238results about How to "Increase stress" patented technology

The invention relates to the technical field of polymer gels, and provides a multi-crosslinking composite gel and a preparation method and application thereof, the preparation method comprises the following steps: fully dissolving an activator in a buffer solution, and adjusting the pH value of the solution to 5.0-6.0 to obtain an activated solution; sequentially adding recombinant III-type humanized collagen, polydeoxyribonucleotide and chitosan into the activated solution, and uniformly dispersing to obtain a cross-linked precursor solution; adding a cross-linking agent into the cross-linking precursor solution, reacting for a period of time to obtain a cross-linking gel intermediate, and purifying to obtain the multi-cross-linking composite gel; the invention also provides the multi-crosslinking composite gel prepared by the preparation method, and application of the multi-crosslinking composite gel in the fields of beauty and plastic surgery. The material has biodegradability and good antibacterial performance, and can ensure slow release of the material and good filling effect and anti-enzymolysis effect at the same time.

The invention relates to the technical field of thermal printing head manufacturing, in particular to an energy-impact-resistant heating substrate for a thermal printing head and a preparation method of the energy-impact-resistant heating substrate, and the energy-impact-resistant heating substrate is high-temperature-resistant and capable of reducing adverse effects of thermal stress and is provided with an insulating substrate, a ground coat layer is arranged on the surface of the insulating substrate, and a heating resistor and an electrode wire are arranged on the ground coat layer. A protective layer covers the upper surfaces of the heating resistor body and part of the electrode lead, and the heating resistor body is characterized in that the heating resistor body is an energy-impact-resistant heating resistor body, the heating resistor body is made of a mixture of hafnium tantalum Hf / Ta alloy and SiC, the mass ratio of Hf to Ta in the hafnium tantalum alloy is (1-2): (8-9), the hafnium tantalum alloy accounts for 30-70% of the total mass of the heating resistor body, and the Hf / Ta alloy accounts for 30-70% of the total mass of the heating resistor body. The thickness of the heating resistor body is 10-500 nm, and the resistivity of the heating resistor body is 500-4000 E-8 omega.m.

The present invention relates to a weather-resistant and anti-aging polyethylene pipeline and a preparation method thereof, and belongs to the technical field of polymer materials. The pipeline adopts high-density polyethylene resin, linear low-density polyethylene resin, polyimide resin powder, nano silicon dioxide, nano hexagonal boron nitride, polybenzimidazole fiber, carnosic acid, zinc glycyrrhetinate, antioxidant 1010, hindered amine light stabilizer, polydimethylsiloxane titanate cross-linked polymer, 3-methacryloxypropyl triethoxysilane as raw materials; wherein, polyimide resin powder, carnosic acid and zinc glycyrrhetinate are uniformly mixed, and then modified at 300°C to 350°C for 30min to 60min to obtain a modified product, which can better improve the weather resistance and aging resistance of the pipeline. Each component is compatible with each other, and a special modified preparation method is adopted to better play the synergistic effect of the components, and greatly improve the weather resistance and aging resistance of the polyethylene pipeline.

The invention relates to a low-temperature liquid medium storage container and a construction and arrangement method of a metal film on the inner wall of the low-temperature liquid medium storage container, and belongs to the technical field of low-temperature liquid medium storage. The structure of the metal film comprises a top surface film, a right side surface film, a bottom surface film, a left side surface film, four transition surface films, a front surface film and a back surface film which are respectively arranged on the top surface, the right side surface, the bottom surface, the left side surface, four transition surfaces, the front surface and the back surface of the annular side surface of the low-temperature liquid medium storage container, the top surface film, the right side surface film, the bottom surface film and the left side surface film are respectively connected with the four transition surface films to form an annular side surface film; and the front film and the back film are connected through the annular side film to form a totally-closed three-dimensional film.

