164 results about "Benzylamine" patented technology

The invention discloses a temperature-resistant high-strength powder coating and a preparation method thereof, and belongs to the field of coatings. The invention relates to a temperature-resistant high-strength powder coating which is prepared from the following raw materials in percentage by weight: 40-50% of epoxy resin; 20-30% of polyester resin; 6-10% of a curing agent; 1-3% of a leveling agent; 1-2% of a filler; and the balance of pigment. According to the polyester resin, aliphatic diisocyanate reacts with polyether polyol and hydroxyl silicone oil to obtain a polyurethane prepolymer, and then the polyurethane prepolymer reacts with vinyl benzylamine, an acrylate monomer and an acrylic monomer to obtain the polyester resin. The powder coating has the advantage that the temperature resistance and the strength of the powder coating are improved.

The invention discloses an impact-resistant packaging material and a preparation method thereof, and relates to the technical field of packaging materials. When the impact-resistant packaging material is prepared, the zinc oxide-loaded porous silicon dioxide microspheres and the phosphorus-silicon synergistic flame retardant react to prepare functionalized porous silicon dioxide microspheres; the preparation method comprises the following steps: reacting 4-[2, 2 ': 6', 2 ''-terpyridyl]-4 '-yl-benzylamine with ethyl acrylate to prepare a terpyridyl diester monomer; the preparation method comprises the following steps: carrying out condensation polymerization on ethylene glycol, a terpyridyl diester monomer and benzophenone-4, 4 '-diethyl diformate to prepare functional polyester; the functionalized polyester and 2-aminoethyl-2-cyanoacetate are subjected to a reaction, and modified polyester is prepared; and carrying out melt blending on the modified polyester, the functionalized porous silicon dioxide microspheres, zinc chloride and 1, 6-dichlorohexane, and carrying out compression molding to obtain the impact-resistant packaging material. The impact-resistant packaging material prepared by the invention has excellent anti-aging, impact-resistant, flame-retardant and antibacterial properties.

The present disclosure relates to a preparation method for a composite quaternary ammonium salt cationic collector and a use of the preparation method. The method comprises: adding halogenated alkyl into alkyl tertiary amine containing amide groups for a quaternization reaction to obtain an intermediate; and adding a catalyst into the intermediate for a catalytic reaction to obtain a first mixture, adding alkyl benzylamine into the first mixture for an amidation reaction to obtain a second mixture, and carrying out desalination treatment on the second mixture to obtain a composite quaternary ammonium salt cationic collector, wherein a molar ratio of the alkyl tertiary amine to the halogenated alkyl to the alkyl benzylamine is (1-1.4):(0.8-1.2):(1-1.4).

The invention discloses a method for preparing spermidine. The method comprises the following steps: dissolving oxalyl chloride and a base in a first solvent, slowly adding 4-bromo-1-butylamine hydrobromic acid, and reacting to obtain 2-((4-bromobutyl)amino)-2-oxoacetyl chloride; adding a base to the reaction solvent of the obtained 2-((4-bromobutyl)amino)-2-oxoacetyl chloride, and slowly adding 3-bromo-1-propylamine hydrobromic acid to obtain N 1 ‑(4‑Bromobutyl)‑N 2 ‑(3‑bromopropyl)oxalamide; 1 ‑(4‑Bromobutyl)‑N 2 ‑(3‑bromopropyl)oxalamide, benzylamine and a base are added to a second solvent to react to obtain 8‑benzyl‑1,4,8‑triazacyclododecane‑2,3‑dione; 8‑benzyl‑1,4,8‑triazacyclododecane‑2,3‑dione is added to an acid for hydrolysis to obtain N 1 ‑(3‑Aminopropyl)‑N 1 Benzylbutane-1,4-diamine; N 1 ‑(3‑Aminopropyl)‑N 1 Benzylbutane-1,4-diamine is added to Raney nickel / methanol, and hydrogen is passed through the reaction to obtain crude spermidine, which is then distilled to obtain pure spermidine. The preparation method of the present invention is easy to operate and safe, easy to industrial-scale production, and has a high conversion rate of spermidine and high product purity.

