174 results about "Aliphatic amine" patented technology

The invention discloses a low-temperature fast-curing two-component resin adhesive and a preparation method thereof, and belongs to the technical field of high polymer materials. The resin adhesive is formed by mixing a component A and a component B, the component A comprises epoxy-acrylate hybrid resin, a reactive diluent, a nano reinforcing filler and the like, and the component B comprises a modified aliphatic amine curing agent, a microcapsule low-temperature efficient accelerant, a Mannich base curing agent and the like. Through the synergistic effect of a quaternary curing system and in combination with the rigid-flexible balance design of the hybrid resin, rapid curing at low temperature is achieved, and high strength, high toughness and good storage stability are achieved. The resin adhesive is suitable for the fields of bonding of automobile parts, packaging of electronic elements, repairing of wind power blades, sealing of building structures and the like, and particularly solves the problems that a traditional resin adhesive is slow in low-temperature curing and insufficient in performance.

The invention relates to the technical field of epoxy AB adhesives, in particular to a special epoxy AB adhesive for a back mesh as well as a preparation method and application of the special epoxy AB adhesive for the back mesh, and the epoxy A adhesive is prepared from the following components in percentage by weight: a component A: 40-60% of bisphenol A epoxy resin; 10-20% of carboxyl-terminated nitrile rubber; 5%-10% of nano SiO2; 1-3% of a silane coupling agent; 5-10% of a reactive diluent; 3-8% of a plasticizer; the component B comprises 50-70% of a fatty amine curing agent; 10-20% of polyether amine; 1-3% of an accelerant; and 10-20% of nano calcium carbonate. Through an interpenetrating network structure formed by the carboxyl-terminated nitrile rubber and the epoxy resin, the peel strength of the adhesive reaches 15-20 N / mm and is improved by 50% or above compared with that of traditional epoxy glue, the peeling stress between a back mesh material and a matrix can be effectively resisted, and the stability and reliability of the structure are ensured.

The present disclosure discloses a molybdenum amine complex catalyst and a preparation method and use thereof, wherein, the method for preparing the molybdenum amine complex catalyst comprises the following steps: in the presence of a dispersion medium hydrocarbon oil, reacting a hexavalent molybdenum compound with at least one aliphatic amine compound having C4 or more carbon atoms to obtain an active metal catalyst precursor, and uniformly dispersing the active metal catalyst precursor in the dispersion medium hydrocarbon oil to obtain the molybdenum amine complex catalyst. When the molybdenum amine complex catalyst of the present disclosure is applied to the direct coal liquefaction reaction, it can significantly improve the conversion rate of coal and the conversion rate of asphaltene and preasphaltene to oil, allowing the required reaction pressure to be significantly reduced while achieving an oil yield comparable to that of the iron-based catalyst.

The invention provides a catalytic material, a preparation method thereof and application of the catalytic material in high-purity ethyl aliphatic amine, and belongs to the technical field of fine chemical engineering. The catalytic material provided by the invention has a porous structure, so that the specific surface area of the catalytic material can be remarkably increased, more active sites can be used for contact between reaction raw materials and a catalyst, the reaction process is accelerated, meanwhile, the retention time of the reaction raw materials on the surface of the catalyst is prolonged by the porous structure, and the conversion rate of the reaction raw materials (liquid ammonia) is further improved; active components are loaded on the surface of the AB2O4 type porous composite transition metal oxide, so that the number of active sites can be further increased, and the conversion rate of liquid ammonia is further improved. Results of the embodiment show that when the catalytic material provided by the invention is used for preparing ethyl aliphatic amine by an ethanol catalytic amination method, the conversion rate of liquid ammonia is 95% or above.

The invention relates to the field of benzoxazine, in particular to modified benzoxazine resin and a preparation method and application thereof.The preparation method of the modified benzoxazine resin comprises the following steps that S1, first-stage reaction is conducted, specifically, an alkane amine compound, formaldehyde and an organic solvent are stirred to be uniform and heated to react; the alkane amine type compound is one or more of short aliphatic chain amine, alicyclic polyamine and a monoamine type compound; s2, second-stage reaction: adding a phenolic compound containing unsaturated alkyl, and heating for reaction; s3, heating, and removing small molecular impurities and by-products under negative pressure to obtain the modified benzoxazine resin, the modified benzoxazine resin and the preparation method and application thereof solve the problem that the existing benzoxazine resin is insufficient in storage stability and processing performance while improving the dielectric property.

