57results about How to "Increase the transmission path" patented technology

The invention discloses a solar cell which comprises a silicon substrate, the surface of at least one side of the silicon substrate is provided with a micro-suede of a sand dune-like structure, and a tunneling oxide layer is laminated on the micro-suede; the sand dune-like structure is provided with at least one vertex, and 3-6 curved side edges pass through each vertex; and the side edges are sunken towards the inner part of the sand dune-like structure. The invention also provides a preparation method of the solar cell. According to the solar cell, the surface reflectivity of the solar cell can be effectively reduced, and the characteristics of surface passivation, surface contact and the like are improved, so that the transmission efficiency and the collection efficiency of carriers are improved, and the short-circuit current density and the conversion efficiency of the solar cell are further improved.

The invention relates to the technical field of solar cells, and discloses a solar cell module which comprises a plurality of back contact cells and a plurality of welding strips. The back contact battery comprises a battery substrate and a grid line arranged on the surface of the battery substrate, a plurality of Pad points are arranged on the grid line, each welding strip is connected with the grid line through the Pad points, each welding strip is further connected with the grid line through a welding point, and the welding point is a non-Pad point; the total number of welding points and Pad points, connected with the grid line, of each welding strip is x, the main grid power loss of the back contact battery is y, x and y meet the following formula I: y = a * xb, and a and b are constants. According to the invention, the transmission loss of current carriers can be reduced, and the CTM loss of the assembly can be reduced.

The invention discloses an adsorption heat storage material with a multi-stage stepped pore structure and a preparation method of the adsorption heat storage material, according to the material, a metal foam matrix is combined with the multi-stage pore structure, and the storage and release efficiency of heat energy is remarkably improved. Specifically, the metal foam matrix is composed of a plurality of metal foam layers with different porosities, and the porosities are gradually increased in the heat source direction, so that the heat resistance is effectively reduced, and the diffusion of adsorbate is accelerated. The adsorbent coating is coated with an adsorption material mixture containing a template agent, and is subjected to drying and roasting treatment to form a multi-stage pore structure comprising macropores, mesopores and micropores, so that the adsorption diffusion speed and the adsorption capacity are improved. The material not only improves the heat energy storage and energy release capabilities, but also optimizes the diffusion rate of adsorbate. According to the preparation method, through simple and convenient processes such as splicing of the metal foam layer and coating of the adsorbent, the production cost is reduced, the preparation process is efficient and controllable, and wide application prospects are achieved.

The embodiment of the invention discloses an optical-mechanical system which comprises a light emitting assembly, a light receiving assembly and a light scanning assembly, the light scanning assembly comprises a first light scanning element and a second light scanning element, and the first light scanning element and the second light scanning element are arranged in the first linear direction. One of the light emitting assembly and the light receiving assembly is located on the side, away from the second light scanning element, of the first light scanning element, and the other one of the light emitting assembly and the light receiving assembly is located on the side, away from the first light scanning element, of the second light scanning element. According to the embodiment of the invention, the transmission paths of the transmitted optical signal and the echo optical signal can be prolonged, so that the light divergence angle is reduced, and the ranging performance of an optical-mechanical system is improved; and the light emitting assembly and the light receiving assembly can be separated in space, so that heat dissipation of the light emitting assembly and the light receiving assembly is facilitated. According to the optical-mechanical system provided by the embodiment of the invention, the passing rate of the optical-mechanical system during the 85 DEG C test of the vehicle gauge can be improved on the basis of realizing long distance measurement and high resolution, and the product yield is improved.

The utility model belongs to the technical field of batteries, and discloses a battery pole piece and a battery cell, the battery pole piece comprises a pole piece body, an embossed area is arranged on the pole piece body, the embossed area at least comprises two kinds of embossments with different depths along the direction from the winding starting point to the winding ending point of the pole piece body, the embossing depth close to the winding starting point is larger than the embossing depth away from the winding starting point. The battery pole piece can effectively reduce the lithium precipitation phenomenon of the battery, and is favorable for improving the capacity of the battery and prolonging the cycle life.

