319 results about "Active group" patented technology

The invention relates to the technical field of foaming materials, in particular to a shoe material preparation process for finished shoes based on supercritical physical foaming and the finished shoes. The preparation method comprises the following steps: 1) weighing a matrix, octadecyl polyhedral oligomeric silsesquioxane, an active group-containing styrene-acrylonitrile copolymer, a polydimethylsiloxane block copolymer, an epoxy functional group-containing olefin copolymer, a nano silicon dioxide dispersion and a processing aid, uniformly mixing, blending, extruding, granulating and drying to obtain a blended material, wherein the matrix, the octadecyl polyhedral oligomeric silsesquioxane, the active group-containing styrene-acrylonitrile copolymer, the polydimethylsiloxane block copolymer, the epoxy functional group-containing olefin copolymer, the nano silicon dioxide dispersion and the processing aid are mixed uniformly; the preparation method comprises the following steps of (1) preparing a polymer, (2) plasticizing the blended material to form a preformed blank, injecting supercritical gas, and fully dissolving the supercritical fluid in the polymer at the temperature of 150-180 DEG C and the pressure of 10-20MPa for 1-3 hours, (3) reducing the pressure to normal pressure within 10 seconds at the pressure reduction rate of less than or equal to 2MPa / s, and (4) cooling and shaping at the temperature of 60-80 DEG C to obtain the shoe material.

This invention discloses a method for synergistic surface modification of tungsten-copper powder to inhibit the decomposition of polyoxymethylene (POM), belonging to the field of polymer material anti-degradation modification technology. This invention addresses the problem that tungsten-copper powder easily catalyzes the severe degradation of POM during PIM tungsten-copper feedstock mixing and injection molding, leading to poor feedstock flowability, injection instability, large fluctuations in product size and weight, and low yield. First, the tungsten-copper powder is activated by low-temperature plasma etching to construct a reaction interface. Then, a silica barrier film is prepared using tetraethyl orthosilicate as the silicon source and modified with fluorosilicone, loaded with a metal soap neutralizer, grafted with a hindered phenolic antioxidant, and simultaneously introduced with epoxy active groups to construct a multi-component synergistic degradation inhibition system. This invention, through multi-step synergistic modification, precisely controls the modification process, comprehensively inhibiting POM decomposition. When the modified powder is blended with POM, a capping reaction occurs, blocking the unzipping degradation pathway of POM, improving the compatibility of the filler and the matrix, and ensuring the continuous and stable preparation and injection molding of PIM tungsten-copper feedstock.

The invention provides an addition type organic silicon pressure-sensitive adhesive composition and an addition type organic silicon pressure-sensitive adhesive product. The composition comprises methyl vinyl polysiloxane; a methyl MQ silicone resin; a hydrogen-containing silicone oil crosslinking agent; a release force enhancer; an inhibitor; a solvent; the stripping force reinforcing agent is a double-bond compound containing hydroxyl or alkoxy silane. According to the invention, a double-bond compound containing hydroxyl or alkoxy silane is used as a stripping force reinforcing agent of the addition type organic silicon pressure-sensitive adhesive, and active groups such as hydroxyl and alkoxy silane can be bonded with an adhered object through hydrogen-bond interaction or hydrolytic condensation, so that the stripping strength of the pressure-sensitive adhesive on the adhered object is enhanced; wherein the double bonds can enable the stripping force enhancer to be combined in the pressure-sensitive adhesive through covalent bonds, so that the precipitation of small molecules is greatly reduced, and the stability of the stripping force can be effectively improved. Experimental results show that the stripping force of the pressure-sensitive adhesive on a steel plate can reach 2192 g / inch, and the stripping force is still kept at 2146 g / inch after the pressure-sensitive adhesive is aged for 14 days.

