311 results about "Surface chemical" patented technology

The invention discloses an INS film with excellent comprehensive performance, which comprises a surface protection layer, an upper base material layer, a printing ink layer, a bonding glue layer and a lower base material layer which are sequentially superposed from top to bottom, the surface protection layer is prepared from the following raw materials in parts by weight: 75-135 parts of polyester polyol resin, 30-60 parts of hydroxy acrylic resin, 2-25 parts of an isocyanate curing agent, 2-17 parts of a closed curing agent, 2-25 parts of a chain extender, 0.5-8 parts of a catalyst, 0.5-2 parts of an antioxidant and 0.5-3 parts of an ultraviolet light absorber. According to the surface protection layer of the INS film, the high-temperature condition of a high-temperature plastic uptake procedure of the INS film in preparation of INS parts is well utilized, so that the closed curing agent is effectively excited to perform secondary cross-linking curing reaction. The INS film is good in surface chemical reagent resistance, has the characteristics of high heat stretch rate, high hardness and scratch resistance, has excellent ultraviolet irradiation yellowing resistance, and is particularly suitable for the field of in-mold decoration.

Systems and methods are provided for etching molybdenum in a wet ALE process. The methods disclosed herein use a wide variety of techniques and wet etch chemistries to oxidize a molybdenum surface and form a self-limiting, molybdenum oxide passivation layer in a surface modification step of the wet ALE process. For example, the methods use: (a) ultra-violet (UV) photolysis of peroxide oxidizers to create oxidizing radicals, which limit oxidation of the molybdenum surface and provide quasi-self-limiting oxidation behavior, (b) steric hinderance of oxidizers having large reactant molecules to achieve better self-limiting oxidation behavior, and / or (c) ligand-assisted oxidation to change the surface chemistry of the molybdenum oxide passivation layer and ensure self-limiting oxidation behavior. After forming the molybdenum oxide passivation layer using one or more of the oxidation techniques disclosed herein, the passivation layer is selectively removed in a dissolution step of the wet ALE process to etch the molybdenum surface.

The invention discloses a preparation method of 3, 4-dihydroxy benzaldehyde / gelatin carbon nanomaterial-based adhesive hydrogel, and belongs to the technical field of hydrogel. According to the invention, 3, 4-dihydroxy benzaldehyde and gelatin are adopted as carbon sources, the synthesized nano-filler has amphiphilic surface characteristics, uniform dispersion of the nano-filler in a hydrogel network can be promoted, meanwhile, a mechanically firm and deformable nano-composite structure is established by utilizing the interaction of multivalent interfaces, and 3, 4-dihydroxy benzaldehyde and gelatin are added into the hydrogel network. The surface chemical property of the 1, 4-dihydroxybenzaldehyde / gelatin nano-filler not only can relieve phase separation, but also can promote synergistic energy dissipation through hydrogen bond reconstruction under the action of stress. According to the design, the inherent flexibility of the hydrogel is reserved, meanwhile, the electromechanical response capacity of the hydrogel is greatly improved, and the obtained hydrogel material has the dual functions of structural supporting and active sensing media and can be seamlessly integrated with biological tissue without sacrificing the fidelity of interface signals.

The invention discloses a preparation method and application of a sensor array based on luminous carbon dots, and relates to the technical field of sensors, the preparation method comprises the following steps: preparing a carbon source which comprises a precursor containing a targeting functional group or a biomolecule derived carbon source, preparing the luminous carbon dots through a chemical synthesis or physical method, modifying the surfaces of the carbon dots, and preparing the sensor array based on the luminous carbon dots. A core-shell structure is added on the surface of a carbon dot by using an in-situ growth method or a layer-by-layer self-assembly method, the carbon dot with the added core-shell structure is fixed on a substrate of a sensor array, and a performance test is carried out. By synthesizing the carbon dots with a targeted recognition function, the selectivity and the sensitivity of the sensor to a target substance can be remarkably improved, and in the synthesis process, the carbon dots can generate specific interaction with the target substance by adjusting factors such as the structure, the shape, the size and the surface chemical property of the carbon dots; therefore, accurate identification of the target substance is realized, and detection of the marker is realized.

