166 results about "Lauric acid" patented technology

A method for preparing a silver powder, comprising: subjecting a first silver salt, a first dispersing agent and a first reducing agent to a first treatment, so as to obtain silver crystal nucleuses; and subjecting the silver crystal nucleus, a second silver salt, a second dispersing agent, a second reducing agent and a modifying agent to a second treatment, so as to obtain a silver powder, wherein the modifying agent comprises lauric acid, decanoic acid and undecanoic acid. The silver powder prepared by means of the method has good dispersity and wettability, a narrow particle size distribution, a small particle size and high sintering activity, and is not prone to agglomeration in a conductive silver paste, thereby enabling the conductive silver paste to have a high solid content and endowing the conductive silver paste with good conductivity. The present invention further relates to a silver powder, a conductive silver paste, an electronic device and electric equipment.

The invention relates to the technical field of high polymer materials, and particularly discloses a flame-retardant heat-conducting silica gel insulating coating and a preparation method thereof. The invention discloses a flame-retardant heat-conducting silica gel insulating coating. Comprising the following components: polydimethylsiloxane, aluminum hydroxide, modified nano aluminum oxide, a phosphorus-nitrogen flame retardant, silicon dioxide, methyltris (methylethylketoxime) silane, vinyltris (methylethylketoxime) silane, dibutyltin dilaurate, a diluent, amino propyl triethoxy silane, propyl trimethoxy silane and ethyl aminopropyl trimethoxy silane. And the polydimethylsiloxane is formed by compounding polydimethylsiloxane with the viscosity of 1,500 cp and polydimethylsiloxane with the viscosity of 20,000 cp. According to the invention, by finely blending the proportion of various functional components, especially the optimal combination of polydimethylsiloxane, modified nano aluminum oxide, the flame retardant and the filler, the flame retardance and thermal conductivity of the coating are effectively improved, and meanwhile, good insulativity and mechanical properties are ensured.

The present invention relates to a confectionery product comprising 20% to 70% by weight of a sweetener; and 20% to 70% by weight of a plant-based fat phase; wherein the plant-based fat phase has from 1.0% to 10.0% by weight of total lauric acid (C12: 0) and myristic acid (C14: 0); and from 20.0% to 70.0% by weight of total palmitic acid (C16: 0) and stearic acid (C18: 0); the percentage of acid is an acid bound as an acyl group in the glyceride of the plant-based fat phase and based on the total weight of C8 to C24 fatty acids; total palmitic acid (C16: 0) and stearic acid (C18: 0) in the second position of the triglycerides, which accounts for at least 1.0% of the percentage of total palmitic acid (C16: 0) and stearic acid (C18: 0) in the triglycerides of the plant-based fat phase (Sn-2 total palmitic acid and stearic acid%); up to 10.0% by weight of a total CN32 triglyceride, CN34 triglyceride, CN36 triglyceride, CN38 triglyceride, and CN40 triglyceride; the plant-based fat phase is based on total triglycerides present in the plant-based fat phase. The invention also relates to a method for preparing said confectionery product.

The application provides a low pour point nonionic surfactant and a preparation method thereof, which is composed of the following raw materials in parts by weight: C13 isomeric fatty alcohol polyoxyethylene ether 18-30 parts, reverse EO / PO block copolymer 10-20 parts, sodium diisooctyl sulfosuccinate 1-7 parts, sodium dodecyl sulfonate 1-5 parts, glyceryl laurate 1-5 parts, isopropyl alcohol 5-10 parts, and propylene glycol 1-5 parts; the formula is constructed based on a nonionic surfactant as a main body, ion surfactants and additives are introduced, and the system is optimized, so that a low pour point nonionic surfactant with excellent adsorption capacity and decontamination capacity is obtained.

