224 results about "Adhesion force" patented technology

The utility model relates to an adhesive tape 90-degree stripping adhesive force testing device, which belongs to the field of adhesive tape production equipment and comprises a base, the base comprises a bottom plate and a mounting seat, the upper surface of the bottom plate is horizontal to form a mounting surface, and a testing plate is detachably mounted on the mounting surface through a fastening component; a first guide rail is fixedly arranged on the base and inclines leftwards, the included angle between the first guide rail and the horizontal direction is 45 degrees, a sliding base is arranged on the first guide rail in a reciprocating motion mode along the first guide rail, a mounting block is fixedly arranged on the sliding base, and a connecting block is mounted on the mounting block. The top end of the connecting block is arranged at the bottom end of the mounting block through a tension sensor, and a clamping assembly used for clamping an adhesive tape is further arranged on the connecting block; the mounting base is further provided with a driving mechanism used for driving the sliding base to reciprocate along the first guide rail. According to the utility model, the influence of dust and foreign matters on the test process can be avoided, so that the test process is ensured to be smoothly carried out and the accuracy of the test result is ensured.

The invention relates to an optical resin composition and application, and relates to the technical field of nanoimprinting, the optical resin composition comprises the following components: a (methyl) acrylate monomer, a (methyl) acrylate prepolymer with a polyether or polyester chain segment and a photopolymerization initiator; the (meth) acrylate monomer contains a C6-30 aromatic hydrocarbon group. The resin composition for nanoimprint provided by the invention has good optical performance when being used for preparing an optical thin film or an optical device; the composition provided by the invention has good flexibility, and when the composition is used for preparing the nano pattern, the good flexibility is beneficial to resisting the adhesive force and friction force of a mold in the demolding process, so that the deformation and brittle failure of the pattern are avoided, and the integrity and precision of the nano pattern are kept.

The invention discloses a biological patch material with dry-state adhesion and wet-state easy stripping characteristics and application thereof, and belongs to the field of biological medicine. The biological patch material is prepared according to the following steps: by taking water-soluble protein as a template and copper ions in water-soluble copper salt as a metal coordination center, carrying out self-assembly on the template and drug molecules with phenolic hydroxyl structures to form nanoflowers; mixing the acrylamide, the sodium alginate, the water-soluble calcium salt and the nano-flowers to obtain the water-soluble calcium-based water-soluble nano-flower fertilizer. The biological patch material is adhered to the skin through electrostatic interaction, covalent bonds, physical interpenetration and topological tissues. The patch has skin adhesion in a dry state, so that the patch is convenient to fix; after the patch is in contact with burnt skin, the patch absorbs water and swells, the adhesive force is obviously reduced, and painless, easy and non-invasive stripping is realized. In addition, the patch has immunoregulation performance, can prevent stimulation and anaphylaxis caused by long-term contact with the skin, and promotes burn repair.

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.

According to the injectable double-layer drug sustained-release hydrogel and the preparation method and application thereof, hydrogel swelling and degradation curve and mechanical property detection shows that extrusion secondary injury to optic nerves can be avoided due to the swelling ratio ratio of 14% of inner-layer hydrogel to 10% of outer-layer hydrogel; the hydrogel precursor solution prepared by the preparation method disclosed by the invention has proper mechanical strength and adhesive force so as to cope with an in-vivo environment, has good injectability, can control the gelling time within 2 minutes, perfectly conforms to a short time window of optic nerve decompression surgery, and has extremely high clinical practical value. The problems that the serious operation risk of cerebrospinal fluid leakage during optic nerve local administration and a traditional local administration carrier lacks in-situ stability and is prone to displacement are solved, the damaged microenvironment can be cooperatively regulated and controlled, and long-acting slow release of nerve regeneration is promoted; multiple functions such as operation safety, medicine long-acting slow release, biocompatibility and operation convenience are successfully integrated, and an unprecedented effective strategy is provided for solving the clinical problem of optic nerve injury.

