176 results about "Adhesion force" patented technology

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.

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 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 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.

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 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.

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.

The invention provides a cosmetic medical adhesive tape base material and a preparation method thereof, and relates to the technical field of medical adhesive tape base materials, the cosmetic medical adhesive tape base material comprises the following components by weight: 60-90 parts of polyethylene plastic, 10-40 parts of an ethylene-vinyl acetate copolymer, 0.5-5 parts of a chitosan derivative, 1-10 parts of a porous material, and 0.1-3 parts of a tyrosinase inhibitor. By optimizing the component proportion and introducing the functional material, the comprehensive performance of the cosmetic medical adhesive tape is improved. Through the synergistic effect of the polyethylene plastic and the ethylene-vinyl acetate copolymer, the flexibility of the base material is enhanced, the traction feeling is reduced when the base material is attached to the skin, meanwhile, the stable adhesive force is maintained, and repeated falling is avoided. The addition of the chitosan derivative endows the base material with natural antibacterial characteristics, inhibits wound infection risk, promotes epidermal cell repair, and shortens postoperative recovery cycle.

The utility model provides a hydrogel adhesion testing device for an oral ulcer patch. The hydrogel adhesion testing device comprises a base, a placement seat is fixed on the base, a patch body is placed on the placement seat, a positioning mechanism is arranged on the side of the placement seat, and a testing mechanism is connected above the placement seat in a lifting and sliding manner. The patch body is moved and positioned to the position under the testing mechanism through the positioning mechanism, alignment of the testing mechanism during testing is facilitated, meanwhile, the probe makes contact with hydrogel on the surface of the patch body through downward movement of the moving block, and certain pressure is applied. The pressure sensor starts to record the contact pressure and feeds back the numerical value of the contact pressure to the controller, the controller processes and stores the fed-back pressure, then the moving block moves upwards, the probe is separated upwards at a constant speed, and at the moment, the pressure sensor records the maximum pulling force in the separation process, namely the adhesive force; and the controller also processes and stores the adhesive force, so that the effect of testing the adhesion of the patch body is achieved.

The invention relates to a reversible adhesive flexible electrode material based on zinc ion activation, which is characterized in that polydimethylsiloxane is used as a main chain, and functionalization capable of responding to metal ions is realized through sulfydryl-alkene click reaction and subsequent imidazolation modification. The invention also provides a preparation method and application of the electrode material. The elastomer material disclosed by the invention has remarkably enhanced adhesive force, and can be stably attached to the surfaces of soft tissues such as cerebral cortex and spinal cord; under the action of Zn or after a competitive ligand is introduced, the adhesive force is reduced, and mild stripping is realized. The material is simple in preparation process and excellent in biocompatibility, can be used for constructing a large-area flexible electrode, is suitable for acute and chronic nerve electrophysiological signal acquisition, and is particularly suitable for epilepsy lesion positioning and brain function research.

The invention discloses a gel plaster composition based on an epoxy cross-linking agent. The gel plaster composition comprises the epoxy cross-linking agent and a cross-linking framework material, the epoxide cross-linking agent can form an ether bond with the cross-linking framework material; the epoxide cross-linking agent is glyceryl ether, and the molecule of the epoxide cross-linking agent contains two or more epoxy groups; the cross-linked framework material contains carboxyl and comprises one or two of polyacrylic acid and sodium carboxymethyl cellulose; the invention also comprises a preparation method of the gel plaster composition based on the epoxy cross-linking agent. The gel plaster composition disclosed by the invention adopts the epoxide cross-linking agent, and the required curing time is shortened to be within 1 / 5 of that of a metal ion cross-linking agent under the condition of the same dosage; the adhesive is a semi-solid after conventional curing, has good adhesion and stable physical properties, and in a stability test of 6-month acceleration and 24-month long term, the adhesive force and the release curve are basically unchanged.

