169 results about "ALLYL SUCROSE" patented technology

This invention discloses a method and sensor for adiponectin detection using a polyaniline and polyacrylic acid-modified wire mesh carbon electrode, relating to the field of adiponectin detection technology. The method involves electrochemically activating the wire mesh carbon electrode, electropolymerizing it to form a polyaniline-polyacrylic acid composite modification layer, immobilizing adiponectin monoclonal antibody after activation with N-hydroxysuccinimide and 1-ethyl-3-(3-dimethylaminopropyl)carbodiimide, blocking the antibody with bovine serum albumin, and reacting it with a serum sample. The adiponectin concentration is determined based on the peak potential shift and peak current change. This invention simultaneously achieves both conductive transport and antibody immobilization, reduces non-specific adsorption and serum interference, and improves detection sensitivity, repeatability, and quantitative accuracy.

A method for producing a metal-organic framework. The method includes: dissolving an acid compound having terephthalic acid as its main molecular structure, polyacrylic acid, and a silver-containing compound to produce an intermediate A; mixing a titanium-containing metal oxide cluster into the intermediate A to produce an intermediate B; heating the intermediate B to produce an intermediate C in a solid form; and repeatedly dissolving and centrifuging the intermediate C to produce a metal-organic framework.

This invention discloses a treatment process for high-concentration sulfate wastewater, belonging to the field of wastewater purification technology. The invention first provides a multifunctional composite ion sieve, the raw materials of which include magnetic core microspheres, calcium aluminate precursor components, heavy metal chelating agents, scale inhibitors, antioxidants, antibacterial agents, host-guest recognition agents, polysaccharide compounds, polyacrylic acid compounds, crosslinking agents, and initiators. The ion sieve is prepared through steps including magnetic core preparation, calcium aluminate precursor functional layer deposition, small molecule modification layer loading, and pH-responsive outer shell coating. In use, the ion sieve is added to wastewater and stirred for adsorption. After adsorption saturation, solid-liquid separation is achieved through magnetic separation, and the material is regenerated and recycled sequentially using desorption and reconstruction solutions.

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

The invention relates to application of graphene-(RADA-IKVAV)-pranoprofen, eye drops and a preparation method of the eye drops. The invention relates to graphene-(RADA-IKVAV)-pranoprofen, the graphene-(RADA-IKVAV)-pranoprofen comprises graphene-polyacrylic acid, self-assembled oligopeptide RADA-IKVAV and pranoprofen, the self-assembled oligopeptide RADA-IKVAV is connected with the graphene-polyacrylic acid through a chemical bond, and the pranoprofen is loaded on the surface of the graphene-polyacrylic acid. The eye drops provided by the invention comprise graphene-(RADA-IKVAV)-pranoprofen, so that the drug loading capacity of pranoprofen in the eye drops is increased, the bioavailability of drugs is improved, and the eye drops are used for inhibiting eye inflammation; the coupled oligopeptide RADA-IKVAV simulates an extracellular environment, provides a suitable microenvironment for eyes, promotes nerve repair and regeneration by influencing nerve growth factors, and promotes optic nerve repair.

This invention discloses a method for preparing a multifunctional slow-release fertilizer. First, a porous carrier is prepared by co-precipitation and calcination of iron tailings acid leaching solution and aluminum salts. Nutrient solution is loaded onto the carrier, dried, and granulated to obtain fertilizer particles. A bio-based composite coating precursor solution is prepared by mixing nanocellulose whiskers, sodium alginate, polyacrylic acid, and fumed silica, and a calcium chloride-chitosan solution is used as a crosslinking agent to obtain fertilizer particles. Finally, fluidized bed coating technology is used to sequentially spray the coating precursor solution and crosslinking agent solution onto the surface of the fertilizer particles. After two coating processes and drying, a multifunctional slow-release fertilizer is obtained. This invention combines the preparation of an industrial solid waste resource utilization carrier, the construction of a bio-based composite coating, and a rhizosphere-responsive slow-release design to prepare a multifunctional slow-release fertilizer. This fertilizer not only has low preparation cost but is also rich in nutrients, has good slow-release performance, and excellent mechanical stability.