The invention relates to a preparation method of an aliphatic amine polyester ether surfactant and a compound ionic oil-displacing agent thereof, and relates to the technical field of oil field chemicals, the preparation method comprises the following steps: taking aliphatic amine as a raw material, and carrying out ring opening polymerization on the aliphatic amine and ethylene carbonate at a certain temperature under the action of a catalyst to prepare an aliphatic amine polyester ether nonionic surfactant; and compounding the fatty amine polyester ether nonionic surfactant with an anionic surfactant, a cationic surfactant, a phase solvent and water according to a certain proportion to prepare the composite ionic oil displacement agent. The fatty amine polyester ether and the composite ionic oil-displacing agent thereof are superior to a single naphthenic acid amide polyether ester sulfonate anionic oil-displacing agent in the aspects of synergistic effect, stability, salt resistance, hard water resistance, adsorption resistance, interfacial tension stability and binary system oil-displacing performance.

Provided are a novel organic compound and a light-emitting device using the same. In general formula (G1-1), Z1 represents carbon or nitrogen, and if Z1 is carbon, hydrogen (including deuterium) is contained. R1 to R9 each independently represent any one of hydrogen (including deuterium), an alkyl group having 1 to 10 carbon atoms, an alkoxy group having 1 to 10 carbon atoms, a silicon group having 1 to 20 carbon atoms, a substituted or unsubstituted aryl group having 6 to 30 carbon atoms, a substituted or unsubstituted heteroaryl group having 1 to 30 carbon atoms, a cyano group, and an aliphatic amine group represented by general formula (g1); at least one of R1 to R3 and at least one of R4 to R6 represent a group represented by general formula (g2).

To provide a fiber-reinforced composite material that possesses excellent impact resistance and tensile properties, and a molding material for obtaining the same. [Solution] A molding material comprising an epoxy resin composition containing the following components [A] and [B], and carbon fibers satisfying the following condition [a]. [A]: Bifunctional aniline epoxy resin [B]: Aliphatic amine curing agent [a]: Surface specific oxygen concentration O / C is 0.02 or higher and less than 0.08.

The invention relates to injectable cross-linked collagen gel and a preparation method thereof. Two crosslinking strategies of self-crosslinking and crosslinking agent crosslinking are fused together for the first time, and two types of amido bonds, namely amido bonds of a collagen-collagen structure (A) and amido bonds of a collagen-fatty amine-collagen structure (B), are respectively constructed through two crosslinking paths, namely catalysis of collagen polypeptide self-crosslinking and catalysis of fatty amine crosslinking, so that a hard / soft dual crosslinking network is obtained. The relative proportion of the structure A and the structure B in the final product is adjusted through a proper cross-linking process, so that the strength and the stability of the final product are adjusted and controlled, and the use requirements of different injection parts can be met.

The invention provides a heat-conducting adhesive, a heat-conducting bonding layer and a new energy automobile power battery comprising the heat-conducting bonding layer. The thermally conductive adhesive comprises: 40-55 wt% of an epoxy resin; 5-12 wt% of a curing agent, wherein the curing agent is one or more of an aliphatic amine curing agent and an imidazole curing agent; 10-25 wt% of a thermally conductive filler; 3-8 wt% of a toughening agent; 2-6 wt% of a flame retardant; 1-3 wt% of a coupling agent; 0.5 to 2 wt% of an anti-aging agent; and an organic solvent. An adhesive layer formed by curing the heat-conducting adhesive has good mechanical strength and flexibility, can bear loads such as impact and vibration, resists thermal cycling and damp-heat aging, is good in heat conductivity and good in insulating property, is suitable for a new energy automobile power battery, and is particularly suitable for a CTP structure.