The invention discloses a deep hole blasting method for a strip mine step, relates to the technical field of blasting engineering, and aims to solve the problems that an existing strip mine step blasting method is easy to cause excessive large blocks on a slope surface and on the front section of the step, so that the excavation difficulty and the transportation potential safety hazard are increased. The method comprises the steps that an inclined first main blast hole and a vertical second main blast hole are drilled in the end, close to the slope surface, of a step to be blasted; a first auxiliary hole crossed with the first main blast hole is drilled in the slope surface, and a second auxiliary hole is formed beside the first main blast hole of the step; charging each blast hole with explosives; all the blast holes are connected into a detonating network through detonating lines; detonating through an exploder; wherein the first main blast hole and the second main blast hole can be distributed in a quincunx shape, the second main blast hole is vertical, and each main blast hole comprises a filling section and a charging section. According to the method, the auxiliary holes are formed to solve the problem of insufficient explosion stress of the slope and the step front section, and the explosion effect is improved.

The invention discloses an asymmetric U-shaped optical fiber taper sensing probe, a preparation method thereof and a sensor, and the asymmetric U-shaped optical fiber taper sensing probe comprises an asymmetric U-shaped optical fiber taper and a PDMS cladding for packaging the asymmetric U-shaped optical fiber taper; wherein the asymmetric U-shaped optical fiber taper comprises two taper transition areas and an asymmetric U-shaped taper waist area located between the two taper transition areas. The asymmetric U-shaped optical fiber taper sensing probe has the advantages of being thin in waist diameter and good in stability, has good stress and temperature response characteristics when being used for a sensor, and has important application prospects in the fields of safety monitoring, aerospace, medical treatment and the like.

The invention provides a floating radio frequency connector and an elastic body thereof, and belongs to the technical field of coaxial connectors. The floating radio frequency connector comprises a fixed outer conductor, a floating outer conductor, a floating insulator and a floating inner conductor, the floating inner conductor comprises a contact body and an elastic body, the contact body is fixedly installed in the floating insulator, the elastic body comprises a welding foot part and a deformation part, at least part of the deformation part is of a spiral structure, and the welding foot part is located at one axial end of the deformation part. The contact body is located at the end, axially away from the welding foot part, of the deformation part, and the contact body and the elastic body are of a split structure or an integrated structure. The elastic body of the floating radio frequency connector comprises the elastic body. According to the invention, the deformation part of the floating inner conductor is designed into a spiral structure, so that the elastic deformation capability of the deformation part in each direction is enhanced, and the problems of fatigue fracture and connection failure of a welding pin and a substrate are avoided.

The invention relates to the technical field of additive manufacturing, and discloses a 3D printing continuous fiber reinforced composite material path planning method based on the absolute maximum principal stress direction, and the method comprises the steps: building a three-dimensional model of a to-be-formed structural member, carrying out the slicing processing of the three-dimensional model, and obtaining a two-dimensional model of the to-be-formed structural member and the geometric characteristics of the two-dimensional model; material parameters and load constraints are set for a to-be-formed structural part needing additive manufacturing according to the requirements of forming materials and structural working conditions, finite element simulation is carried out, and a finite element simulation calculation result of a unit is exported; on the basis of a finite element simulation calculation result, an original contour line based on the stress direction is obtained through calculation; and on the basis of the calculated contour line in the stress direction, the additive manufacturing path of the to-be-formed structural part is obtained. The effect of improving the mechanical property of the continuous fiber composite material structure is achieved, and the mechanical property of a composite material component is improved on the premise of the same fiber content.

The invention relates to the technical field of metal heat treatment, in particular to a quenching process for improving the surface quality of a plate spring and reducing oxidation and decarburization, which comprises the following steps: putting the plate spring into a heating furnace, accelerating heating to 900-100 DEG C, and keeping the temperature for 30-35 minutes; the heated plate spring is placed in a quenching machine to be clamped and quenched; the tempering temperature is selected according to the hardness value required by the plate spring, and a continuous or periodic operation tempering furnace is adopted for tempering treatment; and the plate spring is relaxed, loaded, heated and subjected to heat preservation. By accurately controlling the heating temperature and time and combining the intelligent temperature control system to optimize the heating process, it is ensured that the plate spring is evenly heated within the optimal temperature range. In this way, the surface quality of the plate spring is improved, the performance difference caused by uneven heating is reduced, the oxidation and decarbonization phenomena are effectively reduced, the service life of the plate spring is prolonged, and the overall performance of the plate spring is improved.

