364 results about "Methacrylamide" patented technology

The invention discloses a preparation method of a solid-state polymer composite electrolyte material and application of the solid-state polymer composite electrolyte material in an all-solid-state battery, and relates to the technical field of all-solid-state lithium ion batteries, and the preparation method comprises the following steps: firstly synthesizing a skeleton filler, adding an acid solution, and then carrying out ultrasonic treatment, soaking, centrifuging and washing to obtain an acid-modified skeleton filler; dispersing the acid-modified skeleton filler in an organic solution, adding a lithium salt, stirring, centrifuging, and washing to obtain a lithiated skeleton filler; weighing an electrolyte salt, adding the electrolyte salt into the polymer precursor, adding the lithiated skeleton filler, uniformly mixing, and drying to obtain a dried product; and finally, rolling the dried product into a thin film to obtain the solid polymer composite electrolyte thin film. According to the preparation method of the solid polymer composite electrolyte material, the ionic conductivity and Li < + > transference number of a solid polymer composite electrolyte thin film prepared by inducing polymer precursor polymerization through cations and compounding the inorganic filler at normal temperature are superior to those of a commercial PP film and a poly N, N-dimethylacrylamide film.

A photocurable resin composition for nails or artificial nails, contains the following components (A) to (D): a component (A): a urethane (meth)acrylate oligomer, a component (B): a monomer selected from the group consisting of a (meth)acrylate monomer, a (meth)acrylamide monomer, and (meth)acrylic acid (excluding the component (A)), a component (C): polyglycerol having no (meth)acryloyl group and / or a compound having a polyglyceryl ether skeleton having no (meth)acryloyl group, a component (D): a photoinitiator. A molecular weight of the component (C) is 200 or more.

The invention discloses a high-temperature-resistant and salt-resistant fracturing fluid and a preparation method thereof, and relates to the technical field of oil field fracturing fluids. When the high-temperature-resistant and salt-resistant fracturing fluid is prepared, sodium 3-chloro-2-hydroxypropane sulfonate, N, N-dimethylacrylamide and ethylene glycol react to prepare a quaternized solid product, and then the quaternized solid product reacts with 1-bromooctadecane to prepare an amphoteric hydrophobic monomer; guar gum powder reacts with 3-(1-naphthyloxy)-1, 2-epoxypropane to prepare naphthyloxy functionalized guar gum, and then the naphthyloxy functionalized guar gum, acrylamide and an amphoteric hydrophobic monomer are subjected to initiated polymerization through ceric ammonium nitrate to prepare modified guar gum; enabling zirconium oxychloride octahydrate, titanium chloride, lactic acid, ethanediamine and glycerol to react to prepare an organic zirconium cross-linking agent; and finally, mixing the modified guar gum, an organic zirconium cross-linking agent, sodium thiosulfate, sodium bromate, a surfactant and water to prepare the high-temperature-resistant and salt-resistant fracturing fluid. The high-temperature-resistant and salt-resistant fracturing fluid prepared by the invention has excellent high-temperature resistance and salt resistance.

Method for generating a porous injectable scaffold that includes providing a liquid composition of 2 phases at a temperature below 25° C., of Newtonian behavior, where the composition comprises:a liquid dispersant phase at room temperature formed by a gelatin with a low melting point, less than 15° C., functionalized with methacryloyl or methacrylamide groups; and a photoinitiator;and a dispersed phase, of microdroplets or beads in solid state, of a gelatin solution with a melting point greater than 25° C.;initiating the polymerization of the dispersing phase by light radiation; raising the temperature to 35-40° C. and allowing melting of the dispersed phase; and obtaining a porous scaffold.The formed porous scaffold and its use as a biological support for tissue regeneration / generation; as a biological matrix as a support for cells, for cell invasion; as an acellular biological matrix, a biological matrix as a mechanical support and / or a biological matrix for active components.