The invention discloses a nano-particle type thick oil viscosity reducer as well as a preparation method and application thereof, and belongs to the technical field of thick oil chemical additives. The preparation method comprises the following steps: dissolving 1 part of anhydrous citric acid, 2-2.7 parts of benzylamine and 0.3-1 part of octadecylamine in an ethanol solution according to a molar ratio, and uniformly stirring; then putting the mixture into a reaction kettle to react at a constant temperature of 180 DEG C, and cooling to obtain a crude product; and concentrating, dialyzing and purifying the crude product, and drying to obtain the nano-particle type thick oil viscosity reducer. According to the thick oil viscosity reducer, a polymer with a good viscosity reduction effect is formed through molecular design, and due to the fact that the molecular weight of the polymer is small, the polymer is in a nano-particle form on the microscopic scale, and based on the surface effect and the high specific surface area of nano-particles, the polymer has good dispersing performance and infiltration capacity; the nanometer effect further promotes the functional groups in the viscosity reducer molecules to depolymerize asphaltene aggregates in the thickened oil, and the viscosity reducer shows a good viscosity reduction effect. And the process is simple and easy to control, does not use toxic solvents, and is very environment-friendly.

The invention relates to a solid electrolyte of organic-inorganic hybrid halogen compound molecules, preparation thereof and an all-solid-state battery, and belongs to the technical field of energy storage batteries. The chemical general formula of the solid electrolyte is MaNb + eQcXdYa + bn + cq + dxZen or MaN2b + eQcXdYa + cq + dxZenObn, wherein M is selected from one of methylamine, ethylamine, propylamine, butylamine, aniline, benzylamine and phenylethylamine; n, Q and X are different metal elements; y is selected from halogen; z is a pseudohalide ion; the value range of a, b, c, d and e is 0 lt; a < = 3, 0lt; b < = 3, 0lt; c < = 1, 0lt; d < = 1, 0lt; e < = 6; and n, q and x are values of valences of the N element, the Q element and the X element respectively. The electrolyte material disclosed by the invention has high ionic conductivity, good flexibility and machinability and excellent air stability, and a battery formed by the solid electrolyte material has excellent electrochemical performance.

The invention discloses a preparation method and application of a catalyst for generating benzonitrile through electrocatalytic oxidation of benzylamine, and belongs to the technical field of nanotechnology and electrocatalytic oxidation. The NiO-NiMoO4 / NF multi-component composite catalyst of a nanorod structure is used as an electrode, NiO and NiMoO4 form a heterogeneous interface synergistic system, rich active sites are achieved, and the catalyst shows remarkable advantages in benzylamine electrocatalytic oxidation. Under the working voltage of 1.55 V vs.RHE, 99% of benzylamine conversion rate and 94% of Faraday efficiency are achieved, the stability is good, and the catalytic effect is not attenuated after multiple times of recycling. The method breaks through the activity limitation of a non-noble metal catalyst in a low-alkalinity medium through a multi-component synergistic effect, has the advantages of low preparation cost and mild reaction, and avoids the problems of harsh reaction conditions, low yield and high toxicity of used reagents in other synthesis methods.

The invention discloses an application of a SiC QDs catalyst in a photocatalytic benzylamine oxidative coupling reaction. The catalyst takes SiC as a raw material. The preparation method specifically comprises the following steps: dispersing SiC in a hydrofluoric acid-nitric acid mixed aqueous solution, heating to 100 DEG C in a hydrothermal kettle, maintaining for 1-6 hours, taking out, cooling to room temperature, diluting with deionized water, carrying out ultrasonic oscillation, carrying out centrifugal acid removal to obtain neutral large particles, dispersing into deionized water, carrying out ultrasonic treatment, centrifuging, taking supernatant, and carrying out freeze drying treatment to obtain the SiC-based composite material. The SiC QDs catalyst is obtained. By applying the SiC QDs catalyst, the benzylamine can be efficiently subjected to photocatalytic oxidative coupling in an air atmosphere. Compared with the traditional metal photocatalyst, the metal-free nano photocatalyst prepared by the method has the advantage that the catalyst cost is greatly reduced.