The invention discloses a chitosan composite temperature-sensitive gel microsphere for vaginal administration and a preparation method thereof, and relates to the technical field of biological medicines.The preparation method comprises the steps that high-purity chitosan and a temperature-sensitive polymer are mixed, then a cross-linking agent is dropwise added in a gradient mode to form pre-gel, after medicine is ultrasonically embedded, spraying or micro-fluidic forming is conducted, and the chitosan composite temperature-sensitive gel microsphere is obtained; carrying out surface modification and freeze drying by using a stabilizing aid to obtain microspheres; the system is composed of a chitosan matrix, a poly N-isopropylacrylamide temperature-sensitive polymer, a sodium tripolyphosphate cross-linking agent, an antifungal / antiviral / hormone drug and a hydroxypropyl methyl cellulose stabilizing aid, the particle size of microspheres is 50-300 [mu] m, the microspheres are rapidly gelatinized at 37 DEG C, the half-life period of the drug is longer than 8 h, the adhesive force is improved by 30% or above, and the residence time is prolonged to 12 h or above. According to the invention, by constructing a temperature-sensitive interpenetrating network structure and performing surface functional modification, body temperature triggered in-situ gelation, long-acting slow release and strong adhesion synergism are realized, and the local treatment effect and patient compliance are remarkably improved.

The invention discloses a degradable, asymmetric-adhesion and non-swelling Janus hydrogel adhesive as well as a preparation method and application thereof, and belongs to the technical field of functional composite materials and preparation thereof. The problems that an existing Janus hydrogel cannot be degraded, is weak in adhesive force, adheres and is high in swelling are solved. Polyethylene glycol with double bonds, sodium alginate and chitosan are used for physical and covalent cross-linking, a degradable hydrogel substrate is constructed and then soaked in a phosphate buffer solution for swelling equilibrium, then a solution containing chitosan is used for preparing an adhesion coating, and the degradable and asymmetrically-adhered non-swelling Janus hydrogel adhesive is obtained. The adhesive can be applied to the biomedical fields of wound healing anti-adhesion, in-vivo degradability, intestinal repair and the like, and can also be used for adhesion of bioelectronics, epidermal physiological signal monitoring sensors, epidermal muscle fatigue monitoring sensors, rat subcutaneous muscle physiological signal monitoring sensors and muscle fatigue monitoring sensors.

The utility model discloses an easily torn sealing film type jelly cup which comprises a cup body and a stress piece, the bottom of the cup body is connected with an annular cup foot, the top of the cup body is bonded with a sealing film, the surface of the top of the cup body is bonded with a tearing piece, the tearing piece is connected with one end of the sealing film through the tearing piece, and the stress piece is connected with one end of the sealing film. A plurality of grooves are formed in the surface of the cup body and located at the connecting position of the stress piece and the sealing film, the stress piece can drive one end of the sealing film to be lifted upwards when the stress piece is pulled and lifted, the contact area of the sealing film and the cup body in the area is reduced due to the existence of the grooves, and therefore the sealing effect is improved. Due to the fact that the groove is formed in the sealing film, the adhesive force between the sealing film and the cup body at the position is reduced, when the sealing film is opened, the sealing film and the cup body can be separated through small external force under the effect of the groove, an initial tearing point is formed, and therefore the sealing film can be torn off more easily and conveniently for a child with small hand force.

The invention relates to a test system and method for measuring the adhesion characteristic of a cutter-soil interface, and the structure of the test system for measuring the adhesion characteristic of the cutter-soil interface comprises a cabinet which is used for accommodating a rotary loading mechanism and a data collection assembly; the adhesive force testing mechanism comprises a soil tank arranged on the cabinet, a cutter in contact with a soil sample in the soil tank, a cutter holder connected with the cutter and a transmission shaft connected with the cutter holder; the rotary loading mechanism comprises a loading mechanism and a rotating mechanism arranged on the loading mechanism, and the rotating mechanism is connected with the transmission shaft; and the data acquisition assembly comprises a load-torque sensor and a displacement sensor which are arranged on the rotary loading mechanism. According to the invention, the tool is subjected to downward pressure while rotating, and the complex movement condition and stress state of the tool in actual operation are truly simulated, so that the adhesion characteristic of the tool-soil interface is evaluated more accurately.