The invention provides an intrinsic magnetic MXene material and a preparation method and application thereof, the preparation method comprises the following steps: S1, mixing an aqueous solution of MXene with an alkaline reagent, and carrying out ultrasonic dispersion to obtain a mixed dispersion liquid; freezing the mixed dispersion liquid into a solid by liquid nitrogen; the alkaline reagent is potassium hydroxide or sodium hydroxide; s2, the obtained solid is subjected to freeze drying, and the Archimedes screw type MXene aerogel is obtained; s3, the Archimedes spiral type MXene aerogel is subjected to heat treatment under the protection of inert gas, and the intrinsic magnetic MXene material is obtained. The invention designs and develops a single-component pure MXene electromagnetic wave absorbing material on the premise of not introducing magnetic nanoparticles.

The invention belongs to the technical field of battery materials, and particularly relates to a modified high-nickel ternary positive electrode material and a preparation method and application thereof. The preparation method of the modified high-nickel ternary positive electrode material provided by the invention comprises the following steps: 1) mixing a lithium source, a precursor, a tellurium source and a divalent metal compound, and performing first calcination to obtain a first calcined product; (2) dissolving tellurate in an organic solvent, mixing and grinding the formed tellurate organic solvent solution and the first burning product obtained in the step (1), and then carrying out second burning to obtain a second burning product; the tellurate is selected from at least one of potassium tellurite and sodium tellurite; and (3) washing the secondary calcined product obtained in the step (2) with water, mixing with boric acid, and carrying out third calcination to obtain the modified high-nickel ternary positive electrode material. Through the specific preparation method and the synergistic effect among the steps, the obtained modified high-nickel ternary positive electrode material has good specific capacity, first effect and cycle performance.

The utility model discloses an efficient sound insulation composite aluminum alloy cellular board which comprises an aluminum alloy shell and a cellular core arranged in the aluminum alloy shell, the aluminum alloy shell comprises an aluminum alloy seat, the aluminum alloy seat is provided with a shell inner cavity with one end open, and an aluminum alloy partition plate is arranged at the position, close to the bottom of the shell inner cavity, in the shell inner cavity. A closed shell interlayer space is formed between the aluminum alloy partition plate and the bottom of the shell inner cavity, the honeycomb core is arranged in the shell inner cavity and located between the aluminum alloy partition plate and the opening end of the shell inner cavity, and the honeycomb core is filled with a particle layer fixed through gel. The sound insulation and noise reduction composite board achieves better sound insulation and noise reduction effects, meets the requirement for efficient sound insulation, is convenient to install, can be directly attached to the wall face, and is high in installation stability, more stable and more reliable. The high-efficiency sound insulation function on sound waves of different frequency bands can be realized by changing the particle size of the particles and the space height of the interlayer of the shell, and the sound insulation device has wide adaptive capacity and is convenient to popularize and apply.

The invention belongs to the field of polarization optical transmission and detection. The invention provides a polarization transmission testing device and a polarization transmission testing method for simulating a complex sea fog environment, aiming at solving the problems of unclear seeing, undistant recognition, difficulty in testing and the like during ocean exploration and building an indoor semi-physical simulation platform to research polarization transmission characteristics in the complex sea fog environment. The device comprises a polarized light generation module, a horizontal adjustable rotating table, a complex medium optical environment module and a polarized light receiving and measuring module. The polarized light generation module is used for generating and emitting polarized light with a certain wavelength and a certain polarization state; the horizontal adjustable rotating table is used for adjusting azimuth angle information of emitted polarized light; the complex medium optical environment module is used for simulating an actual medium particle environment above the near sea level; and the polarized light receiving and measuring module is used for measuring and analyzing the received polarized light. And the parameter information is substituted into a Monte Carlo program for analogue simulation to obtain the polarization transmission characteristic of the polarized light transmitted in the complex sea fog environment, so that the simulation of the complex sea fog environment system and the test of the polarization transmission characteristic in the environment are of great significance.

