15 results about "Hydrophobic effect" patented technology

The application provides a chlorogenic acid-europium nanoparticle and a preparation method and application thereof, and belongs to the technical fields of nanobiological materials and biological medicine. The preparation method of the chlorogenic acid-europium nanoparticle comprises the following steps: slowly mixing chlorogenic acid (CGA) and europium ions in a solvent, and self-assembling the CGA-Eu (Eu 3+ ) nanoparticles through intermolecular coordination, electrostatic interaction and hydrophobic effect. The CGA itself has good biomedical application potential, the addition of the europium ions causes coordination with the CGA to enhance the stability of the CGA and enrich the functions of the CGA. The CGA-Eu nanoparticles have good stability under physiological conditions, and can conditionally release the CGA and Eu 3+ ions under pathological microenvironments, and have multiple effects of antioxidation, anti-inflammation, antibiosis and promotion of angiogenesis, and excellent biocompatibility. The nanoparticles obtained through the method of the application solve the problem of instability of the chlorogenic acid under conventional environments, and have wide application prospects in the fields of biological medicine, health products and cosmetics.

The application discloses a preparation method of fluorine-containing Fe3O4 nano-assemblies and application of the fluorine-containing Fe3O4 nano-assemblies in intracellular protein delivery, and the preparation method comprises the following steps: preparing Fe3O4 nanoparticles and small-molecule ligands containing fluorine alkyl chains respectively, and the two are combined through ligand exchange reaction to form fluorine-containing Fe3O4 nanoparticles; the fluorine-containing Fe3O4 nanoparticles can be self-assembled with proteins to form stable complexes through the hydrophobic effect and electrostatic effect of the fluorine alkyl chains. The fluorine-containing Fe3O4 assemblies provided by the application have universality as intracellular protein delivery carriers, can effectively deliver proteins with different isoelectric points and molecular weights to tumor cells, do not affect the biological activity of the cargo proteins, have small toxicity to cells, and have good biocompatibility. The protein delivery efficiency of the assemblies is further improved under the guidance of an external magnetic field, so that the killing effect of therapeutic proteins on tumor cells is enhanced, and the assemblies have application potential in the field of tumor treatment.

The application of a long-chain nitrogen-containing organic cation salt compound in the aspect of being used as a platinum group metal precipitant and a platinum group metal recovery method belong to the technical field of recycling of secondary resources of noble metals.The platinum group metal precipitant is mixed with an aqueous solution containing platinum group metal (palladium, platinum, rhodium, iridium) chloride complex ions, and the electrostatic effect of the long-chain nitrogen-containing organic cation salt in the precipitant on the platinum group metal chloride complex ions and the hydrophobic effect of the alkyl chain are utilized to precipitate the platinum group metal ions, so that the corresponding platinum group metal is obtained through solid-liquid separation and calcination.The present application provides an effective recovery method, which significantly improves the recycling efficiency of noble metal resources.The present application solves the technical problems of high residual concentration of tail liquid metal and large amount of precipitant in the previous precipitation recovery process, has the advantages of high recovery efficiency of noble metal, simplified process flow, environmental friendliness, improved resource utilization rate and the like, and provides an innovative solution for efficient recycling of platinum group metal resources.

The application relates to the technical field of water treatment, and discloses an iron-based coordination assembly as well as a preparation method and application thereof. The iron-based coordination assembly comprises ferrous ions as central ions, and perfluoroalkyl sulfonic acid and / or perfluoroalkyl carboxylic acid with a perfluorinated carbon chain having 7 or 8 carbon atoms as ligand compounds; and the iron-based coordination assembly forms an active catalytic system in an aqueous solution with a pH value of 4.0-5.0. The iron-based coordination assembly provided by the application retains the active 3d electron configuration of Fe 2+ , and effectively breaks the dense hydration layer around Fe 2+ by using the extremely strong hydrophobic effect of the carbon-fluorine chain of the ligand compound, so that a hydrophobic microenvironment rich in NO2 ‑ is constructed at the active site, thereby greatly optimizing the electron transfer path, and successfully solving the key bottleneck of slow reaction rate and low mass transfer efficiency in the traditional Fe 2+ nitrite reduction technology.