The invention provides an anti-aging composition as well as a preparation method, a skin care product and application thereof. The anti-aging composition is prepared from a C6-C3-C6 skeleton compound, cationic amino acid and beta-alanyl hydroxyprolyl diaminobutyric acid benzylamine. The C6-C3-C6 structural compound is natural plant extracts such as quercetin, baicalin and the like, and has excellent oxidation resistance and high safety. Cell and in-vitro experiments prove that the combined action of the three components can effectively reduce the generation of reactive oxygen species (ROS) and enhance the anti-inflammatory action, thereby delaying the cell senescence process. On the basis, carbon dioxide is injected into the anti-aging composition, so that the anti-oxidation and anti-inflammatory capacities of the anti-aging composition are further improved. In addition, the preparation process of the anti-aging composition is simple, the safety and the anti-aging performance of the anti-aging composition are evaluated through various cell experiments and human body trials, and the anti-aging composition is suitable for human skin and can be widely added into various skin care products such as face cream, emulsion and essence.

The invention discloses a reductive aminase mutant and application of the reductive aminase mutant in synthesis of chiral alkylated benzyl propylamine. The invention relates to a mutant protein of carbonyl reductase, which is characterized in that the mutant protein has one or more alternative mutations in sites 85, 87, 128, 134, 162, 197, 219, 234 and 235 on the basis of an amino acid sequence as shown in SEQ ID NO: 1. On the basis of analysis of the crystal structure of reductive aminase M5 in the early stage, stereoselective transformation is carried out through site-specific mutagenesis, combinatorial mutation and the like, an efficient mutant for synthesizing an alkylated benzyl propylamine S-enantiomer is obtained, and a series of chiral amines with the selectivity larger than 99% S are synthesized with different amine donors such as benzyl acetone and benzylamine as substrates. And the method has important significance on industrial green synthesis of the chiral amine.

The invention provides an optical fiber coating adhesion promoter as well as a preparation method and application thereof. The optical fiber coating adhesion promoter is prepared from the following components in parts by mass: 20 to 25 parts of modified epoxy resin, 4 to 7 parts of epoxy acrylate, 12 to 16 parts of modified filler, 32 to 38 parts of propylene glycol methyl ether acetate, 13 to 18 parts of isobutanol, 6 to 10 parts of phosphoric acid and 5 to 7 parts of water. The preparation method of the modified epoxy resin comprises the following steps: (1) in a nitrogen environment, heating epoxy resin to 135-140 DEG C, then adding N, N-dimethyl benzylamine, and keeping the temperature for 8-10 hours to obtain a polyepoxy compound; and (2) sequentially adding N-methylethanolamine and amino-terminated liquid nitrile rubber into the polyepoxy compound, reacting at 125-130 DEG C for 6-8 hours, and cooling to room temperature to obtain the modified epoxy resin. The adhesion promoter for the optical fiber coating can improve the adhesion between the optical fiber and the coating and improve the reliability of the optical fiber.

The invention belongs to the field of organic synthesis, and particularly relates to a synthesis method of isoindolone. An N-methylbenzylamine compound as shown in a formula 1 and a 2-fluorobenzoic acid methyl ester compound as shown in a formula 2 are mixed with methyl tert-butyl ether in the presence of bis (trimethylsilyl) lithium amide and cesium fluoride, and the isoindolone as shown in a formula 3 is synthesized through reaction. The isoindolone derivative is synthesized through a one-pot method, and the method has the prominent advantages that raw materials are simple and easy to obtain, operation is easy and convenient, economy and environment friendliness are achieved, and the substrate applicability is wide.

