478 results about "Epoxide Compound" patented technology

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 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 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 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).

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.

The invention relates to a preparation method and application of an ethylene sulfite compound, and the preparation method comprises the step of reacting an epoxy compound with sulfur dioxide under the action of an immobilized organic base catalyst to obtain the ethylene sulfite compound. The immobilized organic base catalyst is formed by connecting organic base and chloromethylated resin through chemical bonds, and has good catalytic activity and chemical stability. According to the preparation method provided by the invention, the raw material cost is low, the product is easy to purify, the yield is relatively high, continuous automatic production is easy to realize, and the prepared ethylene sulfite compound is added into the lithium battery electrolyte as an additive, so that the electrochemical window of an electrolyte system can be widened, and the high-voltage interface stability and the cycle performance of the battery can be improved.

The invention relates to the technical field of polycarbonate polyols, and discloses a preparation method of carbon dioxide-based polycarbonate polyols, which comprises the following steps: adding an epoxy compound, a carborane derivative catalyst, a chain initiator and a chain transfer agent into a reactor, introducing carbon dioxide to replace air in the reactor, and reacting to obtain the carbon dioxide-based polycarbonate polyols. Then pressurizing, heating and stirring to carry out polymerization reaction, adding acid to terminate the reaction after the reaction is completed, and then purifying and drying to obtain the polycarbonate polyol, wherein the carborane derivative catalyst is prepared by the following preparation method: adding different substituted alkynes, decaborane, ethyl sulfide and toluene into a reaction flask in proportion in a nitrogen atmosphere, sealing the reaction flask, and heating and stirring to enable the decaborane to react with the different substituted alkynes. According to the method, a specific catalyst is used for replacing a traditional catalyst, and the reaction efficiency and the product molecular weight can be improved.

The invention provides a curable resin composition excellent in curability at low temperature for obtaining a cured product high in heat resistance, a cured product thereof, and methods of producing the curable resin composition and the cured product. Also provided is a semiconductor device using the cured product as a sealant. In particular, the invention provides a curable resin composition comprising (A) a benzoxazine compound represented by a structure of formula (1), (B) an epoxy compound, and (C) a phenol-based curing agent, wherein a number of epoxy groups in the epoxy compound (B), a number of benzoxazine rings in the benzoxazine compound (A), and a number of hydroxyl groups in the phenol-based curing agent (C) satisfy formula (2), and a ratio of the benzoxazine equivalent in the benzoxazine compound (A) to the hydroxyl group equivalent in the phenol-based curing agent (C) is 1.1 to 8.0.

The invention relates to the technical field of biological materials, in particular to collagen gel for injection, a preparation method of the collagen gel and an injection preparation. The method comprises the following steps: providing recombinant humanized collagen subjected to alkali resistance screening, and mixing the recombinant humanized collagen with a stabilizer to prepare a collagen dispersion liquid, which comprises the following steps: activating a cross-linking agent in an alkaline activating solution to obtain an activated cross-linking agent solution; wherein the cross-linking agent is a diepoxide compound; carrying out cross-linking reaction on the activated cross-linking agent solution and the collagen dispersion liquid to form gel; wherein the mass concentration of the collagen dispersion liquid is 5-10%, and the mass ratio of the cross-linking agent to the collagen is 5-10%; the total weight percentage of the collagen and the cross-linking agent is 5.5 to 10.5 percent. The gel with a stable structure can be effectively formed when the content of the cross-linking agent is within the content range, the residual amount of the cross-linking agent is low, and the storage modulus, the swelling degree and the pushing force of the gel are excellent.

The application discloses an alkali ion type covalent organic framework material and a preparation method and application thereof, wherein 2,4,6-tris(4-formylphenyl)-1,3,5-triazine, 1,4-diisocyanobenzene and 2-aminopyridine are used as building units, a covalent organic framework containing pyrimidine is obtained through a condensation reaction, and then a quaternary ammonium reaction and an ion exchange reaction are sequentially performed to obtain the alkali ion type covalent organic framework.The alkali ion type covalent organic framework material prepared by the application has rich alkali sites, developed pore structures and good chemical stability, exhibits good catalytic performance as a catalyst for one-pot preparation of dimethyl carbonate from CO2, an epoxide compound and methanol, and also shows good cycle stability.

A quartz crystal resonator unit that includes: a quartz crystal resonator including an excitation electrode and a connection electrode electrically connected to the excitation electrode; a base member including an electrode pad; an electrically conductive holding member that connects the connection electrode and the electrode pad to each other; and a lid member attached to the base member so as to form an internal space between the lid member and the base member in which the quartz crystal resonator is accommodated. The electrically conductive holding member is a cured product of an electrically conductive adhesive containing (1) a silicone resin as a main component and (2) an epoxy compound having two or more epoxy groups.

