19results about How to "Good chroma" patented technology

The invention relates to the field of biological medicines, in particular to a facial anti-aging collagen peptide, a composition and an application of the facial anti-aging collagen peptide, and particularly relates to a 21-type recombinant humanized collagen peptide (ColpepA1 21) and an application of a composition of the 21-type recombinant humanized collagen peptide in anti-aging treatment and skin care. The recombinant collagen provided by the invention can effectively promote the repair process after skin injury, enhance the hydration state and barrier function of the skin, reduce fine lines and wrinkles, and improve the compactness and elasticity of the skin.

The invention belongs to the technical field of wastewater treatment, and relates to a method for simultaneously removing ammonia nitrogen and organic pollutants in landfill leachate. The technical problems that in the prior art, the removal effect of high-concentration ammonia nitrogen and organic pollutants in landfill leachate is poor, the follow-up biochemical treatment effect is limited, and a biochemical treatment system is prone to being subjected to huge impact are solved. The invention provides a method for simultaneously removing ammonia nitrogen and organic pollutants in landfill leachate. The method comprises the following steps: carrying out struvite crystallization reaction on the landfill leachate; carrying out solid-liquid separation after gravity settling to obtain upper liquid and crystals; the pH value of the upper liquid is adjusted to 2.0-3.0, Schwertmannite and H2O2 are added, the adding amount of the Schwertmannite is 2-20 g / L, V (H2O2) / m (Schwertmannite) is 0.25-5 mL / g, a photocatalytic reaction is conducted at the constant temperature, a photocatalytic reaction solution is obtained and filtered, and the photocatalyst is obtained. According to the method, ammonia nitrogen and organic pollutants are greatly removed in advance before the landfill leachate is subjected to biochemical treatment, so that the biodegradability of the landfill leachate is improved, the impact load of biochemical treatment is reduced, and the whole process flow is simplified.

The present application discloses a reflective film, a reflective sheet and a backlight module. The reflective film includes the following structures stacked in sequence: a base film; a first coating, the raw materials of the first coating include by mass: 50 parts of epoxy resin; 20-50 parts of nanocellulose; 0.5-3 parts of filler; a metal oxide layer, the metal oxide layer includes one or more of aluminum oxide and titanium oxide; a metal layer, including particles containing metal elements, the metal layer is not doped, wherein the particles containing metal elements include one or more of aluminum particles, silver particles, and gold particles, wherein the thickness of the metal layer is 60nm-120nm, and the metal oxide layer is 380 nm-540nm. The reflective film of the present application can solve the problems of poor thermal stability and poor service life of the reflective film on the basis of having good reflective performance.

This invention discloses a method for preparing pentaerythritol oleate based on sodium bisulfite. The method involves the esterification reaction of pentaerythritol and oleic acid with sodium bisulfite as an auxiliary agent. Sodium bisulfite, as an auxiliary agent, possesses both catalytic and antioxidant functions, effectively improving the reaction rate and product yield while suppressing oxidation side reactions. This eliminates the need for additional antioxidants, improving product quality and reducing costs. The preparation method is simple, mild, and environmentally friendly, with readily available raw materials, low-cost auxiliary agents, and easy separation. After the reaction, the catalyst is removed by hot filtration, and unreacted oleic acid is removed by solvent extraction, effectively reducing the product's acid value. The extracted potassium oleate byproduct has a purity of 80%–90% and can be used as a flotation agent, release agent, or raw material for lubricant production, making it suitable for industrial applications. The resulting pentaerythritol oil is suitable for high-end lubricants, bio-based plasticizers, and environmentally friendly coatings.

The invention belongs to the technical field of starch deep processing, and particularly relates to resistant dextrin and a preparation method thereof. According to the invention, the pH value of the starch milk is adjusted to 4.6-5.1, so that starch is denatured and subsequent dextrinization is facilitated; protein impurities in the starch can be removed, and the subsequent refining burden is relieved. The temperature of the first dextrinization is controlled to be 120-130 DEG C, so that the problem that the color of the crude resistant dextrin product is dark due to high temperature is avoided; meanwhile, the pressure of the first dextrinization is controlled to be-0.05 to-0.07 MPa, so that after the first dextrinization, the proportion of the resistant dextrin with the polymerization degree smaller than 6 is about 80 wt%; the method comprises the following steps of: performing secondary dextrinization to ensure that sufficient small molecular sugar exists in a system during the secondary dextrinization, so that resistant dextrin with high uniformity can be conveniently generated under a mild condition, and the content of the resistant dextrin with the polymerization degree of 7-13 in dietary fibers in a resistant dextrin crude product is 81wt%.

