423 results about "Epoxy acrylate" patented technology

The invention relates to the technical field of electronic materials, in particular to a preparation method of low-halogen alkali-soluble photosensitive resin and solder resist ink. Comprising the following steps: adding amino resin, alcohol olefin and a catalyst A into a solvent, mixing, and carrying out an ether exchange reaction to obtain an initial etherified product; adding peroxide into the initial etherification product, and carrying out epoxidation reaction to obtain an epoxy resin intermediate; adding an olefine acid compound, a catalyst B and a polymerization inhibitor into the epoxy resin intermediate, and carrying out ring-opening esterification reaction to obtain an epoxy acrylate intermediate; and adding acid anhydride into the epoxy acrylate intermediate, and carrying out carboxylation reaction to obtain the low-halogen alkali-soluble photosensitive resin. The problem of high halogen content of the existing alkali-soluble photosensitive resin is solved, and the solder resist ink prepared from the alkali-soluble photosensitive resin has high sensitivity, high resolution, high heat resistance, high acid and alkali resistance and high electrical insulation property.

The invention relates to the technical field of protective glue, in particular to extreme high and low temperature impact resistant UV (ultraviolet) photocuring electronic protective glue which is prepared from the following raw materials in parts by weight: 30-50 parts of synergistically modified epoxy-urethane acrylate oligomer, 20-35 parts of composite active monomer, 1.5-5 parts of composite photoinitiator and 10-20 parts of core-shell structure inorganic composite filler, 0.6 to 2.2 parts of a silane coupling agent, 0.12 to 1.1 parts of an antioxidant and 0.11 to 1 part of a leveling agent; the preparation method of the synergistically modified epoxy-urethane acrylate oligomer comprises the following steps: reacting resin acid modified epoxy resin with phosphoric acid di (hydroxyethyl acrylate) ester at 80-90 DEG C, and introducing a phosphate group to obtain a phosphate modified epoxy acrylate intermediate; the protection glue unifies rigidity, flexibility and flame retardance on the molecular level through the cooperation of the hybrid oligomer and the core-shell filler, realizes high heat conductivity, strong adhesion and extremely low internal stress, and has extreme temperature impact resistance, long-term damp-heat aging resistance and high-reliability protection performance.

The invention discloses a low-temperature fast-curing two-component resin adhesive and a preparation method thereof, and belongs to the technical field of high polymer materials. The resin adhesive is formed by mixing a component A and a component B, the component A comprises epoxy-acrylate hybrid resin, a reactive diluent, a nano reinforcing filler and the like, and the component B comprises a modified aliphatic amine curing agent, a microcapsule low-temperature efficient accelerant, a Mannich base curing agent and the like. Through the synergistic effect of a quaternary curing system and in combination with the rigid-flexible balance design of the hybrid resin, rapid curing at low temperature is achieved, and high strength, high toughness and good storage stability are achieved. The resin adhesive is suitable for the fields of bonding of automobile parts, packaging of electronic elements, repairing of wind power blades, sealing of building structures and the like, and particularly solves the problems that a traditional resin adhesive is slow in low-temperature curing and insufficient in performance.

The invention discloses an HPVC power cable protection pipe and a preparation method thereof, and relates to the technical field of cable protection pipes. The HPVC power cable protection tube is at least prepared from the following raw materials in parts by weight: 100 parts of high-strength polyvinyl chloride, 35 to 45 parts of epoxy acrylate rubber, 5 to 8 parts of vinyl chloride-g-acrylate copolymer, 8 to 12 parts of epoxidized soybean oil, 3 to 5 parts of calcium-zinc composite stabilizer, 5 to 15 parts of modified hydrotalcite, 0.1 to 0.5 part of beta-diketone, 0.8 to 1.5 parts of calcium stearate and 10 to 20 parts of flame retardant. 12 to 15 parts of modified nano calcium carbonate, 5 to 8 parts of talcum powder, 0.6 to 1.2 parts of antioxidant, 1 to 2 parts of anti-aging agent 4010 and 0.5 to 1.5 parts of ultraviolet light absorber UV531; the modified hydrotalcite is obtained by adding a mixed solution of calcium nitrate and lanthanum nitrate, a sodium hydroxide solution and a sodium bicarbonate solution into a lauryl sodium sulfate solution, mixing and aging, and then carrying out a post-treatment process. The HPVC power cable protection tube prepared by the invention has relatively high strength, good mechanical properties, weather resistance and cold resistance, and long service life.

