26 results about "Hydrophile" patented technology

The invention provides a method for determining an asphaltene HLB (hydrophile-lipophile balance) value based on an asphaltene structure. The method comprises the following steps: step 1, defining a relative ratio R of integral curve areas of hydrophilic protons; 2, further calculating an asphaltene HLB value based on the R value; 3, calculating an average structure parameter of the asphaltene sample by using an improved BL method; 4, performing single-factor fitting on the basis of the asphaltene HLB value and the selected related parameters; 5, further multi-factor fitting is carried out, and a linear formula for asphaltene HLB value calculation is obtained; and step 6, comparing a calculation result of the fitting formula with a nuclear magnetic method result, and finally determining an asphaltene HLB value calculation formula. According to the method, the calculation formula of the HLB value of the asphaltene is fitted based on the nuclear magnetic hydrogen spectrogram and the average structure parameter of the asphaltene, so that the effect of preliminarily screening the surfactant is achieved, and the time cost is reduced.

The invention relates to the field of food preservation, and provides a preservative film as well as a preparation method and application thereof. The preparation method comprises the following steps: loading the fruit and vegetable preservative on a gamma-cyclodextrin-metal organic framework to obtain a composite material; mixing the composite material, a hydrophobic substance and a first solvent to obtain a first solution; mixing a hydrophilic substance with water to obtain a second solution; mixing the first solution and the second solution to obtain a film forming solution, and preparing the preservative film by adopting the film forming solution. According to the invention, the composite material is dispersed into the hydrophobic film base liquid and then mixed with the water-based film base liquid, and the hydrophobic base material can rapidly wrap the composite material into a spherical shape due to hydrophilic and hydrophobic effects, so that a barrier layer is formed to isolate moisture, and the composite material is protected. According to the prepared preservative film, a complete skeleton structure of the gamma-cyclodextrin-metal organic skeleton in the water-based film base solution is kept, and the gamma-cyclodextrin-metal organic skeleton can be uniformly dispersed in the preservative film.

The preparation method comprises the following steps: firstly, carrying out a ring-opening esterification reaction on an acrylic acid monomer and alkylene oxide under the action of a catalyst to synthesize carboxylic acid monomers with different hydrophilic-lipophile values (HLB values); the polycarboxylate-type water reducing agents with different HLB (Hydrophile-Lipophile Balance) values are synthesized by a three-drop-adding water-phase free radical polymerization method. Compared with the prior art, the polycarboxylic acid water reducer and the preparation method thereof have the characteristics of simple synthesis process and excellent slump loss resistance and workability improvement performance.

The application discloses an interface-locked anti-swelling hydrogel coating mesh membrane and a preparation method and application thereof, and comprises the following steps: growing a tin dioxide particle layer on the surface of a stainless steel filter mesh in situ, depositing a polydopamine coating on the tin dioxide particle layer, coating an anti-swelling hydrogel coating on the polydopamine coating, and preparing the interface-locked anti-swelling hydrogel coating oil-water separation mesh membrane through heat curing and freeze-thaw cycles; the polydopamine in the mesh membrane has adhesion, and cooperates with sulfuric acid and [2-(methacryloyloxy)ethyl]dimethyl-(3-sulfopropyl) ammonium hydroxide to induce the Hofmeister effect, so that polyvinyl alcohol molecular chains are dehydrated and crystallized, a high-physical-crosslinking anti-swelling hydrogel coating is formed, strong interface bonding is provided, the micro-nano rough structure constructed by the tin dioxide particles and the introduced hydrophilic substances are combined, the problems of easy excessive swelling and interface delamination of the hydrogel coating oil-water separation mesh membrane are overcome, and long-acting and high-performance oil-in-water emulsion separation can be realized.

