24 results about "Sodium Polystyrene Sulfonate" patented technology

The invention relates to the technical field of ceramic glaze water, in particular to ceramic glaze water capable of continuously releasing negative ions based on a rare earth material and a preparation method of the ceramic glaze water. Comprising a negative ion material, sodium polystyrenesulfonate, an immobilized bacterium preparation, carbon nanotube modified graphene oxide, turbo stone, modified sepiolite, nano-zinc oxide, sodium hexametasilicate, polyethylene glycol, a composite antioxidant, a coalescing agent, a slow-release carrier and deionized water. The negative ion material is formed by mixing low-radioactivity commercial rare earth powder, tourmaline and opal according to the mass ratio of (3-4): (4-5): 1. According to the invention, the preparation cost of the glaze water is reduced and the production efficiency is improved by optimizing the composition and compounding mode of the negative ion material, enhancing the stability of the bacterial preparation and simplifying the preparation process, meanwhile, the negative ion release durability, the ceramic surface adhesive force and the antibacterial property are remarkably enhanced, and the requirements of industrial production and practical application are met.

The application relates to the technical field of ceramic materials, and provides a SiC-whisker-reinforced alumina ceramic material with whisker directional arrangement and a preparation method thereof. SiC whiskers are magnetically modified by being coated with cobalt, then the magnetically modified SiC whisker powder is mixed with Al2O3 ceramic slurry which has been ball milled, and sodium polystyrene sulfonate is added to the mixture for sufficient mixing in a dispersing machine. Then, an electric field and a magnetic field are simultaneously applied to the mixed solution, so that the SiC whiskers are turned under the action of the electric field and the magnetic field, and directional arrangement of the SiC whiskers in a certain direction is realized. The solution is immediately transferred into a freeze-drying machine to freeze and fix the directional arrangement, and then vacuum sublimation drying is carried out at low temperature, so that the Al2O3-Y2O3-SiC ceramic material with SiC whisker directional arrangement is prepared. w The mixed powder is subjected to hot-pressing sintering to prepare the SiC-whisker-reinforced alumina ceramic material with obvious whisker directional arrangement. The ceramic material can be used for preparing a ceramic cutting tool, and is used for high-efficiency cutting of a nickel-based high-temperature alloy.

The present invention provides a lead-acid battery repair fluid, and its preparation and use methods. The repair fluid comprises the following raw materials: MXene, ammonium acetate, ammonium bicarbonate, sodium ethylenediaminetetraacetate (EDTA), montmorillonite, polymaleic anhydride, sodium polystyrene sulfonate, chloroethyl polyvinylpyridinium salt, polyvinylpyrrolidone (PVP), sodium alginate, and deionized water. The repair fluid can effectively dissolve lead sulfate crystals and form a durable and stable protective film on the electrode plates, thereby regenerating the lead-acid battery while effectively preventing further lead sulfate crystals from adhering to the electrode plates, thereby increasing the battery's service life. Furthermore, the raw materials used in the present invention are safe and harmless to the human body, and the preparation method is simple, efficient, and environmentally friendly.

The invention belongs to the field of pharmaceutic adjuvants, and particularly relates to a method for preparing sodium polystyrenesulfonate resin through a centrifugal interfacial membrane emulsification technology and application of the sodium polystyrenesulfonate resin. The method comprises the following steps: by taking a mixed solvent of styrene, divinylbenzene and benzoyl peroxide as a dispersion phase and a polyvinyl alcohol solution as a continuous phase, carrying out centrifugal interfacial membrane emulsification, then carrying out suspension polymerization reaction to obtain polystyrene-divinylbenzene microspheres with narrow particle size distribution, and finally, carrying out sulfonation reaction and alkali exchange to obtain the polystyrene-divinylbenzene composite microsphere. The final product sodium polystyrenesulfonate resin is obtained. The resin prepared by controlling the centrifugal rotating speed, the centrifugal time and the using amount of the dispersing agent, the cross-linking agent and the sulfonating agent and combining a centrifugal interfacial membrane emulsification technology is in a dry golden brown powder shape, the average particle size is 60-100 microns after the resin is dispersed in water, and particles of the resin are uniformly distributed and are of a spherical structure. Meanwhile, the preparation method is simple in preparation process, short in operation time, low in energy consumption, good in economic benefit, suitable for industrial production and wide in market application prospect.

