478 results about "Phenol Compound" patented technology

The invention relates to the technical field of well cementation materials and provides well cementation cement stone based on water-based benzoxazine resin as well as a preparation method and application of the well cementation cement stone. The well cementation cement stone is prepared from the following components in parts by mass: 400-600 parts of quartz sand, 4-6 parts of a retarder, 4-6 parts of a fluid loss agent, 1-2 parts of a suspension stabilizer, 1-2 parts of a dispersant, 4-6 parts of a high-temperature-resistant water-based benzoxazine monomer and 40-50 parts of water, and the high-temperature-resistant water-based benzoxazine monomer is prepared from a phenolic compound, primary amine and formaldehyde through Mannich reaction. Resin formed by the prepared benzoxazine monomer has improved mechanical properties at a high temperature of 150-200 DEG C, the mechanical properties and high temperature resistance of well cementation cement at a high temperature are significantly improved by filling pores of set cement and optimizing cement components, the benzoxazine monomer in a cement slurry system does not affect the fluidity of cement slurry, and the well cementation cement has a good application prospect. Meanwhile, the high-temperature strength of set cement can be remarkably enhanced, and the cement is suitable for well cementation of high-temperature deep wells.

The invention discloses a preparation method of a double embedding emulsion preparation / emulsion based on octenyl succinic acid cyclodextrin ester, and relates to an inclusion compound based on modified cyclodextrin and a stable Pickering emulsion system thereof. According to the method, the uniformity of the cyclodextrin modification substitution degree is improved through ultrasonic assistance, the embedding rate and the embedding stability of hydrophobic active ingredients can be improved, meanwhile, the Pickering emulsion is stabilized, preparation of the double-embedded emulsion preparation is achieved, and the stability and the packaging efficiency of an emulsion preparation packaging delivery system can be effectively improved through the method. The method comprises the following steps: 1, preparing octenyl succinic acid cyclodextrin ester; 2, preparing an OSA-beta-CD / phenolic compound clathrate compound; and 3, preparing the dual-embedding emulsion preparation / emulsion. The invention provides a preparation method of a double-embedding emulsion preparation / emulsion based on octenyl succinic acid cyclodextrin ester. The double-embedding emulsion preparation / emulsion can be applied to a double-embedding food functional component delivery system.

This invention belongs to the field of high-value utilization technology of biomass resources, and discloses a method for catalyzing the depolymerization of lignin into phenolic compounds using a RuNiZn / Nb2O5 catalyst. The method includes: uniformly mixing the RuNiZn / Nb2O5 catalyst, lignin-containing biomass feedstock, and water; stirring under hydrogen atmosphere to carry out the depolymerization reaction; after the reaction, cooling to room temperature and performing solid-liquid separation; evaporating the solvent to obtain the hydrogenated depolymerization product containing monophenols. In this invention, the RuNiZn / Nb2O5 catalyst employs a technique of replacing precious metals with various non-precious metals, which improves the catalyst's reactivity and reduces the amount of precious metals used. This increases the yield of lignin depolymerization products, provides milder depolymerization reaction conditions, and ultimately significantly reduces the catalyst preparation cost and the energy cost of the lignin depolymerization process.

The invention relates to the technical field of lithium battery negative electrode materials, in particular to a preparation method and application of a phenolic resin-based spherical porous carbon negative electrode material. The preparation method comprises the following steps: adding phenol, at least one natural polyphenol compound, formaldehyde, at least one biomass-based aromatic aldehyde compound, ammonia water and deionized water into a reaction container, keeping stirring, raising the temperature, adding a dispersing agent, continuously raising the temperature after a constant-temperature reaction, and carrying out a constant-temperature reaction to obtain the phenolic resin. Then adding a curing agent, raising the temperature, adjusting the pH value, and carrying out a constant-temperature curing reaction to obtain a phenolic resin-based precursor; and finally, carrying out high-temperature carbonization to obtain the phenolic resin-based spherical porous carbon negative electrode material for the lithium battery, which has high specific capacity and low expansion rate.

