12results about How to "High chroma" patented technology

The invention belongs to the technical field of automobile coatings, and particularly relates to an automobile original factory exterior decoration water-based black paint and a preparation method thereof. The invention provides automobile original factory exterior decoration water-based black paint. The automobile original factory exterior decoration water-based black paint is prepared from components in parts by mass as follows: 25-50 parts of water-based polyurethane resin, 5-15 parts of water-based polyester resin, 1-5 parts of amino resin, 0.5-1 part of a first wetting agent, 0.1-0.5 parts of a defoaming agent, 3-5 parts of a thixotropic agent, 3-10 parts of a solvent, 10-20 parts of water-based black slurry, 1-3 parts of a pH regulator, 1-3 parts of a functional aid and 20-30 parts of water. The functional auxiliary agent comprises polyethylene glycol and diacetone acrylamide. The automobile original factory exterior decoration water-based black paint provided by the invention has excellent comprehensive properties such as excellent high-speed shearing resistance, stable construction performance, high-pressure water gun flushing resistance, boiling resistance, excellent heat storage performance, acid resistance, alkali resistance, gasoline resistance, diesel oil resistance, engine oil resistance, high-speed shearing resistance, water resistance, excellent adhesive force and the like.

The invention provides a hydrocracking catalyst, which is characterized in that a catalyst I is formed by mixing a Y molecular sieve, alumina and an adhesive to serve as a carrier and is loaded with nickel and tungsten, a catalyst II is formed by mixing a ZSM-5 molecular sieve, alumina and an adhesive to serve as a carrier and is loaded with cobalt and tungsten, and the catalyst I and the catalyst II are mixed to obtain the hydrocracking catalyst. Cobalt and tungsten are loaded on the ZSM-5 molecular sieve, so that the influence of aromatic hydrocarbon on alkane adsorption reaction is reduced, bond breaking and isomerization reaction of alkane are enhanced, the pour point of the transformer oil is remarkably reduced, and the yield of the transformer oil is increased; nickel and tungsten are loaded on the Y molecular sieve, so that the ring-opening cracking reaction of aromatic hydrocarbon is enhanced, the aromatic hydrocarbon content in the transformer oil can be remarkably reduced, and the stability and chromaticity of the transformer oil are improved. The composite catalyst gives consideration to indexes of the aromatic hydrocarbon content and the pour point of the transformer oil, can realize partitioned reinforcement of an aromatic hydrocarbon ring-opening reaction and a paraffin bond-breaking isomerization reaction, and can directly produce a qualified transformer oil product.

The application discloses a method for continuously preparing high-purity sulfolane, and belongs to the technical field of organic synthesis. By introducing a solvent and a stable free radical type polymerization inhibitor, the self-polymerization of butadiene is effectively inhibited. By adopting a cooling crystallization mode to remove sulfur dioxide, the thermal decomposition of sulfolene sulfone is avoided, high yield and high purity are realized, the service life of a hydrogenation catalyst is not affected, and the catalyst can be completely reused. The cooling crystallization also realizes the separation of the polymerization inhibitor and sulfolene sulfone. The polymerization inhibitor is dissolved in the solvent and recycled, and does not enter the hydrogenation system, so that the final sulfolane product has a purity of above 99.9% and has no chromaticity problem. The process saves energy consumption, the solvent has wide universality, operation is simple, the process is safe and environment-friendly, easy to scale up, and meets the green production requirements.

The application discloses a method for homogenizing fermentation and producing aroma of cigar tobacco leaves and application thereof, and the method comprises the following steps: S1. After airing, the cigar tobacco leaves are initially humidified, and an apple acid solution with a pH value of 7-7.5 is sprayed on the initially humidified cigar tobacco leaves, and the humidified tobacco leaves are balanced to obtain humidified tobacco leaves; S2. The humidified tobacco leaves are wrapped with gauze, and then fermented to obtain aroma-producing cigar tobacco leaves. Through the addition of the apple acid, the humidification and fermentation of the cigar tobacco leaves are realized, the aroma content of the fermented cigar tobacco leaves is improved, the homogenization degree of the color and aroma content of the fermented tobacco leaves is improved, and the amount of carotenoid conversion products, cembrane degradation products, phenylalanine conversion products and bomeol aroma substances is extremely obviously improved.

The present application relates to the technical field of microfluidic detection, and discloses a microfluidic detection system and a liquid detection method, wherein the microfluidic detection system comprises a paper-based microfluidic chip with a detection cell (21) and a regulation unit, the regulation unit is configured to regulate at least one of the environmental temperature, air flow speed, humidity and vacuum degree of the area where the detection cell is located, so as to regulate the limited evaporation speed of the liquid in the detection cell through the vent hole. According to the migration mechanism of colorimetric on the paper chip, the evaporation speed of different positions of the detection cell is regulated by covering the non-water-permeable and air-permeable part with a vent hole on the detection cell, and at the same time, the evaporation speed of the liquid in the detection cell through the vent hole is regulated by using the regulation unit, so as to effectively improve the efficiency of the colorimetric migrating and enriching with the supplement of moisture to the position with faster evaporation speed in the evaporation process, improve the detection sensitivity and reduce the detection limit.

The present application discloses an edge-entry backlight module and a display device, which relate to the field of display technology and can improve the yellowing problem of the existing edge-entry backlight module away from the light source area, so as to improve the chromaticity uniformity of the light output by the edge-entry backlight module. The edge-entry backlight module comprises: a light source; a light guide plate, the light guide plate comprises a near light source area and a far light source area, the near light source area is located between the light source and the far light source area; an optical film, the optical film is arranged opposite to the light guide plate, and the optical film corresponding to the far light source area is provided with reflective particles.