The invention discloses an aluminum substrate UV matt finish paint and a preparation process thereof, and relates to the technical field of paints.The aluminum substrate UV matt finish paint is prepared from, by mass, 10%-20% of modified polyurethane acrylate, 25%-32% of high-functionality aliphatic polyurethane acrylate, 18%-30% of special modified epoxy acrylate resin, 0.5%-2% of dispersing agent, 0.1%-0.5% of defoaming agent, 1%-3% of anti-settling powder and the balance water. The paint is prepared from the following components in percentage by weight: 10 to 15 percent of magnesium silicate mineral, 1 to 10 percent of matting powder, 0.2 to 1 percent of 1-hydroxycyclohexyl phenyl ketone, 0.5 to 3 percent of trimethylbenzoyl-diphenyl phosphine oxide, 1 to 3 percent of acrylate flatting agent, 0.2 to 1.2 percent of polyurea modified polyurethane rheological agent and 5 to 15 percent of trimethylolpropane triacrylate. According to the UV matte finishing paint disclosed by the invention, through compounding of ternary resin and enhancement of nano silicon dioxide, a rigid and tough cross-linked network is constructed, a paint film is free of cracks when being bent at 180 degrees, the adhesive force reaches grade 0, and a coating is resistant to acid and alkali etching liquid and free of corrosion by cooperating with a silane coupling agent and a light stabilization system, and the color difference is delta Elt after the UV matte finishing paint is subjected to high temperature of 260 DEG C; and 1.5, the anti-yellowing performance is excellent.

The invention discloses an energetic slurry toughening and photocuring 3D printing method, relates to a preparation method of energetic slurry, and aims to solve the problems that an existing energetic material is poor in mechanical property, poor in toughness and easy to crack; the particles are fast to settle in the light-cured resin, the stability is poor, and the printing precision is poor. The invention develops a photocuring high-energy resin for photopolymerization additive manufacturing. The composition contains a high-energy filler, an acrylate adhesive, whiskers and an inert plasticizer. The material has the characteristics of compatibility, printability and mechanical property, and the possibility of printing increasingly complicated high-energy articles is proved through experiments. The preparation method of the light-cured resin comprises the following steps: adding the low polymer bisphenol A epoxy acrylate and the six-functionality polyurethane acrylate; diluting monomers including 1, 6-hexanediol diacrylate and trimethylolpropane triacrylate; uniformly mixing an auxiliary agent, a thickening agent and a dispersing agent, and magnetically stirring for 30 minutes to obtain the light-cured resin. A preparation method of the energetic slurry comprises the following steps: mixing light-cured resin, whiskers, an inert plasticizer, energetic particles, a photoinitiator and a light absorber, and uniformly stirring to obtain the energetic slurry; after the energetic slurry is used for 3D printing, a sample piece is obtained, the yield reaches 95%-100%, the cost is low, preparation is easy, and the method can be applied to the field of energetic slurry 3D printing.

The invention relates to the technical field of UV coatings, in particular to a waterproof wear-resistant UV coating for a floor and a preparation method of the waterproof wear-resistant UV coating. The waterproof and wear-resistant UV coating for the floor is prepared from the following raw materials in parts by mass: 30 to 60 parts of polyurethane acrylate, 20 to 40 parts of fluorinated epoxy acrylate oligomer, 20 to 40 parts of pentaerythritol tetraacrylate, 1 to 5 parts of tetraethoxysilane, 15 to 25 parts of hollow glass beads, 1 to 3 parts of ammonia water, 1 to 2 parts of trifluoropropane trimethoxysilane and 1 to 2 parts of amino-terminated polyamidoamine. The coating is prepared from 1-3 parts of graphene oxide, 1-2 parts of a photoinitiator, 1-2 parts of polytetrafluoroethylene wax, 0.5-1.5 parts of a dispersing agent, 1-2 parts of a flatting agent and 1-2 parts of a defoaming agent. The waterproof coating is excellent in waterproof effect, high in adhesive strength and excellent in dimensional stability; when the coating is subjected to mechanical actions such as friction and impact, the surface of a coated object is comprehensively protected, the wear rate is remarkably reduced, and the wear resistance is improved.