The invention relates to the technical field of ink, and discloses a preparation method of environment-friendly water-soluble engraved gravure ink, which comprises the following steps: placing porous short fibers in water, adding a surfactant, heating to 40-60 DEG C, and stirring to obtain a suspension; adding pigments into the turbid liquid in batches, fully stirring, standing, filtering, and drying the filtered material to obtain porous short fibers filled with the pigments; the preparation method comprises the following steps: selecting polyethylene glycol with a melting point of 35-60 DEG C, heating to melt, adding porous short fibers, slowly stirring, filtering, dispersing the porous short fibers, cooling at normal temperature, and slowly stirring and mixing with an anhydrous ink binder to prepare ink slurry; uniformly mixing water and an auxiliary agent to prepare a water-based diluent; before spraying, the ink slurry and the water-based diluent are mixed and are sprayed after being fully ground. According to the invention, the nano pigment is blocked in the porous short fiber, the pigment in the ink paste cannot diffuse out from surface micropores of the porous short fiber, and the porous short fiber is stably dispersed, so that the problem of pigment agglomeration and precipitation is avoided.

This invention relates to the field of wastewater treatment and discloses a device and method for the combined removal of heavy metals and antibiotics from wastewater. The device includes: a coagulation reaction zone, a pre-sedimentation tank, a high-efficiency sedimentation tank, an ozone distribution zone, an ozone oxidation tank, a primary anoxic tank, a primary aerobic tank, a secondary anoxic tank, a secondary aerobic tank, and a disinfection tank. The coagulation reaction zone is symmetrically and fixedly connected to one side of the pre-sedimentation tank, and the high-efficiency sedimentation tank is fixedly connected to the other side of the pre-sedimentation tank. This invention achieves rapid and efficient sedimentation of coagulated flocs through the combination of vertical and horizontal flow high-efficiency sedimentation tanks, removing heavy metals from wastewater in the form of precipitates. Furthermore, the advanced ozone oxidation process removes antibiotics, improves the biodegradability of the wastewater, and simultaneously disinfects the effluent, saving investment. In addition, the efficient solid-liquid separation of flat sheet membrane modules replaces the secondary sedimentation tank, effectively ensuring that the effluent is clear and meets standards.

The utility model discloses a device for producing inositol and monopotassium phosphate by using corn soaking water, and relates to the technical field of corn soaking water reutilization. An outlet of a cation exchange resin column is respectively communicated with an effluent tank and a desorption solution tank; an inlet of the effluent liquid tank is communicated with a lime milk tank, the effluent liquid tank is communicated with a hydrolysis tank, an outlet of the hydrolysis tank is communicated with a reaction tank, an inlet of the reaction tank is respectively communicated with the desorption liquid tank and the neutralizer tank, an outlet of the reaction tank is communicated with a second filter, and a filtrate outlet of the second filter is communicated with a mixed liquid tank; an outlet of the mixed liquid tank is communicated with a simulated moving bed, an organic phase outlet of the simulated moving bed is communicated with an inositol solution tank, and a water phase outlet of the simulated moving bed is communicated with a monopotassium phosphate solution tank. The obtained sylvite can be subjected to double decomposition reaction with the calcium phytate hydrolysate, outsourced sylvite is reduced, the production cost is further reduced, in addition, high-temperature incineration for removing organic impurities is not needed, the cost is saved, and the method is environment-friendly.

The invention discloses a green preparation process of capryloyl hydroxamic acid, and relates to the technical field of fine chemical synthesis. The environment-friendly preparation process of the capryloyl hydroxamic acid at least comprises the following preparation steps: mixing and stirring hydroxylamine sulfate, sodium hydroxide and ethanol, dropwise adding ethyl caprylate, and carrying out oximation reaction to obtain a reaction mixed system; reducing the temperature of the reaction mixed system, dropwise adding concentrated sulfuric acid to adjust the pH value to 6-7, and performing solid-liquid separation to obtain sodium sulfate and capryloyl hydroximic acid mother liquor; and carrying out rotary evaporation on the capryloyl hydroxamic acid mother liquor to recover the ethanol, and carrying out fractional crystallization to obtain the capryloyl hydroxamic acid. The green preparation process of capryloyl hydroxamic acid provided by the invention has the advantages of high raw material utilization rate, strong solvent recycling reusability, high product molar yield, high purity, good chroma, light smell, good corrosion resistance, continuous production, no three wastes in the process, low temperature and normal pressure, safety, green and energy saving, and accords with the green chemical engineering concept of carbon neutralization.

