793 results about "Epoxide Compound" patented technology

The invention discloses a preparation method of a crown ether functionalized anti-pollution nanofiltration membrane, which comprises the following steps: soaking a membrane of a commercial nanofiltration membrane in pure water, and coating the surface with a double-end epoxy compound ethanol solution; uniformly coating the surface of the membrane with an aza 12-crown-4 methanol solution; and drying the membrane in an atmosphere of 40-90 DEG C to obtain the crown ether functionalized anti-pollution nanofiltration membrane. The nano-filtration membrane is realized by chemically grafting aza 12-crown-4 on the membrane surface of a commercial nano-filtration membrane by utilizing a double-end epoxy compound; compared with a traditional nanofiltration membrane, the crown ether functionalized nanofiltration membrane provided by the invention has the advantages that the electronegativity of the surface is reduced, and the surface is similar to an aquatic plant molecular brush structure, so that the deposition of pollutants on the surface of the membrane can be effectively improved, and the anti-pollution performance of the membrane is enhanced; meanwhile, due to the complexing effect of 12-crown-4 molecules on lithium ions, the lithium ions can be effectively captured, concentration polarization of the lithium ions on the surface of the diaphragm is improved, and then the magnesium-lithium separation efficiency of the diaphragm is improved.

The invention provides a method for synthesizing cyclic carbonate by catalyzing conversion of carbon dioxide with a ZIF-8-coated In2O3 composite material, and belongs to the field of catalytic chemistry. According to the method, carbon dioxide and an epoxy compound are used as raw materials, a ZIF-8-coated In2O3 composite material is used as a catalyst, tetrabutylammonium bromide is used as a cocatalyst, cycloaddition of the epoxy compound and normal-pressure carbon dioxide is performed to synthesize cyclic carbonate, and the ZIF-8-coated In2O3 composite material is prepared by in-situ compounding of ZIF-8 and In2O3 of a hollow prism structure. The ZIF-8-coated In2O3 nano-composite catalyst provided by the invention is simple to prepare, the raw materials are cheap and easy to obtain, the catalytic performance is excellent, and high-selectivity synthesis of cyclic carbonate under mild conditions can be realized. In addition, the catalyst is stable in structure, easy to separate from a product and good in recycling performance, and belongs to an environment-friendly catalyst.

The invention provides highly phase-separated polyurethane as well as a preparation method and application thereof, and belongs to the technical field of high polymer materials. The highly-phase-separated polyurethane is prepared from the following raw materials: hydrophilic modified polyether polyol, an isocyanate monomer, a catalyst and a chain extender, the hydrophilic modified polyether polyol is prepared from the following raw materials: a ring-opening initiator and an epoxy compound; the ring-opening initiator comprises dihydroxy carboxylic acid and / or dihydroxy sulfonate. The highly-phase-separated polyurethane is clear and stable in microphase structure and has excellent mechanical properties and water resistance.

The invention belongs to the field of fluorine-containing fine organic chemical synthesis, and particularly relates to a method for continuously and cleanly producing perfluoroolefin epoxide by using hydrogen peroxide. The invention relates to a method for continuously and cleanly producing perfluoroolefin epoxide by using hydrogen peroxide, which comprises the following steps of: reacting perfluoro-2-methyl-2-pentene serving as a raw material in the presence of a polar solvent and hydrogen peroxide serving as an oxidant under the action of a catalyst to obtain perfluoro-2-methyl-2, 3-epoxypentane. The method has the beneficial effects that the micro-reactor is used, and the oxidizing agent, the catalyst, the cocatalyst and the polar solvent are continuously introduced into the pipeline of the micro-reactor, so that the synthesis from the hexafluoropropylene dimer to the epoxy compound is completed in a short time.

