53 results about "Epoxy amine" patented technology

The invention discloses a water-borne epoxy resin coating which comprises a component A and a component B, the component A is prepared from 60 to 80 parts of 50 percent modified water-borne epoxy resin emulsion, 5 to 15 parts of deionized water, 0.5 to 1 part of wetting dispersant, 0.2 to 0.8 part of defoaming agent, 5 to 10 parts of modified zinc phosphate, 3 to 5 parts of ion exchange antirust pigment, 4 to 6 parts of sericite powder, 3 to 5 parts of glass flake, 5 to 10 parts of precipitated barium sulphate, 1 to 5 parts of nano silicon dioxide and 0.5 to 1 part of rheological additive; 1 to 2 parts of modified organic bentonite slurry; 0.1 to 0.3 part of a pH conditioning agent; and 0.2 to 0.8 part of a flash rust inhibitor. The component B is prepared from 40 to 50 parts of waterborne epoxy-amine adduct, 20 to 30 parts of 50 percent modified polyamide curing agent, 5 to 15 parts of 60 percent Mannich base phenolic aldehyde amine curing agent, 0.5 to 1.5 parts of epoxy silane coupling agent, 1 to 2 parts of nonionic surfactant and 15 to 20 parts of deionized water. The emulsion stability of the waterborne epoxy resin coating is improved through a bisphenol A / F mixed epoxy emulsion and a grafted polyethylene glycol hydrophilic chain segment.

The invention relates to the technical field of outer layer materials of aluminum-plastic films for battery packaging, and discloses a new energy battery packaging film and a preparation method thereof.The preparation method comprises the steps that in a molten state and under the action of a free radical initiator, a self-made grafting monomer is grafted to a molecular main chain of LLDPE resin through a free radical graft copolymerization reaction, and epoxy LLDPE master batches are prepared; the preparation method comprises the following steps: based on an epoxy-amido ring-opening reaction mechanism, carrying out melt blending on an epoxy-based LLDPE master batch and PA6 resin to generate a bridging type PA6-LLDPE composite master batch, and carrying out blow molding to prepare a PA6-LLDPE film; a PA6-LLDPE film is used for replacing an outer layer PA6 film in an aluminum plastic film, and the new energy battery packaging film is prepared. The prepared PA6-LLDPE film product can replace an outer layer pure PA6 film of an aluminum plastic film to be used for packaging a battery which is high in product falling risk and few in burrs in the assembling process, so that the beneficial technical effect of reducing the overall production cost of the aluminum plastic film is achieved.

The invention relates to a long-acting anticorrosive epoxy primer and a preparation method thereof, and belongs to the technical field of protective coatings. The primer is a two-component system, a component A comprises epoxy resin and a thermal latent cationic initiator, and a component B comprises an amine curing agent and alkaline silane. The decomposition temperature of the initiator is designed to be matched with the exothermic peak of epoxy-amine curing reaction, and hydrolytic condensation of alkaline silane is triggered in the curing process, so that a compact composite structure is formed. According to the structure, the adhesive force, the shielding property and the medium permeability resistance of the coating are effectively improved, and the long-acting corrosion resistance of the coating is remarkably enhanced. The invention further provides a corresponding preparation method which is simple and controllable in process and suitable for protection of metal components in a harsh corrosion environment.

The invention discloses a composite material hollow plate and a preparation method, and belongs to the technical field of composite material plate preparation. The composite material hollow plate comprises an outer plate and an inner plate, a plurality of corrugated supporting structures are connected between the outer plate and the inner plate, and a cavity is formed between every two adjacent corrugated supporting structures. A wear-resistant reinforcing agent is added into an outer plate material to improve the surface wear resistance, an epoxy-amine dual-core double-wall microcapsule is introduced into an inner plate material to enhance the crack repairing capacity, and a shape memory reinforcing agent is added into a corrugated supporting structure material to endow the material with the shape memory characteristic. The invention solves the technical problems of difficulty in consideration of strength and toughness, short service life, poor buffer performance, insufficient interface bonding strength and the like of the existing composite material hollow plate, and is particularly suitable for steel coil packaging and other application scenes requiring repeated use and high reliability.