The application discloses a kind of preparation of thin-layer Ti-MWW titanium silicalite and its application in epoxidation reaction, belong to inorganic chemical synthesis technical field.The application adds polycyclic aliphatic amine in the synthesis process of Ti-MWW molecular sieve, and reduces the crystallization temperature in the early stage of molecular sieve crystallization to delay the growth rate of molecular sieve C axis, obtain shorter C axis thin-layer Ti-MWW, greatly improve the diffusion performance of Ti-MWW molecular sieve by this method, increase the diffusion rate of reactant molecules in channel, so that the catalytic performance of molecular sieve is greatly improved, suitable for catalyzing propylene, butylene, hexene, cyclohexene, octene liquid phase epoxidation and the like.

The invention discloses a low-dielectric epoxy resin curing agent and a preparation method thereof, and belongs to the technical field of curing agent preparation, the low-dielectric epoxy resin curing agent comprises the following components: aliphatic amine, alicyclic amine, hexahydrophthalic anhydride, a low-dielectric additive and a diluent; according to the method, a homogenization treatment process aiming at a nano material in the low-dielectric additive is arranged in the method, so that the dispersion uniformity of particles of a mixed material can be effectively ensured, agglomeration is avoided, and the subsequent mixing effect of the material can be effectively ensured; according to the present invention, the reduced pressure distillation treatment can be performed on the mixture, such that the purity of the mixture can be substantially improved so as to ensure that the product meets the established quality standard and the performance requirement, and the production of the product with characteristics of excellent appearance, excellent function and excellent service life can be easily achieved; and the final quality of finished products is guaranteed, and defective products can be removed easily.

The invention relates to a two-component thermally conductive composition comprising: a composition (A) comprising: a silylated polymer, and a rheology agent (r1) selected from amide waxes and / or a rheology agent (r2) comprising: from 1% to 40% by weight of a bis-urea (a) obtained by reacting a primary aliphatic amine with a diisocyanate of molar mass less than 500 g / mol, relative to the total weight of the rheology agent (r2), and from 60% to 99% by weight of a specific plasticizer (b), relative to the total weight of the rheology agent (r2), said rheology agent (r2) being in the form of a suspension of solid particles of the bis-urea (a) in a continuous phase of plasticizer (b), and a composition (B) comprising: at least 1% by weight of a filler (C) relative to the total weight of the composition (B), the filler (C) contributing at least 0.0025% by weight of moisture relative to the total weight of the composition (B),Composition (A) and / or composition (B) further comprising at least one thermally conductive filler. The invention also relates to the use of a filler (C) having a specific moisture content for crosslinking, without the addition of free water, a two-component composition, the two-component composition comprising a composition (A) comprising a silylated polymer, and a composition (B) comprising said filler (C). Figure for the abstract: none.

The invention relates to the technical field of composite materials, in particular to a synergistic flame-retardant epoxy resin-based porous sound insulation composite material and application thereof. The raw materials comprise 100 parts of bisphenol A epoxy resin, 15 parts of an aliphatic amine curing agent, 12 parts of ammonium dihydrogen phosphate, 6 parts of melamine, 4 parts of nano silicon dioxide, 5 parts of sodium chloride, 2 parts of ammonium bicarbonate, 0.8 part of carbon nanotubes and 0.5 part of a silane coupling agent. The synergistic flame-retardant epoxy resin-based porous sound-insulation composite material provided by the invention effectively solves the technical bottleneck that the flame-retardant, sound-insulation and mechanical properties of an epoxy resin-based material in the prior art are difficult to synergistically improve, and has remarkable beneficial effects in multiple aspects.

The invention discloses a waste textile / plastic-based water-based wood adhesive and a preparation method thereof. Aliphatic amine is adopted to chemically degrade waste textiles / plastics in a solvent-free manner, and all components are prepared into the water-based wood adhesive by using aminolysis products. The waste textile / plastic-based wood adhesive prepared by the invention is environment-friendly, and has good bonding performance, weather resistance and chemical resistance.

The invention relates to the technical field of pavement materials, in particular to a pavement modifier and a preparation method thereof. The weight ratio of a component A to a component B in the modifier is 1: (0.75-0.9); the component A comprises the following components in parts by weight: 100 parts of polyurethane modified epoxy resin and 4-7 parts of an epoxy active diluent, and the component B comprises the following components in parts by weight: 6-10 parts of an accelerant, 80-90 parts of a composite curing agent and 5-8 parts of a diluent; in the composite curing agent, the weight ratio of the organic silicon amine curing agent to the aliphatic amine curing agent is (1-2): 1; the organic silicon amine curing agent is obtained by taking tris (2-aminoethyl) amine, hexamethylene diisocyanate and 1, 3-bis (3-aminopropyl)-1, 1, 3, 3-tetramethyldisiloxane as raw materials and reacting according to a molar ratio of 1: 3: 3. The modifier disclosed by the invention is good in toughness and high in strength, can effectively improve the low-temperature performance, flame retardance and stability of asphalt, and meets specific construction requirements.

