61 results about "Aminosulfonate" patented technology

The invention discloses a tungsten alloy wire and a product and a preparation method thereof, the tungsten alloy wire is composed of a tungsten alloy bus and a self-lubricating composite coating, and the self-lubricating composite coating sequentially comprises a pre-coating and a composite coating from inside to outside. On one hand, the tungsten alloy bus is etched through hydrofluoric acid, and meanwhile, the pre-plating bottom layer is added, so that the binding force between the electroplated layer and the tungsten alloy bus is enhanced. Meanwhile, the lubricating composite coating is prepared by adding solid lubricating particles into the electroplating liquid for composite electroplating, so that the die loss in the drawing process is effectively reduced, and the cost is saved; and on the other hand, a nickel aminosulfonate pre-plating process is changed, and impact nickel is used as a pre-plating bottom layer of the diamond wire, so that the binding force of the grinding composite coating and the diamond wire bus is improved, and the problems of wire breakage or silicon wafer scratching and the like caused by falling of the grinding composite coating in the cutting process of the diamond wire can be prevented.

The invention relates to the field of unmanned aerial vehicle materials, and discloses a modified carbon fiber material for an unmanned aerial vehicle, which comprises the following structural layers: a carbon fiber matrix; the Ni-Ti transition layer is deposited on the surface of the base body, the thickness of the Ni-Ti transition layer is 18-22 microns, and the mass ratio of Ni to Ti is 49.5: 50.5-50.5: 49.5; the nano composite coating covers the transition layer and comprises a nickel aminosulfonate matrix, nano alpha-Al2O3 and silicon carbide whiskers, the nano alpha-Al2O3 and the silicon carbide whiskers are dispersed in the nickel aminosulfonate matrix, the content of Al2O3 is 78-82 g / L, and the content of the silicon carbide whiskers is 14-16 g / L. Through the gradient composite interface structure design, cross-scale synergistic reinforcement of the metal matrix, the ceramic layer and the resin layer is achieved, the synergistic effect of chemical bonding and physical anchoring is further enhanced, and the material can still keep excellent interface stability in a thermal-mechanical coupling environment.

The invention relates to the technical field of high-wear-resistance alloys, and particularly discloses a preparation method of a high-wear-resistance alloy steel lining plate. The preparation method comprises the following steps that S1, an alloy steel lining plate is placed in a plating solution to be electroplated, and an alloy steel lining plate A with a plating layer A on the surface is obtained; the plating solution comprises the following raw materials: 45-60 g / L of sodium citrate dehydrate, 30-35 g / L of boric acid, 5-8 g / L of ammonium chloride, 80-100 g / L of nickel aminosulfonate, 180-200 g / L of iron aminosulfonate, 0.5-0.8 g / L of lauryl sodium sulfate, 2-5 g / L of modified boron nitride and the balance of deionized water. S2, an alloy steel lining plate A is taken, the surface of the alloy steel lining plate A is plated with a transition metal boride layer through arc ion plating, the transition metal boride layer serves as a plating layer B, and an alloy steel lining plate B is obtained; and S3, the alloy steel lining plate B is taken, boronizing is conducted after annealing, and the high-wear-resistance alloy steel lining plate is obtained.

The invention discloses an electrolytic solution of a platinum-rhodium alloy, a preparation method and a preparation method of a plating layer of the platinum-rhodium alloy, and belongs to the technical field of precise electroplating. The electrolytic solution comprises a platinum salt, a rhodium salt, a first additive, a second additive, a first complexing agent, a second complexing agent, a first stabilizer and a second stabilizer, the first additive is a sulfamic acid compound containing 3-4 hydroxyalkyl groups, the second additive is sulfamic acid salt containing 3-4 hydroxyalkyl groups, and the first complexing agent and the second complexing agent are a platinum salt and a rhodium salt. The first complexing agent is a mixture of dicarboxylic acid and dicarboxylic acid containing amino or hydroxyl, the second complexing agent is a salt corresponding to the dicarboxylic acid, and the first stabilizer is a mixture of alkyl sulfonic acid and alkyl sulfonate. Through the synergistic effect of the additive, the complexing agent and the stabilizer, the additive, the complexing agent and the stabilizer form a five-membered to seven-membered heterocyclic coupling structure with platinum ions and rhodium ions, and the stability of the electrolytic solution is remarkably improved. And the obtained platinum-rhodium alloy coating is compact and uniform, and has excellent nitric acid steam and mixed gas corrosion resistance.