The invention belongs to the technical field of synthesis of organic compounds, and particularly relates to a synthesis method of a thiophene naphthenic amine derivative. The method comprises the following steps: reacting with benzylamine to generate a halogenated thiophene imine derivative, carrying out cyclization reaction in the presence of alkali to generate a thiophene naphthenic imine derivative, and reacting with organic acid to generate the product thiophene naphthenic amine derivative, so that the reaction conditions are mild, the yield is high, and the method is more suitable for industrial production.

The present application discloses a nanoparticle type heavy oil viscosity reducer and its preparation method and application, which belongs to the technical field of heavy oil chemical additives. The preparation method is to take 1 part of anhydrous citric acid, 2 to 2.7 parts of benzylamine and 0.3 to 1 part of octadecylamine in molar ratio, dissolve them in ethanol solution, and stir them evenly; then put them into a reactor for constant temperature reaction at 180°C, and obtain a crude product after cooling; the crude product is concentrated and purified by dialysis, and the nanoparticle type heavy oil viscosity reducer is obtained after drying. The heavy oil viscosity reducer provided by the present application forms a polymer with good viscosity reduction effect through molecular design, and due to its small molecular weight, it presents a nanoparticle form at the microscopic level. Based on the surface effect and high specific surface area of ​​nanoparticles, it has good dispersibility and penetration ability; the nano effect further promotes the depolymerization of asphaltene aggregates in heavy oil by the functional groups in the viscosity reducer molecules, showing a good viscosity reduction effect. And the process is simple and easy to control, does not use toxic solvents, and is very environmentally friendly.

The invention belongs to the technical field of cable materials, and provides a high-toughness flame-retardant PVC cable material and a preparation method thereof. The PVC cable material comprises the following raw materials in parts by weight: 90-120 parts of PVC resin, 7-12 parts of a novel flame retardant, 8-15 parts of an environment-friendly plasticizer, 2.5-8.5 parts of modified cellulose fibers, 1-2 parts of a silane coupling agent, 1.5-3.5 parts of an antioxidant, 2-4 parts of a compound stabilizer and 1.5-3 parts of a lubricant. The novel flame retardant is modified epoxy resin synthesized by using benzylamine, paraformaldehyde and 9, 10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide as raw materials, the environment-friendly plasticizer is poly (1, 2-propylene glycol adipate), the modified cellulose fiber is eutectic solvent modified lignocellulose, and the flame retardant is a flame retardant. And then loading an ammonium polyphosphate-aluminum hydroxide double-effect flame retardant.

The invention belongs to the technical field of catalyst preparation, and particularly relates to a novel lignin-based copper catalyst and a preparation method and application thereof. The preparation method comprises the following steps: mixing lignin with cyanuric chloride, heating for reaction, and carrying out suction filtration and washing to obtain cyanuric chloride functionalized lignin; mixing the cyanuric chloride functionalized lignin with benzylamine, reacting, and carrying out suction filtration and washing to obtain benzylamine functionalized lignin; and adding the benzylamine functionalized lignin and cuprous iodide into a solvent, reacting, carrying out suction filtration, and washing to obtain the lignin-based copper catalyst. The lignin-based copper catalyst prepared by the method is low in preparation cost, can be recycled, and has the advantages of mild catalytic conditions, high catalytic efficiency and high yield.

The invention belongs to the field of medicinal chemistry, and particularly discloses a pyrrole amide derivative, a preparation method thereof and application of the pyrrole amide derivative as a beta2-adrenergic receptor allosteric antagonist. The structure of the pyrrole amide derivative is shown as a formula I. In the formula I, R1 is ethyl, methyl, isopropyl and the like; r2 is fatty amine, aniline, m-bromoaniline, benzylamine and the like. Pharmacological results show that the pyrrole amide derivative disclosed by the invention has relatively good antagonistic activity on beta2AR, and can perform negative allosteric regulation on the functional activity of isoprenaline (ISO) serving as a normal agonist of beta2AR.