The invention relates to long-life turbine oil for an ammonia-resistant turboset and a preparation process of the long-life turbine oil. The complexing agent comprises an antioxidant, an anti-rust agent, an anti-wear reagent at extreme pressure, a metal deactivator, a demulsifier, an alkali-resistant stabilizer and base oil, the antioxidant comprises at least two of dinonyl diphenylamine, beta-(3, 5-di-tert-butyl-4-hydroxyphenyl) isooctyl propionate and dialkyl dithiocarbamate, the demulsifier comprises at least two of dialkyl dithiocarbamate, and the alkali-resistant stabilizer comprises at least two of dialkyl dithiocarbamate. The anti-wear reagent at extreme pressure comprises at least two of tricresyl phosphate, thiophosphate and amine salt derivatives thereof, and phosphate and amine salt derivatives thereof, and the alkali-resistant stabilizer comprises polycarboxylic polyether and aliphatic amines. The preparation method comprises the following steps: sequentially adding the components, heating, stirring, mixing at constant temperature, cooling and filtering.

The invention discloses a compound having anti-cancer activity and having a structural formula I or a pharmaceutically acceptable salt thereof: # imgabs0 #, wherein W is selected from the group consisting of substituted saturated / unsaturated branched / linear aliphatic amines, substituted aromatic amines, unsubstituted saturated / unsaturated branched / linear aliphatic amines, and unsubstituted aromatic amines; x is selected from the group consisting of H, a substituted / unsubstituted saturated / unsaturated branched / linear aliphatic alkyl group having at least one carbon atom, a substituted / unsubstituted saturated / unsaturated branched / linear aliphatic alkoxy group having at least one carbon atom, a substituted / unsubstituted aryl group, a substituted / unsubstituted aryloxy group; y is selected from the group consisting of H, a substituted / unsubstituted saturated / unsaturated branched / linear aliphatic alkyl group bonded to a carbonyl group, and a substituted / unsubstituted aryl group bonded to a carbonyl group; z is selected from a group comprising H and OH.

The application relates to the technical field of paint, in particular to a two-component epoxy strong-acid-and-strong-base-resistant heavy-duty paint and a preparation method thereof, which comprises a main paint and a curing agent, the main paint contains a compounded system of bisphenol A epoxy resin and bisphenol F epoxy resin, a composite diluent, a functional filler synergized by flaky glass flake and spherical filler, a silane coupling agent and a special anti-rust pigment; the curing agent is compounded by polyamide, phenolic amine, modified alicyclic amine and modified aliphatic amine, the paint has high solid content and low VOC, has strong adhesion to various substrates, has a bottom-surface-combined function in a single coating layer, is resistant to strong acid, strong base and extreme corrosive environment, is simple to construct, is fast to cure and has a long service life.

The invention discloses a method for preparing fatty tertiary amine with large steric hindrance without an external hydrogen source, and the specific implementation process is as follows: taking a compound A and a compound B as raw materials, and efficiently synthesizing a compound C through a hydrogen borrowing and reducing process of a copper-manganese bimetallic catalyst in a nitrogen atmosphere. The catalyst is prepared by adopting a step-by-step impregnation method: firstly, loading a manganese precursor on a carrier, and drying and roasting to form a manganese species which has the function of pre-adsorbing and fixing large-steric-hindrance amine molecules so as to effectively reduce steric hindrance; and then a copper precursor is loaded, and a manganese auxiliary agent promotes high dispersion of a copper active center, so that a C-OH bond of alcohol is efficiently activated. The method is mild in reaction condition, only water serves as a byproduct, the defects that high-risk reagents and high-temperature and high-pressure hydrogen sources are used and waste is generated in a traditional method are overcome, and the method has the advantages of being high in selectivity, good in atom economy, environmentally friendly, safe and the like and is suitable for large-scale production of drug intermediates and functional chemicals.