The application discloses a kind of for multi-substrate coating fast-curable water-based acrylic modified epoxy resin emulsion and its preparation method, first by itaconic acid, alcohol ether solvent and bisphenol A type epoxy resin synthesis epoxy adduct intermediate product, then with other acrylic monomer free radical polymerization is formed acrylic modified epoxy resin with this intermediate product, finally using additional epoxy emulsifier by phase inversion method is made water-based acrylic modified epoxy resin emulsion.The emulsion prepared in the application has higher glass transition temperature, has faster surface dry and curing speed, can satisfy the fast curing of coating film on various substrate workpieces, workpiece offline stacking resistance requirements;Side chain contains a certain amount of carboxyl and hydroxyl, can give coating excellent adhesion, realize good adhesion on various substrates;Resin structure contains a certain amount of bisphenol A type epoxy resin, and epoxy-amine curing agent is well compatible after curing, and coating is uniform.

The invention discloses a high-thermal-stability epoxy amine adduct, a single-component pouring sealant and a preparation process of the high-thermal-stability epoxy amine adduct, the high-thermal-stability epoxy amine adduct is prepared by reacting a single-epoxy compound containing a cyclic structure, aromatic polyamine and a double-epoxy compound containing a flexible chain segment according to a specific molar ratio, and the molecular structure of the high-thermal-stability epoxy amine adduct has rigidity, flexibility and latency; the single-component pouring sealant taking the addition product as a curing agent comprises epoxy resin, the addition product, inorganic filler, a silane coupling agent and the like, the pouring sealant can be stably stored at room temperature, a three-dimensional network structure formed after heating and curing is compact, and the pouring sealant has high glass transition temperature, high thermal decomposition temperature and excellent long-term thermal aging performance; and the epoxy resin is especially suitable for potting protection of electronic components with extremely high requirements on heat resistance and reliability.

The present invention relates to the field of rubber material modification, and specifically to a functionalized rubber for an epoxy / amine curing system, which comprises component A and component B. The mass ratio of each raw material in component A is as follows: 100 parts of liquid unsaturated rubber, 50 parts of propylene glycol methyl ether, 1 - 5 parts of vinyl silane coupling agent, 1 - 10 parts of unsaturated epoxy diluent, 0.2 - 0.5 parts of initiator, 1 - 5 parts of laboratory grade three water, and 10 - 30 parts of 800 - mesh silica powder; the mass ratio of each raw material in component B is as follows: 100 parts of liquid unsaturated rubber, 40 parts of xylene, 10 parts of ethanol, 1 - 5 parts of laboratory grade three water, 0.1 - 0.5 parts of catalyst, 1 - 5 parts of oxidant, 1 - 3 parts of isocyanate, 1 - 3 parts of aromatic diamine, and 3 - 5 parts of blocking agent. The functionalized rubber of the present invention can improve the compatibility between the modified rubber material and the epoxy / amine system, reduce the influence of the modified rubber - like material on other properties of the system, and increase the flexibility of the system while ensuring the system strength.

The invention discloses epoxy damping prepreg resin of an epoxy / amine dual-curing system and a preparation method of the epoxy damping prepreg resin, and belongs to the technical field of prepreg resin preparation. The preparation method of the epoxy damping prepreg resin of the epoxy / amine dual-curing system comprises the following steps: grafting a polyurethane flexible chain segment to an epoxy resin side chain segment to prepare epoxy-terminated urethane resin; mixing the epoxy-terminated urethane resin with polyether triamine, and carrying out pre-curing, so as to obtain pre-cured resin; and mixing the pre-cured resin, dicyandiamide and a diaminoimidazole triazine complex, and carrying out final curing, so as to obtain the epoxy damping prepreg resin of the epoxy / amine dual-curing system. By regulating and controlling the curing degree, on the basis that the viscosity, viscosity and the like of the resin are freely adjusted to meet the requirements of a production process, the tensile strength, modulus, short-time bending creep and other mechanical properties of the prepreg resin cannot be greatly changed due to the adjustment of the viscosity and the viscosity, and meanwhile, the damping performance of the prepreg resin can be remarkably improved.