The invention belongs to the field of antitumor drugs and relates to a nano chelating agent capable of simulating a tumor epithelial-mesenchymal transition process and inducing ferroptosis as well as preparation and application of the nano chelating agent. The preparation method of the nano chelating agent is simple and low in cost, and specifically comprises the following steps: mixing and stirring MgSO4 and ethylenediamine tetraacetic acid disodium salt (EDTA) in a molar ratio of (0.5-2): 1, continuously stirring for 2-14 hours at the reaction temperature of 4 DEG C, and centrifuging to obtain the EDTA-Mg nano chelating agent. The EDTA-Mg nano chelating agent can destroy the connection between tumor cells, so that the adhesive force of the tumor cells is weakened, the cytoskeleton is remodeled, the polarity disappears, and the tumor cells are changed into a round cell form from an epithelial cell form, thereby realizing the simulation of the tumor epithelial-mesenchymal transition process. In addition, Fe < 2 + > of ferritin can be swept, and EDTA-Fe is formed. And EDTA-Fe reacts with rich H2O2 in the tumor to generate. OH with strong oxidizing property, so that mitochondria damage and lipid peroxidation are caused, and the tumor ferroptosis is induced.

An adhesive force confirmation device (50) is a device for confirming the adhesive force of electrodes (20, 30) used for an electro-therapeutic apparatus (1), and is provided with a pasting part (60) capable of pasting an adhesive part of the electrodes (20, 30). The adhesive part (60) includes a reference surface (63) and active surfaces (61, 62) connected to the reference surface (63), and the active surfaces (61, 62) are configured such that, in a state in which the adhesive part is adhered, the side of the active surfaces (61, 62) that is farther from the reference surface (63) is easier to peel the adhesive part than the side of the active surfaces (61, 62) that is closer to the reference surface (63).

The utility model discloses a high-low temperature alternating damp-heat test box for a high-temperature-resistant adhesive tape, relates to the technical field of test boxes, and solves the problem that in the prior art, after the adhesive tape is subjected to a high-low temperature alternating damp-heat test, the adhesive tape and a test plate can form relatively strong adhesive force, and the adhesive tape is difficult to be quickly taken down. Comprising a test box body, a placing disc is slidably connected in the test box body, a connecting plate is longitudinally slidably connected in the placing disc through a lifting assembly, the lifting assembly is driven by a first lead screw, and a test plate is connected to the connecting plate; the end part of the first screw rod is connected with a gear, a cavity is formed in the test box body, a rack is connected in the cavity, and the gear is meshed with the rack. The device has the beneficial effects that the test plate can be disassembled, high-temperature-resistant glue needing to be tested can be quickly taken down, and the operation efficiency is improved.

Provided are a resin multilayer substrate in which peeling of a protective film that protects the surface of a resin laminate is suppressed, and an electronic device provided with the resin multilayer substrate. The resin multilayer substrate is provided with a resin laminate. The resin laminate has a first region, a second region, and a third region as a layer direction region. The resin multilayer substrate is provided with a first resin material that is bonded from the surface of the first region to the third region, and a second resin material that is formed in the third region. The second resin material covers a portion of the first resin material and covers an end portion of the first resin material present in the third region. When E1 represents the Young's modulus of the first resin member and E2 represents the Young's modulus of the second resin member, the Young's modulus of the first resin member and the Young's modulus of the second resin member are set to E1lt. And E2. When AD1 represents the adhesion force between the first resin member and the resin laminate, and AD2 represents the adhesion force between the second resin member and the resin laminate, AD2 > = AD1.

The utility model discloses an adhesive cutting device, and relates to the technical field of adhesive processing. The glue supply device comprises a platform, the top of the platform is fixedly connected with a frame, and the top of the frame is fixedly connected with a glue supply cylinder; a self-cleaning assembly is arranged in an inner cavity of the frame and comprises a cleaning box, and one side of an inner cavity of the cleaning box is movably connected with a reciprocating lead screw. The motor drives the lead screw to rotate, so that automatic movement of the cutter is achieved, the driving gear on the surface of the driving lead screw is meshed with the driven gear on the surface of the reciprocating lead screw, the scraper is driven to reciprocate, the cutter moves into the cleaning box together, and the scraper reciprocates in the cleaning box. Residues attached to the surface of the cutter are effectively scraped through the glue scraping opening, the electric heating plate is arranged in the cleaning box and can heat the environment in the cleaning box so that the scraped residues can be softened, the adhesive force of the residues is reduced, and follow-up clearing operation is facilitated.

The application belongs to the field of aerospace coating, and particularly relates to a primer for the outer protective coating of a spacecraft, a preparation method and a use method. The primer comprises the following raw materials in parts by weight: tackifier 2-8 parts, alkyl silicone oil 5-10 parts and diluent 80-90 parts. The primer contains a large amount of inorganic / organic groups, can form a strong chemical bond with the substrate, and improve the adhesion of the coating. Meanwhile, the primer can also have interpenetration synergy with the silicone resin in the coating to form a PIN network structure, further improving the adhesion. In addition, the primer can also be activated to generate silanol under the condition of water molecules, and hydrolysis and bonding with inorganic media to form a firm silicon-oxygen bond. That is, the primer has inorganic / organic dual properties, is applied between organic and inorganic materials, and forms a micro organic-inorganic interface between the two, thereby enhancing the adhesion.

