27 results about "Phenylglycidyl ether" patented technology

The invention discloses a single-component high-heat-resistance type epoxy adhesive and a preparation method of the single-component high-heat-resistance type epoxy adhesive. The adhesive is prepared from the following components in parts by weight: 30 to 40 parts of N, N-4, 4 '-diphenylmethane bismaleimide; 50 parts of bisphenol F epoxy resin; 36.47 parts of 4, 4 '-diaminodiphenyl sulfone; 20 to 40 phr of phenyl glycidyl ether; 1 to 2 phr of two terminal type epoxy silicone oil; 4 to 6 phr of hydroxyl-terminated polyether sulfone; 10 to 20 phr of boron nitride, the surface of which is modified by gamma-glycidyl ether oxypropyl trimethoxy silane; and 1 to 3 phr of an adhesion promoter. According to the adhesive disclosed by the invention, the heat resistance, the mechanical property, the dimensional stability, the process adaptability and the like are synergistically improved, the use requirements of an aviation structural part on long-term service at 150-180 DEG C and an electronic packaging device on the condition of short-time reflow soldering at about 200 DEG C can be met, and the reliability of the adhesive in a high-temperature environment is remarkably improved.

The invention relates to low-viscosity high-strength two-component epoxy winding resin and a preparation method and application thereof, the resin comprises a component A and a component B, and the mass ratio of the component A to the component B is 100: (80-110); the component A consists of the following raw materials in percentage by mass: 70-85% of modified epoxy resin, 14-20% of a functional reactive diluent and 1-10% of an impregnating compound; the modified epoxy resin is formed by compounding bisphenol A epoxy resin and polyether modified epoxy resin, and the functional active diluent is formed by compounding 1, 6-hexanediol diglycidyl ether and phenyl glycidyl ether; the component B is prepared from the following raw materials in percentage by mass: 85-96% of a composite anhydride curing agent, 2.5-10% of a high-efficiency accelerant and 1.5-5% of a defoaming agent; the composite anhydride curing agent is compounded by methyl tetrahydrophthalic anhydride and succinic anhydride, the efficient accelerant is compounded by imidazole and phosphine, and the defoaming agent is an organic silicon defoaming agent.

The invention relates to a composition for a suspension chain modified PSE elastomer, the suspension chain modified PSE elastomer and a preparation method of the suspension chain modified PSE elastomer, and belongs to the technical field of high polymer material science and engineering. The composition is prepared from 55 to 75 weight percent of PUSH resin, 14 to 25 weight percent of bisphenol A epoxy resin, 0.3 to 1 weight percent of accelerant and 10 to 25 weight percent of draping chain compound, the drape chain compound is selected from at least one of phenyl glycidyl ether, C12 to C14 glycidyl ether and cardanol glycidyl ether; wherein the PUSH resin is obtained by polymerizing isocyanate, a combination A and 2, 2 '-(1, 2-ethanedioxy) diethanethiol according to a molar ratio of 1: (0.4-0.6): (0.9-1.1), and the combination A is prepared from polypropylene glycol and polyether triol according to a molar ratio of 1: (0.3-4). The overhanging chain modified PSE elastomer provided by the invention has excellent comprehensive damping performance and especially has a wider damping temperature range.

This invention relates to the field of resin technology, specifically to an epoxy resin composition for copper-clad laminates and its preparation method. The epoxy resin composition comprises, by weight, 500-700 parts of bisphenol A type epoxy resin, 50-70 parts of phenyl glycidyl ether, 30-50 parts of dodecyl glycidyl ether, 20-40 parts of dicyandiamide, 3-7 parts of 2-ethyl-4-methylimidazole, 800-1000 parts of modified spherical silica filler, and a solvent. The key lies in the partial end-capping of the silica surface, followed by the sequential construction of a bimodal siloxane brush layer, a reactive layer with epoxy functional groups, and a fluorinated brush layer. Then, an epoxy ring-opening anchoring aminopropyl isobutyl polysilsesquioxane cage and an aminopropyl-terminated polydimethylsiloxane are used, followed by final end-capping. This composition effectively solves the problems of poor filler dispersibility and high interfacial polarity under high filler conditions, significantly reduces dielectric loss, and improves electrical performance stability and lamination density under humid and hot environments.