The present application relates to the technical field of energy storage equipment protection, and particularly relates to a phase change protective coating for an energy storage container and a preparation method thereof, which comprises, by total mass 100 parts, epoxy modified polyurethane 40-50 parts, lauric acid 10-15 parts, paraffin 5-8 parts, GPTMS modified boron nitride 3-6 parts, VTES modified nano-silicon dioxide 2-5 parts, leveling agent 0.5-0.7 parts, defoaming agent 0.3-0.5 parts, curing agent 7-9 parts, and diluent 10.8-17 parts; the GPTMS modified boron nitride is obtained by modifying 50 nm boron nitride with GPTMS and has a modification degree of 85%, and the VTES modified nano-silicon dioxide is obtained by modifying 30 nm nano-silicon dioxide with VTES and has a modification degree of 80%. The present application uses specific composite phase change materials and cooperates with a pretreatment process, so that the phase change components are uniformly dispersed, the problems of leakage and agglomeration are avoided, the stable phase change function of the coating is ensured, the environmental temperature fluctuation can be effectively smoothed, and stable operating temperature conditions are provided for the energy storage equipment.

The invention relates to a UV-LED blue paint for protecting a power battery shell, a preparation method and a coating applied by the UV-LED blue paint, and belongs to the technical field of paints. The UV-LED blue coating is prepared from the following components in parts by weight: 5 to 15 parts of a polybutadiene modified acrylate oligomer, 20 to 40 parts of a bisphenol A epoxy acrylate oligomer, 35 to 50 parts of a monofunctional reactive diluent, 5 to 15 parts of a bifunctional reactive diluent, 3 to 10 parts of a multifunctional reactive diluent, 4 to 7 parts of a photoinitiator, 0.6 to 2.2 parts of an auxiliary agent and 1 to 3 parts of blue color paste, the monofunctional reactive diluent is prepared from the following components in parts by weight: 30 to 40 parts of isobornyl-containing acrylate and 5 to 10 parts of lauric acid acrylate. A blue coating formed by the blue coating has good adhesive force, excellent electrolyte resistance and boiling resistance and low viscosity, so that the blue coating can be subjected to mass production through spraying, the curing speed is high, and the production efficiency is improved.

The embodiment of the application discloses a preparation method of a target temperature-sensitive drug-loaded composite microsphere based on attapulgite, which comprises the following steps: carrying out purification treatment on original attapulgite based on an aqueous solution of inorganic strong acid to obtain purified attapulgite; mixing the purified attapulgite, gypenoside, inulin and folic acid to obtain a mixture, and carrying out mixing treatment on the mixture based on deionized water to obtain a composite microsphere suspension; conveying the composite microsphere suspension into a spray dryer to carry out granulation to obtain primary drug-loaded composite microspheres; adopting a melt impregnation method to coat lauric acid on the surface and pores of the primary drug-loaded composite microspheres, and cooling the primary drug-loaded composite microspheres coated with lauric acid to room temperature to obtain the target temperature-sensitive drug-loaded composite microspheres. The application can not only realize temperature change-based on-off type control release of drugs, significantly improve the targeting and treatment accuracy of drugs, but also reduce the systemic toxic side effects of chemotherapy from the source, and realize efficient and low-toxicity synergistic treatment.

The application discloses an environment-friendly fluorine-free super-hydrophobic coating material and a preparation method thereof, and belongs to the technical field of super-hydrophobic coating materials. The preparation method comprises the following steps: mixing hyperbranched polyurethane, ethyl acetate and propylene glycol methyl ether acetate for 10-20 min, then adding polydimethylsiloxane and octadecyl isocyanate to carry out mixing reaction for 60-80 min, then adding multistage microspheres to carry out ultrasonic treatment for 15-30 min, and then adding Isopar G, isophorone diisocyanate, silane coupling agent KH-560, dibutyl tin dilaurate and triethylenediamine to carry out stirring and dispersion for 30-50 min, so as to obtain the environment-friendly fluorine-free super-hydrophobic coating material. The environment-friendly fluorine-free super-hydrophobic coating material prepared by the application has good super-hydrophobicity, self-repairing function and wear resistance.

The object of the present invention is to provide a gummy candy that has both a resilient texture and a smooth, melt-in-your-mouth quality like chocolate, and that has a good chocolate-like flavor. [Solution] A gummy candy containing 2.0% by mass or more of a gelling agent, cocoa content, and oil and fat, wherein the ratio of the solid fat content of the oil and fat at 20°C to the solid fat content of the oil and fat at 35°C is 3 or more, and preferably, the oil and fat contains random transesterified oil and fat (A): the content of lauric acid residues in the constituent fatty acid residues is 5 to 50% by mass.