The invention discloses a high-weather-resistance photocuring coating with radar infrared stealth and intelligent anti-counterfeiting functions and preparation, and relates to the technical field of special functional materials. According to the coating, stealth, anti-counterfeiting and extreme environment tolerance are realized through multi-component collaborative design: matrix resin is prepared by compounding organic fluorine modified epoxy acrylate and polyurethane acrylate, and trifluoro propyl trimethoxy silane and polyoxyethylene ether block copolymer are introduced, so that weather resistance is improved; the photo-initiation system contains a free radical / cation composite initiator and a low-temperature initiator, and supports wide-temperature-range curing. The functional filler comprises a core-shell complex and carbon nanotube / graphene composite powder, and uniform dispersion of the filler is realized through a gradient grinding process. The method is suitable for military equipment camouflage, aerospace protection and criminal investigation anti-counterfeiting, 800-1400 [mu] m thermal radiation matching, radar wave absorption and mobile phone camera readable encryption information are achieved, and an innovative solution is provided for high-end equipment protection and information safety.

The invention discloses a two-component photoinduced energy storage diffuse reflection nano coating as well as a preparation method and application thereof, and belongs to the technical field of building materials. Comprising prime paint and surface paint, the prime paint comprises 45-55 parts of paint emulsion, 30-40 parts of titanium dioxide, 5-10 parts of precipitated barium sulphate powder, 5-10 parts of pearl powder, fumed silica, an anti-settling agent, a light stabilizer, a dispersing agent and a coalescing agent; the surface layer coating is prepared from 55 to 65 parts of coating emulsion, 20 to 30 parts of alkaline earth aluminate, 10 to 15 parts of hollow glass beads, 5 to 10 parts of pearl powder, an anti-settling agent, a light stabilizer, a dispersing agent and a coalescing agent; the coating emulsion comprises acrylic resin and epoxy acrylate; the coating disclosed by the invention has excellent photoinduced energy storage performance and a good diffuse reflection effect, and can meet illumination requirements in environments such as underground parking lots, underground commercial plazas, traffic tunnels, civil air defense projects or military underground facilities.

The invention belongs to the technical field of insulating materials, and particularly relates to a high-voltage-resistant wear-resistant insulating photocureable coating, a preparation method thereof and a power battery shell coating. The high-pressure-resistant wear-resistant insulating photocureable coating is formed by mixing sulfonated bisphenol A epoxy acrylate, modified polyurethane acrylate and a photoinitiator; the sulfonated bisphenol A epoxy acrylate is prepared by carrying out epoxy ring-opening reaction on bisphenol A epoxy resin and 2-acrylamide-2-methylpropanesulfonic acid under the catalytic action; and the modified polyurethane acrylate is bifunctional organic silicon grafted polyurethane acrylate. A coating for a power battery shell, which is formed by the high-voltage-resistant wear-resistant insulating photocureable coating disclosed by the invention, is excellent in insulating property, can meet the insulating requirement of the power battery shell under a 800V framework at the present stage, and in addition, the formed coating has excellent wear resistance and shows good application and popularization prospects.

The invention particularly relates to a UV-cured epoxy resin material for 3D printing and a preparation method of the UV-cured epoxy resin material. The epoxy resin material is prepared from the following raw materials in parts by weight: 60 to 65 parts of epoxy acrylate resin, 30 to 35 parts of epoxy resin, 2 to 5 parts of ANFs / graphene / MoS2 composite lubricant, 4 to 6 parts of flexibilizer, 3 to 5 parts of repairing agent, 3 to 5 parts of spiro orthoester, 1 to 3 parts of initiator, 0.6 to 1.5 parts of tetrahydrofuran acrylate and 0.1 to 1 part of rheology modifier. The UV-cured epoxy resin material for 3D printing obtained by the scheme has good toughness, impact resistance and wear resistance, and has good self-recovery capability and high long-term reliability under a heating condition for conditions such as slight scratches and cracks in 3D printing application.

