13results about How to "Reduce hydrophobicity" patented technology

The application discloses an inorganic silicon modified water-based corrosion and rust prevention paint containing functional polysiloxane as well as a preparation method and application thereof. The paint contains, in parts by weight, 30-60 parts of a water-based hybrid acrylic emulsion, 1-15 parts of functional polysiloxane, 5-25 parts of inorganic silicon-based corrosion inhibitor filler, 10-40 parts of pigment and filler, 1-5 parts of water-based additive, and the balance of water. The functional polysiloxane is amino or silanol / alkoxy functionalized polysiloxane emulsion; and the inorganic silicon-based corrosion inhibitor filler is a combination of calcium ion exchange type silica gel pigment and calcium silicate. The inorganic hybrid emulsion, the functional polysiloxane and the inorganic silicon corrosion inhibitor pigment are compounded to endow the coating with excellent physical shielding property, active corrosion inhibition and surface hydrophobicity, realize fast drying, high hardness, excellent water and salt fog resistance and long-acting corrosion prevention performance, and especially can adapt to the harsh requirements of marine environment for the water-based corrosion prevention paint, which has important significance for the development of the shipbuilding industry.

The invention provides a steel slag-based building material and a preparation method thereof. The steel slag-based building material comprises a steel slag matrix, and a micro-dot array layer, a nano rough layer and a fluoride-free low-surface-energy interface layer are sequentially formed on the surface of the steel slag matrix; the micro-dot array layer comprises bulge structures which are distributed on the surface of the steel slag matrix in an array manner. According to the steel slag-based building material provided by the invention, the convex structures distributed in the micro-dot array layer in an array manner are compounded with the nano rough units in the nano rough layer, so that double-scale rough is formed, the surface layer adopts a low-interface-energy interface, the interface free energy and adhesion work of the surface of the building material are reduced, the friction performance of the building material is guaranteed, and the service life of the building material is prolonged. And low adhesion, hydrophobicity and durability of the steel slag-based building material are realized.

The invention provides a jujube fruit cracking prevention film agent as well as a preparation method and a use method thereof.The jujube fruit cracking prevention film agent is prepared from the following raw materials in parts by mass: 1-5 parts of a polyvinyl alcohol solution, 1-5 parts of a polyacrylamide solution and 0.5-1 part of a modified oxidized humic acid solution; wherein the polyvinyl alcohol solution is prepared from the following components in parts by mass: 1 to 5 parts of polyvinyl alcohol, 0.1 to 0.5 part of cross-linking agent and 50 to 120 parts of water; the polyacrylamide solution is prepared from the following components in parts by mass: 1 to 5 parts of polyacrylamide, 0.1 to 1 part of hydrophobic monomer and 80 to 150 parts of water; the modified oxidized humic acid solution is prepared from the following components in parts by mass: 1 to 2 parts of modified oxidized humic acid, 0.05 to 0.1 part of calcium salt, 0.05 to 0.1 part of phosphorus salt, 0.05 to 0.1 part of silicon fertilizer, 0.05 to 0.1 part of borax, 0.05 to 0.1 part of growth promoting agent and 30 to 80 parts of water. The jujube fruit cracking prevention film agent can prevent jujube fruit cracking.

The invention provides a preparation method and application of modified dolomite, and belongs to the technical field of inorganic filler. The method comprises the following steps: mixing dolomite powder and a solvent to prepare slurry; a modifier is added into the slurry and stirred for a reaction, a mixed material is obtained, and the modifier comprises oleic acid and an aluminate coupling agent; and carrying out solid-liquid separation on the mixed material, collecting a solid phase, and drying the solid phase to obtain the modified dolomite. On the premise of high activity and high hydrophobicity of aluminate, oleic acid is introduced to make up for the defect that a single aluminate coupling agent may cause a high oil absorption value, so that the modified dolomite has high activation index, high hydrophobicity and low oil absorption value, thereby well improving the surface hydrophilicity and hydrophobicity and interface bonding force of the dolomite; the modified dolomite is more suitable for being combined with other components for application, the additional value of dolomite mineral resources is effectively improved, and a feasible path is provided for high-quality development of dolomite.

This invention belongs to the field of material performance testing technology, specifically relating to a method for determining the particle density of carbon anode raw materials. The method includes: injecting water into a first container until the liquid levels in the first and second containers are equal, and reading the scale of the first and second containers as V1; adding carbon anode raw material particles with a mass of m, including petroleum coke or calcined coke, into the first container; injecting a mixed solution into the first container until the carbon anode raw material particles are completely submerged, the mixed solution including pure water and a low-foaming nonionic surfactant; pre-treating the first and second containers in an ultrasonic instrument; and placing the pre-treated first and second containers into a vacuum chamber, evacuating the chamber until it reaches negative pressure, and maintaining the pressure in the vacuum chamber. This method for determining the particle density of carbon anode raw materials can accurately measure the particle density of carbon anode raw materials.

The application discloses a preparation method of a cashew phenol-based ultraviolet light curing hydrophobic antifouling coating, and specifically comprises the following steps: step 1, preparing a cashew phenol-based ultraviolet light curing monomer; step 2, preparing a fluorine-containing hydroxyl acrylate polymer according to the product obtained in step 1; step 3, preparing a cashew phenol-based polyurethane acrylate coating according to the product obtained in step 2; and step 4, preparing a cashew phenol-based ultraviolet light curing coating by adding a photoinitiator to the product obtained in step 3. The application further discloses the cashew phenol-based ultraviolet light curing hydrophobic antifouling coating; and the coating prepared by the application has the characteristics of high hydrophobicity, high light transmittance and low pollution.