The invention belongs to the technical field of flame-retardant polyether polyol, and particularly relates to a preparation method and application of multi-element synergistic reaction type anti-dripping flame-retardant polyether polyol. The preparation method of the multi-element synergistic reaction type anti-dripping flame-retardant polyether polyol comprises the following steps: taking phosphorus-containing polyether polyol and a nitrogen-containing compound as composite initiators, and carrying out polymerization reaction on the phosphorus-containing polyether polyol and the nitrogen-containing compound and an epoxy compound under the self-catalysis action to obtain the reaction type anti-dripping flame-retardant polyether polyol. According to the preparation method of the multi-element synergistic reaction type anti-dripping flame-retardant polyether polyol provided by the invention, phosphorus, nitrogen and chlorine elements are embedded into the polyether polyol by constructing a ternary synergistic system, so that the problems of poor compatibility, migration and precipitation of an externally added flame-retardant system are solved; in the preparation process, low-cost bio-based phytic acid is adopted as a raw material, no catalyst needs to be introduced, the operation is simple, the prepared polyether polyol is used for preparing a waterborne polyurethane film, the flame-retardant characteristic of the material is improved, and meanwhile, the good anti-dripping characteristic is achieved.

The invention discloses a CO2 epoxy coupling catalyst as well as a preparation method and application thereof. The CO2 epoxy coupling catalyst is prepared by grafting disulfonic ionic liquid on the surface of Zr < 4 + > coordination defect hierarchical pore UiO-66-NH2 and introducing metal halide salt. The preparation method comprises the following steps: S1, preparing and synthesizing Zr < 4 + > coordination defect hierarchical pore UiO-66-NH2; s2, enabling the hierarchical pore UiO-66-NH2 to react and combine with the disulfonic ionic liquid, so as to obtain an ILs (at) UiO-66-NH2 compound; and S3, reacting and combining the ILs-coated UiO-66-NH2 compound with metal halide salt, and drying to obtain the CO2 epoxy coupling catalyst. The CO2 epoxy coupling catalyst can be applied to a coupling reaction of CO2 and an epoxy compound to synthesize cyclic carbonate.

The invention discloses a fluorine-containing super-hydrophobic coating and a preparation process thereof, and relates to the technical field of hydrophobic coatings. The fluorine-containing super-hydrophobic coating is prepared from the following components in parts by mass: 60 to 80 parts of composite fluorine-containing resin, 5 to 15 parts of filler and 5 to 10 parts of curing agent, the composite fluorine-containing resin is obtained by blending epoxy resin and a fluorine-containing esterified epoxy compound. The preparation method comprises the following steps: blending epoxy resin and a fluorine-containing esterified epoxy compound to obtain composite fluorine-containing resin; the low surface energy of a fluorine-containing esterified epoxy compound and the good adhesiveness of epoxy resin are utilized, in the coating curing process, fluorine chain segments migrate to the surface of a coating, the surface energy of the coating is reduced, the epoxy resin is subjected to a cross-linking reaction under the action of a curing agent, and the problem that the adhesive force of the coating is poor is solved; after curing, a tighter and firmer three-dimensional network structure is formed, the cross-linking strength of the coating is improved, and the hydrophobicity and cracking resistance of the coating are comprehensively improved.

The biodegradable PBAT / bamboo charcoal master batch is prepared from the following raw materials in parts by mass: 100 parts of poly (butylene adipate-co-terephthalate) (PBAT), 20 to 30 parts of poly (butylene succinate), 10 to 30 parts of modified bamboo charcoal powder and 0.2 to 0.4 part of chain extender, the modified bamboo charcoal powder is obtained by sequentially carrying out persulfate treatment, microwave-assisted reaction and grafting agent modification on bamboo charcoal powder, and the grafting agent comprises polybasic acid and an epoxy compound. The bamboo charcoal powder is subjected to grafting modification, so that the interfacial compatibility with the PBAT base material and the matrix dispersity are remarkably improved, and the mechanical property of the composite material is improved. The modifier compounded according to a specific ratio improves the damp-heat aging resistance of the master batch composite material.

The invention discloses a thermoplastic epoxy polymer with a micro-cross-linked structure and a preparation method thereof.The preparation method comprises the steps that in the step-by-step polymerization reaction process of thermoplastic epoxy resin, firstly, epoxy or amino or hydroxyl-terminated thermoplastic epoxy resin is obtained by controlling the group molar ratio and the reaction time of raw materials; when the molecular weight of a reaction product reaches a certain degree, polyfunctional epoxy compounds, amines, acid anhydrides, phenols and other compounds are introduced, and the thermoplastic epoxy resin with a micro-crosslinking structure is obtained through chain extension. The glass transition temperature of the thermoplastic epoxy polymer with the micro-crosslinking structure is obviously higher than that of a linear thermoplastic epoxy polymer of the same type. Compared with thermoplastic epoxy polymers of the same type, the thermoplastic epoxy polymer with the micro-crosslinking structure prepared by the invention still has the characteristics of thermoplasticity, capability of being melted by heating, capability of being dissolved by a solvent and the like.

