252 results about "Sodium Polystyrene Sulfonate" patented technology

The invention relates to a method for preparing poly(3,4-ethylenedioxythiophene) / sulfonated graphene composite hydrogel with a porous structure through supramolecular self-assembly. The method comprises the following steps of: dissolving sodium polystyrene sulfonate and sulfonated graphene in water, stirring, performing ultrasonic dispersion to ensure that the sodium polystyrene sulfonate and thesulfonated graphene are dissolved, adding a 3,4-ethylenedioxythiophene monomer, uniformly stirring, adding polyvalent iron salt, standing at room temperature and reacting to obtain blocky poly(3,4-ethylenedioxythiophene) / sulfonated graphene composite hydrogel. The poly(3,4-ethylenedioxythiophene) / sulfonated graphene composite hydrogel with a controllable and porous structure is prepared by using the interaction and electrostatic action of a hydrogen bond and a pi-pi bond among the sulfonated graphene, the sodium polystyrene sulfonate and 3,4-ethylenedioxythiophene through supramolecular self-assembly. The prepared composite hydrogel has high electrical conductivity and mechanical strength, and high specific capacitance and cycle stability in electroactive electrolyte.

The invention relates to a non-phosphorus scale and corrosion inhibitor for industrial circulating water and a preparation method and applications thereof, and provides a non-phosphorus (phosphine) scale and corrosion inhibitor for industrial circulating water in order to settle the technical problems. The product containing single component has the characteristics of being convenient in addition and excellent in scale and corrosion inhibiting performance. The non-phosphorus scale and corrosion inhibitor consists of the following components in parts by weight: 30 to 50 parts of dispersing scale inhibitor, 8 to 25 parts of corrosion inhibitor and 28 to 43 parts of auxiliary, wherein the dispersing scale inhibitor is acrylic acid-acrylic ester terpolymer or the mixture of the acrylic acid-acrylic ester terpolymer and at least one of the hydrolytic maleic anhydride, polyaspartic acid and sodium polystyrene sulfonate; and the corrosion inhibitor is soluble zinc salt (e.g. zinc sulfate and zinc chloride) and benzotriazole (or methyl benzotriazole). The non-phosphorus scale and corrosion inhibitor has excellent scale and corrosion inhibiting performance as well as meets and precedes the demand of GB50050-2007.

Provided is an aggregate of carbon nanotubes wherein a mixture of 10 mg of aggregate of carbon nanotubes, 30 mg of sodium polystyrene sulfonate and 10 mL of water is subjected to ultrasonic homogenizer treatment, subsequently subjected to centrifugal treatment at 20000 G, then 9 mL of supernatant is sampled, and the content of aggregate of carbon nanotubes in the supernatant is 0.6 mg / mL or more. The aggregate of carbon nanotubes of the present invention can provide a dispersion of an aggregate of carbon nanotubes having a high concentration through very good dispersibility.

The invention relates to composite fine particles of a forward osmosis driving solution system. Fine particle cores are fully or partially coated by a separable outer layer; an outer layer shell provides an osmotic pressure; and the cores provide a separable characteristic. The solution system has the characteristics that: (1) the system has the composite fine particles having core-shell structures; (2) the diameters of the composite fine particles are less than 500 microns; and (3) the cores of the fine particles comprise particle cores of polymer particles, chitosan, nonmetal particles, metal or alloy; the shells of the fine particles comprise sodium polystyrene sulfonate, polyvinylamine hydrochloride, polyacrylic acid sodium salt, sylvite, calcium salt, polymethylacrylic acid sodium salt or sylvite, polyvinyl alcohol or polyaniline hydrochloride; the surfaces of the fine particle shells are provided with grafted groups, namely, chemical substances having ionization performance are grated on the surfaces of the particle shells by a chemical method; chemical structures having ionization performance are selected from the following chemical substances: Cl<->, COO<-> or SO<3->; and corresponding counter ions are H<+>, Na<+>, K<+>, Ca<2+> or quaternary ammonium salt according to the properties of the groups.