The present application relates to the technical field of lanthanide recovery, and particularly relates to a triethylammonium chloride crystal, preparation thereof and application thereof in lanthanide recovery. The triethylammonium chloride crystal is composed of triethylammonium cation and chloride ion, and has a chemical formula of NEt3HCl. Each nitrogen atom is bonded with three ethyl groups to form a typical triethylammonium cation, and the chloride ion occupies a lattice position and participates in N-H...Cl hydrogen bond interaction. In the triethylammonium chloride crystal, the content of chlorine is 44.22%, the content of carbon is 35.80%, the content of hydrogen is 9.99%, and the content of nitrogen is 9.99%. In the triethylammonium chloride crystal, the nitrogen element serves as a coordination site and can directly coordinate with lanthanide ions. Due to the influence of the hydrophobic effect of the ethyl group in triethylamine, lanthanum 98.30%, europium 98.70% and lutetium 98.79% can be efficiently adsorbed and recovered. It is shown that the triethylammonium chloride crystal has good adsorption performance on lanthanide elements and can realize high-capacity adsorption enrichment of lanthanide elements.

This invention discloses a reconstituted crispy chip made from cold-water fish with a hydrophobic coating and its preparation method, belonging to the field of food processing technology. The method uses pikeperch and soy protein as raw materials, which undergo pretreatment, low-temperature chopping, addition of auxiliary materials, thinning, and drying to obtain the crispy chip base. Camellia oil ethanol solution is used as the hydrophobic coating, which is sprayed and dried at low temperature to form an edible hydrophobic film on the surface of the crispy chip. The resulting crispy chip has a water contact angle greater than 90°, exhibiting a significant hydrophobic effect, effectively delaying moisture absorption and softening, maintaining a crispy texture, and extending shelf life. This invention features a simple process, is safe and edible, and is suitable for industrial production, providing a new approach for the deep processing of pikeperch and the development of high-protein hydrophobic snack foods.

This invention relates to an adsorbent for organic amine flotation and its preparation method, based on the design of polar microporous TpPa-NO2COF. Batch adsorption experiments showed that TpPa-NO2COF reaches adsorption equilibrium within 20 minutes, with a maximum adsorption capacity of 128.5 mg / g for ODA. The adsorption mechanism between TpPa-NO2COF and ODA mainly involves electrostatic interactions, polar interactions, van der Waals forces, hydrogen bonding, and hydrophobic effects. Furthermore, by in-situ deposition of TpPa-NO2COF powder on an organic nylon membrane substrate, rapid removal of ODA from sample solutions was achieved under dynamic pressure-driven membrane filtration conditions. Dynamic adsorption experiments showed that TpPa-NO2COF achieved an ODA extraction rate exceeding 90%, and the membrane material maintained a regeneration rate of over 93% after hydrochloric acid washing.

The application discloses a silane composite nano ettringite hydrophobic agent and a preparation method and application thereof, and belongs to the technical field of building material surface protection. The application aims to solve the problems of weak interface bonding force and poor alkali stability of a full solid waste cementitious material surface protective agent. The hydrophobic agent is composed of the following raw materials in mass parts: 10-14 parts of nano ettringite powder, 3-4 parts of organic silane, 85-90 parts of anhydrous ethanol, 0.15-0.35 parts of water and 0.02-0.05 parts of acetic acid. The organic silane is a mixture of n-octyl triethoxysilane and gamma-aminopropyl triethoxysilane, and the mass ratio of the two is (60-85):(15-40). The technical scheme is used for the surface protection of a full solid waste cementitious material, can form a stable hydrophobic layer, and has the advantages of a surface water contact angle of greater than or equal to 100 degrees, a capillary water absorption coefficient reduction of greater than or equal to 30%, and a chloride ion penetration depth reduction of greater than or equal to 50%. The preparation process is simple, the alkali stability is strong, the hydrophobic effect is durable, and the application is suitable for the long-term protection of a full solid waste cementitious material such as a steel slag powder-mineral slag powder-gypsum system.

