16results about How to "Hydrophobic" patented technology

This invention discloses a display device, comprising: a first substrate including a plurality of sub-pixels; a plurality of light-emitting diodes (LEDs) in each of the plurality of sub-pixels disposed on the first substrate; a hydrophobic barrier disposed above the plurality of LEDs and exposed above them; a plurality of color conversion layers disposed on the plurality of LEDs and surrounded by the barrier; an encapsulation layer disposed on the plurality of color conversion layers and formed of an organic material; and a light-shielding layer disposed on the barrier and disposed on the side portion of the encapsulation layer. The area of ​​the encapsulation layer increases downwards, and the area of ​​the light-shielding layer decreases downwards.

The invention discloses a color-developable waterborne polyurethane dust suppressant and a preparation method thereof, and belongs to the technical field of dust suppressant preparation, the color-developable waterborne polyurethane dust suppressant comprises the following components by weight: 5-20 parts of waterborne polyurethane, 1-10 parts of latex powder, 0.5-5 parts of organic wax, 0.5-5 parts of color paste, 0.5-3 parts of paper pulp, 0.5-3 parts of a thickener, 0.1-0.5 part of an auxiliary agent, 5-10 parts of a film forming auxiliary agent, and 70-90 parts of water. According to the dust suppressant, waterborne polyurethane serves as a film forming substance and can be combined with coal particles to form a film layer of 1 mm-2 mm, a formed cured film is high in strength, good in toughness and high in adhesive force, pulverized coal particles can be effectively isolated, wind and rain erosion can be resisted, the dust suppression period is long, certain hydrophobicity is achieved, the dust suppressant is not prone to being washed away, the service life is greatly prolonged, and the dust suppressant is suitable for being popularized and used. And the dust suppressant takes water as a dispersion medium, the VOC content is extremely low, the selected coloring agent is environment-friendly, no pollution is caused to soil and underground water, and the development direction of green chemistry is met.

The application belongs to the technical field of bio-based packaging materials, and particularly relates to a novel double-layer composite film and application thereof. The novel double-layer composite film comprises the following steps: reacting palmitic anhydride and carboxymethyl cellulose to obtain carboxymethyl cellulose palmitate; adding a pH-sensitive natural dye indicator to obtain carboxymethyl cellulose palmitate nanoemulsion containing a pH-sensitive substance; then loading a natural polymer material to prepare a film material; finally adding the film material to the carboxymethyl cellulose palmitate to prepare a composite film, thereby obtaining the novel double-layer composite film. The double-layer composite film can be self-emulsified without adding a surfactant, and has the ability to load functional indicator (pH-sensitive color indicator) substances; meanwhile, the barrier performance of the film material, such as a chitosan film, to water vapor and oxygen is improved, and the double-layer composite film has a very promising application in food or fruit preservation. The method provided by the application is not only green in raw materials, but also uses a flow casting method, which can be applied to industrial production and has a good application prospect.

The invention discloses a light-weight lithium battery diaphragm with high heat resistance and high wettability and a preparation method thereof.The light-weight lithium battery diaphragm with high heat resistance and high wettability comprises a base membrane and a coating on the base membrane, and the coating comprises porous aluminum oxide, carboxymethylated nanocellulose, acetylated nanocellulose, polyurethane, sodium hexametaphosphate and ammonium polyacrylate; the porous aluminum oxide, the carboxymethylated nanocellulose, the acetylated nanocellulose, the polyurethane, the sodium hexametaphosphate and the ammonium polyacrylate cooperate to improve the liquid absorption rate, the liquid retention rate, the peel strength, the ionic conductivity, the heat resistance and the wettability of the diaphragm, and meanwhile, the water content of the diaphragm is reduced. The density of the porous aluminum oxide, the carboxymethylated nanocellulose and the acetylated nanocellulose is relatively low, so that the diaphragm is light in weight.

The application discloses a method for preparing lithium pre-doped amine coordination manganese iron phosphate precursor from lithium manganese iron phosphate, and belongs to the field of battery recycling. The method comprises the following steps: stirring and reacting lithium manganese iron phosphate battery material with a high-valence iron salt solution and a surfactant, and filtering to obtain filtrate and phosphorus iron residue; mixing the filtrate with a phosphate, adjusting the pH of the solution to 2-6, then mixing with an oxidizing agent A, and adding a mixed solution containing an organic amine compound to perform nucleation precipitation reaction, and aging to obtain the lithium pre-doped amine coordination manganese iron phosphate precursor. The application utilizes the surfactant and the high-valence iron salt to efficiently replace divalent iron under acid-free or weak acid conditions, generates a metal solution containing Li + , Fe 2+ , Mn 2+ , performs oxidation to form nucleation precipitation, adds an organic amine compound to control the morphology of the generated particles in the solution, generates the lithium-doped amine coordination manganese iron phosphate precursor, the reaction condition is mild, the energy consumption in the treatment process is low, and the economic utilization value of a manganese byproduct is improved.