The invention provides an asphalt regenerant, application thereof and a regeneration method of waste asphalt, and belongs to the technical field of pavement materials. The asphalt regenerant comprises the following raw materials in parts by mass: 6-12 parts of an epoxy compound, 0.5-2 parts of an adhesion promoter, 2-5 parts of a curing agent and 83-92 parts of a diluent, wherein the epoxy compound comprises polyurethane modified epoxy resin. According to the invention, the flexible epoxy compound polyurethane modified epoxy resin is introduced and acts together with the curing agent, so that the warm mixing effect of the asphalt regenerant at low temperature (110-115 DEG C) is improved, the regeneration effect can be ensured, and meanwhile, the reinforcing and toughening effects can be achieved through curing of the epoxy group; the high-temperature performance, the low-temperature performance, the water stability and the durability of the recycled asphalt mixture can be effectively improved, and the energy consumption and the carbon emission in the production and construction process can be reduced.

An adhesive composition (100) comprises: a polyester resin (A) that includes an ester bond which bonds repeating units together and one or more functional groups selected from the group consisting of carboxy groups and carboxylic acid anhydride structures; an epoxy compound (B) in the amount of 1-50 parts by mass with respect to 100 parts by mass of the polyester resin (A); and a cyclic carbodiimide (C) in the amount of 0.1-20 parts by mass with respect to 100 parts by mass of the polyester resin (A).

To provide a resin composition capable of improving flowability of the resin composition and crack resistance of a cured product thereof.SOLUTION: A resin composition contains an epoxy compound (A), a liquid aromatic amine compound (B), and an inorganic filler (C). The epoxy compound (A) contains a liquid epoxy compound (A1) and a solid epoxy compound (A2). The solid epoxy compound (A2) contains a solid epoxy resin (a) which is at least one kind selected from a group consisting of an isocyanate modified epoxy resin, a naphthalene type epoxy resin, and a biphenyl type epoxy resin. The viscosity of the resin composition at 25°C is 400 Pa s or less.SELECTED DRAWING: Figure 1

Provided is a conductive polymer solution capable of providing an electrolytic capacitor having high capacity and exhibiting low ESR characteristics. A conductive polymer solution having a pH of 1.5-5.0 is used, the solution containing 0.01-10% by mass of a polythiophene (A) containing at least one type of structural unit selected from the group consisting of structural units represented by general formula (1) and structural units represented by general formula (2), 0.001-20% by mass of an epoxy compound (B) having at least two or more epoxy groups, and water. In general formulae (1) and (2), R2 represents a hydrogen atom, a methyl group, an ethyl group, a C3-6 linear or branched alkyl group, or a fluorine atom, m represents an integer of 1-10, and n represents 0 or 1. ] # imgabs0 #

The invention relates to the field of ion exchange resin, and discloses quaternary ammonium type anion exchange resin, a preparation method and application thereof, and a catalytic hydration reaction method of an epoxy-containing compound. The anion exchange resin comprises a resin matrix # imgabs 0 # and a quaternary ammonium group connected with the resin matrix # imgabs 1 # through an alkylene group; wherein the resin matrix # imgabs2 is a hydrogenated styrene-dienylbenzene copolymer, and the styrene-dienylbenzene copolymer contains a styrene structural unit as shown in a formula (1), a dienylbenzene structural unit as shown in a formula (2), a # imgabs3 # formula (1) and a # imgabs4 # formula (2); in the formula (1), R11 is alkyl or hydrogen, and R12 is alkyl or hydrogen; in the formula (2), n is an integer between 0 and 2. The quaternary ammonium type anion exchange resin provided by the invention has excellent swelling resistance.

