95results about How to "Barrier effect" patented technology

The invention relates to a dynamic sole pressure test insole with a multilayer sensing core structure, which comprises an insole, a signal conditioning unit, a data acquisition unit and a signal display unit, wherein a sensing core structural film sensor unit is embedded into the insole; the sensing core structural film sensor unit is formed by vertically overlapping at least two layers of polyvinylidene fluoride films, and a hard synthetic material film is embedded between contact faces of the sensing core structural film sensor unit and the insole; and the sensing core structural film sensor unit in the insole is connected with the signal conditioning unit, the data acquisition unit and the signal display unit which are sequentially connected in series. The signal-to-noise ratio of a PVDF piezoelectric film sensor and the corresponding lag quality of the test insole on dynamic signals are improved by adopting the multilayer sensing core structure and the design of the spaced material films; and the test insole can be put into various daily worn shoes to perform test, and can provide the basis for biomechanical analysis of human gait and comfort evaluation of shoes.

Provided are a stacked electronic part that can sufficiently suppress plating deposition on the surface of a porous green body when a terminal electrode is formed on an external electrode, thereby enabling a decrease in the reliability of products to be prevented, and a method of manufacturing the stacked electronic part. The stacked electronic part 1 is a PTC thermistor having a stacked body 4 containing a porous green body 2 made of ceramics and having a plurality of vacancies and a plurality of internal electrodes 3 formed within the porous green body 2, and is provided with at least one unit structure 10 in which the porous green body 2 and the internal electrode 3 are stacked. External electrodes 5, 5 are connected to the internal electrode 2, and upon the external electrodes 5, 5 are formed terminal electrodes 7, 7 by plating. Resin is filled in the plurality of vacancies of the porous green body 2 at a filling ratio of not less than 60%.

Provided are a stacked electronic part that can sufficiently suppress plating deposition on the surface of a porous green body when a terminal electrode is formed on an external electrode, thereby enabling a decrease in the reliability of products to be prevented, and a method of manufacturing the stacked electronic part. The stacked electronic part 1 is a PTC thermistor having a stacked body 4 containing a porous green body 2 made of ceramics and having a plurality of vacancies and a plurality of internal electrodes 3 formed within the porous green body 2, and is provided with at least one unit structure 10 in which the porous green body 2 and the internal electrode 3 are stacked. External electrodes 5, 5 are connected to the internal electrode 2, and upon the external electrodes 5, 5 are formed terminal electrodes 7, 7 by plating. Resin is filled in the plurality of vacancies of the porous green body 2 at a filling ratio of not less than 60%.

The invention discloses a humidity resistance high oxygen barrier packaging film preparation method, comprising the following steps: coating a barrier coating fluid comprising 5-40% of acrylic homopolymer or copolymer, 0.1-5% of assistant, 0.5-15% of crosslinking agent and 40-94.4% of solvent on the substrate of polyester films of which corona value is 30-60 dynes, nylon films or polyolefin films by using a dry-lamination machine, a wet-lamination machine or an extrusion lamination machine, drying the substrate at 50-110 DEG C, solidifying the dried substrate at 20-150 DEG C and obtaining the humidity resistance high oxygen barrier packaging film. The humidity resistance high oxygen barrier packaging film prepared by the invention can always maintain excellent ability to barrier oxygen, carbon dioxide and nitrogen in high humidity; for instance, the typical oxygen permeance is 3cc / m2 / day in 80% humidity. The film has excellent mechanical properties, can be repeated bended and can not affect the barrier properties.