The invention discloses a saccharomyces boulardii colon delivery system which comprises the following steps: the survival rate in gastric juice is enhanced, and the residence time in the colon is increased, so that the treatment effect of the saccharomyces boulardii is enhanced. Saccharomyces boulardii is taken as a research object, in order to improve the bioavailability of the Saccharomyces boulardii in gastrointestinal tracts and prolong the adhesion time of bacteria in intestinal tracts, a layer-by-layer electrostatic self-assembly method is adopted, PDAD (poly dimethyl diallyl ammonium chloride), PSS (sodium polystyrene sulfonate), CS (chitosan) and SA (sodium alginate) are taken as biological membranes to coat the Saccharomyces boulardii, and the coated Saccharomyces boulardii is prepared. Then a series of characterization is carried out, and the effect of the delivery system is verified through in-vitro artificial gastric juice tolerance tests and mouse intestinal colonization.

The present invention relates to a photovoltaic module comprising, amongst others, a lower electrode consisting of two layers: a first layer comprising a polymer blend of poly(3,4-ethylenedioxythiophene) and sodium poly(styrene-sulfonate) covering the support and having an average thickness between 50 nm and 150 nm and an organic fibrous structure, and a second layer based on an organic polymer or molecule covering said first layer, the lower electrode having a lower surface in contact with the support and an upper surface, and an upper electrode comprising a polymer blend of poly(3,4-ethylenedioxythiophene) and sodium poly(styrene-sulfonate) covering said photovoltaic active layer, said electrode being continuous, having an average thickness of between 100 nm and 400 nm and an organic fibrous structure.

The invention discloses a polyelectrolyte multilayer film loaded gold-palladium bimetallic nanoparticle catalyst, which is characterized in that cationic polyelectrolyte poly (diallyldimethylammonium chloride) PDDA and anionic polyelectrolyte sodium polystyrenesulfonate (PSS) are used as construction materials, a layer-by-layer self-assembly technology is adopted to prepare a polyelectrolyte multilayer film, and the polyelectrolyte multilayer film is marked as (PDDA / PSS) n + 0.5, and firstly loading gold nanoparticles on the multilayer film through an ion exchange-in-situ reduction method, and then loading palladium nanoparticles on the multilayer film to obtain the catalyst (PDDA / PSS) (n + 0.5 / a) AubPd for catalyzing the degradation of p-nitrophenol. According to the polyelectrolyte multilayer film loaded gold-palladium bimetallic nanoparticle catalyst disclosed by the invention, by selecting and designing the material and the layer number of the multilayer film carrier and the proportion of gold and palladium bimetallic, the synergistic catalysis of the polyelectrolyte film and the gold-palladium bimetallic nanoparticles is exerted; the catalytic efficiency and the degradation effect of the catalyst in the p-nitrophenol degradation process are obviously improved.

This invention discloses a novel method for preparing a clean fuel additive, relating to the field of clean fuel additive technology. Its components include: a main cleaning agent: Mannich base; a dispersant: polyetheramine; a surfactant: highly active polyisobutylene; an antioxidant: N,N-di-sec-butyl-p-phenylenediamine; an octane booster: dimethyl carbonate; a solvent: 120# solvent oil; a combustion improver: C9-C11 mixed olefins; a stabilizer: trimethylolpropane; an ignition promoter: nitrobenzene; and auxiliary additives: n-dodecane, sodium polystyrene sulfonate, and eugenol methyl ether. This invention achieves a significant synergistic effect among the core components such as Mannich base, polyetheramine, polyisobutylene, amine antioxidants, and dimethyl carbonate. This synergistic effect allows the additive to comprehensively optimize the cleanliness, anti-knock properties, stability, and combustion efficiency of fuel at a relatively low total addition amount.