The present application relates to the technical field of surface modification materials, and particularly relates to a perfluoroalkyl silane coupling agent for material surface modification and a preparation method thereof. The coupling agent comprises synergistically modified perfluoroalkyl triethoxysilane, an organic small-molecule functional regulator, an acid catalyst, a surfactant, a stabilizer, ethanol and deionized water. The synergistically modified perfluoroalkyl triethoxysilane is prepared by synergistic modification of perfluoroalkyl triethoxysilane, monohydroxyl column [5] arene, octakis(glycidyl ether propyl) silsesquioxane, N-(2-aminoethyl)-3-aminopropyl trimethoxysilane and 2,6-pyridine dimethyl formaldehyde through host-guest inclusion, epoxy-amine ring-opening reaction and Schiff base condensation reaction, and the organic small-molecule functional regulator is 9,10-dihydroxyanthracene. The preparation method is simple and suitable for surface modification of various substrates such as glass, metal, ceramic and polymer materials.

The present invention provides a cross-linked polyester resin that exhibits high strength at room temperature through dynamic covalent crosslinking that allows for bond exchange at high temperatures. Above its softening temperature, it is reprocessable and allows for inter-film adhesion and self-healing. Furthermore, even without the addition of an ester exchange catalyst, it exhibits softening behavior based on bond exchange in the ester exchange reaction, demonstrating self-adhesion, reformability, and damage repair properties. A cross-linked polyester resin is obtained by cross-linking a polyester resin having carboxyl groups on its side chains with an epoxy crosslinker having multiple epoxy groups. The epoxy crosslinker comprises an epoxyamine compound having two or more tertiary amino groups and two or more epoxy groups within the molecule, with the epoxyamine compound being present in an amount of 3 to 30 moles per 100 moles of carboxyl groups in the polyester resin having carboxyl groups on its side chains.

This invention relates to the field of polymer fine chemical materials and the synthesis technology of special functional waterborne coatings, specifically to an aldehyde-capturing self-healing waterborne coating and its preparation method. The invention discloses an aldehyde-capturing self-healing waterborne coating and its preparation method. This coating uses a side-chain carboxylated ketone-containing waterborne polyurethane-acrylate composite emulsion as the core film-forming material, forming dynamic hydrazone crosslinks with adipic acid dihydrazide, and introducing an epoxy-amine permanent crosslinking network. The side-chain carboxyl groups are derived from maleic anhydride grafted and undergo ring-opening transformation upon contact with water, and are covalently fixed to the polymer side chains, preventing the migration of small molecule acids and ensuring coating storage stability. After the coating cures, environmental moisture triggers the dissociation of side-chain carboxyl groups, releasing protons and catalyzing the dynamic exchange of hydrazone bonds, achieving room-temperature self-healing. Excess hydrazone groups in the coating capture aldehyde pollutants, and the newly generated hydrazone bonds introduce polar groups and crosslinking sites, enhancing network stability.

Disclosed herein is an aqueous coating composition containing an aqueous epoxy resin dispersion, an aqueous amine-functional resin dispersion and an aromatic carboxylic acid. The aqueous dispersion contains at least one specific di- and / or polyfunctional monomeric amine and at least one resin component including at least one specific polyfunctional organic amine. Further disclosed herein is a kit-of-parts including a base varnish containing the aqueous epoxy resin dispersion and a curing component containing the aqueous amine-functional resin dispersion as well as the aromatic carboxylic acid. Additionally disclosed herein is a process for producing a coating on the substrate as well as coated substrates resulting from said process. Cured coating layers formed from said compositions exhibit a good adhesion to the substrate as well as a high intercoat adhesion and blistering stability under humidity conditions without negatively influencing the excellent sandability and the good stone chipping properties.