The invention relates to the technical field of lead frame coarsening, in particular to a nickel coarsening process of a lead frame. A nickel coarsening process of a lead frame comprises the following procedures of oil removal, acid pickling, nickel electroplating coarsening and acid pickling, the nickel electroplating coarsening refers to that an electroplating coarse nickel layer is obtained in an electroplating bath loaded with nickel electroplating coarsening liquid in an electroplating mode, and the nickel electroplating coarsening liquid comprises 90-130 g / L of nickel aminosulfonate, 40-50 g / L of boric acid and 0.1-0.3 g / L of an additive. According to the nickel roughening process of the lead frame, the rough nickel layer can be directly obtained, and the copper substrate does not need to be treated, namely additional electroplating pretreatment is not needed. According to the nickel coarsening process, crystallization of nickel ions on the surface of the lead frame is remarkably affected in the nickel electroplating deposition process through the additive in the nickel electroplating coarsening liquid, the limiting current density of the nickel electroplating coarsening liquid is reduced, deposition of a high-current-density area is restrained, nearly-spherical round grains are formed, and the nickel electroplating quality is improved. Meanwhile, the process of electron deposition of nickel ions is accelerated, cathodic polarization is reduced, growth of nickel crystal nucleuses is promoted instead of nucleation, large-size particles are formed, the surface roughness is improved, an electroplating coarse nickel layer with certain roughness is finally formed, the content of nickel metal in an electroplating nickel coarsening solution cannot be continuously increased, wastewater discharge is reduced, and the production cost is reduced. The environment is protected.

A corrosion-resistant and temperature-shock-resistant composite layer based on a tin layer, a corrosion-resistant and temperature-shock-resistant treatment method for an aluminum substrate, and an aluminum terminal. The corrosion-resistant and temperature-shock-resistant composite layer based on a tin layer comprises: an alkaline copper layer (3), a pyrophosphate copper layer (4), a nickel aminosulfonate layer (5) and a tin layer (6), wherein the thickness of the alkaline copper layer (3) is 1-10 μm, the thickness of the pyrophosphate copper layer (4) is 2-18 μm, the thickness of the nickel aminosulfonate layer (5) is 3-28 μm, and the thickness of the tin layer (6) is 3-30 μm. The corrosion-resistant treatment method for the aluminum substrate comprises the step of providing a corrosion-resistant and temperature-shock-resistant composite layer on the surface of an aluminum substrate (1). The surface of the corrosion-resistant aluminum terminal is provided with the corrosion-resistant and temperature-shock-resistant composite layer. The composite layer has good performance, and still has a good corrosion-resistant effect after being subjected to a temperature cycle shock; and after being subjected to the temperature cycle shock, the composite layer can still meet the requirement for 240-hour salt spray corrosion resistance.

The invention discloses an electroplating process of extensible nickel, and relates to the technical field of electroplating, nickel aminosulfonate or nickel sulfate is selected as a main component of an electroplating solution, and an ultrasonic technology is used in the electroplating process to help remove bubbles and gas in electrolyte. The design of the ultrasonic vibration plate can ensure the propagation efficiency and the cleaning effect of ultrasonic waves, additives and wetting agents are omitted, carbon and sulfur components in a plating layer are reduced, the plating layer appearance problem and the hydrogen evolution problem caused by the additives and the wetting agents are omitted, the nickel ductility can be remarkably improved, electroplated workpieces are free of cracks and pinholes, and the service life of the workpieces is prolonged. In the electroplating process, oxidation of an electroplating solution can be effectively reduced through matched arrangement of the sealing assembly and the triggering assembly, the stability and purity of the solution are improved, the automatic switch passing function is achieved, automation of the electroplating process can be achieved, and the electroplating efficiency is improved. The electroplating process is combined with advanced chemical formula, equipment technology and automatic control, the high-quality and high-efficiency electroplating process can be realized, and the appearance and performance of the product are improved.

