1383 results about "Phenol Compound" patented technology

The invention discloses metal element-doped nano silicon carbon as well as a preparation method and application thereof, and relates to the field of negative electrode materials. The nano silicon carbon takes porous carbon as a carbon skeleton, and the porous carbon is sequentially attached with nano silicon and coated with a carbon material layer through a chemical vapor deposition method; the porous carbon is prepared by carbonizing resin containing metal nitride after alkali activation and pore forming, and the resin containing the metal nitride is prepared by condensation polymerization of a phenolic compound, an aldehyde compound and the metal nitride in the presence of a catalyst. The porous carbon is doped with the metal nitride in the resin polycondensation process, the conductivity of the nano silicon carbon is effectively improved, the powder resistance is reduced, holes in the surface of the porous carbon provide more expansion space for deposited nano silicon, a carbon material layer formed by subsequent deposition and coating provides a protection effect, the reaction between silicon and an electrolyte can be inhibited, and the service life of the nano silicon carbon is prolonged. A stable SEI film is formed, the cycling stability of the material is improved, the volume expansion rate of a pole piece is inhibited, and the cycling life and the stability of the battery are improved.

The invention belongs to the technical field of flame-retardant materials, and particularly relates to a phenylboronic acid-based P / N / B-containing halogen-free flame retardant, a preparation method thereof and application of the phenylboronic acid-based P / N / B-containing halogen-free flame retardant in epoxy resin. The preparation method comprises the following steps: by taking diphenyl hypophosphorous chloride as a basis, preparing a flame-retardant intermediate through nucleophilic substitution reaction between diphenyl hypophosphorous chloride and an aldehyde group-containing phenolic compound, then reacting a phenylboronic acid structure with 3-amino-1, 2-propylene glycol to obtain an amino group-containing phenylboronic acid compound, and finally reacting the phenylboronic acid compound with 3-amino-1, 2-propylene glycol to obtain the amino group-containing phenylboronic acid compound. And finally, carrying out a Schiff base reaction on the flame-retardant intermediate and an amino-containing phenylboronic acid compound to obtain the halogen-free flame retardant containing phosphorus, nitrogen and boron elements. The flame retardant provided by the invention can significantly improve the flame retardant property and mechanical property of epoxy resin. A flame-retardant epoxy resin prepared based on the flame retardant; the influence on Tg of an epoxy resin cured product is small, the smoke suppression and char formation performance and the mechanical performance of the cured product can be remarkably improved, and meanwhile, the flame retardant has excellent flame retardant efficiency; the limit oxygen index of the flame-retardant epoxy resin can reach 31%; the vertical combustion grade is V-0 or above, and the carbon residue amount can reach 18% or above.

The invention provides a functional graded porous carbon microsphere and a preparation method and application thereof, the preparation method comprises the following steps: S1, mixing a soft template, a phenolic compound, a cross-linking agent and a basic catalyst, and reacting to obtain a thermosetting phenolic resin microsphere; s2, carrying out pre-carbonization treatment on the thermosetting phenolic resin microspheres to obtain a carbonized material; s3, performing physical activation on the carbonized material to obtain graded porous carbon microspheres; s4, performing heat treatment on the graded porous carbon microspheres to obtain functionalized graded porous carbon microspheres; the preparation method has the characteristics of simple process, environmental protection and economical efficiency, the functionalized porous carbon microspheres prepared by the method are uniform in morphology, and the pore volume, pore diameter and pore structure of the functionalized graded porous carbon microspheres can be accurately regulated and controlled, so that the functionalized graded porous carbon microspheres meeting application requirements are obtained.

The invention relates to a preparation method of a silver nanowire based on a phenolic compound and the silver nanowire, and the preparation method comprises the following steps: 1, respectively dissolving polyvinylpyrrolidone, small molecular phenolic acid, halide, a silver source and the phenolic compound in deionized water to obtain respective solutions; 2, sequentially adding a polyvinylpyrrolidone solution, a small molecular phenolic acid solution, a halide solution and a silver source solution, and stirring to obtain a reaction solution A; step 3, adding a phenolic compound solution into the reaction solution A to obtain a reaction system B, and stirring and reacting to obtain a mixed solution C containing silver nanowires; fourthly, the mixed solution C containing the silver nanowires is sequentially centrifuged and washed, and then the silver nanowires are prepared; the diameter of the silver nanowire is 20-150 nm, and the length of the silver nanowire is 5-100 [mu] m. Therefore, according to the design, water is adopted as a solvent to synthesize the silver nanowire, the reaction temperature is low, and the reaction speed is high.