The utility model provides a surface adhesive force measuring instrument using a weighing method, which relates to the technical field of measuring instruments and comprises a main body, a surface adhesive force measuring instrument and a weighing device, the inspection assembly is arranged in the main body and the inspection cavity and used for measuring the adhesive force of the adhesive surface, and the inspection assembly internally comprises a clamping piece and a balancing weight; and the weight increasing assembly is arranged at the bottom of the inspection cavity and is used for performing weight increasing treatment on the balancing weight. According to the device, the detection assembly is matched with the weight increasing assembly to continuously increase the weight of the balancing weight in the matched detection process, so that the detected weight is gradually increased, a user does not need to repeatedly change the balancing weight, the use convenience of the device is improved, the clamping piece is matched with the detection assembly to quickly and stably fix and clamp the adhesive tape, and the detection efficiency is improved. And the situation that the gravity center is unstable or the inspection result is inaccurate due to loosening and sliding of the adhesive tape in the inspection process is prevented.

The invention relates to the technical field of slide processing. The invention discloses a slide treatment method for improving wall adhesion of 293T cells. The slide processing method comprises the following steps: preparing a cleaning solution; putting the slide into the cleaning solution, soaking, taking out the slide, washing the slide with deionized water, and putting the slide into a drying oven for drying; immersing the dried slide into PLL treatment liquid for 3-7 minutes, taking out and airing; wherein the cleaning solution is prepared from the following raw materials: potassium dichromate, water and concentrated sulfuric acid; the PLL treating fluid is poly-L-lysine with the mass concentration of 0.05%-0.15%, and the solvent is deionized water. The invention further discloses the slide prepared by the slide treatment method for improving the wall adhesion of the 293T cells. According to the slide treatment method, the adhesive force of the slide to 293T cells can be effectively improved, and the cell adherence is enhanced.

The invention relates to the technical field of robot grabbing, in particular to a non-Newtonian fluid adhesion gripper based on shear thickening and grabbing equipment, the gripper comprises an adhesion module, a speed control module, a speed driving module and a switching module; the adhesion module comprises an adhesion film, a sealing mounting plate and shear thickening non-Newtonian fluid arranged in a containing space formed by connecting the adhesion film and the sealing mounting plate, and the fluid is in a soft state at a low shear rate, can be attached to the surface of an object, and is hardened at a high shear rate and locks the contact area to generate strong adhesion force; the speed control module comprises an inner distance transmission coupler and a stirring device and is used for applying a shearing effect to fluid to realize soft and hard state switching; the speed driving module comprises an outer distance transmission coupler and a driving device, and drives the stirring device through magnetic distance transmission torque; the switching module is used for installing the gripper on a mechanical arm or an assembly line, the gripper has the functions of grabbing stably and releasing quickly and can adapt to curved-surface, special-shaped and fragile objects, and the damage risk is reduced.

This communication cable (1) is provided with a twisted pair wire (TW), a sheath (20), and a silicone oil layer (30). The sheath has a solid form, and includes resin that is identical to resin contained in a material constituting an insulator as a material constituting the sheath. The silicone oil layer includes silicone oil having a viscosity of 300 CS-1000 CS inclusive. The adhesion force between the twisted pair wire and the sheath is 5N or more, and is equal to or less than the value (N) of the product of the cross-sectional area (mm2) of the insulator and the tensile strength (MPa) of the insulator.

The invention relates to the technical field of high polymer materials, and discloses a UV-cured acrylate / dynamic borate dual-network pressure-sensitive adhesive and a preparation method thereof, and the pressure-sensitive adhesive comprises the following components by weight: 50-65% of an acrylate mixed monomer; 15-20% of a dynamic boric acid ester crosslinking system; 1.5 to 3% of a UV photoinitiator; 2-8% of a functional auxiliary agent; and 15-20% of a reactive diluent. The preparation method comprises the steps of premixing system preparation, functional system compounding and UV-thermal synergistic curing, an interpenetrating structure of an acrylate covalent network and a dynamic borate network is constructed through UV curing, and the UV rapid curing characteristic and the self-repairing function of dynamic borate are combined; the problems that the cohesive force and the adhesive force of a traditional UV pressure-sensitive adhesive are difficult to balance, the traditional UV pressure-sensitive adhesive lacks a self-repairing function, and the weather resistance is insufficient are solved.