This invention discloses a solid sodium aminosulfonate β-H elimination promoter, its preparation method, and its application, relating to the technical field of β-H elimination promoters. The technical solution is as follows: S1, diethylenetriamine is dissolved in an organic solvent; S2, chlorosulfonic acid organic solution is added dropwise to the diethylenetriamine organic solution at 0-10℃ to carry out the reaction; after the addition is complete, the temperature is raised to continue the reaction; S3, the white solid generated by the reaction is filtered and washed with chloroform and ethanol respectively. The washed white solid is poured into anhydrous methanol and dispersed evenly. The reaction temperature is lowered to 0℃, sodium hydroxide is added for neutralization, and the solvent is removed by vacuum distillation. The resulting pale yellow solid is washed with ethanol and finally dried under vacuum to obtain the solid sodium aminosulfonate β-H elimination promoter. The solid sodium aminosulfonate β-H elimination promoter prepared by this invention has advantages such as high metal salt content, strong alkalinity, and easy separation, making it a promising additive for industrial application.

The application discloses a preparation method and application of a water-based conductive binder for a silicon-based negative electrode of a lithium ion battery. The water-based conductive binder is a kind of polymer aqueous solution prepared by copolymerization of monomer A, monomer B and monomer C in water, and then grafting reaction with amino sulfonate monomer D containing a long-chain ether bond. The obtained solution has a solid content of 2.5-5% after dialysis purification, and has the characteristics of water solubility, heat crosslinking and enhanced ionic conductivity, thereby solving the problem of large viscosity of the crosslinked network binder slurry and difficulty in dispersion. The electrode material coated on the copper foil has the characteristics of strong dry and wet adhesion and difficulty in falling off, the binder is used for the silicon-based negative electrode, the influence of the volume expansion of silicon can be relieved, the battery has high specific capacity and good cycle performance. The application has the advantages of low cost, simplicity, universality, environmental friendliness, good coating effect and the like, and is suitable for the silicon-based negative electrode of the lithium ion battery.

The invention discloses a low-stress high-strength nickel-phosphorus alloy electroplating solution and a preparation method and application thereof, and belongs to the technical field of nickel electroplating. The plating solution comprises nickel aminosulfonate, lactic acid and / or lactate, phosphorous acid and / or phosphite, saccharin and / or saccharin salt, and a solvent of the plating solution is water; the molar ratio of nickel aminosulfonate to lactic acid and / or lactate is 0.7 < = M nickel aminosulfonate / M lactic acid and / or lactate < = 1, the molar ratio of phosphorous acid and / or phosphite to saccharin and / or saccharin salt is 2 < = M phosphorous acid and / or phosphite / M saccharin and / or saccharin salt < = 8, and the pH value of the plating solution is 3.0-4.5. According to the low-stress high-strength electroplating nickel-phosphorus alloy plating solution as well as the preparation method and the using method thereof, an obtained nickel-phosphorus alloy plating layer is controllable in stress, and the strength of the nickel-phosphorus alloy plating layer is remarkably superior to that of pure nickel and nickel-cobalt alloy plating layers.

The invention discloses a preparation method of nickel aminosulfonate, and relates to the technical field of nickel-containing chemical production, and the method comprises the following specific steps: multi-element metal pretreatment: mixing and ball-milling nickel, aluminum and magnesium powder, adding an acyclic boroxane-containing aqueous solution, and carrying out ultrasonic treatment to form a suspension; a reaction system is constructed by mixing the suspension liquid, sulfamic acid and an acyclic organic phosphorus compound, a segmented stirring reaction is carried out under the conditions of oxygen introduction and proper temperature and humidity, programmed crystallization and cooling are carried out to form wet crystals, and nickel sulfamic acid is finally prepared through segmented vacuum drying; through collaborative design of multi-metal pretreatment and a reaction system, reaction preparation and proportion are optimized, reaction activity and conversion rate are improved, and side reactions are reduced; and by matching with segmented stirring, substance transfer is promoted, the product purity is guaranteed, program crystallization and segmented vacuum drying are combined, crystal growth and drying conditions are controlled, impurities are removed, the product purity, stability and production efficiency are improved, and the large-scale production requirement is met.

The invention discloses an HY catching agent as well as a preparation method and application thereof, and belongs to the technical field of acid waste liquid regeneration. The HY trapping agent comprises the following components in percentage by mass: 0.08%-2.00% of a pH buffer agent, 5.0%-12.0% of an adsorbent, 0.01%-0.08% of an ionic strength regulator, 0.03%-0.10% of an acid radical supplement, 0.01%-0.03% of a chelating agent, 0.05%-0.2% of sulfamate and a proper amount of deionized water. The heavy metal removal rate is larger than or equal to 99%, the acid radical retention rate is larger than or equal to 95%, and the treatment cost is reduced.