This invention discloses a BB cream and its preparation method, relating to the field of cosmetic technology. The BB cream comprises the following components in parts by weight: 1-20 parts inorganic powder, 5-30 parts dispersant, 0.5-3 parts thickener, and 0.05-8 parts film-forming agent. This invention utilizes a specific combination of dispersant, thickener, and film-forming agent to provide a BB cream that is oil-free, has good makeup-holding effect, and good film-forming and oil-controlling effect. This invention, through the combination of passivated zinc oxide and zinc oxide with a relatively balanced hydrophilic and lipophilic nature, can improve the film-forming and hydrophobic effects of the BB cream system.

The application relates to the preparation and application of a cobalt / zinc bimetallic organic framework film with alcohol priority, and belongs to the field of membrane technology. That is, hydroxyl cobalt salt and hydroxyl zinc salt are introduced on the surface of a porous carrier as heterogeneous nucleation sites of a metal organic framework (MOF) film, and then the carrier is placed in an organic ligand precursor solution containing a bimetal source to prepare a cobalt / zinc bimetallic MOF film with good continuity. The competition between cobalt and zinc metals further expands the pore size of the MOFs, and makes the crystal preferentially grow along the (211) crystal face. The expanded pore size is helpful for the transmission of ethanol molecules, and the preferential growth of the (211) crystal face further plays the hydrophobic effect of 2-methyl imidazole ligands in the MOFs to prevent water molecules from entering the pore. The ethanol separation factor is respectively increased by 127.3% and 163.2%. Finally, a solution containing a silicon-containing polymer and a curing agent is gradually coated on the bimetallic MOF layer to enhance the performance and stability of the pervaporation.

The application relates to the technical field of oil and gas field development, and discloses a high-temperature and high-salt adaptive variable-viscosity oil displacement system, a preparation method and application thereof, the oil displacement system comprising 0.06-0.15% of click grafting type fluorocarbon hydrophobic association polymer, 0.002-0.06% of fluorocarbon anion surfactant and the balance of water; the click grafting type fluorocarbon hydrophobic association polymer is polyacrylamide grafted with fluorocarbon hydrophobic groups through a thiol-ene click reaction; the oil displacement system is precisely grafted through a click chemistry technology, and the matching hydrophobic effect of the fluorocarbon groups is combined, so that the problem that an existing variable-viscosity oil displacement system cannot adapt to an ultrahigh-temperature and high-salt oil reservoir is solved; under extreme conditions of a temperature of 90-120 DEG C and a salinity of 100000-200000 mg / L, the oil displacement system can still maintain stable variable-viscosity performance, has strong shear resistance, can effectively improve a heavy oil recovery rate, and is suitable for development and application of an ultradepth heavy oil reservoir.

A device for creating and applying a hydrophobic effect in a bathroom fixture includes an electrostatic generator, a liquid shielding object, and a bowl or basin. The electrostatic generator is configured to generate an electrostatic field configured to repel liquid, the liquid shielding object is positioned in relation to the electrostatic generator. The bowl or basin is configured to collect liquid repelled from the liquid shielding object by the electrostatic field.

The application discloses a silane composite nano ettringite hydrophobic agent and a preparation method and application thereof, and belongs to the technical field of building material surface protection. The application aims to solve the problems of weak interface bonding force and poor alkali stability of a full solid waste cementitious material surface protective agent. The hydrophobic agent is composed of the following raw materials in mass parts: 10-14 parts of nano ettringite powder, 3-4 parts of organic silane, 85-90 parts of anhydrous ethanol, 0.15-0.35 parts of water and 0.02-0.05 parts of acetic acid. The organic silane is a mixture of n-octyl triethoxysilane and gamma-aminopropyl triethoxysilane, and the mass ratio of the two is (60-85):(15-40). The technical scheme is used for the surface protection of a full solid waste cementitious material, can form a stable hydrophobic layer, and has the advantages of a surface water contact angle of greater than or equal to 100 degrees, a capillary water absorption coefficient reduction of greater than or equal to 30%, and a chloride ion penetration depth reduction of greater than or equal to 50%. The preparation process is simple, the alkali stability is strong, the hydrophobic effect is durable, and the application is suitable for the long-term protection of a full solid waste cementitious material such as a steel slag powder-mineral slag powder-gypsum system.