44 results about "Diacetonamine" patented technology

The invention relates to the technical field of waterproof materials, and particularly discloses a high-elasticity waterproof emulsion and a preparation method thereof. The invention discloses a high-elasticity waterproof emulsion. The water-based paint is prepared from the following raw materials in parts by mass: 40 to 60 parts of modified acrylic resin emulsion, 25 to 40 parts of waterborne polyurethane, 3 to 6 parts of hydroxyethyl methylacrylate, 0.5 to 1 part of mercaptopropionic acid, 6 to 8 parts of fluorinated mica sheet, 3 to 6 parts of organic silicon emulsion, 2 to 4 parts of fluorocarbon surfactant, 0.8 to 1.5 parts of adipic dihydrazide, 0.3 to 0.8 part of dynamic cross-linking agent, 3 to 8 parts of compatilizer, 0.5 to 1 part of antioxidant, 0.5 to 1 part of anti-aging agent, 0.5 to 1.5 parts of defoaming agent and 40 to 55 parts of solvent. The modified acrylic resin emulsion is prepared from a monomer comprising diacetone acrylamide. The high-elasticity waterproof emulsion prepared by the invention has relatively good elasticity, waterproof performance and aging resistance.

The invention belongs to the technical field of self-repairing coatings, and particularly relates to an online patterned photocuring self-repairing vehicle cover film and a preparation method thereof. The invention discloses an online patterning photocuring self-repairing vehicle cover film which comprises a UV curing layer and a base material layer, and the UV curing layer comprises polyurethane containing double dynamic bonds; the polyurethane containing the double dynamic bonds is obtained by carrying out a chain extension reaction on a prepolymer by using a chain extender and carrying out a cross-linking reaction by using a cross-linking agent, the chain extender is prepared from diacetone acrylamide and bis (beta-ethoxyl) disulfide; the cross-linking agent comprises adipic acid dihydrazide. The structure of the polyurethane containing the double dynamic bonds comprises an acylhydrazone bond and a disulfide bond; the prepolymer is obtained by carrying out prepolymerization reaction on polyether glycol and isophorone diisocyanate. The double dynamic bonds play a supramolecular synergistic effect: the acylhydrazone bond provides pH responsive repair, the disulfide bond is rapidly recombined through thermal triggering, and the acylhydrazone bond and the disulfide bond cooperate to realize multi-mode repair.

This application relates to the field of coating technology, specifically disclosing a stain-resistant, high-hardness nano-ceramic paint and its preparation method. The stain-resistant, high-hardness nano-ceramic paint comprises the following components in parts by weight: 90-120 parts of acrylate emulsion, 40-60 parts of nano-inorganic silicone resin, 5-10 parts of film-forming aid, 20-30 parts of titanium dioxide, 10-20 parts of filler, 0.5-2 parts of formaldehyde-removing aid, 2-3 parts of dispersant, 0.5-1.5 parts of defoamer, 1-2 parts of thickener, and 10-20 parts of water. The acrylate emulsion has a solid content of 46-48% and is made from the following raw materials: a mixed monomer composed of methyl methacrylate, n-butyl acrylate, isooctyl acrylate, and methacrylic acid; a functional monomer composed of triethoxysilane succinic anhydride; a crosslinking monomer composed of diacetone acrylamide and dihydrazine adipate; an emulsifier; an initiator; and water. This application improves both the stain resistance and hardness of the ceramic paint by enhancing the film density of the coating system.

The invention belongs to the technical field of emulsion polymerization, and particularly discloses super-water-resistant cationic latex and a preparation method thereof. The invention discloses super water-resistant cationic latex. Comprising the following raw materials: deionized water, a hydrochloric acid solution, an emulsifier QT-03, an N-tallow trimethylene diamine quick-cracking emulsifier, a dimethyl diallyl ammonium chloride solution, a methacryloyloxyethyl trimethyl ammonium chloride solution, styrene, methyl methacrylate, butyl acrylate, diacetone acrylamide, azobis (isobutylamidine hydrochloride) and a defoaming agent. And adipic acid dihydrazide. According to the invention, a diacetone acrylamide-oxalic acid dihydrazide DAAM-ADH ketone hydrazine crosslinking system is utilized, and an oleamide QT-03 emulsifier is adopted, so that the green and environment-friendly room-temperature self-crosslinking type super-water-resistant cationic latex is synthesized.

