618 results about "Surface film" patented technology

The invention belongs to the technical field of back contact cells, and particularly relates to a back contact cell manufacturing method for improving passivation performance and a back contact cell thereof, and the method comprises the steps: S2, depositing a first semiconductor layer and a phosphorosilicate glass layer on the back surface of a silicon wafer, and reserving the first semiconductor layer and the phosphorosilicate glass layer as a first mask layer; s3, performing texturing cleaning on the front surface of the silicon wafer; the first mask layer is removed in the final cleaning process after texturing; s4, forming a passivation layer and an anti-reflection layer on the front surface of the silicon wafer; s5, coating the back surface to form a second mask layer; s6, forming a second semiconductor opening region; and S7, texturing or polishing the second semiconductor opening area on the back surface, and cleaning by using an HF solution with the mass concentration of 0.5%-5% to remove the second mask layer and the winding plating layer generated in the front surface coating process in the S4. The back surface winding plating layer does not need to be removed, damage to the first semiconductor layer and the front surface film layer can be avoided, the overall passivation level can be improved, and therefore the battery efficiency is improved.

The utility model provides an automatic telescopic greenhouse shed which comprises a shed frame and a thin film, the thin film is located outside the whole shed frame, the shed frame comprises a barrel-shaped steel frame set, a steel frame shed rod and an anti-falling rail, and a lateral film rolling set is arranged on the barrel-shaped steel frame set; the steel frame shed rods are located on the upper portion of the barrel-shaped steel frame set, and a top film rolling set is arranged on the multiple steel frame shed rods. The anti-falling rail is fixed to the top of the barrel-shaped steel frame set and used for guiding the steel frame shed rods to slide and stretch out and draw back; a telescopic matching group is arranged among the plurality of steel frame shed rods, and the steel frame shed rod at one end is fixed on the anti-falling track; the greenhouse has the advantages that the internal temperature can be changed by changing the structural change of the greenhouse body, the greenhouse can be applied to more greenhouse use scenes with different temperature control requirements, the use of a temperature control device is reduced, and the temperature control efficiency is improved. And the method has extremely high economical efficiency.

The invention discloses a method for forming a shallow trench isolation structure, and belongs to the technical field of semiconductors, the method for forming the shallow trench isolation structure comprises the steps of forming a first stop layer on a substrate, etching the first stop layer and a part of the substrate, and forming a trench; an insulating material is deposited in the groove and on the first stop layer, a second stop layer and a sacrificial layer are sequentially deposited on the insulating material, and the insulating material, the second stop layer and the sacrificial layer are provided with recesses in the groove; the sacrificial layer is ground and thinned until the second stop layer is exposed, and part of the sacrificial layer is reserved at the concave position of the second stop layer; and synchronously etching the second stop layer and the sacrificial layer until the second stop layer is completely removed. A stop layer and a sacrificial layer are deposited on an unground insulating material, the height difference of a wafer surface film layer is preliminarily compensated by using a grinding process, and then the residual film layer is synchronously consumed by using an etching process, so that the height difference of the insulating material is reduced, and the difficulty of a CMP (Chemical Mechanical Polishing) process is reduced.

The invention discloses aluminum gusset plate surface film coating processing equipment, and aims to solve the problems that the surface temperature of a film coating roller needs to be set to be far higher than the activation temperature of a glue layer in the conventional equipment, so that the temperature control requirement on a heating element is relatively high, otherwise, a film is easy to shrink and deform to a certain extent under the action of high temperature. According to the technical scheme, the aluminum gusset plate surface film coating machining equipment is characterized by comprising a film coating roller, a matching roller and a driving part for driving the matching roller to rotate, a plate input platform is arranged at the front end of the film coating roller and the front end of the matching roller, and a plate input assembly is arranged on the plate input platform. According to the aluminum gusset plate surface film coating processing equipment, a film is preheated step by step through the preheating assembly, the temperature of the film is closer to the temperature needed by film coating when the film reaches the film coating position, the heating temperature of the film coating roller only needs to be controlled to be slightly higher than the activation temperature, and the heating temperature requirement of the film coating roller is lowered; and the problem that the film shrinks and deforms due to overhigh surface temperature of the film laminating roller is avoided.