This invention discloses a cyano-functionalized polyacrylic acid-based composite solid electrolyte material and its preparation method and application, belonging to the field of lithium battery technology. The method includes the following steps: (1) adding TMG, bromoacetonitrile, and bromopropylene to polyacrylic acid for catalytic esterification to obtain PAA-g-(CN / Vinyl); (2) mixing the PAA-g-(CN / Vinyl) with a photoinitiator and a lithium salt to obtain a polymer composite electrolyte precursor solution, followed by curing and crosslinking to obtain the cyano-functionalized polyacrylic acid-based composite solid electrolyte material. Starting from molecular design, this invention forms an integrated high-performance solid electrolyte system through a one-step controllable esterification reaction and subsequent composite curing, providing an innovative electrolyte solution for the development of safe, high-energy-density solid-state batteries.

The application discloses a kind of based on asphalt pavement milling material's prefabricated asphalt brick and its preparation method, belong to recycling technology field of renewable resources, the method includes: waste asphalt pavement is broken and is screened to obtain recycled asphalt mixture;First with regenerant, aromatic compound and basalt fiber dry mixing and standing activation;Again with cement, silica ash dry mixing;Subsequently, add water and polyacrylic acid sodium wet mixing mortar;In the state of stirring, add emulsified asphalt and mix to obtain mixing material;Finally, vibration forming, demolding curing prefabricated asphalt brick is prepared.Compared with prior art, by step mixing process and the synergistic effect of multiple functional components, high-mixing resource utilization of asphalt milling material is realized.The prefabricated asphalt brick prepared has a dense structure, high bulk density, high compressive strength and excellent water resistance, effectively solves the problem of milling material solid waste disposal, is economical and environmentally friendly, and is suitable for popularization and application.

The application discloses a kind of transparent anti-fog composite coating and its preparation method and application, belong to coating material technical field.The application is prepared with deionized water as solvent, respectively, and the mixture of two is obtained SiO2 / PAA anti-fog transparent composite coating with silica nanoparticle dispersion liquid and polyacrylic acid solution;Subsequently, substrate is cleaned, dried and is treated by plasma surface activation, and coating is added to the surface of pretreated substrate after using blade coating film, finally, transparent anti-fog composite coating is obtained in hot curing in air drying oven.The transparent anti-fog composite coating prepared by the application has good anti-fog performance, the average transmittance of visible light (380~750 nm) reaches 92%, has good durability and self-repairing function.The coating and its coated product can be applied in medical devices, optical devices, building and automotive glass and other fields.

This invention discloses a high- and low-temperature resistant and anti-aging building wire and its preparation method, relating to the field of wire and cable technology. The high- and low-temperature resistant and anti-aging building wire of this invention comprises: a wire core; and a modified polyvinyl chloride (PVC) insulation layer covering the wire core; wherein the modified PVC insulation layer comprises at least the following raw materials in parts by weight: 80-100 parts of PVC; 10-20 parts of hydrogenated nitrile rubber; 5-15 parts of PVC-g-polyacrylic acid graft copolymer; 10-25 parts of vinyltriethoxysilane coupling agent modified boron nitride / magnesium hydroxide composite flame retardant; 3-8 parts of linoleic acid modified polyhedral oligomeric silsesquioxane; 4-8 parts of heat stabilizer; 3-6 parts of plasticizer; 1.5-3.5 parts of lubricant; 0.5-2 parts of antioxidant; and 0.3-1.5 parts of ultraviolet absorber. The building wire prepared by this invention has wide temperature range adaptability, aging resistance, and flame-retardant and smoke-suppressing properties.