The present application relates to a kind of cement-based self-repairing material and its preparation method and application, belong to oilfield cementing technical field.The preparation method of cement-based self-repairing material of the present application includes the following steps: mixture mainly by polymeric monomer, crosslinking agent, initiator and solvent is placed at polymerization temperature, make polymeric monomer, crosslinking agent carry out polymerization under the action of initiator;The polymeric monomer includes diacetone acrylamide and alkenyl quaternary ammonium salt, and the alkenyl quaternary ammonium salt contains more than two olefinic unsaturated double bond.The preparation method of cement-based self-repairing material of the present application, simple process, the cement-based self-repairing material prepared has good alkali resistance, hydrolysis resistance, has good stability in high-temperature alkaline environment of cement slurry, and under the action of calcium ion, will occur decrosslinking reaction, improve the water absorption of material, realize the water self-repairing of cement stone microcrack.

The invention discloses a hydrated polymer adsorbent based on saponin embryo modification as well as a preparation method and application thereof, and belongs to the technical field of environmental functional materials. The adsorbent is a three-dimensional network structure material which is prepared by acylating and modifying saponin embryos through maleic anhydride, then carrying out graft copolymerization on the modified saponin embryos, diacetone acrylamide and glycidyl methacrylate, and carrying out crosslinking through N, N-dianilino tetrahydrofuran. The preparation method mainly comprises the following steps: firstly, carrying out acylation reaction on saponin seed embryo dispersion liquid and maleic anhydride under an alkaline condition to obtain acylated saponin seed embryos; then carrying out graft copolymerization with two functional monomers in a hydrogen peroxide-acetylacetone initiation system, and finally adding a cross-linking agent to complete a cross-linking reaction. The molecular chain of the prepared adsorbent is rich in various functional groups such as acylamino, carboxyl and epoxy group, and the adsorbent has efficient adsorption capacity on heavy metal ions and oil pollutants in water, and is large in adsorption capacity and good in stability.

The invention relates to the technical field of water-based paint, in particular to a preparation method for double-modified acrylate emulsion through adipic acid dihydrazide and E-44 epoxy resin and application of the emulsion in paint, and is characterized in that firstly, the E-44 epoxy resin is used for modifying the acrylate emulsion; e-44 epoxy resin modified acrylate emulsion is obtained, on the basis, adipic acid dihydrazide and diacetone acrylamide serving as curing agents are introduced into a synthesis system, and multiple crosslinking occurs in the emulsion curing process. The problems of low hardness, poor adhesive force, weak water resistance, low glass transition temperature and the like of a traditional waterborne acrylate emulsion can be solved, on the premise of avoiding high-epoxy-content implosion, the crosslinking density can be remarkably improved, environmental protection and performance balance are achieved, and therefore the requirements of metal protection / building coatings for high hardness and high weather resistance are met.

The invention discloses a waterproof and antifogging coating liquid which comprises hydrophilic resin, an amphiphilic copolymer and a solvent, the hydrophilic resin is obtained by polymerizing a hydrophilic monomer, a hydrophobic monomer, an epoxy monomer and a benzophenone monomer under the action of an initiator; the amphiphilic copolymer is prepared from N, N-dimethylacrylamide serving as a hydrophilic section and diacetone acrylamide serving as a hydrophobic section through an addition-fragmentation chain transfer polymerization method. The hydrophilic resin and the amphiphilic copolymer are compounded, so that the waterproof and antifogging layer with excellent antifogging performance, light transmittance, wear resistance and scratch resistance is obtained, and the durability of the waterproof and antifogging layer is improved; a benzophenone monomer with a benzophenone group is arranged through the hydrophilic resin, so that the adhesive force between the waterproof and antifogging layer and the base material layer is improved.

The invention relates to the technical field of lithium battery diaphragms, in particular to a low-moisture and high-heat-resistance solution type acrylic acid binder and a preparation method thereof. Through the synergistic effect of the protective colloid composite cross-linking monomer, the low moisture content is achieved in a breakthrough mode. Wherein the steric hindrance effect of the polyvinyl alcohol in the protective colloid mixture inhibits exposure of hydrophilic groups, the polyvinyl pyrrolidone improves the dispersion stability, and the polyether polyol enhances the film-forming flexibility; hydroxyethyl acrylamide and diacetone methacrylamide in the crosslinking monomer mixture construct a dual crosslinking network, so that the covalent bond density between molecular chains is remarkably enhanced, and cyano groups of acrylonitrile further reduce the moisture adsorption path and improve the interface anchoring force through strong polarity and hydrophobicity; the three components cooperate with each other to achieve a heat-resistant effect which can only be achieved by a high addition amount in the prior art under a low addition amount, and meanwhile, the problem of diaphragm deformation caused by high-temperature long-time reaction is avoided.