The utility model provides a coating gasket assembly and a coating device.The coating gasket assembly comprises a first gasket and a second gasket, the first gasket comprises a first main body, the first main body is provided with a first main flow channel and a first auxiliary flow channel, and the first main flow channel penetrates through the first main body at the first main discharging end; the first auxiliary runner penetrates through the first main body at the first auxiliary discharging end; the second gasket comprises a second main body, a second runner is arranged on the second main body, and the second runner penetrates through the second main body at the second discharging end; in the first direction, the interval between the first main discharging end and the first auxiliary discharging end is L1, the length of the first auxiliary discharging end is L2, the length of the first main discharging end is L3, the length of the second discharging end is L4, L3 is smaller than L4, and L4 is smaller than L1 + L2 + L3. The first gasket and the second gasket of the coating gasket assembly are matched for use, so that the stress of the negative pole piece can be improved during coating, and the use reliability of the battery monomer is improved. And moreover, the coated insulating material can provide insulation, is not easy to damage, and is small in coating amount.

The invention provides a through hole microneedle and a preparation method thereof, and the method comprises the following steps: providing a silicon wafer, and sequentially forming a silicon nitride layer and a silicon oxide layer on the front surface and the back surface of the silicon wafer; forming a first etching mask on the front surface of the silicon wafer by utilizing photoetching and etching processes, and carrying out first deep silicon etching to form a semi-through deep hole; forming a second etching mask on the back surface of the silicon wafer by utilizing photoetching and etching processes, and carrying out secondary deep silicon etching to form a through deep hole to obtain a pinhole structure; removing the silicon oxide layers on the front surface and the back surface of the silicon wafer; forming a silicon oxide layer on the inner wall of the deep hole by adopting a thermal oxidation process; forming silicon nitride layers on the front surface and the back surface of the silicon wafer and the inner wall of the deep hole; removing all the silicon nitride layers on the front surface of the silicon wafer; etching the silicon wafer by using an anisotropic wet method to form a needle body structure; and removing the residual silicon nitride layer and the residual silicon oxide layer.

The invention belongs to the technical field of alloys, and particularly relates to a rolled-state tough titanium alloy and a preparation method thereof.The rolled-state tough titanium alloy is obtained by smelting sponge titanium, aluminum particles and a titanium-molybdenum intermediate alloy, then heating the smelted sponge titanium, aluminum particles and the titanium-molybdenum intermediate alloy and then adopting a hot rolling mode. The rolled-state tough titanium alloy obtained through the method is fine in grain and uniform in structure, all components are evenly distributed, the technical defects of as-cast-state Ti-6Al-xMo alloy are overcome, and the mechanical property is effectively improved.

The invention discloses an FRP thin-walled pole and a manufacturing method thereof. The FRP thin-walled pole comprises a pole body. The pole body is in the shape of a truncated cone or a regular prism that is gradually thickened from top to bottom and hollow inside. The wall thickness of the pole body gradually increases from top to bottom. The pole body is formed by winding multiple layers of FRP material. A top end cap of the pole body is arranged. The FRP thin-walled pole is prepared by a winding process. The pole is designed to be a hollow thin-walled structure with a wall thickness of 2-15 mm. The pole has simple stress distribution, small internal stress, high strength, an integrated structure and light weight. The pole has a simple construction process, is not easy to rust, has a long service life, and meets various requirements for power transmission.