The invention belongs to the technical field of metal surface chemical treatment, and particularly relates to a metal surface wear-resistant and corrosion-resistant treatment method and application thereof. The wear-resistant and corrosion-resistant treatment method for the metal surface comprises the following steps: carrying out oil and grease removal pretreatment on the metal surface; preparing a solid catalytic high-pressure nitriding agent; and the metal is placed in a closed vacuum environment, and a solid catalytic high-pressure nitriding agent is injected for nitriding treatment. According to the invention, an in-situ solid-phase reaction is adopted, and the solid catalytic high-pressure nitriding agent with high activity is prepared through the aperture confinement effect of an alumina molecular sieve carrier; sodium chloride is used as a permeating agent dispersing agent, has a space confinement effect, prevents the generated nano oxide to promote the growth of the permeating agent and can keep high catalytic activity, and solid octa-amminestrontium chloride is used as an ammonia-rich nitrogen source, so that the gas generation amount is large at low temperature; the alumina molecular sieve carrier and sodium chloride can be repeatedly used, and cost is reduced. The nitriding agent is applied to wear-resistant and corrosion-resistant treatment of the inner cavity surface of a sea water pump, and the nitriding rate is increased by 50% or above under high-pressure low-temperature nitriding.

Methods, systems, and apparatus, including computer programs encoded on a storage device, for determining characteristics of particles are disclosed. A system includes a conveyor belt, wherein a first section of the conveyor belt comprises one or more mechanisms arranged to create environmental conditions favorable to sensor reading. The system includes a sensor rig located proximate to the first section of the conveyor belt comprising a plurality of different types of sensors. The system includes a controller configured to: obtain measurement data from the plurality of different types of sensors; apply the measurement data to a machine learning model configured to determine surface chemical characteristics of particles given measurement data; and output the surface chemical characteristics of particles from the machine learning model to one or more components along the conveyor belt.

The invention discloses an asymmetric magnetic mesoporous carbon superstructure material as well as a preparation method and application thereof. The preparation method comprises the following steps: (1) preparing Fe3O4amp; a SiO2 alcohol dispersion liquid; (2) preparing Fe3O4 < 4 > amp; the preparation method comprises the following steps: preparing a SiO2 (at) micro single micelle superstructure alcohol solution; (3) preparing Fe3O4 < 4 > amp; a SiO2 (at) C superstructure material; the specific surface area of the material is 87-116 m < 2 > / g, the aperture is 22.8-50 nm, and the length is 330-400 nm. The material is applied to catalytic degradation of organic dyes. The method has the beneficial effects that the surface chemical property is more active, the hydrophilicity and the catalytic degradation capability are stronger, the method is suitable for chemical catalytic degradation, the whole synthesis process is simple and convenient to operate, and intermediate byproducts cannot be generated to cause secondary pollution; in addition, in the dopamine carbonization process, high-temperature carbonization is carried out in nitrogen (inert atmosphere), and the operation is safe; by adjusting the type of the PS-PVP-PEO single micelle, accurate control of the mesoporous size can be realized, so that the PS-PVP-PEO single micelle is suitable for catalytic degradation of organic pollutants with different molecular weights, and selective catalytic degradation is realized.

The invention discloses a production process of activated carbon with efficient adsorption performance, and belongs to the technical field of porous carbon material preparation. The preparation method comprises the following steps: by taking biomass as a raw material, compounding the biomass with a eutectic salt system consisting of zinc chloride and potassium chloride, a nitrogen source precursor and a sacrificial cation source to obtain a homogeneous reaction precursor; the key point is that the precursor is subjected to programmed variable-pressure pyrolysis treatment under the condition that the temperature is far lower than the traditional activation temperature. According to the process, deep infiltration of molten salt is achieved through initial pressurization operation, and then reaction gas is guided to escape orderly through a later programmed pressure reduction process. Through collaborative innovation of the composition and the process, multiple steps of carbonization, activation, pore forming, in-situ functionalization and the like are integrated in a single low-temperature reaction unit, and the technical problems that a traditional method is high in energy consumption and long in flow, and the physical structure and surface chemistry of a material are difficult to synchronously regulate and control are solved.