Copolymers comprising recurring units of a phenyl glycidyl ether and alkylene oxides are disclosed. Some of the copolymers comprise a di- or polyfunctional nucleophilic initiator and recurring units of the phenyl glycidyl ether and an alkylene oxide. The di- or polyfunctional nucleophilic initiator is an alcohol, phenol, amine, thiol, thiophenol, sulfinic acid, or deprotonated species thereof. Other copolymers comprise a monofunctional nucleophilic initiator selected from thiols, thiophenols, aralkylated phenols, sulfinic acids, secondary amines, C10-C20 terpene alcohols, and deprotonated species thereof. Pigments dispersions comprising the copolymers are also disclosed. The copolymers meet the growing needs of the industry with their ease of manufacture, diverse structures, and desirable performance attributes for dispersing a wide range of organic and inorganic pigments. Agricultural applications for the copolymers are also disclosed.

The invention belongs to the field of functional polymers, and particularly relates to a high-toughness, repairable, recoverable and flame-retardant epoxy vitrimer and a composite material thereof. The epoxy vitrimer is obtained by reacting dithio-diphenyl diglycidyl ether, bisphenol A diglycidyl ether, isocyanuric acid tri [2-(3-mercaptopropionyloxy) ethyl ester] and dithio-diphenyl diphosphate diphenyl at the temperature ranging from room temperature to 90 DEG C or above, after being completely cured, the epoxy vitrimer shows the characteristic of high toughness, the elongation at break reaches 200% or above, and the epoxy vitrimer shows that damage can be repaired and the service life of the epoxy vitrimer is prolonged. And hot-pressing recycling and reshaping and flame-retardant characteristics can be realized. The high-toughness, repairable, recoverable and flame-retardant epoxy vitrimer composite material is obtained by reacting the epoxy vitrimer resin and silicon dioxide modified by dithio diphenyl phosphate diphenyl glycidyl ether at the temperature ranging from the room temperature to 90 DEG C or above; the epoxy vitrimer composite material shows the characteristic of high toughness after being completely cured, the elongation at break reaches 150% or above, and the epoxy vitrimer composite material shows the characteristics of being repairable in damage, capable of being recycled and reformed through hot pressing and flame-retardant.

The invention particularly relates to a high-mirror-surface plastic mobile phone middle frame and a preparation method thereof. Comprising the following raw materials in parts by weight: 55-65 parts of polycarbonate, 5-8 parts of polyamide, 8-12 parts of modified polyphenyl ether, 2-5 parts of polyphenylene sulfide, 10-15 parts of a methyl methacrylate-butadiene-styrene copolymer, 0.5-1 part of a maleic anhydride grafted polymer, 0.3-0.5 part of phenyl glycidyl ether, 8-12 parts of a reinforcing agent and 0-3 parts of a functional aid. By reasonably matching polycarbonate, polyamide, modified polyphenyl ether and polyphenylene sulfide, the light transmittance and strength of the mobile phone middle frame are improved, and the compatibilizer is added to further improve the interfacial compatibility of the composite material; the rigidity and the surface hardness of the mobile phone middle frame are enhanced by filling the reinforcing agent, so that the mobile phone middle frame is scratch-resistant and oil-resistant; the method is attractive and practical, and high requirements in the consumer electronics field are met.