The invention discloses a chlorine-resistant and acid-resistant composite nanofiltration membrane and a preparation method thereof, and belongs to the technical field of membrane separation. A polyhydric alcohol or / phenol compound monomer containing no less than two hydroxyl groups is subjected to interfacial polymerization with cyanuric chloride, so that a relatively loose network structure can be formed, and selective separation of dye and salt is realized. As a hydrochloric acid (HCl) byproduct can be generated in the reaction process, an alkaline compound is added as an acid-binding agent to neutralize HCl and promote the interfacial polymerization reaction, the formed composite nanofiltration membrane structure does not contain amino groups and polyamide bonds sensitive to active chlorine, the reaction sites of the active chlorine are reduced, and the chlorine-resistant stability of the membrane is good. Meanwhile, the polymer film contains a triazine ring structure, and a formed ether bond has good chemical stability, so that the acid-resistant stability of the film is good. The prepared composite nanofiltration membrane has good nanofiltration separation performance, shows good chlorine-resistant and acid-resistant stability, and can be used for separation of dyes / salts.

The invention relates to the technical field of biological adhesives, in particular to a pH response type chitosan medical biological adhesive and a preparation and application method thereof.The preparation method includes the steps that phenylboronic acid modified chitosan, polyphenol compounds, cross-linking agents with different functional groups and polyethylene glycol with different molecular weights are evenly mixed in a PBS buffer solution with the pH equal to 7-8; and adjusting the pH value of the system to 7.5-8 by using a KOH aqueous solution, and standing at room temperature until the pH-responsive chitosan medical biological adhesive is formed. The chitosan biological adhesive disclosed by the invention still keeps excellent adhesive power in a moist environment, is rapid in adhesion, is non-toxic and biodegradable in material, has good biocompatibility, and effectively avoids secondary stitch removal pain caused by non-degradable materials. Due to the charge characteristic of the chitosan, the chitosan has good affinity with human tissues, is suitable for adhesion of various tissues, and has wide clinical application potential.

The invention relates to a whitening and freckle-removing composition containing a composite plant extract and a preparation method of the whitening and freckle-removing composition, and belongs to the technical field of cosmetics. The composition disclosed by the invention is prepared from the following raw materials in parts by weight: 5 to 8 parts of pineapple leaf nano cellulose, 10 to 16 parts of modified starch, 10 to 15 parts of longan seed extract, 6 to 10 parts of mulberry bark extract, 5 to 8 parts of nicotinamide and 8 to 10 parts of hyaluronic acid. The pineapple leaf nanocellulose contains flavonoid and phenolic compounds with double-bond, conjugated double-bond and triple-bond structures, and modified starch is used as a filler to form a film on the surface of skin, so that an anti-ultraviolet protection wall is formed; the betaine-malate ionic liquid is added into the longan seeds, so that extraction of polyphenol in the longan seeds is improved, the longan seeds have acid-base buffering capacity, an auxiliary does not need to be added to adjust the pH value, the components of the prepared composition interact, and the whitening and freckle removing effects are achieved from multiple aspects of ultraviolet resistance, oxidation resistance, inflammation resistance and skin metabolism improvement.