To provide an emulsion composition which has improved emulsion stability and can be jetted from a nozzle while maintaining the emulsion stability without reducing the amount of an oily component, to provide a cosmetic containing the emulsion composition, and to provide a method for producing the emulsion composition.SOLUTION: The emulsion composition of the present invention comprises a polyol having three or more hydroxyl groups in the molecule, a surfactant having 10 or more carbon atoms that forms an O / W (oil-in-water) emulsion with an HLB (hydrophile-lipophilebalancevalue) of 12 or more, an oily component, water, and a polymeric emulsifier comprising crystalline cellulose, xanthan gum, and cellulose gum, and is emulsified by a combination of a D-phase emulsification method and a powder emulsification method.SELECTED DRAWING: Figure 1

The multi-matrix PFAS detection method comprises the following steps: mixing WAX and an HLB (Hydrophile-Lipophile Balance) adsorbent, and then adding a cross-linking agent, an initiator and a catalyst for polymerization reaction to prepare an adsorption glue solution; and filling the adsorption glue solution into a pipe seam between the sampling pipe and the auxiliary pipe, and forming, soaking and cutting to complete the preparation of the annular adsorption phase. Adding an internal standard into a to-be-detected sample, diluting the to-be-detected human body sample with ultrapure water, and not diluting the to-be-detected sewage sample; a to-be-detected sample PFAS is enriched by using a sampling tube containing an annular adsorption phase, and a to-be-detected solution is obtained through elution, nitrogen blowing, redissolution and filtration. The WAX adsorbent and the HLB adsorbent are combined with the cross-linking agent, so that the contact area and the adsorption efficiency of the adsorption material to PFAS are improved, and the adsorption material is suitable for multiple matrixes such as serum, urine and sewage; sample dilution can reduce protein interference and simplify pretreatment steps; by combining the high performance liquid chromatography-tandem mass spectrometry, the PFAS component and content of the sample can be accurately detected, the materials are easy to obtain, and the cost is low.

The invention discloses a method for removing oxidation film immersion type pollutants. The method comprises a cleaning method for workpieces polluted by heavy oil contamination type pollutants and workpieces polluted by complex oil contamination and solid powder. For a workpiece polluted by complex oil stains and solid powder, a special emulsion is prepared by adopting a specific HLB (Hydrophile-Lipophile Balance) value, and different oil stains and solid powder are removed at the same time through the solubility of the emulsion on mixed oil stains, the solubilization of a surfactant and the emulsification and stripping effects of ultrasonic waves in an ultrasonic cleaning manner; the purpose of cleaning is achieved, and the maximum cleaning rate can reach 100%.

A microneedle structure is provided with needle-like parts having a flow path therein. The flow paths open on the surface of the needle-like parts. A coating containing a hydrophilic substance is formed on the inner surface of the flow paths.

The invention provides a polymer microsphere as well as a preparation method and application thereof. The polymer microspheres contain a first polyester material and a second polyester material, the first polyester material is polyester modified by a hydrophilic substance, and the second polyester material is polyester not modified by the hydrophilic substance; the polymer microsphere has a through pore channel structure, the through pore channel structure forms pores in the surface of the polymer microsphere, and the interior of the polymer microsphere is of a porous honeycomb structure. When the polymer microsphere provided by the invention is used as an organism filling agent, the polymer microsphere has a good adhesion effect on cells, better cell adhesion can be realized, and collagen secretion is improved; meanwhile, the through pore channel structure enables body tissues to grow more uniformly in the microspheres and strengthens the combination of the tissues and the polymer microspheres, so that the polymer microspheres are not easy to displace after being injected and in the later degradation process, and the safety is improved.

The present invention discloses a method and application for encapsulating tributyrin with a hydrophilic barrier layer to aid probiotics in encapsulating tributyrin, belonging to the field of oil microencapsulation technology. The method comprises the following steps: 1) mixing probiotic cells with tributyrin and washing with an aqueous solution to obtain a first complex containing probiotics encapsulating tributyrin; and 2) mixing the first complex with a hydrophilic solution to obtain a second complex containing probiotics encapsulating tributyrin with a hydrophilic barrier layer. The second complex (tributyrin-encapsulated complex) prepared using the present method exhibits high loading capacity, lacks surface oil, and completely masks the odor of tributyrin. It can release tributyrin in digestive fluids and exert intestinal health benefits. It can be used in food, medicine, and feed, as well as in oral or parenteral formulations.