The invention relates to a low temperature early strength channeling control cement slurry, comprising portland cement, water, light strengthening agent, low-temperature early strength agent, channeling control agent, rheological performance adjusting agent and defoaming agent; wherein, the light strengthening agent consists of glass beads, fine cement, fine silicon powder and superfine, high-activity slag; the low-temperature early strengthening agent consists of sodium silicate, calcium sulphate and triethanolamine; the channeling control agent consists of polyvinyl alcohol, gypsum, poly naphthalene sulphonic sodium and borax; the rheological performance adjusting agent consists of sodium polystyrene sulfonate and calcium lignosulfonate; the defoaming agent consists of poly glycol dipropionate ether. The invention has the advantages of fast expanding speed of intensity in low temperature, strong channeling control and leakage resistance performance, low water lost and good rheological performance, and can be used as cementing material in low-temperature air layer, activity water layer and leakiness ground layer.

The invention discloses a preparation method of a functionalized carbon quantum dot modified composite nanofiltration membrane. The preparation method is characterized by comprising the following steps of dissolving citric acid and sodium polystyrene sulfonate into water, and then removing water to obtain mixed powder of the citric acid and the sodium polystyrene sulfonate which is uniformly mixed; then pyrolyzing the mixed powder to obtain functionalized carbon quantum dots; respectively preparing the functionalized carbon quantum dots into a water-phase solution and an oil-phase solution; and sequentially soaking a porous supporting membrane into the water-phase solution and the oil-phase solution for reaction, and enabling the surface of the porous supporting membrane to generate a functionalized carbon quantum dot loaded aromatic polymer functional skin layer to obtain the functionalized carbon quantum dot-containing composite nanofiltration membrane. By adopting the preparation method provided by the invention, the functionalized carbon quantum dots are good loaded on the membrane, so that improvement in water flux, hydrophilicity and antifouling property of the composite membrane is facilitated, and relatively high inorganic salt retention rate is kept. The preparation method is simple, is relatively low in production cost, is remarkably improved in membrane comprehensiveperformance and has a good industrial production basis and a wide application prospect.

The invention relates to a preparation method of water-dispersible graphene / ferroferric oxide (Fe3O4) composite powder. The method comprises the following steps of: (1) ultrasonically dispersing graphite oxide and sodium polystyrene sulfonate into water at room temperature to form reaction liquid, raising a temperature to 90 to 110 DEG C, and reacting for 8 to 16 hours; (2) adding ferric salt and ferrous salt into the reaction liquid under the protection of nitrogen atmosphere at room temperature, adding ammonia water, reducing the temperature to 70 to 90 DEG C, reacting for 20 to 40 minutes, and then adding an oleic acid for continuous reaction; and (3) cooling to room temperature, collecting the graphene / Fe3O4 composite powder by using a magnet, washing and drying to obtain the finished product. The method is simple and easy for industrial production; Fe3O4 in the prepared composite powder has pure crystalline phase; the Fe3O4 is well combined with the graphene; the Fe3O4 has good dispersibility on a surface of the graphene and in a layer of the graphene; the composite powder is low in resistivity, high in magnetic intensity and good in underwater dispersibility and has a good application prospect.

The invention relates a layer-by-layer self-assembly polyaniline / nylon composite conductive fabric preparation method, comprising the following steps: pretreating nylon fabric with 5-40g / L of sodium polystyrene sulfonate solution, performing two-dip-two-rolling, drying the fabric at 40-70 DEG C, soaking the fabric in a acid-doped mixed solution of aniline and ammonium persulfate, stirring the solution continuously, reacting for 15-40min, taking the fabric out to washing fully and drying, repeating the above operations n times (n is not less than 1), finally performing second doping for 15-40min in the acid solution of which the hydrogen ion concentration equals 1mol / L and washing and drying the fabric to obtain the polyaniline / nylon composite conductive fabric. The preparation method of the invention combines the padding technology which is frequently used in dyeing and finishing so that the reaction time is reduced, polyaniline can enter in the nylon fibre fast, the electric conductivity of the composite fabric is increased, and the cost and the pollution to the environment are lower.