The invention discloses a beauveria bassiana microcapsule formulation which is prepared by taking suspension prepared from beauveria bassiana conidia, kaolin and water as a capsule core, taking sodium alginate as a capsule wall, dispersing in a dispersing agent of n-hexadecane, corn oil and lecithin with different proportions, crosslinking through calcium ions, and solidifying microcapsules to enveloped fine particles with partical diameter being smaller than 100 Mu m. In the germination process of the beauveria bassiana conidia, a germ tube can perforate through the envelop of the capsule wall. The microcapsule formulation is also added with a conidium germination nutrient solution which increases the germination percentage and the germination speed of the conidia. The beauveria bassiana microcapsule formulation can effectively prevent the influences bad environments such as external ultraviolet rays and drying from the conidia, achieves high germination percentage under the influences of the same temperature, humidity and ultraviolet rays, and has good control effect to agriculture and forestry pests; and meanwhile the beauveria bassiana microcapsule formulation has simple production process and is easy for mass production.

The invention provides a novel vibration reduction road structure and a construction method thereof. The vibration reduction road structure comprises a bituminous mixture pavement layer, prefabricated concrete road plates, a CA mortar layer, a waterproof layer and a roadbed or an underground space and other architectural structures from top to bottom. The construction method comprises the steps of roadbed constructing, waterproof layer laying, CA mortar layer paving, prefabricated concrete road plate assembling and connecting and bituminous mixture pavement layer paving from bottom to top in sequence. The vibration reduction road structure provided by the invention has the advantages that a 'dual vibration reduction' structural type (the first vibration reduction structural type body is the bituminous mixture pavement layer arranged on the surface, and the second vibration reduction structural type body is the CA mortar layer arranged under the road plates) is adopted, the better vibration reduction and isolation performance is displayed, and adjacent important buildings and other structures are protected from being disturbed by road vibration maximally; and in addition, the road structure further has good waterproofness and low-noise performance. By means of the advantages in all aspects, the road service life is remarkably prolonged advantageously.

The invention discloses an adhesive belt with an electromagnetic wave shielding function. The adhesive belt comprises a surface layer, a middle layer and a gluing layer, wherein the surface layer is a PVC film, and the middle layer is an electromagnetic wave shielding film which comprises the following main components by weight percent: 40%-50% of activated carbon particles, 15%-25% of nano-silver particles, 30%-40% of a synthetic resin and the balance of an additive; and the surface layer and the middle layer can be adhered and connected through hot-press treatment, and the gluing layer is coated on the other combining surface of the middle layer. The adhesive belt with the electromagnetic wave shielding function provided by the invention has the advantages that the adhesive belt is in a multi-layer composite structure design, the surface layer has the good waterproof and stain resistance properties, the middle surface has the unique electromagnetic wave shielding function and can effectively obstruct the damage of the electromagnetic wave on a human body and the influence of the electromagnetic wave on periphery electronic devices, and the adhesive property of the gluing layer is stable; and the bonding strength of each layer of the adhesive belt is high, the property of the adhesive belt is good, and the application range of the adhesive belt is effectively improved.

The invention discloses a screw sliding plunger type step temperature control melting electrostatic spinning device. The device comprises a melting heating unit, a screw transmission unit, a step temperature control unit and an electrostatic spinning unit, and is characterized in that the screw transmission unit applies pressure to the melting heating unit to extrude molten materials from a discharge port nozzle, the molten materials form spun fibers under the action of electric field force, the spun fibers are further stretched by the step temperature control unit, and are finally captured bya collecting rotation disc of the electrostatic spinning unit, and electrostatic spinning is completed. The electrostatic spinning device can realize step temperature control to obtain finer electrospun fibers, and has better application prospect in the field of melting electrostatic spinning.

The invention discloses a fan, which comprises a motor and an impeller, wherein the motor drives the impeller to rotate, and the motor comprises a base seat, a bearing, a stator, a rotor and a magnetic body. The central part of the base seat extends to form a bearing support; the bearing is arranged inside the bearing support; the stator is sleeved on the outer circumference of the bearing support; the rotor and the stator correspond to each other; a rotating shaft passes through the bearing; the magnetic body is arranged at the bottom of the bearing support, and is positioned close to one end of the rotating shaft.