The invention provides a semiconductor structure and a manufacturing method thereof. The manufacturing method of the semiconductor structure comprises the steps that a substrate is provided, the substrate comprises a first area and a second area, and a dielectric layer is formed on the substrate; executing an anisotropic first dry etching process, etching the dielectric layer and the substrate and stopping in the substrate, and forming a plurality of through holes in the first region; and executing an anisotropic second dry etching process, etching the dielectric layer and the substrate in the second region to form a contact hole, and simultaneously etching the dielectric layer and the substrate on the side edge of the through hole to expand the through hole to form a mark groove. Therefore, when the contact hole and the mark groove are etched at the same time, the diffusion limiting effect generated when the mark groove is etched can be effectively inhibited, the boundary definition of the mark groove is improved, and the precision of an overlay precision measurement value is improved. The semiconductor structure is manufactured by using the manufacturing method of the semiconductor structure provided by the invention.

The invention discloses a friction catalytic fabric loaded with a polytetrafluoroethylene coating and application thereof. The friction catalysis fabric loaded with the polytetrafluoroethylene (PTFE) coating comprises the PTFE coating and a porous fabric layer, the mass percent of the PTFE coating is 0.2%-1.1%, and the balance is the porous fabric layer; and the porous fabric layer is made of natural fiber fabrics or synthetic fiber fabrics such as cotton, hemp and terylene. The PTFE spraying agent is sprayed on the surface of the fabric, the original macroporous structure of the fabric is reserved, meanwhile, the PTFE spraying agent is firmly adhered to the fabric, the stress amplification effect of the fabric and the friction catalysis performance of PTFE are combined, the stress borne by the PTFE on the surface of the fabric in the friction process can be increased, and then the friction catalysis effect is improved. The friction catalysis fabric loaded with the PTFE coating has the advantages of high chemical stability, high friction efficiency improvement performance and the like; the catalyst is used for catalytic degradation of dyes and has a high degradation rate (gt; 90%), has the advantages of low cost, recoverability, environmental friendliness and the like, and is expected to be practically applied to degradation of organic pollutants in wastewater in the future.

The invention relates to a high-thermal-conductivity ceramic-based composite material and a preparation method thereof. The method comprises the following steps: preparing a carbon nanotube fiber preform; preparing a pyrolytic carbon interface layer on the fiber surface of the carbon nanotube fiber preform through a CVD method to obtain a carbon nanotube fiber preform with the pyrolytic carbon interface layer; uniformly dispersing boron nitride in the SiBCN precursor solution through sanding and high-pressure homogeneous dispersion technologies to obtain a BN / SiBCN precursor solution; and reacting the BN / SiBCN precursor solution with the carbon nanotube fiber preform with the pyrolytic carbon interface layer through a PIP process to prepare the ceramic-based composite material with high thermal conductivity. According to the method disclosed by the invention, the prefabricated body is obtained by weaving the carbon nanotube fibers, the high flexibility and high thermal conductivity of the carbon nanotube fibers are fully exerted, and BN is uniformly introduced into a SiBCN ceramic matrix as a high-thermal-conductivity phase through specific sanding and high-pressure homogeneous dispersion technologies, so that the thermal conductivity of the composite material is further improved.

The invention relates to an integrally-formed hollow-structure Pick racket and a preparation method thereof, and belongs to the technical field of Pick rackets. The hollow cavity shell is filled with the foam core layer, an opening is formed in the hollow cavity shell, and the foam core layer is obtained by conducting heat treatment foaming on a foaming raw material; the method further comprises the following steps that an integrally-formed hollow cavity shell with an opening is obtained through a blow molding technology; the hollow cavity shell is filled with foaming raw materials; the filled hollow cavity shell is subjected to heat treatment, so that the foaming raw materials are foamed, expanded and fused in the shell, and a foam core layer tightly combined with the shell is formed; according to the Pick racket, an adhesive interface existing in a traditional spliced racket is structurally and thoroughly eliminated, the risk of adhesive failure and layering after long-term use or damp is fundamentally avoided, the structural integrity of the racket is greatly improved, and the durable life of the racket is greatly prolonged.