The invention discloses heat-resistant polymethyl methacrylate, a preparation method thereof and an optical film. The heat-resistant polymethyl methacrylate comprises a methyl methacrylate repetitive unit, a glutarimide repetitive unit and an N-methyl methacrylamide repetitive unit, and the sum of the number of the glutarimide constitutional unit and the number of the N-methyl methacrylamide constitutional unit is 1-20 mol% of the total number of the constitutional units. The glutarimide structural unit can be obtained by further cyclization reaction of an N-methyl methacrylamide structural unit, and the cyclization rate can be increased to 80-90% by adding a cyclization accelerator such as triethylamine, so that the thermal stability of the resin is improved, and the water absorption rate is reduced. The material can be used for preparing an optical film, has excellent heat resistance and moisture resistance, and is suitable for the field of optical display.

The invention discloses a flexible self-powered triboelectric sensor, and belongs to the technical field of sensors, the flexible self-powered triboelectric sensor comprises a first silicone rubber layer, a hydrogel layer, a conductive silica gel electrode layer and a second silicone rubber layer which are sequentially arranged from top to bottom, the hydrogel layer is prepared from N-isopropylacrylamide (NIPAM), N, N-dimethylacrylamide (DMAA), N, N-dimethylacrylamide (DMAA), N, N-dimethylacrylamide (DMAA) and N, N-dimethylacrylamide (DMAA); n, N '-methylene bisacrylamide (MBA) and sodium alginate (SA) are copolymerized to form a three-dimensional network, in-situ embedding of biological source orange juice carbon dots is initiated through ultraviolet light, and the first silicone rubber layer, the hydrogel layer, the conductive silica gel electrode layer and the second silicone rubber layer are bonded and fixed on the periphery through silica gel. The invention discloses a green, safe and high-performance flexible triboelectric sensor, which realizes excellent electrical output through a simple process and is combined with an advanced signal processing technology to realize accurate recognition of multiple key physiological signals by a single sensor.

A geopolymer precursor includes an alkaline reactive solid material containing aluminum, silicon, and oxygen, and a fluid loss control material having an ionic stability property that has a first value in water and a second value in a 3M solution of NaOH, wherein a ratio of the second value to the first value is in a range of 0.5 to 2.0. The fluid loss control material may be, or may include a crosslinked polymer, which may include a reaction product of one or more of acrylamide, 2-acrylamido-2-methyl propane sulfonic acid, N,N‑dimethylacrylamide, N,N‑diethylacrylamide, vinyl acetate, or another monomer, and a crosslinker including one or more of methylene bisacrylamide, triallyl amine, pentaerythritol allyl ether, triallyl-triazine-trione, or another material. The geopolymer precursor may include an activator, an alkaline solution having pH of at least about 9, or both.

The invention discloses synthetic resin and an adhesive for a medical oxygen anaesthetic mask as well as a preparation method and application of the synthetic resin and the adhesive, and the synthetic resin is prepared by the following steps: carrying out ring-opening reaction on KH-560 and KH-550 to generate a siloxane intermediate with hydroxyl, and modifying polyurethane by using the siloxane intermediate; the adhesive comprises the following components in parts by weight: 100 parts of synthetic resin, 45-95 parts of a reactive diluent and 4-14 parts of a photoinitiator, and the reactive diluent mainly comprises isobornyl acrylate, N, N-dimethylacrylamide, tetrahydrofuran acrylate and hydroxyethyl acrylate; compared with the prior art, the adhesive prepared from the synthesized modified resin has the advantages that the adhesive can be quickly cured under the irradiation of an LED lamp, the energy consumption is low, and automatic production is facilitated; the oxygen mask has the characteristics of good surface dryness, good flexibility, no blistering at constant temperature and humidity, firmness of a PC (Poly Carbonate) surface cup and a PVC (Polyvinyl Chloride) air bag for bonding the oxygen mask, and the like.