The invention provides new application of lauric acid, and researches on the inhibiting effect of lauric acid on a cardiac voltage gated sodium channel Nav1.5 and the action mode of lauric acid in electrophysiological conduction prove that natural polysaturated fatty acid lauric acid is a potential Nav1.5 sodium channel inhibitor for the first time. Electrophysiological characterization shows that lauric acid is the most effective monomer in natural polysaturated fatty acid screened for inhibiting Nav1.5, and the IC50 value is 27.40 + / -12.78 mu M.

This invention relates to the field of extraction technology and proposes a green method for extracting glycyrrhizic acid, comprising the following steps: S1, mixing licorice with a first solvent, extracting, separating, and obtaining a solid pretreated material; S2, mixing the solid pretreated material with a second solvent, extracting, separating, and obtaining an extract; S3, concentrating the extract, adding it to an aqueous two-phase extraction system, stirring, allowing it to stand and separate phases, obtaining an upper phase solution; S4, adding a third solvent to the upper phase solution, adjusting the pH to alkaline, separating phases, obtaining an aqueous phase solution, adjusting the pH of the aqueous phase solution to acidic, separating, obtaining a solid, drying the solid, and obtaining glycyrrhizic acid; the aqueous two-phase extraction agent in the system includes polyoxyethylene laurate solution and dipotassium hydrogen citrate solution. This technical solution solves the problem of insufficient yield and purity of glycyrrhizic acid in the extraction of glycyrrhizic acid from licorice in related technologies.

The invention discloses a process for directly purifying quartz sand through gravity-flotation combined separation, and belongs to the technical field of deep processing of non-metallic ores. An existing acid leaching-roasting method is large in pollution and high in cost, and impurities such as Fe, Ti and Al are difficult to remove at the same time through single reselection or flotation. The method comprises the following steps: firstly, crushing raw ore, performing rod milling, and classifying by a cyclone until d90 is equal to 0.15 mm; then combined reselection is conducted through a two-section table concentrator and a centrifugal machine, pre-enriched concentrate with SiO2 larger than or equal to 99.2% is obtained, and the heavy mineral removal rate is larger than or equal to 65%; then, under different pH conditions, lauric acid, a neutral oil emulsified collecting agent and a mixed amine collecting agent are used for collecting mica and feldspar in a segmented mode, so that the grade of SiO2 is increased to be larger than or equal to 99.9%, and Al2O3 and Fe2O3 are reduced to be larger than or equal to 85% and larger than or equal to 70% relative to gravity concentrate; finally, deionized water washing and vacuum drying are conducted, and the high-purity quartz sand is obtained. The whole process is free of hydrofluoric acid and high-temperature roasting, the recovery rate of SiO2 with the size fraction of-0.6 + 0.1 mm is increased to 93-95%, product indexes are stable, equipment is conventional, and industrial popularization is easy.

The invention provides antimicrobial composition comprising (a) a first active ingredient, wherein in the first active ingredient is selected from the group consisting of petroleum jelly, EpiCeram® emulsion, and / or glycerin, and (b) a second active ingredient selected from the group consisting of 1-octanoyl-rac-glycerol, 1-decanoyl-rac-glycerol, glycerol monolaurate (GML), rac-glycerol 1-myrstate, glycerol monocaprate, glycerol monocaprylate, glycerol monomyristate, or reutericyclin, wherein the second active ingredient is present at a concentration of 10 μg / ml to 100 mg / ml in the composition. The compositions are useful as antimicrobial agents.

The present invention relates to a candle wax composition comprising one or more lauric fats and a plant-based oil and / or a plant-based wax. Furthermore, the present invention relates to a method for producing a candle wax composition, and the use of such a candle wax composition for reducing blooming formation and improving adhesion of a candle wax composition to glass.