The invention discloses a device and a method for measuring geometric parameters and performance parameters of a sample, the device comprises a white light interference measurement module, a Raman spectrum measurement module and an ellipsometry measurement module, and the white light interference measurement module and the Raman spectrum measurement module adopt a partial common-path design. Common-optical-path measurement of Raman spectrum data and interference fringe images is achieved, the surface appearance and material composition information of the same measurement point position can be obtained at the same time, and in-situ high-precision obtaining of geometric parameters and material composition information in ellipsometry modeling is achieved. The condition of analysis errors caused by inconsistent information carried by different measurement points of the heterogeneous film is avoided, and the precision and the reliability of an ellipsometry measurement result can be greatly improved. According to the method for measuring the geometric parameters and the performance parameters of the film layer on the surface of the wide bandgap semiconductor wafer, the morphological information and the performance parameters of the heterogeneous film can be comprehensively and accurately measured and represented by combining the ellipsometric spectrum, the white light interference, the Raman spectrum and other technologies.

The invention discloses a low-temperature curable bismaleimide resin-based composite material surface film and a preparation method thereof, relates to the field of bismaleimide resin composite material surface films, and aims at solving the problem that the curing temperature of an existing bismaleimide resin composite material surface film is too high. The surface film is composed of bismaleimide resin, an allyl compound, thermoplastic resin, a catalyst and a fluidity control agent. The preparation method comprises the following steps: adding the allyl compound into a reaction kettle, heating and stirring, adding the thermoplastic resin, cooling, adding the bismaleimide resin, continuously heating and stirring, and carrying out double-roller hot rolling film forming on the bismaleimide resin and a carrier for manufacturing an adhesive film through an adhesive film machine to prepare the low-temperature curable bismaleimide resin surface film.

A display device that includes a display element including a light source, and a surface film disposed so as to overlap with the display element and including a thermoplastic elastomer composition, the thermoplastic elastomer composition satisfying conditions (1) and (2) below, and the surface film satisfying conditions (3) and (4) below: (1) The melt flow rate (ASTM D1238, 230° C., 2.16 kg load; MFR) is not less than 30 g / 10 min. (2) The type A hardness (momentary value) measured by a method in accordance with JIS K6253 is 60 to 90. (3) The thickness is not less than 300 μm and not more than 2 mm. (4) The total light transmittance measured by a method in accordance with JIS K7361 is 3 to 60%.

The invention provides an electrode plate, a secondary battery and an electric device. The electrode pole piece comprises a current collector and a film layer located on at least one surface of the current collector, the film layer is provided with a first surface away from the current collector and a second surface arranged opposite to the first surface, the thickness of the film layer is marked as H, and an area within the thickness range from the second surface of the film layer to 0.3 H is marked as a first area of the film layer, the area from the first surface of the film layer to the thickness range of 0.3 H is marked as the second area of the film layer, the first area and the second area both contain a binder, and the ratio of the mass content of the binder in the second area to the mass content of the binder in the first area is 0.4-1.7; the preparation method of the electrode pole piece comprises the following steps: coating: coating at least one surface of a current collector with electrode slurry, and drying to obtain an initial pole piece; and heating treatment: carrying out electromagnetic induction heating treatment on the surface of the initial pole piece to obtain the electrode pole piece.

The invention discloses a calculation method and a calculation device for a film state boiling starting point of a surface with dirt, and belongs to the field of nuclear power. The calculation method for the membrane state boiling starting point of the surface with the dirt comprises the following steps: establishing a fuel rod cladding surface heat exchange model with the dirt according to a fuel rod cladding model with the dirt and thermal parameters, and calculating to obtain a heat conductivity coefficient and permeability of a dirt area; calculating the gas film thickness at the beginning of film boiling; according to the pressure balance and energy conservation equation, the heat flux corresponding to the minimum gas film thickness value is obtained through calculation and serves as the initial heat flux of film boiling. The method can accurately calculate the initial heat flux density of membrane boiling under the influence of dirt, and improves the precision of systematically analyzing the influence of dirt on the thermal hydraulic performance of a reactor.