The invention relates to the technical field of well cementation admixtures, in particular to a high-temperature-resistant modified nano silicon dioxide polymer fluid loss agent and a preparation method of the high-temperature-resistant modified nano silicon dioxide polymer fluid loss agent. The preparation method comprises the following steps: adding 2-acrylamide-2-methyl-1-propanesulfonic acid and itaconic acid into deionized water, uniformly mixing, then adding N, N-dimethylacrylamide and modified nano silicon dioxide, uniformly mixing to obtain a mixed material, then adding an initiator into the mixed material in a nitrogen atmosphere, reacting to obtain a reaction product, and finally, adding a water reducer into the reaction product, and stirring to obtain the modified nano silicon dioxide / 2-acrylamide-2-methyl-1-propanesulfonic acid / 2-acrylamide-2-methyl-1-propanesulfonic acid composite material. And washing, filtering, drying and grinding the reaction product in sequence to obtain the product. The high-temperature-resistant modified nano silicon dioxide polymer fluid loss agent disclosed by the invention has good thermal stability, and can effectively resist high temperature of 180 DEG C, maintain excellent fluid loss reduction property and ensure the well cementation quality of an oil field when being added into well cementation cement paste with the addition amount of 2.5%-5.0%.

A radiation curable composition comprising at least one polymerizable compound and an adhesion promoter, characterized in that the adhesion promoter includes: —a polymerizable group selected from the group consisting of an acrylate, a methacrylate, an acrylamide, a methacrylamide, a styrene, a maleimide, a vinyl ether and a vinyl ester; and—an adhesion promoting group containing at least one nitrogen containing five or six membered heteroaromatic ring.

The invention belongs to the field of cement paste for well cementation of oil and gas wells, and particularly relates to medium-high temperature anti-gas channeling cement paste. The medium-high temperature anti-gas channeling cement paste comprises water and the following raw materials in parts by weight: 100 parts of oil well cement, 35-40 parts of a high-temperature strength stabilizer and 2-3 parts of an anti-gas channeling agent, the high-temperature strength stabilizer is prepared from SiO2 with the particle size of 75 to 100 mu m, SiO2 with the particle size of 23 to 38 mu m and SiO2 with the particle size of 0.1 to 10 mu m according to the mass ratio of 10 to (20 to 21) to (1.2 to 1.5); the anti-gas channeling agent is a copolymer of 2-acrylamide-2-methylpropanesulfonic acid, acrylamide and N, N '-dimethylacrylamide. The cement paste disclosed by the invention has relatively high fluidity, relatively good defoaming property, relatively high gas channeling prevention performance and relatively high high-temperature stability, has relatively high strength and gas channeling prevention performance after well cementation, can prevent the gas channeling problem of well cementation, and improves the well cementation quality.

The invention provides a transfer printing seal for a photoresist nano structure, a manufacturing method and a curved surface photoetching method, and the transfer printing seal comprises the following components in percentage by mass: 40%-70% of N, N-dimethylacrylamide, 30%-60% of 4-hydroxybutyl acrylate, 0.5%-2% of polyethylene glycol diacrylate and 0.5%-2% of a photoinitiator. In the curved surface photoetching process, the transfer printing seal is heated to 90 DEG C and then is conformally attached to the upper surface of the photoresist nano-structure, and the high modulus of the transfer printing seal protects the photoresist nano-structure from being damaged and deformed; the surface of the curved surface is heated, the transfer printing seal with the photoresist nanostructure is heated to 90 DEG C and then is attached to the surface of the curved surface in a conformal mode, the transfer printing seal is slowly peeled off at a constant speed, the reversible high adhesion switching ratio and the high modulus switching ratio can be achieved under thermal stimulation, high-yield picking and releasing of the microstructure are achieved, the transferred microstructure can be protected in the transfer printing picking stage, and the yield of the microstructure is improved. And in the transfer printing release stage, the photoresist nano-structure can be fully attached and conformal with the curved surface, so that high-yield preparation of the photoresist nano-structure on the curved surface is realized.