The invention provides metal-hydrogen modified porous carbon and a preparation method thereof, a silicon-carbon composite material and a preparation method thereof, and a battery, and the preparation method of the metal-hydrogen modified porous carbon comprises the following steps: mixing an aldehyde compound, a phenolic compound, a metal source and a catalyst, and carrying out heating treatment to prepare modified phenolic resin; carrying out carbonization treatment on the modified phenolic resin to prepare metal-doped porous carbon; mixing the metal-doped porous carbon with a metal hydride reducing agent, and performing reduction treatment to prepare metal-hydrogen modified porous carbon; wherein the mass ratio of metal elements to phenolic compounds in the metal source is (2-5): 100. A proper amount of metal-hydrogen bonds are introduced into the inner surface of a porous carbon pore structure; when the porous carbon is subsequently subjected to silicon deposition, low-temperature, uniform and confined deposition of nano silicon in a porous carbon matrix is facilitated, and the silicon-carbon composite material with low expansion rate and excellent electrochemical performance is prepared.

The present application relates to a kind of bismaleimide resin compositions and the semi-cured sheet and laminated plate prepared therefrom, comprising components: bismaleimide compound, allyl phenol compound and oxetane compound, the equivalent ratio range of double bond in the bismaleimide compound and double bond in the allyl phenol compound is 3~0.3, the oxetane compound accounts for 0.5~5% of the overall resin, the preparation process of semi-cured sheet and laminated plate includes the following preparation steps: step S1, the glue liquid prepared by bismaleimide resin composition is infiltrated into glass fiber cloth, and then baked and dried to obtain semi-cured sheet;Step S2, the surface of semi-cured sheet is covered with metal foil, and high-temperature pressing is formed, the advantage of the present application is that the glue liquid of resin composition, semi-cured sheet has good storage property, and the laminated plate prepared therefrom has excellent heat resistance, copper foil bonding force and moisture resistance.

The invention relates to the field of automobile oil-water transmission systems, in particular to an anti-aging and anti-oxidation oil-water transmission pipe for an automobile and a preparation method of the anti-aging and anti-oxidation oil-water transmission pipe, and aims to solve the problems that an existing oil-water transmission pipe is poor in anti-aging and anti-oxidation performance and anti-corrosion performance, so that the oil-water transmission pipe is often aged, oxidized and corroded; and the performance of the oil-water transmission pipe is reduced. According to the oil-water transmission pipe, the multi-hindered phenol compound and the multi-fluorine compound are used as additives, so that the aging oxidation resistance and the oil corrosion resistance of the oil-water transmission pipe are remarkably enhanced, the aging and corrosion of materials can be effectively prevented, and the service life of the oil-water transmission pipe is greatly prolonged; the maintenance cost and the replacement frequency caused by aging and corrosion of the oil-water transmission pipe are reduced, so that the long-term stable operation of the oil-water transmission system is ensured.

The present invention relates to a process for the preparation of polyaminocarboxylic acids, in particular phenolic aryl- or alkyldiaminepolycarboxylic acids, preferably a compound of formula (I): wherein X is selected from the group consisting of: H, COOH, COO−Y+, OH, linear or branched C1-C5 alkyl, CH2OH, SO3H, SO3−Y+, wherein: —Y+ is independently selected from the group consisting of: Li+, Na+, K+, and NH4+; and wherein A is selected from: −A (CH2)n linear aliphatic system, wherein n=2, 3 or 4, preferably 2 or 3; and—an aromatic system of formula (II): wherein R1, R2 are independently selected from the group consisting of H, OH, and linear or branched C1-C5 alkyl; said process comprising the step of reacting, a phenol compound, glyoxylic acid and an aryl- or alkyldiamine in the presence of an iron source to obtain a reaction mixture comprising the compound of

The invention is directed to a process for the preparation of an aromatic acid or a phenolic compound, said process comprising reacting a dienophile and a furanic compound comprising an acetal moiety in a Diels-Alders reaction to obtain an aromatic compound comprising said acetal moiety, followed by hydrolysis and oxidation of said acetal moiety into a hydroxide or carboxylate moiety to form the aromatic acid or phenolic compound, wherein said dienophile is selected from the group consisting of alkylenes, acetylenes, acrylates, maleates, fumarates, maleimides, propiolates, acetylene dicarboxylates, and benzynes and wherein said acetal moiety is bound directly to the 2-position of the furanic compound.