The invention discloses a preparation method and application of an efficient migration-resistant hindered phenol antioxidant. The preparation method comprises the following steps: dissolving a hindered phenolic compound and an epoxy compound in a solvent to carry out ring-opening reaction, and then further reacting the carboxyl-activated hindered phenolic compound with a ring-opened product to obtain the novel antioxidant with 4-6 hindered phenolic hydroxyl groups in the structure. According to the novel antioxidant disclosed by the invention, on the basis of fully utilizing the capability of capturing free radicals by hindered phenolic hydroxyl, the oxidation resistance of the antioxidant is improved by changing a para-substituent structure, the migration resistance of the antioxidant is improved by changing the molecular weight and the molecular structure, and the service life of the antioxidant in a high polymer material is prolonged. The novel antioxidant has the advantages of simple process preparation, high efficiency, migration resistance and the like.

The invention discloses a tough and mildew-proof formaldehyde-free soybean protein adhesive as well as a preparation method and application thereof, defatted soybean powder is taken as a main agent, an epoxy compound is taken as a cross-linking agent, polyethyleneimine modified chitosan is used for synthesizing a modifier to prepare the modified soybean protein adhesive, and a compact cross-linked network structure is constructed, so that the toughness and mildew-proof formaldehyde-free soybean protein adhesive is obtained. According to the soybean protein-based adhesive, the performance of the soybean protein-based adhesive is successfully improved, the soybean protein-based adhesive is high in bonding strength, relatively good in water resistance and good in mildew resistance, the production process is simple and convenient, the production cost is greatly reduced, chitosan and polyethyleneimine are subjected to graft modification, the living environment of mildew is destroyed, and the mildew resistance of the soybean protein-based adhesive is improved. The epoxy compound and the chitosan-polyethyleneimine are compounded and cooperated, so that a stable net-shaped cross-linked structure is formed in the adhesive, and the water resistance and the mildew-proof capability of the adhesive are greatly improved.

To provide an anisotropic conductive film which exhibits low temperature quick curability, and good adhesive strength and connection reliability, and can be stably slit in a narrow width.SOLUTION: An anisotropic conductive film has such a structure that a radical-polymerizable conductive particle-containing resin layer is laminated on a radical-polymerizable / anionic polymerizable insulating resin layer. The insulating resin layer contains: a radical polymerization initiator containing a film-formation component containing two kinds of phenoxy resins having different molecular weights, a radical-polymerizable component containing a first acrylic compound, an anionic polymerizable component containing an epoxy-based compound and an organic peroxide having a one-minute half-life temperature of 125°C or lower; and an anionic polymerization curing agent containing an organic acid hydrazide compound having a melting point of 160°C or lower. The conductive particle-containing resin layer contains a radical polymerization initiator containing a film-formation component containing a third phenoxy resin, a radical-polymerizable component containing a second acrylic compound, conductive particles and an organic peroxide having a one-minute half-life temperature of 125°C or lower.SELECTED DRAWING: Figure 1

The invention belongs to the technical field of catalyst preparation, and discloses a double-metal cyanide complex catalyst as well as a preparation method and application thereof. The preparation method comprises the following steps: dispersing a metal precursor in a first solvent to obtain a solution A; dispersing metal cyanide in a second solvent to obtain a solution B; immersing a high-shear mixer into the solution A, dropwise adding the solution B into the solution A for reaction, then adding the solution C for continuous reaction, and filtering to remove filtrate to obtain a precipitate; and carrying out constant-temperature slurrying on the precipitate by using the solution D, and finally carrying out solid-liquid separation to obtain a solid product. At least one of the solution A, the solution B, the solution C or the solution D contains a ligand compound. The double-metal cyanide complex catalyst prepared by the method has the characteristics of short catalytic induction time, narrow molecular weight distribution of prepared polyether polyol and the like when being used for ring-opening polymerization of epoxy compounds.

The invention is applicable to the technical field of polymer biomedical hydrogel materials, and provides a preparation method and application of multifunctional agarose-based particle composite hydrogel based on liquid-liquid phase separation, and the agarose-based particle composite hydrogel is a product formed by introducing microsphere particles into an agarose hydrogel body matrix; the microsphere particles are formed by a prepolymer and sodium lignin sulfonate through phase separation mediated by a composite behavior based on non-covalent interaction; the prepolymer is obtained by carrying out amine-epoxy reaction on an amino compound and an epoxy compound in water. According to the prepared agarose-based particle composite hydrogel, a microsphere particle structure is formed on the surface of an agarose matrix while positively charged amino groups and sodium lignin sulfonate are introduced, so that the multifunctional agarose-based particle composite hydrogel is prepared.