The invention belongs to the technical field of epoxy resin coatings, and particularly relates to a bi-component aliphatic polyamine epoxy graphene acid-resistant coating which comprises epoxy resin in a component A and a curing agent in a component B. The curing agent is perfluoroalkyl secondary amine. Alicyclic diamine and perfluoroalkyl ethylene are subjected to a Michael addition reaction under the action of a catalyst cupric trifluoroacetate, the cupric trifluoroacetate catalyst effectively prevents the perfluoroalkyl ethylene and a generated target product secondary amine from being further subjected to an excessive addition reaction, and the reaction efficiency is improved; after the curing agent is subjected to cross-linking reaction with the epoxy resins in the scheme, a large number of ether bonds existing in a traditional phenolic epoxy amine curing system can be eliminated, so that nucleophilic reagent attack sites are reduced, meanwhile, the curing agent perfluoroalkyl secondary amine is converted into a tertiary amine structure, coordination activation of H to nitrogen atoms is reduced, and a coating is more stable.

The present invention belongs to the field of intelligent organosilicon polymer materials, and provides a kind of high-adhesion silicone resin antibacterial, anticorrosive coating and preparation method thereof.By organosilane modified natural antibacterial agent dehydroabietic acid, it is introduced into silicone resin system, and the antibacterial performance of silicone resin coating is improved.Using 3-aminopropyl triethoxysilane (KH-550) and γ-glycidyl ether oxygen propyl trimethoxysilane (KH-560) as raw materials, multifunctional siloxane (MF-S) is synthesized, as epoxy-amine curing agent, by condensation reaction, the cross-linking density of methylphenyl silicone resin is increased, so that it has excellent mechanical properties.After the obtained coating is cured at room temperature, the hardness reaches more than 6H, the adhesion reaches 1 grade, and the tensile strength of the obtained film reaches 9MPa.The silicone resin coating prepared by the present invention has good antibacterial performance, antifouling performance and anticorrosive performance, and the preparation method is simple and efficient, strong in practicality, has broad application prospects, and is conducive to realizing industrialized production.

The application discloses a water-based high-solid-content epoxy micawHITE intermediate paint for heavy-duty corrosion protection and a preparation method and application thereof, and comprises components A and B; the component A comprises water-based epoxy dispersion, a toughening agent, titanium barium powder, micawHITE and polyamide wax paste; the solid content of the water-based epoxy dispersion is not less than 70%, and the epoxy equivalent of the water-based epoxy dispersion is 270-330; the component B comprises water-based epoxy amine curing agent, micawHITE and polyamide wax paste; the HLB value of the water-based epoxy amine curing agent is 10-18, and the solid content is greater than 50%. When the curing agent is added during construction, only a small amount of water is needed to dilute, so that the construction viscosity and requirements of airless spraying can be achieved. The water-based high-solid-content epoxy micawHITE intermediate paint for heavy-duty corrosion protection prepared by the application has high film thickness for one-time construction, can reach a dry film of more than 180 microns, and can meet the construction requirements of heavy-duty corrosion protection paint, and the paint film is not cracked, has no thick edges, and does not sag.

The invention belongs to the technical field of electrochromic materials, and particularly relates to an electric leakage response film material and a preparation method and application thereof. The invention relates to an electric leakage response film material, which is a single composite layer and comprises a cross-linked polymer matrix formed by polyethylene glycol diglycidyl ether and polyether amine through an epoxy-amine reaction; the tungsten trioxide particles are dispersed in the cross-linked polymer matrix; and a source of lithium ions dispersed in the cross-linked polymer matrix.

Cathodic electrocoating composition with improved edge protection and coating appearance are provided. An exemplary cathodic electrocoating composition includes an aqueous carrier, a film forming binder dispersed in the carrier and including an epoxy-amine adduct and a blocked polyisocyanate crosslinking agent; a pigment paste; a water-soluble cellulose ether; and a cationic microgel dispersion which is prepared by a process comprising dispersing in aqueous medium a mixture of a cationic polyepoxide-amine reaction product which contains amine groups selected from the group consisting of primary amine groups, secondary amine groups, and mixtures thereof and a polyepoxide crosslinking agent and heating the mixture to a temperature sufficient to crosslink the mixture to form the cationic microgel dispersion. The water-soluble cellulose ether may be hydroxyethyl cellulose.