The invention provides an alcohol insect pheromone derivative, which takes a compound containing at least one active group such as carboxyl and amido as a carrier, and alcohol insect pheromone forms derivatives such as ester derivatives and anhydride derivatives with the compound through chemical reaction. The invention also provides a preparation method, application and a release method of the alcohol insect pheromone derivative. According to the alcohol insect pheromone derivative, alcohol insect pheromone is treated in a chemical reaction mode, the stability of the alcohol insect pheromone can be remarkably improved, slow release and controlled release of the pheromone can be achieved, the carrier material is wide in source, multiple in selectivity, convenient to use and economical, and in addition, the alcohol insect pheromone derivative can be used for preparing the alcohol insect pheromone derivative. The alcohol insect pheromone derivative provided by the invention can also realize combined release of various pheromones, so that trapping, prevention and control of various insects can be realized.

The invention discloses a bisazo blue reactive dye for high-temperature dip dyeing as well as a preparation method and application of the bisazo blue reactive dye. The reactive dye is shown in a structural general formula (I). A color body of the reactive dye is of a bisazo structure, the color body contains two naphthalene ring structures and a benzene ring structure, and an active group in a dye molecular structure is quaternary ammonium salt containing a nicotinic acid structure. According to the present invention, the binding force between the dye and the fiber can be improved through the coplanarity of the chromophore molecules, the dissociation between the dye and the fiber at the high temperature can be reduced, and the dye uptake of the dye at the high temperature can be improved, such that the fixation rate between the dye and the fiber can be improved; meanwhile, quaternary ammonium salt containing a nicotinic acid structure can react with fibers under the high-temperature neutral condition, an alkaline agent does not need to be added in the whole dyeing process, the problem of environmental pollution caused by the alkaline agent in the printing and dyeing wastewater is solved, and wide application prospects are achieved.

The invention provides a hot-pressing strippable coating composition with a Fresnel lens effect. The hot-pressing strippable coating composition comprises the following components in parts by weight: 20-50 parts of polyurethane resin with active groups; 2-6 parts of solid acrylic resin; 1-3 parts of cellulose ester resin; 1-5 parts of a latent curing agent; 0-0.3 part of an auxiliary agent; 40 to 60 parts of a solvent; wherein the glass transition temperature (Tg) of the polyurethane resin with the active groups is 25 to 50 DEG C. The method has the beneficial effects that the system provided by the invention is high in practicability, simple and easy to operate. And the introduced low-Tg (25-50 DEG C) polyurethane resin with active groups can easily reach a softening point during hot pressing, has excellent flowability, can well fill a fine grating of a Fresnel lens, and has a full replication effect. The polyurethane resin is matched with a latent curing agent and is stable at normal temperature; and when the hot-pressing temperature threshold value is reached, a cross-linking reaction is initiated. The mechanism improves the temperature-resistant effect of the system, and solves the problems that low-Tg resin is easy to stick and reverse light in the later period.

The invention discloses a miniature insulin pump and system suitable for children and active groups, and belongs to the technical field of insulin pumps, the miniature insulin pump comprises an insulin pump body, and the two ends of the insulin pump body are connected with watchbands used for being worn by the children and the active groups; the insulin pump body comprises a shell, the interior of the shell comprises a cavity layer, a power storage layer and a control layer, the cavity layer is used for containing an injection hose and an injection needle which are sealed after disinfection, and the power storage layer comprises an insulin storage bin, a power bin and an electric power bin which are sequentially arranged; a control circuit board is arranged in the control layer; isolation absorption structures for absorbing leaked insulin are arranged between the layers and between the bins; the insulin storage tank and the micro infusion pump are connected through a magnetic suction circulation connector structure, and the micro infusion pump and the injection hose are connected through a magnetic suction circulation connector structure. The problems that an existing insulin pump is not designed for children and active groups, so that the carrying adaptability is poor, and the liquid leakage risk is high can be solved.