The invention belongs to the field of chips, and particularly relates to a capacitor, a memory and a manufacturing method of the memory. The capacitor may include: a first electrode layer; a second electrode layer; the strontium titanate dielectric layer is formed between the first electrode layer and the second electrode layer, and in the direction from the center of the strontium titanate dielectric layer to the two opposite sides of the strontium titanate dielectric layer, the ratio of Sr / (Sr + Ti) in the strontium titanate dielectric layer is gradually decreased, and the ratio of Sr / (Sr + Ti) in the strontium titanate dielectric layer is gradually decreased. One side of the two opposite sides of the strontium titanate dielectric layer is close to the first electrode layer, and the other side of the strontium titanate dielectric layer is close to the second electrode layer. The capacitor of the scheme has the characteristics of high K value and low electric leakage.

The invention relates to the technical field of epoxy molding compounds, in particular to a low-stress low-hygroscopicity epoxy resin composition and application thereof. The low-stress low-hygroscopicity epoxy resin composition is prepared from the following components: epoxy resin, phenolic resin, inorganic filler, a coloring agent, a release agent, a curing accelerator, an ion trapping agent and a coupling agent, the epoxy resin is composed of o-cresol formaldehyde type epoxy resin and branched diphenyl sulfide epoxy resin, and the branched diphenyl sulfide epoxy resin is obtained by crosslinking 4, 4 '-dihydroxy diphenyl sulfide, inositol and epichlorohydrin; by adding the branched diphenyl sulfide epoxy resin into the epoxy resin composition, the mechanical property and the water absorption rate of the epoxy resin composition are remarkably improved, so that the stability and the reliability of a product are improved, and the epoxy resin composition can be used for packaging small and thin integrated circuits.

The utility model discloses a low-temperature anti-cracking novel flexible cable, which comprises at least three groups of conductors, each conductor comprises a plurality of twisted flexible round copper wires, the outer wall of each conductor is coated with an insulating layer, the conductors and the insulating layers form a cable core, the outer wall of the cable core is provided with a filling layer, the outer wall of the filling layer is lapped with a lapped layer in an overlapping manner, and the lapped layer is provided with an insulating layer. The outer wall of the wrapping layer is wrapped by a shielding layer formed by weaving copper wires, the outer wall of the shielding layer is wrapped by a lining layer, the outer wall of the lining layer is provided with an armor layer formed by tightly winding low-carbon steel wires, the outer wall of the armor layer is wrapped by a flame-retardant layer, and the outer wall of the flame-retardant layer is wrapped by an outer protective layer. Soft round copper wires are selected as conductors, so that the stability of electric energy transmission of the cable is improved while the overall flexibility of the cable is guaranteed; irradiation crosslinked polyethylene is adopted for insulation, so that the excellent electrical insulation performance, wear resistance, impact resistance, environmental stress cracking resistance and the like of crosslinked polyethylene are reserved, and the defect that during traditional silane steam crosslinking, steam immerses into the insulation to accelerate oxidation of a conductor is overcome.

The utility model provides a cross corrugation processing device for a transverse and longitudinal uniform-section corrugated plate, and particularly relates to the technical field of sealing and heat insulation, the cross corrugation processing device for the transverse and longitudinal uniform-section corrugated plate comprises a downward pressing assembly, an extrusion assembly and a supporting table, the extrusion assembly comprises a second driving mechanism and an extrusion base, extrusion force is applied downwards to the center in cooperation with the supporting bases on the left side and the right side, corrugated plates are extruded and machined to form the corrugated plates with the equal transverse section and the equal longitudinal section, the stress of the corrugated plates with the equal transverse section and the equal longitudinal section is more uniform, the thinning amount is smaller, and the production efficiency is improved. And stronger thermal stress can be borne.