The invention provides a novel antibacterial and anti-inflammatory functional additive, a preparation method and application, and belongs to the technical field of biological materials, the additive is organic-inorganic hybrid nanoparticles, and is formed by self-assembly of metal ions, natural polyphenol compounds and quaternary ammonium salt compounds. According to the antibacterial / anti-inflammatory functional additive disclosed by the embodiment of the invention, the antibacterial / anti-inflammatory functional additive has the effects of high biocompatibility, rapid active sterilization, long-acting passive bacteriostasis and inflammation immunity regulation and control.

This invention discloses a sol-gel preparation method for mesoporous carbon membranes, as well as the mesoporous carbon membranes and their applications. The preparation method includes: (1) dissolving phenolic compounds in a solvent and adding a template agent; (2) adding aldehyde compounds and amine compounds to obtain a mixture; (3) subjecting the mixture to a hydrothermal reaction to obtain an organic membrane precursor; and (4) carbonizing the organic membrane precursor at high temperature; wherein the solid content of the mixture is 20-30 wt%. The method of this invention significantly shortens the production cycle, has high preparation efficiency and success rate, can be molded to any size, and the obtained porous structure can withstand high-temperature treatment without collapsing. The obtained mesoporous carbon membrane can be applied to gas separation or liquid separation.

The invention discloses efficient flame-retardant smoke-suppressing polyurethane and a preparation method thereof.The efficient flame-retardant smoke-suppressing polyurethane comprises a material A and a material B. The material A is prepared from liquid polyether macromolecular dihydric alcohol, liquid polyether macromolecular trihydric alcohol, polyether carbonate polyol, a chain extender, a catalyst, a hydroxylation flame-retardant smoke-suppressing agent and a surface functional ceramic forming auxiliary; the material B is prepared from castor oil and diisocyanate; wherein the hydroxylated flame-retardant smoke suppressant is formed by carrying out ion exchange reaction on ammonium polyphosphate, an ammonium molybdate smoke suppressant and an alcohol amine modifier, and the surface functional ceramic forming additive is obtained by carrying out self-polymerization on a polyphenol compound on the surface of the inorganic ceramic forming additive to form a polymer coating. According to the efficient flame-retardant smoke-suppression polyurethane provided by the invention, organic solvents such as DMF are not used in the preparation process, organic solvent pollution is eliminated from the source, the limit oxygen index of the prepared polyurethane is greater than 28%, and the prepared polyurethane passes a V-0 grade through a UL-94 vertical combustion test, is low in maximum smoke density and has excellent comprehensive properties such as mechanical properties.

The present application relates to a kind of nanodroplet system based on interface crosslinking curcumin and its preparation method, by the crosslinking complexation between gallic acid ester, metal ion, curcumin to construct nanodroplet system.Gallic acid ester is polyphenol compound, contains a large number of phenolic hydroxyl in structure, has strong chelating metal ability, can be complexed with most of trivalent metal ions and divalent excessive metal ions, called metal phenolic network;Metal ions such as copper, iron and other metal ions form complex by electrostatic interaction with the beta diketone group in the structure of curcumin.Therefore, the nanodroplet system constructed by the present application can maintain the chemical stability and light stability of curcumin, and has wide prospect for improving the current food field curcumin low solubility, poor stability and other problems.

The invention discloses a method for preparing monophenol compounds from lignin. The method comprises the following steps: mixing a raw material lignin with a solvent, and carrying out a one-step hydrogenation reaction in a hydrogen atmosphere under the action of a nickel-molybdenum-based catalyst to prepare the monophenol compound, the nickel-molybdenum-based catalyst comprises metal nickel and nickel oxide, molybdenum oxide and silicon oxide. The method provided by the invention has the characteristics of low production cost, simple separation, high monophenol compound yield and the like.

The invention relates to the technical field of plant extraction, and provides a plurality of phenolic compounds in senecio scandens, and a preparation method and application thereof. The method comprises the following steps: crushing senecio scandens, adding ethyl acetate, and performing ultrasonic heating, stirring and extracting to obtain an extracting solution; carrying out rotary evaporation and vacuum concentration on the extracting solution to obtain a crude extract; dissolving the crude extract by using absolute ethyl alcohol through ultrasonic heating, carrying out gradient elution through a macroporous adsorption resin chromatographic column, and collecting an ethanol water eluent; and concentrating the ethanol water eluent under reduced pressure, stirring with a reverse-phase filler, loading with a dry method, packing with a wet method, and sequentially performing isocratic elution with a reverse-phase chromatographic column and purification with a gel column. The dissolution efficiency of phenolic compounds in senecio scandens is improved through ultrasonic and mild heating, the problems that components are degraded due to high temperature in traditional reflux extraction and time and solvent are consumed in dipping extraction are solved, and target component residues are reduced; and then through gradient elution of a chromatographic separation column, isocratic elution of a reversed-phase chromatographic column and purification of a gel column, the problem that phenols are similar in structure and easy to co-elute is accurately solved.