The invention provides a method for detecting sulfamate and sulfate in a topiramate bulk drug, which is suitable for the technical field of detection of impurity control of organic chemical synthesis bulk drugs, especially in the organic synthesis process of bulk drugs. An ion chromatography detection method for monitoring synthesis of potential residual inorganic anion impurities is needed. The analysis method overcomes the limitation that the existing method (such as turbidimetric method) is poor in specificity and cannot detect simultaneously, shortens the analysis time, simplifies the components of the mobile phase, and increases the sensitivity and the accuracy. According to the method, separation and detection are carried out in a gradient elution mode through an ion chromatography method, a chromatographic column is an anion exchange chromatographic column and an electrical conductivity detector, and a mobile phase is a potassium hydroxide solution. The method for detecting the sulfamate and the sulfate in the topiramate bulk drug is good in separation degree, high in specificity, high in precision and good in repeatability, and meets methodological research on determination of the sulfamate and the sulfate in the topiramate bulk drug.

This application relates to the field of polymer materials technology, and particularly to a protein adhesion coating and its preparation method. The protein adhesion coating provided in this application comprises resin I and resin II. Resin I is obtained by reacting maleic anhydride, polyethylene glycol, pyrrole, and hexanediol diacrylate, while resin II is obtained by polymerizing aminosulfonate-modified polyisocyanate with hexanediol. The mass ratio of resin I to resin II is 6-9:7-8. This application utilizes the curing of resin I and resin II to form a protein adhesion coating. Because these two resins contain hydrophobic segments, they can generate hydrophobic interactions and π-π stacking with substrates such as PS culture dishes to enhance adhesion, preventing the substrate from detaching in water. Simultaneously, these two resins contain a large number of amide bonds and zwitterions, which can form hydrogen bonds and electrostatic adsorption with proteins, promoting cell adhesion.

The application discloses a method for floating copper oxide or cobalt copper oxide ore by using calcium and magnesium rich high alkaline tailing backwater, and belongs to the technical field of ore dressing. The method comprises the following steps: crushing, grinding and slurry adjusting of the copper oxide or cobalt copper oxide ore to obtain a slurry; adding copper and cobalt ore inhibitors (ammonium dithiocarbamate and amino sulfonate) and calcium and magnesium gangue mineral collectors into the slurry to perform reverse flotation, and the foam product is calcium and magnesium gangue minerals, and the tailing product is copper oxide or cobalt copper oxide concentrate; wherein, water used in the grinding, slurry adjusting and reverse flotation processes is calcium and magnesium rich high alkaline tailing backwater. The method not only improves the flotation recovery rate of the copper oxide or cobalt copper oxide ore, but also realizes direct and efficient use of the calcium and magnesium rich high alkaline tailing backwater, and has good industrial application value and environmental friendliness.

This invention discloses a nonlinear optical crystal, sodium lead aminosulfonate, its preparation method, and its uses. The sodium lead aminosulfonate has the chemical formula Na₂Pb(SO₃NH₂)₄, belongs to the orthorhombic crystal system, space group C₂₂₁, has a molecular weight of 637.524, and unit cell parameters a = 9.8213(4) Å, b = 9.8315(4) Å, c = 14.5136(6) Å, α = 90°, β = 90°, and γ = 90°. The nonlinear optical crystal prepared by this invention exhibits good ultraviolet transmittance, low toxicity, stability, simple processing, and low cost.

The invention relates to the field of nitrogen-doped graphene preparation, in particular to a preparation method. The preparation method comprises the following steps: taking a graphite flake material as a working electrode, taking one of a platinum sheet, a gold sheet and a graphite foil as a counter electrode, and performing electrochemical oxidation stripping on the graphite flake material in an electrolyte environment; after stripping is completed, the electrolyte is filtered and separated, and a solid product is subjected to cleaning, filtering, centrifugal separation and vacuum drying to obtain high-quality nitrogen-doped graphene; the electrolyte comprises an electrolyte and a nitrogen source additive; the electrolyte is methane sulfonate or sulfamate; the nitrogen source additive is a water-soluble nitrogen-containing compound and is electrolyzed to generate nitrogen-containing free radicals. According to the method, the graphite foil can be converted into the nitrogen-doped graphene in one step, the prepared nitrogen-doped graphene is low in oxidation degree, the electrolytic stripping rate in the preparation process is high, no harmful gas is generated, the energy loss is low, the process is simple and convenient, the cost is low, and the repeated utilization rate of the solution is high.

