steps: preparing N pretreated parallel plunger samples, displacing a simulated oil layer with crude oil, aging the plunger samples under a formation condition until the plunger samples reach the wettability of an oil reservoir, and sampling and measuring an initial contact angle; performing oil displacement on the N aged plunger samples by using N surfactants to obtain corresponding oil displacement efficiency, and sampling and measuring a contact angle; comprehensive indexes are calculated based on the oil displacement efficiency, the contact angle and the initial contact angle, and the surfactants are sorted according to the comprehensive indexes. According to the method, a parallel plunger sample is selected to carry out an oil displacement efficiency experiment by adopting different surfactants in a simulated oil layer state, the performance of the surfactant is evaluated based on the oil displacement efficiency experiment and indexes such as wettability and oil displacement efficiency obtained before and after oil displacement implementation, finally a comprehensive index is selected, and the surfactant is preferably selected based on the comprehensive index.

The present invention provides a slit nozzle, a substrate processing device and a substrate processing method, which can suppress the generation or amount of treatment liquid marks on the front end portion when the scraper is brought into contact with the front end portion of the slit nozzle to which the treatment liquid is attached and moves relative to each other. The present invention satisfies the contact angle condition. That is, it satisfies the condition that the contact angle (θn) of the treatment liquid relative to the nozzle side contact area in contact with the scraper in the surface of the front end portion is greater than the contact angle (θs) of the treatment liquid relative to the scraper side contact area in contact with the front end portion. Therefore, as the scraper moves relative to each other, the movement destination of the treatment liquid between the scraper and the front end portion of the slit nozzle is mainly the scraper. No treatment liquid remains on the contact track, or even if it remains, the remaining amount of treatment liquid is significantly reduced compared to the past.

The invention discloses a transient contact angle calculation method for an angular contact ball bearing. The method comprises the following steps: constructing an angular contact ball bearing model; performing simulation by using the angular contact ball bearing model to obtain a contact stress distribution diagram; identifying a typical elliptical contact area in the contact stress distribution diagram, and calibrating a contact center of the typical elliptical contact area; extracting a sphere center coordinate and a bearing geometric center coordinate of the angular contact ball bearing model, and jointly constructing a first vector from the sphere center to the contact center and a second vector from the bearing geometric center to the sphere center with the coordinate of the contact center; and according to a space vector included angle formula, calculating an included angle between the first vector and the second vector as a transient contact angle and outputting the transient contact angle. The invention further provides a transient contact angle calculation device. The method provided by the invention can solve the problems of difficult measurement, insufficient calculation precision, poor adaptability and the like in the existing contact angle evaluation means.

The present invention relates to the field of metal processing and manufacturing technology, and discloses a method for measuring and calculating the surface tension of a metal melt. The method calculates the length 2a, height h, and bottom length 2l of a metal ball by identifying the coordinates of the endpoints of a melted metal ball. First, the coordinates of the endpoints of the metal ball are obtained through image recognition technology; then, the relevant geometric parameters of the ball are calculated. Next, using these geometric parameters, the surface tension of the metal melt is calculated according to a known physical model. Compared with traditional surface tension measurement methods, the present invention does not require complex ellipse fitting or the solution of contact angles, thereby simplifying the calculation process. In addition, the method of the present invention has high recognition accuracy, strong anti-interference ability, short calculation steps, and takes up less memory space after programming implementation. This method not only improves measurement efficiency, but also reduces the requirements for hardware equipment.

The application is suitable for the technical field of machine tool combination assembly, and provides a micro contact joint surface static friction coefficient calculation method, which comprises the following steps: obtaining joint surface characteristic parameters; based on fractal theory and elastic theory, constructing base additional deformation and micro convex body normal deformation equation, through micro stress analysis, establishing single micro convex body deformation geometric parameters; considering three deformation stages of micro convex body, obtaining joint surface contact area and contact load; using modified island distribution function to integrate joint surface real contact area and contact load in different deformation stages, obtaining joint surface real contact area and contact load; considering the influence of static friction coefficient on contact surface characteristics, establishing joint surface static friction coefficient model. The application establishes surface static friction coefficient model from the micro contact angle, and simultaneously considers the interaction of micro convex body and base and three stages of material elastic, elastic-plastic and complete plastic deformation.