According to a first aspect, the invention relates to a process for the production, preferably continuous, of calcium sulfate alpha hemihydrate, the process comprising: - the preparation of an aqueous gypsum suspension comprising gypsum in particulate form, water and at least one superplasticizing polymer selected from phosphate polyethers, sulfonated melamine formaldehyde (SMF) and sodium poly(styrene sulfonate); - the calcination of the aqueous gypsum suspension at a suitable temperature and pressure to obtain a suspension of calcium sulfate alpha hemihydrate; - optionally, the filtration of the calcium sulfate alpha hemihydrate suspension to separately obtain a concentrated alpha hemihydrate suspension and an aqueous filtrate.The invention also relates, according to a second aspect, to a process for preparing a gypsum-based product comprising the preparation of a plaster suspension comprising calcium sulfate alpha hemihydrate obtained by the process according to the invention. Furthermore, the invention relates to a plaster-based product obtained using a process according to the invention. The invention also relates to a gypsum-based product obtained using a process according to the invention, such as a plasterboard. Figure 2.

This invention discloses a lip mask composition and its preparation method. The lip mask composition comprises a film-forming agent, a thickener, an emulsifier, oil, and water. The film-forming agent comprises polyvinyl alcohol with a viscosity of less than 35 mPa·s, sodium polystyrene sulfonate, and *Pteris vittatum* polysaccharide. The thickener comprises sodium alginate and lithium distearate dimethylammonium montmorillonite. During preparation, an oil phase and an aqueous phase are prepared separately. Sodium alginate is added to the aqueous phase, and then the oil phase is added to the aqueous phase. After homogenization, lithium distearate dimethylammonium montmorillonite is added, followed by homogenization and defoaming. This lip mask composition has a novel user experience, a noticeable immediate visual effect (the appearance of the lip mask can be observed to change), and a long-lasting effect. After the film is formed, it can be peeled off completely, which can reduce the evaporation of skin moisture and help the moisturizers in the formula to gently penetrate into the stratum corneum without irritating the skin barrier. After peeling off the film, old keratin on the lips is removed, leaving the lips feeling refreshed, breathable, and non-sticky. It immediately improves dry lips and brightens lip color after use.

The invention discloses sodium polystyrenesulfonate modified chitosan as well as a preparation method and application thereof, and relates to the technical field of biomedical materials. The modified chitosan provided by the invention can generate far better adsorption capacity with the histone by virtue of weak amino positive electricity, so that the adsorption of the chitosan on the damage-related molecular mode of the histone is realized, and the long-standing technical bottlenecks of poor selectivity, low efficiency and the like in the field of histone separation and adsorption are solved; and the preparation method is simple and high in biological safety, and has relatively strong technical frontier and market application potential.

The invention discloses a self-repairing lithium ion battery material and a preparation method thereof. The preparation method comprises the following steps: (1) taking SiO2, diluting, drying and crushing; (2) taking magnesium powder and SiO2 obtained in the step (1) to react at high temperature, and washing and drying a reaction product to obtain silicon particles; (3) dissolving polyacrylic acid in deionized water, then adding gallium-indium alloy, sodium polystyrene sulfonate and polyurea carbamate, and performing ultrasonic mixing to obtain a polymer solution; (4) adding an active conductive filler and the silicon particles treated in the step (2) into the polymerization liquid, and stirring and mixing under an ultrasonic condition; and (5) loading the material treated in the step (4) into a tubular reactor, and introducing acetylene and carbon dioxide for vapor deposition treatment to obtain the electrode material. The self-repairing effect of the electrode material can be achieved, the three-dimensional network structure with the buffering capacity is constructed to absorb the volume change energy of the electrode material in the charging and discharging process, and the cycling stability is improved.