The invention belongs to the technical field of functional gel, and provides a hydrophobic adhesion ionic gel human epidermis multiple physiological signal sensor, a preparation method and application. The preparation method of the ionic gel provided by the invention comprises the following steps: mixing monomers 2-(methacryloyloxy) ethyl] dimethyl-(3-sulfopropyl) ammonium hydroxide and diacetone acrylamide, a cross-linking agent and a photoinitiator in an ionic liquid 1-hexyl-3-methylimidazolium bis (trifluoromethanesulfonyl) imine salt; heating and dissolving to form a precursor solution; and carrying out polymerization reaction on the precursor solution under the initiation of ultraviolet light, and curing to obtain the ionic gel. The ionic gel is simple in preparation method, has excellent hydrophobicity, adhesiveness, conductivity, mechanical performance, sensing performance and the like, and can be used as a flexible strain sensor and a flexible epidermal electrode to be applied to the fields of human physiological signal monitoring, medical health, soft robots and the like.

The invention provides an acrylic resin assistant for a cathode electrophoretic coating and a preparation method thereof, and belongs to the technical field of coatings, microgel particles in the acrylic resin assistant for the cathode electrophoretic coating have a shell-core structure, and the microgel particles comprise a hard core component and a soft shell component; the crosslinking monomer comprises at least one of trimethylolpropane triacrylate, trimethylolpropane trimethacrylate, trimethylolpropane trimethacrylate, ethylene glycol dimethacrylate, zinc diacrylate and zinc dimethacrylate; the functional monomer comprises at least one of diacetone acrylamide, ethyl acetoacetate methacrylate, glycidyl methacrylate and dimethylaminoethyl methacrylate. Under the electric field intensity of 10-100V / cm, the film thickness of the sharp edge part of the prepared nano-emulsion reaches 85 + / -3% of that of a plane area; after curing, the pencil hardness at the edge of the film is greater than or equal to 2H, and the salt spray resistance is greater than or equal to 1200h; and the storage stability of the emulsion is more than 12 months.

The invention discloses a temperature-resistant and salt-resistant polymer containing a nanometer dynamic cross-linked structure and a preparation method thereof, the preparation method comprises the following steps: S1, taking acrylamide, acrylic acid, 2-acrylamido-2-methylpropanesulfonic acid and diacetone acrylamide as monomers, and carrying out copolymerization under the action of an initiator, the side chain of the copolymer contains ketone carbonyl; s2, hydrazide functionalized polysilsesquioxane is adopted as a cross-linking agent to be cross-linked with the copolymer under the condition that the pH is 5-6, and the temperature-resistant and salt-resistant polymer is obtained. The dynamic covalent bond-acylhydrazone bond in the temperature-resistant and salt-resistant polymer can be utilized to construct a chemical cross-linked network, so that the polymer is endowed with good tackifying property; by utilizing the reversibility of dynamic covalent bonds, the polymer is endowed with good shear recovery capability; the stability of a polymer system is greatly improved by utilizing the characteristics of a branched structure and a nano material; and the solubility and viscosity of the polymer are remarkably improved by using carboxylate ions in the side chain of the polymer.

The invention belongs to the field of oilfield chemical treatment agents, and particularly relates to a preparation method of a thickening agent for oil extraction fracturing, which comprises the following steps: 1, uniformly mixing 25 parts of acrylamide, 15 parts of acrylic acid, 4 parts of Tween-80, 1.5 parts of dodecyl benzene sulfonic acid isopropylamine salt, 90 parts of deionized water and 2.5 parts of azodiisobutylimidazoline hydrochloride to obtain a water phase; 2, uniformly mixing 45 parts of 0 # diesel oil, 14 parts of methyl methacrylate, 7 parts of butadiene, 7 parts of diacetone acrylamide and 6 parts of butanol polyoxypropylene ether to obtain an oil phase; and 3, putting the oil phase into a reaction kettle, adding the water phase into the oil phase, uniformly stirring at the rotating speed of a motor of 9000rpm for 30 minutes, adjusting the rotating speed to 700rpm, introducing nitrogen for 30 minutes, heating to 535 DEG C, stirring for reacting for 10 hours, and cooling to obtain the fracturing fluid thickening agent for oil extraction. The shearing resistance, the temperature resistance, the salt resistance and the sand suspending property of the thickening agent are superior to those of the existing thickening agent.