The invention provides a method for analyzing the wetting behavior of a liquid drop on a rough solid surface under the action of an electric field, and the method comprises the following steps: S1, building an initial simulation system and a simulation model based on a research and information collection result; s2, configuring operation parameters of the simulation model, and executing simulation calculation; s3, in the molecular dynamics simulation process, applying electric fields with different intensities, and monitoring the state change of the simulation system until the simulation system reaches dynamic balance; and S4, exporting the calculation data in the dynamic balance state, and carrying out visualization processing and data analysis on the calculation data to summarize the internal law of the calculation data. Influences of electric field intensity and roughness factors on complex electrowetting are described through a contact angle and some interface characteristics, and an electrowetting expansion mechanism of micro-nano liquid drops on a rough wall surface is explained from a microscopic perspective.

The invention relates to the technical field of crystal structure prediction, and discloses a quantum algorithm-based energetic CxNyOz crystal structure prediction method, which comprises the following steps of: calculating an evaporation and diffusion dimensionless number and capillary pressure by obtaining surface tension, a contact angle, a geometric feature scale, temperature, partial pressure, a diffusion coefficient and an evaporation rate; establishing a residual solvent mole fraction and solvent chemical potential sequence; constructing a binary layer occupancy model Hamiltonian containing layer occupancy energy, adjacent layer action energy, a capillary pressure volume term and a molecular polarity action term, and obtaining a hierarchical occupancy number by using a quantum approximation optimization algorithm; calculating interlayer respiration and shear frequency and mode volume sensitivity based on a quantum variation algorithm; and finally, the lattice spacing and the prediction result are obtained through cost functional minimization, and accurate prediction and quantitative analysis of the structure of the energetic crystal under the unbalanced desolvation condition are realized.

The present application belongs to the technical field of bearing-rotor system vibration characteristic analysis, and discloses a vibration characteristic analysis method of misaligned bearing-rotor system under foundation motion. The rotating shaft is discretized into multiple beam elements; the kinetic energy expression and the potential energy expression of the beam elements under the foundation motion are obtained; the stiffness matrix, the mass matrix and the additional effect matrix of the elements are obtained after the kinetic energy expression and the potential energy expression are substituted into the Lagrange equation; the corresponding matrix of the rotating shaft is obtained. The disc is considered as a concentrated mass point, and the same modeling method as the beam element is adopted to obtain the mass matrix and the additional effect matrix of the concentrated mass point. The influence of the misalignment of the angular contact bearing on the bearing contact is considered; the contact angle of the ball under the misalignment state and the clearance between the ball and the raceway are solved based on the function method; the contact deformation between the ball and the raceway is calculated on the basis of further considering the displacement of the inner and outer rings of the bearing, and finally the supporting force of the misaligned angular contact bearing is obtained.

This invention discloses a method for predicting the volume of fracturing fluid in shale oil, comprising the following steps: Step 1, processing downhole rock samples or outcrops from the same stratum of the shale oil reservoir into standard cores, testing the microstructure of the standard rock samples, obtaining the pore parameters of the standard cores, and conducting wetting contact angle tests; Step 2, conducting spontaneous absorption experiments on the standard cores and calculating the field-scale absorption area; Step 3, establishing a multi-scale pore absorption model based on the rock microstructure and the characteristic parameters obtained from the spontaneous absorption experiments, and calculating the absorption volume using the multi-scale pore absorption model. This invention can achieve quantitative calculation of the volumetric fracturing absorption volume in shale oil horizontal wells.

Provided is a base material film for forming an inorganic thin film layer, wherein: a surface treatment is performed on at least one surface of a base material film that contains a polypropylene-based resin as a main component; with respect to contact angle with water of the base material film, the ratio (C1 / C2) of the contact angle (C1) with water of an untreated surface to the contact angle (C2) with water of a treated surface is 1.4 or more; and the ten-point average roughness (Rzjis) of the surface of the base material film is 15 nm or less.

The invention discloses a quantitative evaluation method for a composite material patching and cementing maintenance surface water film test, and relates to the technical field of maintenance surface water films, and the quantitative evaluation method comprises the steps of 1, test preparation, 2, contact angle measurement and 3, maintenance surface evaluation. In the first step of test preparation, the defects of scratches, hole pitches and eroded damaged surfaces of the surfaces of the metal components of the airplane are found in time, then corresponding matched patches can be screened in time, the surface repairing problem of the airplane is solved, the service life of the airplane is prolonged, and the operation risk and maintenance cost of the airplane are reduced. In the step 2, in contact angle measurement, the number of broken water films is reduced, the cleanliness of the surface of the patch is improved, the problem that the adhesion force is reduced is solved, then the quality and reliability of the repaired composite material component are improved, the safety risk caused by inaccurate cleanliness is reduced, and the safety of an aircraft structure is improved.