The invention relates to the technical field of printing ink, in particular to high-adhesion printing ink and a preparation method thereof.The high-adhesion printing ink is prepared from, by weight, 20-25 parts of bisphenol A epoxy resin, 18-22 parts of pigment, 1.5-2.5 parts of dispersing aid, 3-5 parts of first functional aid, 2-3 parts of second functional aid, 3-4 parts of triethylene tetramine and 3-5 parts of phenyl glycidyl ether, according to the invention, the second functional auxiliary agent is used for pretreating halloysite through a hydrochloric acid solution to improve the surface activity, and the silane coupling agent KH560 modifies and optimizes the compatibility and chemical bonding capacity in a resin system, so that the bonding strength of the ink and the surface of a substrate can be remarkably improved, the adhesion stability is enhanced, and the adhesion strength of the ink is improved. And the structural integrity of the ink after film formation can be optimized, the corrosion of the external environment to the film layer can be effectively resisted, and the service life of the printed product can be prolonged.

An adhesive formulation includes an epoxy-functional monomer or epoxy-functional polymer and an amino-phthalonitrile monomer or amino-phthalonitrile polymer. The adhesive formulation can include 4,4′-methylenebis(n,n-diglycidylaniline), bisphenol a diglycidyl ether, bisphenol f diglycidyl ether, n,n-diglycidyl-4-glycidyloxyaniline, 1,4-butanediol diglycidyl ether, trimethylolpropane triglycidyl ether, poly[(phenyl glycidyl ether)-co-dicyclo-pentadiene], or a combination thereof. The adhesive formulation may include a difunctional amine monomer, solvents, and one or more additives. A method of making an epoxy-phthalonitrile copolymer and a sandwich panel composition is disclosed. The sandwich panel can be a component of an aerospace structural application, such as a nacelle.

The application discloses a low-stray-light high-transmittance PDLC dimming film and a preparation process thereof, and belongs to the technical field of dimming films, and aims to solve the problems of stray light, insufficient transmittance and poor stability of an additional functional layer of an interface of an existing PDLC dimming film. The application adopts fluorine-containing diphenyl glycidyl ether to covalently graft and modify a PEDOT:PSS conductive layer, and through gradient fluorine-containing monomer matching, a corresponding PDLC functional layer system is matched, and the synergistic effect of simultaneous realization of refractive index regulation, interface orientation induction and conductive performance optimization in a single conductive layer is realized. According to the scheme, the open-state haze can be effectively reduced, the transmittance and contrast can be improved, the driving voltage can be reduced, the electro-optic response speed can be accelerated, the film layer stability is excellent, the preparation process is compatible with an existing mass production process, and the scheme has good industrial application prospects.

The invention relates to the field of synthesis of regenerated polyester, and discloses a preparation method of regenerated extinction cationic dyeable polyester, which is characterized in that BHET with the polymerization degree of 2-4, a tri-monomer, a stabilizer and an oxidizing agent are subjected to in-situ polymerization to prepare the regenerated extinction cationic dyeable polyester. The problems that the regenerated cationic polyester is poor in color value and unstable in spinning and titanium dioxide and three monomers are easy to self-polymerize and agglomerate to form large-particle gel are solved, and the quality and spinnability of the regenerated extinction cationic dyeable polyester are remarkably improved; according to the method, when the phenyl glycidyl ether and the phosphite ester are combined for use, agglutinated particles are completely not generated in a polyester melt, the DF value of the polyester can be remarkably reduced, the regenerated extinction cationic polyester can be subjected to melt direct spinning, the b value of the extinction cationic polyester can be remarkably reduced, and the yellowing effect of the extinction cationic polyester is remarkably inhibited; the color value of polyester is obviously improved.