The invention provides a polychlorinated biphenyl contaminated soil treatment method comprising the following step (1) of preparation of eluents: preparing the eluents according to the quality of soilto be remediated; the step (2) of chemical leaching treatment: excavating the soil to be remediated and conveying the soil into a mixer, and stirring the soil while spraying; the step (3) of microbial degradation: fully mixing and stirring indigenous microorganisms and biological promotors, and injecting the mixtures into the soil with a spraying or injection method; singly spraying or injectingthe biological promotors for the second time after 5-7 days, and spraying or injecting the biological promotors by half everyday in the following days and lasting for 25-30 days; the step (4) of bottom remediation and isolation: forming a solidified layer at the bottom of contaminated soil by mixing Fenton reagents, zero-valent iron and cement; and the step (5) of soil backfilling. According to the treatment method, by adopting the technological method of chemical leaching, microbial degradation and bottom isolation, the problem that the pollution cleanup is incomplete in the prior art is solved; the treatment method has the advantages of low treatment cost, high efficiency and no secondary pollution, and is widely applied for polychlorinated biphenyl pollution treatment cooperatively.

The invention discloses a coaxial cable. The coaxial cable comprises a conductive body, a foamed insulating layer, an outer conductor layer, a fiber sleeve and an insulating layer which are arranged from inside to outside in sequence, wherein the fiber sleeve is provided with a framework with frame holes; the framework is made from second fibers in a fusing manner; the framework is fixedly connected with the outer conductor layer and the insulating layer; first fibers are alternately inserted in the frame holes; and the first fibers are connected mutually to form a net shape. The coaxial cable provided by the invention adopts the framework structure made from the second fibers, and the fiber sleeve woven by the first fibers woven with metal wires, so that the coaxial cable is simple in structure, good in shock absorption effect, and relatively high in bending and stretching resistance; due to the fiber material, the metal wires can be woven conveniently, so that the coaxial cable protective layer has a relatively good shielding effect, the cost of the overall cable is relatively low, the weight of the cable is relatively low, and the cable obtains a higher economic effect; and due to the fiber material, the chemical performances of the coaxial cable protection layer can be expanded and improved conveniently.

The invention discloses a pellet type pantoprazole sodium enteric capsule and a preparation method thereof. The pellet type pantoprazole sodium enteric capsule is a sustained-release preparation composed of a capsule shell and uniformly mixed pantoprazole sodium pellets held in the capsule shell; the pantoprazole sodium pellet from inside to outside in turn comprises a blank pellet core, a main drug layer, an isolation layer and an enteric layer, wherein the weight of the main drug layer is 14-55% of that of the blank pellet core, the weight of the isolation layer is 9-10% of that of the total weight of the blank pellet core and the main drug layer, the weight of the enteric layer is 28-32% of that of the total weight of the blank pellet core, the main drug layer and the isolation layer; 40-60% of that of the pantoprazole sodium pellet is coated with a pigmented layer on the outside of the enteric layer; the weight of the pigmented layer is 0.5-1% of that of the total weight of the blank pellet core, the main drug layer, the isolation layer and the enteric layer; the diameter of the blank pellet core is 0.8-1.0 mm; the granularity of the pantoprazole sodium pellet is 14-20 mesh; each capsule contains 20-40 mg of the pantoprazole sodium. The pellet type pantoprazole sodium enteric capsule has the advantages of acidproof, rapid release and stable.

The invention provides a packaged perovskite solar cell and a packaging method. The solar cell comprises a transparent conductive substrate, a perovskite solar cell module, a packaging adhesive, a cover plate and a total electrode, wherein the perovskite solar cell module is located on the transparent conductive substrate; the packaging adhesive is arranged on the transparent conductive substrateand forms a packaging space to accommodate the perovskite solar cell module; the edge of the cover plate is connected with the top of the packaging adhesive in a sealing manner so as to enable the perovskite solar cell module to be sealed in the packaging space; the total electrode is arranged on the transparent conductive substrate and completely located outside the packaging space, and electronsare transmitted to the total electrode through the transparent conductive substrate. According to the invention, the total electrode is independently arranged outside the packaging adhesive, and thecharacteristic that the transparent conductive substrate can conduct electricity and transmit electrons is utilized, so that the problem that water and oxygen enter the packaging space through the gapdue to the contact between the packaging adhesive and an electrode leading-out part is avoided, and the transmission of the electrons is not influenced.