The invention discloses an amido amine underwater curing agent for epoxy resin and a preparation method of the amido amine underwater curing agent, and belongs to the field of epoxy resin curing agents. The invention discloses a high-temperature-resistant phenolic resin, which is prepared from the following components in parts by mass: 20 to 50 parts of amine, 20 to 50 parts of single acid, 10 to 40 parts of phenolic compound and 5 to 20 parts of phenolic resin, and the amine is at least one of aliphatic amine, alicyclic amine and aromatic amine. The method comprises the following steps: reacting amine with single acid at high temperature to generate amido amine, and further dehydrating at the temperature to synthesize imidazoline. And the content of imidazoline is controlled through the water yield. And cooling to 120-140 DEG C, and adding the phenolic compound to further react with the phenolic resin. According to the invention, the stability of the imidazoline content is controlled by controlling the water yield of the reaction, and the imidazoline content is the key for solving the underwater bonding performance of the epoxy resin adhesive. The low-temperature curing characteristic and flexibility of the curing agent are improved by introducing different amines, and the curing agent can be better applied to protection, reinforcement and waterproofing of underwater buildings, so that the service life of underwater facilities is prolonged.

The invention discloses a compound containing a urea structure as well as a preparation method and application of the compound in a color developing agent, and relates to the technical field of color developing agents. The compound containing the urea structure is a # imgabs0 # structure as shown in a formula 1. The compound containing the urea structure is synthesized through multiple steps of Suzuki reaction, bromination reaction and substitution reaction. The compound is used as an electron donor to be applied to a thermosensitive color development system and forms a color development composition with a phenolic compound and an acidic material, and the activation temperature is as low as 60-120 DEG C. The ureido structure stabilizes a reaction intermediate through a hydrogen bond network, enhances the electron transfer efficiency, and significantly improves the color developing sensitivity; the aryl / heteroaryl substituent optimizes the color contrast through the conjugation effect, and meanwhile, the synergistic effect of the hot-melt filler ensures the stability of the system. Compared with a traditional color developing agent, the color developing agent has the advantages of low-temperature activation, high color developing intensity and excellent weather resistance, is suitable for the fields of thermal printing, anti-counterfeiting materials and the like, and overcomes the defects of high reaction temperature and insufficient stability in the prior art.

The invention relates to the technical field of natural pharmaceutical chemistry, in particular to a phenolic compound, a preparation method thereof and application of the phenolic compound to preparation of drugs for treating perimenopausal depression. The phenolic compound provided by the invention has a structure as shown in a formula I or a formula II, and data of the embodiment shows that the compound with the structure as shown in the formula I and the compound with the structure as shown in the formula II have better anti-PMD activity, can be used for preparing the medicine for treating perimenopausal depression, and fills the technical blank. # imgabs0 #

The invention provides a film stripping liquid and a preparation method thereof. The film stripping liquid is composed of a solubilizer, a metal corrosion inhibitor, a surface leveling agent and an organic solvent. Wherein the solubilizer can be a combination containing benzene series, so that the solubility of the photoresist in an organic solvent can be improved, and the service life of the stripping liquid is prolonged. The surface leveling agent is one or more of 1, 3-propylene glycol, 2-phenyl-1, 3-propylene glycol and 2-amino-1, 3-propylene glycol, and is used for improving the uniformity of the film stripping liquid in the film stripping process and avoiding the uneven concave-convex phenomenon on the surface of the photoresist. The metal corrosion inhibitor can be selected from azole or polyphenol compounds and can inhibit corrosion of metals such as Cu and Ag in the film stripping process; and the organic solvent is a combination of xylene and dichloromethane and is mainly used for dissolving and removing the expanded and fallen photoresist. According to the film stripping liquid provided by the invention, the glue stripping speed can be increased, the glue stripping uniformity can be remarkably improved, in addition, metals can be effectively protected from being corroded, and the corrosion speed of the metals such as Cu and Ag is controlled to be limited below 1 A / min.

The invention belongs to the technical field of flame-retardant materials, and particularly relates to a halogen-free flame retardant containing a Schiff base structure, a preparation method of the halogen-free flame retardant and application of the halogen-free flame retardant in epoxy resin. An intermediate is prepared through nucleophilic substitution reaction between an aldehyde group-containing phenolic compound and an acyl chloride compound, and a halogen-free flame retardant containing phosphorus and nitrogen elements and a Schiff base structure is obtained through Schiff base reaction between the intermediate and 1, 3-bis (3-aminopropyl)-1, 1, 3, 3-tetramethyldisiloxane. The flame retardant combines a Schiff base structure, phosphorus and silicon elements, and has the advantages of good thermal stability, significantly improved char yield, excellent flame retardant effect and significantly improved mechanical properties. The modified epoxy resin is further used for modifying the epoxy resin to prepare the flame-retardant epoxy resin; under the condition that the influence on the thermal performance of an epoxy resin cured product is small, the charring performance and the mechanical performance of the epoxy resin cured product can be remarkably improved, and the flame-retardant efficiency is excellent.