The invention belongs to the technical field of lithium ion batteries, and discloses a lithium manganese iron phosphate material and a preparation technology thereof.Titanium / silicon dioxide aerogel is added in the preparation process of the lithium manganese iron phosphate material, an iron source, a manganese source and a phosphorus source are co-precipitated on the titanium / silicon dioxide aerogel, iron ions and manganese ions can be kept in a stable and unified valence state, and the lithium manganese iron phosphate material is prepared. The dissolution of manganese is reduced; a silicon atom framework can improve the stability of the material and provide a high-conductivity network for transmission of lithium ions and transfer of electrons, and doping of titanium atoms can change the electronic structure of the material, increase the conductivity of the material and further accelerate the conduction efficiency of the lithium ions, so that the conductivity of the lithium ion battery is improved. The transmission path of electrons is optimized, and the problems that the lithium manganese iron phosphate material is poor in conductivity and low in lithium ion diffusion rate are solved.

The invention discloses an ion needle mounting seat of an ion fan. The ion needle mounting seat comprises a circular discharge seat, a plurality of fixing assemblies used for installing ion needles are arranged on the side wall of the discharging base at uniform intervals in the circumferential direction, and the adjacent fixing assemblies are arranged in a staggered mode. A plurality of insulating isolation plates are arranged on the side wall of the discharging seat at intervals and located between every two adjacent fixing assemblies; the end face of the discharge seat is provided with isolation grooves at two sides of the insulation isolation plate. According to the ion needle mounting base of the ion fan, when the ion needle works, the creepage phenomenon can be effectively avoided, so that the static elimination efficiency and effect are improved, meanwhile, the service life of equipment is prolonged, and the maintenance cost of the equipment is reduced.

The invention provides an elastic conductive nanofiber-based composite material and a preparation method and application thereof.The preparation method comprises the steps that S1, metal salt is added into an organic mixed solvent to be evenly mixed, then a high-molecular polymer is added, mixing continues to be conducted, and an electrostatic spinning solution is prepared; s2, injecting the electrostatic spinning solution into an injector, and preparing a metal salt / high-molecular polymer nanofiber composite membrane through electrostatic spinning; and S3, the prepared metal salt / nanofiber composite membrane is placed in a reducing solution for reduction, and after drying, the metal / nanofiber composite membrane is prepared. The multifunctional composite membrane material prepared by the invention has the characteristics of high conductivity, flexibility, high mechanical strength, good comfort and the like, and has huge potential in the fields of miniature electronic equipment, human body wearing, aerospace and the like.

The invention belongs to the field of functional composite material preparation, and particularly relates to a method for preparing an expanded graphite / silver composite material through microwave expansion, and the method comprises the following steps: soaking graphite in an acid solution for oxidation treatment and heating, and then cleaning the graphite with deionized water until the solution is neutral to obtain graphite subjected to acid treatment; the preparation method comprises the following steps: mixing graphite subjected to acid treatment with an AgNO3 solution, uniformly stirring, then carrying out ultrasonic treatment, enabling the graphite to be uniformly infiltrated by the AgNO3 solution, carrying out freeze drying treatment on the mixture, baking the treated material under an infrared lamp, carrying out microwave expansion treatment on the baked mixture, cooling a product subjected to microwave expansion treatment, and carrying out tubular furnace pyrolysis, thereby obtaining the AgNO3 / AgNO3 composite material. And cooling to obtain the expanded graphite / silver composite material. The product obtained by the method disclosed by the invention has relatively high specific surface area and excellent conductivity.