The invention discloses a two-component water-based epoxy thermal-insulation sealing coating and a preparation method thereof, the two-component water-based epoxy thermal-insulation sealing coating comprises a component A and a component B in a mass ratio of 1: 1, and the component A and the component B comprise the following raw materials in percentage by weight: the component A: 20-50% of water-based epoxy resin emulsion; 2-20% of micron-sized hollow glass beads; 1 to 10% of nano-scale aerogel powder; 1.5%-30% of perlite; 1.5%-30% of sepiolite; and the balance of water. A proper amount of dispersant; the component B comprises 20-80% of a waterborne epoxy amine curing agent; and 20-80% of water. The two-component water-based epoxy heat-preservation sealing coating has a compact cross-linked network, has good adhesive force and permeability on the surface of concrete, has the effects of sealing, preventing moisture and preventing steel bars on the surface layer of the concrete from rusting, has good adhesive property on a heat-preservation material, and is also suitable for being used as an adhesive material of an environment-friendly water-based heat-preservation coating. The cured thermal insulation coating not only has better thermal insulation performance, but also has higher hardness and strength, and has better capability of preventing moisture and condensation from permeating.

The preparation method comprises the following steps: firstly, synthesizing an epoxy adduct intermediate product from itaconic acid, an alcohol ether solvent and bisphenol A type epoxy resin; carrying out free radical polymerization on the intermediate product and other acrylic acid monomers to form acrylic acid modified epoxy resin; and finally, preparing the water-based acrylic acid modified epoxy resin emulsion by adopting an external epoxy emulsifier through a phase inversion method. The emulsion prepared by the invention has higher glass-transition temperature and higher surface drying and curing speed, and can meet the requirements on quick curing of a coating film on various base material workpieces and stacking resistance of the workpieces in the off-line process; a side chain contains a certain amount of carboxyl and hydroxyl, so that a coating film can be endowed with excellent adhesive force, and good adhesion on various base materials is realized; the resin structure contains a certain amount of bisphenol A epoxy resin, and has good compatibility and uniform coating film after being cured with an epoxy-amine curing agent.

The utility model relates to the technical field of wastewater filtration and recovery, and provides a waste water recycling system for an epichlorohydrin rectifying still, which is used for recycling the wastewater of the epichlorohydrin rectifying still and comprises a security filter I, an electrodialysis device, a waste water recycling device and a waste water recycling device, the electrodialysis device is used for separating organic matters and high-salinity water in the wastewater, the filter device I is communicated with the electrodialysis device through a booster pump I, the membrane concentration piece I is communicated with the filter device I through a high-pressure pump II, and the membrane concentration piece I is used for separating moisture and organic matters in the wastewater. The problem that wastewater generated in the production process of epoxy aminopropane cannot be purified and recycled in the prior art is solved.

The invention relates to the field of textile dyeing and finishing, in particular to a preparation method of an anti-wrinkle, hydrophobic and anti-ultraviolet cotton fabric, which mainly comprises the following steps: jointly acting an epoxy amine crosslinking agent and double-end sulfydryl polyethylene glycol on the cotton fabric, and reacting under the action of a catalyst to obtain the anti-wrinkle, hydrophobic and anti-ultraviolet cotton fabric. After ring opening, the epoxy group can react with sulfydryl in the double-end sulfydryl polyethylene glycol and hydroxyl on the surface of the cotton fabric, a stable cross-linked structure is formed inside and outside the cotton fiber, and the crease resistance of the fabric is improved; after ring opening, an epoxy group and sulfydryl generate a thioether bond, the hydrophobic effect of the fabric is improved through an epoxy cross-linked structure and the thioether bond, and the fabric is softer in hand feeling through a polyethylene glycol structure. The prepared anti-wrinkle, hydrophobic and anti-ultraviolet cotton fabric has excellent anti-wrinkle, hydrophobic and anti-ultraviolet effects at the same time, is durable, anti-wrinkle, soft and comfortable, and is suitable for multiple fields.