The utility model relates to an integrated nickel aminosulfonate wastewater treatment system which mainly comprises a tank body, a filter chamber and an electrochemical catalysis device. Through the structural design of the filtering chamber, the electrochemical catalysis device, the first flow guide chamber and the second flow guide chamber, a filtering system and an electrochemical catalytic oxidation system are combined together, the occupied area of the nickel aminosulfonate wastewater treatment system is reduced, large-proportion circulation of internal water flow can be realized, and the impact load resistance and the treatment efficiency of the device are improved.

The present invention relates to the technical field of road construction, and specifically relates to a soil stabilizer, a layered road surface structure and a construction method thereof. The soil stabilizer provided by the present invention realizes the reuse of solid wastes such as waste mine soil at the construction site, and has the characteristics of low carbon and environmental protection. In this soil stabilizer, the solid waste synergistically acts with polyacrylamide, β-naphthalene sulfonate formaldehyde condensate, diethanol monoisopropanolamine, calcium chloride and amino sulfonate superplasticizer, and has good solidification ability and waterproof ability for various soils. It can aggregate and solidify loose soil particles under both dry and wet conditions, and the solidified soil has a high compaction density and compressive strength (the unconfined compressive strength after 7 days of solidification is higher than 2MP). Therefore, this soil stabilizer is an ideal low-carbon and environmentally friendly heavy-duty road construction material.

Provided in the present disclosure are a corrosion-resistant and temperature-shock-resistant composite layer, a corrosion-resistant and temperature-shock-resistant treatment method for an aluminum substrate, and a corrosion-resistant and temperature-shock-resistant aluminum terminal. The corrosion-resistant and temperature-shock-resistant composite layer comprises: an alkaline copper layer, a pyrophosphate copper layer, a nickel aminosulfonate layer and a silver layer, wherein the thickness of the alkaline copper layer is 1-10 μm, the thickness of the pyrophosphate copper layer is 2-18 μm, the thickness of the nickel aminosulfonate layer is 0.5-28 μm, and the thickness of the silver layer is 0.2-25 μm. The corrosion-resistant treatment method for an aluminum substrate comprises the step of providing the corrosion-resistant and temperature-shock-resistant composite layer on the surface of an aluminum substrate. The surface of the corrosion-resistant and temperature-shock-resistant aluminum terminal is provided with the corrosion-resistant and temperature-shock-resistant composite layer. The corrosion-resistant and temperature-shock-resistant composite layer provided by the present disclosure has good salt spray corrosion resistance, the duration of the salt spray corrosion resistance can still reach 120 hours after a temperature shock, and the corrosion-resistant and temperature-shock-resistant composite layer still has a long mechanical life in a severe environment which features rapid temperature changes and high corrosivity.

The present invention belongs to the technical field of coatings, and specifically discloses a waterborne polyurethane curing agent with high water resistance, its preparation method and application. The raw material components of the waterborne polyurethane curing agent, by weight, include: 1.5 - 5 parts of amino sulfonate; 95.0 - 97.5 parts of hexamethylene diisocyanate trimer; 6 - 16 parts of silane coupling agent; 0.15 - 0.5 part of catalyst; the silane coupling agent includes 3-mercaptopropyltriethoxysilane and mercaptopropyltrimethoxysilane. The present invention first synthesizes with amino sulfonate and hexamethylene diisocyanate trimer to ensure that the waterborne polyisocyanate curing agent has excellent dispersibility without dilution with solvent; then, 3-mercaptopropyltriethoxysilane and mercaptopropyltrimethoxysilane react chemically with part of the isocyanate groups under the action of the catalyst in the original waterborne polyisocyanate system, and the siloxy groups are grafted onto the molecular chain to obtain a waterborne polyurethane curing agent with high water resistance.

This invention discloses a selective and efficient inorganic composite plugging agent and its preparation method for oilfield development, comprising the following components by weight: 10-20 parts modified sludge, 5-15 parts inorganic gel, 4-8 parts thickener, 0.5-0.7 parts sodium citrate, and 0.1-0.3 parts aminosulfonate. Through the synergistic effect of modified sludge and inorganic gel, the plugging agent can precisely block water flow channels without excessively affecting the oil layer. The addition of inorganic gel ensures the stability of the plugging agent in underground oilfields. The gel can form a robust plugging layer in a short time, effectively blocking water flow channels and preventing further water flow. Simultaneously, the thickener and modified sludge in the plugging agent enhance its long-term stability under high temperature and high pressure environments, ensuring the long-term effectiveness of the plugging effect.