The invention relates to a preparation method of a solar cell, the solar cell and a photovoltaic module, and belongs to the field of photovoltaic technology, and the preparation method of the solar cell comprises the steps: providing a substrate, the first surface of the substrate is provided with a pyramid structure, a doped conductive region is formed on the first surface, and a silica glass layer is formed on the side, away from the first surface, of the doped conductive region; laser processing is carried out on the first area part of the first surface, so that a low-concentration doped area is formed in the substrate, meanwhile, at least part of the silica glass layer located at the spire part of the pyramid structure in the first area is broken to form a notch, wet etching is carried out on the first surface side, and the notch can accelerate the rate of subsequent etching of the surface film layer of the first area; therefore, the efficiency of preparing the solar cell is improved.

The invention discloses a paper-based molded coffee capsule capable of being naturally composted, a PHA aqueous dispersion in-situ film forming barrier heat-sealing composite layer, a preparation method and application thereof, and belongs to the field of degradable packaging and single-cup extraction capsules. The capsule body is formed by molding paper pulp and is provided with a side wall, a bottom wall and a mouth flange; the biodegradable polyester-based film sealing component is connected to the flange in a sealing manner; and the polyhydroxyalkanoate barrier heat-sealing composite layer covers the inner surface of the body and the sealing surface of the flange. The composite layer is obtained by in-situ film forming of a particle size gradient double-layer aqueous dispersion and comprises a permeation anchoring layer located in paper pulp pores and a continuous compact layer located on the outer side in the thickness direction. The flange is a hot-pressing densified area, and a local thickening heat sealing ring is formed on the sealing face of the flange. Through physical anchoring of the small-particle-size components and surface film forming of the large-particle-size components, the moisture and oxygen blocking and interface bonding performance is achieved, and the brewing sealing performance is guaranteed.

The invention discloses a curved surface film covering flatness self-adaptive control method based on machine vision, and relates to the technical field of mechanical arm control. The system comprises a machine vision sensing module, a robot end effector, a composite controller and a distributed clamping jaw array. The method comprises the following steps: acquiring a fringe projection image sequence and dynamic trajectory data of an end effector; performing phase calculation and three-dimensional reconstruction on the image sequence, constructing a digital elevation model and calculating flatness error data; inputting the dynamic trajectory data into a feedforward controller to generate a compensation instruction, inputting the flatness error data into a feedback controller to generate a correction instruction, and superposing to obtain a comprehensive correction instruction; and acquiring a strain sensitivity matrix, distributing the comprehensive correction instruction into displacement execution parameters of each clamping jaw by utilizing pseudo inverse operation, and issuing and executing the displacement execution parameters. According to the method, real-time sensing and active intervention of dynamic deformation are realized, and the yield and batch consistency of curved surface film coating are remarkably improved.

The invention relates to a visual tactile sensor combined with a magnetic temperature measurement module. The sensor comprises a main body part and a detachable module at the top, the main body part comprises a sensor base, an isolation ring, acrylic glass and a sensor shell; the isolation ring at the top is changed into an isolation ring with a 15-degree conical inner wall; the detachable module comprises a black soft PDMS layer, a semitransparent silica gel layer, a film PT100 resistor, a hard PDMS layer, a magnet ring and a PET mirror film; wherein the hard PMDS layer is fixed on the PET mirror surface film; a semitransparent silica gel layer is arranged above the hard PMDS layer; a black soft PMDS layer is arranged above the semitransparent silica gel layer; and the PET mirror surface film is attached to the acrylic plate of the main body part. The invention has the advantages of simple structure, stable performance, easy maintenance and the like, and can be widely applied to the fields of miniature high-precision temperature detection, optical imaging, multifunctional sensing systems and the like.