The invention provides LED-UV (Light Emitting Diode-Ultraviolet) curing ink as well as a preparation method and application thereof, and the LED-UV curing ink is prepared from the following components in parts by weight: 30 to 50 parts of modified polyurethane acrylate resin, 15 to 30 parts of modified epoxy acrylate resin, 10 to 15 parts of amino resin, 15 to 30 parts of acrylate monomer, 6 to 10 parts of photoinitiator, 1 to 3 parts of adhesion promoter, 2 to 4 parts of coupling agent, 0.5 to 1 part of defoaming agent and 1 to 2 parts of flatting agent. The modified polyurethane acrylate resin is hydroxyl and / or carboxyl modified polyurethane acrylate resin; the modified epoxy acrylate resin is polyurethane modified epoxy acrylate resin. After the ink is photo-cured, a paint film has good flexibility, adhesive force and chemical resistance; the hardness, the curing speed and the chemical resistance of a paint film can be improved; the adhesive force to a base material can be promoted; and the water resistance and the wine soaking resistance of a paint film are enhanced.

The invention discloses a UV-cured high-weather-resistance optical thin film and a preparation method thereof, and relates to the technical field of optical thin films. The optical film is prepared by taking polyethylene glycol terephthalate as a base material and coating the base material with a UV curing coating, and the UV curing coating comprises the following raw materials in parts by weight: 15-20 parts of aliphatic polyurethane acrylate, 5-8 parts of perfluorobutyl ethyl acrylate, 8-12 parts of hydroxyethyl acrylate, 6-10 parts of 1, 2, 4-trimethyl-1, 3-pentanediol monoisobutyrate, 1-3 parts of 1, 2, 4-trimethyl-1, 3-pentanediol monoisobutyrate, 1-3 parts of 1, 2, 4-trimethyl-1, the invention relates to a UV (ultraviolet)-resistant coating which is prepared from the following raw materials in parts by weight: 1-2 parts of 2, 6-hexanediol diacrylate, 5-8 parts of trimethylolpropane triacrylate, 30-40 parts of modified epoxy acrylate, 1-2 parts of a silane coupling agent KH-570, 2-3 parts of a photoinitiator 1173, 0.5-1.2 parts of a modified ultraviolet absorbent UV-327, 0.8-1.5 parts of a hindered amine light stabilizer 540, 0.3-0.8 part of an antioxidant 1010, 0.09-0.12 part of an ultraviolet absorbent Tinuvin400 and 0.2-0.5 part of polyether modified polydimethylsiloxane. According to the UV-cured high-weather-resistance optical thin film, polyethylene glycol terephthalate is used as a base material, key raw materials such as a UV-cured coating with a scientific formula, modified epoxy acrylate and the like are finely prepared, a two-stage curing process is adopted, and the weather resistance is excellent.

The invention discloses nano UV light-cured printing ink and a preparation method thereof, and relates to the technical field of printing ink preparation. The nano UV light-cured printing ink is prepared from nano UV light, the invention discloses a UV (ultraviolet) photoinitiator, which is prepared from the following raw materials in parts by weight: 20 to 40 parts of polyurethane acrylate oligomer, 15 to 30 parts of modified bisphenol A type epoxy acrylate, 10 to 15 parts of tripropylene glycol diacrylate, 5 to 10 parts of ethoxylated trimethylolpropane triacrylate, 5 to 15 parts of modified nano titanium dioxide, 3 to 8 parts of nano silver wire, 2 to 5 parts of photoinitiator 1173 and 1 to 3 parts of benzoin dimethyl ether. The invention relates to a silver-loaded zirconium phosphate composite material which is prepared from the following components in parts by weight: 0.5-2 parts of polyether modified polydimethylsiloxane, 0.3-1 part of a defoaming agent, 1-3 parts of a dispersing agent, 1-5 parts of silver-loaded zirconium phosphate, 0.5-2 parts of an antioxidant 1010, 0.5-2 parts of a coupling agent KH-550 and 10-25 parts of propylene glycol methyl ether acetate. The raw materials are scientifically proportioned and contain various modified components, and parameters of each step are clear. The preparation method is reasonable in process, the performance of the ink is improved through multi-step modification, and the obtained ink is good in dispersity and compatibility, high in curing efficiency and excellent in comprehensive performance and has good practicability and innovativeness.