The present invention relates to a reusable Ti<supgt;4+< / supgt>-modified tannic acid-chitosan composite membrane and its preparation and application. Specifically, a "one-pot" strategy is adopted, using chitosan and tannic acid as functional monomers and polyethylene glycol diglycidyl ether as a cross-linking agent. The three reaction monomers are dissolved in acetic acid solution and freeze-dried to form a solid membrane, and then it is heated for epoxy amine ring-opening reaction to obtain a tannic acid-chitosan composite membrane. Since the structure of tannic acid contains pyrogallol groups, which can chelate with titanium ions (Ti<supgt;4+< / supgt;) as ligands, a Ti<supgt;4+< / supgt>-modified tannic acid-chitosan composite membrane is further obtained. This composite membrane can be used as an adsorbent for immobilized metal ion affinity chromatography for the efficient enrichment of phosphopeptides in biological samples. The Ti<supgt;4+< / supgt>-modified tannic acid-chitosan composite membrane has a three-dimensional pore structure. Because Ti<supgt;4+< / supgt> and the pyrogallol ligand can form stable chelation bonds, after the phosphopeptides are eluted from the composite membrane, Ti<supgt;4+< / supgt> will not dissociate from the composite membrane, so it can be reused.

The invention belongs to the technical field of biodegradable lubricating oil, and particularly discloses biodegradable lubricating oil and a preparation method thereof. The biodegradable lubricating oil provided by the invention is prepared from the following components in parts by mass: 25 to 35 parts of modified composite vegetable oil, 2 to 8 parts of methacrylate grafted modified chitin nanocrystals, 4 to 9 parts of a thickening agent, 0.5 to 1.5 parts of an antioxidant and 0.5 to 1.0 part of a tackifier. According to the invention, the composite vegetable oil subjected to epoxy-amine ring opening modification is used as basic lubricating oil, and then methacrylate grafted modified chitin nanocrystals and other additives are introduced, so that the plant-based lubricating oil has high wear resistance and excellent extreme pressure property, and also has the properties of low condensation point, biodegradability and the like.

The present application relates to the technical field of material processing, and discloses a multi-color injection molding process for intelligent wearable equipment, which comprises the following steps: preparing hard granules by melt extruding polybutylene terephthalate resin and epoxy-containing styrene-acrylonitrile copolymer; preparing soft granules by mixing thermoplastic polyurethane elastomer and amino-terminated hyperbranched polyamide-ester auxiliary; laser etching the hard skeleton bonding surface to form microtexture; and using segmented speed control in the second injection molding, using the shear friction heat generated by high-speed pulse injection to activate the epoxy-amine chemical cross-linking reaction at the interface. The present application realizes the firm combination of hard and soft materials without adhesives through the synergistic mechanism of rheological matching and in-situ chemical bonding, significantly improves the bonding strength and moisture and heat aging resistance of the interface, simplifies the process flow, and is suitable for the precision manufacturing of intelligent wearable equipment.

The invention relates to the technical field of foam, and discloses antibacterial high-elasticity foam and a preparation method thereof, and the foam is prepared from the following raw materials: low-density polyethylene, aminated polyethylene, an epichlorohydrin modified ethylene-octene copolymer, a foaming agent, a sensitizing agent and an antioxidant. Aminated polyethylene and an epichlorohydrin modified ethylene-octene copolymer are introduced into raw material components of the antibacterial high-elasticity foam, an irradiation crosslinking process is combined, quaternization reaction of the aminated polyethylene and the epichlorohydrin modified ethylene-octene copolymer forms an antibacterial active center, and quaternary ammonium salt provides lasting antibacterial property; the epoxy-amido ring-opening reaction of the two is carried out to construct a covalent cross-linked structure to enhance the compressive deformation resistance of the material; the epoxy chloropropane modified ethylene-octylene copolymer and the low-density polyethylene matrix form an island structure, impact energy is absorbed through elastic deformation, and the rebound resilience of the material is improved. Through mutual cooperation of the raw materials, the antibacterial property, antibacterial durability and rebound resilience of the foam are effectively improved.