The embodiment of the invention provides a catalyst activity analysis method and system based on material surface physical and chemical indexes, and relates to the technical field of water treatment. According to the method, a sample data set can be obtained firstly, after the sample data set is divided into a training set and a test set, the training set is used for training a plurality of alternative models, and then a prediction model is selected from the alternative models. And inputting data of a catalyst to be detected into the prediction model to obtain a predicted degradation rate output by the prediction model. Wherein the sample data set comprises surface physical property parameters such as pore depth gray difference of the catalyst and surface chemical property parameters such as functional group peak height ratio. According to the method, alternative model training can be carried out through Bayesian optimization, a prediction model is selected by combining evaluation indexes obtained by calculation of a test set, and a machine learning process can be enhanced by utilizing multi-mode fusion data in an environment of small sample machine learning data volume, so that the prediction precision and generalization ability of catalyst activity analysis are improved.

The invention relates to the technical field of silica powder surface modification, in particular to a novel silica powder surface modification method and application of a composite material of the novel silica powder surface modification method. Silica powder surface modification comprises the steps that silica powder is subjected to surface chemical modification through a titanate coupling agent, active functional groups are introduced, and the interface bonding force between the silica powder and MXene is enhanced; high-quality preparation of MXene: etching an MAX phase by adopting hydrofluoric acid (HF) or lithium fluoride / hydrochloric acid (LiF / HCl), and obtaining few layers of MXene nanosheets through ultrasonic stripping to ensure high conductivity and large specific surface area; the modified silica powder and MXene dispersion liquid are uniformly mixed, MXene stacking is inhibited, the specific surface area is increased, and the ion transmission efficiency is improved; mXene nanosheets grow on the surface of the silica powder in situ to form a core-shell structure, so that the interface bonding strength and the mechanical property are enhanced; the composite material is applied to the fields of electromagnetic shielding, energy storage, flexible electronics and the like.

The invention discloses a nanopore filtering and separating medium as well as a preparation method and application thereof, a polymer-based nanopore medium with accurate pore size distribution is constructed through a template-induced self-assembly technology, and efficient interception of milk fat components and selective permeation of whey protein are realized in combination with a surface functionalization modification strategy. Based on a size screening and electrostatic repulsion synergistic mechanism, milk fat enrichment and milk protein purification are synchronously completed under mild operation conditions, and energy consumption and component loss in a traditional process are remarkably reduced. And the long-term operation stability is maintained by regulating and controlling the structure parameters and surface chemical characteristics of the nano-pore channel. The technology provides an innovative solution for developing high-purity buffalo milk fat products and defatted buffalo milk products.

The invention relates to the technical field of environmental waste treatment, and discloses a preparation method of modified household garbage incineration fly ash, the modified household garbage incineration fly ash comprises the following components by mass: 90-99 parts of a fly ash matrix; 0.1 to 2 parts of a plasma activation layer; 0.5 to 8 parts of a silicon oxide coating layer; the preparation method comprises the following steps: pretreating the fly ash; performing plasma activation; preparing a mineralizing solution; performing biomimetic mineralization; and calcining at low temperature. The plasma activation layer is introduced, the silicon oxide coating layer is constructed, and the phosphorus oxide or the boron oxide is cooperatively introduced, so that the microstructure and the surface chemical property of the material are effectively optimized, the specific surface area and the pore volume of the material are increased, and a microporous, mesoporous and macropore synergistic multistage pore channel structure is constructed; the adsorption capacity and the adsorption rate of various waste gas pollutants are improved.