The invention relates to high-adhesion weather-resistant water-based ink and a preparation process thereof, and relates to the field of ink materials and preparation, and the high-adhesion weather-resistant water-based ink is prepared from the following raw materials in parts by mass: 25-40 parts of waterborne polyurethane, 10-20 parts of waterborne acrylate, 35-50 parts of water-based color paste, 1-4 parts of auxiliaries and water; the water-based acrylate is obtained through emulsion polymerization, and polymeric monomers comprise epoxy acrylate, hydroxyethyl acrylate, pentaerythritol tetraacrylate and acrylic acid; the epoxy acrylate comprises fatty acid modified epoxy diacrylate. The preparation method comprises the following steps: adding the water-based polyurethane resin and the water-based acrylate into water, stirring, adding the water-based color paste, stirring, adding the auxiliary agent, stirring, adjusting the viscosity, stirring, and filtering to obtain the high-adhesion weather-resistant water-based ink. The water-based ink has the effect of improving the adhesive force and weather resistance of the water-based ink.

The invention discloses a UV-curable conductive polyurethane acrylate coating and a preparation method thereof, and relates to the technical field of photocureable coatings. The invention relates to a UV curing conductive polyurethane acrylate coating, which comprises a light-cured resin, a polyaniline coated carbon nanotube, a reactive diluent, a photoinitiator, an organosilicon leveling agent and a defoaming agent, the light-cured resin is prepared by mixing a polyurethane prepolymer, an epoxy acrylate resin and dihydroxy acrylate, and the polyurethane prepolymer is prepared by mixing the polyurethane prepolymer, the epoxy acrylate resin and the dihydroxy acrylate. The polyaniline coated carbon nano tube is formed by coating and modifying a carbon nano tube by aniline and a doping agent. By adopting the scheme, not only can the conductivity of the coating be improved through the polyaniline coated carbon nanotubes, but also the light-cured resin and the polyaniline coated carbon nanotubes can form a three-dimensional network structure of a conductive filler / resin base material, so that the mechanical property of the coating can be improved; further, the preparation of the UV curing conductive coating with high conductivity and mechanical property is facilitated.

The invention provides a notebook keyboard composite skin-touch paint film and a preparation process thereof. The notebook keyboard composite skin-touch paint film comprises a primer layer, a middle paint layer and a UV skin-touch finish paint layer which are sequentially arranged on the surface of a notebook keyboard base material, the primer layer is prepared from the following components in percentage by weight: 20 to 30 percent of hydroxy acrylic resin, 15 to 25 percent of modified epoxy acrylate, 5 to 10 percent of vinyl modified fumed silica, 5 to 10 percent of fluorosilicone resin, 5 to 10 percent of epoxy phosphate, 5 to 10 percent of filler, 15 to 25 percent of solvent A, 2 to 4 percent of curing agent, 0.1 to 0.3 percent of flatting agent and 0.1 to 0.3 percent of defoaming agent; the middle paint layer is prepared from the following components: 40 to 50 percent of acrylic polyurethane resin, 12 to 16 percent of filler, 1 to 3 percent of cerium oxide, 7 to 12 percent of laser carving toner, 1 to 3 percent of dispersing agent, 20 to 30 percent of solvent B, 0.1 to 0.3 percent of plasticizer, 0.1 to 0.3 percent of flatting agent and 0.1 to 0.3 percent of defoaming agent; the UV skin-touch finish paint layer is prepared from the following components: 52 to 55 percent of polyurethane acrylate resin, 15 to 25 percent of reactive diluent, 2 to 4 percent of photoinitiator, 10 to 15 percent of skin-touch additive, 5 to 10 percent of filler, 0.1 to 0.3 percent of flatting agent and 0.1 to 0.3 percent of antioxidant. The paint film provided by the invention has the advantages of favorable wear resistance, favorable adhesive force and favorable hand feeling.