The invention relates to a method for determining the vibration influence of a body-side cavity stop block on a vehicular low-frequency structure. The method comprises the following steps that a modal test and a transfer function test are conducted on a white vehicle body provided with the stop block in a body-side cavity; the stop block of the white vehicle body in the body-side cavity is dismounted; the modal test and the transfer function test under the same conditions are conducted on the white vehicle body provided with no stop block; results of two times of tests are compared, and the vibration influence of the body-side cavity stop block on the vehicular low-frequency structure is determined. Compared with the prior art, the method has the advantages of being simple in operation, saving the cost and the like.

The invention discloses a pellet type omeprazole enteric capsule and a preparation method thereof. The pellet type omeprazole enteric capsule is a sustained-release preparation, and is composed of a capsule shell and evenly mixed omeprazole pellets received in the capsule shell; each omeprazole pellet is composed of a blank pill core, a main drug layer, an isolation layer and an enteric layer in order from inside to outside, wherein the weight of the main drug layer accounts for 15-60% of that of the blank pill core, the weight of the isolation layer accounts for 10% of the total weight of the blank pill core and the main drug layer, the weight of the enteric layer accounts for 28-32% of the total weight of the blank pill core, the main drug layer and the isolation layer; besides, the enteric layers of 40-60% of omeprazole pellets are further coated with pigment layers; the weight of the pigment layer accounts for 0.5-1% of the total weight of the blank pill core, the main drug layer, the isolation layer and the enteric layer; the diameters of the blank pill cores are 0.8-1.0mm; the granularity of the omeprazole pellets is 14-20 meshes; each capsule contains 15-30mg of omeprazole. The pellet type omeprazole enteric capsule has the advantages of good acid resistance, sufficient active ingredient release without delay, good stability and the like.

The invention discloses a high-barrier material for red wine BIB packaging. The high-barrier material is successively composed of a composite layer, a barrier layer and a polyethylene co-extrusion layer, wherein the polyethylene co-extrusion layer is coated with the barrier layer, and the composite layer and the barrier layer are glued together through compound rubber. The composite layer is a biaxially oriented nylon or biaxially oriented BOPP film. The barrier layer is a water resistant modified polyvinyl alcohol coating. The polyethylene co-extrusion layer is a five-filament polyethylene co-extrusion film. Through tests, the high-barrier film material has excellent barrier property and mechanical strength, is low-cost and can be widely used in packaging of liquid food.

The invention discloses a heat-sealable matte printed aluminized composite packaging film for cigarettes and a preparation method thereof. The composite packaging film comprises a printed matte film and an aluminized film which are laminated and processed by use of a binder or a hot melt adhesive, wherein the printed layer of the matte film can be laminated with the aluminized layer of the aluminized film to obtain the composite packaging film. The composite packaging film provided by the invention has the following advantages: a heat-sealable matte film is creatively proposed to be adopted asa printed packaging film; after inner printing of the inner surface of the matte film, the printed layer of the matte film is laminated with the surface of the aluminized layer of the aluminized film, so the problem of additional coating of a matting coating on the surface of a conventional cigarette packaging film is solved; meanwhile, the matted layer and the aluminized film have medium-and-low-temperature heat sealability, so a film can be packaged and bonded without the need of using a glue when a cigarette is subsequently packaged on a machine; and the composite packaging film provided by the invention realizes medium-and-low-temperature heat sealability and matte effects on the basis of guaranteeing conventional functions, effectively reduces energy consumption, is friendly to the environment, and has a matte metal texture.