The invention relates to the technical field of high polymer materials, and discloses a high-elasticity polyvinyl chloride material and a preparation method thereof, the high-elasticity polyvinyl chloride material comprises the following raw materials by mass: 80-100 parts of polyvinyl chloride resin, 10-20 parts of a composite reinforcing material, 10-15 parts of modified collagen fiber, 2-3 parts of a stabilizer, 5-10 parts of a plasticizer, and 6-8 parts of a lubricant. The composite reinforcing material and chloride ions in polyvinyl chloride can form ionic bonds and covalent bonds, so that the interfacial compatibility of the composite reinforcing material and a polyvinyl chloride material is remarkably improved, and the elastic modulus and the mechanical property of the polyvinyl chloride are enhanced; a polymer formed by copolymerization of 1, 4-vinyl phenyl glycidyl ether and 1-carboxyl o-carborane permeate into a three-dimensional multi-layer structure of the collagenous fiber, so that the interlayer spacing of the collagenous fiber is enlarged, permeation of a polyvinyl chloride molecular chain is facilitated, the structural stability of the composite reinforced material is improved, and the elastic modulus of the polyvinyl chloride material is enhanced.

The invention discloses an epoxy resin coating containing stainless steel scales and a preparation method thereof. The epoxy resin coating containing the stainless steel scales is prepared from ball-milled stainless steel powder, reactive diluent phenyl glycidyl ether, non-reactive diluent dibutyl ester, E44 epoxy resin, E51 epoxy resin and a T31 curing agent. The preparation method comprises the following steps: ball-milling the stainless steel powder; mixing and stirring the dried stainless steel powder, phenyl glycidyl ether serving as a reactive diluent, dibutyl ester serving as a non-reactive diluent, E44 epoxy resin, E51 epoxy resin and a T31 curing agent according to the weight parts; and ball-milling the stainless steel powder, the phenyl glycidyl ether serving as a reactive diluent, the dibutyl ester serving as a non-reactive diluent.

The invention discloses a corrosion-resistant polymer composite waterproof coating and a preparation method thereof, and relates to the technical field of coatings. The invention discloses a corrosion-resistant polymer composite waterproof coating. The invention discloses a high-temperature-resistant coating which is prepared from the following raw materials in parts by weight: 40 to 60 parts of styrene-butadiene-styrene block copolymer, 25 to 35 parts of epoxy resin E-51, 8 to 15 parts of modified nano silicon dioxide, 15 to 25 parts of modified polypropylene glycol, 8 to 12 parts of toluene diisocyanate, 5 to 10 parts of zinc phosphate, 10 to 18 parts of dioctyl phthalate, 3 to 8 parts of fumed silica, 1 to 3 parts of sodium benzoate and 3 to 6 parts of dimethylolpropionic acid. The invention relates to a high-temperature-resistant flame-retardant coating which is prepared from the following components in parts by weight: 1-4 parts of triethanolamine, 2-4 parts of triethylamine, 20-35 parts of polyamide 650, 3-8 parts of phenyl glycidyl ether and 40-60 parts of deionized water. The waterproof coating is scientific in raw material ratio, and the compatibility and the corrosion resistance are improved through the modified nano silicon dioxide and the polypropylene glycol; the preparation process is controllable, and the stability is guaranteed by accurate temperature control and dispersion; the coating has the advantages of high tensile strength, excellent salt mist resistance, excellent chemical medium resistance, good construction operability, stable storage and wide application scene.

The present application relates to a kind of microporous high magnification polyether sulfone foam material for electromagnetic shielding and its moulding foaming preparation method, belong to polymer material technical field, solve the problem that the high foaming magnification of existing polyether sulfone foam material, excellent mechanical properties and electromagnetic shielding performance cannot be obtained simultaneously.The foam material of the present application comprises the following mass percentage components: PES matrix resin 50.0%-90.0%;Functional second component 4.0%-30.0%;Conductive filler 5.0%-15.0%;Initiator 0.5%-3.0%;Cell stabilizer 0.3%-1.0%;Composite foaming agent 0.2%-1.0%;The sum of the mass percentage of all components is 100%;Functional second component includes one or more of methyl p-toluenesulfonyl acetate, 4-vinyl phenyl ether, 4,4'-diphenyl methane diisocyanate, bis (4-vinyl phenyl) sulfone, phenyl glycidyl ether, N-phenyl-2-naphthylamine.