The invention discloses a thin infrared high-reflection mirror and a preparation method thereof, and belongs to the technical field of optical devices. The preparation method comprises the following steps: depositing a Ni-Ti alloy film on a heated Ti alloy substrate in a deposition atmosphere in which Ar gas and a small amount of NH3 gas are introduced by adopting a radio frequency magnetron co-sputtering process and taking a Ti target and a Ni target as sources; the Ni target sputtering power is increased in a stepped mode, so that the Ni content in the film layer is gradually increased from the interface to the surface, and a component gradient structure is formed; and carrying out vacuum annealing and polishing treatment after deposition. Through the etching effect of the NH3 active group and the component gradient structure design, the internal stress of the film layer is synergistically reduced, the density and the interface bonding force are improved, and the obtained reflector has the advantages of moderate film layer thickness, firm bonding, high surface quality and easy processing, and is suitable for light-weight and high-performance infrared optical systems in the fields of aerospace and the like.

This invention provides a peelable coating composition for achieving a Fresnel lens effect through heat pressing, comprising the following components in parts by weight: 20-50 parts of polyurethane resin with active groups; 2-6 parts of solid acrylic resin; 1-3 parts of cellulose ester resin; 1-5 parts of latent curing agent; 0-0.3 parts of additives; and 40-60 parts of solvent; wherein the glass transition temperature (Tg) of the polyurethane resin with active groups is 25-50°C. The advantages of this invention are: the system provided by this invention is highly practical and easy to operate. The low Tg (25-50°C) polyurethane resin with active groups introduced easily reaches its softening point during hot pressing, exhibiting excellent fluidity and effectively filling the fine gratings of the Fresnel lens, resulting in a full replication effect. This polyurethane resin, combined with the latent curing agent, is stable at room temperature; when the hot pressing temperature threshold is reached, a cross-linking reaction is initiated. This mechanism improves the system's temperature resistance and solves the problems of easy adhesion and reflection of low Tg resins in the later stages.

The application discloses a kind of areca alkaloid artificial hapten, artificial antigen and its preparation method and application, with norarecoline hydrochloride as the starting material for synthesizing artificial hapten.This areca alkaloid artificial hapten retains the characteristic structure of areca alkaloid to the greatest extent, and has active groups that can couple with carrier proteins, which can be used as antigenic determinants;Further, the areca alkaloid artificial antigen obtained can be used to immunize to obtain an anti-areca alkaloid artificial antibody with high affinity, high sensitivity and strong specificity.The titer of the immune serum obtained by immunizing New Zealand white rabbits is as high as 1:70000, and can be used for rapid and accurate immunodetection and immunoassay of areca alkaloid.

This invention discloses a silicon-based anode binder for lithium-ion batteries and its preparation method, relating to the field of silicon-based anode technology. The method includes first ring-opening sulfonation of polyetheramine with 1,3-propanesulfonyl lactone in an aqueous phase to obtain sulfonated polyetheramine; then, polyacrylic acid is activated by EDC·HCl and NHS and then amidated and grafted onto the sulfonated polyetheramine to obtain sulfonated polyetheramine-grafted polyacrylic acid; finally, the aqueous solution of this graft is in-situ coordinated with 2-methylimidazole and zinc nitrate to generate ZIF-8 nanoparticles, and then succinic acid and choline chloride are added for regulation to obtain the binder. This invention achieves dual modification through molecular grafting of flexible sulfonated polyether segments and in-situ construction of a three-dimensional ZIF-8 conductive network, utilizing succinic acid and choline chloride to eliminate competitive coordination of active groups, significantly improving ionic conductivity and stabilizing the electrode structure.

The invention discloses a method for predicting the maximum fluidity of coal as fired by using the content of fatty hydrogen, and belongs to the technical field of coal coking. According to the method, the fat hydrogen content of the coal as fired is measured and analyzed, and the correlation model between the fat hydrogen content and the maximum fluidity is established, so that accurate prediction of the maximum fluidity of the coal as fired is realized; according to the method, the fat hydrogen content is used as a key index for predicting the maximum fluidity, and the limitation of the traditional method depending on indexes such as the maximum thickness Y value and the caking index G of a gelatinous layer is broken through; the fatty hydrogen content can more directly reflect the condition of active groups in a coal molecular structure, and is closely related to the caking property of the coal, so that the prediction result is more accurate and reliable; the problems that an existing method for predicting the maximum fluidity of coal as fired is complex in operation and large in error are solved.