The invention relates to six-membered oxygen heterocyclic lactone, degradable polyether ester and preparation and degradation methods of the six-membered oxygen heterocyclic lactone and the degradable polyether ester, and belongs to the technical field of organic chemistry and high polymer materials. According to the invention, low-cost bulk chemicals such as glycollate, glycollate derivatives, glycollic acid or glycollic acid derivatives and epoxy compounds are used as main raw materials to prepare six-membered oxygen heterocyclic lactones with different structures, and then degradable polyether esters with different structures and properties are prepared. The preparation method provided by the invention has the advantages of easily available raw materials, low cost, simple process and high efficiency, can realize high-efficiency preparation of degradable polyether esters with different structures and properties, and effectively overcomes the problem of lack of diversity and functionality of polyether esters caused by single structure of polyether ester monomers in the prior art.

The invention discloses a preparation method and application of a catalyst based on pyridine ionic liquid, and belongs to the technical field of catalyst preparation. According to the invention, a hydrolysis reaction of a silane coupling agent is utilized to prepare a silicon oxide nanotube containing a pyridine unit, and then a quaternization reaction is carried out to obtain the catalyst based on the pyridine ionic liquid. The catalyst has a high specific surface area and a rich pore channel structure, exposure of active sites and contact of the active sites and reactants are facilitated, and the catalytic rate is increased. Meanwhile, the silicon oxide nanotube contains hydroxyl, and can cooperate with a pyridine ionic liquid site to catalyze a carbon dioxide cycloaddition reaction. The obtained catalyst can catalyze the reaction of carbon dioxide and an epoxy compound to prepare cyclic carbonate under solvent-free and metal-free conditions, and the catalyst is easy to recover and simple in product purification, and has a good application prospect.

The invention discloses a hyperbranched polyether branching agent with an adjustable structure and a preparation method and application thereof.According to the branching agent, 3-butene-1-alcohol serves as an initiator, a hyperbranched skeleton is constructed through anion ring-opening polymerization reaction and diglycidyl ether, then esterification and end capping are conducted through anhydride, and the hyperbranched polyether branching agent with the adjustable structure is obtained. The tail end of the hyperbranched polyether contains vinyl double bonds, and the ester group structure of the hyperbranched polyether can be regulated and controlled. Different diepoxy compounds are selected to control a main chain structure, and different anhydrides are used for regulating and controlling the chemical composition of branched chains, so that accurate design of molecular weight, polarity and number of functional groups of the branching agent is realized. The branching agent has excellent dissolvability in common organic solvents, and solves the problem of poor dissolvability of the traditional polydiene branching agent. When the star-shaped branched butyl rubber is applied to the synthesis of star-shaped branched butyl rubber, the distribution and number of branched points can be accurately regulated and controlled, the weight-average molecular weight and molecular weight distribution index of the rubber are remarkably improved, and the side reaction of gel is avoided.

The present disclosure provides: a method for obtaining a cured body containing an epoxy compound and a resin having an aromatic vinyl group as a functional group; an epoxy resin-based composition and a cured body thereof, having improved low dielectric performance; and an electrically insulating material and the like. The present disclosure provides: a composition that contains an epoxy compound, a resin having an aromatic vinyl group as a functional group, and an active vinyl compound; a cured body of the composition; and an electrically insulating material. The resin having an aromatic vinyl group as a functional group is preferably an olefin-aromatic vinyl compound-aromatic polyene copolymer. The active vinyl compound is preferably one or more compounds selected from the group consisting of a maleimide compound and a cyanate compound.

To provide a resin composition for sealing a semiconductor that can be used to produce a sealing part for sealing a semiconductor element, that allows the sealing part to have a high glass transition point, and that can increase the long-term heat resistance of the sealing part. The resin composition for sealing contains: a maleimide compound (A); an epoxy compound (B) containing an epoxy compound (b1) having a structure represented by formula (1); a phenol compound (C) containing a phenol compound (c1) having a structure represented by formula (2); and an inorganic filler (D). In formula (1), n is a number of from 1 to 5 and m is a number of from 1 to 6. In formula (2), n is a number of from 1 to 5, R is CH3, OH, C6H5, or C6H4OH, and X is a structure represented by formula (21), a structure represented by formula (22), or a structure represented by formula (23).