This application relates to liquid compositions comprising (meth)acrylate monomers and / or methacrylamide monomers and a solvent system comprising a mixture of aliphatic alcohols and alkylene carbonates. The liquid composition is useful as a monomer liquid component in two-part liquid-and-powder curable acrylic systems, in particular as used for the cosmetic treatment of fingernails and toenails. The invention further provides methods of forming a polymeric structure on a substrate, such as acrylic nail coatings, using the monomer liquid composition of the invention. The application further provides a novel additive for use in monomer liquid compositions.

The present invention relates to a polymer composition, a polymer slurry, a separator for a battery, and a battery, wherein the polymer composition may comprise a polymer component comprising: a first polymerization unit derived from an N-unsubstituted (meth)acrylamide group-containing monomer; a second polymerization unit derived from an N-2 substituted (meth)acrylamide group-containing monomer; and a third polymerization unit derived from a lactam group-containing monomer having 6 or more ring atoms.

A polyelectrolyte hydrogel coating with strong substrate binding performance and a method of manufacturing the same are provided. The method includes: 1) activating a substrate by applying oxygen plasma; and 2) dissolving a polycationic polymer, a polymeric monomer, a silane coupling agent and an initiator to obtain a precursor solution, vacuumizing the precursor solution to remove air bubbles, applying the vacuumized precursor solution to a surface of the substrate activated by the oxygen plasma, and performing an in-situ polymerization and curing process under nitrogen or rare gas atmosphere. The polymeric monomer includes at least one of: acrylamide, acrylic acid, hydroxyethyl methacrylamide, 2-acrylamido-2-methyl-1-propanesulfonic acid, polyethylene glycol (diol) diacrylate, 2-methacryloxyethylphosphocholine, 3-[[2-(Methacryloyloxy)ethyl]dimethylammonio]propane-1-sulfonate, and 3-[[2-(methacryloyloxy)ethyl]dimethylammonium] propionate. The silane coupling agent has a carbon-carbon double bond functional group.

A surface treatment agent containing a copolymer having a unit (A) based on a polymerizable vinyl monomer having a reactive silyl group and a unit (B) based on a (meth) acrylamide compound having a biocompatible functional group, the ratio of the unit (A) to all the units constituting the copolymer being 0.05-25 mol%, the ratio of the unit (B) to all the units constituting the copolymer is 30-99.95 mol%.

A polymeric adsorbent including a polymer having reacted units of a tetraethylenepentamine (TEPA), reacted units of a 3,5-diacrylamidobenzoic acid, and reacted units of a methacrylamide. The TEPA, the 3,5-diacrylamidobenzoic acid, and the methacrylamide have a molar ratio of 2 to 4:1 to 3:0.5 to 2. Reacted units of the TEPA and reacted units of the 3,5-diacrylamidobenzoic acid are covalently crosslinked, and reacted units of the TEPA and reacted units of the methacrylamide are covalently crosslinked. The polymeric adsorbent of the present disclosure can be used for water treatment.

The present invention addresses the problem of providing: a novel substance which is capable of solving the problems of conventional bismaleimides each having a dimer acid skeleton; a high-concentration composition of the substance; a curable composition which contains the composition; an adhesive agent or a sealing material; a cured article obtained by curing the composition or the like; and a semiconductor device or an electronic component which includes the cured article.　Provided are: a dimer acid-modified N-substituted (meth)acrylamide; a high-concentration composition of the dimer acid-modified N-substituted (meth)acrylamide; a curable composition which contains the composition; an adhesive agent or a sealing material; a cured article obtained by curing the composition or the like; and a semiconductor device or an electronic component which includes the cured article.