The application discloses a kind of corrosion-resistant polymer composite waterproof coating and preparation method thereof, it is related to paint technical field.The corrosion-resistant polymer composite waterproof coating includes the following weight parts raw materials: 40-60 parts styrene-diene-styrene block copolymer, 25-35 parts epoxy resin E-51, 8-15 parts modified nanosilica, 15-25 parts modified polypropylene glycol, 8-12 parts toluene diisocyanate, 5-10 parts zinc phosphate, 10-18 parts dioctyl phthalate, 3-8 parts fumed white carbon black, 1-3 parts sodium benzoate, 3-6 parts dimethylol propionic acid, 1-4 parts triethanolamine, 2-4 parts triethylamine, 20-35 parts polyamide 650, 3-8 parts phenyl glycidyl ether, 40-60 parts deionized water.The waterproof coating raw material ratio of the application is scientific, modified nanosilica and polypropylene glycol improve compatibility and corrosion resistance;Preparation process is controllable, precision temperature control and dispersion guarantee stability;With high tensile strength and excellent salt fog resistance, chemical medium resistance, good construction operability, storage stability, wide application scenarios.

This invention relates to the field of polymer materials technology, and discloses a reprocessable epoxy-based glass polymer material and its preparation method. The material comprises bisphenol F epoxy resin, phenyl glycidyl ether, triethylenetetramine, 1,4-phenylenediboric acid, and anhydrous zinc chloride or anhydrous ferric chloride. In the system, bisphenol F epoxy resin and triethylenetetramine crosslink to form a rigid main framework; phenyl glycidyl ether introduces suspended segments to reduce steric hindrance; 1,4-phenylenediboric acid constructs a dynamically covalent network with interface reconstruction; and metal salts form a physical coordination network that inhibits segment slip at room temperature. The preparation method includes steps such as prepolymerization, azeotropic dehydration condensation, metal coordination, and phase separation precipitation hot pressing. This invention constructs an epoxy-boronate hybrid network, enabling the material to possess high elastic modulus and fracture strength at room temperature, while allowing for pulverization and reprocessing through topological exchange of dynamic bonds under heating conditions at 100°C.

The invention discloses a high-flame-retardant vehicle bottom stone chip resistant coating and a preparation method thereof, and belongs to the technical field of coatings, epoxy resin is used as a matrix, polyamide resin, phenyl glycidyl ether and DMP-30 are used to construct an efficient curing system, and a composite flame-retardant system composed of ammonium polyphosphate, aluminum hydroxide, magnesium hydroxide and the like is matched to prepare the high-flame-retardant vehicle bottom stone chip resistant coating. A reinforced structure formed by quartz sand powder, talcum powder and chopped glass fibers is combined, a low-VOC composite solvent compounded by propylene glycol methyl ether acetate and n-butyl alcohol is selected, and auxiliaries such as organic bentonite and polyamide wax slurry are added; and preparing to obtain the coating. According to the high-flame-retardant vehicle bottom stone chip-resistant coating and the preparation method thereof, the high-flame-retardant vehicle bottom stone chip-resistant coating is prepared through synergistic cooperation of a curing system, design of composite flame-retardant components, innovation of a graded dispersion process and optimization of an environment-friendly solvent system; the high unification of normal-temperature rapid curing, high flame retardance and stone impact resistance dual core performance, excellent storage stability and environment-friendly safety compliance of the coating is realized.

The application relates to the technical field of cables, and discloses a high-wear-resistance overhead insulated cable which comprises a core, an isolation layer and an outer protective layer arranged in sequence from inside to outside; the outer protective layer comprises the following raw materials: a ternary ethylene-propylene rubber, a macromolecular resin, reinforcing fillers, an anti-aging agent, a flame retardant, a dispersing agent, a plasticizer, a vulcanizing agent, a vulcanizing active agent and a vulcanizing accelerator; the reinforcing fillers comprise modified calcined clay and sericite; the modified calcined clay is obtained by modifying calcined clay with N-(beta-aminoethyl)-gamma-aminopropyl trimethoxysilane and phenyl glycidyl ether. The technical scheme can solve the problem of insufficient wear resistance of the outer protective layer of the overhead insulated cable in the related art.