The invention discloses a preparation method of high-conductivity low-temperature sintered silver paste, which comprises the following steps: sequentially mixing organic silicon resin, a thickening agent, a thixotropic agent, a flatting agent, a defoaming agent and a silane coupling agent with an organic solvent, fully preheating at 50 DEG C, and uniformly stirring; then silver powder is added twice, the micron-sized flake silver powder is added for the first time, the silver nanoparticles are added for the second time, and uniform stirring is performed to obtain premixed slurry; and grinding the premixed paste for multiple times by using a mortar to obtain the finished silver paste. According to the silver paste and the preparation method thereof, the micron-sized flaky silver powder and the silver nanoparticles are mixed to jointly serve as a conductive phase, and the silver nanoparticles with relatively small particle sizes are used for filling pores among the flaky silver powder with relatively large particle sizes, so that a surface film layer of the prepared silver paste is more compact after printing and sintering, and the conductivity is improved. And meanwhile, through the synergistic effect between the flaky silver powder and the silver nanoparticles, the bending resistance of the sintered silver paste is improved.

The invention provides a construction concrete curing process, which relates to the technical field of building construction, and comprises the following steps: carrying out surface film forming treatment at the initial setting stage of concrete; laying a composite maintenance layer with water retention and reflection functions; the concrete humidity is monitored through an embedded humidity sensor, and humidity data is obtained; controlling a local water supplementing system to operate according to the humidity data; and dynamic temperature regulation is implemented in combination with the environment temperature. Pores in the surface of the concrete are sealed by the water-retaining film layer, so that the problem of early cracking caused by rapid evaporation of water is solved; water is evenly distributed through the composite maintenance layer, local dry-wet difference is eliminated, solar radiation is reflected, the surface temperature is lowered, and temperature stress cracks are reduced. The concrete humidity is monitored through the humidity sensor, water is supplemented according to needs, compared with regular spraying, the use amount of water resources is reduced, and the water saving effect is achieved; and the contradiction that the strength is reduced due to excessive water replenishing or shrinkage is caused due to insufficient water replenishing in traditional curing is also solved.

The application discloses a paper-based moulded coffee capsule capable of natural composting, a PHA aqueous dispersion in-situ film-forming barrier heat-sealing composite layer and a preparation method and application thereof, and belongs to the field of degradable packaging and single-cup extraction capsules. The capsule comprises a capsule body formed by moulded paper pulp, a side wall, a bottom wall and a mouth flange, a biodegradable polyester-based film sealing member sealed to the flange, and a polyhydroxyalkanoate barrier heat-sealing composite layer coated on the inner surface of the body and the sealing surface of the flange. The composite layer is obtained by in-situ film-forming of a particle size gradient double-layer aqueous dispersion, and comprises an infiltration anchoring layer located in the pores of the paper pulp and a continuous dense layer on the outside along the thickness direction. The flange is a heat-pressed densification area, and a locally thickened heat-sealing ring is formed on the sealing surface of the flange. The application realizes the moisture and oxygen barrier and interface bonding performance through physical anchoring of small particle size components and surface film-forming of large particle size components, and guarantees the brewing sealing performance.

The utility model provides a semiconductor cleaning device and a chuck structure thereof, comprising a chuck base body used for bearing a wafer, a gas inlet channel is arranged in the chuck base body, the gas inlet channel is provided with a plurality of gas outlets on a first surface of the chuck base body opposite to the wafer, and the gas outlets are used for bearing the wafer through blown gas; a first annular boss is arranged on the first surface, the upper surface of the first annular boss is higher than the lower surface of a wafer borne by gas, the inner diameter of the first annular boss is larger than the diameter of the wafer, and a first flow guide channel is formed between the inner circumferential face of the first annular boss and the edge of the wafer. According to the scheme, the corrosion area of the film layer on the lower surface of the wafer can be reduced, and advanced process requirements are met.

