56 results about "Bisphenol A diglycidyl ether" patented technology

The invention discloses a polyurethane modified epoxy resin adhesive as well as a preparation method and application thereof, and the polyurethane modified epoxy resin adhesive is prepared from the following components in parts by mass: 7-10 parts of E51 type bisphenol A diglycidyl ether, 3.5 parts of a phenolic aldehyde amine T31 curing agent and 1-3 parts of synthetic polyurethane, the synthetic polyurethane is prepared from polyether triol, polyether amine, isophorone diisocyanate and glycerol carbonate, and a blending system of the synthetic polyurethane and bisphenol A diglycidyl ether is adopted to be subjected to covalent crosslinking with phenolic aldehyde amine T31, so that the adhesive has high toughness and strength guarantee; the synthetic polyurethane prepared by the method is obtained through simple, green and efficient solvent-free synthesis, and the synthesized product has certain fluidity at room temperature, so that the subsequent stirring preparation process of an adhesive is facilitated. And a solvent-free synthesis method is adopted, so that the use of a toxic organic solvent in the traditional polyurethane synthesis process is avoided, and the synthesis process is greener.

The invention discloses a DA bond polymer with antibacterial and self-repairing functions for a wood surface as well as a preparation method and a use method of the DA bond polymer. Chitosan serves as a wall material, cinnamon essential oil serves as a core material, the cinnamon essential oil and chitosan antibacterial microcapsules are prepared through emulsification, crosslinking and spray drying, and essential oil controlled release is achieved. Then bisphenol A diglycidyl ether DGEBA and furfuryl alcohol FA are used as raw materials, furyl functional epoxy resin FER is prepared under the catalysis of triethylamine TEA, bismaleimide BMI is added, and a DA bond self-repairing polymer is prepared through a DA reaction; and adding 4, 4-diaminodiphenylmethane DDM into the system, reacting with redundant DGEBA to generate a cross-linked polymer network, and adding the microcapsules into a DA bond semi-interpenetrating self-repairing network solution to obtain the DA bond polymer. A thin film formed by brushing and curing wood has antibacterial and self-repairing functions, scratches and microcracks on the surface of the wood can be repaired, and microbial erosion is inhibited.

The invention provides epoxy resin for halogen-free flame-retardant self-leveling powder coating and a preparation method of the epoxy resin, and belongs to the technical field of powder coating. The flame retardant is mainly prepared from anhydrous piperazine, bisphenol A diglycidyl ether, trihydroxymethyl phosphorus oxide, triethyl phosphite, epoxy chloropropane, sodium hydroxide, N-methyl iminodiacetic acid, ethylene glycol diglycidyl ether and other main raw materials through polymerization. The prepared epoxy resin and 2-phenylimidazoline are subjected to low-temperature curing (135 DEG C / 20 min) on the premise that an additional flatting agent does not need to be used, the flexibility of a coating film is good, the impact resistance grade is high, the impact performance reaches the condition that no cracking phenomenon exists in the front and back 60cm, the leveling grade reaches the grade 7 or above, the gloss is high and reaches 95% or above, the oxygen index reaches 34% or above, and the halogen-free flame retardant performance is excellent.

The invention relates to degradable self-repairing epoxy resin based on adjustable performance of dual dynamic covalent bonds and preparation and application of the degradable self-repairing epoxy resin. Firstly, two dynamic bond curing agents (a hindered urea bond and an imine bond) are prepared respectively, and an epoxy monomer bisphenol A diglycidyl ether, the two curing agents and a cross-linking agent 4, 4 '-diphenyl-1, 3-pentanediol diglycidyl ether are mixed to prepare a mixture; the preparation method comprises the following steps: mixing 4, 4 '-diaminodiphenylmethane according to the proportion of each dynamic bond, stirring and reacting at 70-80 DEG C for 30-60 minutes, and carrying out vacuum defoaming; and finally, pouring the mixture into a mold, and molding through a gradient curing process. Compared with the prior art, two different dynamic bond curing agents are utilized to construct a double-dynamic epoxy cross-linked network, so that the obtained material has excellent performance and degradable self-repairing capability, and a high-performance solution capable of repairing, degrading and prolonging the service cycle is provided for the field of electrical insulation.