The present invention relates to a sodium secondary battery electrolyte and a sodium secondary battery. The sodium secondary battery electrolyte comprises an organic solvent, an electrolyte sodium salt and a fluorine-containing additive having a structure shown in formula (I), wherein R1, R2, R3, R4 and R5 are independently selected from -H, halogen, C1-C 20 Alkyl, halogenated C1~C 20 Alkyl, C6~C 26 Aryl or halogenated C6~C 26 Aryl. The sodium secondary electrolyte can reduce the irreversible decomposition reaction of the electrolyte, significantly improve the cycle stability, capacity retention rate and coulomb efficiency of the electrolyte, and can also significantly inhibit the increase of electrolyte acidity and chromaticity. When applied to sodium secondary batteries, it can induce the formation of a stable, low-impedance passivation film on the electrode surface, further improve the battery's cycle performance, and promote more uniform sodium plating and stripping on the sodium metal surface. It can also reduce the contact angle between the electrolyte and the electrode, improve wettability, and facilitate sodium ion transmission. #imgabs0#

The invention provides a composite hydrocracking catalyst, which is prepared by mixing a ZSM-5 molecular sieve and alumina-loaded nickel and molybdenum as a catalyst I and a Beta molecular sieve and alumina-loaded cobalt and molybdenum as a catalyst II. According to the present invention, the indexes of the aromatic hydrocarbon content and the pour point of the transformer oil can be considered, and the aromatic hydrocarbon ring-opening reaction and the alkane bond-breaking isomerization reaction can be subjected to the partition strengthening so as to reduce the aromatic hydrocarbon content and the pour point in the hydrocracking diesel oil, such that the qualified transformer oil product can be directly produced by using the conventional hydrocracking means.

The invention relates to the technical field of preparation of 4, 4 '-dihydroxybiphenyl, in particular to a method and a device for synthesizing 4, 4'-dihydroxybiphenyl. The synthesis method comprises the following steps: uniformly mixing a solvent and a boiling point auxiliary agent to obtain a high-boiling-point solvent; the preparation method comprises the following steps: mixing 3, 3 ', 5, 5'-tetra-tert-butyl biphenol and a high-boiling-point solvent to obtain a first solution; mixing Lewis acid and a reducing auxiliary agent with a high-boiling-point solvent to obtain a second solution; putting the first solution into a synthesis device, dropwise adding the second solution into the first solution under the protection of nitrogen, and continuously reacting after dropwise adding until no isobutene gas is generated, so as to obtain a reaction completion solution; by means of the method, the catalytic efficiency of the tert-butyl removal reaction can be improved, the product yield, purity and color can be improved, isobutene generated in the reaction process can be effectively separated and recycled, and the method is environmentally friendly.

The invention relates to the technical field of ceramic substrates, in particular to a black pigment for a Ce-V series ceramic substrate and a preparation method and application thereof.The black pigment for the Ce-V series ceramic substrate is prepared from CeO2, V2O5 and NaCl through a solid-phase method, and solid-phase reaction products comprise CeVO4, V2O3, VO2, Ce4O7 and NaClO4; the black pigment for the Ce-V series ceramic substrate does not contain heavy metal elements, so that the harm of the heavy metal elements to a human body in actual production is avoided; the natural color material still has a good color generation effect at the high temperature of 1000-1600 DEG C; the aluminum oxide black porcelain added with the natural color material meets the requirements of packaging ceramics in electrical properties, such as volume resistivity; the natural color material can be applied to the preparation of various ceramic substrates, such as aluminum oxide, zirconium oxide, aluminum nitride and the like, and has a wide application range.

The invention discloses a preparation process of fluoroethylene carbonate. The preparation process comprises the following steps: S1, connecting a liquid inlet end of ethylene carbonate with a three-stage tandem reaction mechanism; s2, the fluorine-nitrogen mixed gas and ethylene carbonate are introduced into a three-stage cascade reaction mechanism for a reaction, and generated HF tail gas flows into a hydrogen fluoride recovery pipe; s3, heating the product with hot water, and pumping the material into a deacidification kettle for deacidification; and S4, carrying out three-stage rectification on the deacidified material to finally obtain the product. S5, converging the HF tail gas, introducing the converged HF tail gas into a three-stage serial ethylene carbonate pre-reaction unit, connecting a storage tank for storing ethylene carbonate into the ethylene carbonate pre-reaction unit to pre-react with the introduced tail gas HF, and connecting the pre-reacted ethylene carbonate into an ethylene carbonate liquid inlet end to react with the fluorine-nitrogen mixed gas; s6, the tail gas exhausted by the ethylene carbonate pre-reaction unit is exhausted after being treated by a tail gas treatment device. According to the method, the fluorine gas conversion rate can be greatly increased, and reaction conversion of fluorine gas is achieved in a closed loop.

The present invention relates to the technical field of TMBP preparation, and in particular to a method for synthesizing TMBP, comprising the following steps: dissolving ruthenium chloride in deionized water, adding magadiite under nitrogen protection and stirring, filtering, washing and drying after impregnation and stirring, and obtaining ruthenium / magadiite; adding ruthenium / magadiite, 2,6-dimethylphenol and tetrahydrofuran to a high-pressure reactor, first passing oxygen for oxidative coupling reaction, then cooling and passing hydrogen for reduction reaction, filtering the reduction reaction product, and distilling and concentrating the filtrate to obtain TMBP. The present invention adopts ruthenium / magadiite as a supported catalyst, and in the whole production process, high-quality TMBP with high yield, high purity and chromaticity can be obtained without changing the catalyst and the reactor, and at the same time, ruthenium / magadiite is easy to separate and can be reused, reducing production costs and avoiding environmental pollution.