This invention relates to a modified fatty amine curing agent soluble in acrylic adhesives and its preparation method. The preparation method is as follows: polyetheramine and bismaleimide are added to a flask, a first mixed solvent is added to dissolve them, and the mixture is stirred in a water bath at a certain temperature for a period of time. Then, dodecylamine is added, and the mixture is stirred and reacted again at the above temperature for another period of time. Then, a second mixed solvent is added to achieve a certain solid content, and the mixture is stirred evenly to obtain the modified fatty amine curing agent. The mixture is then bottled, sealed, and refrigerated. The modified fatty amine curing agent soluble in acrylic adhesives of this invention has good high-temperature resistance, low polarity, and flexibility, and also exhibits good compatibility with acrylic adhesives.

A method for preparing an organic solvent nanofiltration membrane with a rigid-flexible dual-network IPN belongs to the field of membrane separation technology. The method includes: 1) dissolving aminated carbon quantum dots or triterpenoid amines containing a twisted structure and aromatic diacyl chlorides to obtain aqueous and oil-phase monomer solutions; using an ultrafiltration membrane as a support, the support is sequentially impregnated with the aqueous and oil-phase monomer solutions to construct a molecular layer with a porous rigid network I structure; 2) preparing organic solutions using an aliphatic amine as the first monomer and an aliphatic acyl chloride as the second monomer; immersing the support containing the porous rigid network I in the first monomer solution, then removing and washing it; then immersing the substrate in the second monomer solution, then removing and washing it, repeating this cycle a certain number of times, followed by heat treatment of the substrate to finally obtain the organic solvent nanofiltration membrane. The above preparation method produces a solvent-resistant nanofiltration membrane with high solvent flux, high separation accuracy, and strong long-term service stability.

The application discloses a kind of hard carbon negative electrode material and its preparation method, application and sodium ion battery.The preparation method of the hard carbon negative electrode material includes the following steps: (1) the mixture of phenolic compound, aldehyde compound and amine compound is heat treated, and resin solution is prepared;Among them, amine compound is aliphatic amine;The molar ratio of phenolic compound and aldehyde compound is 1:(1-3);The molar ratio of phenolic compound and amine compound is 1:(0.2-3);(2) the resin solution is spray dried, carbonized, and the hard carbon negative electrode material is prepared;Carbonization includes first carbonization and second carbonization.The hard carbon negative electrode material prepared by the application has a regular microstructure, is rich in nitrogen elements, has a suitable pore size distribution and specific surface area, and has excellent electrochemical performance when applied to batteries;Meanwhile, the process preparation method can realize in-situ doping of nitrogen elements, the preparation process is simple, can realize large-scale production, and has good industrial application prospect.

Disclosed is a novel room-temperature curable bio-based epoxy vitrimer with a simple design of the chemical structure. A hempseed oil-derived glycidyl ester type epoxy (HOEP) was synthesized and then blended with a bisphenol A epoxy (DER331) to manipulate the properties of the resulting vitrimer s. An aliphatic amine hardener, diethylenetriamine (DETA), was selected as hardener to realize the room temperature curing in presence of triethanolamine (TEOA) as the catalyst. Unlike the traditional glycidyl ether epoxy-amine the thermosets which are based on sable C—N and ether linkages, the epoxy vitrimer herein includes ester bonds with HOEP and hydroxyls formed from the reaction of amine and epoxy in its cross-linked network. Dynamic transesterification (DTER) between the ester bonds and hydroxyls take place at elevated temperatures, imparting the vitrimer significant stress relaxation behavior and repairability. This provided a viable method to produce room temperature curable epoxy vitrimer s.

The invention discloses stretchable low-temperature silver paste suitable for a flexible circuit and a preparation method of the stretchable low-temperature silver paste. The conductive silver paste comprises the following components in parts by weight: 5-15 parts of elastomer rubber, 20-35 parts of an organic solvent, 1.5-5 parts of a curing agent, 1.5-3 parts of a functional aid and 50-70 parts of modified silver powder, wherein the elastomer rubber is ternary ethylene acrylate rubber; the curing agent is a combination of an aliphatic amine curing agent and a polyether polyamine curing agent. The silver paste has the advantages that the silver paste has good adhesive force to a base material while achieving 200% stretch rate, the adhesive force and conductivity are kept stable after stretching, and the problem that existing silver paste cannot achieve stretching and good adhesive force at the same time is solved; tensile fracture caused by uneven distribution of silver paste components is avoided, and the conductivity is improved; the formula is reasonable, so that the silver paste has the characteristic of high flexibility, is good in adhesive force with a flexible substrate, can resist repeated deformation at the stretching rate of 200%, and keeps stable conductivity.