The invention relates to the technical field of road engineering construction, and particularly discloses a composite pavement phase change material as well as a preparation method and application thereof. The composite pavement phase-change material comprises a cellulose aerogel base material, a phase-change core material infiltrating pores of the base material and an outer coating layer material, wherein the phase change core material comprises expanded graphite, lauric acid / myristic acid eutectic and polyethylene glycol; and the outer coating layer is made of a mixture of petroleum resin and maleic anhydride modified asphalt. The composite pavement phase change material can play a remarkable temperature control role in an asphalt pavement, improves the high and low temperature performance of an asphalt pavement mixture, can effectively prolong the service life of the pavement, and effectively makes up for the defects in the prior art.

The invention discloses a bio-enzyme preparation for catalytic degradation of grease as well as a preparation method and application thereof, and belongs to the technical field of bio-enzymes. The gel carrier is formed by cross-linking a chitosan-lauric acid-dopamine conjugate and Fe < 3 + > ions through covalent coupling; the bonding adaptive compound enzyme is a mixed enzyme of which the surface is grafted with a catechol group through an N-hydroxysuccinimide-dopamine ester modifier; the technical bottleneck that efficient catalysis, firm fixation, convenient recovery and long-acting stability of an industrial cleaning enzyme preparation are difficult to consider at the same time is solved, and the prepared biological enzyme preparation has the high-activity recovery rate, excellent recycling stability, intelligent separation and recovery characteristics and efficient broad-spectrum cleaning capacity; and the method has remarkable industrial application advantages and market competitiveness.

The application discloses a temperature-sensitive phase change one-way water guide paste dry base material and a preparation method thereof, and relates to the technical fields of skin care patches and flexible drug-loaded base materials. The method comprises the following steps: step 1, uniformly spraying a polylactic acid solution on one side of a non-woven fabric base material to obtain a hydrophobic closed layer after volatilizing the solvent; step 2, preparing a mixture containing lauric acid, myristic acid and Tween 20, heating and melting the mixture into a transparent liquid to obtain an oil phase of a temperature-sensitive layer, weighing a set amount of an efficacy component, stirring the efficacy component in a beaker containing a high-molecular-weight hydrogel solution to obtain an aqueous phase of the temperature-sensitive layer; step 3, stirring the oil phase of the temperature-sensitive layer into the aqueous phase of the temperature-sensitive layer until uniform to prepare a temperature-sensitive phase change microemulsion; step 4, quantitatively coating the temperature-sensitive phase change microemulsion on the other side of the non-woven fabric base material to obtain a hydrophilic layer of the temperature-sensitive layer; and step 5, low-temperature dehydration and drying to obtain the temperature-sensitive phase change one-way water guide paste dry base material. The binary eutectic system of lauric acid and myristic acid is used to keep the base material in a physical closed state at room temperature, when the microenvironment of human skin is heated to about 35 DEG C-37 DEG C, the phase change lipid is melted to realize the temperature-controlled intelligent release of the efficacy component; meanwhile, the one-way water guide structure is constructed in combination with the hydrophobic layer, the transdermal absorption effect is improved, and the dry entity is beneficial to non-preserved packaging, environmental protection and weight reduction.

The application discloses a preparation method of an interface treatment agent for a steel structure, and comprises the following steps: adding graphene powder and boron nitride powder into a mixed solution composed of ethanol and water, performing ultrasonic treatment, then centrifuging the mixed solution, collecting supernatant, drying the supernatant, and obtaining graphene nanosheet / boron nitride nanosheet composite material; mixing and stirring polydimethylsiloxane, dibutyltin dilaurate and the graphene nanosheet / boron nitride nanosheet composite material, adding polyacrylate emulsion, and performing stirring treatment to obtain modified polyacrylate emulsion; mixing cement, redispersible latex powder, river sand, defoaming agent, triethanolamine and hydroxyethyl methyl cellulose as dry material components; and taking the modified polyacrylate emulsion as a liquid component. The interface treatment agent can not only effectively improve the interface performance between the steel structure and mortar, but also improve the corrosion resistance and weather resistance of the surface of the steel structure.