The invention belongs to the technical field of organic synthesis, and particularly provides a preparation method of (trimethylsilyl) methylamine hydrochloride. The preparation method provided by the embodiment of the invention comprises the following steps: carrying out reduction reaction on N-[(trimethylsilyl) methyl] benzylamine, and salifying with hydrochloric acid to generate (trimethylsilyl) methylamine hydrochloride. According to the preparation method disclosed by the embodiment of the invention, milder reduction hydrogenation operation is selected, severe conditions such as high temperature and high pressure are avoided, and the reaction yield and the product purity are improved.

The present invention discloses a method for enzymatically synthesizing ethyl 2-N-benzylamino-4-phenylbutyrate, wherein ethyl 2-oxo-4-phenylbutyrate and benzylamine are used as substrates, and an asymmetric reductive amination reaction is performed by two mutants of a reductive aminase. The reaction is carried out under mild conditions, and a product is obtained by a series of treatments after the reaction. The present invention shortens the synthetic route, reduces costs, reduces material loss, has high conversion rate and high stereoselectivity, conforms to the concept of green development, provides an effective method and theoretical guidance for the synthesis of potential ACEI drugs, and determines the gene sequence and amino acid sequence of the relevant mutants.

The invention provides a method for performing defluorination cyclization reaction on perfluoroalkyl tetralone and benzylamine under the promotion condition of potassium phosphate, and a series of polyfluoroalkyl pyridine compounds are synthesized. According to the reaction, six C (sp3)-F bonds of three carbon sites on a perfluoroalkyl chain are selectively activated, accurate synthesis of the fluoroalkyl-containing substituted pyridine compound is achieved, and the method has the advantages of being mild in condition, good in functional group tolerance, simple in aftertreatment, green in step, low in pollution, high in economic benefit and the like.

The preparation of high-value-added aromatic carboxylic acids via CO2 carboxylation coupling through activation of the benzyl C-H bond in alcohols / amines is a green and sustainable pathway to achieve CO2 resource utilization and contribute to carbon neutrality. However, this field currently faces challenges such as poor catalyst selectivity, low CO2 activation efficiency, and a narrow substrate applicability range, making it difficult to meet practical application needs. To address this issue, this patent discovers that in a heterogeneous electrocatalytic system, cuprous selenide (V2), rich in selenium vacancies, can be used... Se -Cu 2‑x Using Se as the core catalyst, it can not only efficiently promote the synergistic activation of benzyl C-H bonds and CO2 carboxylation, significantly improving the overall catalytic activity of the reaction, but also achieve precise chemoselective carboxylation control for different types of substrates. Specifically, this V Se -Cu 2‑x Se electrocatalysts can efficiently and selectively activate the benzyl C-H bond in alcohols and subsequently induce CO2 carboxylation, exhibiting excellent chemoselectivity in the conversion of benzyl alcohol to mandelic acid and its derivatives. Simultaneously, they also demonstrate excellent catalytic performance for amines, selectively catalyzing the carboxylation of amine substrates such as benzylamine with CO2 to directionally generate phenylglycine and aromatic amine-derived carboxylates. Crucially, in addition to typical benzyl alcohol and benzylamine, the substrate applicability of this catalytic system can be extended to various alcohols and amine derivatives, realizing the carboxylation transformation from simple model substrates to diverse functional molecules, providing a new approach for the large-scale preparation of high-value-added aromatic carboxylates.

The present invention belongs to the technical field of synthesis of metal organic complexes, and specifically relates to a nitrogen heterocyclic carbene-Schiff base type C sp2 ^N sp2 Bidentate cyclic palladium complexes and their synthesis methods and applications. This type of complex is formed by in situ oxidation and chelation of benzylamine or substituted benzylamine in the presence of palladium acetate in air, and then coordinated by nitrogen heterocyclic carbene. This type of Schiff base type C sp2 ^N sp2 The bidentate ligand has a strong electron-donating ability, which increases the electron cloud density of the metal center and more effectively catalyzes the Suzuki-Miruaya coupling reaction.