A semiconductor structure, a method for forming the semiconductor structure, and an integrated circuit structure are disclosed. The method includes: providing a first substrate on which an electrode structure is formed, wherein the electrode structure is hydrophobic and the first substrate exposed by the electrode structure is hydrophilic; providing a polymer solution for forming a specific structure on the first substrate; providing a second substrate including a first surface and a plurality of spaced-apart walls protruding from the first surface, wherein the top surface of the walls is hydrophilic and the sidewalls and the exposed first surface of the walls are hydrophobic; dropping the polymer solution onto the top surface of the walls and placing the first substrate onto the second substrate to obtain an initial semiconductor structure; wherein the side of the first substrate with the electrode structure faces the second substrate, and the extension direction of the electrode structure is perpendicular to the extension direction of the walls; curing the polymer solution; and removing the second substrate from the initial semiconductor structure to obtain a target semiconductor structure. Embodiments of this disclosure improve device performance.

The application discloses a conductive self-repairing Ag / PDMS coating for lunar dust protection and a preparation method and application thereof, and belongs to the technical field of space special functional materials. Epoxy resin A is dissolved in ethyl acetate, multi-walled carbon nanotubes, modified nano-silicon dioxide particles, a silane coupling agent, epoxy resin B and polydimethylsiloxane and a curing agent thereof are sequentially added into the ethyl acetate, and are uniformly mixed, sprayed and obtained, so that the conductive self-repairing Ag / PDMS coating with dustproof performance is obtained. The coating has the characteristics of low cost, no need of additional energy and maintenance, integration of dustproof, conductive and self-repairing functions, and can realize long-term dustproof ability on the lunar surface, can significantly reduce the adhesion of lunar dust on the surface of a spacecraft and a spacesuit, and has a wide application prospect in future manned lunar landing and deep space exploration activities.

The present application relates to the technical field of fracturing aids, and is a temperature-controlled variable-density high-pressure-resistant proppant and a preparation method thereof.The raw materials of the temperature-controlled variable-density high-pressure-resistant proppant include a proppant, a surface modifier, a temperature-controlled polymer, an initiator and an organic solvent.The temperature-controlled variable-density high-pressure-resistant proppant is prepared by first modifying the surface of the proppant to obtain a modified proppant, then grafting and polymerizing the modified proppant with the temperature-controlled polymer, and finally post-treating the final product.The temperature-controlled variable-density high-pressure-resistant proppant can reduce the density under the response of the bottom-hole temperature, so that it is more easily transported to the deep part of a complex fracture network and uniformly laid, has a low breakage rate, can well support the fractures and promote the flow of oil and gas in the fractures.Meanwhile, the temperature-controlled variable-density high-pressure-resistant proppant still has high pressure resistance after swelling, so as to avoid being crushed to reduce the fracture width and block the seepage channel and reduce the fracture conductivity.

The invention discloses a preparation method of high-solid-content and high-flowability sodium ion aqueous positive electrode slurry, which comprises the following steps: S1, preparation of a glue solution: adding a binder into deionized water, and stirring to obtain the glue solution; s2, preparation of a high-fluidity glue solution: adding a first glue solution flow regulator into the glue solution, and stirring at a high speed to obtain the high-fluidity glue solution; s3, preparing a weakly alkaline glue solution, namely adding a second pH flow regulator into the high-flowability glue solution, and stirring to obtain the weakly alkaline glue solution; s4, preparation of a conductive adhesive solution: adding a first conductive agent into the alkalescent adhesive solution, and stirring to obtain the conductive adhesive solution; s5, preparation of first slurry: adding the active substance material into the conductive adhesive solution in batches, stirring and dispersing, and adjusting the viscosity to obtain the first slurry; and S6, preparation of finished slurry: adding the second conductive agent into the first slurry, and stirring and dispersing at a medium-low speed to obtain the final slurry. The invention has the characteristics of good fluidity, high solid content and green and environment-friendly process.

This invention belongs to the field of imprinted sensor fabrication and application technology, and discloses a temperature-responsive yeast cell imprinted modified electrode, its fabrication method, and its application. This invention utilizes chronoamperometry and drop casting to modify gold electrodes, obtaining Au / AuNPs / Ti3C2T. x Au / AuNPs modified electrode. Using fluorescently labeled yeast cells as catalyst and template molecules, N-isopropylacrylamide as the temperature-responsive functional monomer and α-methacrylic acid as the auxiliary functional monomer, the electrode surface was modified using the MVL ATRP method. After removing the yeast cells, Au / AuNPs / Ti3C2T electrode was obtained. x / AuNPs / CIPs modified electrode. This modified electrode can be used as an electrochemical sensor for detecting yeast cells. This sensor has advantages such as fast detection speed and high sensitivity, with a linear response range of 1.0 × 10⁻⁶ for detecting yeast cells. 2 ~1.0×10 9 cells / mL.

This invention discloses a moisture-proof PVC wood grain sheet and its preparation method, belonging to the field of PVC wood grain sheet production technology. The moisture-proof PVC wood grain sheet is composed of the following components by weight: 90-100 parts PVC resin, 25-30 parts triethyl acetylacetic acid, 20-25 parts modified moisture-proof microcapsules, 10-15 parts moisture-proof coating liquid, 4-8 parts tricresyl phosphate, 3-5 parts stabilizer, 3-5 parts wood grain color masterbatch, 0.5-1 part calcium stearate, and 0.1-1 part light stabilizer 944. The PVC wood grain sheet prepared by this invention has good mechanical properties and moisture-proof properties.