The application discloses a preparation method and application of nitrogen-doped oxygen-rich hierarchical porous carbon, and adopts a one-step co-activation method to prepare the nitrogen-doped oxygen-rich hierarchical porous carbon, which is simple in process and low in energy consumption. The structure and surface chemical performance of the prepared nitrogen-doped oxygen-rich hierarchical porous carbon catalyst are easy to control. The prepared TNS-X material has a large specific surface area and a developed pore structure, which is beneficial to exposure of catalytic sites and diffusion of reactants. Through ammonia and water vapor co-activation, efficient doping of nitrogen atoms and oxygen atoms is realized, the number of catalytic sites is increased, and the catalytic activity is improved. The TNS-800 material exhibits high catalytic performance in a peroxymonosulfate (PMS) activation process, and can completely remove organic pollutants such as acetylaminophenol in a short time.

The invention discloses a multicolor fluorescence emission lignin-based carbon dot as well as a preparation method and application thereof. The preparation method of the multicolor fluorescence emission lignin-based carbon dots comprises the following steps: (1) adding lignin and organic acid into water, and carrying out microwave treatment to obtain carbon dots A; (2) adding the carbon dots A and an oxidizing agent into water for oxidation reaction to obtain carbon dots B; (3) adding the B carbon dots into water, and then adding an alcohol compound and an acid catalyst for esterification reaction to obtain C carbon dots; (4) adding the C carbon dots and a reducing agent into water according to a ratio, and carrying out a reduction reaction to obtain D carbon dots; and (5) adding the D carbon dots and a basic catalyst into water, and carrying out a basic hydrolysis reaction to obtain the multicolor fluorescence emission lignin-based carbon dots. According to the invention, microwave digestion treatment is cooperated with a surface chemical group regulation method, and the prepared lignin-based carbon dots can realize blue, green, yellow and red fluorescence emission.

The invention provides a diamond / metal connector and a brazing method thereof based on femtosecond laser modification, and relates to the technical field of material processing and connection.The method for brazing diamond and metal based on femtosecond laser modification comprises the steps that femtosecond laser is adopted to conduct scanning treatment on the surface of diamond, so that a graphite layer is formed on the surface of the diamond; performing magnetron sputtering of active elements on the surface of the graphite layer to deposit an active layer; and vacuum heat treatment is conducted at the temperature of 500-800 DEG C, and then the diamond and the metal are brazed. Due to the ultra-short pulse and ultra-high peak power characteristics of the femtosecond laser, non-hot-melting accurate etching of the diamond surface can be achieved, sp3 carbon is induced to be converted into sp2 graphite phase, a nano-graphite transition layer is controllably formed, the surface chemical activity is remarkably improved, the chemical bonding strength of an active element layer and the diamond is remarkably enhanced, and the service life of the diamond is prolonged. And the active element reacts with the nano-graphite layer to generate a continuous active element-C compound, so that strong metallurgical bonding is realized.

The invention discloses a preparation method of a high-strength corrosion-resistant copper alloy wire. The preparation method comprises the following steps: (1) preparing composite powder; (2) preparing pretreatment powder; (3) sensitization treatment and activation are carried out, surface chemical copper plating is carried out on the activated powder, and copper plating powder is obtained; (4) weighing copper powder, nickel powder, silicon powder and copper-plated powder, heating and melting, adding the copper-plated powder into the melt, casting and molding, heating to eliminate stress, cooling, and drawing into a copper alloy wire by using a wire drawing machine; and the copper alloy wire is subjected to heat preservation for 30 min at the temperature of 220 DEG C, then the temperature is increased to 300 DEG C, heat preservation aging is conducted for 3 h, furnace cooling is conducted to 200 DEG C or below after heat preservation is completed, then the copper alloy wire is taken out and subjected to air cooling to the normal temperature, and the high-strength corrosion-resistant copper alloy wire is obtained. The copper alloy casting prepared through the method has high tensile strength, and the prepared copper alloy wire is high in self-corrosion potential and shows good strength and corrosion resistance.