The invention discloses a process for preparing nanometer composite material of poly thiofuran metal-oxide. The process for preparation is as follows: charging nanometer composite material into solution, and then charging sodium polystyrene sulfonate solution to agitate at high speed or scatter though supersonic, under the obtained solution is agitated, charging thiofuran monomer, oxidant and accelerant respectively, which the mol ratio between the oxidant and the monomer is 0.1-5 and the mol ratio between the accelerant and the monomer is 0.001-0.01, dropping hydrochloric acid to regulate the pH level between 2 and 5 and agitating at high speed for 24-48 hours, drying the obtained miscible liquids at 60-120 DEG C for 3-12 hours, and milling the solid to obtain the nanometer composite material of poly thiofuran metal-oxide. The invention solves the problems effectively of easily agglomerate metal-oxide nanometer particle, bad stability of chemical stability, the composite material has the advantages of simple preparing process, low the cost of the preparing and better property of light, electricity and magnetism and the like.

The invention relates to a method for preparing antistatic aqueous solution by the chemical oxypolymerization of 3, 4-ethylenedioxythiophene (EDOT), i.e., potassium peroxydisulfate is used as oxidizer, sodium polystyrene sulfonate aqueous solution is polymerized with the 3, 4-ethylenedioxythiophene and the antistatic aqueous solution with eminent performance is prepared after the most suitable proportion of all the monomers is determined. Being used as a coat, the antistatic aqueous solution prepared by adopting the method of the invention has low surface resistance (1*10<5>Omega / cm<2>), high mechanical strength, high visible light transmittance, and superior electrochemistry performance and thermal stability. The method is simple in operation and has low requirement on equipment.

This invention relates to a stable, sorbitol free suspension formulation of sodium polystyrene sulfonate.

The invention discloses a sodium polystyrene sulfonate modified metal organic framework film and an application thereof. A production method of the sodium polystyrene sulfonate modified metal organic framework film comprises the following steps: 1, preparing a hydroxide nano-wire solution, mixing the prepared hydroxide nano-wire solution with a sodium polystyrene sulfonate solution, uniformly stirring, and carrying out vacuum pumping filtration to obtain a hydroxide nano-wire and sodium polystyrene sulfonate composite film; and 2, dissolving an organic ligand in an ethanol and water mixed solution to obtain an organic ligand solution, placing the hydroxide nano-wire and sodium polystyrene sulfonate composite film in the organic ligand solution, and carrying out a room temperature reaction for 2-4h to obtain the sodium polystyrene sulfonate modified metal organic framework film. Sodium polystyrene sulfonate and nano-wires are mixed through physical stirring and electrostatic adsorption, and sodium polystyrene sulfonate is introduced into the metal organic framework film in situ in order to carry out modification, so the method has the advantages of avoiding of the organic modification process of the metal organic framework ligand, low energy consumption, no pollution, fastness and high efficiency.

The invention relates to a nanometer plugging agent for a water-based drilling fluid, a preparing method of the nanometer plugging agent and the drilling fluid. The nanometer plugging agent for the water-based drilling fluid is obtained in a manner that multi-walled carbon nanotubes are covalently coated with sodium polystyrenesulfonate, wherein the tube diameter of the multi-walled carbon nanotubes is 20 nm to 30 nm, and the tube length of the multi-walled carbon nanotubes is 10 microns to 30 microns; the number-average molecular weight of the grafted sodium polystyrenesulfonate is 75 kDa, and the degree of polymerization (DOP) is 900; the drilling fluid is prepared from 100 parts by weight of water, 1-8 parts by weight of bentonite, 4-10 parts by weight of a flow-pattern adjusting agent,0.2-1.2 parts by weight of a thickening agent, 4-10 parts by weight of a fluid loss agent, 30-60 parts by weight of a plugging agent, 10-50 parts by weight of a weighting agent, 0.1-4 parts by weightof a lubricating agent and 0.1-0.4 part by weight of a pH adjusting agent. According to the nanometer plugging agent for the water-based drilling fluid, the preparing method of the nanometer pluggingagent and the drilling fluid, the sodium-polystyrenesulfonate-modified multi-walled carbon nanotubes are used as the plugging agent, micron-and-nanometer-size pores of the mud shale well wall can beeffectively plugged, and the nanometer plugging agent is particularly suitable for drilling construction of stratums with low porosity, low permeability, micro-pore micro-crack development and a remarkable capillary effect.