The invention discloses a magnesium alloy plate corrugated lining plate rolling method based on micro-grain regulation and control, and belongs to the technical field of plate rolling forming. The invention aims to solve the problems of high anisotropy, poor calendaring formability and the like of an alloy plate due to strong basal texture of the alloy plate due to formation of corresponding stress on the alloy plate surface and over-small range of a rubbing and rolling area during traditional magnesium alloy rolling. According to the rolling method additionally provided with the corrugated lining plate, the deformation resistance of external friction to the plate in the rolling process is reduced, the loading mode is converted into overall application from local application, and the grain size and distribution of the magnesium alloy plate are effectively controlled by regulating and controlling the diameter and period of the corrugated surface of the corrugated lining plate. And the stress state of the plate is changed, and non-uniform deformation and local dynamic recrystallization nucleation are promoted, so that grains are refined, the basal texture is weakened, and the quality and the overall performance of the rolled plate are greatly improved. The method is suitable for short-process rolling forming of the magnesium alloy plate.

The invention relates to an optimal design method for a thread form angle of a planetary roller lead screw pair, and relates to the technical field of planetary roller lead screws, the method comprises the following steps: drawing standard thread form three-dimensional mathematical models of a lead screw, a roller and a nut in three-dimensional software according to thread parameters of the planetary roller lead screw pair; performing meshing analysis on the screw rod or the nut and partial thread section of the roller in a simulation module of the three-dimensional software; the thread angle value of the first lead screw or the second nut is adjusted based on the meshing condition of partial thread sections of the first lead screw and the first roller in the standard structure or the meshing condition of partial thread sections of the second nut and the second roller in the reverse structure. Therefore, on the premise that the first pin roller and the first lead screw or the second nut and the second pin roller do not interfere with meshing, the mutual meshing position is optimized. According to the design method, the thread angle value of the lead screw or the nut is optimized, the problem of poor thread meshing is solved, the bearing capacity and the transmission efficiency are improved, thread abrasion is reduced, and the service life is prolonged.

This utility model discloses a container, comprising a frame, a top panel, side panels, end panels, and door panels. At least one of the top panel, side panels, end panels, and door panels includes at least two layers: a steel plate and a composite material plate. The steel plate is fixedly connected to the frame. The composite material plate is located on at least one side of the steel plate facing inwards and outwards, and is fixedly connected to the steel plate. The composite material plate has the same shape as the steel plate to be integrally fitted with it, or the composite material plate is flat and partially fitted with the steel plate. According to this utility model, at least one of the top panel, side panels, end panels, and door panels is configured as a two- or multi-layer structure, wherein the side of the steel plate facing inwards and / or the side facing outwards is a composite material plate. This design allows the container to meet long-term requirements for wear resistance, acid and alkali resistance, salt spray resistance, and mildew resistance. Furthermore, container wall maintenance is relatively simple and inexpensive.

The present invention relates to the technical field of glassware annealing, and in particular to an annealing device for glassware production, comprising a conveyor frame, a hollow conveyor belt is provided inside the upper end of the conveyor frame, the inner wall of the hollow conveyor belt is a symmetrical structure with two conveyor rollers for friction transmission, a stepper motor is installed on the outer wall of the conveyor frame through a mounting seat, the output shaft of the stepper motor is coaxially connected to one of the conveyor rollers, and two gantry frames are fixedly connected on the conveyor frame in a symmetrical structure, an annealing assembly is provided inside the gantry frame, both sides of the top surface of the conveyor frame, and both ends of the conveyor frame, and a shunt block is provided on the annealing assembly, a vortex tube is installed on the shunt block, and the cold air outlet end of the vortex tube is connected to the inside of the shunt block. The height of the annealing assembly is adjusted according to actual needs to adapt to glassware of different specifications or batches, thereby improving the accuracy of annealing and ensuring that each glassware can be properly annealed, thereby improving the quality and stability of the product.

The present invention relates to a polycarbonate modified material for 3D printing with low printing temperature, a preparation method thereof and a printing filament. The polycarbonate modified material comprises 65 to 80 parts of polycarbonate, 20 to 35 parts of aliphatic aromatic copolyester and 1 to 5 parts of vinyl acetate copolymer, and a polycarbonate blended modified material is obtained by twin-screw melt extrusion, and then a filament that can be used for 3D printing is prepared by a single-screw extrusion wire drawing device. The print head temperature of the polycarbonate modified material can be reduced to 220°C, the base plate temperature can be reduced to 80°C, and the warping curvature can be controlled within 1.0m ‑1 Below, normal printing is not affected.