The invention relates to the field of ceramic packaging materials, in particular to a packaging material for a high-voltage-resistant ceramic side wall and a preparation method of the packaging material. The packaging material is prepared from an epoxy-silica hybrid prepolymer, an aluminum oxide and silicon dioxide core-shell composite filler, methylhexahydrophthalic anhydride and 2-ethyl-4-methylimidazole, wherein the hybrid prepolymer is prepared by carrying out hydrolytic condensation on bisphenol A diglycidyl ether, hydroxyl-terminated PDMS (Polydimethylsiloxane) and 3-glycidoxypropyltrimethoxysilane; low viscosity and low volatile matter are realized; the core-shell filler takes aluminum oxide as a core and silicon dioxide as a shell, and a shell layer is grafted with epoxy silane so as to be chemically bonded with resin. And after curing, the power frequency short-time electrical strength of the packaging layer is greater than or equal to 20 kV / mm, the partial discharge initial voltage is greater than or equal to 3 kV, the volatile matter is less than or equal to 1.0 wt%, and the water content is less than or equal to 0.2 wt%.

A curable composition comprises: 1 to 65 percent by weight of polyepoxide comprising an addition reaction product of phenolphthalein and bisphenol A diglycidyl ether; 5 to 50 percent by weight of liquid polyepoxide; and an effective amount of curative for curing the curable composition. A curable adhesive film comprising the curable composition, and method of bonding are also disclosed.

The application discloses a composite flocculant based on aluminum chloride and a preparation method thereof, and belongs to the technical field of flocculant preparation, and is used for solving the technical problem that the stability and flocculation performance of the flocculant need to be further improved in the prior art; the branched polymer containing polycarboxyl groups is prepared by the reaction of tris(2-aminoethyl)amine and pyromellitic dianhydride, and the taurine groups are introduced to obtain the sulfobranched polycarboxyl polymer; the titanium phosphorus silicon aminopropyl composite is synthesized by using the sol-gel method, and the inorganic-organic network combination is realized; the polyimidazolium-hydroxy ether is obtained by the reaction of imidazole, epichlorohydrin and bisphenol A diglycidyl ether; the composite flocculant is formed by the reaction of the three under the acidic condition, the composite flocculant combines the polycarboxyl groups, the sulfonic acid groups, the imidazolium groups and the inorganic-organic skeleton, has high charge density, good adsorption and bridging performance, can rapidly form stable flocs, and can effectively remove the suspended particles and organic pollutants in water.

The invention belongs to the technical field of coating preparation, and provides a fireproof heat-insulating nano ceramic coating for a lithium battery and a preparation method of the fireproof heat-insulating nano ceramic coating. The coating is a water-based two-component system, in a first component, bisphenol A diglycidyl ether, compound colloidal silicon dioxide, boehmite and nano zirconium oxide and / or nano aluminum oxide are used for constructing a ceramic skeleton, and aerogel, hollow glass beads, expanded vermiculite and / or flaky mica and inorganic fibers are combined to form a heat insulation network; the flame-retardant system contains ammonium polyphosphate, pentaerythritol, melamine components, zinc borate and sealing glass powder, silane interface bonding components and thermal expansion microspheres are introduced, an expansion thermal insulation layer is formed when the flame-retardant system is heated, and the flame-retardant system is densified into a hard shell at high temperature; the second component is a water dispersible amine curing agent; the preparation method comprises the following steps: adding the interface bonding components step by step, and sequentially compounding the inorganic phase and the flame-retardant heat-insulating phase to obtain the double-component packaged coating which is suitable for safety protection of a lithium battery system.

The invention belongs to the field of functional polymers, and particularly relates to a high-toughness, repairable and recoverable epoxy vitrimer and a preparation method thereof.The epoxy vitrimer is obtained through a ring-opening polymerization reaction of dithiodiphenyl diglycidyl ether, bisphenol A diglycidyl ether and isocyanuric acid tris [2-(3-mercaptopropionyloxy) ethyl ester] at the temperature ranging from the room temperature to 100 DEG C. The epoxy vitrimer has the advantages that the epoxy vitrimer is high in toughness, can be repaired and recoverable, and can be recycled; after being completely cured, the high-toughness characteristic is shown, the tensile strength is not lower than 40 MPa, and the elongation at break is not lower than 140%. Meanwhile, the epoxy vitrimer can realize the characteristics of being repairable and recoverable at a high temperature.

Use of a coating composition on a chromium-free tinplate substrate, the coating composition comprising: a polyester material, and a benzoguanamine or a derivative thereof wherein the coating composition is substantially free of bisphenol A (BPA), bisphenol F (BPF), bisphenol A diglycidyl ether (BADGE), and bisphenol F diglycidyl ether (BFDGE).