This invention relates to an aqueous binder for lithium-ion battery negative electrodes, its preparation method, and its application. The raw materials for the aqueous binder include unsaturated carboxylic acid monomers, unsaturated nitrile monomers, unsaturated amide monomers, acrylate monomers, and functional monomers. The functional monomers include at least one selected from hydroxyethyl acrylate, hydroxyethyl methacrylate, methoxy polyethylene glycol acrylate, allyl polyethylene glycol, and allyl polyethylene glycol monomethyl ether. The aqueous binder of this invention incorporates acrylate monomers and functional monomers, which can lower the glass transition temperature of the copolymer while maintaining high peel strength. By introducing functional monomers with long side chains, the double-layer mechanism of polyacrylic acid itself and the steric hindrance effect of the long side bonds of the functional monomers are utilized as dispersants to achieve stable dispersion of the negative electrode slurry particles. The precipitation polymerization method can significantly reduce the internal resistance of lithium-ion batteries and improve peel strength.

Disclosed herein are oral care compositions, in particular oral care compositions having enhanced stability of stannous ions. According to at least one aspect, there is provided an oral care composition comprising: a source of stannous ions; and crosslinked polyacrylic acid and / or salts thereof, wherein the weight ratio of the source of stannous ions to the crosslinked polyacrylic acid and / or salts thereof of the personal care composition is from about 4: 1 to about 1 :4.

This invention relates to the field of carbon nanotube technology, specifically disclosing a high-viscosity carbon nanotube conductive paste and its preparation method. The raw materials for this high-viscosity carbon nanotube conductive paste include ultra-long single-walled carbon nanotubes, short-cut multi-walled carbon nanotubes, conductive carbon black, carboxyl-terminated hyperbranched polyester-polyethylene glycol block copolymer, polyacrylic acid, fluorinated silane coupling agent, γ-butyrolactone, and N-methylpyrrolidone. The high-viscosity carbon nanotube conductive paste provided by this invention achieves uniform dispersion, low volume resistivity, excellent anti-settling properties, and good coating processability of the carbon nanotube conductive paste under high solids content through the synergistic effect of the carboxyl-terminated hyperbranched polyester-polyethylene glycol block copolymer, the fluorinated silane coupling agent, and polyacrylic acid, combined with multi-stage grinding and high-pressure homogenization processes.

This application belongs to the field of secondary battery technology, specifically relating to an adhesive, a secondary battery, and an electrical device. The adhesive provided in this application includes a polyacrylic acid backbone; it also includes grafted chains containing hydroxyl groups, grafted chains containing nitrogen atoms, grafted chains containing borate groups, grafted chains containing phosphate ester groups, and grafted chains containing thiol groups. By introducing multiple grafted chains onto the polyacrylic acid backbone, this application enables the adhesive to form a multidimensional synergistic reinforcement structure of "mechanics-electrochemistry," resulting in multidimensional adhesion between the adhesive and silicon-based materials, and improving the conductivity of the adhesive, thereby enhancing the cycle and rate performance of the battery.

This invention discloses a non-close-packed rainbow superlattice two-dimensional thin film, its preparation method, and its applications, belonging to the field of metal nanomaterials technology. First, noble metal nanoparticles are modified with polystyrene-thiol as the modifier. Then, through the solvent effect, the hydrophobic interaction between the modified polystyrene-thiol and the block copolymer polystyrene-polyacrylic acid ligand is enhanced, causing the discrete noble metal nanoparticles to assemble into clusters. The clusters are dispersed in water, and a perfluorodecylthiol anhydrous ethanol / n-hexane solution is added, resulting in a non-close-packed rainbow superlattice two-dimensional thin film at the liquid-liquid interface. This invention achieves the control of the optical properties of the superlattice two-dimensional thin film, exhibiting strong versatility and applicability to noble metal nanoparticles with various morphologies. The prepared non-close-packed rainbow superlattice two-dimensional thin film possesses rich and tunable colors, showing promising application prospects in display, sensing, and anti-counterfeiting fields.