The invention belongs to the technical field of aluminum electrolysis inert anode materials, and particularly relates to a surface target-free activation process and a surface chemical plating process of ferronickel spinel powder. The surface target-free activation process of the ferronickel spinel powder comprises the following steps: carrying out reaction on NiFe2O4 powder, nickel salt and hydroxide in a solvent to form a colloidal solution, carrying out solid-liquid separation, and drying to obtain Ni (OH) 2-coated NiFe2O4 powder; and calcining the obtained Ni (OH) 2-coated NiFe2O4 powder to obtain NiO-coated NiFe2O4 powder, and then carrying out a reduction reaction to obtain NiFe2O4 particles with nano Ni particles distributed on the surfaces of the NiO-coated NiFe2O4 powder. Nanoscale active Ni particles are formed on the surfaces of NiFe2O4 particles through a chemical bath precipitation method, calcination and reduction, replace palladium to become a surface activation center and are uniformly distributed, and a continuous and complete metal coating can be formed on the surface of powder during chemical plating.

The application provides a solid super-smooth surface and a construction method and application thereof, and relates to the technical field of marine antifouling. The solid super-smooth surface constructed by the application is composed of linear polyfluorosiloxane, the linear polyfluorosiloxane is combined with a substrate through a chemical covalent bond, the chemical covalent bond is firm, the problem that traditional biomimetic super-smooth surface lubricating oil is prone to loss in an underwater environment is solved, and the solid super-smooth surface has a longer performance of preventing and treating biological fouling. The solid super-smooth surface provided by the application has a linear structure and reliable underwater transparency, and the underwater visible light transmittance of the material can reach more than 95%.

The invention relates to the technical field of lithium ion battery materials, discloses a preparation process and application of a nano silicon-carbon composite graphite material, and provides a preparation process for solving the problem: carrying out oxidation and surface chemical modification on silicon particles to construct a stable chemical bonding interface to resist mechanical stress; on the basis of primary carbon coating, graphene and carbon nanotubes are introduced to construct a multi-stage conductive carbon network with point, line and surface combination, so that efficient and stable electron transmission is ensured; a uniform inorganic protective coating is accurately coated on the surface of the composite material through in-situ chemical reaction so as to shield chemical side reaction. The material prepared by the invention shows excellent performance: the powder conductivity of the material reaches up to 21.5 S / cm, which is far beyond that of a conventional conductive agent scheme; the coulombic efficiency is improved to 92.3% for the first time; and after 500 cycles at the multiplying power of 0.5 C, the capacity retention ratio still reaches up to 85.3%, and the comprehensive electrochemical performance of the material is improved.

The present invention discloses a biodegradable molybdenum-based flow diverter and a preparation method thereof, wherein the preparation method comprises the following steps: step 1. pretreatment of a molybdenum wire: cleaning and drying the molybdenum wire, and then weaving to obtain the molybdenum-based flow diverter; step 2. performing heat treatment on the molybdenum-based flow diverter in the step 1; and step 3. performing surface chemical polishing treatment on the molybdenum-based flow diverter subjected to the heat treatment in the step 2. The present invention solves the technical problem that the flow diverter in the prior art cannot be degraded in vivo and therefore easily causing various complications. It provides also improved mechanical property, MRI magnetic resonance imaging (MRI) compatibility as well as biocompatibility, and particularly has the function of promoting rapid endothelialization, compared with other degradable materials.

The present invention discloses a preparation method of modified white corundum powder and its application in ceramic shell surface materials, belonging to the technical field of precision casting auxiliary materials. The present invention first performs surface modification and structural modification on white corundum powder to obtain modified white corundum powder with low reactivity, and uses it as the main raw material for ceramic shell surface materials. By adding pre-sintered composite oxides and metal oxide powders containing trace elements in the alloy components to the modified white corundum powder, the wetting angle of the alloy on the shell surface is greatly improved, and the chemical reaction rate and ion migration probability between the alloy and the shell surface are reduced, thereby achieving the purpose of reducing sand adhesion on the surface of cast alloy blades. The raw material modification method disclosed in the present invention, as well as the multi-angle and all-round shell surface material formula, can effectively reduce the probability of chemical reactions on the blade surface, improve the qualified rate of blade casting, and provide a feasible solution to the problem of surface chemical sand adhesion during blade casting.