The preparation process of composite magnetic microball includes the following steps: mixing polystyrene micorball with concentrated sulfuric acid to sulfonate polystyrene micorball; dispersing the sulfonated polystyrene micorball with surface negative charge successively in ammonium polydiallyl dimethyl chloride aqua, sodium polystyrene sulfonate aqua and ammonium polydiallyl dimethyl chloride aqua for standing adsorption before centrifugal water washing; dispersing in dilute magnetic fluid liquid for standing adsorption before centrifugal water washing; repeating the two standing adsorption steps until reaching the required layer number of ammonium polydiallyl dimethyl chloride and Fe3O4 of the composite magnetic microball. The said process is completed in aqua and has no environmental pollution.

The invention relates to a polymer catalytic membrane containing a palladium metal activity functional layer prepared based on the technology of layer-by-layer self assembly and a preparation method thereof, which belongs to the field of catalytic membranes. According to the invention, polyacrylonitrile (PAN) powder, polyethylene glycol (PEG) and polyvinylpyrrolidone (PVP) are dissolved in N,N-dimethyl formamide (DMF), and a PAN flat base membrane is prepared by using a phase inversion process; then the PAN membrane is soaked in a NaOH solution for treatment, which allows surface of the membrane to hydrolyze so as to produce carboxyl groups, thereby enabling the surface of the membrane to carry negative electric charges; a polyethyleneimine (PEI) solution and a potassium chloropalladate K2PdCl4 solution are fully mixed and react for a certain period of time so as to obtain a coordination compound of polyethyleneimine-palladium (PEI-Pd(II)); the treated flat base membrane is alternatively soaked in a solution containing the PEI-Pd(II) coordination compound and a polystyrene sulfonate (PSS) solution for self-assembly of functional layers on the surface of the membrane, and the amount of the assembled layers is controlled; and finally, the membrane obtained after assembly is soaked in a potassium borohydride KBH4 solution, Pd(II) is reduced to be Pd0, and the PAN catalytic membrane containing the palladium metal particle active layer is prepared.

The invention discloses a method for preparing a high-conductivity PEDOT-PSS (poly(3,4-ethylenedioxythiophene)-poly(styrenesulfonate)) solution. The preparation method comprises the following steps: a. adding 35-48g of sodium polystyrene sulfonate into 3000-4000ml of deionized water solution, and dissolving while keeping the solution temperature at 5-20 DEG C, thereby obtaining a product A; b. adding 20-40ml of solution containing 2-5g of sulfuric acid into the product A, and adding 8-18g of 3,4-ethylenedioxythiophene to react, thereby obtaining a product B; c. mixing 0.001-0.005g of Fe2(SO4)3 solution and 20-40g of (NH4)2S2O8 solution, putting the mixed solution in a constant-pressure separating funnel, and dropwisely adding the mixed solution into the product B at the rate of 1 drop per 1-5 seconds while stirring at the rate of 300-700 r / min for 30-60 hours, thereby obtaining a product C; and d. adding 30-60g of dimethylsulfoxide, 10-20g of ethylene glycol and 10-30g of ethanol into the product C to react while stirring at the rate of 300-700 r / min for 10-30 hours, thereby obtaining the finished product.