This application relates to the field of waterborne cathodic electrophoretic coating technology, specifically disclosing a bisphenol A epoxy-polyetheramine composite matte electrophoretic emulsion and its preparation method. The bisphenol A epoxy-polyetheramine composite matte electrophoretic emulsion comprises the following raw materials in parts by weight: 30-40 parts E-51 epoxy resin, 8-10 parts bisphenol A, 9-11 parts bisphenol A polyoxyethylene ether, 0.08-0.12 parts benzylamine, 2.5-3.5 parts methylethanolamine, 0.8-1.2 parts diethylene glycolamine, and 2.5-3.5 parts ketimine. This application uses E-51 epoxy resin, bisphenol A, and bisphenol A polyoxyethylene ether as the matrix skeleton, and obtains an epoxy equivalent prepolymer after chain extension catalyzed by benzylamine. At the same time, toluene diisocyanate is reacted with diethylene glycol butyl ether, diethylene glycol ethyl ether, and trimethylolpropane polyoxyethylene ether to prepare a blocked crosslinking agent, thereby achieving a uniform internal matting effect without the addition of external matting powder.

The invention discloses a method for synthesizing 5-(N, N-dibenzyl amino acetyl) salicylamide, which comprises the following steps: by taking benzaldehyde and benzylamine as raw materials and ethanol as a solvent, heating to a reaction temperature by using a micro-channel reactor, and reacting to obtain N-benzylidene benzylamine after the reaction is finished; taking the prepared N-benzylidene benzylamine as a raw material, adding hydrogen and a palladium carbon catalyst, reacting, and discharging the hydrogen after the reaction to obtain dibenzylamine; 5-bromoacetyl salicylamide and the prepared dibenzylamine are taken as raw materials, K2CO3 is taken as an acid-binding agent (or a deep eutectic solvent is used for replacing the acid-binding agent), acetonitrile is taken as a solvent, the materials are dropwise added under a low-temperature condition, a temperature rise reaction is carried out after dropwise adding is completed, the pH value of an obtained solid is adjusted with diluted hydrochloric acid to be acidic, then filtering, washing and drying are carried out, and the target product 5-(N, N-dimethyl-N, N-dimethyl formamide) is obtained. The compound is N, N-dibenzyl amino acetyl) salicylamide. The method has the advantages that the method is simple, the microchannel reactor is used, the product yield is high, the purity is high, and industrial production is easy.

The application provides an ambroxol oral dissolving film composition, a preparation method and application thereof. The ambroxol oral dissolving film composition comprises an active drug, a film forming material and a taste masking agent, and the active drug is 2-amino-3,5-dibromo-N-(trans-4-hydroxycyclohexyl) benzylamine and / or a pharmaceutically acceptable salt thereof, for example, ambroxol hydrochloride. The ambroxol oral dissolving film composition provided by the application has the advantages of thin thickness, good taste, stable properties, immediate dissolution in the oral cavity without drinking water, and fast oral absorption speed. Moreover, the ambroxol oral dissolving film composition has the advantages of simple process, high drug loading, good drug content uniformity, and good market prospect.

The application discloses a crosslinking agent for degradable hydrogel and a preparation method of degradable polyacrylamide hydrogel based on the crosslinking agent; the crosslinking agent for degradable hydrogel is composed of hydantoin epoxy resin, N, N-dimethyl benzylamine and acrylamide; the degradable polyacrylamide hydrogel prepared by using the crosslinking agent comprises acrylamide, 1.8-4.6 parts of water, potassium persulfate and the crosslinking agent; the crosslinking agent for degradable hydrogel can realize the preparation of the degradable hydrogel by chemical crosslinking method, and by adjusting the crosslinking agent, the degradable hydrogel prepared based on the crosslinking agent is applicable in the temperature environment range of normal temperature to 150 DEG C, the degradable hydrogel has selectivity to gel breaking liquid, and can realize gel breaking only by adding alkaline gel breaking liquid, and the gel breaking time is adjustable in the range of 90 min to 72 h; in addition, the crosslinking agent and the preparation method of the hydrogel are simple, the conditions are easy to control, and have good market application and promotion prospect.