The invention discloses an anisotropic conductive stretchable electronic solder and a preparation method and application thereof, the stretchable electronic solder comprises a polymer adhesive and a silver nanosheet, and the mass ratio of the polymer adhesive to the silver nanosheet is (5-20): 1; the high-molecular adhesive is obtained by heating bisphenol A diglycidyl ether, polyethylene glycol diglycidyl ether and furfuryl amine at 40-60 DEG C to react, and then heating with N, N '-(4, 4'-methylene diphenyl) bismaleimide at 60-80 DEG C to react. According to the anisotropic conductive stretchable electronic solder provided by the invention, by virtue of excellent flexibility and stretchability endowed by the dynamic chemical polymer adhesive, the problem of stress concentration caused by physicochemical property difference of a soft / hard base material can be effectively counteracted, stable connection of an electrical interface is always kept in a stretching deformation process, and the reliability of the electronic solder is improved. Universal welding of flexible, stretchable and rigid materials and devices is successfully achieved.

This invention discloses a method for preparing double-crosslinked cable materials containing diallyl bisphenol A diglycidyl ether and DCP, belonging to the field of high-voltage DC cable technology. The method for preparing EAA and LDPE cable materials containing diallyl bisphenol A diglycidyl ether and DCP as double crosslinking agents involves using ethylene-acrylic acid copolymer (EAA) and low-density polyethylene (LDPE) as the matrix, employing a small molecule epoxy compound and DCP as crosslinking agents, and heating and pressurizing on a flat vulcanizing machine to obtain double-crosslinked high-voltage DC cable materials. The preparation method of the double-crosslinked high-voltage DC cable materials prepared by this invention is simple and significantly improves the thermal elongation and breakdown performance of high-voltage cable materials.

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 discloses a nano-composite coating for eliminating partial discharge defects of electrical equipment as well as a preparation method and application of the nano-composite coating. The coating consists of a component A, a component B and a component C, wherein the component A is a coating main material and comprises a composite resin matrix formed by a block copolymer of amino-terminated polyether-polysiloxane and bisphenol A diglycidyl ether, a silane modified nano BN sheet, a composite nano filler formed by nano SiO2 and nano TiO2, and a hydrophobic gas-phase SiO2 filler anti-settling agent modified by an epoxypropane-ethylene oxide block copolymer; a coating layer of the paint has good toughness and electrical performance, can adapt to the construction environment of partial discharge defect elimination and insulation coating external damage prevention, and can provide good and long-term partial discharge defect elimination and external damage prevention protection force; meanwhile, the coating effectively solves the problem of nano agglomeration, provides powerful guarantee for long-term stable storage of the coating and adaptation to use requirements of partial discharge defect elimination and external damage, and has good practical value and popularization prospect.

The application provides a thermosetting viologen electrochromic solution and an electrochromic device. The thermosetting viologen electrochromic solution comprises the following components at the following concentrations: 1.5-4.5 g / mL of a diepoxy functional group molecule, 0.5-0.8 g / mL of an anhydride curing agent, 0.1-0.4 g / mL of a viologen compound, and 0.05-0.3 g / mL of a counter electrode material; the diepoxy functional group molecule is at least one selected from bisphenol f diglycidyl ether, bisphenol a diglycidyl ether and bisphenol s diglycidyl ether. The electrochromic device comprises a solid electrochromic layer formed by curing the thermosetting electrochromic solution. The application optimizes the formula, so that the electrochromic solution can achieve thermal curing while ensuring good electrochromic performance, solves the problems of easy leakage and poor safety of the viologen electrochromic device, and can be thermally cured and formed, avoiding the potential adverse effects of the ultraviolet curing method on the performance of the device.

The invention discloses a preparation method of diallyl bisphenol A diglycidyl ether, and relates to the technical field of epoxy resin materials, and the preparation method comprises the following steps: S1, primary reaction: respectively weighing diallyl bisphenol A and epoxy chloropropane by using a precise electronic scale, and placing the weighed diallyl bisphenol A and epoxy chloropropane in a four-neck flask; according to the preparation method of the diallyl bisphenol A diglycidyl ether, diallyl bisphenol A and epichlorohydrin are subjected to epoxidation reaction under an alkali condition, epichlorohydrin is taken as a solvent, a one-step process is adopted, and the diallyl bisphenol A diglycidyl ether is prepared by controlling the reaction temperature and the reaction time, adjusting the alkali amount and the alkali adding mode, carrying out reduced pressure reflux with water and the like. The diallyl bisphenol A diglycidyl ether with low hydrolyzable chlorine, low total chlorine and high yield is obtained, compared with common bisphenol A epoxy resin, an allyl structure is introduced to a benzene ring, active functional groups in a molecular chain are increased, and the application field of the epoxy resin is expanded.