The invention relates to a preparation method for a composite thermoelectric film with flexible reduced graphene oxide (RGO)and tellurium nano wires (Te NWs). The preparation method comprises: reducing preparation is carried out by using oxidized graphene (GO) powder and sodium polystyrene sulfonate (NaPSS) as raw materials according to a hydrothermal method to obtain RGO that can be dispersed in water; reducing preparation is carried out by using sodium tellurite (Na2TeO3) as a raw material and hydrazine hydrate (N2H4.H2O) as a reducing agent according to a hydrothermal method to obtain TeNWs that can be dispersed in watewr; after a certain number of RGO and Na2TeO3 materials are dispersed in water ultrasonically, RGO dispersion liquid and Te NWs dispersion liquid drip on a flexible glass fiber film successively with assistance of vacuum filtration and the glass fiber film is dried in a vacuum environment; annealing is carried out on the glass fiber covered with a composite film at a mixed atmosphere of Ar and H2 under the temperature of 200 DEG C for some time to obtain a composite thermoelectric film with the RGO and Te NWs. The provided preparation method has characteristics of simple and easily controlled process, short reaction time, low energy consumption, high security, good pollution-free performance, and excellent flexible film thermoelectric property and the like.

The invention relates to powerful moisturizing dressing with an epidermis repairing function. The powerful moisturizing dressing is prepared from the following components in percentage by weight: 0.03percent to 2 percent of high molecular sodium hyaluronate, 0.03 percent to 8 percent of sodium polystyrene sulfonate, 0.03 percent to 2 percent of xanthan gum, 0.02 percent to 2 percent of sodium polyacrylate, 0.05 percent to 3 percent of carbomer, 0.03 percent to 2 percent of low molecular sodium hyaluronate, 0.2 percent to 6 percent of an amino acid humectant, 0.01 percent to 5 percent of hydrolyzed glycosaminoglycans, 0.3 percent to 6 percent of lubrajel oil, 1 percent to 10 percent of glycerol, 0.5 percent to 10 percent of propylene glycol, 0.5 percent to 12 percent of butylene glycol, 0.1 percent to 8 percent of herba centellae extract, 0.01 percent to 3 percent of allantoin, 0.01 percent to 0.4 percent of preservative, 0.01 percent to 1 percent of pH (Potential of Hydrogen) regulator and the balance of water. The product provided by the invention has the effects of nourishing skin moisture, locking the skin moisture and repairing a skin barrier, and is applicable to inflammationskin, allergic skin, skin wounds and postoperative repairing of laser; a skin injury problem is solved fundamentally and skin injuries are not easy to recur after being healed.

The invention belongs to the field of nanofiber preparation technology, and relates to a preparation method of ionic liquid-doped conductive nanofiber. The preparation method comprises the steps of: firstly, preparing ionic liquid 1-ethyl-3-methylimidazolium acetate doped poly(3,4-ethylenedioxythiophene) / sodium polystyrene sulfonate precursor spinning solution, then preparing order ionic solution doped poly(3,4-ethylenedioxythiophene) / sodium polystyrene sulfonate nanofiber and then winding into a poly(3,4-ethylenedioxythiophene) / sodium polystyrene sulfonate nanofiber stranded conductor, and then conducting conductivity property testing on the prepared poly(3,4-ethylenedioxythiophene) / sodium polystyrene sulfonate nanofiber stranded conductor. The method is simple, convenient to operate and repeat, low in cost and strong in practicability, and the prepared ionic liquid-doped conductive nanofiber is good in conductivity property and tensile property and wide to apply.

The invention provides a graphene composite conductive material and a preparation method. The graphene composite conductive material is prepared from a conductive polymer monomer, graphene, a dispersant, an initiating system and deionized water, wherein the conductive polymer monomer is 3,4-ethylenedioxythiophene; the dispersant is sodium polystyrene sulfonate salt. The graphene composite conductive material has the advantages that the graphene is fully dispersed in the composite water-soluble conductive material, and a dense interaction microstructure is formed between the poly-3,4-ethylenedioxythiophene and the graphene by a particular in-situ polymerizing method, so that the electrical property index of the composite conductive ink is obviously improved by adding a small amount of graphene into the system; compared with the process without adding the graphene, the electric conductivity and seebeck coefficient are greatly improved.

