20results about How to "Strong absorption capacity" patented technology

The invention relates to environment-friendly hydrophobic ink and a preparation method thereof, and belongs to the technical field of water-based ink. A copolymerization modifier capable of being combined in a water-based polyacrylate emulsion in an initiation polymerization mode in the stage of preparing the modified water-based polyacrylate emulsion is prepared, and an o-hydroxy aromatic ketone structure in the copolymerization modifier can endow water-based ink with lasting ultraviolet absorption performance; the trifluoromethyl structure can reduce the surface energy of the water-based ink, and the benzimidazole ring structure can form stable coordinate bonds with metal ions, so that the bonding performance of the water-based ink and a metal substrate is enhanced; when the copolymerization modifier is used for modifying the water-based polyacrylate emulsion, the long-term performance, the hydrophobic and oil-resistant performance and the adhesion performance on the surface of a metal base material of the finished water-based ink can be effectively improved.

The invention discloses a preparation method of a foamed thermal-insulation ceramic decorative plate in the technical field of building decorative materials. The method comprises the following steps: carrying out ball milling, spray drying, granulating and ageing on raw materials such as ceramic waste and kaolin; mixing and dispersing the aerogel-hydrogel gradient core-shell structure composite modified material and ceramic particles, and sieving to obtain composite powder; compounding sodium bicarbonate and azodicarbonamide with a foaming agent, mixing the foaming agent with the composite powder, and adding a surfactant and a dispersing agent to adjust the viscosity so as to prepare expandable ceramic slurry; the slurry is injected into a mold and coated with low-temperature glaze, and stepped heating sintering is conducted through a tunnel kiln and comprises the steps of preheating glue discharging, primary foaming, secondary sintering, gradient cooling and the like. The thermal insulation performance, the mechanical strength, the weather resistance and the decoration performance are synergistically improved, and the product is low in heat conductivity coefficient, high in compressive strength, excellent in ultraviolet aging resistance, firm in decoration layer combination and suitable for building outer walls and other scenes.

This invention relates to the field of flue gas treatment technology, specifically to a sulfur dioxide gas absorbent, comprising the following raw materials by weight: 90-100 parts of an aqueous amine solution and 2-6 parts of additives. In this invention, the nitrogen-zinc ion-sulfur active center of the catalyst acts as a molecular key, efficiently and reversibly coordinating and activating sulfur dioxide molecules, significantly reducing the reaction energy barrier and fundamentally improving the intrinsic absorption rate. The enhancer, with its high specific surface area, provides a large interface for the reaction. Its surface sulfonic acid groups not only buffer the decrease in system pH, maintaining the optimal acid-base environment for the reaction, but also catalyze the conversion of absorption intermediates into more stable products, thereby shifting the reaction equilibrium to the right. Under the combined effect of these two factors, the catalyst accelerates the reaction towards equilibrium, while the enhancer continuously shifts the equilibrium point, resulting in a higher absorption capacity for the absorbent.

This invention belongs to the field of hollow multi-component nanomaterial preparation technology, specifically disclosing a hollow Cu3NbSe4 nanomaterial, its preparation method, and its application. The microstructure of the nanomaterial is a nanoscale hollow cubic structure. The preparation method includes: (1) dissolving niobium source and selenium source separately in oleylamine solvent by heating for later use; (2) treating the soluble copper source and the niobium source dissolved in (1) in a high-boiling-point organic solvent for deoxygenation and dehydration, and then carrying out a solvothermal reaction; (3) when (2) is heated to a certain temperature, injecting the selenium source dissolved in (1) to carry out a solvothermal reaction, and separating the obtained solid product after the reaction is completed. The synthesis process of this invention is simple, the reaction conditions are mild, and the energy consumption and cost are low; more importantly, it realizes the preparation of hollow Cu3NbSe4 nanomaterial with uniform morphology and size, high crystallinity, and stronger light absorption capacity, and the prepared hollow Cu3NbSe4 shows excellent performance in photocatalytic hydrogen production.

The application discloses a kind of flame-retardant bacteriostatic wave-absorbing PET fibers and preparation method thereof, the fiber includes fiber body and is arranged on the bacteriostatic wave-absorbing layer of fiber body surface, fiber body is skin-core composite structure, from inside to outside includes core layer and flame-retardant wave-absorbing barrier layer in sequence;Flame-retardant wave-absorbing barrier layer is the raw material of flame-retardant wave-absorbing mixture, includes the following components by weight parts:PET polyester chip 100, flame retardant 9-15, flame-retardant wave-absorbing particle 22-40, compatible agent 1.5-4.The bacteriostatic wave-absorbing layer in the application can provide excellent electromagnetic wave absorption capacity through the bacteriostatic wave-absorbing particle therein, can realize effective protection to electromagnetic pollution, and also can provide excellent antibacterial performance through active oxygen generated under light and / or electromagnetic wave irradiation.Flame-retardant wave-absorbing barrier layer can provide good reflection and absorption electromagnetic wave capacity in addition to being able to improve flame-retardant performance through the flame-retardant wave-absorbing particle therein.