Provided in the present invention are an antimicrobial whitening composition, a white synthetic leather substrate and a preparation method therefor, and an antimicrobial synthetic leather. The antimicrobial whitening composition comprises a cationic antimicrobial agent, an antimicrobial organic substance and a solvent, wherein the cationic antimicrobial agent comprises at least one of a polymeric quaternary ammonium compound, polyethyleneimine, chitosan, a biguanide compound and a polymeric biguanide; and the antimicrobial organic substance comprises at least one of a terpene compound and a derivative thereof, a phenolic compound, an essential oil, an antifungal agent, a preservative and a disinfectant. The man-made leather prepared by means of the antimicrobial whitening composition of the present invention has good performance in terms of both long-lasting antimicrobial properties and maintaining a high whiteness.

The application discloses a novel multifunctional resistant starch rich in active small-molecule ternary complex, a one-step induction synchronous preparation process and application thereof. By introducing lipids with a certain structure, phenolic compounds without long alkyl chains and starch form inclusion complexes with V-shaped ordered structures. By adjusting the addition sequence of lipids and phenolic compounds in the preparation process and optimizing the process parameters, multifunctional resistant starch with high phenolic loading rate and strong antioxidant activity is prepared by one-step induction. The application breaks through the technical bottleneck that phenolic compounds without long alkyl chains are difficult to form V-shaped complexes with starch, significantly improves the complexing efficiency of starch and phenolic compounds without long alkyl chain structure, and improves the content of active small-molecule phenols in the complex. Compared with the prior art, the prepared complex has stronger DPPH free radical scavenging effect, shows better digestion resistance and antioxidant effect, and can be used in the fields of functional food, nutritional additives and the like for reducing postprandial blood glucose, antioxidant and the like.

The invention belongs to the technical field of plant extraction, and particularly discloses application of deuterium-depleted water in extraction of polyphenol compounds in plants and an extraction method of the polyphenol compounds. The method comprises the following steps: selecting plant powder and an extraction solvent according to a solid-liquid ratio of 1: (10-50) ml / g, adding the plant powder and the extraction solvent into an extraction tank, uniformly mixing, extracting for 10-120 minutes under the conditions that the temperature is 120-220 DEG C and the pressure is 4-6 Mpa, and filtering and centrifuging an extracting solution to obtain an extract containing polyphenol compounds; wherein deuterium-depleted water with deuterium concentration less than 138 ppm is adopted as an extraction solvent. According to the method, deuterium-depleted water is applied to extraction of polyphenol compounds in plants for the first time, green extraction is achieved, and the extraction efficiency of the method is far better than that of existing reflux extraction, ultrasonic extraction and other methods.

Provided is a phenolic composition having enhanced biodegradability and / or photostability, said composition containing a phenol and at least one compound containing one or more atoms selected from among nitrogen, sulfur, and phosphorous.

The invention provides a catalyst component for olefin polymerization, a preparation method and application of the catalyst component, a catalyst containing the catalyst component and used for olefin polymerization and application of the catalyst. The catalyst component comprises a reaction product of a sulfur-containing magnesium compound as shown in a formula (I), a titanium compound and an internal electron donor compound, in the formula (I), R1 is selected from C1-C8 alkyl groups or C3-C8 cycloalkyl groups; r2 and R3 are the same or different and are independently selected from hydrogen or C1-C5 alkyl groups, and hydrogen on the alkyl groups can be optionally substituted by halogen atoms; x is halogen, preferably chlorine or bromine; m ranges from 0.1 to 1.9, n ranges from 0.1 to 1.9, and m + n = 2, 0lt; q < = 0.5; the internal electron donor compound comprises a 1, 3-diether compound and an aminophenol compound. When the catalyst component for olefin polymerization provided by the invention is used for olefin polymerization, the hydrogen regulation sensitivity is relatively low, the stable control of the melt index of the product is facilitated, and the melting point of the prepared polymer product is lower.