The invention relates to the technical field of solar seawater desalination, and discloses a photothermal seawater desalination film made of a metal organic framework material. The photothermal seawater desalination film comprises a buoyancy layer, a salt resisting layer and a photothermal material layer, wherein the salt resisting layer and the photothermal material layer cover one surface of thebuoyancy layer in sequence; the buoyancy layer is provided with holes for water to pass through and provides buoyancy for the salt resisting layer and the photothermal material layer; the salt resisting layer is a single-walled carbon nanotube / metal organic framework film modified with sodium polystyrene sulfonate; the photothermal material layer is a multi-stage pore structure carbon film. The invention further discloses the single-walled carbon nanotube / metal organic framework film modified with sodium polystyrene sulfonate, the multi-stage pore structure carbon film and a preparation method thereof. The photothermal seawater desalination film has the advantages of low production cost, large-scale production, good durability and stability and the like, and has broad application prospects.

The invention discloses a method for treating wastewater of a rubber antioxidant (RD) production device, which is used for preparing active ingredients (water and an additive) of coal water slurry by synthesizing a polymer surfactant and adding the polymer surfactant into wastewater to prevent environmental pollution caused by the discharge of wastewater of the RD production device and realize reutilization of the of wastewater of the RD production device. The method comprises the following steps of: weighing 2-10 parts by mass of polystyrene, adding into 20-60 parts by mass of concentrated sulfuric acid serving as a sulfonating agent, and adding 0.01-0.1 part of silver sulfate; raising the temperature to 80-98 DEG C, and reacting under the stirring condition for 3-5 hours to obtain polystyrolsulfon acid serving as a reaction product; and adding the reaction product into 400-1,000 parts of wastewater of the RD production device, and adjusting the pH to 7 with sodium hydroxide to obtain a sodium polystyrene sulfonate solution serving as a coal water slurry additive.

The invention discloses a floating polypyrrole-TiO2 / floating bead photocatalyst with a light responding range capable of being extended to a visible light area, and a preparation method and application of the floating polypyrrole-TiO2 / floating bead photocatalyst. The preparation method comprises the steps of: adding distilled water in a mixed solution of butyl titanate and absolute ethyl alcohol and stirring to form TiO5 collosol; mixing and stirring fly ash floating beads and the collosol for loading; introducing polymethyl diallyl ammonium chloride and sodium polystytrene sulfonate to preprocess the mixture of the fly ash floating beads and the collosol; and loading a moderate polypyrrole on TiO2 / floating beads by adopting an in-situ polymerization process to obtain the composite polypyrrole-TiO2 / floating beads photocatalyst. Tests prove that the light responding range of the photocatalyst is extended to the visible light area, which has great significance in improving the using rate of the sun lights; and in comparison with the TiO2 / floating beads, the polypyrrole-TiO2 / floating beads can improve the degrading efficiency of methylene blue in visible lights.

The invention relates to a modified ternary positive electrode material and a preparation method thereof and a lithium-ion battery. According to the preparation method, coating treatment is carried out on a ternary positive electrode material by using a coating solution containing graphene and a water-soluble polymer to obtain the modified ternary positive electrode material, wherein the water-soluble polymer is one or more of polyvinylpyrrolidone, polydiallyl dimethyl ammonium chloride and sodium polystyrene sulfonate. According to the preparation method of the modified ternary positive electrode material provided by the invention, coating treatment is carried out on the ternary positive electrode material by using the graphene and the water-soluble polymer, so that the surface adhesion capacity of the graphene can be improved through the water-soluble polymer and the coating stability of the graphene is improved; and meanwhile, a surface coating layer of the obtained modified ternarypositive electrode material contains the graphene and the water-soluble polymer, so that the dispersity and the structural stability of the positive electrode material in subsequent battery production can be improved through the water-soluble polymer, such as the polyvinylpyrrolidone, thereby fully developing the characteristics of the graphene and the ternary material.