This invention proposes a long-term low-conductivity composite treatment method for the inner cavity of a hydrogen fuel cell stack heat sink core. The method includes pre-treating the surface of the heat sink core, coating it with a slurry, curing it, and cleaning it. The slurry comprises pH-responsive slow-release microcapsules, which, from the inside out, consist of an ion trapping agent and mesoporous silica grafted with polyacrylic acid. A coating is formed on the surface of the heat sink core by coating and curing the slurry. This slurry integrates the atomic-level physical barrier function of graphene with the intelligent chemical trapping function of the pH-responsive microcapsules, achieving multi-layered protection of "physical barrier as the main component, chemical trapping as a supplement, and intelligent response." This allows the coolant conductivity to be stably controlled below 5 μS / cm under dynamic operating conditions for thousands of hours.

This application provides a secondary battery and an electrical device. The secondary battery includes a negative electrode sheet, which includes a negative electrode film layer. The negative electrode film layer includes a first active layer and a second active layer. The first active layer and / or the second active layer includes silicon, and the mass percentage of silicon in the second active layer is higher than the mass percentage of silicon in the first active layer. The first active layer includes a first composite binder, and the second active layer includes a second composite binder. The first composite binder and / or the second composite binder include binder A and binder B. Binder A is styrene-butadiene rubber, and binder B is selected from one or more of polyacrylic acid binders, polyacrylonitrile, hydroxypropyl methylcellulose, methylcellulose, carboxymethyl cellulose, polyvinyl alcohol, acrylonitrile copolymer, sodium alginate, chitosan, and their derivatives. The mass ratio of binder A to binder B in the first composite binder is higher than the mass ratio of binder A to binder B in the second composite binder.

This invention discloses a self-adhesive hydrogel photoelectrode, array, device, application, and evaluation method. The self-adhesive hydrogel photoelectrode comprises a self-adhesive hydrogel optical fiber and at least one flexible fiber electrode. The optical fiber has a core-skin structure; the skin is composed of adhesive polymers such as polyvinyl alcohol, polyacrylic acid, and polydopamine, while the core is a transparent hydrogel. The flexible fiber electrode comprises conductive materials such as graphene oxide, carbon nanotubes, and polypyrrole. The flexible fiber electrode is directly integrated onto the surface of the optical fiber through the adhesion of the fiber skin, forming a heterogeneous structural unit integrating optical transmission and electrical conduction. This technology relies on a dynamic interface bonding mechanism to achieve stable and reconfigurable heterogeneous integration in a humid environment. The device simultaneously possesses low optical loss, high conductivity, strong tissue adhesion, and excellent biocompatibility, making it suitable for implantable neural modulation and signal acquisition, in vitro testing, and interface reliability assessment.

This invention relates to the field of antibacterial composite sphere preparation, and particularly to a graphene antibacterial composite sphere and its preparation method, comprising: high-speed dispersion of modified silver-loaded zeolite, graphene oxide, polyvinylpyrrolidone-block-polyacrylic acid, hydroxypropyl methylcellulose, and ascorbic acid; calculating dispersion state indices based on real-time monitored resistivity and particle size; dynamically adjusting the rotation speed to suppress shear damage; normalizing the dispersion state indices to parameter adjustment parameters of 1-10 to determine the screw speed and temperature setpoint of the twin-screw extruder; and real-time monitoring of 1710 cm⁻¹ during the extrusion process. ‑1 The drift of characteristic absorption peaks is dynamically compensated for by interfacial thermal degradation, and finally injection molding is performed. This invention achieves fine and stable dispersion and composite of graphene and silver-loaded zeolite in a polyethylene matrix through multi-level intelligent control, solving the problems of easy agglomeration of functional phases, easy degradation during processing, and poor batch consistency caused by rough process control in the prior art.