The invention discloses a film coating process for automobile lamps. The proportion control of the mass fraction of polyethylene terephthalate and silicon dioxide particles can prepare a PET base film with high strength and high impact resistance, so as to meet the requirements of high haze. Requirements, the protective film is coated after the aluminum plating, and the SiOx protective film can effectively block the influence of air on the aluminum plating film, and has a good protective effect on the aluminum plating film, prolonging its service life, and the reflectivity of the protective film remains The coating process of automotive lamps has the advantages of long service life and high reflectivity of the film, and the market prospect is broad.

The invention relates to a cold accumulating transportation box, in particular to a box body structure capable of keeping the temperature of the inner part of the box body to be minus 60 DEG C or below. The box body structure comprises a box body, wherein a box cover is arranged on the box body; the box body adopts a four-layer structure sequentially comprising a first insulating plate, a first cold accumulating unit, a second insulating plate and a second cold accumulating unit; the top of the first insulating plate is movably connected with the box cover; sodium chloride salt eutectic is stuffed in the first cold accumulating unit; and lithium chloride salt eutectic is stuffed in the second cold accumulating unit. According to the cold accumulating transportation box disclosed by the invention, when own mass of the cold accumulating transportation box is maintained, the temperature of the inner part of the box body can be kept to be at minus 60 DEG C or below for a long time; and besides, the problem of refrigerated transport of articles which are temperature sensitive including frozen blood products and the like is solved at lower cost.

The invention provides calcitriol soft capsules with high bioavailability, high stability, convenience in administration, moisture absorption prevention, good sealing property and low price, which improves the bioavailability and the compliance of patients. In order to fulfill the aims, the calcitriol soft capsules and a preparation method thereof are finally obtained through a lot of experimental research; the calcitriol soft capsules comprise a soft capsule material and inclusion liquor, wherein the soft capsule material comprises gelatin, glycerol and water in a weight ratio of 10:3.5:9; and the inclusion liquor comprises calcitriol, co-emulsifier, oil phase and emulsifier in a weight ratio of (1-4): (30,000-35,000): (20,000-25,000): (80,000-100,000). The weight ratio of the soft capsule material to the inclusion liquor is 5:4.

The invention discloses a TGF-Beta3 (Transforming Growth Factor Beta3) loaded slow-release tissue engineering synovial sheath. The synovial sheath is characterized by consisting of a dense layer (1) and a porous layer (2), wherein the porous layer (2) is mesh-shaped, and chitosan microspheres containing TGF-Beta3 and synovial cells are loaded into the porous layer (2). According to the synovial sheath, the artificial synovialization of chitosan scaffolds is realized. The TGF-Beta3 loaded slow-release tissue engineering synovial sheath has the advantages that the slow release of the TGF-Beta3 can be realized, the cicatrization resisting effect of the TGF-Beta3 is exerted, the TGF-Beta3 with biological activity is released in a slow and sustained manner, and active substances, such as hyaluronic acid and the like, secreted by synovial survival cells can be utilized so as to be expected to play a role in adhesion prevention after tendon injury repair. The synovial sheath can serve as an ideal material for preventing adhesion after tendon injury repair, and has good preventing and treating effects when the synovial sheath is applied to tendon adhesion in orthopedics.

The invention relates to a mechanical pile forming device for a base-expanded poured foundation pile and a pile forming method thereof. The mechanical pile forming device for the base-expanded pouredfoundation pile comprises a powered rotating head providing power for a rotary shaft, a rotating transmission shaft connected below the powered rotating head, a steel pipe protective casing installedon the outer side of the rotating transmission shaft in a sleeving manner and a bottom-expanding drill bit connected to an end of the rotating transmission shaft. The mechanical pile forming method comprises the steps that hole drilling operation of a pile body A of the foundation pile is conducted; the bottom-expanding drill bit goes deep into the hole bottom along the interior of the steel pipeprotective casing, and hole expanding operation is conducted; a pre-lashed pile body steel bar reinforcement cage is fed from top to bottom along the interior of the steel pipe protective casing; foundation pile concrete is poured, and meanwhile, the steel pipe protective casing is elevated; and base-expanded poured foundation pile construction is conducted, and the base-expanded end B of the base-expanded poured foundation pile is formed below the pile body A of the foundation pile. The mechanical pile forming device for the base-expanded poured foundation pile has the advantages that the influence of underground water on pile forming is obstructed, the pile forming quality of the base-expanded poured foundation pile is improved, the foundation construction cost of projects is lowered, and construction efficiency is high.