The invention provides a mussel bionic composite adhesive and a preparation method thereof, and belongs to the technical field of high-performance adhesives. The composite material is prepared from 88 parts by mass of premixed mother liquor, 3-6 parts by mass of a silane coupling agent KH-560 and 4-8 parts by mass of nano-hydroxyapatite, 3, 4-dihydroxy phenyl methacrylamide is taken as an adhesion function core of the premixed mother liquor, is cooperated with 2-ethylhexyl acrylate and isobornyl methacrylate, and is compounded with a specific composite photoinitiator, an antioxidant 1010 and an ultraviolet absorbent 328. The preparation method comprises the following steps: preparing premixed mother liquor under the dark condition of 30 DEG C, primarily dispersing the premixed mother liquor, the silane coupling agent and the nano-hydroxyapatite under normal pressure, and performing vacuum stirring, dispersing and degassing under-0.05 to-0.08 MPa. The adhesive has excellent adhesion to inorganic base materials such as hydroxyapatite and natural stone, has compressive strength of more than or equal to 22MPa and high elongation at break of 35-55%, has outstanding weather resistance and stable performance after long-term ultraviolet aging, and is suitable for the fields of medical bone repair material fixation, stone adhesion, high-end composite material forming and the like.

This invention relates to an aqueous polyurethane composition comprising: a liquid medium comprising at least one organic liquid having a solubility in water of ≥4 g organic liquid / 100 g water at 25°C, and water; at least one polyurethane polymer compound dispersed in the liquid medium; and optionally at least one coating formulation component. The polyurethane composition further comprises at least one thickener comprising at least one anionic polymer selected from anionic polyacrylamide, anionic polymethacrylamide, anionic polyacrylamide-polymethacrylamide, and / or a mixture of at least two thereof, and optionally, 0 to 0.12% by weight, preferably 0 to 0.05% by weight, more preferably 0 to 0.01% by weight, based on 100% of the total weight of the aqueous polyurethane composition, at least one compound selected from unbound or ionicly bound organic amines, ammonia, or a mixture of at least two thereof, wherein the aqueous polyurethane composition has a pH value ≤ 8.5, and wherein the at least one thickener is different from the at least one coating formulation component and the at least one polyurethane polymer. The present invention further relates to a kit-of-parts for preparing a waterborne polyurethane composition, a method for preparing a waterborne polyurethane composition, and the use of the waterborne composition.

The invention discloses composite hydrogel for wound repair as well as a preparation method and application of the composite hydrogel, and belongs to the technical field of medical materials. The preparation method comprises the following steps: mixing methylacryloylated gelatin, hydroxyethyl methylacrylate and oxidized dextran, adding copper sulfide nanoparticles, a cross-linking agent and a photoinitiator, uniformly stirring, placing in a mold, irradiating by adopting ultraviolet light, carrying out Schiff base reaction on an aldehyde group on an ODex chain and an amino group on a GelMA chain to form a dynamic covalent bond, and forming a reversible cross-linking point, so as to obtain the copper sulfide nanoparticle / GelMA composite hydrogel. The preparation method comprises the following steps: carrying out a copolymerization reaction on HEMA and methacryloyl on a GelMA molecular chain to form a stable covalent cross-linked network, effectively capturing CuS NPs through a physical effect and stably dispersing the CuS NPs in the network in the process, and soaking the cross-linked hydrogel in deionized water for balancing to obtain the target composite hydrogel. The composite hydrogel has excellent mechanical strength, pH response swelling property and biocompatibility, can realize efficient antibacterial and endogenous immune regulation by combining near-infrared photothermal therapy, and effectively promotes wound repair.

The present invention relates to a papermaking additive, a method for producing a papermaking additive, and paper. The present invention provides a papermaking additive which has less viscosity increase after long-term storage and exhibits excellent drainage and paper strength effects. A papermaking additive comprising a (meth)acrylamide-based polymer, the (meth)acrylamide-based polymer having starch (a1), (meth)acrylamide (a2), a polymerizable monomer having an amino group (a3), a polymerizable monomer having a carboxyl group (a4), and a polymerizable monomer having a sulfonic acid group (a5) as essential constituent components, the starch (a1) being two or more selected from the group consisting of unmodified starch, oxidized starch, esterified starch, etherified starch, amidated starch, cationized starch, amphoteric starch, and crosslinked starch.