The application provides a kind of bionic anti-crack asphalt mixture and its preparation method, belong to building material modification technical field, the bionic anti-crack asphalt modifier, raw material includes polyacrylic acid sodium solution, sodium chloride solution and calcium chloride solution.The bionic anti-crack asphalt modifier provided in the application forms a three-dimensional structure of interaction by the interaction of hydrogen bond, ionic bond and covalent bond, so that the ions in chitosan solution, polyacrylic acid sodium solution, sodium chloride solution and calcium chloride solution form a three-dimensional structure of interaction, while improving the mechanical strength, significantly improve the anti-crack performance and self-repairing ability of the material.The bionic anti-crack asphalt modifier and matrix asphalt, mineral aggregate are combined, so that the obtained bionic anti-crack asphalt mixture has better anti-crack function without affecting the performance of asphalt pavement.

The present invention relates to the technical field of green backfill mining in coal mines. Disclosed are a multi-source solid waste backfill slurry and a preparation method therefor. Raw materials for the multi-source solid waste backfill slurry include: a multi-source solid waste material, a waterborne epoxy resin, a curing agent, a waterborne acrylic resin, and polyacrylic acid. Raw materials for the multi-source solid waste material include: tailings, desulfurized gypsum, fly ash, and gasification slag. The raw materials used in the present invention are all green and environmentally friendly raw materials, various types of solid waste materials feature low costs, and the entire preparation process requires no addition of cement, effectively reducing the cost of backfill mining in coal mines; moreover, efficiently and rationally utilizing various types of solid waste materials reduces surface accumulation, and vigorously promotes the green mining process of coal, thereby providing a brand-new green backfill approach for cemented backfill mining, and achieving significant social and economic benefits in ensuring safe and low-cost mining of mines.

This invention discloses a fiber optic microfluidic cavity MZI interferometric pH sensor and its fabrication method, belonging to the field of fiber optic biochemical sensing and biomedical detection technology. In an SMF-NCF-SMF fusion structure, an open microfluidic cavity is precisely etched within a coreless fiber segment using femtosecond laser processing technology, and a chitosan / polyacrylic acid pH-sensitive multilayer film is constructed on its inner wall using layer-by-layer self-assembly technology. This invention employs the aforementioned fiber optic microfluidic cavity MZI interferometric pH sensor and its fabrication method. By etching an open microfluidic cavity with a femtosecond laser within an SMF-NCF-SMF fusion structure and constructing a chitosan / polyacrylic acid pH-sensitive multilayer film on the cavity inner wall using layer-by-layer self-assembly technology, a synergistic effect of high sensitivity and low temperature crosstalk is achieved, while maintaining good mechanical stability and miniaturization characteristics.

The present application belongs to the technical field of building materials, and particularly relates to a 3D printing tunnel spraying waterproof material. The 3D printing tunnel spraying waterproof material comprises mortar and a water-repellent agent. The water-repellent agent is prepared by the following steps: (1) adding isobutyl triethoxysilane and hydroxyl polydimethylsiloxane into modified silica sol and mixing uniformly; (2) adding polyacrylic acid, mixing uniformly, and freeze-drying to obtain the water-repellent agent. The modified silica sol is silane coupling agent modified silica sol. The 3D printing tunnel spraying waterproof material has good water-repellent performance and bonding performance.

This invention relates to the field of aqueous zinc battery separator modification technology, and particularly to a method for preparing and applying a polyacrylic acid modified separator with synergistic regulation of positive and negative electrodes. The method involves dissolving polyacrylic acid in water to form a homogeneous solution, then adding it dropwise to the separator surface and drying it to obtain the polyacrylic acid modified separator. The carboxyl functional groups in the polyacrylic acid can interact with hydrated zinc ions during battery operation, reconstructing the ion-water molecule microenvironment within the separator, promoting directional and uniform zinc ion deposition and interfacial desolvation, and inhibiting dendrite growth, corrosion, and hydrogen evolution side reactions at the zinc negative electrode. Simultaneously, the modified layer can mitigate local pH fluctuations at the positive electrode interface, stabilize the positive electrode interface environment, and reduce Mn. 3+ The disproportionation reaction and the formation of the byproduct ZnMn2O4 lead to synergistic stabilization of the positive and negative electrodes. This separator has advantages such as simple preparation process, low cost, and ease of large-scale preparation, and can significantly improve the coulombic efficiency, rate performance, and long-cycle stability of aqueous zinc-manganese batteries.