The invention belongs to the technical field of traditional Chinese medicine biology, and particularly relates to a phenolic compound and a preparation method and application thereof.The phenolic compound is a pair of diastereoisomers, the formula I of the phenolic compound is dextroisomer and is named as (+)-fresh bamboo juice phenol B, and the formula II of the phenolic compound is levoisomer and is named as (-)-fresh bamboo juice phenol B. A pair of diastereoisomer phenolic compounds (+)-fresh bamboo juice phenol B and (-)-fresh bamboo juice phenol B are successfully obtained from fresh bamboo juice, and the diastereoisomer phenolic compounds (+)-fresh bamboo juice phenol B and (-)-fresh bamboo juice phenol B have remarkable inhibition effects on gastric cancer cells, liver cancer cells, colorectal cancer cells, bladder cancer cells and lung cancer cells of a human body through in-vitro cell tests; the compound can be used for preparing medicines for preventing or treating tumors, and has a wide application prospect.

The invention relates to the technical field of pet food antioxidants, in particular to a compound pet food antioxidant containing plant polyphenol compounds and a preparation method of the compound pet food antioxidant. 10 to 20 parts of a grape seed extract; 8 to 15 parts of a rosemary extract; 5 to 10 parts of L-ascorbyl palmitate; 5 to 10 parts of alpha-tocopheryl acetate; 3-8 parts of citric acid; 8 to 15 parts of soybean lecithin; 20 to 30 parts of medium chain triglyceride; eGCG (epigallocatechin gallate) in the green tea contains a plurality of o-dihydroxyl structures, the grape seed procyanidine has a unique C6-C3-C6 skeleton, and carnosic acid in the rosemary belongs to a diterpenoid compound. Due to the diversity of the structure, the compound can play a role in different types of free radicals and oxidation reactions, and a broad-spectrum anti-oxidation network is formed.

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 method for synthesizing phenolic compounds by catalyzing hydroxylation reaction of aromatic compounds by iron, which comprises the following step: in a solvent, catalyzing and oxidizing aromatic compounds to synthesize phenolic compounds by taking iron as a catalyst and amino acid or derivatives thereof as ligands under the action of an oxidizing agent and a reducing agent. According to the method, the phenolic compound is synthesized by carrying out hydroxylation on the C-H bond of the catalytic oxidation aromatic compound. The method has the advantages that the catalyst is wide in source and low in cost; the oxidant is wide in source, safe and environment-friendly; the compatibility of substrate functional groups is good, and the reaction selectivity is good; complex small molecules can be well converted into hydroxylated products, and the like. According to the method disclosed by the invention, under optimized reaction conditions, the yield of the separated target product can reach 95%.

The invention discloses a toughening agent, a toughened epoxy resin adhesive and a preparation method and application thereof. The toughening agent is obtained by carrying out esterification reaction on components including a phenolic compound containing a polyphenol skeleton and an anhydride compound containing a long-chain alkyl structure. The raw materials used by the toughening agent are bio-based molecules and have excellent renewability, the toughening agent is high in toughening efficiency, the impact strength of the epoxy resin adhesive can be effectively improved under the condition of low addition amount, and meanwhile, the bonding strength and the hydrothermal durability of the epoxy resin adhesive can be improved.