The invention discloses a transparent ultrahigh-barrier composite film and a preparation method thereof. A base material layer is prepared by combining a multi-layer co-extrusion process with corona treatment, and then evaporation enhanced coating, inorganic oxide evaporation and surface coating of a protective layer are carried out, so that the ultrahigh-barrier composite film is prepared. The ultrahigh-barrier composite film is sequentially provided with a coating protection layer, an inorganic oxide evaporation barrier layer, an evaporation enhancement layer and a base material layer; wherein the base material layer is a multi-layer co-extrusion biaxially oriented polyamide film and is sequentially provided with an upper surface layer, a first secondary surface layer, a middle layer, asecond secondary surface layer and a lower surface layer; the upper surface layer is a biaxially oriented polyamide film layer subjected to corona treatment and is compounded with the evaporation enhancement layer; the middle layer is an EVOH layer; and the lower surface layer is an anti-blocking smooth layer. The ultrahigh-barrier composite film is transparent, can be boiled in water and heated by microwaves, has excellent barrier property and excellent odor barrier property on oxygen and water vapor, and is particularly suitable for various high-grade packaging fields.

The invention belongs to the technical field of household oxygen inhalers, and in particular relates to a home medical oxygen inhaler with oxygen separation function, including a casing, an air pump and an oxygen-enriched separation membrane. The side of the casing is shaped like a volute, and the The air pump is a scroll compressor, which is arranged horizontally on the inner wall of the casing side, and the oxygen-enriched separation membrane is arranged in a fixed frame, and the fixed frame is fixed on the inner wall at one end of the casing circumferential surface through a mounting slot, and Perpendicular to the horizontal plane, the upper and lower parts of the circumferential surface of the casing relative to the other end of the oxygen-enriched separation membrane are respectively provided with air inlets, and the gas outlet is arranged on the outer wall of the circumferential surface of the casing. The present invention has the advantages of simple operation and low cost. Oxygen production is stable, and as a home medical device, it is suitable for people who need oxygen inhalation in ordinary families.

The invention relates to an ultrasonic vibration auxiliary magnetic composite fluid polishing device. The polishing device comprises an electric spindle and a polishing head, the polishing head is composed of a piezoelectric ceramic ring, a permanent magnet and a polishing wheel, the polishing wheel is composed of a functional layer and a connecting layer, the functional layer and the connecting layer are welded and fixed, and the polishing wheel is fixedly connected with the electric spindle through the connecting layer; the permanent magnet is wrapped in an insulating coating and sintered in the piezoelectric ceramic ring, so that the magnetic composite fluid is adsorbed on the outer surface of the piezoelectric ceramic ring under the action of a magnetic field of the permanent magnet and is used for polishing an original grating, and the piezoelectric ceramic ring is fixedly connected with the polishing wheel through resin silica gel; an electric brush is arranged in the electric spindle, generated alternating current is connected with the piezoelectric ceramic ring through a circuit line channel arranged in the functional layer to form a loop, and thus ultrasonic vibration is generated. The polishing device is simple in structure, and the material removal rate and the polishing quality of the magnetic composite fluid on the surfaces of various workpieces are improved.