The invention discloses a compound fluralana external preparation for dogs, a preparation method and application, belongs to the technical field of veterinary drugs, and solves the problems that an existing preparation is poor in skin surface permeability, a solvent is easy to volatilize, and use experience and drug effect exertion are influenced. The preparation is prepared from the following raw materials: fluralana, moxidectin, ethyl butylacetamidopropionate and N, N-dimethylformamide. The preparation method comprises the following steps: adding N, N-dimethylacetamide, acetone, an auxiliary adjuvant, a transdermal penetration enhancer, an antioxidant and a surface film-forming agent; according to the invention, the combination of the fluralab and the moxidectin can play a synergistic effect and expand an anti-parasitic spectrum so as to achieve an internal and external driving effect; both the fluralab and the moxidectin belong to high-fat-soluble substances, parasites can be quickly repelled and killed by adding novel adjuvant natural parasite expelling ingredients, and meanwhile, the skin permeability can be improved by adding the efficient transdermal penetration enhancer, and the risk that medicine residues are licked by pets is reduced.

The invention discloses an FRP daylighting panel with high impact resistance and a preparation method of the FRP daylighting panel, and relates to the technical field of FRP daylighting panels. The FRP daylighting panel comprises a surface film, a gel coat layer, a matrix layer and a bottom film which are arranged in sequence, the matrix layer is formed by heating and curing a matrix resin material which fully infiltrates a modified composite yarn felt, and the modified composite yarn felt is prepared by soaking and modifying glass fibers with a modified impregnating compound. According to the invention, the acrylate film-forming agent is matched with the silane coupling agent to prepare the modified impregnating compound, and the glass fibers are modified, so that the light transmittance of the FRP daylighting panel paved with a multi-layer glass fiber structure can be effectively improved, and the FRP daylighting panel is enabled to have relatively high light transmittance and good impact resistance at the same time. In addition, by additionally arranging the gel coat layer, the weather resistance of the FRP daylighting panel can be prolonged, and the FRP daylighting panel can still keep high impact resistance after being used for a long time.

The invention provides a deep-absorption UV (ultraviolet) gloss oil composition for a scratch-resistant and doodling-resistant PVC (polyvinyl chloride) building material mask and a preparation method of the deep-absorption UV gloss oil composition, the deep-absorption UV gloss oil composition comprises a UV curing resin system, a reactive diluent 1, 6-hexanediol diacrylate, a specific photoinitiator compound system, a nano-scale scratch-resistant and wear-resistant filler, a fluorine-modified organic silicon anti-doodling aid and other aids, and the deep-absorption UV gloss oil composition does not contain matte powder. The preparation method comprises the following steps: coating a PVC building material mask base material with the UV gloss oil composition, covering an ultra-matte pressed film, then carrying out film pressing treatment to copy an ultra-matte surface structure and isolate oxygen, then carrying out sectional curing by adopting LED-UV lamps with different wavebands, and finally stripping the pressed film. Through collaborative innovation of a formula and a process, an extreme ultra-matte effect of which the glossiness is lower than 1.2 GU can be obtained without adding matte powder, meanwhile, the hardness of a coating can reach 5H or above, and the coating has excellent scratch-resistant and doodling-resistant performance, and is high in curing efficiency and environment-friendly in process.

The application provides a construction concrete curing process and relates to the technical field of building construction, which comprises the following steps: surface film forming treatment is performed in the initial setting stage of the concrete; a composite curing layer with water retention and reflection functions is laid; the humidity of the concrete is monitored through a buried humidity sensor to obtain humidity data; a local water supplement system is controlled to operate according to the humidity data; and dynamic temperature regulation is implemented in combination with the ambient temperature. The water retention film layer seals the surface pores of the concrete, solving the early cracking caused by the rapid evaporation of water. The composite curing layer uniformly distributes water, eliminates the local dry-wet difference, reflects solar radiation, reduces the surface temperature and reduces the temperature stress cracks. The humidity of the concrete is monitored through the humidity sensor, and water is supplemented as needed, which reduces the water resource consumption compared with the timed spraying, achieves the water saving effect, and also solves the contradiction between the strength reduction caused by the excessive water supplement and the shrinkage caused by the insufficient water supplement in the traditional curing.