A display device and an electronic device including the display device are provided. The display device includes: a substrate; a transistor on a surface of the substrate; a sub-anode insulating layer disposed on the transistor and including a first portion and a second portion having different thicknesses from each other, and a third portion connecting the first portion and the second portion; a pixel electrode on the first portion, the second portion, and the third portion; a pixel defining layer on the pixel electrode and the sub-anode insulating layer; a light-emitting layer on the pixel electrode; and a common electrode on the light-emitting layer and the pixel defining layer. The sub-anode insulating layer includes a first sub-anode insulating layer and a second sub-anode insulating layer, the first sub-anode insulating layer including a first hole in the first portion, and the second sub-anode insulating layer including at least a portion defined within the first hole and corresponding to the first portion. The first sub-anode insulating layer includes an inorganic material, and the second sub-anode insulating layer includes an organic material.

The invention relates to the technical field of chemical synthesis, and discloses a preparation method of ethyl lactate silane and a reaction device.The device is composed of a shell and a membrane reaction assembly arranged in the shell, and the membrane reaction assembly is composed of a plurality of communicated membrane reaction units; the method comprises the following steps: enabling a reaction material to flow and react in a narrow space on the inner side of a membrane through a membrane reaction unit, enabling ammonia gas on the outer side of the membrane to enter the inner side of the membrane through membrane holes to absorb hydrogen chloride generated by reaction to generate ammonium chloride particles, and separating the ammonium chloride particles and solvent oil in a crude product to obtain an ethyl lactate silane product; according to the method, triethylamine is not used as an acid-binding agent, no residual amine is left in the obtained product, the product quality is high, a large amount of amine-containing wastewater is not generated, the steps of triethylamine recovery and subsequent wastewater treatment are reduced, the method is environment-friendly and energy-saving, and the production efficiency is remarkably improved; in addition, the membrane reaction assembly can also improve the ammonia gas mass transfer efficiency, the material reaction rate and the material conversion rate.

The invention relates to a post-treatment method of cellulose acetate butyrate, which comprises the following steps: a) adding an alcohol or ether compound aqueous solution into a to-be-precipitated solution containing cellulose acetate butyrate, and separating out an upper liquid phase to obtain a cellulose acetate butyrate crude solution; b) dissolving the cellulose acetate butyrate crude solution obtained in the step a) in a carboxylic acid functionalized imidazole ionic liquid aqueous solution, and adsorbing by chelating resin; c) dropwise adding the solution adsorbed by the chelating resin into a mixed solution containing carboxylic acid, carboxylic acid functionalized imidazole ionic liquid and water for precipitation; and d) filtering, washing and drying the product obtained by precipitation to obtain a cellulose acetate butyrate product. According to the method, metal ions are removed before precipitation, so that the influence on the turbidity, chromaticity and the like of a product due to wrapping of the metal ions in the precipitation process is avoided; the carboxylic acid functionalized imidazole ionic liquid is not only a good solvent, but also a good precipitation agent, greatly weakens bonding and clustering in the precipitation process, the obtained product is uniform in particle, high in bulk density, small in acid wrapping amount and convenient to wash, material consumption and energy consumption in the post-treatment process are greatly reduced, the generation amount of waste acid and waste water is reduced, and the method is suitable for industrial production. The production efficiency is obviously improved, and industrial production is facilitated.

This invention relates to the field of coatings, and discloses a high-color-ratio, corrosion-resistant yellow coating and its preparation method. The coating comprises the following components by weight: 50-60 parts by weight of waterborne epoxy-modified silicone resin, 25-35 parts by weight of modified bismuth vanadate, 1-2 parts by weight of nanocellulose, 0.3-0.8 parts by weight of dispersant, 0.2-0.5 parts by weight of defoamer, 0.2-0.5 parts by weight of leveling agent, and 2-3 parts by weight of corrosion-inhibiting pigment. The high-color-ratio, corrosion-resistant yellow coating formulation system of this invention is innovative, constructing a ternary synergistic system of waterborne epoxy-modified silicone resin-modified bismuth vanadate-nanocellulose, exhibiting excellent color and corrosion resistance. This coating utilizes microwave-induced flake-shaped bismuth vanadate, which has fewer lattice defects, achieves breakthrough color, and possesses high anti-corrosion performance.