The present invention provides a conductive roller that can reduce frictional force without drastically increasing the hardness of the surface layer. [Solution] The present invention provides a conductive roller 1 comprising a shaft 2, an elastic layer 3 provided on the outer circumference of the shaft 2, and a surface layer 4 provided on the outer circumference of the elastic layer 3, wherein the surface layer 4 has an area ratio of 40% or more of the histogram portion where the adhesion force to the entire histogram measured using an atomic force microscope is 6 nN or less, and an area ratio of 30% or more of the histogram portion where the adhesion force to the entire histogram is 8 nN or more.

To provide an adhesive tape for capturing pests that offers excellent handling and capture efficiency. [Solution] An adhesive tape for capturing pests comprises a strip-shaped support base material 101, a first adhesive region 102 formed only in the central part of the support base material which can capture pests, including stink bugs, by adhesive force when they come into contact with it, and a second adhesive region 103 provided in at least a part of the periphery of the first adhesive region which has weaker adhesive force than the first adhesive region, and more preferably an adhesive tape for capturing pests wherein a non-adhesive region that is not adhesive is provided in at least a part of the region located outside the second adhesive region.

Separation of a sensor 11, which is attached to a scanning target object by an adhesive force due to a magnetic force generated between a magnet 12 and the scanning target object, from the scanning target object is suppressed.A sensor device 1 comprises a sensor 11, which is arranged on an outer circumferential surface 201 of a column 200 as a target object, which is a magnetic metal element serving as a scanning target object and which scans the column 200; a magnet 12, which is arranged to clamp the sensor 11 between the magnet 12 and the column 200; and a non-magnetic cover element 14, which is attached to the outer circumferential surface 201 of the column 200 in a state in which several elements, including at least the magnet 12 and the sensor 11, are mounted within the cover element 14 as mounted elements, and the sensor 11 is attached to the outer circumferential surface 201 of the column 200 by an adhesive force due to a magnetic force generated between the magnet 12 and the column 200.

The objective is to provide an image forming method, an image forming apparatus, an image, and an inkjet ink that can improve the varnishability of the formed image. [Solution] An image forming method comprising the steps of: applying an inkjet ink containing wax and a polymerizable compound to a substrate from an inkjet head; and irradiating the substrate to which the ink has been applied with an active ray to form an image, wherein the adhesion force distribution image Y obtained by measuring the force curve of the image surface using a scanning probe microscope is divided into two regions based on the magnitude of the adhesion force in a predetermined procedure, the region with low adhesion force is designated as region A, and the region with high adhesion force is designated as region B, and the area S of region A A The ratio S of the sum of the areas of region A and region B. A An image forming method that satisfies the condition / S is 0.70 or less.

A post-CMP cleaning composition and a post-CMP cleaning method are provided that can more effectively reduce impurities remaining on the surface of a polished object. [Solution] A post-CMP cleaning composition used to clean a polished object that has been subjected to chemical mechanical polishing (CMP), contains water, a water-soluble polymer, and a surfactant; when the surface of the polished object is covered with the post-CMP cleaning composition, when observed with an atomic force microscope, the restoring adhesion force, which is the force acting between the surfactant and a probe of the atomic force microscope having a tip curvature radius of 2 nm or more and 12 nm or less, is greater than 0 N / m and not greater than 0.07 N / m; and the surface roughness of the adsorption layer formed by adsorption of the surfactant on the surface of the polished object is greater than 0 nm and not greater than 0.4 nm.

The present invention relates to a medical device, comprising a plugging device and a delivery device. The plugging device includes a main body, a proximal connecting member and a distal connecting member connected to both ends of the main body. Wherein, the proximal connecting member is provided with a perforation for the pushing tube of the delivery device to pass through. The distal end of the pushing tube is combined with the distal connecting member. The outer surface of the main body is coated with a first sealing agent. The pushing tube includes a liquid injection channel for passing a second liquid. The second liquid combines with the first sealing agent to generate an adhesion force to fix the plugging device to a predetermined area. In the medical device of the present invention, the first sealing agent on the outer surface of the main body of the plugging device combines with the second liquid injected from the liquid injection channel to generate an adhesion force, so as to firmly fix the plugging device at the implantation position. Subsequently, the plugging device is not easily detached from the implantation position, effectively solving the problem of poor plugging effect of the plugging device.

