34 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 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 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 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 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.

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.

Gypsum, its preparation method, and application, belonging to the technical field of gypsum materials. The gypsum comprises the following components: 55-65 parts of desulfurized gypsum, 29.2-38.4 parts of limestone powder, 1-3 parts of silica fume, 1-3 parts of calcium chloride, and 1.2-3.8 parts of a composite water reducer. The composite water reducer is composed of calcium ligninsulfonate, sodium aminosulfonate, and polyethylene glycol monomethyl ether in a weight ratio of 1-3:0.1-0.5:0.1-0.3. The preparation steps are: 1) mixing the calcium ligninsulfonate, sodium aminosulfonate, and polyethylene glycol monomethyl ether to obtain the composite water reducer; 2) mixing the limestone powder, silica fume, calcium chloride, and composite water reducer to obtain component A; 3) dehydrating the desulfurized gypsum and then mixing it with component A in a mixer to obtain the gypsum. The gypsum of the invention can be applied to ordinary Portland cement and composite Portland cement, and can solve the problems of high water demand, slow early strength development and poor anti-seepage performance.

The invention provides a preparation method of a special flame retardant for rigid polyurethane foam, and solves the technical problem that a sulfonate flame retardant cannot be widely applied to rigid polyurethane foam due to uneven dispersion, instability, poor compatibility and the like in the existing rigid polyurethane foam preparation process. The preparation method comprises the following steps: reacting silicon dioxide hollow microspheres with a silane coupling agent with epoxy functional groups in an ethanol aqueous solution in an alkaline environment to obtain surface-activated silicon dioxide hollow microspheres; and reacting the surface-activated silicon dioxide hollow microspheres with basic sulfamate or guanidine sulfamate, and after the reaction is finished, performing post-treatment to obtain the special flame retardant for the rigid polyurethane foam. The material can be widely applied to the technical field of flame-retardant materials.

The invention discloses a nickel plating solution as well as a preparation method and application thereof. The nickel plating solution is prepared from the following raw materials: nickel aminosulfonate, nickel chloride, boric acid and an additive UPC Ni MP601, the additive UPC Ni MP601 is prepared from the following raw materials: a grain refiner, a complexing agent, a stress regulator and an antioxidant, the nickel plating solution disclosed by the invention can be used for preparing a plating layer which is high in binding force with a matrix, high in microhardness and outstanding in corrosion resistance, the plating layer is bright, flat and fine in appearance, and the surface of the plating layer is free of defects such as pinholes, hard spots, bubbles and mist.

The present invention discloses a solid organic acid catalyst, which comprises a strongly acidic cation exchange resin and a metal chloride; the strongly acidic cation exchange resin has a structure shown in Formula A below, where n = 60 - 180; the metal chloride is selected from one of aluminum chloride, iron chloride or chromium chloride. The strongly acidic cation exchange resin is prepared by reacting the product of the reaction of allyl bromide and N-(glycidyl)-N-phenyl-oxiranemethanamine with divinylbenzene, and then sulfonating with sodium aminosulfonate. The solid organic acid catalyst provided by the present invention has good stability, a long service life, strong catalytic ability and specific catalytic performance.

The invention relates to a corrosion-resistant and wear-resistant pressure transmitter and a production method thereof, the corrosion-resistant and wear-resistant pressure transmitter comprises a negative pressure side body, a positive pressure side body, a negative pressure side isolation diaphragm and a positive pressure side isolation diaphragm, and the negative pressure side body and the positive pressure side body are fixed together; the negative pressure side isolation diaphragm comprises a negative pressure side substrate material layer, a nickel plating layer, a nickel aminosulfonate plating layer, a gold plating layer, a nickel aminosulfonate plating layer and a high-phosphorus chemical nickel plating layer; the positive pressure side isolation diaphragm comprises a positive pressure side substrate material layer, a nickel plating layer, a nickel aminosulfonate plating layer, a gold plating layer, a nickel aminosulfonate plating layer and a high-phosphorus chemical nickel plating layer. The production method comprises the steps of welding, ultrasonic electrolysis oil removal, hot water soaking, soaking in hydrochloric acid, nickel plating, nickel aminosulfonate plating, gold plating, nickel aminosulfonate plating and high-phosphorus chemical nickel plating. Due to the fact that the negative pressure side isolation diaphragm and the positive pressure side isolation diaphragm which are resistant to abrasion and corrosion are adopted, the phenomena of corrosion and abrasion in the using process can be reduced, and the service life of the diaphragm is greatly prolonged.

The invention relates to a palladium-nickel alloy electroplating solution which comprises 45-55 g / L of tetraammine palladium sulfate, 30-40 g / L of nickel aminosulfonate, 120-160 g / L of ammonium sulfate, 20-40 g / L of urea, 20-30 ml / L of complexing agent, 3-6 ml / L of brightening agent and 1-2 ml / L of wetting agent. And the high-speed continuous plating process specification is as follows: PH is 6.8-7.5, the temperature is 50-60 DEG C, the cathode current density is 20-50A / dm < 2 >, and the anode is a titanium anode. Through pulse electroplating, the alloy plating layer contains 75-85% of palladium and 15-25% of nickel, has excellent electrical properties and corrosion resistance, can completely replace a gold plating layer or a hard gold layer, and saves more than 20% of precious metals. The complexing agents adopted by the invention are divided into two types, wherein the type A is hydroxyethyl and hydroxypropyl compounds of organic amine; and the type B is a macromolecular organic amine polyurea quaternary ammonium salt cationic compound. The brightener adopted by the invention is pyridine, thiazole and imidazole heterocyclic derivatives. Through combined application of the complexing agent and the brightening agent, the technical problem that the palladium content in the palladium-nickel alloy coating is unstable is solved.

The invention discloses a nickel plating solution which comprises the following preparation raw materials: a UPC nickel concentrated solution, boric acid, a UPC Ni RTR MU 01 cylinder opening agent, a UPC Ni RTR additive and an optional UPC Ni RTR brightener. Wherein the UPC nickel concentrated solution comprises nickel aminosulfonate; the preparation raw materials of the UPC Ni RTR MU 01 cylinder opening agent comprise a conductive agent and an ion activating agent; the UPC Ni RTR additive is prepared from the following raw materials: a grain refiner, a corrosion inhibitor, a stress relieving agent and a dispersing agent; the conductive agent comprises monopotassium phosphate and / or sodium dihydrogen phosphate; the ion activator comprises choline chloride; the grain refiner comprises nano silicon dioxide; the corrosion inhibitor comprises soluble cerium salt and / or soluble yttrium salt; and the UPC Ni RTR brightener comprises sodium vinyl sulfonate. A nickel plating layer obtained by deposition of the nickel plating solution provided by the invention is extremely low in stress and uniform in thickness distribution, and has excellent corrosion resistance and extremely excellent conductivity.