The invention discloses a magnetorheological fluid with excellent high and low temperature fluidity and sedimentation stability and a preparation method thereof. The magnetorheological fluid comprises the following components in percentage by mass: 70-90% of magnetic particles, 7-25.2% of an alkane carrier liquid, 0.2-0.8% of a lubricant, 0.3-1% of a surfactant, 0.5-1.5% of a dispersant and 0.5-1.5% of a thickener. The surface active agent is a lipophilic surface active agent and is HLBlt (Hydrophile Lipophile Blume); 6; the dispersing agent is one or more of fatty acid modified polyester, modified polyurethane, modified acrylate, block polyether and polymethacrylate; the thickening agent is one or more of organic bentonite, magnesium aluminum silicate and silicon dioxide. The magnetorheological fluid provided by the invention has good fluidity at high and low temperatures, and has good sedimentation stability and redispersibility at high temperature; and the resistance is small under zero field, low speed and low shear, the whole suspension cannot be harder, and the comfort level is good.

The invention discloses a compound for inhibiting copper corrosion, which comprises a nitrogen-containing compound a, a nitrogen-containing compound b and a surfactant, the structures of the nitrogen-containing compound a and the nitrogen-containing compound b are as follows: # imgabs0 #; the surfactant comprises one or a combination of more of methoxypolyethylene glycol, polyamine ether, polyoxyethylene alkylamine and polyvinylpyrrolidone, and the HLB (Hydrophile-Lipophile Balance) value of the surfactant is 18-20; the molar ratio of the nitrogen-containing compound a to the nitrogen-containing compound b is (1: 1)-(1: 5), and the molar ratio of the nitrogen-containing compound a to the surfactant is (1: 1)-(1: 3). The complex agent can effectively inhibit corrosion of copper, the polishing composition containing the complex agent can also inhibit corrosion of copper, the low copper removal rate is guaranteed, meanwhile, the polishing rate of a barrier layer is increased, the occurrence of dish-shaped defects is reduced, copper and the surrounding barrier layer are completely flattened, and the corrosion resistance of copper is improved. And improvement of device contact interconnection performance and improvement of integrated circuit density are facilitated.

The application relates to the technical field of recycling of mineral soil resources, in particular to a flotation desulfurization activator as well as a preparation method and application thereof; in terms of 1 mol of phytic acid, raw materials of the flotation desulfurization activator satisfy: copper hydroxide: 0-6 mol, ammonium carbonate: 0-6 mol; the flotation desulfurization activator satisfies: (2m+2n):q=12:1, wherein q is the amount of substance of phytic acid; m is the amount of substance of copper hydroxide; and n is the amount of substance of ammonium carbonate. The flotation desulfurization activator can reduce the content of hydrophilic substances wrapped on the surface of pyrite in high-sulfur bauxite, so as to expose the fresh surface of the high-sulfur bauxite, and in addition, the copper ions of the copper hydroxide can be directly adsorbed on the sulfur atoms of the pyrite in the high-sulfur bauxite with the fresh surface exposed through the ammonium carbonate, so that the number of active sites on the surface of the high-sulfur bauxite can be increased, and then the activation performance of the activator on the high-sulfur bauxite can be improved.

The invention discloses a method for assisting probiotics to embed tributyrin through a hydrophilic barrier layer and application of the method, and belongs to the technical field of grease microencapsulation. Comprising the following steps: 1) mixing probiotic cells with tributyrin, and washing with an aqueous solution to obtain a first compound of tributyrin embedded by probiotics; and 2) mixing the first compound with a hydrophilic substance solution to obtain a second compound with the hydrophilic substance barrier layer assisting the probiotics to embed the tributyrin. The second compound (tributyrin embedded compound) prepared based on the method has the characteristics of high loading capacity, no surface oil and capability of completely shielding the peculiar smell of tributyrin, can release tributyrin in digestive juice and exert the intestinal health effect, can be used for foods, medicines and feeds, and has wide application prospects. And as an oral or non-oral formulation.

The invention relates to the technical field of cosmetics, and discloses a composition for preparing a high-cream-forming-point emulsified product and application of the composition, and the composition comprises the following components in percentage by mass: 5-25% of glyceryl hydroxystearate, 10-40% of a high-HLB (Hydrophile-Lipophile Balance) emulsifier and 44-64% of high alcohol. The composition disclosed by the invention can be used for preparing an emulsified product with a high paste point, the paste point of the product is 50 DEG C or above, the requirements of a specific product are met, and the emulsified product with high stability can be obtained without adding a high-molecular polymer and other thickening agents into a system.