The application relates to the technical field of catalysts, and discloses a limited type iodine-based homogeneous immobilized catalyst as well as a preparation method and application thereof. The catalyst comprises a carrier and iodine ions, magnesium ions and quaternary ammonium ions loaded on the carrier, wherein the molar ratio of the magnesium ions, the quaternary ammonium ions, the iodine ions and the carrier is 0.01-1:4-15:1-30:1. The limited type iodine-based homogeneous immobilized catalyst disclosed by the application enhances the electrostatic interaction between iodine ions and quaternary ammonium ions through the molecular sieve limiting effect to construct a limited type structure. The catalyst has significantly enhanced CO2 adsorption and activation capacity, can activate an epoxide compound, and accelerates the ring opening of the epoxide compound. In a cycloaddition reaction catalyzed by the catalyst under the conditions of no solvent and no auxiliary agent, the conversion rate of propylene oxide can reach more than 73%, and the propylene carbonate selectivity can reach more than 85%.

The invention discloses a supercapacitor with a high specific surface area and a preparation method thereof, and relates to the technical field of supercapacitors. Comprising the following steps: performing layer-by-layer cladding forming on TC4 alloy powder to obtain a three-dimensional bionic curved surface structure with Gyandroid topology in a three-period minimal curved surface, and forming a randomly distributed microcosmic columnar bulge structure on the surface of the three-dimensional bionic curved surface structure as a metal current collector; polyaniline is continuously deposited to form a film along the three-dimensional bionic curved surface structure and the surface microcosmic columnar protrusion structure of the three-dimensional bionic curved surface structure in a pulse electrodeposition mode, and a TC4-coated PANI electrode is obtained; the preparation method comprises the following steps: preparing a three-dimensional bionic curved surface structure, performing grafting reaction on polyvinyl alcohol and an epoxy compound containing a quaternary ammonium group under an alkaline condition to prepare a PVA-g-TMAC polymer, preparing a PVA-g-TMAC hydrogel electrolyte, injecting the PVA-g-TMAC hydrogel electrolyte into a mold, arranging two TC4-coated PANI electrodes in the mold according to a preset interval, clamping the three-dimensional bionic curved surface structure, and performing freeze thawing and consolidation to obtain the supercapacitor with a sandwich structure.

The present invention uses a two-pack adhesive composition which is constituted from: a first agent containing at least one non-aromatic epoxy compound selected from among an aliphatic epoxy compound having a hydroxyl group and two or more epoxy groups and a cyclohexene oxide-based epoxy compound, an aromatic epoxy compound, rubber particles and an ionic liquid; and a second agent containing at least one curing agent selected from among an amine-based curing agent having two or more amino groups in the molecule, an acid anhydride-based curing agent, a phenol-based curing agent, a mercaptan-based curing agent and a polysulfide-based curing agent, and in which the ratio of the non-aromatic epoxy compound and the aromatic epoxy compound falls within a certain range.

The present invention addresses the problem of providing: a resin composition that is capable of at least being photocured or being cured at low temperature (for example, 100°C or less) and that provides a cured product that exhibits excellent adhesive strength and high heat-resistance reliability; an adhesive agent or a sealing material that includes the same; a cured product thereof; and a semiconductor device and an electronic component that include the cured product.　Provided are: a resin composition containing (A) an epoxy compound, (B) an oxetane compound, and (C) an acid-generating agent that is a salt of an anion represented by formula (1) (In the formula, R1, R2, R3, and R4 independently represent an alkyl group having 1-18 carbon atoms or an aryl group having 6-14 carbon atoms, provided, however, that at least one of R1, R2, R3, and R4 represents an aryl group having 6-14 carbon atoms.) and of a counter cation, and also satisfying at least one of the following characteristics (a) and (b); an adhesive agent or a sealing material including the same; a cured product thereof; and a semiconductor device and an electronic component including the cured product. (a) (D) A filler is further included. (b) The content of (A) the epoxy compound is 100-1300 parts by weight with respect to 100 pats by weight of (B) the oxetane compound.

The invention relates to new carbon dioxide (CO2) adsorbents based on modified weak base anion exchange resin (WBAER) sorbents comprising a crosslinked polymeric backbone containing appended primary and / or secondary amines. The WBAER materials are insoluble in water and common organic solvents, have surface areas of 5-50 m2 / g, and can be in either bead or powder form. The WBAER materials are suspended in water and / or polar organic solvents and treated with polyfunctional epoxide compounds to effect the modification. The modified materials exhibit significantly improved oxidative stability compared with the unmodified ion-exchange resins without significantly impacting their CO2 uptake capacity or CO2 uptake kinetics. The modified materials remain insoluble in water and common organic solvents and, therefore, are not susceptible to leaching under steam-based or moisture-based sorbent regeneration conditions.