The present invention discloses a solvent-based self-crosslinking acrylate resin and a preparation method thereof. The raw materials include the following components by weight: 80-105 parts of a vinyl monomer, 49-85 parts of a soft monomer, 20-60 parts of a hard monomer, 2-6 parts of a functional monomer, 1-2 parts of an initiator, 1-9 parts of an organic amine, and 200-220 parts of a solvent. The functional monomer is diacetone acrylamide, and the organic amine is a linear diamine (such as decanediamine) with 10 or more carbon atoms or a modified organic amine obtained by a Michael addition reaction between a difunctional acrylate monomer and aqueous ammonia. The present invention utilizes the properties of diacetone acrylamide reacting with specific amine compounds to achieve single-component self-crosslinking in a solvent-based acrylate resin, thereby preparing an acrylate resin that is easy to store for a long time without deterioration, easy to operate during use, and has both flexibility and high-temperature resistance.

The application relates to the technical field of waterproof materials, and specifically discloses a high-elasticity waterproof emulsion and a preparation method thereof. The high-elasticity waterproof emulsion is prepared from the following raw materials in parts by mass: modified acrylic resin emulsion 40-60 parts, water-based polyurethane 25-40 parts, hydroxyethyl methacrylate 3-6 parts, mercapto propionic acid 0.5-1 part, fluorinated mica sheet 6-8 parts, silicone emulsion 3-6 parts, fluorocarbon surfactant 2-4 parts, adipic acid dihydrazide 0.8-1.5 parts, dynamic crosslinking agent 0.3-0.8 parts, compatilizer 3-8 parts, antioxidant 0.5-1 part, anti-aging agent 0.5-1 part, defoaming agent 0.5-1.5 parts and solvent 40-55 parts; and the modified acrylic resin emulsion is prepared from monomers including diacetone acrylamide. The high-elasticity waterproof emulsion prepared by the application has good elasticity, waterproof performance and aging resistance.

The present invention discloses a method for preparing diacetone acrylamide, and relates to the technical field of preparation of fine chemical products. The method solves the technical problem of high by-product content in the preparation of diacetone acrylamide in the prior art. The present invention uses diacetoneamine and methyl 2,3-dibromopropionate as main raw materials, generates a diacetone acrylamide bromide intermediate by reaction, and then undergoes a debromination reaction to generate diacetone acrylamide. Finally, the diacetone acrylamide finished product is obtained through recrystallization and drying. Compared with the prior art, the present invention overcomes some shortcomings of traditional methods, has fewer side reactions, avoids the generation of easily polymerizable impurities such as acrylamide, mesityl oxide, and N-tert-butyl acrylamide, and has the advantages of good product quality, high yield, and a wide range of applications.

The present application relates to the technical field of oil exploitation aids, in particular to a hydrophobic associating polymer containing betaine structure and a preparation method and application thereof.The hydrophobic associating polymer containing betaine structure (PADA) provided by the present application is composed of acrylamide structural units, diacetone acrylamide structural units and hydrophobic monomer ANMSC-16 structural units with sulfobetaine structure, and exhibits excellent salt thickening performance.It is tested that the PADA provided by the present application exhibits excellent temperature resistance and shear strength in sodium chloride solution, magnesium chloride solution and calcium chloride solution.Because of the reversibility of the associated structure, the polymer exhibits excellent shear recovery performance in the above salt solutions, and the viscoelasticity increases with the increase of the salt solution concentration.Therefore, the hydrophobic associating polymer containing betaine structure provided by the present application can be used as a temperature-resistant and salt-resistant thickening agent, and has important potential in enhanced oil recovery in oil and gas fields.