The application relates to a porous SiCN nw composite wave-absorbing ceramic and a preparation method thereof, and belongs to the field of ceramic-based wave-absorbing materials. The porous SiCN nw composite wave-absorbing ceramic comprises a porous Si3N4 ceramic matrix, a carbon layer uniformly wrapped on the pore wall surface of the porous Si3N4 ceramic matrix, and SiCN nanowires uniformly grown in the pores of the porous Si3N4 ceramic matrix; wherein the total mass of the carbon layer and the SiCN nanowires is 1-10 wt% of the porous Si3N4 ceramic matrix. By introducing the carbon layer and the SiCN nanowires with different structures into the pore structure of the Si3N4 matrix ceramic, the two components of the wave-absorbing phase can synergistically exert the advantages of each component, optimize the impedance matching degree of the material, and broaden the absorption bandwidth of the material. Moreover, the process is simple, the proportion of the two wave-absorbing phases can be regulated by changing the heat treatment temperature, the impedance matching degree of the material is optimized, and the prepared porous SiCN nw composite ceramic has good wave-absorbing performance.

The invention provides a wave-absorbing honeycomb material and a preparation method thereof. The wave-absorbing honeycomb material comprises an aramid paper honeycomb substrate, and a foam absorbing layer, an optional foam transition layer and a foam matching layer which are sequentially arranged in honeycomb holes of the aramid paper honeycomb substrate from outside to inside, wherein the dielectric constant of the foam matching layer is gt; the dielectric constant gt of the foam transition layer; the foam absorbs the dielectric constant of the layer. According to the wave-absorbing honeycomb material, the technical effects of improving the broadband absorbing effect and reducing the thickness are achieved.

The invention relates to a preparation method of a Sb2S3 / MoS2 composite wave-absorbing material, which comprises the following steps: dissolving antimony chloride, L-cysteine and sodium sulfide nonahydrate in deionized water, uniformly stirring to obtain an orange mixed solution, transferring the orange mixed solution into a reaction kettle, carrying out hydrothermal reaction to obtain an antimony sulfide nano-material, dissolving the antimony sulfide nano-material and sodium molybdate dihydrate in deionized water, and carrying out hydrothermal reaction to obtain the Sb2S3 / MoS2 composite wave-absorbing material. And adding thiourea under rapid stirring to obtain a mixed solution, transferring the mixed solution into a reaction kettle, heating to carry out hydrothermal reaction, cooling, washing, filtering and drying to obtain the product. The method is simple in process and low in raw material cost, the prepared wave-absorbing material is of a rod-shaped structure, the transmission path of electromagnetic waves is prolonged, dissipation of electromagnetic wave energy is increased, and meanwhile the defects that a traditional antimony sulfide material is high in filling rate and low in conductivity are overcome. The wave-absorbing material prepared by the method has the characteristics of wide absorption frequency band and small matching thickness, and has a better application prospect in the field of electromagnetic wave absorption.

The present invention provides a concave plate screen structure and a combine harvester, wherein the curvature of the cross section of the concave plate screen is 180 degrees; the connecting beams at both ends of the concave plate screen are arranged horizontally and overlapped with the horizontal mounting surface of the assembly beam; during installation, the connecting beams are directly fixed to the assembly beam through a locking assembly, and there is no need to perform palm support welding and fixing; the structure is simple, the installation operation is simple and easy, and manpower and material resources are saved. A limit adjustment structure is arranged at the notch formed between the outer screen surface of the two concave plate screens and the transition screen plate, and the limit adjustment structure is detachably fixed to the concave plate screens on both sides. When the limit adjustment structure is not arranged, part of the crops fall from the notch into the lower vibrating screen after passing through the first concave plate screen, and directly enter the subsequent process; when the limit adjustment structure is arranged, the crops enter the second concave plate screen from the first concave plate screen via the transition plate screen through a complete "J"-shaped direction, the transmission path is longer, and the threshing and screening effect is better.