The invention provides a hydraulic support surface treatment technology, and belongs to the technical field of hydraulic support surface treatment, and the hydraulic support surface treatment technology comprises the following steps: S1, adding ferrous sulfate heptahydrate, sodium molybdate and dimethylamine borane into a nickel aminosulfonate solution, then adding an auxiliary agent, uniformly mixing, and adjusting the pH value to 4.0-4.5 to obtain a nickel aminosulfonate plating solution, electroplating, washing and drying the pretreated hydraulic support base material to form a bottom plating layer; s2, adding the ZIF-67 loaded with BTA / lauric acid into a mixed plating solution of nickel sulfate and cobalt sulfate, and electroplating the hydraulic support base material on which the bottom plating layer is formed to form a functional plating layer; and S3, dipping and hole sealing are conducted on the plating layer through a hole sealing agent, drying is conducted, and the hydraulic support subjected to surface treatment is obtained. The purpose that the hydraulic support is good in corrosion resistance and high in abrasion resistance can be achieved.

The invention discloses a solution for plating nickel on tungsten-based ceramic and a chemical plating process of the solution. The chemical nickel plating solution comprises the following components of 20-50 g / L of nickel aminosulfonate, 5-50 g / L of a composite complexing agent, 1.5-15 g / L of a reducing agent, 1-5 g / L of a composite stabilizer, 0.01-1.0 g / L of a wetting agent, 0.5-5 g / L of a brightener, 0.5-5 g / L of an accelerator and the balance of DI pure water. The solution is mainly used for chemical plating deposition of a nickel-boron plating layer on tungsten-based ceramic, and the use conditions are as follows: the pH is 4.5-6.5, T is 60-80 DEG C, and t is 2-60 min. According to the chemical nickel plating solution, the stability of the plating solution is improved; and the operability in a coating production process is high. The nickel coating obtained by the coating process is firm in binding force with the tungsten substrate, high in hardness and excellent in high temperature resistance and crack resistance, and can meet various performance requirements of the HTCC ceramic.

The invention discloses a preparation method of an electronic-grade high-purity nickel aminosulfonate solution, which comprises the following steps: preparing a functional composite membrane: taking a porous polysulfone support membrane as a substrate, and forming a boron-nitrogen coordination polymer coating on the surface of the porous polysulfone support membrane through interfacial polymerization; then, a graphite-like phase carbon nitride layer grows on the surface of the coating through in-situ roasting; then grafting a phosphorus-sulfur synergistic chelating agent to the surface of the coating through ester exchange reaction; and finally, spraying fluorine modified silane and carrying out activating treatment to obtain the functional composite membrane. Carrying out integrated refining; regenerating and recycling the membrane; according to the preparation method disclosed by the invention, the fully non-metallic element functional composite membrane consisting of the boron-nitrogen coordination polymer, the graphite-like carbon nitride photocatalytic layer, the phosphorus-sulfur synergistic chelating agent and the fluorinated layer is innovatively designed and prepared and is combined with a customized integrated refining process; and synchronous and deep removal of various different-property impurities in a single process is realized.

The invention relates to the field of electroplating of backboard connectors, and particularly discloses an electroplating method of a high-speed line backboard connector, which comprises the following steps: S1, washing the surface of a copper substrate to obtain a pretreated substrate; s2, electroplating a nickel layer on the surface of the pretreated base material, and cleaning to obtain a semi-finished product; s3, after the surface of the semi-finished product is electroplated with a gold layer, a finished product connector is obtained after hole sealing, water washing and drying; an electroplating solution of the nickel electroplating layer comprises the following raw materials in parts by weight: 280-320 g / L of nickel aminosulfonate, 100-140 g / L of polyethylene glycol compounded nickel aminosulfonate, 50-60 g / L of nickel sulfate, 30-40 g / L of boric acid, 120-180 g / L of pyridinium hydroxy propyl sulfobetaine, 10-25 g / L of triethanolamine compounded glycolic acid, 5-10 g / L of a brightener and the balance of pure water which is supplemented to 1 L; the coating has the advantages of uniform coating, good binding force between the coating and a base material and good conductivity.