The invention relates to the technical field of petrochemical proppants, and discloses a high-performance phenolic resin material which comprises the following components in percentage by weight: 60%-75% of modified phenolic resin, 5%-15% of a curing accelerator, 10%-20% of a flexibilizer, 5%-20% of a filler and 3%-10% of a multifunctional additive, the modified phenolic resin is prepared by the following steps: mixing a phenolic compound and a formaldehyde solution in a reaction kettle, adding a basic catalyst, and reacting to obtain a phenolic prepolymer; gradually adding a modifier containing a hydroxyl group, an epoxy group and a carboxyl group into the phenolic prepolymer, and simultaneously stirring to obtain a mixture; heating the obtained mixture for reaction to complete crosslinking modification reaction to obtain modified phenolic resin; and cooling the modified phenolic resin to room temperature for later use. By adopting the design of the multifunctional flexibilizer and the composite filler, the toughness and thermal conductivity of the material are improved, meanwhile, the curing efficiency is accelerated through the curing accelerator, and the industrial cost is reduced.

Aiming at the inadequacy of existing hemostatic materials for large-scale trauma and serious bleeding, the present invention provides a silk fibroin complex loaded with a polyhydroxy phenolic compound and a preparation method therefor. The complex is prepared by self-assembly of the polyhydroxy phenolic compound and the silk fibroin. The silk fibroin is subjected to a β-sheet conformation transformation process. The polyhydroxy phenolic compound is preferably an indissoluble compound, most preferably ellagic acid. The feeding ratio of the polyhydroxy phenolic compound to the silk fibroin is a mass ratio of ˂ 1:1, preferably 1:2 to 1:16, more preferably 1:4. The hemostatic ability of the complex is significantly superior to that of the polyhydroxy phenolic compound, the silk fibroin, Yunnan Baiyao, tranexamic acid, chitosan hemostatic powder, and the like. Meanwhile, the complex has a larger particle size and mass than the silk fibroin, and can rapidly settle to a bleeding site in blood. The complex exhibits no cytotoxicity, is blood-insoluble, and is capable of self-degradation in vivo, demonstrating high safety. Meanwhile, the complex has the characteristics of wound healing, antibiosis, infection resistance, adhesion resistance, and the like, and can be applied to the preparation of corresponding formulations.

The invention relates to a high-temperature-resistant low-dielectric high-strength benzoxazine intermediate and a preparation method of benzoxazine, and belongs to the field of functional polymer materials. The method comprises the following steps: adding paraformaldehyde, unsaturated bond-containing dihydric phenol, a monohydric phenol compound and a diamine compound into a reactor, adding a solvent, reacting at 85-110 DEG C for 8-12 hours, after the reaction is finished, obtaining a benzoxazine intermediate through a purification process, and fully drying the benzoxazine intermediate for later use; and reacting the benzoxazine intermediate at 120-230 DEG C for 8-20 hours to obtain the polybenzoxazine resin.

The invention discloses application of phloroglucinol compounds to inhibition of fusarium plant pathogenic fungi and prevention and treatment of related plant diseases, and belongs to the technical field of agricultural bactericides. In order to solve the technical problems that an existing method for preventing and treating plant diseases caused by fusarium is poor in effect and has defects, 15 compounds are extracted from dryopteris fragrans, and structural identification shows that the 15 compounds belong to phloroglucinol compounds. Then, the in-vitro bacteriostatic effects of the 15 compounds on fusarium oxysporum, fusarium graminearum and fusarium laminatum are detected, the compounds 5, 6, 7, 8, 10, 11, 13 and 14 are found to have bacteriostatic effects on fusarium fungi, and the compound 10 (aspidinol B) has the strongest in-vitro inhibitory effect on the three fusarium fungi; furthermore, an in-vivo antibacterial experiment proves that the compound 10 has a good prevention and treatment effect on pathogenic fungal diseases of three fusarium plants.

The invention provides a lactobacillus acidophilus HX-LA15 with strong antioxidant activity, the preservation number of the lactobacillus acidophilus HX-LA15 is CGMCC (China General Microbiological Culture Collection Center) No.32954, and the lactobacillus acidophilus HX-LA15 is preserved in China General Microbiological Culture Collection Center on December 23, 2024. Meanwhile, the invention further provides a compound fermentation product of the lemon myrtle leaves and the herba cistanche, a probiotic preparation containing the lactobacillus acidophilus HX-LA15 and the compound fermentation product as well as a preparation method and application of the probiotic preparation. The lactobacillus acidophilus HX-LA15 provided by the invention has a remarkable scavenging capability on free radicals, and compared with other probiotics, the lactobacillus acidophilus HX-LA15 can be used for remarkably increasing the content of cistanoside A and polyphenol compounds in a compound fermentation product after fermenting the lemon myrtle leaves and the cistanche; therefore, the fermented product has the function of improving reproductive function decline and reproductive aging of mice with kidney-yang deficiency, and has a good application prospect.