The invention relates to the technical field of municipal pipe networks, in particular to a sunken-tube-method construction technology for laying a main sewage intercepting pipe. The technology includes the steps of measuring and setting out, tube groove forming, groove bottom leveling, laying of precast reinforced concrete bottom plate, pipeline sinking, pressing of precast concrete blocks, manufacturing of an inspection well and an intercepting well as well as filling the area around the pipeline with fine-aggregate concrete. According to the technology, construction operation is performed in a water environment, the influence of the water permeability of the river bed is avoided, and the main sewage intercepting pipe can be laid smoothly.

The invention discloses modified glass bead thermal insulation mortar and a preparation method thereof and belongs to the technical field of building materials. The mortar is prepared from 30-50 partsof portland cement, 5-10 parts of quartz sand, 10-15 parts of kaolin, 20-30 parts of hollow glass beads, 2-3 parts of inorganic mineral powder, 2-3 parts of styrene acrylic emulsion, 4-6 parts of hydroxypropyl methyl cellulose, 3-5 parts of polypropylene short fibers, 3-5 parts of polyvinyl alcohol and 3-5 parts of mono potassium phosphate. According to the modified glass bead thermal insulationmortar, after the glass beads are modified, film with high adhesive strength is formed on the surfaces of the hollow glass beads and has the effects of blocking the hollow glass beads and sealing theincomplete glass beads, the smashing rate of the glass beads is lowered, and accordingly the water absorption rate is lowered. Meanwhile, the polymer film on the surfaces of the hollow glass beads hascertain strength and toughness and has the effect of strengthening the hollow glass beads.

The invention discloses an LED lamp, comprising a shell, a lens, an illumination part, a lamp holder, a power source, a heat radiator and a heat insulation device, wherein a cavity is formed by enclosure of the inner wall of the shell, the lens and the lamp holder are respectively arranged on two ends of the cavity, the heat radiator is arranged outside the shell, the heat insulation device is arranged in the cavity and divides the cavity into a first chamber and a second chamber, the illumination part is arranged in the first chamber, and the power source is arranged in the second chamber. In a specific embodiment mode of the invention, because the heat insulation device is arranged in the cavity formed in the shell to divide the cavity into the first chamber and the second chamber and the illumination part and the power source are respectively arranged in the first chamber and the second chamber, the influence of the heat generated by the illumination part on the power source is blocked, and thus, the power source is prevented from being radiated by the heat of the illumination part and the working stability of the power source is improved.

The invention relates to the technical field of illumination and display, and discloses a light-emitting panel, a preparation method thereof and a light-emitting device. The light-emitting panel is provided with a light-emitting area and an isolation area adjacent to the light-emitting area. The light-emitting panel comprises a substrate and a barrier structure. The barrier structure is arranged on one side of the substrate and located in the isolation region and comprises a first isolation pattern, a second isolation pattern, a third isolation pattern and a fourth isolation pattern which are sequentially stacked, and the first isolation pattern is closer to the substrate than the fourth isolation pattern; the orthographic projection of the first isolation pattern on the substrate is located in the orthographic projection of the second isolation pattern on the substrate, and the orthographic projection of the third isolation pattern on the substrate is located in the orthographic projection of the fourth isolation pattern on the substrate. The orthographic projection of the third isolation pattern on the substrate is located in the orthographic projection of the second isolation pattern on the substrate. The blocking structure of the light-emitting panel forms a double-layer I-shaped structure, and the blocking effect is good.

The invention provides a sensor LGA (Land Grid Array) packaging structure which comprises a shell and a substrate. The packaging structure is used for packaging an energy converter chip; the sensor LGA packaging structure also comprises a gasket; the gasket is used for adhering to the energy converter chip; a through hole is formed in the gasket in a way of penetrating through the upper surface and the lower surface; for the lower surface, connected with the substrate, of the bottom part of the gasket, due to the through hole, other areas of the gasket is adhered to the substrate through a glue. During the mass production of the packaging structure, the stress of the substrate can be optimized through the method, and the drifting problem of an electric signal output by the energy converterchip caused by the stress is solved.