The application discloses a latent aliphatic amide curing agent, a preparation method thereof and application thereof. The latent aliphatic amide curing agent is obtained through an amidation reaction of an aliphatic amine compound and a formyl carboxylic acid compound. The secondary amine group in the latent curing agent obtained by the application does not react with an epoxy resin at a low temperature due to the influence of steric hindrance, and has latency. The latent modified aliphatic amine curing agent prepared by the application is a flowable liquid at normal temperature, and can be used in combination with a traditional solid powder type latent curing agent, thereby improving the poor miscibility of the solid powder type latent curing agent with the epoxy resin.

The invention discloses a synthesis method of pyrido [3, 2-c] coumarin compounds, and belongs to the technical field of organic synthesis. According to the technical scheme, the method is characterized by comprising the following steps: dissolving an aromatic aldehyde compound, a 4-amino coumarin compound and a tertiary aliphatic amine compound in a solvent, adding an oxidant, and reacting at 120-140 DEG C to obtain the target product pyridino [3, 2-c] coumarin compound. The synthesis process is simple and efficient, the pyrido [3, 2-c] coumarin compound is directly prepared in one step through one-pot cascade reaction, no catalyst or additive is needed in the synthesis process, heating is only needed under the air condition, operation is convenient, raw materials are simple, the reaction condition is mild, and the substrate application range is wide.

The present invention provides compounds of structural formula I: TIFF2026500301000012.tif40159 or a pharmaceutically acceptable salt thereof; where W is selected from the group consisting of substituted saturated / unsaturated branched / straight chain aliphatic amines, substituted aromatic amines, unsubstituted saturated / unsaturated branched / straight chain aliphatic amines, unsubstituted aromatic amines; X is selected from the group consisting of H, a substituted / unsubstituted saturated / unsaturated branched / straight-chain aliphatic alkyl group having at least one carbon atom, a substituted / unsubstituted saturated / unsaturated branched / straight-chain aliphatic alkoxy group having at least one carbon atom, a substituted / unsubstituted aryl group, a substituted / unsubstituted aryloxy group; Y is selected from the group consisting of H, substituted / unsubstituted saturated / unsaturated branched / straight chain aliphatic alkyl groups bonded to a carbonyl group, substituted / unsubstituted aryl groups bonded to a carbonyl group; Z is selected from groups including H and OH.

A multicomponent composition, which is especially suitable for a floor coating, includes a curing component comprising at least one amine functional adduct, which is a reaction product of (a) at least one polyether amine, (b) at least one polyalkylene amine, (c) at least one arylaliphatic or cycloaliphatic amine, (d) at least one polyether epoxy resin, and (e) at least one aromatic liquid epoxy resin. The composition allows an aesthetically pleasing appearance (visual appearance, surface characteristics), good processability and levelling.

The present invention provides a collector composition, a collector and its application. The collector composition comprises, in molar percentage, 75-85% of aliphatic amine and 15-25% of aliphatic sulfate, wherein the carbon chain length of the aliphatic amine is C 10 ~C 22 The carbon chain length of aliphatic sulfate is C 10 ~C 20 . will include carbon chain length C 10 ~C 22 The fatty amine with carbon chain length C 10 ~C 20 The collector obtained by mixing components of aliphatic sulfates with the above-mentioned carbon chain lengths improves the collector's flotation capture efficiency for minerals. The preferred fatty amines and preferred aliphatic sulfates with the above-mentioned carbon chain lengths increase the collector's adsorption capacity at the bubble / flotation liquid interface. When the above collector is used in potassium chloride forward flotation, it also achieves a high potassium chloride flotation yield while significantly reducing costs. The collector also exhibits excellent low-temperature resistance, and the resulting potassium chloride product has a high purity.