The invention provides salt-resistant soil for drilling fluid as well as a preparation method and application of the salt-resistant soil, and relates to the field of drilling fluid. The salt-resistant soil for the drilling fluid is prepared from the following raw materials in parts by weight: 25 to 30 parts of purified sepiolite, 7 to 20 parts of 2-acrylamido-2-methylpropanesulfonic acid, 7 to 10 parts of N, N-dimethylacrylamide, 9 to 15 parts of a cationic monomer and 1 to 2 parts of an initiator. The invention further provides a preparation method of the salt-resistant soil for the drilling fluid and application of the salt-resistant soil in the water-based drilling fluid. The salt-resistant soil for the drilling fluid provided by the invention can keep a good slurry making rate in fresh water, saturated salt water and composite salt water, has good rheological property and outstanding temperature resistance, is suitable for various drilling fluid systems, is wide in application range, particularly can be used for directly making slurry by using seawater in offshore drilling operation, and has a wide application prospect. And the construction is more convenient in an environment lacking fresh water resources.

This invention provides a bilayer programmed release hydrogel dressing based on PD-168077. The hydrogel dressing is formed by photocrosslinking a lower fast-release layer and an upper slow-release layer. The fast-release layer is formed by photocrosslinking and curing a first pregel solution containing a first concentration of methacrylamide hyaluronic acid, methacrylamide collagen, a photoinitiator, and PD-168077. The slow-release layer is formed by photocrosslinking and curing a second pregel solution containing a second concentration of methacrylamide hyaluronic acid, methacrylamide collagen, a photoinitiator, and PD-168077. This invention also provides a method for preparing the dressing and its application. This invention constructs a biomimetic dermal triple network structure through a photopolymerization strategy of "single formulation, dual concentration, dual curing," achieving programmed release of PD-168077 with a fast-then-slow release. This synergistic effect of the drug, including anti-inflammatory, antioxidant, and angiogenesis-promoting properties, along with matrix bioactivity, effectively promotes the healing of chronic diabetic wounds.

Provided are: an inorganic solid electrolyte-containing composition; a sheet for all-solid-state secondary batteries; an all-solid-state secondary battery; a method for producing the sheet; and a method for producing the all-solid-state secondary battery. The inorganic solid electrolyte-containing composition contains an inorganic solid electrolyte, a polymer binder, and a dispersion medium, wherein the polymer binder contains a polymer having: a structural unit (A) derived from a disubstituted vinyl monomer having a homopolymer Tg of lower than 50°C; and at least one structural unit (B) selected from structural units derived from (meth)acrylamide having a homopolymer Tg of 50°C or higher, the total content of the structural unit (A) and the structural unit (B) being 80 mass% or more, and the polymer binder being soluble in the dispersion medium.

The invention discloses a high-conductivity high-adhesion automobile bumper primer and a preparation method thereof, and belongs to the technical field of automobile bumper primers. The high-conductivity and high-adhesion automobile bumper primer is prepared from the following raw material components: polar modified chlorinated polypropylene, waterborne acrylic resin, a dispersing agent, a flatting agent, a defoaming agent, titanium dioxide, superfine precipitated barium sulfate, fumed silica, conductive filler and deionized water. The polar modified chlorinated polypropylene is obtained by carrying out free radical polymerization on a polar unsaturated monomer and chlorinated polypropylene; the polar unsaturated monomer is prepared from acrylic acid, methyl methacrylate, hydroxyethyl acrylate and 3-allyl-2-hydroxybenzaldehyde; the water-based acrylic resin is obtained by carrying out copolymerization on hydroxyethyl methylacrylate, hydroxyethyl acrylate, methacrylamide and 2, 5-divinyl benzene-1, 4-diamine; the conductive filler adopts carbon nanotubes, graphene and conductive carbon black; the high-conductivity and high-adhesion automobile bumper primer prepared by the preparation method disclosed by the invention is excellent in mechanical property and relatively good in conductivity.