The invention belongs to the technical field of high polymer materials, and particularly relates to a preparation method and application of a PEDOT / PSS polymer. According to the PEDOT / PSS polymer provided by the invention, EDOT is taken as an initial raw material, a peroxy acid solution or a heteropolyacid solid is taken as a catalyst, sodium polystyrenesulfonate is taken as a doping agent, a stearate surfactant is taken as a dispersing agent, dimethyl carbonate is taken as a reaction solvent, and chemical oxidative polymerization is carried out under a stirring condition to obtain the PEDOT / PSS polymer. The method provided by the invention has the advantages that the reaction is rapid, the reaction time is short, the temperature condition is easy to control, the post-treatment is simple, the polymer yield and the conductivity are high, and the like, and through detection, the conductivity of the obtained PEDOT / PSS polymer is up to 458 S.cm <-1 >.

This invention discloses a sodium salt-modified nickel oxide transport layer, a perovskite light-emitting diode, and its preparation method. The invention modifies the nickel oxide film by introducing a certain concentration of sodium salt into a dispersion of nickel oxide nanoparticles, thereby improving the quality of the nickel oxide film and enhancing the performance of the light-emitting diode. The addition of sodium polystyrene sulfonate (PSSNa) reduces the surface roughness of the nickel oxide film and improves its flatness and uniformity. Simultaneously, NiO... x - The perovskite layer interface quality is improved, the perovskite film surface is smoother and more uniform, with higher crystallinity, which inhibits NiO. x The photoluminescence quenching at the perovskite interface significantly improves the performance of the perovskite light-emitting diodes prepared based on sodium salt modification in this invention.

The environment-friendly clean maintenance agent comprises the following components: a silane coupling agent 4140, neutral silica sol, an alkyl glycoside aqueous solution, ammonium oxide, limonene, sodium polystyrenesulfonate, polyether amine D230 and water. The invention further discloses a preparation method and application of the environment-friendly clean maintenance agent. The cleaning and maintaining agent disclosed by the invention can be used for effectively cleaning kitchen oil fume and maintaining the super-hydrophilic coating, and is free of pungent smell and harmless to the environment.

The present invention belongs to the technical field of pollution control for membrane water treatment, and specifically relates to a method for preparing a carbon nanotube blended conductive membrane and a method for controlling algae pollution by coupling the membrane with electrically activated peracetic acid. Carbon nanotubes modified with oxygen functional groups, polyvinyl pyrrolidone, and polyether sulfone are dispersed in an organic solvent to prepare a casting solution, a base membrane is prepared by a flat-plate scraping process, and then the base membrane is modified with conductive polyaniline-sodium polystyrene sulfonate by an in-situ cross-linking method to prepare a carbon nanotube blended conductive membrane. In a coupled membrane filtration system, peracetic acid is used as an oxidant, and the peracetic acid is activated in situ by applying a voltage to the membrane to generate active species with oxidizing ability. The algae pollutant solution is used as the target water body, and the filtration system is used to achieve efficient mitigation of membrane pollution caused by algae pollutants.

The invention relates to a method for improving the light and hot water evaporation capacity of Ag / PEDOT (poly (3, 4-ethylenedioxythiophene)) on a seaweed non-woven fabric. The method comprises the following steps: (1) fully soaking the seaweed non-woven fabric in deionized water, flattening, drying, soaking into hexadecyl trimethyl ammonium chloride with the concentration of 0.25 g / L, treating for 1 hour at the bath ratio of 100: 1, washing and drying; (2) preparing a dispersion liquid containing 0.15 mol / L of ammonium persulfate, 0.0015 mol / L of lauryl sodium sulfate, 0.0002 mol / L of sodium polystyrenesulfonate, 0.04 mol / L of 4-ethylenedioxythiophene by using deionized water, stirring for 30 minutes, adding silver nitrate until the concentration is 0.004 mol / L, carrying out ultrasonic treatment for 1 hour, and reacting for 8 hours at the constant temperature of 40 DEG C to prepare a silver / poly (3, 4-ethylenedioxythiophene) compound dispersion liquid; and (3) diluting the obtained Ag / PEDOT compound dispersion liquid by 80 times, immersing the seaweed non-woven fabric obtained in the step (1) according to a bath ratio of 100: 1, treating for 30 minutes, then taking out the fabric, washing and drying. Tests show that the light and hot water evaporation capacity of the Ag / PEDOT compound on the seaweed non-woven fabric can be remarkably improved by utilizing the method disclosed by the invention.