The invention discloses an adhesion-drug release collaborative design system and method of adhesion type hydrogel, which are applied to the field of biomedical materials. A gradient cross-linking density and dynamic dual-network synergistic adhesion mechanism, a pH responsive nanopore channel of a drug sustained-release layer and a molecularly imprinted chain segment synergistic controlled-release mechanism, and a micro-breathable structure of a bionic cuticle barrier membrane and a zwitter-ion anti-adhesion surface synergistic protection mechanism are constructed; collaborative optimization of triple properties of adhesion self-enhancement in a wet environment, intelligent drug release and low skin irritation is realized; the method does not depend on traditional single function layer stacking or static parameter regulation and control, and starts from three dimensions of material microstructure design, interface coupling relation construction and dynamic response mechanism implantation to establish a set of multi-level collaborative design process capable of being implemented in an engineering mode. The finally formed hydrogel application product can maintain stable adhesive force in a complex physiological environment, at the same time releases treatment components as required, and reduces interference to a skin barrier function to the maximum extent.

The invention provides a method for preparing a flexible micro-nano device based on a carbon film, and belongs to the field of micro-nano device manufacturing. The invention provides a preparation method of a carbon film for preparing a flexible electrochemical sensor, which comprises the following steps: coating a first substrate with slurry containing graphene oxide and a polymer, and then carrying out carbonization reaction to form a graphite-like carbon film. The graphene oxide and the polymer are carbonized to form a continuous carbon film structure with high flexibility, excellent conductivity and good adhesive force, and the carbonized film can directly realize patterned microstructure processing on a wafer-level substrate, has good structural uniformity and repeatability, and is suitable for integrated manufacturing of large-scale flexible microelectrode arrays.

The application discloses a disease diagnosis system based on protocadherin 7 antibody and a diagnosis method thereof. The system comprises a microfluidic device and a microfluidic chip used in cooperation. The base surface of the microfluidic chip is coated with an alpha coating and a beta coating in sequence, wherein the alpha coating is one or more polypeptides, and the beta coating is a protocadherin 7 antigen solution. A detection cell monolayer is formed on the surface of the beta coating, and cells in a sample to be detected adhere to the surface. After incubation and washing, the cells are subjected to adhesion force detection by the microfluidic device. The adhesion force performance of the cells is statistically analyzed, and the sample is further subjected to disease diagnosis. The system further comprises a detection unit and a control unit, which are used for statistically analyzing the cell detachment and cooperatively detecting. The diagnosis method can be applied to the diagnosis and analysis of multiple diseases, especially the disease monitoring based on the change of cell adhesion force.

The invention belongs to the technical field of flexible electronic equipment, and particularly discloses a self-repairing hydrogel pressure sensor and a preparation method thereof, and the preparation method comprises the steps: preparing self-repairing hydrogel containing boric acid ester bonds; the self-repairing hydrogel is injected into the two molds to be frozen and cured, and two interface transition layers are obtained; uniformly coating the surface of one side of one interface transition layer with carbon black to prepare a conductive layer; laying silver nanowires on the surface of one side of the other interface transition layer and then folding to obtain a capacitor layer with the silver nanowires in the middle; and arranging the conductive layer and the capacitor layer in a laminated manner to obtain the self-repairing hydrogel pressure sensor. The self-repairing hydrogel pressure sensor has high adhesive force and super stretchability, interface stripping can be avoided, meanwhile, the detection range can reach 70 kPa, the whole range of human physiological activities can be covered, the response time is smaller than or equal to 30 ms, and the dynamic motion monitoring requirement can be met.

The invention relates to the technical field of coating, and discloses a high-adhesion plastic reflector and a preparation method thereof. The high-adhesion plastic reflecting mirror comprises a plastic substrate, and a TiAlN bonding layer, a Ti seed crystal layer and an Al reflecting layer which are sequentially deposited on the surface of the plastic substrate, c-N bonds, (C-O)-(Ti, Al, N) bonds and C-Ti and C-Al bonds are arranged between the TiAlN bonding layer and the plastic substrate, then, the chemical compatibility between TiAlN and the Ti seed crystal layer is high, Ti atoms can be slightly diffused into the TiAlN bonding layer, N atoms can also be slightly diffused into the Ti seed crystal layer, a thin and compact Ti-N reaction transition layer and a Ti-Ti metal bonding layer are formed, the adhesive force of the Ti layer can be greatly improved, and finally, the bonding strength of the Ti layer is improved. And the Al reflecting layer and the Ti seed crystal layer are tightly connected through a metal bond Ti-Al, so that strong adhesive force is obtained. According to the method, TiAlN, Ti and Al are sequentially deposited on the surface of the plastic substrate, the TiAlN located on the bottom layer can play a role of a bonding layer, and the TiAlN and the plastic surface can form a complex chemical bonding structure, so that the bonding force is improved.