This invention provides a pesticide synergist, its preparation method, and its application, belonging to the field of pesticide adjuvants. The pesticide synergist provided by this invention comprises, by weight percentage, 3.5-4.5% lauric acid, 5.5-6.5% diacetone alcohol, 10-15% emulsifier, and 74-80% solubilizer. The pesticide synergist provided by this invention is environmentally friendly, can improve the contact and adhesion between the active ingredient of the pesticide and its application site, improve the efficiency of pesticide use, and can still maintain high efficacy while reducing the dosage of herbicides, insecticides, and fungicides. Ultimately, it reduces environmental pollution, increases crop yield, lowers costs, and increases profits.

The invention discloses a method for improving dispersity and thermal stability of insoluble sulfur, and belongs to the technical field of sulfur processing and production. According to the technical scheme, the preparation method comprises the following steps: 1) mixing naphthenic oil, a dispersant, a stabilizer and a compatibilizer to obtain a mixed material; the dispersing agent is one or more of dithiobenzothiazole, zinc stearate, dioctyl phthalate, polyethylene glycol monolaurate, oleyl alcohol and fatty alcohol-polyoxyethylene ether; the dispersing agent is one or more of dithiobenzothiazole, zinc stearate, dioctyl phthalate, polyethylene glycol monolaurate, oleyl alcohol and fatty alcohol-polyoxyethylene ether; the compatibilizer is one or more of ethylene propylene diene monomer, EVA (Ethylene Vinyl Acetate) resin and liquid butadiene rubber; and 2) mixing the mixed material with an oil-free insoluble sulfur semi-finished product, and carrying out oil filling treatment to obtain the insoluble sulfur. The insoluble sulfur prepared by the method provided by the invention not only has good dispersibility and thermal stability, but also is simple and feasible in process flow, and is beneficial to improving the production efficiency.

Described herein are certain trifarotene fatty acid esters and topical, topical skin care compositions containing one or more such compounds. In some embodiments, after hydrolysis in the skin, the shorter chain trifarotene fatty acid esters release short chain fatty acids such as octanoic acid and lauric acid, known to contribute to penetration enhancement in topical skin delivery. Also described are methods of topically applying the topical compositions to the skin of a subject to inhibit or reduce light aging or acne signs.

The invention provides composite hydrogel, photo-thermal response drug release composite hydrogel as well as a preparation method and application of the photo-thermal response drug release composite hydrogel, and belongs to the technical field of biomedical materials. The hydrogel is constructed by taking methylacryloyl gelatin as a matrix and combining lauric acid microspheres carrying an osteogenesis promoting drug baicalin, a reduced graphene oxide photothermal agent and a photoinitiator LAP. Under the irradiation of near-infrared light, the hydrogel can realize local mild temperature rise, induce the lauric acid microspheres to generate solid-liquid phase change, release the entrapped osteogenesis promoting drug as required, realize the synergistic effect of photothermal therapy and controlled release of the drug, and have a good osteogenesis repair effect. The hydrogel has good mechanical properties, biocompatibility and degradability, can be used for local treatment of bone defect parts, and effectively promotes regeneration and repair of oral and maxillofacial bone tissues. The invention provides a novel controllable and efficient treatment thought for bone tissue engineering and regenerative medicine.

The invention discloses an oleophylic and hydrophobic sponge material as well as preparation and application thereof. The material comprises sponge and a carbon-containing hydrophobic film layer coated on a sponge framework, and lauric acid is coated on the carbon-containing hydrophobic film layer. The preparation method comprises the following steps: in an inert atmosphere, heating and carbonizing dried banana peel powder, carrying out alkali treatment on a product, heating and calcining, and carrying out acid pickling to obtain biomass derived carbon; the preparation method comprises the following steps: dispersing biomass derived carbon in a PDMS solution to obtain a carbon powder suspension, immersing a sponge in the carbon powder suspension, taking out the sponge after immersion, drying, immersing the sponge in liquid lauric acid, taking out the sponge after vacuum immersion, removing redundant lauric acid, uniformly smearing the carbon powder suspension on the outer surface of a sponge intermediate, and drying and solidifying to obtain the sponge. The material can be applied to adsorption and recovery of high-viscosity crude oil. In the oil-water separation process, the prepared composite material shows efficient adsorption capacity and rapid separation effect on high-viscosity crude oil, and has remarkable environmental and economic benefits.