The invention relates to the technical field of ceramic materials, and provides a SiC whisker reinforced alumina ceramic material with directionally arranged whiskers and a preparation method thereof.The SiC whiskers are magnetized and modified by coating the SiC whiskers with cobalt, then the magnetized and modified SiC whisker powder and ball-milled Al2O3 ceramic slurry are mixed, and the SiC whisker reinforced alumina ceramic material with directionally arranged whiskers is obtained. And then adding sodium polystyrenesulfonate and fully mixing in a dispersion machine. And then simultaneously applying an electric field and a magnetic field in the mixed solution, so that the SiC whiskers turn under the action of the electric field and the magnetic field, and directional arrangement of the SiC whiskers in a certain direction is realized. The preparation method comprises the following steps: preparing a solution containing Al2O3-Y2O3 and SiCw, timely transferring the solution into a freeze dryer to freeze and fix the directional arrangement, carrying out vacuum sublimation drying at a low temperature to prepare Al2O3-Y2O3-SiCw mixed powder with directional arrangement of SiC whiskers, and carrying out hot pressed sintering on the mixed powder to prepare the SiC whisker reinforced alumina ceramic material with remarkable directional arrangement of whiskers. The ceramic material can be used for preparing a ceramic cutting tool and is used for efficiently cutting nickel-based high-temperature alloy.

The invention relates to the technical field of high polymer materials, and discloses a PDDA / PSS / BC exchange membrane and a preparation method and application thereof, the PDDA / PSS / BC exchange membrane comprises a bacterial cellulose membrane and a multi-layer PDDA / PSS composite membrane loaded on the bacterial cellulose membrane; the PDDA / PSS composite membrane comprises a poly (diallyldimethylammonium chloride) membrane and a poly (sodium 4-styrenesulfonate) membrane loaded on the poly (diallyldimethylammonium chloride) membrane. The PDDA / PSS / BC exchange membrane has good hydrophilicity, chemical stability and excellent mechanical properties, and has potential application value in the field of preparation of high-performance fuel cell membranes.

The invention discloses a polyelectrolyte multilayer film loaded metal nanoparticle catalyst, which is characterized in that cationic polyelectrolyte poly (diallyldimethylammonium chloride) PDDA and anionic polyelectrolyte sodium polystyrenesulfonate (PSS) are selected as construction materials, a layer-by-layer self-assembly technology is adopted to prepare a polyelectrolyte multilayer film, and the polyelectrolyte multilayer film is marked as (PDDA / PSS) n or (PDDA / PSS) n + 0.5, and then loading metal nanoparticles silver or palladium on the multilayer film through an ion exchange-in-situ reduction method to obtain the catalyst (PDDA / PSS) n / Ag or (PDDA / PSS) n + 0.5 / Pd for the oxidation-reduction reaction. According to the polyelectrolyte multilayer film loaded metal nanoparticle catalyst disclosed by the invention, by selecting and designing the material and the number of layers of the multilayer film carrier, the synergistic catalysis of the polyelectrolyte and the metal nanoparticles is exerted, the catalytic performance of the catalyst is remarkably improved, and especially the degradation effect on methylene blue in printing and dyeing wastewater is improved.