The embodiment of the invention provides a UV-cured matte skin-touch coating as well as a preparation method and application thereof. The UV-cured matte skin-touch coating is prepared from the following raw materials in parts by weight: 30-55 parts of urethane acrylate; 20 to 35 parts of epoxy acrylate; 3 to 6 parts of a photoinitiator; 5 to 10 parts of tris (2-hydroxyethyl) isocyanuric acid triacrylate; 3 to 8 parts of fluorosilicone modified acrylate; 4-7 parts of modified boron nitride; wherein the modified boron nitride is silane coupling agent surface modified boron nitride. According to the UV-cured matte skin-touch coating disclosed by the embodiment of the invention, based on the combined action of the (2-hydroxyethyl) isocyanuric acid triacrylate, the fluorosilicone modified acrylate and the modified boron nitride, the coating has ultra-low gloss and also has high hardness, high temperature resistance and fine and smooth skin touch.

The invention relates to the technical field of coatings, and discloses a composition for a polyurethane waterproof coating, the polyurethane waterproof coating as well as a preparation method and application of the polyurethane waterproof coating. The composition contains a main agent and an auxiliary agent, the main agent is formed by polymerizing raw material components including polyol, diisocyanate A, bisphenol A epoxy acrylate and a prepolymer; the prepolymer is prepared by a method comprising the following steps: in the presence of a polymerization catalyst, carrying out contact reaction on bisphenol A epoxy resin, polyaspartic acid ester, diisocyanate B and an isocyanate tripolymer to obtain the prepolymer, the use amount molar ratio of the bisphenol A epoxy resin to the polyaspartic acid ester to the diisocyanate B to the isocyanate tripolymer is 1: (0.6 to 1.5): (0.5 to 1): (0.05 to 0.5). The coating provided by the invention is high in modulus, and has higher tensile strength, hardness and waterproof performance.

The invention belongs to the technical field of UV ink formula design and digital printing application, and particularly relates to scratch-resistant UV ink, a preparation method thereof and application of the scratch-resistant UV ink to digital printing. The scratch-resistant UV ink comprises the following raw materials in parts by weight: 15-25 parts of epoxy acrylate; 10 to 20 parts of polyurethane acrylate; 15 to 25 parts of a bifunctional monomer; 5-10 parts of a monomer with three functional groups and more than three functional groups; 3 to 5 parts of an alpha-hydroxy ketone photoinitiator; 2 to 4 parts of an acyl phosphorus oxide photoinitiator; 2 to 5 parts of organically modified nano silicon dioxide; 0.1 part to 0.5 part of a flatting agent; 0.5 to 1.5 parts of a dispersing agent; 10 to 15 parts of pigment; the bifunctional monomer is tripropylene glycol diacrylate; the monomer with three functional groups and more than three functional groups is trimethylolpropane triacrylate. The ink has pencil hardness greater than or equal to 3H and excellent flexibility, the adhesive force on substrates such as PC, PET, metal and the like reaches 0 level, the printing process is simplified, and the ink is suitable for digital printing in various scenes.

The invention relates to the technical field of high-end packaging and printing, and discloses a base material back coating and a preparation method thereof, and the base material back coating comprises the following components in parts by weight: 55-70 parts of mixed matrix resin formed by polar modified epoxy acrylate and perfluoropolyether acrylate according to a weight ratio of 4 / 1-9 / 1, according to the invention, self-stratification power generated by viscosity reduction in a heat leveling stage is utilized to drive the components to migrate directionally and construct a gradient interpenetrating network structure, so that the self-stratification effect is improved, and the self-stratification effect is improved; the coating is subjected to continuous chemical transition from the bottom anchoring layer to the surface shielding layer, interface stress concentration generated by physical layering is eliminated, and the interface bonding stability is improved on the premise that the protection strength of the ultrathin coating is guaranteed.

The invention relates to a preparation method of environment-friendly multifunctional printing ink based on excimer UV curing, and belongs to the field of printing ink preparation. The preparation method comprises the following steps: compounding a hydroxyl-containing aliphatic polyurethane acrylate prepolymer and a carboxyl-containing epoxy acrylate oligomer according to a specific ratio; and adding a compound photoinitiator, a modified nano silicon dioxide filler and other components, and carrying out secondary sanding, vacuum defoaming and other processes to obtain the ink. According to the method, the adhesive force of a base material is improved through a hydroxyl-carboxyl synergistic effect, the wear resistance and hardness of a film layer are enhanced through nanofiller modification and a gradient grinding process, and efficient curing under 172nm excimer ultraviolet light is realized by compounding a photoinitiator. The curing time of the prepared ink is less than or equal to 1.5 seconds (the film thickness is 10 microns), the pencil hardness is more than or equal to 3H, the acetone wiping resistance is more than or equal to 50 times, the solid content is 65-75%, no VOC (Volatile Organic Compounds) is discharged, the problems that the traditional UV ink is slow in curing and unbalanced in performance are solved, and the ink is suitable for the fields of high-speed printing, high-end packaging, electronic circuits and the like.