The present application belongs to the field of adhesive, discloses a heat-controlled reversible adhesive conductive composite material for quick replacement of back-sticking type flexible sensor, which is prepared from bisphenol A diglycidyl ether, polyether amine, epoxy polyamide curing agent, succinic anhydride, PEDOT:PSS, fumed silica, 3-aminopropyl triethoxysilane, single-walled carbon nanotube and glycerol carbonate. In the composite material provided by the present application, PEDOT:PSS and single-walled carbon nanotube are introduced as conductive fillers, succinic anhydride is introduced to endow the material with thermal reversibility, epoxy polyamide curing agent is introduced to provide a rigid support skeleton, 3-aminopropyl triethoxysilane and glycerol carbonate are introduced to improve the performance of the material, the obtained composite material has excellent adhesive performance, can stably transmit electric signals, and can endow the back-sticking type flexible sensor with quick replaceability because the curing and debonding modes of the composite material are both temperature-controlled.

Provided in the present application are a polyester core material and a preparation method therefor, a wind turbine blade skin and a wind turbine blade. The polyester core material comprises a modified polyester, wherein the modified polyester material is obtained by introducing a chain segment of bisphenol A diglycidyl ether and a chain segment of methyl tetrahydrophthalic acid into a PET material, and controlling the molar ratio of the chain segment of bisphenol A diglycidyl ether to the chain segment of ethylene glycol to be 1: (10-50). A relatively high content of a group having a rigid structure and larger spatial internal resistance can be introduced into the PET material, such that the number-average molecular weight and the molecular-weight distribution of the PET material are in an appropriate range, the modified polyester molecules are difficult to move, and the heat resistance and mechanical properties of PET are also improved.

The application belongs to the field of electronic and electrical device packaging materials, and provides a high-heat-dissipation composite functional material and a preparation method and application thereof. Bisphenol A diglycidyl ether, diphenyl diglycidyl ether, 1,4-butanediol diglycidyl ether, 3-glycidyl ether oxypropyl trimethoxysilane, polyimide shell-coated hexagonal boron nitride core-shell filler, spherical alumina, methyl hexahydrophthalic anhydride and 2-ethyl-4-methyl imidazole are cooperatively designed, and the material is obtained through mixing, degassing and segmented curing. The obtained material has relatively high apparent thermal conductivity, volume resistivity, bending strength and breakdown strength, the uncured composition has suitable viscosity, the problems of poor fluidity under high filling conditions, limited processing window and difficult to balance high thermal conductivity and high electrical insulation are solved, and the material has good electronic and electrical device packaging application value.

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 invention provides a preparation method of a carbon fiber composite material and a preparation method of a welding structure, and belongs to the technical field of composite materials. The preparation method of the carbon fiber composite material comprises the following steps: mixing bisphenol A diglycidyl ether, polypropylene glycol diglycidyl ether and 2, 2 '-diaminodiphenyl disulfide to obtain a Vitrimer resin precursor; the preparation method comprises the following steps: coating a Vitrimer resin precursor on a carbon fiber fabric, and then sequentially carrying out film coating and rolling to obtain an intermediate product; performing first thermocuring treatment on the intermediate product to obtain a sheet; carrying out second thermocuring treatment on the Vitrimer resin precursor to obtain a resin material; multiple layers of sheets are sequentially stacked in the thickness direction of the sheets, a resin material is inserted between every two adjacent layers of sheets, and the carbon fiber composite material is obtained through hot pressing treatment. The invention aims to solve the problems that the prepreg is not easy to store and the curing time of the laminated plate is long in the existing prepreg process.