The application discloses a high-multiplying lead-acid battery negative electrode material and a preparation method thereof, and belongs to the technical field of electrochemistry. A lead-containing compound, modified acetylene black, deionized water and ethanol are added into a flask, ultrasonic treatment is conducted, filtration is conducted, and drying is conducted to obtain a composite material; polyvinyl alcohol, sodium polystyrene sulfonate and deionized water are mixed to obtain a premix 2, the premix 2 is poured into a premix 1 obtained by mixing and grinding lead sulfate, conductive graphite, the composite material and barium sulfate, stirring, grinding, coating, compaction and drying are conducted to obtain the negative electrode material. The zinc oxide and indium oxide are firmly present in the modified acetylene black, and in addition to the high dispersity of the modified acetylene black and the lead-containing compound in the negative electrode material, the negative electrode material can improve the distribution of the conductive graphite, is more conducive to ion and electron transmission, can inhibit hydrogen evolution, improve the hydrogen evolution overpotential, improve the charge and discharge acceptance capacity and efficiency of the electrode, can also reduce the electrode internal resistance and polarization, relieve the sulfation of the negative electrode, improve the cycle performance of the electrode and prolong the service life of the electrode.

This application relates to the field of working reference reagents, specifically disclosing a method for improving the quality of disodium ethylenediaminetetraacetate (EDTA), comprising the following steps: dispersing crude EDTA in water, adjusting the pH of the system, adding sodium carbonate to induce salt precipitation, adding a negatively charged polymer and stirring, allowing it to stand, adding activated carbon for adsorption, filtering to obtain a filtrate, wherein the negatively charged polymer includes one or more of sodium polyacrylate, polyaspartic acid, sodium polystyrene sulfonate, and sodium alginate; ultrafiltration of the filtrate obtained in step I, and adding anhydrous ethanol to the resulting liquid phase, controlling the volume ratio of anhydrous ethanol to filtrate to be 1.5:(2-4.5); stirring and filtering; drying the resulting filter residue to obtain disodium EDTA. The method of this application involves multiple interconnected steps, forming a rigorous and streamlined overall scheme, which improves the purity of disodium EDTA to 99.5% or higher.

The present invention belongs to the field of polymer materials technology, and in particular relates to a method for preparing a PEDOT:PSS dispersion by synthesizing and regulating a mixed ion with different molecular weights. The present invention first provides a composition for improving the electrical conductivity of a PEDOT:PSS dispersion, the composition comprising a 3,4-ethylenedioxythiophene monomer and a counter-ion combination of different molecular weights; the counter-ion combination of different molecular weights is poly(4-styrene sulfonic acid) and sodium poly(4-styrene sulfonate) of different molecular weights. The PEDOT:PSS dispersion prepared by the method of the present invention has significantly increased electrical conductivity, and zeta potential results confirm its stable performance. The subsequently prepared PEDOT:PSS film has high light transmittance.

The invention discloses a fluorescent nano-enzyme selective oxidation-based malachite green residue total amount detection method and a fluorescent nano-enzyme preparation method, a novel nano-enzyme PSS / ZIF-67 of a sodium polystyrenesulfonate (PSS) modified metal organic framework (ZIF-67) is prepared by using a coprecipitation method, and then the fluorescent nano-enzyme selective oxidation-based malachite green residue total amount detection method is obtained based on electrostatic assembly between electronegative PSS / ZIF-67 and electropositive neutral red (NR). Based on the selective catalytic oxidation effect of the NR / PSS / ZIF-67 on the leucomalachite green and the static quenching (SQE) and fluorescence inner filter effect (IFE) between the NR / PSS / ZIF-67 and the leucomalachite green, a fluorescence detection method for instantly detecting the total amount of the malachite green and the metabolite of the malachite green is established. The integration of conversion and detection of malachite green and metabolite thereof is realized. The process is simple, convenient and rapid, and the oxidative conversion and detection process can be completed within 1 min.