The present invention belongs to the technical field of self-repairing coatings, and specifically relates to an online patterned light-cured self-repairing car cover film and a preparation method thereof. The present invention discloses an online patterned light-cured self-repairing car cover film, comprising a UV curing layer and a substrate layer, wherein the components of the UV curing layer include a polyurethane containing a double dynamic bond; the polyurethane containing a double dynamic bond comprises a prepolymer obtained by a chain extension reaction with a chain extender and a cross-linking reaction with a cross-linking agent; the chain extender comprises diacetone acrylamide and bis(β-hydroxyethyl) disulfide; the cross-linking agent comprises adipic acid dihydrazide. The structure of the polyurethane containing a double dynamic bond comprises an acylhydrazone bond and a disulfide bond; the prepolymer comprises a prepolymer obtained by a prepolymerization reaction with polyether diol and isophorone diisocyanate. The double dynamic bonds of the present invention play a supramolecular synergistic effect: the acylhydrazone bond provides pH-responsive repair, and the disulfide bond is rapidly reorganized by thermal triggering, and the two synergistically achieve multi-mode repair.

The invention belongs to the technical field of plastic uptake oil preparation, and particularly relates to water-based environment-friendly plastic uptake oil and a preparation method thereof. The plastic uptake oil comprises the following components in parts by weight: a weather-resistant polyurethane dispersion, a core-shell acrylic emulsion, a silane coupling agent, diacetone acrylamide, adipic dihydrazide, nano silicon dioxide, nano zinc oxide, a coalescing agent, an ultraviolet light absorber, a light stabilizer and deionized water, and can also comprise a defoaming agent, a wetting agent and a thickening agent. The preparation method comprises the steps of pre-dispersing the filler, compounding the main body and adding the auxiliary agent. The weather-resistant polyurethane and the core-shell acrylic emulsion are compounded, and the nano filler, the silane coupling agent, the cross-linking agent and the weather-resistant additive are combined, so that a weather-resistant system with synergistic structure shielding, nano reflection and additive absorption is constructed, and the synergistic improvement of ultraviolet yellowing resistance, low-temperature flexibility, high specular glossiness and food-grade environmental protection property is realized; the water-based blister varnish overcomes the defects of traditional water-based blister varnish in the aspects of gloss, weather resistance, low temperature and adhesive force, and can be used in the field of high-end packaging.

The application discloses a kind of diacetone acrylamide production neutralization reaction device and its using method, it is related to diacetone acrylamide production technical field, with the advantage that filter screen is cleaned, stirring group can continue to disturb material, its technical scheme main point is: including reaction bucket, filter bucket and the circular groove being opened in the top of reaction bucket, the bucket mouth of filter bucket is upwards, and the bottom of filter bucket passes through from the circular groove, driving part for pushing filter bucket vertical up and down reciprocating movement is equipped on the reaction bucket, stirring group is on the reaction bucket, driving part is used to drive stirring group to stir material in reaction bucket.

The invention provides a bio-based acrylate emulsion and a preparation method thereof.The bio-based acrylate emulsion is prepared from, by mass, 10.3-19.1 parts of a bio-based monomer A, 11-17 parts of an acrylate monomer, 1-2 parts of organic acid, 2-3 parts of diacetone acrylamide, 0.8-1.2 parts of adipic acid adipic dihydrazide and 1-2 parts of a functional monomer; the biochar content of the bio-based acrylic emulsion is 39%-45%; and the glass transition temperature of the bio-based monomer A is-70 DEG C to 25 DEG C. The bio-based acrylate emulsion has high bio-based carbon content, and a paint film formed by the bio-based acrylate emulsion has good adhesive force, sanding property, water resistance, alkali resistance, alcohol resistance and pollution resistance.

This invention discloses a dual-dynamic reversible crosslinked, highly stable, weather-resistant waterborne acrylic emulsion, its preparation method, and its applications, belonging to the fields of polymer emulsion synthesis and waterborne polymer materials technology. The emulsion uses hard and soft monomers as its basic framework, introduces a rigid alicyclic monomer, dicyclopentadiene acrylate, for main chain modification, and constructs a dual-network system of ketone-hydrazine dynamic reversible crosslinking + imide hydrogen bond dynamic crosslinking using diacetone acrylamide and N-maleimide. It is prepared via a semi-continuous seeded emulsion polymerization process, combined with anionic / nonionic reactive emulsifiers, thermally decomposable initiators, pH buffers, and adipamide hydrazine latent crosslinking agents. The system utilizes two dynamic reversible bonds with different bond energies to achieve wide temperature adaptability of the coating film. At high temperatures, the ketone-hydrazine bonds relax and release pressure to prevent re-adhesion, while at low temperatures, the hydrogen bond network strengthens the structure to prevent brittleness. Simultaneously, dynamic bond reconstruction enables self-repair of micro-scratches and micro-cracks. It is suitable for heavy-duty anti-corrosion and highly weather-resistant waterborne coating systems.