The application belongs to the technical field of bioactive nanomaterials, and particularly relates to a metformin nanomaterial, a preparation method and application thereof. The average hydrodynamic diameter of the nanomaterial is less than 500 nm, and the nanomaterial is prepared by a preparation method comprising the following steps: self-assembly of metformin and polyphenols to obtain metformin-polyphenol nanoparticles; reaction of bisphosphonate and polyethylene glycol to obtain bisphosphonate-polyethylene glycol organic segments; and reaction of the metformin-polyphenol nanoparticles and the bisphosphonate-polyethylene glycol organic segments to obtain the nanomaterial. The metformin, polyphenol, polyethylene glycol and bisphosphonate are prepared into the metformin-loaded nanomaterial through specific reactions, the systemic delivery of metformin is realized, the efficacy and bioavailability of metformin on osteoporosis are improved, and the bone targeting of metformin is also improved.

The invention discloses a perovskite solar cell and a preparation method thereof, and a photovoltaic module, the perovskite solar cell comprises a perovskite layer, the perovskite layer contains a fluorine-substituted phenol compound, and the molecular weight of the fluorine-substituted phenol compound is less than or equal to 200. According to the perovskite solar cell, the defects in and on the surface of the perovskite layer can be effectively passivated, the carrier transmission and collection effect is improved, and the photoelectric conversion efficiency of the perovskite solar cell is further improved.

The application provides a coffee peel enzyme fermentation agent and a preparation method of the enzyme, and belongs to the technical field of enzyme production.The preparation method of the coffee peel enzyme comprises the following steps: mixing coffee peel powder and sugar of sweetener oil residue, and sequentially performing fermentation of Saccharomyces cerevisiae YNXC003 and anaerobic fermentation of Bifidobacterium bifidum YNXC004 to obtain the coffee peel enzyme.The coffee peel powder and the sugar of sweetener oil residue are used as composite raw materials, special bacterial agents are combined, and a segmented fermentation mode is adopted, so that the nutritional activity of the two raw materials can be fully released, the nutritional level and flavor taste of the enzyme can be significantly improved, and the enzyme can be endowed with physiological functions such as blood sugar reduction.The total acid content of the coffee peel enzyme is 8-12 g / L, the total phenol content is 1.5-2.5 g / L, the coffee peel enzyme is rich in bioactive substances such as short-chain fatty acids, polyphenol compounds and amino acids, and has a significant blood sugar reduction effect.

This invention relates to the field of emulsion technology, specifically disclosing a method for preparing a casein micelle-phenol-whey protein ternary complex, comprising: S1, screening bovine milk with κ-casein genotype AA, and using it as raw material to prepare a casein micelle solution; S2, adding a phenolic compound to the casein micelle solution to form a casein micelle-phenol binary complex mixed solution; S3, dialyzing the mixed solution obtained in step S2; S4, adding whey protein; by combining a phenolic compound (such as EGCG) with casein micelles and whey protein to form a ternary complex, the degree to which proteins form dense clots in the stomach can be reduced, making the clot structure looser, thereby accelerating the digestion rate and reducing stomach discomfort.

The invention discloses a bifunctional mesoporous silica catalytic material and a preparation method thereof.The material is characterized in that mesoporous silica serves as a carrier, two kinds of functional groups including sulfonic acid groups and sulfydryl groups are cooperatively introduced to the surface of a mesoporous framework, and a bifunctional catalyst with acid catalysis and concerted catalysis capabilities is formed; the catalyst can efficiently catalyze condensation of phenol and acetone to prepare bisphenol A. In the preparation process, a sol-gel method is adopted for synthesizing a mesoporous silica carrier, a sulfydryl functional group is introduced through a sulfydryl siloxane compound, meanwhile, phenyl is introduced through a phenyl siloxane compound, then a benzene ring is converted into a sulfonic acid group through sulfonation reaction, and finally the catalytic material of a regular mesoporous structure is obtained, the pore size distribution is 2-50 nm, and the molecular weight of the catalytic material is 100-200. The specific surface area is not less than 200 m / g. The invention provides a novel catalytic technical scheme for efficient and green synthesis of bisphenol compounds, and can be widely applied to the condensation reaction process in the field of fine chemical engineering.