The invention provides a preparation method for in-situ local regulation and control of the cell morphology of a polymer foam material and the polymer foam material, and the preparation method comprises the following steps: compounding a polar polymer, a non-polar polymer, a hydrophilic substance and an auxiliary agent, and molding to obtain a foaming precursor; the hydrophilic substance accounts for 0-20wt% of the foaming precursor, and the auxiliary agent accounts for 0-20wt% of the foaming precursor; mixing the foaming precursor, a foaming agent and water, saturating for 30 minutes to 8 hours at the temperature of 60 to 200 DEG C and the pressure of 3 to 25 MPa, and foaming to obtain the polymer foam material. According to the method, the pore form can be locally regulated in situ in the polymer foam material preparation process, and the process is simple, green and environment-friendly; according to the method, the morphology and Poisson's ratio of the polymer foam material can be regulated and controlled, and the designability of the material performance can be improved, so that the usability of the polymer foam material is greatly improved, and the development of the field is promoted.

The invention provides a composite FDY oil agent and a preparation method thereof.The preparation method comprises the steps that an HLB regulator and water are mixed, heated and stirred, and a first mixture is obtained; adding an emulsifier, a bundling agent, an antistatic agent and a smoothing agent into the first mixture, mixing, preserving heat and stirring to obtain a second mixture; cooling the second mixture to room temperature, adjusting the pH value to 6.5-7.5, and filtering to obtain the composite FDY oiling agent; wherein the HLB regulator is porous silicon dioxide loaded with glyceride ethoxylate, and the surface of the porous silicon dioxide is coated with ethyl cellulose. The composite FDY oil agent disclosed by the invention can keep the stability of an HLB (Hydrophile-Lipophile Balance) value under a high-temperature condition, and is relatively good in environment-friendly degree.

This invention discloses a method for preparing a hydrophilic array based on a hydrophobic substrate, comprising the following steps: (1) covering a hydrophobic substrate with a mask having a plurality of holes evenly arranged; (2) depositing a solution or suspension of hydrophilic material into the holes on the mask; wherein the deposition method is ultrasonic atomization, spraying, or chemical vapor deposition; (3) during the deposition process, placing a movable mask on a porous mask, and changing the shielding area of ​​the movable mask by motor drive or manual movement to control the amount of hydrophilic material at different positions in the array; (4) removing the mask from the hydrophobic substrate, so that the hydrophilic material is deposited on the hydrophobic substrate to form a hydrophilic region array; this invention does not require complex process steps or equipment, and realizes efficient, controllable, and stable preparation of hydrophilic arrays.

The invention belongs to the technical field of biomimetic materials, and discloses an ultrasonic phantom material as well as a preparation method and application thereof. The ultrasonic phantom material comprises the following raw material components: a macromonomer, a micromolecule monomer, a micromolecule cross-linking agent, a macromolecular cross-linking agent, a photoinitiator and water, the macromonomer comprises a hydrophilic substance of which the side chain contains double bonds and the main chain contains hydrogen bonds; the small molecular monomer comprises an amide compound; the macromolecular cross-linking agent comprises nano clay; the micromolecule crosslinking agent is an organic matter crosslinking agent. The ultrasonic phantom material is a hydrogel elastomer with a self-healing function, has good transparency and mechanical properties and good stretchability, the good mechanical properties are matched with the ultrasonic conduction performance, and the sound velocity of the ultrasonic phantom material is close to that of human tissue and is 1540 + / -10 m / s.

This invention relates to the field of oil-water separation technology, and in particular to a superhydrophilic metallic material, its preparation method, and its applications. A metal mesh is immersed in a hydrophilic substance solution for 2-72 hours to obtain a hydrophilic substance-treated metal mesh; the hydrophilic substance-treated metal mesh is then immersed in a binder solution for 2-72 hours to obtain a binder-treated metal mesh; finally, the binder-treated metal mesh is immersed in a metal salt solution for 10 hours to obtain the superhydrophilic metallic material. The material prepared by this invention exhibits excellent performance in separating oil-water mixtures of different viscosities, demonstrating good separation efficiency and stability. Compared to existing superhydrophilic / underwater superoleophobic surface materials, the material of this invention shows significant advantages in oil-water separation capability, stability, and cost-effectiveness, and has broad potential for industrial production applications.