The present application relates to the technical field of marine antifouling, and provides a solid-state super-smooth surface, and a construction method therefor and the use thereof. The chemical composition of the solid-state super-smooth surface constructed in the present application is a linear polyfluorosiloxane, which bonds with substrates by means of chemical covalent bonds. By means of firm bonding via chemical covalent bonds, the problem of a traditional biomimetic lubricating oil for super-smooth surfaces being easily washed away in underwater environments is solved, and longer lasting biofouling control performance can be achieved. The solid-state super-smooth surface provided by the present application is of a linear structure and has reliable underwater transparency, the underwater visible-light transmittance of the material being up to 95% or higher.

A method includes performing a chemical mechanical polishing (CMP) process on a wafer in a CMP apparatus, loading the wafer into a roll cleaning apparatus after performing the CMP process on the wafer, applying a fluid on a surface of the wafer; brushing the surface of the wafer with a rotating roll brush, and measuring a distribution of the fluid on the surface of the wafer while brushing the surface of the wafer.

The invention belongs to the technical field of materials, and particularly relates to a GaO-coated Mo2C MXene surface chemical adsorption type heterojunction composite material and a preparation method and application thereof. The preparation method comprises the following steps: (1) adding Mo2Ga2C powder into an NH4Cl solution, uniformly mixing, and transferring to a reaction container; (2) hydrothermal reaction; the temperature of the hydrothermal reaction is 200 to 220 DEG C; and (3) after the hydrothermal reaction is finished, carrying out solid-liquid separation, washing and drying to obtain the GaO (at) Mo2C MXene surface chemical adsorption type heterojunction composite material. According to the preparation method disclosed by the invention, synchronous preparation and stable chemical adsorption combination of GaO zero-dimensional particles and Mo2C MXene can be realized; according to the preparation method disclosed by the invention, the preparation process is remarkably simplified, the preparation period is shortened, the production cost is reduced, and the lithium storage performance of the heterojunction is favorably improved.

Methods disclosed herein relate to generating silk nanoparticles with a low polydispersity index (PDI). Methods include adding a silk solution dropwise into a volatile solvent that is miscible with water, thereby forming a precipitate-bearing solution and applying shear forces to the precipitate-bearing solution for a length of time sufficient to achieve evaporation of at least 95% of the volatile solvent, thereby producing a population of silk fibroin nanoparticles in water having a polydispersity index (PDI) of 0.35 or less, including but not limited to, a PDI of 0.330 or less, 0.325 or less, 0.315 or less, 0.310 or less, 0.30 or less, 0.275 or less, 0.250 or less, 0.225 or less, or 0.200 or less. Parameters related to silk fibroin molecular weight, silk fibroin concentration, shear force application, and temperature may all be modified to achieve silk nanoparticles of a particular size exhibiting particular PDIs.

The application discloses a kind of high-performance tin copper composite conductive paste and preparation method thereof, belong to electronic material technical field.The conductive paste is by tin copper composite powder 60-85%, tin alloy powder 3-12%, organic carrier 10-25%, functional additive 1-5% by mass percentage;Wherein the tin copper composite powder is the surface chemical tin copper powder of three-stage particle size gradient compounding, the tin alloy powder is the gradient melting point alloy powder that Sn58Bi, Sn3.5Ag, Sn0.7Cu are proportionally compounded.The application is synergistically designed by multistage particle size powder and gradient melting alloy, and dense metallurgical bonding conductive network can be formed at low temperature, and the core pain points of existing copper-based conductive paste, such as easy oxidation, high sintering temperature, insufficient conductivity, poor printing stability, are solved.The prepared paste has high conductivity, excellent oxidation resistance, low sintering temperature, good printing suitability and strong adhesion, and can be widely applied in integrated circuit packaging, flexible electronics, solar cells and other fields.