The invention discloses a preparation method and application of exosomes sourced from lactobacillus reuteri and bacillus subtilis for promoting cat hair degradation, the exosomes are respectively sourced from lactobacillus reuteri and bacillus subtilis cultured under a specific fatty acid condition, lauric acid (1-8g / L) is added into a lactobacillus reuteri culture medium, palmitic acid (1-8 g / L) is added into a bacillus subtilis culture medium, and secretion of exosomes is promoted by adjusting the metabolic pathway of thalli. The exosome obtained through extraction and mixing has biological activity of promoting degradation of hair protein in cats and accelerating decomposition of hair balls, and experimental results show that the exosome can significantly reduce the formation rate of the hair balls of the cats and the content of hair in excrement and improve the health state. The invention provides a novel microbial source functional component for developing a safe, efficient and drug-residue-free pet hair ball management product, and has a good application prospect and industrialization value.

The application provides a bacteriostatic and lubricating coconut oil-containing composition and a preparation method thereof, which uses virgin coconut oil, coconut oil extract, extract of Zanthoxylum bungeanum Maxim and extract of Ligustrum lucidum Ait as raw materials, the virgin coconut oil is extracted by a supercritical carbon dioxide extraction method, has high extraction rate and high lauric acid content, the virgin coconut oil is extracted, the bacteriostatic effect of the composition can be improved, and meanwhile, the particle size of the finished product can be reduced in the processing process to form a finished product with high stability. In the application, the effective components in Zanthoxylum bungeanum Maxim and Ligustrum lucidum Ait are extracted, which is beneficial to improving the efficacy of the finished product, the extract of Zanthoxylum bungeanum Maxim and the extract of Ligustrum lucidum Ait also have better water absorption and emulsification performance as emulsifiers, and the stability of the finished product is further improved.

The application discloses a fluorine-free flame-retardant two-phase cooling liquid and a preparation method and application thereof, the cooling liquid comprises the following components in parts by mass: a base phase change agent 75-85 parts, a phase change regulator 3-15 parts, a flame-retardant stabilizer 4-8 parts and an interface modifier 2-4 parts; wherein the base phase change agent is a binary eutectic mixture formed by decanoic acid and lauric acid, the phase change regulator is a compound of isoamyl alcohol and propylene glycol, and the flame-retardant stabilizer is a compound of triphenyl phosphate and magnesium hydroxide. The cooling liquid is completely fluorine-free, and through the synergistic effect of the components, the cooling liquid has the comprehensive excellent performances of adjustable phase change temperature, high phase change latent heat, high flame-retardant grade, long-term operation stability, good material compatibility and the like. The cooling liquid is particularly suitable for an immersed liquid cooling system integrated with an intelligent control algorithm, and can be widely applied to efficient and safe heat dissipation of extreme heat load scenes such as super-high-power AI servers, energy storage batteries and high-power semiconductors.

The invention relates to a bio-based fabric conversion process, which belongs to the technical field of fabrics, and comprises the following steps: mixing glycerol, itaconic acid and 4-toluene sulfonic acid according to a mass ratio of (9.0-10.0): (12.5-13.5): (0.01-0.02), introducing nitrogen for protection, heating to 140-160 DEG C, carrying out melt polycondensation reaction for 2-4 hours, vacuumizing, carrying out vacuum dehydration treatment for 1-3 hours, and cooling to obtain hydroxyl-terminated hyperbranched polyester; the hydroxyl-terminated hyperbranched polyester is dissolved in anhydrous acetone, isophorone diisocyanate and dibutyltin dilaurate are added, the mass ratio of the isophorone diisocyanate to the hydroxyl-terminated hyperbranched polyester is (1.0-1.2): 1, the mixture is stirred at the constant temperature of 50-60 DEG C for a reaction for 1.5-2.5 h, an isocyanate-terminated prepolymer is prepared, and the isocyanate-terminated hyperbranched polyester-dibutyltin dilaurate copolymer is obtained. The formed flexible cross-linked network can effectively disperse stress concentration when the fibers are subjected to external force, and accumulation of stress on a single cross-linked point is avoided.