The invention provides a resin composition, application of the resin composition in preparation of a copper-clad plate and the copper-clad plate, and relates to the technical field of copper-clad plate preparation, and the resin composition comprises the following raw materials: hydroxyl-modified low-molecular-weight polyphenyl ether, bismaleimide resin, a trifluoromethyl-containing bifunctional isocyanate cross-linking agent, a filling material and an initiator. A fluorine-containing polyurethane cross-linked network is constructed by introducing a trifluoromethyl-containing bifunctional isocyanate cross-linking agent, so that the water absorption and dielectric loss of the material are reduced, the dielectric stability after damp and hot is improved, and the heat resistance, dimensional stability and comprehensive reliability of a cured product are improved; therefore, the application requirements of high-frequency and high-speed copper-clad plates, antennas / radars and millimeter wave device materials are met.

The application relates to the technical field of nanofiber membrane materials, in particular to a nanofiber membrane with waterproof, breathable and radiation refrigeration functions, a preparation method and application thereof. The preparation method of the nanofiber membrane with waterproof, breathable and radiation refrigeration functions comprises the following steps: S1, spinning solution preparation: a thermoplastic polyurethane (TPU) polymer is dissolved in a composite organic solvent, after stirring and dissolving, polydimethylsiloxane (PDMS) is added, and inorganic nanoparticles are continuously added after stirring and dissolving, and the spinning solution is obtained; S2, nanofiber membrane preparation: the spinning solution of S1 is electrospun, and the nanofiber membrane is dried after spinning. The fiber membrane has the advantages of high elasticity, waterproofness and breathability while being capable of being cooled.

This utility model relates to the field of food processing technology and discloses a magnetic field treatment device for improving protein emulsification properties and reducing protein allergenicity. The device includes: a sample bottle, a circulating water pump, and a magnetic field generating mechanism connected in a sequential cycle. The sample bottle has an inlet pipe and an outlet pipe. The circulating water pump is connected to the sample bottle through the inlet pipe, and the magnetic field generating mechanism is connected to the sample bottle through the outlet pipe. This utility model, by setting up a sample bottle, a circulating water pump, and a magnetic field generating mechanism connected in a sequential cycle, simultaneously achieves the circulating transport of protein liquid and uniformly treats the protein liquid with a magnetic field to generate Lorentz force. It is simple and practical, and can effectively improve protein emulsification properties and reduce protein allergenicity.

The application provides a novel RNX propellant and a preparation method thereof; the RNX propellant comprises the following A formula or B formula; the A formula comprises the following components in mass fraction: binder: 15-25 parts; plasticizer: 1-10 parts; oxidant: 73 parts; catalyst: 2 parts; the B formula comprises the following components in mass fraction: binder: 15-25 parts; oxidant: 73 parts; catalyst: 2 parts; process aid: 1-10 parts; the application also relates to a preparation method of the aforementioned RNX propellant; the novel RNX propellant prepared by the application adopts a tertiary butyl ferrocene catalyst, the purity of which is greater than or equal to 95%, and the catalytic effect is much higher than that of solid Fe2O3 powder; in addition, the non-volatile liquid catalyst also increases the mass fraction of the binder system, so that the propellant slurry has better fluidity, and the novel RNX propellant has a higher burning rate.

This invention relates to the pharmaceutical field, specifically to linker drug conjugates, antibody drug conjugates, their preparation methods, and applications. Specifically, this invention relates to a linker drug conjugate, or a pharmaceutically acceptable salt, solvate, or solvate of said salt thereof, wherein the linker drug conjugate has the structure shown in Formula I, wherein M is a chemical structure containing a maleimide (m) fragment or a cyclooctyne fragment, X is a linker fragment consisting of 1-5 amino acids or their derivatives, and D is a cytotoxic agent. The linker drug conjugate of this invention can release the payload through enzymatic hydrolysis after removing the hydrophobic PAB structure, thereby reducing the hydrophobicity of the linker-drug and decreasing the polymer content generated during ADC preparation, while also exhibiting corresponding cytotoxic activity, M-X-D Formula I.

The invention relates to the technical field of flocculation, and provides a hydroxamic acid type aluminum oxide flocculant and a preparation method thereof.The preparation method comprises the steps that 1, a water phase and an oil phase are mixed and emulsified, a reducing agent is added for a polymerization reaction, and a first product emulsion is obtained; (2) carrying out a first-stage reaction on the first product emulsion and N, N-carbonyldiimidazole to generate an intermediate, and then adding hydroxylamine to carry out a second-stage reaction to obtain a second product emulsion; and (3) adding a silicon compound into the second product emulsion, heating, and adding a phase inversion agent to obtain the hydroxamic acid type aluminum oxide flocculant, according to the hydroxamic acid type aluminum oxide flocculating agent, the red mud settling speed of 900-700ml can be within 5 seconds, 280-300ml of mud layer can be compressed within 3 minutes, the supernate is clear, and the flocculating capacity is better.