The invention discloses a thermal forming preparation method of a carburizing part and a thermal forming carburizing part, belongs to the technical field of metal material surface chemical heat treatment strengthening, and solves the problems that surface carburizing heat treatment of a traditional part needs extremely long in-furnace diffusion time, the production efficiency is relatively low and the energy consumption is high. The preparation method comprises the steps that carburizing steel is subjected to preforming treatment through a hot working method, and a part blank is obtained; performing cold rough machining on the part blank; the part blank is subjected to carburizing treatment, and a carburized layer with the depth larger than 2 mm is obtained; the discharged part blank is subjected to die forging precision forming and subsequent heat treatment, and a thermally-formed carburized part is obtained; and the thermal forming carburizing part is subjected to accurate grinding machining, and the target size is achieved. The method can be used for heavy-duty gears, shafts, bearings and other parts needing deep carburized layers.

The invention relates to the technical field of ground maintenance, and discloses a stadium ground rapid repairing method, which comprises the steps of in-vivo damage diagnosis and microenvironment analysis, and obtaining a three-dimensional physical damage model and a surface chemical microenvironment model of a to-be-repaired area; dynamically generating a customized repair material formula based on the model; executing self-calibration droplet jetting and photopolymerization dynamics regulation and control repair; and carrying out in-situ multi-modal quality verification after repairing. Wherein in the repairing execution step, closed-loop self-calibration of material components is achieved through spectrum verification in the process, and photopolymerization dynamics is regulated and controlled in a self-adaptive mode according to a surface chemical microenvironment model so as to overcome the field inhibition effect. The invention also provides a system for executing the process. According to the invention, the dynamic adjustment of the repair strategy and the whole-process closed-loop quality control can be realized according to the specific condition of the damage point, and the reliability, consistency and efficiency of the repair are obviously improved.

The utility model relates to the technical field of aluminum-plastic composite panel film forming, in particular to an aluminum-plastic composite panel surface chemical film forming device which comprises a working table, two film rolling frames are fixedly connected to the surface of the working table, a placing plate is fixedly connected to the surface of the working table, a limiting frame is fixedly connected to the surface of the working table, and the limiting frame is fixedly connected to the surface of the working table. The surface chemical film forming device comprises a workbench, a film pressing device is installed on the surface of the workbench, a cleaning device is arranged on the surface of the workbench, the cleaning device comprises two telescopic rods, the two telescopic rods are both in sliding connection with the upper surface of the workbench, and the upper surfaces of the two telescopic rods are both fixedly connected with connecting plates. By arranging the cleaning device, dirt on the surface of the aluminum-plastic composite panel can be quickly adhered and cleaned when the protective film is mounted on the aluminum-plastic composite panel, so that the adhering effect of the protective film cannot be affected by the dirt when the protective film is mounted, the protective film cannot be damaged, and the mounting quality of the protective film is improved.

According to the dynamic environment regulation and control detection device and method for the urban external nitrogen oxide absorption coating, the absorption effect of the coating on nitrogen oxide in the environment is systematically analyzed through multi-dimensional dynamic environment simulation and surface chemical in-situ analysis. According to the invention, a spectrum-pollutant-mechanical stress synergistic effect dynamic simulation system is constructed, and a spectrum-adjustable LED array, a NOx pulse injection module and a temperature and humidity-wind speed composite cavity are adopted, so that coupling simulation of dynamic adjustment of ultraviolet intensity, pollutant pulse input and rapid switching of temperature and humidity is realized; a surface adsorption state real-time monitoring technology is innovatively introduced, the characteristic peak intensity ratio of nitrate to nitrite is analyzed through a micro FTIR probe, and a coating layer micropore blockage early warning mechanism is established.