The invention provides a preparation method of an anion-exchange membrane with a univalence and multivalence selective separation function. The preparation method comprises the following steps: (1) preparing a PSS (sodium polystyrene sulfonate) / NaCl mixed solution and an HACC (chitosan quaternary ammonium salt) / NaCl mixed solution; (2) putting an anion-exchange membrane into an electrolytic deposition device; depositing PSS on the surface of the anion-exchange membrane; after immersing with pure water, depositing HACC on the surface of a PSS layer; continuously and alternately depositing to obtain a polyelectrolyte multilayered modified layer on the surface of the anion-exchange membrane; (3) preparing a DAS (4,4'-diazidodistyryl-2,2'-sodium disulfonate) solution; (4) immersing the polyelectrolyte multilayer modified layer into the DAS solution to enable DAS to permeate into a polyelectrolyte multilayer; (5) carrying out ultraviolet irradiation on the modified layer to enable the DAS, the polyelectrolyte multilayer and the surface of the membrane to be subjected to cross linking, so as to form a stable cross-linking modified layer; and (6) immersing the cross-linked membrane into a NaCl solution to remove DAS molecules, so as to obtain the anion-exchange membrane with the univalence and multivalence selective separation function. The anion-exchange membrane prepared by the preparation method has very good univalence selective separation function and stability.

The invention discloses a method for removing thallium in wastewater. According to the method, ozone is delivered in to thallium-containing wastewater for oxidizing; a mixed flocculating agent is added into the wastewater, wherein the mixed flocculating agent comprises sodium hydroxide, sodium sulfide, polymeric ferric sulfate and sodium polystyrenesulfonate; after flocculation, solid-liquid separation is completed; and a ceramic material is added into a liquid part for adsorption. With the method provided by the invention, chemical agent dose can be reduced; no secondary pollution is caused; and the efficiency is high. The method is suitable for large-scale applications, and the process is simple and controllable. Outlet water quality (thallium content) is stabilized at below 0.005mg / L. The adsorption material can be recycled. The method can be used for carrying out deep treatment upon low-concentration heavy-metal-ion-polluted wastewater.

A process or in-situ preparing the nanoneedles of three-element NaV6O15 monocrystal in large scale by in-situ reaction-crystallizing-etching method includes such steps as hydrothermal reaction between V2O5 powder, the aqueous solution of poly(styrene-alt-maleic acid, sodium salt (PSMA-Na) and catalyst HF at 120-200 deg.C, separating product, washing and distilled water and then absolute alcohol, and vacuum drying. It is possible to use sodium polystyrenesulfonate and sodium polyacrylate to replace PSMA-Na.

The invention provides a preparation method of an intelligent corrosion inhibition microcapsule. The method includes the following steps that a vacuum negative pressure method is adopted to load a selected corrosion inhibitor into a nano-carrier, and a capsule core of the microcapsule is obtained; poly(diallyldimethylammonium chloride) and poly(sodium styrenesulfonate) are adopted as raw materials to prepare a capsule wall; the capsule core is added into the wall material solution, the evenly-mixed sample is sealed for 5-10 min and then is centrifuged and dried, and the intelligent corrosion inhibition microcapsule with a core-shell structure is obtained. The method is simple and feasible; the maximum loading capacity of the obtained microcapsule to the corrosion inhibitor can reach 3%-4% by mass; the microcapsule obtained after encapsulation is stable in structure, and the purpose of slow release can be achieved; besides, water can be adopted as a triggering agent for releasing the corrosion inhibitor from the carrier, and thus a good foundation is provided for applying the microcapsule to in-service coating systems.

The invention discloses a water-soluble PEDOT-PSS dispersion and a homogeneous polymerization preparation method thereof. The preparation method has the advantages as follows: in the preparation method, a mixture of deionized water and a certain organic solvent is used as a solvent of a reaction system, so that an oil-soluble monomer EDOT and a water-soluble macromolecular sodium polystyrenesulfonate can be dissolved in the reaction system to form a transparent solution and generate a homogeneous polymerization reaction; after completion of the polymerization reaction, a mixed solution obtained in the reaction is dialyzed to obtain the water-soluble PEDOT-PSS dispersion. The water-soluble PEDOT-PSS dispersion prepared by the preparation method has good dispersibility, relatively good electrical performance and film-forming performance, and can be applied to the fields of flexible transparent electrode materials, antistatic materials and electrochromic materials; the preparation method is simple and feasible and is suitable for industrial production.