The invention relates to the technical field of photovoltaic cutting, in particular to diamond wire surface modification liquid, a preparation method of the diamond wire surface modification liquid, a modified diamond wire and a preparation method and application of the modified diamond wire. The diamond wire surface modification liquid provided by the invention comprises a component A and a component B, and the mass ratio of the component A to the component B is (40-80): (20-60); the component A is prepared from the following components in percentage by mass: 5 to 40 percent of titanium alkoxide, 2 to 30 percent of organic solvent and the balance of water; the component B is prepared from the following components in percentage by mass: 1 to 10 percent of polyphenol compounds and the balance of water. Hydrophilic modification is carried out on the diamond wire by adopting the diamond wire surface modification liquid, the liquid carrying capacity of the diamond wire is improved, it is guaranteed that components of the cutting liquid are effectively carried into cutting slits in the photovoltaic cutting process, and wire marks of silicon wafers in the production process are reduced; and the use amount of wetting components in the cutting fluid is reduced.

The invention relates to the technical field of gene engineering and recombinase catalysis engineering, in particular to a recombinant strain for expressing phenolic acid decarboxylase as well as a construction method and application of the recombinant strain. According to the invention, a recombinant strain for expressing the phenolic acid decarboxylase PADCs is constructed by heterologous expression of a coding gene PADCs of the phenolic acid decarboxylase. The enzyme liquid of the recombinant strain for expressing the phenolic acid decarboxylase has remarkable catalytic performance, p-coumaric acid can be used as a substrate, the recombinant strain is used for inducing expression, the purified enzyme liquid is used for catalyzing decarboxylation reaction of p-coumaric acid, and p-hydroxystyrene is synthesized; meanwhile, the phenolic acid decarboxylase PADCs has a wide substrate spectrum, the 4-vinylphenol compound can be used as a substrate, bicarbonate is used as a carboxyl source, the freeze-dried whole cell of the recombinant strain is utilized to catalyze the 4-vinylphenol compound to carry out regioselective beta-carboxylation reaction, a series of phenolic acids with biological activity are synthesized by an enzymic method, and meanwhile CO2 is immobilized; and a huge application potential is provided for the utilization of CO2.

The invention belongs to the field of sulfone polymer materials, and particularly relates to a sulfone polymer with narrow molecular weight distribution and low gel content and a preparation method thereof. The preparation method comprises the following steps: 1) adding an organic bisphenol compound, 4, 4 '-dichlorodiphenyl sulfone, a salt-forming agent and a purified aprotic polar solvent into a reactor, uniformly stirring and mixing the system, then carrying out deoxygenization operation, and controlling the oxygen content in the system to be less than or equal to 100ppm; and 2) after the replacement is completed, introducing inert gas (such as nitrogen) into the system for a long time, and carrying out two-stage heating reaction under the condition to obtain a viscous sulfone polymer solution. The molecular weight distribution of the sulfone polymer is less than 3, and the gel structure content is greater than 0 and less than 3 mol%. The oxygen content in a reaction system is reduced, and generation of polymer free radicals is reduced, so that the gel structure content is controlled, and the linear sulfone polymer material with narrow molecular weight distribution is obtained.