Provided are: a curable resin composition that is capable of meeting PFAS regulations and has improved resolution; a dry film that has a resin layer formed using the curable resin composition; and a cured product that is formed using the curable resin composition or the resin layer of the dry film. An embodiment of the present invention includes a polyhydroxyamide compound containing the structure of formula (1), a crosslinking agent, a photoacid generator, and a phenol compound. The polyhydroxyamide compound does not have a perfluoroalkyl skeleton. The weight-average molecular weight of the phenol compound is 5,000 or less. (In formula (1), R1 is a divalent organic group, and R2 is a tetravalent organic group.)

The present invention discloses a compound of formula (I); specifically, the invention relates to a compound shown as a formula (I) or pharmaceutically acceptable salt, stereoisomer, prodrug, deuterated derivative or solvate, and application of the compounds in drugs for treating or preventing pain, gout, epilepsy, insomnia, anxiety disorder, depression, Parkinson's syndrome and other related diseases.

The application discloses a kind of organic silicon modified amine epoxy curing agent and preparation method thereof, the curing agent structure is composed of organic silicon, phenol, amine structure, preparation method includes the following steps: (1) the phenolic compound of double bond substituent group, catalyst and hydrogen-containing silicone oil are stirred and mixed uniformly under 50~75 ℃ nitrogen atmosphere, then heated to 65~90 ℃ and react for 4~6h, then solvent is removed by evaporation to obtain organic silicon modified phenol;(2) polyamine, organic silicon modified phenol, aldehyde compound and solvent are mixed uniformly, stirred uniformly under 50~75 ℃ nitrogen atmosphere, then refluxed and react for 2~4h, after solvent is removed by evaporation to obtain organic silicon modified amine epoxy curing agent.The application solves the problem that the bonding performance of epoxy adhesive is poor in humid or underwater environment, effectively improves the bonding performance of epoxy adhesive in seawater, freshwater and other underwater environment, and provides technical support for the bonding and sealing of moisture-resistant and heat-resistant electronic packaging, deep-sea underwater marine equipment and facilities.

This invention relates to the field of metal protection and lubrication materials, and discloses a silent, vibration-damping, film-forming, long-lasting rust-preventive oil for bearings and its preparation method. The rust-preventive oil comprises a base oil, a dynamic borate ester-organosilicon-tungsten bridging synergistic modifier, itaconic acid hydrazine, a dimer ester, calcium petroleum sulfonate, polyisobutylene, a phosphate extreme pressure agent, and an antioxidant. The dynamic borate ester-organosilicon-tungsten bridging synergistic modifier forms a reversible dynamic covalent network of borate esters with phenylboronic acid through a diol-based compound, and then undergoes a confined sol-gel polymerization reaction with vinyltriethoxysilane to form silicon-oxygen segments. These segments are then coordinated and bridged by tungstate and diol groups to construct a three-dimensional coupled structure. The rust-preventive oil of this invention has advantages such as high film density, strong adhesion, good vibration damping and noise reduction effect, and strong rust prevention durability, making it suitable for the storage and operational protection of high-end bearings.

The invention provides a phenolic compound with a hangover alleviating effect and a preparation method thereof. The structural formula of the polyphenol compound 1-(2, 4-dihydroxyphenyl)-2-(4-O-glucosylphenyl) ethanone is as shown in formula (I), and the polyphenol compound 1-(2, 4-dihydroxyphenyl)-2-(4-O-glucosylphenyl) ethanone is separated from pueraria thomsonii. In-vitro pharmacological experiments prove that the compound 1-(2, 4-dihydroxyphenyl)-2-(4-O-glucosyl phenyl) ethanone has good acetylcholin esterase inhibitory activity, and the EC50 value of the compound 1-(2, 4-dihydroxyphenyl)-2-(4-O-glucosyl phenyl) ethanone is 0.41 + / -0.07 mM, which indicates that the compound 1-(2, 4-dihydroxyphenyl)-2-(4-O-glucosyl The polyphenol compound 1-(2, 4-dihydroxyphenyl)-2-(4-O-glucosylphenyl) ethanone is expected to be used as a lead compound to develop a novel alcohol effect dispelling and liver protecting medicine.