The present application relates to a kind of integrated descaling-passivation function polymer and its preparation method and application, belong to industrial equipment chemical cleaning and corrosion protection technical field, it is single compound with formula (I) shown as follows: D-L-P (I), wherein, D is the descaling function chain segment with number average molecular weight of 2,000 to 50,000, selected from polyacrylic acid segment, polyepoxysuccinic acid segment or phosphonated polyacrylic acid segment;P is passivation function end group, selected from the following formula (II) or formula (III) shown as follows: -R 1 -1H-benzotriazole-1-yl (II), wherein R 1 It is C1-C6 straight chain or branched alkylene;-R 2 -Si (OR 3 ) 3 (III), wherein R 2 It is C1-C3 alkylene, R 3 It is C1-C2 alkyl.The integrated descaling-passivation function polymer and its preparation method and application, by covalent bond, descaling chain segment and passivation end group are connected as single molecule, force realizes "clears a point, protects a point" sequence effect, fundamentally eliminates competitive adsorption, reaches the advantage of molecular level synergistic effect.

This invention discloses an organic-inorganic composite textile material and its preparation method, belonging to the field of functional textile materials. The invention first prepares zinc oxide nanocrystals, and then uses polyacrylic acid micelles to induce hydrothermal self-assembly to obtain zinc oxide microspheres containing only anhydrous ethanol. The zinc oxide microspheres and a titanate coupling agent are incorporated into PU-2175 waterborne polyurethane to form a composite slurry. This slurry is then used to impregnate and pad polyester fabric, followed by drying, hot pressing, and washing to obtain the finished fabric. This invention can inhibit the agglomeration of zinc oxide powder, fully retains its ultraviolet shielding and light conversion properties, ensures a tight bond between the filler and the fabric, exhibits excellent wash resistance, and provides long-lasting and stable protective effects. It is suitable for outdoor sun-protective clothing, blackout home textiles, and industrial protective fabrics.

A preparation method of a multifunctional composite binder for a silicon-based negative electrode, polyacrylic acid is dissolved in deionized water to obtain a polyacrylic acid solution; an alkaline solution is added to the polyacrylic acid solution to adjust the pH value to be alkaline, the polyacrylic acid molecular chain is deprotonated under alkaline conditions, and the mixture is uniformly mixed to obtain a deprotonated mixed solution; finally, gelatin is added to the mixed solution for compounding to obtain an aqueous composite binder. The advantages are: simple process, safety and environmental protection, enhanced mechanical toughness of the binder and anchoring capacity for silicon particles, to buffer the volume expansion of the silicon-based negative electrode, maintain the structural integrity of the electrode, and ensure the electrochemical performance of the battery.

This invention relates to the field of conductive coating technology and discloses a highly wettable conductive coating for carbon-coated aluminum foil. The conductive coating for carbon-coated aluminum foil of this invention comprises the following raw materials in parts by weight: 5-10 parts conductive graphite, 20-30 parts carbon nanotubes, 15-20 parts graphene, 20-30 parts polyacrylic acid, 10-15 parts carboxylated nanocellulose, 5-10 parts chitosan-based modifier, 150-250 parts deionized water, and 50-100 parts isopropanol; wherein the conductive fillers are conductive graphite, carbon nanotubes, and graphene; and the binders are polyacrylic acid and carboxylated nanocellulose. This conductive coating not only possesses excellent conductivity but also high adhesion and high wettability, thus showing great promise for application in carbon-coated aluminum foil.