The present invention relates to the technical field of ink, and discloses a method for preparing an environmentally friendly water-soluble engraving gravure ink, which is operated as follows: placing porous staple fibers in water, adding surfactants, stirring after heating to 40-60°C, and obtaining a suspension; adding pigments to the suspension in batches, standing and filtering after sufficient stirring, drying the filtrate, and obtaining porous staple fibers filled with pigments; selecting polyethylene glycol with a melting point of 35-60°C, heating and melting, adding porous staple fibers, slowly stirring and filtering, dispersing the porous staple fibers, cooling at room temperature, and slowly stirring and mixing with anhydrous ink connecting materials to obtain ink slurry; mixing water and an auxiliary agent uniformly to obtain an aqueous diluent; mixing the ink slurry and the aqueous diluent before spraying, and spraying after sufficient grinding. The present invention blocks nano pigments in porous staple fibers, and the pigments in the ink slurry will not diffuse out from the surface micropores of the porous staple fibers, and the porous staple fibers are stably dispersed, thereby avoiding the problem of pigment agglomeration and precipitation.

The invention provides a coating and a preparation method thereof. The coating comprises a bismuth vanadate pigment based on plant polyphenol-protein composite modification, and a preparation method of the bismuth vanadate pigment comprises the following steps: A) mixing plant polyphenol with a protein substance to obtain a composite modifier; b) mixing and stirring the composite modifier and a precursor solution containing bismuth nitrate and ammonium metavanadate to obtain a modified precursor; c, the precursor is calcined, and the bismuth vanadate pigment is obtained.The bismuth vanadate pigment based on plant polyphenol-protein composite modification is applied to a coating through an innovative biomolecule synergistic modification technology, the excellent chromaticity is kept, and meanwhile the acid and alkali resistance is remarkably improved.

The invention provides a stabilizer and application of the stabilizer to preparation of grafted polyester polyol. The stabilizer is obtained by carrying out esterification reaction on polyester polybasic acid and metacrylic acid ester with reaction activity on acid, and the number-average molecular weight of the stabilizer is 1000-3800; the polyester polybasic acid is obtained by reacting small molecule polyhydric alcohol and small molecule polybasic acid, the number-average molecular weight of the polyester polybasic acid is 700-3500, and the preferable acid value is 32-160 mgKOH / g; the metacrylic acid ester with reaction activity on acid contains an epoxy structure, and is preferably glycidyl methacrylate. The stabilizer is low in viscosity and good in operability, no side reaction occurs in the synthesis process, the uniform dispersity of a vinyl monomer can be effectively improved in the grafted polyester polyol preparation process, and the obtained grafted polyester polyol is low in viscosity, good in chromaticity and good in storage stability compared with conventional grafted polyester polyol and can better meet the downstream use requirement.

The present invention relates to the technical field of tetrachloroethylene, and provides an isomeric tetrachloroethylene stabilizer, isomeric tetrachloroethylene and a preparation method thereof. The isomeric tetrachloroethylene stabilizer provided by the present invention includes propylene oxide, 2,6-di-tert-butyl-p-cresol and butylene oxide, and the stabilizer has a good stabilizing effect, and a small amount of addition can achieve the purpose of stabilizing tetrachloroethylene, and is suitable for the preparation of isomeric tetrachloroethylene. The isomeric tetrachloroethylene prepared by the present invention has high purity, good chromaticity, low moisture content, no hydrolysis, and no corrosiveness, is suitable for petrochemical isomerization and catalytic reforming, and plays an important auxiliary catalytic role in the petrochemical aromatics industry. Further, the present invention also improves the purity of the tetrachloroethylene raw material by distillation and deacidification, reduces its moisture content and acidity, and then ensures that the various quality indicators of the obtained isomeric tetrachloroethylene meet the requirements.

This invention relates to the field of phenolic resin technology, specifically to a preparation process for polymerized rosin-modified phenolic resin. First, polymeric rosin with high dimer content is purified by devolatilization, adsorption decolorization, and antisolvent precipitation to obtain directionally polymerized rosin A. Then, an epoxidation reaction is performed to obtain epoxidized product B. Subsequently, cashew phenol, 3-pentadecanylphenol, and oleic acid are grafted in stages to obtain directionally modified polymeric rosin C. Simultaneously, a phenolic prepolymer is prepared. Finally, the prepolymer, modified rosin C, and natural rosin are polycondensed together, and an antioxidant is added to obtain the finished product. This process, through directional control of raw materials and staged reaction control, enables the resin to possess high softening point, light color stability, high n-heptane tolerance, and excellent processing safety, significantly improving batch consistency and making it suitable for high-performance ink binders.