The utility model provides a secondary battery and electric equipment, a pole piece assembly in the secondary battery comprises a first pole piece, a second pole piece and a diaphragm, at least one of the first pole piece and the second pole piece comprises a composite current collector, a first conductive layer, an active material layer and an electric conductor, the composite current collector is provided with a tab part and a bearing part which are connected with each other, the active material layer is stacked on the bearing part, the first conductive layer and the active material layer are arranged on the tab part at the same side, the first conductive layer is locally connected with the active material layer, a through hole penetrating through the tab part is formed in the end part, far away from the bearing part, of the tab part, and the through hole is filled with a conductor connected with the first conductive layer. According to the pole piece structure, the electron transmission path between the composite current collector and the active material layer is widened, conductive connection between the pole pieces in the pole piece assembly is achieved through the electric conductor, meanwhile, battery pole lug welding adopting the composite current collector is compatible with an existing process, and the welding difficulty between the pole pieces based on the composite current collector is reduced.

The present invention discloses a mobile biomedical isolation cabin, comprising a cabin, wherein an air shower room and a treatment room which are independently sealed from each other are arranged in the cabin; an air shower unit is arranged in the air shower room; the treatment room is provided with an air inlet and an air outlet, a fresh air channel is arranged on the top of the cabin, one end of the fresh air channel is connected to the outside of the cabin, and the other end of the fresh air channel is connected to the air inlet, and the air inlet and the air outlet are both provided with a fresh air unit; the fresh air unit comprises a filter unit, a plasma generating unit and an air supply unit which are connected in sequence along the air conveying direction; the plasma generating unit comprises an insulating tube, an anode is arranged on the inner wall of the insulating tube, a cathode is arranged on the central axis of the insulating tube, a reaction chamber is formed between the anode and the cathode, and a magnetic part is arranged on the outer wall of the insulating tube. The present invention has the advantages of good purification effect, high purification efficiency and can completely kill various microorganisms in the air.

The utility model relates to the technical field of glass manufacturing equipment, in particular to a conveyor. The conveyor comprises a rack, a first conveying assembly, a second conveying assembly and a first driving assembly. The first transmission assembly is arranged on the rack; in the conveying direction of the first conveying assembly, the second conveying assembly is located at the tail end of the first conveying assembly, and the second conveying assembly is rotationally arranged on the rack. When the first driving assembly drives the second conveying assembly to rotate relative to the rack to be flush with the first conveying assembly, the second conveying assembly can be spliced with the first conveying assembly so that products can be conveyed to the second station from the first station. When the first driving assembly drives the second conveying assembly to rotate relative to the rack in the direction deviating from the conveying direction of the first conveying assembly, space for operators to move is reserved between the second conveying assembly and the second station, so that the operators can conveniently move from one side of the conveyor to the opposite side of the conveyor, and the reserved space around the conveyor is reduced.

The utility model discloses a transfer transmission reversing assembly which is characterized in that a lifting mechanism is arranged below second guide mechanisms, a third guide seat which is in sliding connection with the four second guide mechanisms is arranged at the central position of a guide base, and the third guide seat connects the two symmetrical second guide mechanisms. When the two second guide mechanisms on the same diagonal line are in a lifting state, a first arc-shaped channel and a second arc-shaped channel are respectively formed between the second guide mechanisms and the third guide seat and between the two first guide mechanisms on the other diagonal line; and the first arc-shaped channel and the second arc-shaped channel which are symmetrically arranged communicate and connect the two adjacent transmission ports respectively. According to the transfer conveying reversing assembly, materials can be reversed and transferred on a plurality of conveying line pieces, the stability of material turning movement is improved, the situation that the materials are stopped in a curve is greatly reduced, and the continuity of material conveying is improved.

The present invention relates to a preparation method of a broadband strong microwave absorbing magnetic metal nanotube, which comprises the following steps: (1) in a vacuum environment, using heavy ions provided by a Lanzhou heavy ion accelerator to vertically and uniformly irradiate a 6-30 μm thick polycarbonate film to form a heavy ion track template; (2) the heavy ion track template is ultraviolet sensitized and chemically etched by an etching solution under ultrasonic conditions to obtain an etched template; (3) the etched template is ultrasonically cleaned and dried, and then completely immersed in a Sn (II) solution for pre-activation; after the pre-activation is completed, it is washed and dried to obtain a pre-activated template; (4) the pre-activated template is completely immersed in a palladium solution for activation, and after the activation is completed, it is washed and dried with deionized water to obtain an activated template; (5) the activated template is immersed in a chemical plating solution for nickel deposition to obtain a Ni nanotube with uniform wall thickness. The present invention has low cost and convenient operation, and the obtained nanotube has excellent microwave absorption performance.