The embodiment of the utility model discloses film pasting equipment which comprises a discharging mechanism, a film pulling mechanism, a film stripping knife, a product loading mechanism, a side surface film pressing mechanism, a top surface film pressing mechanism and a material receiving mechanism, and a material film extends out of the discharging mechanism and then moves along a preset path to sequentially pass through the film stripping knife and the film pulling mechanism to the material receiving mechanism. When the film pulling mechanism pulls a material film to the film stripping position, the film stripping knife strips the film from a material belt, the product loading mechanism and the side face film pressing mechanism are matched to completely attach the film to the side face of a product, and the top face film pressing mechanism completely attach the remaining part of the film to the top face of the product. The film pasting equipment is simple in structure, capable of being suitable for various types of products, high in film pasting yield and stable in effect.

The invention discloses a composite spraying film material for heat dissipation of an air conditioner outdoor unit. The composite spraying film material comprises a first complexing agent and a second complexing agent, according to the air compressor, the first complexing agent and the second complexing agent are cooperatively matched, the first complexing agent can form a rough material layer on the surface of the air compressor to serve as a bottom film layer, the rough surface is composed of countless randomly-distributed tiny concave-convex structures, the effective radiation area is increased through the concave-convex structures, and then the radiation efficiency is effectively improved; furthermore, a surface film layer is formed on the bottom film layer through a second complexing agent, the surface film layer is coated on the concave-convex structures in the bottom film layer, so that the radiation heat dissipation of each concave-convex structure in each direction is further improved, and the surface film layer and the bottom film layer jointly assist the heat dissipation of the surface oxide layer of the air compressor. The heat generated by working of the air compressor can be quickly dissipated, so that the temperature of the air compressor is kept in the optimal working temperature range, and finally, the refrigerating or heating effect can be close to the preset temperature.

The invention discloses an aluminum silicon-zinc magnesium coated steel plate with antibacterial performance and corrosion resistance and a manufacturing method thereof, and belongs to the field of hot dipping. The method comprises the following steps: (a) carrying out alkali washing, electrolytic degreasing, continuous annealing, hot dipping, air knife purging and cooling after plating on a cold-rolled substrate to form an aluminum-silicon coating steel plate; (b) depositing a zinc film and a magnesium film on the surface of the aluminum-silicon coated steel plate by using a magnetron sputtering coating technology to obtain an aluminum-silicon coated steel plate with the zinc film and the magnesium film; and (c) heating the aluminum-silicon coating steel plate with the zinc and magnesium films in a vacuum heating furnace, so that the coating and the surface film are fully diffused, and the aluminum-silicon-zinc magnesium coating steel plate with antibacterial property and corrosion resistance is prepared. The composite coating is prepared through a two-step method of coating prefabrication and diffusion annealing, element distribution and an organization structure in the coating are regulated and controlled, the obtained steel plate has the antibacterial performance, and the corrosion resistance of the steel plate is improved.

The utility model discloses an infant paper diaper with a slotted cotton core. The infant paper diaper comprises a surface film, a composite core body and a bottom film which are stacked from top to bottom, the surface film, the composite core body and the bottom film are bonded and fixed through a hot melt adhesive; a plurality of material cutting grooves are formed in the composite core body through cutting; the multiple material cutting grooves are arranged at intervals in the longitudinal direction and / or the width direction of the composite core body. According to the paper diaper, the material cutting grooves are formed through the cutting and drilling technology, the surface area of the composite core body is enlarged through the material cutting grooves, the effective contact face of liquid and the composite core body can be enlarged, urine and thin excrement can be absorbed and diffused into the composite core body more rapidly, the surface of the paper diaper product is kept dry and comfortable, and the paper diaper is not prone to falling off. And a large-volume composite core body can be easily used for storing liquid, so that urine leakage is avoided.