The invention relates to a protein composite fiber after-finishing method and application thereof. The preparation method comprises the following steps: firstly, carrying out pretreatment such as cleaning and drying on protein composite fibers, and then mixing the protein composite fibers with a tannin-containing cross-linking solution to carry out primary cross-linking so as to construct a stable cross-linked network; soaking the protein composite fiber in a metal ion solution for secondary coordination crosslinking, and sequentially performing oiling, high-temperature setting and the like to finally obtain a protein composite fiber finished product with excellent heat resistance, mechanical property and high protein retention rate. The problems that fibrous protein components are prone to loss, traditional aldehyde or metal phosphorus cross-linking agents are toxic and harmful and the like are solved, the comprehensive performance of the protein composite fiber is remarkably improved through a specific cross-linking reaction between polyphenol structures in tannin of different sources and active groups of the fiber and a chelation coordination reaction of metal ions, and the protein composite fiber has the advantages of being high in practicability and wide in application prospect. The method can be applied to multiple fields such as high-end spinning and medical hygienic materials.

The application discloses a short-process printing process of polyester-cotton blended fabric, which comprises screen printing by using active disperse dyes containing double active groups and steaming by using alcohol vapor; the double active groups include hydroxyethyl sulfone sulfate group and CH2CH(OH)CH2X (X is Br or Cl); the CH2CH(OH)CH2X can be converted into an epoxy group under alkaline conditions and can react with the alcohol vapor during the steaming process to realize the cross-linking between dye molecules, so that the effects of improving the fixation efficiency and shortening the process flow are achieved, and then the printed fabric with high color depth and high color fastness is obtained.

The application relates to the technical field of organic dyes, in particular to a double-active-group cationic modified anthraquinone reactive dye as well as a preparation method and application thereof. The preparation method of the double-active-group cationic modified anthraquinone reactive dye comprises the following steps: S1: dissolving 1-amino-4-sulfonic acid-1'-(N,N-dimethylpropylaminomethyl) anthraquinone in ice water, then adding melamine dropwise to carry out reaction, and obtaining an intermediate solution; S2: the intermediate solution is warmed to 20-25 DEG C, and hydroxyethyl sulfone sulfonate is added to carry out reaction; after the reaction is completed, salting-out is carried out, and the double-active-group cationic modified anthraquinone reactive dye is obtained, as shown in formula (1). The reactive dye is synergized through the cooperation of "double active groups + cationic adjustment + precise water-solubility design", can guarantee water-solubility and dyeing fastness, and can completely get rid of the dependence on a large amount of salt.

The present application relates to the field of shoe leather production, and particularly relates to a production process of fluorine-free dynamic waterproof suede shoe leather. First, the suede microfiber base leather is soaked in a composite biological enzyme preparation to remove surface impurities and open the fiber gap, and then is treated by helium-oxygen mixed gas normal pressure plasma to build micro-pits and active groups on the fiber surface. Subsequently, the base leather is sequentially soaked in waterproof agents containing various modified substances, and a two-stage gradient temperature and pressure padding process is adopted to realize the gradient distribution and crosslinking of the waterproof agent from inside to outside. Finally, a three-stage temperature oscillation drying is adopted, the crosslinking reaction is triggered in the medium temperature section, the siloxane chain is induced to directional arrangement to form a stress buffer layer in the high temperature section combined with mechanical oscillation, and the finished product is obtained through low temperature polishing and setting. The process completely avoids fluorine-containing compounds, solves the problem of easy cracking of traditional waterproof leather in dynamic bending, and maintains the softness of suede. The process is suitable for high-end shoe materials, outdoor equipment and other fields.

This invention relates to the field of batteries, specifically to an anti-deformation negative electrode binder and its preparation method. It solves the problem that existing negative electrode binders have poor anti-deformation capabilities, leading to structural collapse, rapid capacity decay, and shortened cycle life after long-term cycling. This anti-deformation negative electrode binder uses a binder base material as the main raw material. The binder base material contains multiple active groups that can adsorb and bind to the negative electrode components, achieving tight adhesion and effectively preventing excessive expansion of the negative electrode components. Adding a polyfluorinated organic framework further enhances its electrochemical performance and chemical stability, improving the expansion suppression effect of the negative electrode components and ultimately enhancing the anti-deformation capability of the negative electrode sheet, significantly improving its cycle performance and service life.