This invention discloses a NIR-II~III phosphor, its preparation method, and its applications. The phosphor has the chemical formula Ba2La2Zn. 1‑x W2O 12 :xNi 2+ Where x = 0.3~3.0 mol; this phosphor is based on a hexagonal close-packed structure, Ni 2+ Ions occupy octahedral sites in [ZnO6], and through crystal field modulation and impurity energy level design, ultra-wideband emission covering 1200–2000 nm (NIR-II~III) is achieved. During preparation, BaCO3, La2O3, ZnO, WO3, and NiO are weighed according to stoichiometric ratios, and 5 mol% H3BO3 is added as a sintering aid. After grinding and mixing with alcohol and drying, the mixture is sintered at 1623 K for 4 hours in air and then naturally cooled to obtain the target phosphor. This phosphor can be mixed with PDMS at a weight ratio of 3:1 and cured at 353 K for 2 hours to form a flexible transparent film. This film is then coupled with a 330 nm ultraviolet continuous laser for excitation to produce NIR-III emission. The phosphor of this invention can be applied to night vision imaging, long-distance parking lot security monitoring, and anti-counterfeiting information encryption identification based on the absorption differences of different inks, possessing advantages such as wide emission spectrum, simple preparation process, and flexible application.

The present application relates to a kind of perovskite precursor solution stability protection method, belong to perovskite photovoltaic technical field, solve the problem that perovskite precursor solution is easily affected by light, oxygen and water vapor and occurs degradation deterioration in the process of opening bottle use.The method of the present application is: perovskite precursor solution is stored in liquid storage container, perovskite precursor solution surface is covered with a layer of liquid protective layer formed by liquid protective agent;The absorbance A of liquid protective layer in 300~550 nm wave band is greater than or equal to 3.The present application forms threefold protection of light shielding, oxygen isolation and water vapor barrier through liquid protective layer, can continuously provide interface protection in the process of opening bottle and static storage, effectively improve the stability of perovskite precursor solution.

The invention relates to the field of ceramic materials, in particular to a preparation method of a high-thermal-conductivity aluminum nitride tape-casting green body and a ceramic chip thereof, and the high-thermal-conductivity aluminum nitride tape-casting green body is prepared from the following raw materials in parts by weight: 100 parts of aluminum nitride powder, 1.5-3.5 parts of a dispersing agent, 8-12 parts of a binder, 3-6 parts of a plasticizer, 1-5 parts of a sintering aid and 80-100 parts of water. According to the invention, due to the low hydrolytic property of the slurry, the uniform distribution of the sintering aid and the optimized sintering schedule, the thermal conductivity of the obtained ceramic wafer is stabilized at 200W / (m.K) or above, the ceramic wafer has a uniform and compact microstructure, the bending strength can reach 450MPa or above, and the requirement of high-end application on mechanical reliability is met.

This invention discloses a rust-preventing and bonding friction material for automobiles and its preparation method. The raw materials include: 5-20% phenolic resin, 20-40% reinforcing fiber, 25-45% friction filler, and 15-30% functional filler; the functional filler is zinc hexadecyl phosphate modified nano-silica. Zinc hexadecyl phosphate is added to anhydrous ethanol and heated in a water bath to obtain a ZHP dispersion. The dried nano-silica is added to anhydrous ethanol, heated in a water bath with stirring, and then the ZHP dispersion is added dropwise while stirring. After the addition is complete, the mixture is kept at a constant temperature and refluxed for reaction. After the reaction is complete, the solid product is separated, washed with anhydrous ethanol, and vacuum dried to obtain zinc hexadecyl phosphate modified nano-silica. This invention provides a simple friction material formulation, uses few raw materials, and has a simple preparation method, which can effectively reduce the cost of friction materials and improve their wear resistance, prevent rust adhesion, and extend the service life of braking devices.

The invention discloses a water-based inorganic coating for a concrete structure and a preparation method of the water-based inorganic coating. On one hand, the invention provides the water-based inorganic coating for the concrete structure, and the water-based inorganic coating comprises a component A and a component B, the component A is prepared from the following components in parts by weight: 20 to 30 parts of modified water glass, 8 to 12 parts of fine filler, 6 to 10 parts of superfine filler, 0.5 to 1 part of fluosilicate, 50 to 60 parts of Portland cement, 2 to 4 parts of retarding type water reducing agent and 25 to 35 parts of water; the component B is prepared from the following components in parts by weight: 30 to 40 parts of polybutadiene type silane terminated polyurethane prepolymer, 50 to 60 parts of Portland cement, 18 to 24 parts of nano titanium dioxide, 1 to 1.5 parts of polycarboxylic acid type water reducing agent and 35 to 45 parts of water. On the other hand, the invention further provides a preparation method of the water-based inorganic coating for the concrete structure. The waterproof and anti-seepage mortar has excellent deep permeable crystallization performance, and is relatively high in waterproof performance and anti-seepage performance.