The invention relates to the field of functional materials, in particular to a preparation method and application of a kapok-based porous material with a radiation cooling function. According to the method, natural kapok short fibers are subjected to constant-temperature alkali treatment to peel off wax on the surface layer, a delignification reaction is carried out with an acidic sodium chlorite solution, and the kapok-based porous material with the radiation cooling function is obtained. And the coarse reticular cellulose structure in the material is thoroughly exposed. The treated active fibers and nano cellulose are subjected to high-strength blending in a water phase, nano fibrils are guided to deeply penetrate into gaps of a micron-sized kapok skeleton, and a tightly-meshed composite system is constructed. And dropwise adding an organosiloxane reagent into the acidic liquid phase to complete surface hydrophobic modification, and carrying out controlled low-temperature setting and vacuum freezing sublimation dehydration to form the three-dimensional base material containing a micro-nano dual-pore network. The material can effectively reflect sunlight and emit heat radiation through an atmosphere window, zero-energy-consumption passive radiation cooling is achieved, and meanwhile the excellent heat insulation performance is achieved.

The application relates to a resistance conductive material and a preparation method and application thereof, wherein the resistance conductive material comprises, from bottom to top, a copper foil layer, a transition layer and a resistance layer; the resistance layer comprises a dispersion reinforcing phase and a homogeneous phase; the dispersion reinforcing phase is subjected to surface pretreatment before being added into an electroplating solution. Through the introduction of the transition layer and the dispersion reinforcing phase, the diffusion of copper into the resistance layer is inhibited, the high resistivity of the resistance layer is maintained, and the application prospect is good.

The utility model belongs to the field of glass fiber reinforced plastic grating processing, and particularly relates to a waste gas treatment mechanism applied to glass fiber reinforced plastic grating processing, which comprises a waste gas treater, a through gas guide pipe is mounted at the lower part of the waste gas treater, and the other end of the gas guide pipe is connected with an exhaust end seat; an exhaust end seat for exhausting is also arranged at the top of the waste gas treater; the spraying mechanism comprises a convex plate arranged at the lower part of the waste gas treater; a plurality of spraying devices are arranged at an opening of the convex plate; waste gas firstly enters a spraying treatment cavity of the waste gas treatment device to be subjected to primary treatment, falling liquid drops adhere to a large number of impurities mixed with the waste gas, floating waste gas enters an adsorption treatment cavity after being subjected to primary treatment, filter materials of the adsorption treatment cavity are arranged in a laminated mode, and the filter materials and a vent groove form a snake-shaped channel for gas transmission. A transmission path of the waste gas in the channel is increased, impurities are adsorbed in the inner cavity of the filter material in the transmission process, and the waste gas subjected to secondary filtering treatment can be normally discharged.

This invention discloses a dielectric-magnetic synergistic loss type electromagnetic wave absorbing material, its preparation method, and its application. The dielectric-magnetic synergistic loss type electromagnetic wave absorbing material of this invention comprises rGO aerogel and Ni distributed in the rGO aerogel. x Co 1‑x Fe2O4 magnetic nanoparticles x The range of values ​​for is 0≤ x ≤1. The preparation method of the dielectric-magnetic synergistic loss type electromagnetic wave absorbing material of the present invention includes the following steps: mixing graphene oxide and Ni x Co 1‑x Fe2O4 magnetic nanoparticles are dispersed in water, then subjected to a hydrothermal reaction, followed by freeze-drying. The dielectric-magnetic synergistic loss-type electromagnetic wave absorbing material of this invention possesses advantages such as low density, small matching thickness, wide absorption bandwidth, high absorption intensity, and flexible adjustment of composition and properties, making it a promising candidate for applications in radar stealth and electromagnetic protection.