The present invention relates to the field of epoxy resin technology, and in particular to a flame-retardant epoxy resin for HP-RTM process and a preparation method thereof. The flame-retardant epoxy resin for HP-RTM process is made of the following raw materials in parts by weight: 100 parts of epoxy resin, 30-50 parts of modified flame retardant, and 5-10 parts of functional additive, wherein the modified flame retardant is obtained by reacting acidified bis(2,3-dibromopropyl) fumarate with dibromocresyl glycidyl ether. The modified flame retardant in the flame-retardant epoxy resin for HP-RTM process provided by the present invention makes it have the effects of flame retardancy, viscosity reduction and improved heat resistance at the same time, thereby broadening the application field of epoxy resin.

The invention discloses a preparation method and application of a heteropolyacid siloxane glycidyl ether composite material, and belongs to the technical field of preparation of organic and inorganic composites.The preparation method comprises the steps that heteropolyacid is dispersed in solvent xylene or methylbenzene, an amino silane coupling agent is dropwise added, reduced pressure distillation and drying are conducted after reaction, and a solid product is obtained; the preparation method comprises the following steps: dispersing an alkyl glycidyl ether solution, a silane coupling agent, a silane coupling agent, a silane coupling agent, a silane coupling agent, a silane coupling agent, a silane coupling agent, a silane coupling agent, a silane coupling agent, a silane coupling agent, a silane coupling agent, a silane coupling agent, a silane coupling agent, a silane coupling agent, a silane coupling agent, a silane coupling agent, a silane coupling agent, a silane coupling agent and a silane coupling agent into an alkyl glycidyl ether solution, and carrying out reduced pressure distillation and drying to obtain the product. According to the present invention, the surface organosilicon coating is formed, the performance of the heteropolyacid as the heat-resistant additive is improved, the heteropolyacid siloxane interacts with the phenyl glycidyl ether or the octyl glycidyl ether, the phenyl glycidyl ether or the octyl glycidyl ether further modifies the heteropolyacid siloxane, and the heat resistance is substantially improved.

This invention discloses a drilling fluid filtration reducer and its preparation method. Using natural corn starch as raw material, a one-step simultaneous modification process is employed, adding propylene oxide, tri(1,2-epoxy)propyl ether, C14-C18 alkyl glycidyl ether, and phenyl glycidyl ether in a single step to simultaneously achieve hydroxypropylation, controlled crosslinking, and hydrophobic association modification. This invention introduces hydroxypropyl groups, crosslinking bridges, and hydrophobic groups onto starch molecules through synergistic ring-opening grafting of polyepoxy groups, forming a comb-like structure of a hydrophilic backbone and hydrophobic side chains. The crosslinking bridges enhance the thermal stability of the molecular chain, and the hydrophobic groups form an associative network at high temperatures, significantly improving temperature resistance and filter cake strength. This method is suitable for deep and ultra-deep wells with high-temperature, high-salinity formation water-based drilling fluids.

The invention discloses a curing agent composition and a preparation method thereof, an epoxy composite material and a preparation method thereof, and a hard composite insulator. The curing agent composition comprises a first curing agent and a second curing agent, the first curing agent comprises an anhydride curing agent; the anhydride curing agent comprises one or more than two of tetrahydrophthalic anhydride, phthalic anhydride, hexahydrophthalic anhydride, methyl hexahydrophthalic anhydride, chloridic anhydride, maleic anhydride and trimellitic anhydride glycerol; the second curing agent comprises one or two of o-toluene glycidyl ether and phenyl glycidyl ether. By introducing the curing agent composition with a rigid structure and a flexible chain segment, the heat resistance and toughness of the epoxy composite material are synergistically improved, the reliable epoxy composite material is provided for preparation of a hard composite insulator, and a safe and effective guarantee is provided for engineering of on-line monitoring of a power system.