The invention provides a mechanical and pH dual-regulated butterfly potassium ion channel molecule as well as a preparation method and application thereof, and belongs to the technical field of biomimetic materials. According to the butterfly-shaped potassium ion channel molecule disclosed by the invention, third-generation and fourth-generation dendrimer polypropyleneimine (POPAM) are respectively taken as a core, and POPAM is connected with an ion binding site benzo-21-crown ether-7 through a urea bond. Intramolecular hydrogen bond constraint enables GnC7 to present a symmetrical butterfly-shaped topology structure, and the channel has unique motion characteristics, and finally, efficient potassium ion transmembrane transmission with highest potassium-sodium selectivity up to now is realized. The dynamic characteristic is used as the core attribute of GnC7, so that the channel can adjust the potassium ion transmission rate according to the membrane tension change caused by mechanical force. Meanwhile, benzylamine hexafluorophosphate Bh influenced by pH is used as a blocking agent of GnC7 through a host-guest specific compounding effect, and switching of pH-regulated potassium ion transmission can be realized.

The invention provides an ultrahigh-base-number composite calcium salt detergent, a preparation method thereof and a lubricating oil complexing agent. The preparation method comprises the following steps: mixing solvent oil, base oil, an accelerant A, an accelerant B, sulfonic acid, salicylic acid, first inorganic calcium and an accelerant C for neutralization reaction; carbon dioxide is introduced, second inorganic calcium and water are added for a carbonation reaction, a product is purified after the reaction is finished, and the composite calcium salt detergent is obtained; the accelerant B is selected from a combination of two or more than three of polyisobutylene succinic anhydride, dodecenyl succinic anhydride, polymethacrylate, trimethylolpropane isooctoate, alkylphenol formaldehyde resin and benzylamine. The composite calcium salt detergent disclosed by the invention has the advantages of ultrahigh base number and better thermal stability, and can fundamentally improve the problem of precipitation when calcium sulfonate and calcium salicylate are compounded.

The application discloses a method for synthesizing N-hydroxyethyl methyl benzylamine, and belongs to the technical field of pharmaceutical intermediates. The method comprises the following steps: continuously pumping a mixed solution of N-methyl benzylamine and ethylene carbonate into a micro-channel reactor filled with a bifunctional MOF catalyst UiO-66-NH2; continuously performing a flow catalytic reaction under heating and pressurizing conditions; and achieving a supercritical state of byproduct carbon dioxide in the reaction system; and obtaining N-hydroxyethyl methyl benzylamine after separating the reaction effluent under reduced pressure. The method has high raw material conversion rate, product selectivity and space-time yield.

This invention discloses a liquid crystal polymer copper-clad laminate and its preparation method, relating to the field of liquid crystal polymer technology. The invention involves melt-blending and granulating a liquid crystal polymer, modified polyetheretherketone (PEEK), nanofillers, and a lubricant via twin-screw extrusion, followed by single-screw extrusion casting or blown film production to obtain a thin film, which is then hot-pressed with copper foil to produce the copper-clad laminate. This invention uses fluorinated benzylamine-modified PEEK, utilizing the π-π stacking and van der Waals forces between the fluorinated benzene rings and the liquid crystal polymer to enhance interfacial compatibility, improve melt strength and processing stability, and significantly enhance peel strength. Simultaneously, boron nitride hollow microspheres and diamond powder, after acid treatment, synergistically construct a thermally conductive pathway. The hollow microspheres introduce a trace amount of air to reduce dielectric loss, resulting in a copper-clad laminate that combines high peel strength, excellent thermal conductivity, and low dielectric properties.