The utility model belongs to the technical field of paint spraying devices, and particularly discloses an integrated small paint spraying device which comprises a shell and a sliding rail, the sliding rail is installed on the right side of the lower portion in the shell, a cart is connected to the upper portion of the sliding rail in a sleeved mode, a check block is fixed to the left side of the sliding rail, and four sets of idler wheels are installed at the bottom of the cart. A driving motor is installed in the center of the interior of the cart, and a connecting frame is fixed to the top of the cart. According to the integrated small paint spraying device, the upper portion of the sliding rail is sleeved with the cart, the handle is held, the connecting frame and the cart at the bottom are guided to walk along the top of the sliding rail, four sets of rolling wheels at the front position and the rear position all have the supporting and lubricating effects, and sprayed finished product accessories in a shell do not need to be manually contacted; when the accessory is taken out, the accessory can be placed in an external environment to stand for a certain time, and is disassembled after surface films of the accessories at the hanging rods and the hanging rings are formed, so that the problem that the accessories are inconvenient to take out and replace is solved.

The utility model relates to the technical field of laminating and laminating machines, in particular to a plastic floor laminating and laminating machine which is characterized in that during use, a plastic floor is placed on a conveying assembly to be conveyed, in the conveying process, a dust removal assembly carries out dust removal operation on the upper surface of the plastic floor, and after dust removal is completed, the plastic floor is subjected to laminating and laminating. The film covering assembly conducts upper surface film covering on the plastic floor subjected to dust removal, and the influence of dust on film covering is reduced; comprising a supporting table, a workbench and a notch, the workbench is arranged at the top end of the supporting table, the notch is formed in the top end of the workbench, the device further comprises a conveying assembly, a dust removal assembly and a film covering assembly, the conveying assembly is arranged in the notch, the dust removal assembly and the film covering assembly are arranged at the top end of the supporting table, and the dust removal assembly and the film covering assembly are both arranged above the conveying assembly.

The utility model belongs to the technical field of lampshade extrusion mould, especially a surface film -coated silica gel face guard extrusion mould, including extrusion host computer and extrusion auxiliary machine, the discharge end of extrusion host computer is installed with feed pipe, one end fixed mounting of feed pipe has main flow guide pipe, the inside of main flow guide pipe is provided with main flow guide cavity, the inner wall of main flow guide cavity with the feed inner wall of feed pipe fixed communication. This surface film -coated silica gel face guard extrusion mould, this silica gel face guard extrusion mould improves production efficiency and stability significantly through precision design, has optimized mould forming effect, has improved the design of auxiliary material runner and air vent, has ensured that material flows smoothly, has reduced bubble and impurity. Through the combination with black sanding matte film, not only has improved product appearance, also has avoided the reflection phenomenon, has increased the durability. The silica gel co -extrusion technology has simplified production technology, has reduced the cost, and has ensured product quality simultaneously.

The utility model relates to the field of glass cover plate detection, in particular to a detection sorting mechanism. Comprising a film tearing device used for tearing off a film on the surface of the glass cover plate and a detection device used for detecting and sorting the glass cover plate after film tearing. According to the detection sorting mechanism, due to the arrangement of the film tearing device and the detection device, film tearing treatment can be efficiently carried out on glass cover plates, the automation degree is high, adhesion blocks can be fully utilized, the cost is saved, appearance detection can be efficiently and accurately carried out on the glass cover plates, and the glass cover plates can be conveyed out in a classified mode; the industrial efficiency is greatly improved, and the method is suitable for industrial application.

This invention discloses a polymer-loaded drug-eluting nanoparticle with high encapsulation efficiency and its application in coatings and surface film materials. The polymer-loaded drug-eluting nanoparticles are prepared via emulsion polymerization, simultaneously loading antibacterial drugs with different log P values. The preparation process is simple, and the resulting product has small particle size, high molecular weight, high uniformity, and high drug encapsulation efficiency, achieving the substitution of non-reactive surfactants with reactive surfactants. A coating can be prepared using the above-mentioned polymer-loaded drug-eluting nanoparticles. The coating can be further used to prepare sustained-release antibacterial surface film materials through cross-linking film formation, exhibiting good mechanical properties, excellent chemical resistance, and high safety. This invention can be widely applied to various environmental and material surfaces, including but not limited to surface modification of instruments and building materials in residential and medical environments, thereby achieving a long-lasting antibacterial effect.