The application provides a degradable PBAT modified material and a preparation method and application thereof. The material is prepared from the following raw materials: PBAT, aminophenylcyclohexane, a decomposition agent, an alkenyl glycidyl ether, a phenyl glycidyl ether and a slip agent. The application generates a reaction functional group by partially decomposing PBAT, uses a double screw to incorporate o-diallyl bisphenol A diglycidyl ether into PBAT blending reaction, simultaneously blends high-compatibility aminophenylcyclohexane reaction grafting, limits PBAT crystallization and improves transparency, and uses phenyl glycidyl ether capping to improve the distribution of double bonds and high-reactivity benzene rings. During the blowing film processing, one-time forming is performed through a certain amount of electron beam irradiation, compared with conventional PBAT electron beam irradiation films, the heat shrinkage rate is obviously improved, the transparency is higher, and the processing is stable.

The invention relates to a microporous high-magnification polyether sulfone foam material for electromagnetic shielding and a mould pressing foaming preparation method thereof, belongs to the technical field of high polymer materials, and solves the problem that high foaming magnification, excellent mechanical property and electromagnetic shielding property of the existing polyether sulfone foam material cannot be achieved at the same time. The foam material provided by the invention comprises the following components in percentage by mass: 50.0-90.0% of PES matrix resin; 4.0% to 30.0% of a second functional component; 5.0%-15.0% of a conductive filler; 0.5%-3.0% of an initiator; 0.3%-1.0% of a foam stabilizer; 0.2%-1.0% of a composite foaming agent; the sum of the mass percentages of all the components is 100%. And the second functional component comprises one or more of methyl p-toluenesulfonyl acetate, 4-vinyl phenyl ether, 4, 4 '-diphenylmethane diisocyanate, bis (4-vinyl phenyl) sulfone, phenyl glycidyl ether and N-phenyl-2-naphthylamine.

The invention relates to the field of epoxy resin, and discloses an epoxy resin composition, an epoxy resin material and a preparation method and application of the epoxy resin composition and the epoxy resin material. The component A comprises 100 parts by weight of aminophenol epoxy resin, 5-15 parts by weight of polyenol acetal, 5-15 parts by weight of phenyl glycidyl ether with a benzene ring containing C8-18 substituent groups, 2-6 parts by weight of a silane coupling agent and 1-3 parts by weight of a release agent; the component B comprises 100 parts by weight of an anhydride curing agent, 5-10 parts by weight of polyether polyol and 1-5 parts by weight of a curing accelerator; the component A and the component B independently exist. Through synergistic toughening, the heat resistance of the epoxy resin is improved while the mechanical property of the epoxy resin is balanced. The contradiction between the curing speed and the pot life is further solved through the cooperation of the latent accelerator and the rapid accelerator.

The invention provides a sandwich structure including a mixed adhesive and a method thereof. The adhesive formulation includes an epoxy functional monomer or an epoxy functional polymer and an amino-phthalonitrile monomer or an amino-phthalonitrile polymer. The adhesive formulation may include 4, 4 '-methylene bis (n, n-diglycidyl aniline), bisphenol A diglycidyl ether, bisphenol F diglycidyl ether, n, n-diglycidyl group-4-glycidyl oxyaniline, 1, 4-butanediol diglycidyl ether, trimethylolpropane triglycidyl ether, poly [(phenyl glycidyl ether)-co-dicyclopentadiene], or a combination thereof. The adhesive formulation may include a bifunctional amine monomer, a solvent, and one or more additives. A method of preparing an epoxy-phthalonitrile copolymer and a sandwich panel composition is disclosed. The sandwich panel may be a component of aerospace structural applications such as nacelles.