This method for producing an activated branched polyethylene glycol derivative having an active group at a terminal has a step (a), a step (b), and a step (c). The step (a) is a reaction step in which a branched polyethylene glycol raw material and an activating agent are reacted to obtain an activated polyethylene glycol derivative, the step (b) is a purification step in which impurities in the activated polyethylene glycol derivative obtained in the reaction step (a) are removed, and the step (c) is a drying step in which the activated polyethylene glycol derivative obtained after the purification step (b) is dried using a dry gas to obtain an activated branched polyethylene glycol derivative having a moisture content of 0.001 mass% to 0.3 mass%.

To obtain an activated polyethylene glycol having a high terminal activation rate by reacting a raw material polyethylene glycol having a carboxy group at the terminal with an activating reagent having an amino group at the terminal.SOLUTION: The method includes a step of reacting a raw material polyethylene glycol having a carboxy group with a compound having an active group and an amino group using a condensing agent to obtain a reaction product containing an activated polyethylene glycol having an active group at the terminal, wherein the terminal activation rate in the reaction product analyzed by ion exchange chromatography is 95 wt.% or more.SELECTED DRAWING: None

The application relates to the electrolysis field and discloses a catalyst-coated membrane assembly manufacturing method and an electrolysis module, wherein the catalyst-coated membrane assembly manufacturing method comprises the following steps: activating the surface of a proton exchange membrane, so that the surface of the proton exchange membrane is formed with first active groups; modifying catalyst slurry, so that the catalyst slurry is formed with second active groups, the second active groups are complementary to the first active groups; transferring the modified catalyst slurry from a transfer film to the two sides of the activated proton exchange membrane, and forming an anode catalyst layer and a cathode catalyst layer on the two sides of the proton exchange membrane respectively. The application realizes the close combination of catalyst active sites and mass transfer channels, greatly reduces the interface impedance, enables higher current density under the same working voltage, significantly improves the utilization rate of the catalyst, greatly improves the hydrogen production rate of the formed electrolysis module, and shortens the waiting time required for reaching the target hydrogen concentration in the civil hydrogen production scene.

The present application relates to the technical field of mineral processing, and particularly relates to a modified dodecylamine collector, a preparation method and application thereof.The preparation method of the modified dodecylamine collector provided by the present application comprises the following steps: carrying out glow discharge air plasma treatment on dodecylamine by taking air as a working gas.The present application introduces oxygen-containing and / or nitrogen-containing active groups on the surface of dodecylamine molecules by means of glow discharge air plasma modification of dodecylamine, and the dodecylamine is used for flotation separation of quartz and hematite, so that the adsorption capacity and selectivity of the dodecylamine to quartz, especially fine quartz, are enhanced, and efficient separation of quartz and hematite can be realized at a lower dosage; and the raw material of the preparation method is green and environmentally friendly, the modification process is low-temperature, safe and controllable, no by-product is generated, and the energy consumption is low.

This invention discloses a nitrogen-sulfur co-doped multi-chamber carbon-supported copper nanocluster composite material and its preparation method. By integrating polyether F127, 2,6-diaminopyridine, sodium dodecylbenzenesulfonate, fulvic acid, and copper acetate (II), a semi-open and surface-fully embedded copper cluster multi-chamber carbon was successfully constructed. The surface of this multi-chamber carbon is rich in -NH2 and -SO3. ‑ With abundant active groups, it not only boasts a large specific surface area and ample adsorption sites, but also exhibits excellent anti-interference and wide pH adaptability. As an environmentally friendly material, it can simultaneously and efficiently adsorb and remove Cu²⁺ from electroplating wastewater. + Ni² + Pb² + Cd² + It contains heavy metals and organic complexing agents such as ethylenediaminetetraacetic acid (EDTA) and hydroxyethylidene diphosphonic acid (HEDDI). After electroplating wastewater treatment, it achieves convenient solid-liquid separation and recovery through centrifugation and filtration. After acid washing and alcohol washing regeneration, it exhibits excellent cycle stability. With its superior purification efficiency and recycling advantages, it has shown promising development potential in the field of electroplating wastewater treatment.