The invention discloses an aluminum chloride-based composite flocculant and a preparation method thereof, belongs to the technical field of flocculant preparation, and aims to solve the technical problem that the stability and flocculation performance of a flocculant need to be further improved in the prior art. The preparation method comprises the following steps: reacting tris (2-aminoethyl) amine with pyromellitic dianhydride to prepare a branched polymer containing multiple carboxyl groups, and introducing a taurine group to obtain a sulfo-branched polycarboxyl polymer; a titanium phosphorus silicon aminopropyl compound is synthesized by adopting a sol-gel method, so that inorganic-organic network combination is realized; the preparation method comprises the following steps: reacting imidazole with epoxy chloropropane and bisphenol A diglycidyl ether to obtain polyimidazolium-hydroxy ether; the composite flocculant is formed through reaction of the three components under the acidic condition, the composite flocculant is combined with multiple carboxyl groups, sulfo groups, imidazolium groups and an inorganic-organic framework, the composite flocculant has high charge density and good adsorption and bridging performance, stable flocs can be rapidly formed, and suspended particles and organic pollutants in water can be effectively removed.

The invention relates to the field of regenerated PP composite materials, and discloses a high-rigidity lightweight PCR PP carbon fiber material. The high-rigidity lightweight PCR PP carbon fiber material is prepared from the following raw materials in parts by weight: 80-100 parts of recycled PP resin, 20-30 parts of pretreated carbon fiber powder, 6-12 parts of a flexibilizer, 4-8 parts of a compatilizer, 1-3 parts of a lubricant and 1-3 parts of an antioxidant. The pretreated carbon fiber powder is prepared from carbon fiber powder, a silane coupling agent, epoxy vinyl resin, o-diallyl bisphenol A diglycidyl ether, 4-vinylbenzyl glycidyl ether, dodecyl glycidyl ether and a catalyst. The prepared PCR PP carbon fiber material is used in a low-temperature and humid and hot environment for a long time, has relatively good rigidity and relatively good impact toughness, and has the advantage of light weight.

The invention provides shape memory matrix resin as well as a preparation method and application thereof. The shape memory matrix resin comprises the following components: 3-15 parts of a cosolvent; 80 to 150 parts of bisphenol A diglycidyl ether; 5 to 30 parts of triphenol monomer glycidyl ether; 5-30 parts of core-shell particles; 5 to 30 parts of a polyurethane prepolymer; 5-25 parts of amino-terminated liquid rubber; 1-20 parts of an inorganic nano filler; 0.1 to 5 parts of polydimethylsiloxane; 28 to 49 parts of a cross-linking agent; and 1-3 parts of an accelerant. According to the resin, bisphenol A diglycidyl ether is used as a main monomer, a cosolvent is used as a viscosity modifier, triphenol monomer glycidyl ether is used as an auxiliary monomer, a polyurethane prepolymer and amino-terminated liquid rubber are used as flexible modifiers, core-shell particles are used as anti-impact modifiers, and an inorganic nano filler is used as a reinforcing rheological agent. The shape memory matrix resin is formed through step-by-step ring-opening addition polymerization. The flexibility of the shape memory matrix resin is enhanced, and a micro-phase separated three-dimensional network structure is formed, so that the shape memory matrix resin is endowed with good performance.

The invention belongs to the field of functional polymers, and particularly relates to a detachable epoxy vitrimer-based potting electrical component adaptive to a wide temperature range. The invention relates to an epoxy vitrimer resin, which is composed of isocyanuric acid tris [2-(3-mercaptopropionyloxy) ethyl ester], trimethylolpropane tris (3-mercaptopropionate), pentaerythritol tetra (mercaptoacetic acid) ester, tetrahydrophthalic acid diglycidyl ester, bisphenol A diglycidyl ether, and dithio diphenyl diglycidyl ether, and the preparation method of the epoxy vitrimer resin comprises the following steps: mixing the epoxy vitrimer resin, the trimethylolpropane tris (3-mercaptopropionate), the pentaerythritol tetra (mercaptoacetic acid) ester, the tetrahydrophthalic acid diglycidyl ester, the bisphenol A diglycidyl ether and the dithio diphenyl diglycidyl ether; and after the electrical component represented by the high-voltage electrical component is encapsulated, the curing reaction is performed for more than 6 hours at the room temperature of 100 DEG C below zero. After complete curing, the epoxy vitrimer-based potting electrical component has wide temperature range adaptability, and meanwhile, selective complete disassembly and repotting can be realized in a specific sulfydryl or alkaline solution.