The present invention provides a surface treatment agent for galvanized steel sheets and a preparation process thereof. In the presence of a linear polysiloxane resin and modified nanoparticles, in-situ polymerization of acrylate monomers is carried out to form an IPN structure, thereby improving the internal density of a composite resin protective film layer. Simultaneously, diacetone acrylamide is introduced to react with a primary amine to produce a Schif base, thereby imparting a self-repairing function to the composite resin protective film layer, thereby achieving excellent mechanical strength, scratch resistance, corrosion resistance, heat resistance, and self-repairing function.

The invention discloses a high-temperature-resistant oil well cement fluid loss agent. The high-temperature fluid loss agent mainly solves the problem that the existing high-temperature fluid loss agent product is insufficient in temperature resistance and cannot guarantee the stability of cement slurry in a shaft environment at the temperature of 200 DEG C or above. The invention is characterized in that the adhesive is prepared from the following components in parts by mass: 50 to 80 parts of 2-acrylamido-2-methylpropanesulfonic acid, 5 to 10 parts of acrylic acid, 1 to 10 parts of polyoxyethylene, 1 to 10 parts of diacetone acrylamide, 1 to 3 parts of N-vinyl pyrrolidone, 0.5 to 3 parts of initiator, 300 to 420 parts of deionized water and 45 to 75 parts of NaOH. The preparation method comprises the following steps: mixing and dissolving deionized water, 2-acrylamido-2-methylpropanesulfonic acid and acrylic acid, and dropwise adding NaOH to obtain a reaction solution; deionized water, polyoxyethylene, diacetone acrylamide and N-vinyl pyrrolidone are mixed and dissolved and then added into the reaction solution, and a prepolymerization reaction solution is obtained; and adding an initiator to obtain the fluid loss agent.

The invention relates to the technical field of high polymer materials, and discloses an ethanol-resistant emulsion for fireproof fibers and a preparation method thereof. The emulsion is prepared from water, an SR-10 emulsifying agent, diacetone acrylamide, adipic dihydrazide, diallyl phthalate, trimethylolpropane trimethacrylate, methacrylic acid, octyl acrylate, styrene, acrylonitrile, vinyl trimethoxy silane, ammonium persulfate, tert-butyl hydroperoxide, D-sodium erythorbate, ammonia water and a sterilizing agent. The preparation method comprises the steps of emulsion preparation, heating reaction, adding of vinyltrimethoxysilane in batches, heat preservation, oxidation-reduction reaction, normal-temperature crosslinking and the like. According to the invention, the reactive emulsifier containing an ammonium group, the large-molecular-weight soft monomer and acrylonitrile with good solvent resistance are adopted for copolymerization, vinyl trimethoxy silane is added twice, and the prepared emulsion does not bubble, discolor and swell after being soaked in 50% and 75% ethanol aqueous solutions for 24 hours, and has good toughness.

An aqueous coating composition comprising: (A) an emulsion polymer, the present invention relates to a composition comprising (i) from 0.48% to 1.5% by weight of structural units of an ethylenically unsaturated phosphorus-containing monomer, (ii) from 0.7% to 3% by weight of structural units of diacetone (meth) acrylamide, (iii) from 10% to 80% by weight of structural units of a vinyl aromatic monomer, (iv) from structural units of an alkyl (meth) acrylate, and (v) from 0 to 5% by weight of an alpha, beta-unsaturated phosphorus-containing monomer, a structural unit of a [beta]-ethylenically unsaturated carboxylic acid, a salt thereof, or a mixture thereof; (B) a specific dicarboxylic acid at a specific concentration, a salt thereof, or a mixture thereof; (C) from 30% to 60% by weight of a thio, amido or imidogen derivative of triphosphonic acid, a salt thereof or a mixture thereof; (D) a water-soluble alkali metal silicate present in an amount to provide a dry weight ratio of (D) to (C) of 1.2 to 3.7; and (E) from 40% to 52% by weight of tannic acid, gallic acid, pyrogallol or citric acid; salts thereof; or a combination thereof; wherein the weight percentages are relative to the weight of the emulsion polymer. A method of making a coating comprising a base coat made from the aqueous coating composition.