The invention relates to a calcipotriol nano-composite, difunctional integrated hydrogel for treating psoriasis as well as preparation and application of the difunctional integrated hydrogel. The preparation method comprises the following steps: loading calcipotriol on amino-modified mesoporous silica, and then carrying out a one-pot reaction on the amino-modified mesoporous silica, methacrylated gelatin, dopamine methacrylamide, sodium pirolinate carboxylate and phenyl (2, 4, 6-trimethylbenzoyl) lithium phosphate to obtain the difunctional integrated hydrogel. The hydrogel disclosed by the invention is UV-responsive drug-loaded hydrogel, can be quickly cross-linked and adhered to the surface of skin after being irradiated by UV, has the properties of high light transmission, drug sustained release, moisture retention and stable structure, and meets the clinical requirements of synchronous and integrated drug treatment and UV irradiation while remarkably improving the bioavailability of an externally applied drug; organic combination and mechanism complementation of two treatment modes are realized, so that the psoriasis is treated more efficiently.

The invention relates to a preparation method of a hyperbranched polymer containing phthalic dicarboxaldehyde, which comprises the following steps: dissolving a chain transfer agent, a monomer ADP containing a phthalic dicarboxaldehyde protecting group, dimethylacrylamide and azodiisobutyronitrile in tetrahydrofuran, and reacting for 8-24 hours at 70 DEG C in an inert atmosphere; cooling to normal temperature, adding trifluoroacetic acid, and continuously reacting for 1-3 hours; and stopping the reaction and precipitating, and then drying in vacuum to obtain the hyperbranched polymer containing o-phthalaldehyde. The hyperbranched polymer prepared by the invention can be efficiently cross-linked and fixed with sclera collagen, and is used for intervention treatment of myopia progress.

The invention provides nucleic acid base composite nano-particles and a preparation method thereof. The preparation method comprises the following steps: taking PDMA and an acrylate adenine monomer as raw materials, carrying out polymerization to obtain a diblock polymer, taking the diblock polymer and a coumarin monomer as raw materials, carrying out polymerization to obtain PA, and assembling the PA into a nucleated cross-linked nano-micelle; pDMA and an acrylate thymine monomer are used as raw materials and polymerized to obtain a block polymer, and the block polymer is assembled into the nano-micelle; and mixing the core cross-linked nano-micelles with the nano-micelles, and interacting to obtain the composite nano-particles. According to the preparation method disclosed by the invention, the core-crosslinked nano-micelle containing adenine is constructed, and the nano-micelle has poly (N, N-dimethylacrylamide) with a hydrophilic block, and the poly (N, N-dimethylacrylamide) can stably exist in an aqueous solution; and mixing the core-crosslinked nano-micelles with the nano-micelles to obtain the composite nano-particles through biologically excited nuclear-base interaction.

The application provides an external curing agent with passive anti-icing performance and a preparation method and application thereof, and belongs to the technical field of building materials.The external curing agent comprises a functional component and a basic component in a mass ratio of (80-83):129.2, wherein the functional component comprises methyl acryloyloxy functionalized Co3O4, modified polydimethylsiloxane, perfluorooctyl methacrylate, methyl methacrylate and isooctyl acrylate, and the basic component comprises water, an emulsifier, a pH buffer, N-hydroxymethyl acrylamide, butyl acrylate and an initiator.The application realizes the synergistic effect of anti-icing, water retention and strength enhancement through nano-functionalization and fluorosilicon hydrophobic modification in combination with precise proportioning of soft and hard monomers, and the prepared curing agent is suitable for concrete curing in a cold environment (0 DEG C to -15 DEG C), can maintain film stability under low-temperature conditions, prevents surface icing while blocking water evaporation, and solves the problem of early concrete frost damage.