The invention relates to the technical field of film packaging, in particular to an anti-yellowing low-moisture-absorption high-dimensional-stability BOPA film and a preparation method thereof. The film is composed of a first surface layer, a core layer and a second surface layer, the surface layers contain anti-yellowing PA particles, anti-sticking master batches and other auxiliaries, and the core layer contains anti-yellowing PA particles and other auxiliaries; wherein the anti-yellowing PA particles are prepared by melt extrusion of low-moisture-absorption PA particles, a compound stabilizer and an end-capping reagent, and the low-moisture-absorption PA particles are prepared by intercalation solid-phase polymerization of PA6, special nylon and flaky nanoparticles; the compound stabilizer is compounded by a heat stabilizer and a light stabilizer; and the end-capping reagent can seal polyamide active groups. The film is prepared through raw material drying, melt extrusion, synchronous two-way stretching, heat setting and corona treatment, keeps excellent mechanical strength and optical transparency, also has low moisture absorption, high dimensional stability and yellowing resistance, and can be widely applied to the field of flexible packaging of food, daily necessities, electronic appliances and the like.

The invention discloses a waterproof anti-slip coating for bridges and a production process thereof, and relates to the technical field of protective paints.The coating is composed of a component A and a component B. The component A is a prepolymer generated through reaction of phosphorus-containing modified polycarbonate diol and hexamethylene diisocyanate and has good hydrophobicity, the compactness of a coating is improved, and the anti-slip effect is good; the component B is composed of isophorone diamine, a modified chain extender and a surface modified silicon carbide filler, a silicon dioxide coating layer is formed on the surface of silicon carbide through hydrolytic condensation of tetraethyl orthosilicate, further coupling modification is performed through epoxy-fluorine-containing silane, a reactive epoxy group and a hydrophobic fluorine-containing group are introduced, the skid resistance and the medium infiltration resistance of the filler are improved, and the wear resistance of the filler is improved. Active groups in the modified chain extender promote the formation of a cross-linked structure and improve the mechanical property and bonding strength of the coating, so that the coating has high strength, water resistance, corrosion resistance and excellent skid resistance.

Provided are a method for producing a cellulose complex capable of substantially uniformly dispersing cellulose in a resin without adding a compatibilizer (dispersant) while maintaining the properties of cellulose, a method for producing a cellulose complex / resin composition, a cellulose complex, and a cellulose complex / resin composition. The method for producing a cellulose complex includes a mixing step of mixing cellulose having a hydroxy group with a polymer having a reactive group capable of reacting with the hydroxy group and including a nonpolar polymer as a molecular chain, and a step of bonding the hydroxy group and the reactive group.

The application relates to the technical field of liquid flow batteries, and discloses a high-stability flow channel plate, a preparation method thereof and a liquid flow battery, which comprises the following steps: processing and shaping a conductive plate material, and performing plasma pretreatment to introduce active groups on the surface of the conductive plate material, so as to obtain a pre-oxidized flow channel plate; preparing film-forming slurry, wherein the film-forming slurry comprises a solvent, a dispersing agent, a perfluoroalkyl phosphonic acid and a conductive agent; soaking the pre-oxidized flow channel plate in the film-forming slurry, and performing a self-assembly reaction under light-proof conditions, so that the perfluoroalkyl phosphonic acid is chemically bonded with the active groups on the surface of the pre-oxidized flow channel plate through phosphonic acid groups, and the conductive agent is distributed in a hydrophobic film layer formed by the perfluoroalkyl phosphonic acid, so as to construct a hydrophobic conductive composite film; and cleaning and drying the flow channel plate after the reaction, so as to obtain the high-stability flow channel plate. The application has the advantages of high conductivity, hydrolysis resistance, acid and alkali resistance, high-temperature resistance, blistering resistance and low cost.