The invention discloses a continuous color-changing intelligent energy-saving window prepared through laser-induced forward transfer, which comprises a first matrix layer, a composite functional layer and a second matrix layer which are sequentially stacked, and the composite functional layer comprises a three-dimensional surface plasmon structure layer and a thermochromic liquid crystal layer, the three-dimensional surface plasmon structure layer is prepared through a laser-induced forward transfer process, and a patterned three-dimensional micro-nano structure is formed on the first substrate layer; the thermochromic liquid crystal layer comprises liquid crystals and a chiral agent, and the reflection wavelength of the thermochromic liquid crystal layer is continuously adjustable in the whole visible light wave band along with temperature changes. Energy saving is achieved through strong absorption of the three-dimensional surface plasmon structure layer on visible light and infrared bands in ambient light, and the photothermal effect of the three-dimensional surface plasmon structure layer is used for driving the thermochromic liquid crystal layer to generate continuous and reversible color changes of full visible light bands; meanwhile, the structural layer is black or dark due to strong absorption, and the brightness of the reflection color of the liquid crystal layer is remarkably enhanced.

The application provides a compound, a preparation method thereof and a composition containing the compound. A structural formula of the compound is shown as formula I. The preparation method of the compound is as follows: mixing diisopropanolamine and ethylene glycol diglycidyl ether, adding the mixture into a reaction kettle, adding a solvent, and reacting at 80-120 DEG C for 4-8 h, and then distilling at 50-80 DEG C under reduced pressure, collecting the distillation product, and obtaining the compound; mixing the compound and N-methyldiethanolamine in a mass ratio of (1-2):(2-3), and uniformly mixing to obtain a 20-60 wt% aqueous solution, and obtaining the composition.

The invention discloses an ad hoc network communication system based on spatial quantum key distribution, and relates to the technical field of quantum communication. According to the invention, the information is encrypted by applying the quantum key distribution technology, so that theoretical unconditional security can be realized, and any eavesdropping behavior can disturb the quantum state, so that both communication parties can immediately perceive the quantum state, and the risk of information leakage is fundamentally eliminated. According to the quantum key distribution system, through modulation of a heterodyne detector, a homodyne detector and a traveling wave parameter amplifier on a generated microwave dual-mode compression state and cooperation of detection of the heterodyne detector, the homodyne detector and the traveling wave parameter amplifier in the quantum key distribution system of the two communication parties, quantum key distribution based on a microwave state in a free space is achieved; the microwave state has stronger resistance to absorption, heat dissipation, turbulence and thermal noise of the air atmosphere, the efficiency and the propagation distance of quantum key distribution are enhanced, and the key management effect of the ad hoc network communication system is improved.

The invention provides a general polymer modified sponge hydrophobic material and a preparation method thereof, the general polymer modified sponge hydrophobic material comprises a sponge and a general polymer anchored on the sponge, based on the total weight of the hydrophobic material, the loading capacity of the general polymer is 1-15 wt%, and the water contact angle of the hydrophobic material is 120-150 degrees. According to the present invention, by using the strong hydrophobic and oleophylic properties of the general polymer material, the general polymer material is anchored on the skeleton of the melamine sponge or the polyurethane sponge through repeated impregnation, such that the obtained hydrophobic material can achieve rapid and efficient oil-water separation, and has the oil substance adsorption capacity of 80-180 g / g, which is up to 167 times of the self weight;

The invention relates to the field of cosmetics, in particular to a plant sunscreen synergist as well as a preparation method and application thereof. The plant sunscreen synergist is composed of a scutellaria baicalensis extract, a tea leaf extract and a ligusticum wallichii extract, and when the weight ratio of the scutellaria baicalensis extract to the tea leaf extract to the ligusticum wallichii extract is 3: 1: 1, the synergist has the absorption effect of effective coverage of different UV wave bands, and the ultraviolet ray absorption effect is optimal.