The invention discloses a water contact angle prediction method, a control system, a storage medium and electronic equipment, and belongs to the field of material surface property prediction.The water contact angle prediction method comprises the steps that image data are acquired, water contact angle data are recognized according to the image data, and a prediction model is established according to the water contact angle data; setting a target range of the water contact angle data, and calculating a water contact angle predicted value and an experimental parameter predicted value according to the prediction model; performing an experiment according to the experiment parameter predicted value, calculating a difference value between the water contact angle data of the experiment and the water contact angle predicted value, judging whether the difference value exceeds a preset angle error or not, and if yes, re-establishing a prediction model; by analyzing the relationship between experimental parameters and water contact angle data and establishing a prediction model, the change of the water contact angle under different experimental conditions can be rapidly predicted, a researcher or a producer is helped to optimize experimental design, accurate control over the water contact angle is achieved, and the material performance and the production efficiency are effectively improved.

The invention relates to a method for reducing adhesion of a molten aluminum-silicon dioxide friction interface. The method comprises the following steps: (1) establishing a molecular dynamics model: establishing the molecular dynamics model consisting of a substrate and crystal aluminum; the substrate consists of three layers of silicon dioxide; the crystal aluminum is positioned at 30 parts above the substrate; (2) executing molecular dynamics simulation and data processing: moving aluminum liquid drops onto a substrate after the aluminum is completely molten, changing the magnitude of force after relaxation reaches balance, calculating the friction force, speed, interface energy and contact angle of the liquid drops, analyzing the influence of the change of the applied force on the adhesion of the liquid drops, and calculating the adhesion of the liquid drops; and the contribution of the power of each part to the system balance and the change rule along with the external force are calculated and analyzed. And the viscosity reduction effect of the molten aluminum can be achieved by changing the solid temperature. The two viscosity reduction modes provide an effective method for reducing adhesion of molten aluminum on a silicon dioxide interface, and further provide theoretical guidance for regulating adhesion between a liquid interface and a solid interface.

To provide a novel technique regarding a material kit.SOLUTION: A material kit contains a curable composition and a layer forming composition for forming an adhesion layer which adheres the substrate and the curable composition, where the curable composition contains a polymerizable compound (a1), photoinitiator (b1) and solvent (d1), the viscosity of the curable composition at 23°C and 1 atmosphere is 1.3 mPa s or more and 60 mPa s or less, the content of the solvent (d1) for the total volume of the polymerizable compound (a1), the photoinitiator (b1) and the solvent (d1) is 5 vol.% or more and 95 vol.% or less, the boiling point of the solvent (d1) is less than 250°C at 1 atmosphere, the contact angle of the curable composition to the adhesion layer is 1.8[°] or less, and the contact angle of a composition in the state where the solvent (d1) is removed from the curable composition to the adhesion layer is 11[°] or more and 19[°] or less.SELECTED DRAWING: Figure 1

The invention relates to a filter insert (10) for a fluid filter device, comprising: i) at least one particle filter stage (12) for separating solid impurities (14) from the fluid (16) to be filtered, comprising at least one filter medium, ii) at least one coalescer stage (18), which is different from the particle filter stage (12), for agglomerating liquid impurities (20) dispersed in the fluid (16) to be filtered, and iii) at least one separation stage (22) at a distance from the coalescer stage (18) for separating agglomerated liquid impurities (20) from the fluid (16) to be filtered, comprising at least one first more hydrophobic layer (24), wherein the first more hydrophobic layer (24) has a contact angle for water of more than 90.2°, wherein the at least one coalescer stage (18) comprises: ii.1) a more hydrophilic layer (26), wherein the more hydrophilic layer (26) has a contact angle for water of 90.0° or less, and ii.2) a second more hydrophobic layer (28) which contacts the more hydrophilic layer (26) and / or is connected to the more hydrophilic layer (26), wherein the second more hydrophobic layer (28) has a contact angle for water of more than 90.2°.

The invention relates to the technical field of superconducting magnet manufacturing and process simulation, and discloses a prediction method, a recommendation method, a device, equipment and a medium for a resin filling process, the method comprises the following steps: obtaining first fluid parameters and first structure parameters, the first fluid parameters comprise resin density, viscosity, surface tension and contact angle, and the first structure parameters comprise the resin density, the viscosity, the surface tension and the contact angle; the first structure parameters comprise the porosity and the permeability of the resin filling area; converting the first fluid parameter and the first structure parameter into a first static feature vector; inputting the first static feature vector into a target neural network model, and determining a power function parameter according to the output of the target neural network model; according to the power function parameters, a resin filling curve is determined, and the resin filling curve is a curve with the filling proportion changing along with time and is used for predicting the resin filling process in the vacuum pressure impregnation technological process. The complete filling curve can be directly output through neural network prediction, and the prediction accuracy and the prediction efficiency are improved.