The invention belongs to the technical field of coatings, and particularly relates to a coating as well as a preparation method and application thereof. The coating comprises an emulsion, a preservative, an antiviral synergist, an antibacterial agent and a wax auxiliary agent, the emulsion is prepared from the following raw materials: butyl acrylate, styrene, methacrylic acid, a thiazole modified methacrylate monomer, dodecafluoroheptyl methacrylate, diacetone acrylamide and adipic dihydrazide; the preservative is prepared from at least one of dibromo cyano propionamide, 5-chloro-2-methyl-4-isothiazole-3-ketone, 1, 2-benzisothiazolin-3-ketone and 2-methyl-4-isothiazolin-3-ketone, and the preservative is prepared from at least one of dibromo cyano propionamide, 5-chloro-2-methyl-4-isothiazole-3-ketone, 1, 2-benzisothiazolin-3-ketone and 2-methyl-4-isothiazolin-3-ketone; the antiviral synergist is prepared from at least one of zinc pyrithione and 3-iodine-2-propargyl butyl carbamate; the antibacterial agent comprises an antibacterial agent taking silver ions as an active component. Through the combined action of all the components, the coating has the comprehensive properties of good stain resistance, antibacterial property, antibacterial durability, low sensitization and the like.

The invention belongs to the technical field of coatings, and particularly relates to a stain-resistant emulsion, a stain-resistant coating as well as a preparation method and application of the stain-resistant emulsion and the stain-resistant coating. The stain-resistant emulsion is prepared from the following raw materials: methyl methacrylate, n-butyl acrylate, 2-ethylhexyl acrylate, methacrylic acid, an anionic emulsifier, a nonionic emulsifier, a crosslinking monomer, an initiator, a neutralizer and water. The crosslinking monomer comprises a diacetone acrylamide / adipic acid dihydrazine system and vinyl triethoxy silane. According to the invention, the anionic emulsifier and the nonionic emulsifier are compounded for use, so that the hydrophilic-lipophilic balance is controlled, and the stain resistance of the emulsion is improved; a specific diacetone acrylamide / adipic acid dihydrazine system and vinyltriethoxysilane are adopted as cross-linking monomers, and other components are combined to act together, so that the film forming density of the emulsion is greatly improved, and the paint is ensured to have good stain resistance.

The invention discloses a solid thickening agent for fracturing and a preparation method thereof, and relates to the technical field of chemical treatment agents. The water-based adhesive is prepared from the following components in parts by weight: 30 to 35 parts of N-hydroxyethyl acrylamide, 18 to 24 parts of N-(3-methoxypropyl) acrylamide, 14 to 16 parts of vinyl sulfonate, 8 to 10 parts of vinyl benzoate, 6 to 8 parts of diacetone acrylamide, 4 to 6 parts of dimethyl itaconate, 2 to 4 parts of dodecyl benzene sulfonic acid isopropylamine salt, 120 to 140 parts of deionized water and 1 to 2 parts of azodiisobutylimidazoline hydrochloride. The materials are put into a blending tank to be uniformly mixed. According to the solid thickening agent for fracturing and the preparation method thereof, the shearing resistance, the temperature resistance, the salt resistance and the sand suspending property of the solid thickening agent are obviously superior to those of an existing thickening agent.

The invention provides a preparation method and application of diacetone-D-mannitol ester, belongs to the technical field of organic synthesis, and solves the technical problems that the product structure is difficult to control, the yield is low, the cost is high and large-scale production cannot be realized in the existing synthesis process of the diacetone-D-mannitol ester. The preparation method of the diacetone-D-mannitol ester comprises the following steps: uniformly mixing diacetone-D-mannitol, dialkyl carbonate, a catalyst and a cosolvent, and controlling the moisture content 1t of a reaction system; the preparation method comprises the following steps: adding the diacetone-D-mannitol ester into a reaction kettle, heating a reaction system to 60-70 DEG C in a gradient manner, keeping the constant temperature for 6-10 hours, fully reacting, and filtering and carrying out rotary evaporation after the reaction is finished, thereby obtaining the diacetone-D-mannitol ester. The diacetone-D-mannitol ester product prepared by the preparation method disclosed by the invention is good in structural thermal stability, high in purity and high in yield, and can be applied to synthesis of food additives, surfactants and fine chemicals.