The invention discloses growth factor loaded GelMA microspheres for promoting healing of infected wounds and a preparation method and application thereof. The preparation method comprises the following steps: enabling a mixed solution containing methacrylic anhydride gelatin and growth factors to flow into liquid nitrogen, and performing ultraviolet radiation to form microspheres; immersing the obtained microspheres into a mixed solution containing dopamine hydrochloride, zinc sulfate and 2-methylimidazole, and vibrating to obtain the drug-loaded microspheres for promoting healing of infected wounds. According to the microsphere, an outer layer structure formed by crosslinking 2-methylimidazole and Zn < 2 + > is introduced to the surface of a GelMA microsphere, so that the microsphere is endowed with antibacterial performance and a drug sustained-release function. In addition, the outer layer structure can load vascular endothelial growth factors (VEGF), and wound healing is further promoted. And by adding dopamine hydrochloride, the adhesive force of the surface of the microsphere is obviously enhanced, so that the microsphere can be better adhered to wound tissues, and the drug delivery efficiency is improved. The microspheres are particularly suitable for the fields of wound healing and tissue repair.

The invention discloses an electron beam curing acrylate pressure-sensitive adhesive and a preparation method thereof. The electron beam curing acrylate pressure-sensitive adhesive comprises the following raw materials: 90-120 parts of a diluent; 10 to 20 parts of photosensitive resin; 15 to 25 parts of tackifying resin; 0.5 to 5.0 parts of nano silicon dioxide; wherein the diluent is prepared from the following components in parts by weight: 40 to 60 parts of 2-ethylhexyl acrylate, 25 to 50 parts of butyl acrylate, 10 to 20 parts of glycidyl methacrylate and 1 to 10 parts of 2-hydroxyethyl methacrylate; the molecular weight of the photosensitive resin is 500 to 4000 g / mol; the tackifying resin is selected from acrylic resin. The electron beam curing acrylate pressure-sensitive adhesive prepared by the invention has excellent bonding performance, the initial adhesion is more than 20 # balls, the release force is more than 25.0 N / 25mm, the permanent adhesion is more than 192 hours, and the heat resistance is good.

This invention relates to a method for modeling the capillary evolution of humidity-related adhesion forces under micrometer-scale probes. This method establishes a physical relationship between ambient relative humidity and Kelvin radius, and calculates the Kelvin radius in conjunction with the initial volume of the liquid bridge, thereby constructing a parameterized model of capillary forces that characterizes the change in liquid bridge volume with ambient humidity. The influence of the liquid film on the solid surface is considered during model construction, enabling the model to more realistically reflect the formation and evolution of liquid bridges in actual micro / nano interfaces. As the two surfaces gradually move away, the relationship between the curvature of the liquid bridge interface and the Kelvin radius is established under the condition that the liquid bridge volume remains constant, thus achieving a continuous description of the evolution of capillary and adhesion forces during the separation process between the micrometer-scale probe and the sample interface. Furthermore, experimental measurements and model verification of micrometer-scale interface forces are conducted using a self-developed fiber Bragg grating probe.

The present invention discloses an adhesive gripper with a cross-scale structure that mimics the toes of a gecko. The gripper comprises a clamp bracket connecting mechanism, a steering gear connected to the clamp bracket connecting mechanism, a crank slider mechanism connected to the steering gear, the crank slider mechanism connected to two foot mounting seat connecting mechanisms, and the foot mounting seat and the gecko-like fold cross-scale controllable dry adhesive structure integrally cast. During gripping, the gripper uses the elastic force provided by the tension spring to cause the two symmetrically arranged gecko-like fold cross-scale controllable dry adhesive structures to obtain tangential displacement, causing them to undergo elastic deformation, thereby increasing the contact area between the dry adhesive material and the clamped object, thereby obtaining adhesion. During desorption, the interaction force between the slot pins provides shear displacement along the desorption direction, causing the dry adhesive material to gradually break away from contact with the clamped object, thereby eliminating the adhesion force. The gripper controls the adhesion state by changing the shear distance and shear direction, thereby achieving the conversion between adhesion and desorption of planar objects.