The invention discloses a deep hole electroplating nickel-plating solution and a nickel-plating process thereof, and relates to the field of electroplating. The nickel plating solution for deep hole electroplating comprises a water-soluble nickel salt, a complexing agent, a deep hole agent, polyethylene glycol, butynediol dipropoxy ether, a water-soluble conducting salt, dibenzenesulfonimide and water, wherein the complexing agent comprises glycine / aminopropionic acid, sulfamate, malic acid, etidronic acid and sodium citrate. According to the deep hole electroplating nickel-plating solution, nickel ions in a system can be stabilized, the reduction deposition efficiency of nickel is controlled, the nickel deposition process is stable and controllable, meanwhile, the penetration and dispersion capacity of the electroplating nickel-plating solution to a deep hole area is high, a zinc alloy substrate can evenly plate deep holes with the depth being 1 cm or above, and the electroplating quality of the deep holes is improved. Therefore, fine, uniform and compact nickel layers can be stably deposited inside and outside deep holes of the zinc alloy substrate, and the corrosion resistance can be improved.

The invention relates to the technical field of chemical nickel plating, and particularly discloses a low-stress chemical nickel plating solution and a preparation method thereof.According to the chemical nickel plating solution, uniform deposition of a nickel layer is achieved through optimization and adjustment of a formula, nickel aminosulfonate provides a stable nickel source, a reducing agent and a complexing agent are matched to control the deposition rate, and therefore the low-stress chemical nickel plating solution is obtained. Sodium hydrogen citrate maintains the acid-base balance of the plating solution, and a macromolecular chain segment in the composite additive can form an adsorption layer on an interface, so that the local stress concentration in the grain growth process is reduced; the benzothiazole group can be moderately coordinated with the nickel surface through nitrogen and sulfur atoms to inhibit abnormal growth of crystal grains, so that the crystal grain size distribution of the plating layer is more concentrated, the plating layer is flat and compact, the general size precision and appearance requirements can be met without post-treatment, and the method is suitable for metallization scenes sensitive to residual stress and has good application prospects. And the method is particularly suitable for surface treatment of chemical nickel-plating and gold-plating of the flexible printed circuit.

The invention relates to the technical field of lithium ion battery binder materials, and particularly discloses a high-flexibility water-soluble high-viscosity CMC material, the chemical general formula of which is [C6H7O2 (OH) (3-x-y) (OCH2COONa) x (OSO3Na y)] n, x is equal to 0.85-0.95, y is equal to 0.18-0.22, and more than or equal to 95% in a sulfonic acid group is bonded to a C6 site of a glucose ring. The preparation method comprises the following steps: (a) dispersing sodium carboxymethyl cellulose in ethanol, and adding sulfuric acid to obtain CMC-H; (b) dispersing CMC-H in ethanol to form a CMC-H suspension, and reacting the CMC-H suspension with a CO2 saturated sodium sulfamate solution; and (c) carrying out vacuum drying treatment after washing. According to the application of the high-flexibility water-soluble high-viscosity CMC material, the high-flexibility water-soluble high-viscosity CM material is adopted as a negative electrode active substance, a conductive agent is dispersed in a solvent to form slurry, and then a lithium battery negative electrode plate is prepared through coating, drying and rolling. According to the scheme, carboxymethyl cellulose is subjected to protonation and sulfonated with sodium sulfamate under specific process conditions, so that the CMC material has high elongation at break (high flexibility) and high viscosity.

The invention relates to a composite synergistic titanyl sulfate water-soluble fertilizer and a preparation method thereof, and belongs to the field of water-soluble fertilizer production, the composite synergistic titanyl sulfate water-soluble fertilizer comprises the following substances by weight: 2.5 parts of titanyl sulfate, 0.8 part of EDTA, 1.6 parts of manganese sulfamate, 40-50 parts of calcium ammonium nitrate, 5 parts of lysine chelated zinc, 60-80 parts of potassium dihydrogen phosphate, and 500 parts of deionized water. According to the invention, titanyl sulfate, EDTA and manganese sulfamate are compounded according to a specific low proportion, and through a synergistic effect of chelating synergism and accurate regulation and control of carbon metabolism, ion interference is avoided, and dual enhancement of the activity and quality improvement effect of the titanium fertilizer is realized at the same time; according to the invention, the chelating effect of EDTA can improve the solubility, the stability and the bioavailability of metal ions; the manganese sulfamate can promote conversion balance of oxygen and carbon dioxide in plants at low concentration, activate carbon metabolism key enzymes and improve sugar synthesis efficiency and utilization rate.