The present invention discloses a PVC / ABS / PC modified material and a preparation method thereof, belonging to the field of polymer material technology. The PVC / ABS / PC modified material comprises the following raw materials in parts by weight: 60-80 parts PVC, 30-40 parts ABS, 10-20 parts modified PC, 5-15 parts plasticizer, 2-5 parts stabilizer, 1-2 parts lubricant, and 1-2 parts antioxidant. The plasticizer is prepared by the following method: S1: bis(2-hydroxyethyl) terephthalate reacts with oleic acid chloride to form a double-chain unsaturated compound; S2: the double-chain unsaturated compound reacts with formic acid and H2O2 to form a diepoxide; S3: the diepoxide reacts with n-octanol to form the plasticizer. The PVC / ABS / PC modified material prepared by the present invention has good tensile properties and impact strength.

The present application provides a photosensitive resin composition, a hardened film, a substrate with a hardened film, and a manufacturing method of a substrate with a hardened film, which can form a resin film pattern having excellent development adhesion, linearity, and resistance to solvents and alkalis, even when a substrate with low heat resistance is used. The photosensitive resin composition of the present application is a photosensitive resin composition for forming a hardened film on a substrate with a heat resistance temperature of 111°C or less, and comprises: (A) an alkali-soluble resin containing an unsaturated group, (B) a photopolymerizable monomer having two or more ethylenic unsaturated bonds, (C) an epoxy compound having two or more 3,1-epoxycyclohexyl groups, (D) a photopolymerization initiator, and (E) a solvent. The content of the (C) component is 5 to 17 mass% relative to the total mass of the solid components.

The present application relates to the technical field of cable, in particular to a kind of anti-aging cable and preparation method thereof.The cable includes conductor, crosslinked polyethylene insulation layer, shielding layer and sheath layer from inside to outside.The sheath layer is prepared by soft polyvinyl chloride resin, butyronitrile rubber, silicon dioxide, silane coupling agent and epoxidized branched modified nano titanium dioxide.Epoxidized branched modified nano titanium dioxide is branched modified nano titanium dioxide by using epoxypropanol and epoxide compound containing naphthalene ring structure, and then modified by epoxidation of epichlorohydrin.Epoxidized branched modified nano titanium dioxide significantly improves the anti-UV aging performance of the cable, reduces the yellowing degree under long-term outdoor exposure conditions, so that the cable has longer service life and higher safety and reliability, and is suitable for various outdoor harsh environments.

To provide an adhesive film which exhibits low temperature quick curability and good adhesive strength and connection reliability, can be narrowly and stably slit, and has good temporary stickiness.SOLUTION: An adhesive film has a base material film subjected to release treatment, and an insulation resin layer which is provided thereon and exhibits radical polymerizability and anion polymerizability, and has a film width of 1.0 mm or less, further 0.8 mm or less, and has a length of 5 m or more. The insulation resin layer contains: a radical polymerization initiator which contains a film-formation component containing two kinds of film components having different molecular weights, a radical polymerizable component containing a first acrylic compound, an anion polymerizable component containing an epoxy-based compound, and an organic peroxide having a one-min half-life temperature of 125°C or lower; and an anion polymerization curing agent which is solid at normal temperature and contains an organic acid hydrazide compound.SELECTED DRAWING: Figure 1A

The application relates to the technical field of CO2 capture, in particular to a CO2 adsorbent and a preparation method and application thereof. The preparation method of the CO2 adsorbent comprises the following steps: impregnating a carrier with an impregnation solution; wherein the impregnation solution comprises an organic amine and an aromatic hydrocarbon polycyclic epoxide compound, the aromatic hydrocarbon polycyclic epoxide compound comprises at least two epoxy functional groups, the aromatic hydrocarbon polycyclic epoxide compound further comprises at least one of benzene rings, biphenyl rings and naphthalene rings, and the carrier has pores; and heating and cross-linking; the organic amine and the aromatic hydrocarbon polycyclic epoxide compound are cross-linked in the pores of the carrier to form a network structure, and the CO2 adsorbent is obtained. The organic amine in the CO2 adsorbent has a network structure, the anti-leaching performance and stability of the network structure organic amine are improved, and the stability of the CO2 adsorbent is enhanced.