The present application relates to a kind of BODIPY derivatives small molecules and its preparation method and application, the BODIPY derivatives small molecule is obtained by the reaction of BODIPY material as base, triphenylamine analogue;It is to respond type BODIPY as base and triphenylamine analogue is obtained by coupling reaction, can produce ROS under ultrasonic condition, realize the cell membrane rupture of bacteria, can be used for antibacterial, and ordinary bacteria and drug-resistant bacteria have good antibacterial effect, can be used for sonodynamic therapy, photodynamic therapy.Compared with other BODIPY derivatives by photothermal photodynamic therapy, with deep penetration ability, can be used in deep bacterial infection or excessive inflammation;The small molecule prepared has ultrasonic effect, small molecule has strong absorption in the range of 600-1200nm;Small molecule can be coated self-assembly into nanoparticle by amphiphilic carrier, improve the stability of drug;The preparation method of the application, process flow is simple, and product stability is high.

The application discloses an anti-fatigue traditional Chinese medicine composition and a preparation method thereof, and contains the following traditional Chinese medicine raw materials in the weight ratio: 8-12 parts of soybean peptide powder, 9-15 parts of rhizoma polygonati, 3-9 parts of ginseng, 6-12 parts of lily, 9-30 parts of astragalus, 6-12 parts of medlar, 10-15 parts of rehmannia, 6-15 parts of jujube, 5-10 parts of semen ziziphi spinosae, 6-15 parts of lotus seed, 11-13 parts of yam, and 6-8 parts of liquorice, and a preparation method thereof is disclosed; after the medicinal materials are extracted, the soybean peptide powder is added to prepare an oral liquid; the medicine has the effects of replenishing energy, benefiting qi and consolidating the root, calming the heart and soothing the nerves, and has a good recovery effect on fatigue; and the traditional Chinese medicine composition is an oral liquid prepared from the above traditional Chinese medicine raw materials in the weight ratio or further including pharmaceutically acceptable adjuvants.

The invention relates to a ferrite-hollow glass bead composite material and a preparation method thereof, and belongs to the technical field of electromagnetic wave absorbing materials. The preparation method comprises the following steps: (1) dispersing amino-functionalized hollow glass beads, a bivalent soluble iron salt and a trivalent soluble iron salt in water, and carrying out a co-precipitation reaction under an alkaline condition; and (2) carrying out hydrothermal crystallization reaction on the reaction system after the coprecipitation reaction in the step (1) at 150-200 DEG C. Through the optimized two-step process, high-quality and complete coating of the ferrite shell layer is realized, and the product performance is remarkably improved. The preparation method disclosed by the invention does not need complex equipment, is mild in reaction condition and simple in process flow, and is suitable for industrial large-scale production.

The invention discloses a porous polyurethane skeleton interface evaporator based on MXene / carbon black synergistic photothermal conversion and a preparation method and application thereof.The method comprises the steps that a Ti3AlC2 precursor is selectively etched through a lithium salt-acid system, and MXene powder is prepared; polyvinylpyrrolidone is dissolved in distilled water to form a dispersion medium, carbon black and MXene powder are added into the dispersion medium for uniform dispersion, and a composite photo-thermal dispersion system is constructed; then, polyurethane foam is immersed in the dispersion system, through adsorption and drying treatment, the photo-thermal material is stably loaded on the surface of a foam framework and in internal pore channels, and therefore the composite photo-thermal evaporator with the high light absorption capacity and the efficient water transportation performance is obtained. The preparation method is simple in technological process, wide in raw material source, low in cost and environmentally friendly, and the prepared photo-thermal evaporator is suitable for high-salinity wastewater treatment and has a good application prospect in the field of water-salt-energy synergistic utilization.

This invention belongs to the field of coating materials, specifically including an anti-fog coating, its preparation method, and its application. The raw materials for preparing the anti-fog coating specifically include the following components: photothermal nanoparticles, polyvinyl alcohol, phytic acid solution, glutaraldehyde solution, and deionized water in a ratio of 0.6 kg: 15 kg: 20 L: 10 L: 150 L. The photothermal nanoparticles are added to deionized water and ultrasonically dispersed to obtain a uniform nanoparticle suspension. Polyvinyl alcohol is added to this suspension, and the system is placed in a high-temperature water bath and magnetically stirred until completely dissolved. Then, an appropriate amount of phytic acid solution is added, and ultrasonically dispersed until the phytic acid is fully dissolved. Next, glutaraldehyde solution is added to the mixture, and magnetically stirred to allow the glutaraldehyde to fully react with the system components, obtaining a stable and dispersed coating. Finally, the coating is uniformly applied to the surface of a glass substrate and allowed to air dry naturally in a ventilated area. The resulting coating effectively inhibits the formation of fog droplets and accelerates the dissipation of existing fog droplets, while maintaining good light transmittance.