The invention discloses acetoacetic acid esterified water-borne epoxy resin in the technical field of epoxy resin, and the acetoacetic acid esterified water-borne epoxy resin is prepared from the following raw materials in parts by weight: 3-8% of an emulsifier, 0-25% of an epoxy compound, 40-60% of acetoacetic acid esterified epoxy resin, 0-10% of a solvent and 30-50% of deionized water. The problems that an existing waterborne epoxy system is insufficient in chemical resistance, an epoxy-amine system is slowly cured in a low-temperature and high-humidity environment, and the construction efficiency is affected are solved, multifunctional resin with dual reaction activity is created, and waterborne epoxy resin with the environment-friendly advantage is obtained by emulsifying the multifunctional resin through an emulsifier of a special structure.

The invention discloses a disposable isolation plug with long-acting aging resistance and a preparation process thereof, belongs to the technical field of isolation material preparation, and aims to solve the technical problem that the aging resistance and solvent resistance of a disposable isolation plug in the prior art need to be further improved. According to the invention, a silicon-oxygen hybrid triazine compound is adopted as a matrix, the silicon-oxygen hybrid compound is introduced to construct a stable spatial network, and silicon shell triazine microspheres and epoxy amine cured flexible particles are assisted to jointly adjust the interface structure and chain segment motion characteristics of the material; the obtained disposable isolation plug forms a structural system with balanced support and recoverable deformation capability, and all the components form a continuous and stable mechanical response path in the system, so that the material shows low compression permanent deformation rate and good size retentivity under the conditions of normal temperature, high temperature, soaking and aging.

A two-part epoxy resin composition is provided comprising: a first resin part comprising a modified hydroxy alkyl urethane and an epoxy component; and a second resin part comprising an amine component; wherein the modified hydroxy alkyl urethane is formed by a reaction between a (meth)acrylate monomer or oligomer and a hydroxy alkyl urethane having the formula: (Formula (I)); where: R1 is an amine residue; and R2 and R3 are the same or different and are selected from the group consisting of H, alkyl, and hydroxyalkyl.

The invention relates to the technical field of building materials, and particularly discloses epoxy cement composite mortar as well as a preparation method and application thereof. The epoxy cement composite mortar comprises a cement-based mortar component and a waterborne epoxy-amine system cross-linked polymer, the cement mortar comprises the following raw materials: Portland cement, medium sand, a filler, polyether polyol, poly (ethylene glycol) methyl ether methacryloyl acid, a defoaming agent and cellulose acetate butyrate. The waterborne epoxy-amine system cross-linked polymer comprises the following raw materials: waterborne epoxy resin, a polyamide curing agent, propylene glycol monomethyl ether and zinc acetylacetonate. The epoxy cement composite mortar obtained in the invention has good flowability and leveling property, can realize self-leveling construction, and has 7d and 28d compressive strength, bonding strength and breaking strength up to 50.1 MPa, 100.4 MPa, 8.1 MPa and 17.5 MPa to the maximum extent, and the strength of the epoxy cement composite mortar is improved.

Resins and formulations of individual monomers bearing both vinyl ester and epoxy functionality were either synthesized or formulated such that vinyl ester components capable of polymerizing by photo-induced, free radical polymerization were mixed with step-growth epoxy-amine systems, facilitating sequential cure. The vinyl ester component was photopolymerized using vat photopolymerization (VPP). Additionally, the preparation of bio-based photo curable thermosetting resins that have tailorable thermal and mechanical properties is provided. All monomers and polymers described herein are useful in a variety of applications, including additive manufacturing applications.