The invention provides application of a metal ion doped aminated graphene oxide membrane material in catalyzing CO2 to synthesize cyclic carbonate. The metal ion doped aminated graphene oxide membrane material has an acidic catalytic site and an alkaline catalytic site at the same time, and a two-dimensional interlayer channel of the metal ion doped aminated graphene oxide membrane material also has a confinement effect. In the process of catalyzing a CO2 / epoxy compound cycloaddition reaction, epoxy compound molecules entering a two-dimensional interlayer confinement channel of the metal ion doped aminated graphene oxide membrane material are subjected to efficient ring opening under the combined action of organic amine molecules and metal ions and react with CO2; and finally, realizing CO2 high-efficiency (the reaction time is less than or equal to 5 minutes, and the conversion rate of the epoxy compound is 75-100%) synthesis of the cyclic carbonate under the conditions of room temperature and low pressure (greater than 0.1 MPa and less than or equal to 1 MPa).

A resist underlayer film-forming composition in which a coating film having high flattening properties is formed on a substrate. A resist underlayer film-forming composition including an epoxy adduct (C) obtained by reacting an epoxy group-containing compound (A) with an epoxy adduct-forming compound (B), wherein one or both of the epoxy group-containing compound (A) and the epoxy adduct-forming compound (B) contain an optionally branched alkyl group having a carbon atom number of three or more. The epoxy adduct-forming compound (B) is at least one compound selected from the group consisting of carboxylic acid (B1), carboxylic anhydride (B2), a phenol compound (B3), a hydroxyl group-containing compound (B4), a thiol compound (B5), an amino compound (B6), and an imide compound (B7). The optionally branched alkyl group having a carbon atom number of three or more is contained in the epoxy adduct-forming compound (B). The optionally branched alkyl group has a C3-19 alkyl group.

A main purpose of the present disclosure is to provide an adhesive composition which contains a (meth)acrylate having a fluorine-containing organic group and which nevertheless can give cured objects having sufficient adhesion strength and a high infrared-light transmittance.　The adhesive composition comprises a (meth) acrylate compound, an epoxy compound, a crosslinking agent, and a photoacid generator. The (meth) acrylate compound includes a (meth) acrylate having a fluorine-containing organic group. The crosslinking agent includes a (meth)acrylic resin comprising a first structural unit, which is derived from a (meth)acrylate having a fluorine-containing organic group, and a second structural unit, which is derived from a (meth)acrylate having a cyclic ether group.

The invention relates to a gel electrolyte and a preparation method and application thereof. The gel electrolyte is prepared from the following raw materials: a nitrogen heterocyclic gel monomer, an electrolyte and an initiator, the nitrogen heterocyclic gel monomer is prepared from the following raw materials: a nucleophilic reagent and an epoxy compound. The gel electrolyte provided by the invention is high in conductivity and good in uniformity, can realize stable circulation under 5C multiplying power, and can be well applied to a quick-charge type gel battery.

An aspect of the present disclosure relates to a photosensitive resin composition containing (A) an acid-modified vinyl group-containing resin, (B) a thermosetting resin, (C) a photopolymerization initiator, (D) a photopolymerizable compound, and (E) an elastomer, in which (B) the thermosetting resin includes a bisphenol type epoxy compound having an average molecular weight of 360 or less and (E) the elastomer includes an acrylic elastomer.

The invention discloses a preparation method and application of a hyperbranched multi-arm star-shaped epoxy resin emulsifier, and relates to the field of waterborne epoxy emulsions. The preparation method of the hyperbranched multi-arm star-shaped epoxy resin emulsifier comprises the following steps: synthesizing a hyperbranched polyether hydrophobic core containing rich epoxy end groups from a polyhydroxy compound and a polyfunctional epoxy compound, and grafting methoxypolyethylene glycol to the hydrophobic core through hydroxyl epoxy-opening reaction. Compared with a traditional linear emulsifier, the hyperbranched emulsifier has the advantages that abundant active end groups can introduce a large number of hydrophilic chain segments to obtain better emulsifying capacity, sufficient reaction sites can be reserved to participate in curing of a system, and negative effects on a coating due to dissociation of the emulsifier are reduced.