The adhesive comprises an epoxy group-containing compound and an acidic phosphorus-containing curing agent. The adhesive gels at a temperature of about 0 DEG C to 50 DEG C, and when mixed with an aliphatic disubstituted epoxy compound and an acidic phosphorus-containing curing agent, for about 10 minutes or less.

This invention belongs to the technical field of concrete crack filling materials, specifically relating to a rapid repair material for concrete cracks, comprising component A and component B. Component A contains liquid bisphenol A epoxy resin, filler, toughening agent, and anti-settling agent; component B includes a curing agent and a diluent. The curing agent is prepared by pre-reacting a polyamine, epoxy compound, and benzyl alcohol, followed by mixing with isocyanate. This invention has found that the synergistic effect of components A and B significantly improves the performance of the rapid repair material for concrete cracks. The research shows that this rapid repair material exhibits rapid strength growth at low temperatures, fast gel time, compressive strength greater than 50 MPa at 2 hours, flexural strength greater than 12 MPa at 24 hours, adhesive strength greater than 3.0 MPa, and the ability to open to traffic after 2 hours, with subsequent slow strength growth.

This invention provides a method for preparing chiral epoxy compounds, chiral β-lactones, and polyhydroxyalkanoates. The method involves three steps: chiral resolution of the epoxy compound, carbonylation of the chiral epoxy compound to prepare a chiral β-lactone, and ring-opening polymerization of the β-lactone. Using this method, polyhydroxyalkanoates with good tensile strength and toughness, as well as a wide processing window, can be prepared. This invention has advantages such as simple steps, low raw material costs, and no need to introduce a second monomer, making it easy to scale up production.

The invention provides a method for preparing an epoxy compound from cycloolefin. The invention specifically provides a preparation method of a compound as shown in a formula II, which comprises the following step: in an organic solvent, under the action of hexafluoroacetone, carrying out oxidation reaction on a cycloolefin compound as shown in a formula I and hydrogen peroxide to obtain the compound as shown in the formula II. The method provided by the invention is mild in condition and good in selectivity, and has a relatively good application prospect.

An epoxy resin represented by the following formula (1), in which in a total amount of an epoxy compound represented by n=1 in the epoxy resin of the above formula, a total content of an epoxy compound represented by the following formula (2) and an epoxy compound represented by the following formula (3) is 1 area % or more and less than 70 area % in HPLC area percentage.

The invention discloses a flame-retardant CO2-based polyurethane solid polymer electrolyte and a preparation method thereof, and belongs to the technical field of lithium ion batteries and the technical field of flame-retardant polymer electrolytes. According to the invention, CO2, the epoxy compound, diamine and the functionalized ionic liquid are taken as raw materials, flame-retardant CO2-based polyurethane is synthesized in one step, the flame-retardant CO2-based polyurethane is compounded with the lithium salt to obtain the polyurethane solid electrolyte with flame retardance and conductivity, and the safety of the battery under the condition of thermal runaway is effectively improved. By adjusting the structure and proportion of the raw materials, the processability of the polymer and the interfacial compatibility of the solid electrolyte are improved.

The application discloses a polymer crosslinking system with a siloxane structure for deep profile control. A preparation method of the polymer crosslinking system for deep profile control comprises the following steps: S1, in an inert atmosphere, under the condition that an initiator exists, performing a polymerization reaction on nonionic monomers, anionic monomers and an epoxy monomer in water to obtain an epoxy polymer; S2, in an inert atmosphere, performing a grafting reaction on polyethyleneimine, an epoxy compound-1 and an epoxy compound-2 in an organic solvent to obtain a silicon-containing polymer; and S3, performing a crosslinking reaction on the epoxy polymer and the silicon-containing polymer in water to obtain the polymer crosslinking system. The polymer crosslinking system has certain delayed crosslinking characteristics and excellent temperature resistance and salt resistance.

A two-component (2K) composition comprising: a first component comprising: a) at least one liquid polyglycidyl ether of a polyhydric phenol, said polyglycidyl ether being characterized by a viscosity of from 100 to 5000 mPa.s; and, b) at least one liquid epoxide compound which acts as a diluent for said part a); and, a second component comprising: c) a curative comprising at least two compounds which each possess at least two epoxide reactive groups per molecule, wherein said curative comprises: ci) at least one cycloaliphatic polyamine; and, cii) at least one acyclic polyamine having a tertiary amine group and at least two amine groups chosen from primary amine groups, secondary amine groups and combinations thereof; wherein the composition further comprises d) thermally conductive filler; and, wherein the composition is characterized by a molar ratio of epoxide-reactive groups to epoxide groups from 0.95:1 to 1.5: 1.