The invention discloses an epoxy acrylate high-molecular substance mixture for packaging an NTC (Negative Temperature Coefficient) temperature sensor and a preparation process of the epoxy acrylate high-molecular substance mixture, and belongs to the field of preparation of high-molecular compounds for packaging NTC temperature sensor chips. According to the present invention, the high hardness and the strong adhesion ability of the epoxy acrylate resin and the excellent flexibility, the excellent hydrophobicity, the excellent high and low temperature resistance and the excellent weather resistance of the phenyl organic silicon resin are well combined, the excellent physical property is provided, and the problem of poor compatibility of the organic silicon and the epoxy acrylate is solved by the multi-stage curing process of the UV curing and the thermal curing so as to achieve the good application prospect. And synergism enhancement of performance is realized.

The invention belongs to the field of adhesives, and particularly relates to a laser-curable epoxy adhesive as well as a preparation method and application thereof. The laser-curable epoxy adhesive is prepared from the following raw materials: low-viscosity epoxy resin, toughened epoxy resin, epoxy acrylate resin, dopamine modified graphene oxide nanosheets, a curing agent and a thermal initiator in a mass ratio of 1: (0.5-2): (0.75-3): (0.05-0.5): (0.75-2.5): (0.05-0.5): (0-1): (0-0.2): (0-0.15): (0-2) as well as optional epoxy diluent, stabilizer, coupling agent and filler. The laser-curable epoxy adhesive provided by the invention has high modulus and high Tg, and can be rapidly cured.

The invention provides a self-repairing scratch-resistant coating, a PVC decorative film and a preparation method of the PVC decorative film, and relates to the technical field of decorative films. The self-repairing scratch-resistant coating provided by the invention comprises flexible polyurethane acrylate, modified epoxy acrylate, a reactive diluent, a photoinitiator, a siloxane microcapsule repairing agent, a dynamic cross-linking agent, a flatting agent, an anti-fingerprint agent and butyl acetate. The coating can be efficiently repaired, meanwhile, the toughness of the coating can be improved through the flexible polyurethane acrylate, secondary damage after repairing is avoided, and the purpose of synergism of scratch resistance and self-repairing is achieved. The PVC decorative film provided by the invention adopts the self-repairing scratch-resistant coating, so that the surface hardness is improved, the scratch resistance is enhanced, and a scratch self-repairing technology is added, so that scratches are reversible, and the service life is prolonged.

The invention relates to the field of printing ink, and discloses cross-linked polymer micronized wax powder for printing ink and a preparation method thereof.According to the printing ink, a wax monomer is introduced into epoxy acrylate, and a core-shell polymer emulsion is prepared through a soap-free core-shell emulsion polymerization method, a polymer formed by butyl acrylate, acrylic acid, a functionalized silane coupling agent and a comonomer is taken as a shell, and the cross-linked polymer micronized wax powder for the ink is prepared by adopting a spray drying process; the functionalized silane coupling agent is prepared by reacting a modified silane coupling agent obtained by reacting vinyltrimethoxysilane with tetramethyldisiloxane with eugenol to prepare an eugenol-based modified silane coupling agent, and then reacting the eugenol-based modified silane coupling agent with isocyano ethyl methacrylate; the comonomer is prepared by reacting eugenol, cardanol and 1, 4-p-xylylene dichloride, and the obtained product has the antibacterial property, water resistance and adhesive force of a shell layer monomer and the mechanical property, heat resistance and antibacterial property of a core layer monomer.