This invention belongs to the field of lead screw transmission technology and discloses a lead screw end limiting and buffering structure, including a lead screw and a limiting and buffering device. The limiting and buffering device is located at the end of the lead screw. When the nut on the lead screw moves to the end of the lead screw, the limiting and buffering device first limits the axial and rotational movement of the nut. When the limiting torque set by the limiting device is exceeded, the limiting device fails, thereby buffering. The buffer is located between the fixed part and the rotating part. The closer the distance between the fixed part and the rotating part, the greater the force exerted by the buffer on the rotating part. During normal operation, this invention achieves a reliable mechanical limiting function through the limiting pin, with high limiting accuracy. Under abnormal impact conditions, the limiting pin fails at the set torque threshold, limiting the peak instantaneous impact load below the set value, effectively protecting the lead screw, nut, and other structural components from damage, and avoiding the problem of excessive impact load generated by rigid limiting structures.

The utility model relates to photovoltaic technical field especially relates to a kind of perovskite crystalline silicon four-end laminated photovoltaic module.The perovskite crystalline silicon four-end laminated photovoltaic module includes perovskite component and crystalline silicon component.Edge of perovskite component is provided with at least one gap.Crystalline silicon component includes laminated part and frame, and frame is wrapped around the four of laminated part.Perovskite component is set on the front of crystalline silicon component, and the backplate glass of perovskite component is overlapped on the frame of crystalline silicon component and is formed with frame and laminated part to form accommodating chamber;Gap is communicated with accommodating chamber.The perovskite crystalline silicon four-end laminated photovoltaic module can improve power generation efficiency, save cost.

The present application relates to a kind of I type photosensitizer based on squarylium and its preparation method and application, belong to the preparation of chemical material and biomedical nanomaterial technical field.The I type photosensitizer provided by the present application, its molecular structure is with tetraphenyl ethylene substituted indoline derivative as donor, with square acid as acceptor.The rotor structure of tetraphenyl ethylene can effectively avoid the close π-π stacking between molecules.The I type photosensitizer of the present application has the advantages of high molar absorption coefficient, good light stability and low biological toxicity, and also shows the efficient I type active oxygen (·OH) generation capacity and photo-thermal conversion capacity (54.2%), therefore it can be used for photodynamic / photothermal combined antitumor and antibacterial treatment.In photodynamic / photothermal combined treatment, after using laser irradiation, the I type photosensitizer can simultaneously generate a large amount of active oxygen (·OH) and heat, which can efficiently kill tumor cells and bacteria.

The application discloses a desulfurization and mist removal integrated device based on wet flue gas desulfurization, and relates to the technical field of flue gas desulfurization.The device comprises a desulfurization tower, an oxidation reaction pool is arranged at the bottom of the inside of the desulfurization tower, an inner partition plate is arranged in the inside of the desulfurization tower, a smoke passing interval is arranged between the inner partition plate and the liquid surface of the oxidation reaction pool, a semicircular baffle is rotatably arranged at the top of the inner partition plate, a mist remover is fixedly arranged in the inside of the desulfurization tower, the mist remover is arranged above the semicircular baffle, a porous tray is fixedly arranged on one side of the bottom of the inner partition plate, and a spraying assembly is rotatably arranged in the inside of the inner partition plate.The device adopts a processing mode of first concentration and then dilution, thick smoke stays for a long time between the oxidation reaction pool and a thick smoke processing cavity, has more opportunities to fully contact with absorbents, forms more effective reactions, guarantees the removal of high-concentration sulfur dioxide, and enables the desulfurization tower to process larger-flow flue gas.

This invention belongs to the field of gas separation and carbon capture technology, specifically relating to a CO2 adsorbent suitable for treating hot flue gas, its preparation method, and its application, particularly suitable for the efficient capture and separation of CO2 in medium- and high-temperature industrial hot flue gas systems. The adsorbent is a ternary eutectic solvent, with 4-methylimidazole (4MI) as the first hydrogen bond acceptor, 3-aminopropanol (3AP) as the hydrogen bond donor, and monoethanolamine (MEA) as the second hydrogen bond acceptor; wherein the molar ratio of 4-methylimidazole (4MI) to 3-aminopropanol (3AP) is 1:3, and the mass of monoethanolamine (MEA) accounts for 20-40 wt% of the mass of the binary eutectic solvent composed of 4MI and 3AP. This invention solves the problem of decreased absorption capacity and inability to adapt to industrial hot flue gas scenarios of existing DES-type CO2 adsorbents at medium and high temperatures, achieving efficient CO2 capture in a temperature range of 20-100℃. Simultaneously, this adsorbent possesses characteristics of water resistance, good thermal stability, and excellent cycle performance, making it suitable for industrial applications.