The invention provides a solvent-assisted aminolysis method of a waste polyurethane material, which comprises the following steps: mixing a catalyst with an aminolysis reagent to form an aminolysis solution, mixing the aminolysis solution with an aprotic solvent, then adding the waste polyurethane material, and carrying out aminolysis reaction under a heating condition to degrade the waste polyurethane material. And separating the aprotic solvent and the aminolysis reagent from the degradation liquid, and cleaning the obtained solid product to obtain the degradation product of the waste polyurethane material. According to the method, the degradation temperature of the existing aminolysis method for degrading the waste polyurethane material can be reduced, and the degradation speed of the existing aminolysis method for degrading the waste polyurethane material can be increased. The invention also provides a method for preparing the supramolecular adhesive by recovering the degradation product of the waste polyurethane material, which comprises the following steps: fully mixing the degradation product of the waste polyurethane material obtained by the method with the polyphenol compound at 60-120 DEG C to obtain the supramolecular adhesive. According to the method, the aminolysis temperature of the waste polyurethane material can be reduced, and the reutilization operation of the waste polyurethane degradation product is simplified.

The invention discloses a preparation method and application of a self-supporting iron-nickel-boron-loaded foamed nickel composite material, and the preparation method comprises the following steps: alternately immersing foamed nickel into a reducing agent solution and an iron precursor solution by adopting an alternate immersion method to promote metal ions to grow iron-nickel-boride on the surface of the foamed nickel in an autocatalytic manner, thereby obtaining the self-supporting iron-nickel-boron-loaded foamed nickel composite material. And thus, the self-supporting iron-nickel-boron loaded foam nickel composite material is obtained. The composite material can be used for assembling a catalyst module, activating periodate and realizing complete degradation of chlorophenol compounds. The prepared self-supporting composite material has high catalytic activity and stability, active components are uniformly and firmly distributed, a catalyst module constructed based on the self-supporting composite material effectively avoids separation and recovery difficulty of a powder catalyst in practical application, modular management and large-scale amplification are facilitated, and the self-supporting composite material has a wide application prospect and is suitable for industrial production. Especially in the technical field of environmental engineering.

The invention belongs to the technical field of carbon aerogel, and particularly relates to phenolic resin-based carbon aerogel and a preparation method thereof.The preparation method comprises the following steps that 1, phenolic resin is prepared, specifically, a phenolic compound and an aldehyde compound are added into a reaction kettle for a reaction, a catalyst is added for continuous stirring, the heating temperature and stirring time of the reaction kettle are controlled, and phenolic resin is prepared; phenolic resin is obtained; 2, phenolic resin treatment: taking out the prepared phenolic resin, adding an organic solvent, and stirring to prepare a phenolic resin solution; step 3, gel preparation: putting the mixed solution into a reaction kettle, adding an organic solvent, continuously heating, then stopping heating, and cooling a high-pressure kettle to obtain organic aerogel; step 4, gel treatment: activating the organic carbon material to form a carbon aerogel precursor, and activating and cleaning the surface by adopting a normal pressure plasma technology; the organic aerogel is added into a cracking furnace, protective gas is added, the cracking furnace is heated, heat preservation is conducted, cooling is conducted, and the carbon aerogel is obtained.The newly-prepared phenolic resin is adopted, it is avoided that the quality of the phenolic resin is affected by long-time storage, the organic matter is added, and the carbon aerogel is prepared by carbonizing the organic matter after activating treatment; therefore, the forming quality of the carbon aerogel is guaranteed.

The invention discloses a silicon-carbon composite material, a preparation method and application thereof and a lithium ion battery. The preparation method of the silicon-carbon composite material comprises the following steps: S1, carrying out silicon deposition on pre-lithiated porous carbon by adopting a chemical vapor deposition method to obtain a first precursor; s2, coating the surface of the first precursor with a passivation layer to obtain a second precursor; s3, adding an alkaline reagent into a mixed solution containing the second precursor, transition metal salt and a solvent, and drying to obtain a third precursor; s4, performing carbon deposition on the third precursor by adopting a chemical vapor deposition method to obtain a fourth precursor; and S5, carrying out polymerization reaction on slurry containing the fourth precursor, a phenolic compound and an aldehyde compound, drying and then carrying out carbonization treatment. The silicon-carbon composite material is relatively good in conductivity and mechanical strength and excellent in expansion inhibition performance, and the obtained lithium ion battery can give consideration to excellent first effect, gram volume, rate capability and cycle performance.

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.