The application discloses a kind of nano zinc oxide enhanced UV curing luminous ink and preparation method thereof, belong to ink technical field, the nano zinc oxide enhanced UV curing luminous ink, including the following raw materials: nano zinc oxide 15-21 parts;2-hydroxybenzophenone 3.6-7.8 parts;Isosorbide dimethyl ether 78-95 parts;Epoxy acrylate resin 18-27 parts;Polyester acrylate resin 32-38 parts;Acrylate 47-65 parts;Luminous powder 17-23 parts;Defoaming agent 0.6-1.2 parts;Dispersing agent 0.8-2.1 parts;Leveling agent 1.4-1.8 parts;Photoinitiator 0.6-0.9 parts.The application is short in total preparation time, and production efficiency is greatly improved;In addition, the application speeds up the curing speed, and the water resistance is also significantly improved;The dispersion rate of luminous powder is improved by the way of nano zinc oxide coated with luminous powder, so that the prepared nano zinc oxide enhanced UV curing luminous ink presents more uniform fluorescent effect.

The invention relates to the technical field of optical functional film manufacturing, in particular to a multi-layer structure of a high-light-transmittance composite brightness enhancement film and a processing method of the multi-layer structure, and the multi-layer structure sequentially comprises a surface hardening layer, a high-refractive-index composite layer, a light diffusion layer, a conductive functional layer, a microstructure layer and a bonding layer from a light incident side to a light emergent side; the surface hardening layer is composed of fluorine-containing modified polyethylene glycol terephthalate (PET), the high-refractive-index composite layer comprises a composite layer of rutile type nano titanium oxide particles and methyl phenyl silicone resin, and the light diffusion layer is a cross-linked layer formed by mixing bisphenol A type epoxy acrylate and trimethylolpropane triacrylate according to the mass ratio of 4.2: 1. The conductive functional layer is an indium tin oxide (ITO) thin film, the microstructure layer is a prism array layer formed by nickel template imprinting, the optical performance of the film is remarkably improved, and the light transmittance of the wavelength of 550 nm reaches 93.5%-93.8% through the optical matching design of the composite structure and is improved by 3-5% compared with similar products.

The invention discloses a self-expanding water shutoff material for tunnels and a preparation method of the self-expanding water shutoff material, and belongs to the field of polymer composite materials. Modified polyurethane in the self-expanding water shutoff material is prepared through vacuum dehydration of polyether glycol, chain extension of diisocyanate, reaction of a carboxyl-containing chain extender and acetone, dropwise addition and grafting of nano silicon dioxide dispersion liquid, neutralization of triethylamine and reduced pressure distillation. The modified epoxy acrylate is prepared by mixing epoxy resin and methyl methacrylate, stirring a silane coupling agent and an absolute ethyl alcohol solution, initiating polymerization by benzoyl peroxide, dropwise adding nano-montmorillonite dispersion liquid for reaction, stirring acrylic acid and a polymerization inhibitor hydroquinone, and performing reduced pressure treatment. The material formula comprises the two modified macromolecules, super absorbent resin, a filler, a plasticizer, an initiator, a cross-linking agent, a defoaming agent and deionized water. The prepared material has the advantages of high expansion rate, excellent water resistance, strong adhesive property and controllable curing time, and is suitable for the scenes of tunnel water inrush plugging, lining crack repairing, water-rich fault zone advanced grouting and the like.

The invention discloses an alkali-soluble flexible photosensitive resin and a photosensitive solder resist ink composition. The preparation method of the alkali-soluble flexible photosensitive resin comprises the following steps: in an organic solvent, carrying out ring-opening reaction on flexible epoxy resin and a hydroxyl linking agent to obtain an epoxy acrylate solution with hydroxyl; carrying out ring-opening reaction on the epoxy acrylate solution and rigid epoxy resin to obtain a flexible epoxy acrylate solution; carrying out ring-opening reaction on the flexible epoxy acrylate solution and unsaturated monocarboxylic acid in the presence of a polymerization inhibitor to obtain a photosensitive flexible epoxy acrylate solution; and reacting the photosensitive flexible epoxy acrylate solution with polybasic acid anhydride to obtain the alkali-soluble flexible photosensitive resin solution. The flexibility of the solder resist ink is improved by introducing the connecting agent with hydroxyl and the epoxy resin containing a rigid structure.