This invention discloses a silicon nitride grinding device, relating to the technical field of silicon nitride grinding devices. The device includes a support frame and a collection box. A conical cylinder is fixedly mounted on the upper surface of the support frame, and the collection box is disposed on the lower surface of the support frame. A feed trough is fixedly mounted on the upper surface of the conical cylinder, and a water storage tank is fixedly mounted on the circumferential surface of the conical cylinder. A water spray head is provided on the inner wall of the conical cylinder. A rotating shaft is rotatably mounted on the upper surface of the inner wall of the conical cylinder, and a grinding head is fixedly mounted on the lower surface of the rotating shaft. A grinding disc is fixedly mounted on the inner wall of the conical cylinder. A material unblocking device is also provided inside the conical cylinder. When the feed trough is blocked, it affects the grinding efficiency, potentially causing a decrease in output or production stoppage. Blockage causes material to accumulate in the feed trough, increasing the pressure and stress on the material. If this blockage persists for a long time, it may damage the feed trough.

The invention provides an epoxy modified cement-based material, the epoxy modified cement-based material comprises an organic phase structure and inorganic crystals, and the inorganic crystals are radially distributed on the surface of the organic phase structure; the organic phase structure is a spherical or sphere-like structure with the diameter of 3-15 microns; the inorganic crystal is of a needle-shaped, rod-shaped or sheet-shaped structure with the length being 0.3-3 microns and the diameter being 0.05-0.5 microns. The epoxy modified cement-based material disclosed by the invention shows good adhesion and dispersion resistance under water or in a humid environment, can realize rapid underwater construction, and keeps stable performance for a long time under harsh conditions such as a marine environment and a humid environment; the engineering requirements of multiple fields such as building structure repairing, underwater repairing, rapid first-aid repair, ocean protection and road and bridge engineering are met, and the integration of high strength, high toughness, strong interface bonding and long-acting durability is realized.

A substrate to be connected is prevented from being damaged. An electronic component (100) is provided with a substrate (1) to be connected and a flexible printed wiring board (3). The substrate (1) to be connected has a first base sheet (11), a circuit (13) formed on the first base sheet (11), a first terminal forming portion (E1) formed on at least one end of the first base sheet, and a plurality of first terminals (15) formed on the first terminal forming portion (E1) and connected to the circuit (13). The flexible printed wiring board (3) has a second base sheet (31), a second terminal forming portion (E2) formed on at least one end of the second base sheet, and a plurality of second terminals (33) formed on the second terminal forming portion (E2) and connected to the first terminals (15). A wide portion (31a) extending in an X direction, which is a direction in which the plurality of second terminals (33) are arranged, is formed on the second terminal forming end portion (E2). Dummy terminals (39, 39 ') are formed on at least one of the wide portion (31a) and a portion of the first base sheet (11) facing the wide portion (31a).

The present application relates to the technical field of high molecular antifogging coating, and particularly relates to a supermolecular coated shed film antifogging coating solution, a preparation method and application thereof, wherein acrylic acid, acrylamidoalkyl sulfonic acid, hydroxyalkyl acrylate and double-ene crosslinking monomer are used for tetra-copolymerization to construct a supermolecular matrix with carboxyl, sulfonic acid group, hydroxyl side group and crosslinking network, and a spandex antifogging agent is introduced in situ in the matrix, hydrogen bond and hydrophobic association synergistic effect between the side group functional groups and the spandex molecules are used to realize supermolecular coating, and then pH adjustment and functional additive compounding are performed to obtain the coating solution. The present application solves the problems of easy migration and precipitation of the traditional antifogging agent, coating brittleness, short effective period, and the obtained coating has comprehensive performances of long-acting antifogging, high light transmission, strong adhesion, flexible and bending-resistant, water-resistant and aging-resistant, and room temperature rapid curing, and is suitable for antifogging treatment of various agricultural shed films and greenhouse transparent materials.