The invention relates to flexible chain modified epoxy resin, a single-component epoxy structural adhesive and a preparation method of the flexible chain modified epoxy resin and the single-component epoxy structural adhesive. The modified epoxy resin is obtained by reaction of bisphenol A diglycidyl ether, butenedioic acid and epoxidized soybean oil, has low modulus and good adhesion, and can endow an adhesive system with good flexibility. The flexible chain modified epoxy resin, the liquid nitrile rubber modified epoxy resin and the core-shell nanoparticle toughening agent are compounded to achieve synergistic toughening, and then a proper curing agent, a proper accelerant and a proper thixotropic agent are used in a matched mode to prepare the single-component epoxy structural adhesive. According to the present invention, the thermal stress existing between the single-component epoxy structural adhesive and the base material during the heat treatment process can be effectively solved so as to provide the good multi-base material adhesion ability, the high mechanical property at the normal temperature can be ensured, the low temperature flexibility is improved, the high and low temperature performance is enhanced, and the adhesion failure caused by the brittle fracture is avoided.

The invention provides a flame-retardant resin composition with remoldability and a preparation method thereof. The flame-retardant resin composition with remoldability comprises epoxy resin, a flame retardant, linear dicarboxylic acid and a catalyst. The epoxy resin comprises bisphenol A diglycidyl ether. The flame retardant comprises a dicarboxylic acid structure chain segment and a structure chain segment as shown in a formula (1). The linear dicarboxylic acid is represented by formula (2). The catalyst comprises di-n-butylamine. The ratio of the mole number of the epoxy resin to the total mole number of the flame retardant and the linear dicarboxylic acid is 1: 0.9-1: 1.1. Wherein n is an integer from 4 to 10. Based on high strength, flexibility, remoldability and flame retardance provided by the resin composition, the resin composition disclosed by the invention is suitable for being used as a functional reinforcing material of flexible materials such as fibers or cloth and the like, and is convenient to recycle and reuse so as to adapt to sustainable development of low-carbon, regenerative and cyclic environmental protection.

The application discloses anisotropic conductive stretchable electronic solder as well as a preparation method and application thereof, the stretchable electronic solder comprises a polymer binder and silver nanosheets, and the mass ratio of the polymer binder to the silver nanosheets is (5-20):1; the polymer binder is obtained by heating reaction of bisphenol A diglycidyl ether, polyethylene glycol diglycidyl ether and furfurylamine at 40-60 DEG C, and then heating reaction of N,N'-(4,4'-methylene diphenyl) bismaleimide at 60-80 DEG C. The anisotropic conductive stretchable electronic solder provided by the application can effectively offset the stress concentration problem caused by the difference in physical and chemical properties of soft / hard substrates, and ensure that the electrical interface always maintains stable connection in the stretching deformation process, and successfully realizes the universal welding of flexible, stretchable and rigid materials and devices.

The application relates to the technical field of electronic equipment, in particular to an ink, a preparation method thereof, a camera decoration assembly, a shell and an electronic equipment. The ink comprises a main agent, a pigment filler, a diluent and a curing agent; the main agent comprises a main body resin, and the main body resin comprises the following components in parts by mass: 60-80 parts of methyl methacrylate; 1-3 parts of bisphenol A diglycidyl ether; and 6-10 parts of dimethyl glutarate. The above ink can solve the problem that ultraviolet light cannot penetrate the shielding layer to cure the ultraviolet curing glue.

The invention relates to the technical field of composite copper foil recovery, in particular to a method for recovering copper and PET (polyethylene terephthalate) from waste PET copper foil step by step, which comprises the following steps: 1) obtaining the waste PET copper foil; (2) the waste PET copper foil obtained in the step (1) is immersed in a leaching treatment solution containing H2SO4, CuSO4 and NaCl, and a leaching solution containing copper and a PET base material are obtained; 3) recovering copper from the leachate by adopting an electrochemical deposition method, and obtaining a copper deposit; 4) respectively pretreating a cross-linking agent DGEBA (bisphenol A diglycidyl ether), a catalyst Zn (acac) 2 (zinc acetylacetonate) and the PET base material separated in the step 2), and then mixing to obtain a mixed material; 5, PET is recycled from the mixed material in the step 4 through a Vitrimers chemical modification method.According to the method, the integrated process of selective leaching-electrodeposition cooperating with copper recycling and Vitrimers chemical modification PET regeneration is adopted, the treatment cost is low, the requirements for environmental protection and sustainable development are met, and it is possible that PET copper foil is efficiently recycled in an environment-friendly mode.