This invention discloses a low-reflectivity ink and its preparation method, belonging to the field of printing ink technology. The low-reflectivity ink of this invention effectively solves the problem of existing inks' difficulty in simultaneously achieving low reflectivity, high adhesion, and high light-blocking performance by selecting polyester resin, adipic acid dihydrazide modifier, and molybdenum nitride-carbon black composite filler. The polyester resin, as the base resin, has good film-forming properties and compatibility; its active groups can undergo cross-linking reactions with adipic acid dihydrazide, improving the density and adhesion of the film layer. The nano-sized carbon black in the composite filler has excellent light absorption properties, effectively reducing ink reflectivity. Micron-sized molybdenum nitride, as the framework particle, enhances the mechanical strength and scratch resistance of the film layer, forming a complementary light-absorbing structure with the nano-sized carbon black, further improving light-blocking and mechanical properties, while also improving the ink's lightfastness and preventing coating deterioration after long-term use.

The invention discloses a method for preparing high-stability anionic polyacrylamide based on thiol-ene click chemistry. The core of the method is to construct an omnibearing stable system of a polymer from three dimensions through a click chemical reaction: the structure is stable: a topological chain structure with a space charge shielding effect is formed through accurate arrangement of monomers, so that a molecular skeleton and an active group keep long-acting stability. And the conformation is stable: the rigid-flexible adjustable chain segment design forms an internal microphase separation structure, so that the polymer can maintain the stretched and stable hydration conformation in various aqueous solutions, and the performance is consistent. And the process is stable: the reaction mechanism of ion complexing and click addition realizes the gentle release of polymerization heat, so that the synthesis process has high tolerance to parameter fluctuation. According to the invention, the problem of performance degradation caused by disordered structure and sensitive process of a traditional product is systematically solved, and a reliable solution is provided for the application field with strict requirements on stability.

The application relates to a preparation method and application of a titanium alloy surface antibacterial nanometer enzyme coating and relates to a titanium alloy surface modification method and application. The application aims to solve the problem of nanometer enzyme activity reduction caused by the shielding effect of a resin primer on active sites of nanometer enzymes in a traditional nanometer enzyme immobilization method. A porous ceramic coating is prepared on a titanium alloy surface through plasma electrolytic oxidation technology, active groups and nano structures are generated on the surface of the porous ceramic coating through alkali heat treatment, and cerium-based nanometer enzyme UiO-66 (Ce) with high HPO activity and high binding force is grown on the surface of the titanium alloy porous ceramic coating in situ; the PEO / UiO-66 (Ce) integral coating prepared in the in-situ growth mode has the advantages that the UiO-66 (Ce) nanometer enzyme is directly grown on the surface in situ, active sites can be fully exposed to a water environment, Br ‑ and H2O2 can easily enter the active sites to trigger a catalytic reaction to generate HOBr.

The present application relates to the technical field of multiphase flow monitoring, and particularly relates to an aggregation-induced emission material, a preparation method and application thereof, the preparation method comprising the following steps: mixing a conjugate, an electron donor and an additive, and reacting to obtain an aggregation-induced emission molecule; mixing the aggregation-induced emission molecule with an organic solvent to obtain a molecular solution; mixing particulate matter containing an active group with a solvent to obtain a particulate matter solution; mixing the molecular solution with the particulate matter solution, and reacting to obtain the aggregation-induced emission material; the electron donor comprises an amino-containing electron donor, a carboxyl-containing electron donor or a hydroxyl-containing electron donor; the active group in the particulate matter containing the active group comprises an amino group, a carboxyl group or a hydroxyl group.The technical scheme of the present application realizes dynamic migration tracking and quantitative analysis of the aggregation-induced emission material in a non-transparent porous medium, and solves the problems of poor penetration and strong background interference of traditional optical tracking technology in the non-transparent porous medium.