The present application provides a method for preparing a chip for synthesizing DNA, the use of the chip, and a method for synthesizing DNA. The preparation method includes the following steps: inkjet printing a hydrophilic substance on the surface of a substrate covered with a silane film layer, and after the hydrophilic substance reacts with the silane film layer to form a covalent bond, forming a hydrophilic lattice on the surface of the silane film layer; using a hydrophobic substance to hydrophobically seal the remaining surface of the silane film layer except the hydrophilic lattice, so as to form a hydrophobic region outside the hydrophilic lattice, and the hydrophobic substance is covalently bonded to the silane film layer; wherein the hydrophilic substance includes a hydrophilic molecule, and of the two end groups of the hydrophilic molecule, one end group is used to form a covalent bond with the silane film layer, and the other end group is a base. Utilizing this preparation method, while forming the hydrophilic and hydrophobic regions, the chip preparation process can be simplified, thereby reducing the manufacturing cost of the chip.

The invention relates to the technical field of chemical engineering, in particular to waterproof wax for an artificial board and a preparation method and application thereof. The waterproof wax for the artificial board comprises the following components in percentage by weight: 40-43% of paraffin; 0.8 to 1.9 percent of a low molecular polymer; 0.4%-1.9% of a high-molecular polymer; 0.2%-0.9% of a cross-linking agent; 4%-6% of an emulsifier; and the balance of water. The waterproof wax is a product obtained by further homogenizing and dispersing a cross-linked product obtained by paraffin, a specific low-molecular polymer and a high-molecular polymer under the action of a cross-linking agent in the presence of an emulsifier with an HLB (Hydrophile-Lipophile Balance) value of 8-14. The waterproof wax has extremely high viscosity and can replace part of urea resin while playing a waterproof role, the use amount of the urea resin is reduced, and the mechanical strength and the waterproof effect of the finally obtained plate are obviously enhanced.

A quantum-dot containing complex includes: a first ligand, which is a hydrocarbon compound including a hydrophilic moiety and a lipophilic moiety and has an aspect ratio of 5 or more; and a second ligand, which is a hydrocarbon compound including a hydrophilic moiety and a lipophilic moiety and has an aspect ratio of 4 or less, wherein the hydrophile-lipophile balances (HLBs) of the first ligand and the second ligand are each independently 7 or more.

The application belongs to the technical field of bionic materials, and discloses an ultrasonic phantom material and a preparation method and application thereof. The ultrasonic phantom material is prepared from raw material components including a macromolecular monomer, a small-molecular monomer, a small-molecular crosslinking agent, a macromolecular crosslinking agent, a photoinitiator and water; the macromolecular monomer includes a hydrophilic substance with a double bond in a side chain and a hydrogen bond in a main chain; the small-molecular monomer includes an amide compound; the macromolecular crosslinking agent includes nano clay; and the small-molecular crosslinking agent is an organic crosslinking agent. The ultrasonic phantom material is a hydrogel elastomer with a self-healing function, has good transparency and mechanical properties, is good in tensile property, and is matched with good mechanical properties and ultrasonic transmission properties. The ultrasonic phantom material has a speed close to that of human tissue, i.e., 1540±10 m / s.

The invention provides polyglycerol fatty acid ester reverse micelles as well as a preparation method and application thereof, and relates to the technical field of polyglycerol fatty acid ester reverse micelles. The polyglycerol fatty acid ester reverse micelle is prepared from the following components in percentage by mass: 0.4%-40% of a polyglycerol ester emulsifier 1, 0.2%-30% of a polyglycerol ester emulsifier 2, 0.1%-15% of water, 0.01%-1% of a water-soluble active matter and the balance of grease, the HLB (Hydrophile-Lipophile Balance) value of the polyglycerol ester emulsifier 1 is 2.5 to 6; the HLB (Hydrophile-Lipophile Balance) value of the polyglycerol ester emulsifier 2 is 8-12; the mass ratio of the polyglycerol ester emulsifier 1 to the polyglycerol ester emulsifier 2 is (1-2): 1. The polyglycerol fatty acid ester reverse micelle disclosed by the invention is transparent in appearance, can be compatible with the essence oil to form a stable transparent appearance, and is beneficial to promoting slow release, absorption and utilization of water-soluble active matters in the essence oil.