The present invention discloses a novel catalytic material MXene / ZnMnO3 and a preparation method thereof. The novel catalytic material MXene / ZnMnO3 is prepared by ball milling, and the zinc manganate in MXene / ZnMnO3 has an irregular particle structure; the ball milling method is used to prepare the MXene material as a carrier, and the perovskite oxide ZnMnO3 is embedded in the interlayer, so that the specific surface area, pore volume and average pore size of ZnMnO3 are significantly improved, and the interlayer spacing can be increased while maintaining the layered structure of the MXene material, the path of ion diffusion and charge transfer is widened, and the electrochemical performance of the MXene material is improved, thereby improving the overall catalytic performance of the catalyst. By comparing the polarization curves, it can be seen that after adding the MXene material, its limiting current density increases significantly, and the ORR performance is greatly improved compared with pure zinc manganate.

The present invention provides a double-spiral threshing and conveying system and a combine harvester, comprising two threshing spaces arranged horizontally and spaced apart in the front and back directions of the harvester, the threshing spaces being hollow cylindrical mounting cavities surrounded by a concave plate screen and a cylinder cover, and a roller being installed in each mounting cavity. Guide members are arranged at intervals on the inner wall surface of the cylinder cover to guide the crops entering the threshing space to move in a directional manner around the axis, the rotation of the cylinder drives the crops to move, and the crops are guided by the guide members to enter the second threshing space from the first threshing space, the working areas of the two threshing spaces are the same length, therefore, the threshing path of the crops passes through the length of the two rollers, and the threshing can be fully performed. The two threshing spaces are arranged horizontally at intervals, so that the structure on the frame is more compact, the lengths of the two threshing working areas are the same, and a sufficiently long threshing path can be ensured, so that the threshing effect is fully guaranteed while ensuring the overall mobility of the harvester.

The invention discloses high-barrier-property polyformaldehyde and a preparation method thereof, and is characterized in that based on high-barrier polymer materials such as polyamide and polyvinyl alcohol which are excellent in barrier property, relatively low in cost and relatively good in compatibility with polyformaldehyde, the high-barrier polymer materials are blended with polyformaldehyde to obtain a polyformaldehyde blending system in which a high-barrier polymer is uniformly dispersed; then blow molding is performed in a temperature range between the melting point of the polyformaldehyde and the melting point of the high-barrier polymer material, and the high-barrier polymer component is subjected to solid-phase stretching orientation in a blowing process to form a microfiber structure to be dispersed in a polyformaldehyde matrix, so that not only can the mechanical strength of the polyformaldehyde film be improved, but also the gas barrier property of the polyformaldehyde film can be remarkably improved; and the application range of the high-strength barrier polyformaldehyde is expanded.

The present invention relates to the technical field of desulfurization devices, and specifically to a sodium-based jet turbulent flue gas energy-saving desulfurization device and method, wherein the desulfurization device comprises a flue gas tower, an auxiliary control mechanism and a driving device; the auxiliary control mechanism comprises a partition frame, a box body and a secondary pipe, the partition frame is arranged in the flue gas tower, a nozzle for spraying medicine is arranged in the first flue and the second flue, the box body is connected to the partition frame, and a valve plate is rotatably arranged on the box body, a secondary pipe and a partition plate are arranged at the bottom of the box body, and the partition frame, the secondary pipe and the partition plate separate the first flue and the second flue in the flue gas tower; the driving device is used to control the rotation of the valve plate; in the working state, the driving device controls the rotation of the valve plate to control the opening and closing of the flue gas from the second flue. The present invention realizes the function of separating the first flue and the second flue of different strokes in the flue gas tower, and solves the problem that the desulfurization efficiency of the traditional desulfurization device is fixed and cannot adapt to different flue gas flows.