17 results about "Diacetonamine" patented technology

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 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 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 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 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 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 discloses a two-component high-frequency arc woodworking adhesive and a preparation method thereof, and relates to the field of adhesives. The adhesive is composed of a component A and a component B, the component A is prepared from the following components in parts by weight: 350 to 450 parts of deionized water, 15 to 25 parts of polyvinyl alcohol 1788, 15 to 20 parts of polyvinyl alcohol 1799, 0.5 to 1 part of potassium persulfate, 1 to 3 parts of alkylphenol polyoxyethylene ether, 1 to 2 parts of polydimethylsiloxane, 320 to 420 parts of vinyl acetate, 5 to 10 parts of acrylic acid, 5 to 10 parts of diacetone acrylamide, 0.1 to 0.5 part of tert-butyl hydroperoxide, 0.1 to 0.5 part of sodium 2-methyl-4-nitrobenzenesulfinate, 5 to 10 parts of BJ-707F type VAE emulsion, 1 to 2 parts of benzisothiazolinone and 0.1 to 1 part of a surfactant; 1 part of alumina; the component B is prepared from the following components in parts by weight: 300 to 400 parts of deionized water, 0.5 to 2 parts of cellulose, 50 to 80 parts of calcium powder, 2 to 4 parts of nonylphenol polyoxyethylene ether, 4 to 8 parts of sodium polyacrylate, 1 to 2 parts of polydimethylsiloxane, 1 to 2 parts of benzisothiazolinone, 2 to 10 parts of adipic dihydrazide and 2 to 10 parts of a CR-40S latent curing agent; the double-component high-frequency arc woodworking glue can be obtained by mixing the component A and the component B according to the mass ratio of 1: 0.5-1: 2.

The application relates to the technical field of concrete, and particularly discloses a polycarboxylic acid water reducing agent for concrete, a preparation method and application. The polycarboxylic acid water reducing agent is mainly made of the following raw materials in parts by weight: isopentenyl alcohol polyoxyethylene ether 100 parts, hydroxyethyl acrylate 16-20 parts, acrylic acid 9-11 parts, 2-methacryloyloxyethyl choline phosphate 6-8 parts, methacryloyl ethyl sulfobetaine 6-8 parts, diacetone acrylamide 3-5 parts, acrylamide 3-5 parts, an initiator 0.6-1 part, a pro-initiator 0.4-0.6 part, a chain transfer agent 2-3 parts, calcium sulfate whiskers 4-6 parts and water 270-335 parts. The polycarboxylic acid water reducing agent is applied to concrete, so that the concrete has the advantages of high slump and extension degree retention time, low bleeding, high compressive strength, and the like, effectively improves the situation that the slump loss of the concrete is too fast due to long-time transportation or high-temperature transportation, and meets the market demand.

The invention discloses an acrylic ester extra-black deepening agent emulsion for superfine denier polyester as well as a preparation method and application of the acrylic ester extra-black deepening agent emulsion, and belongs to the technical field of textile chemicals. N-hydroxymethyl acrylamide and diacetone acrylamide are used as functional monomers; a Tween-40 / hexadecyl trimethyl ammonium chloride nonionic / cationic compound emulsifier is adopted; azobis (isobutylamidine hydrochloride) is selected as the initiator; the emulsion is prepared through a semi-continuous seed emulsion polymerization process, the particle size of the emulsion is 50-80 nm, the room-temperature placement stability is larger than or equal to 6 months, the mass percent of the effective components is 25-35%, and the balance is deionized water. The deepening agent can be firmly combined with the surface of the superfine denier polyester fiber through the synergistic effect of all monomers, the blackness value and color fastness of the fiber are remarkably improved, and meanwhile the soft hand feeling and good physical and mechanical properties of the fabric are kept.

The application provides a preparation method and application of diacetone-D-mannitol ester, and belongs to the technical field of organic synthesis, and solves the technical problems of difficult control of product structure, low yield, high cost and incapability of large-scale production in the synthesis process of diacetone-D-mannitol ester at present. The preparation method of diacetone-D-mannitol ester comprises the following steps: uniformly mixing diacetone-D-mannitol, carbonic acid dialkyl ester, a catalyst and a cosolvent, controlling the water content of a reaction system to be less than 50 ppm, gradientally heating the reaction system to 60-70 DEG C, keeping constant temperature for 6-10 h to fully react, and after the reaction is completed, filtering and rotary evaporation to obtain diacetone-D-mannitol ester. The diacetone-D-mannitol ester product prepared by the preparation method has good thermal stability of product structure, high purity and high yield, and can be applied to the synthesis of surfactants and fine chemical products.

The invention provides a method for extracting and separating neodymium and gadolinium in neodymium-iron-boron waste or a solution by using a non-aqueous-phase organic solvent. Novel non-aqueous phase organic solvents diacetone alcohol, ethylene glycol and diethylene glycol are mixed with water to form a high-polarity (MP) organic phase, 260 # solvent oil is used as a diluent, P507 is used as an extraction agent to form a low-polarity (LP) organic phase, and the two phases are mixed to construct an efficient non-aqueous phase solvent extraction system. According to the extraction system, a polar organic solvent (such as diacetone alcohol, ethylene glycol and diethylene glycol) with low dielectric constant and low viscosity is used for replacing most of water to form a high-polarity organic phase, and an acid extraction agent P507 and 260 # solvent oil are used for forming a low-polarity organic phase to reduce acid and alkali loss and wastewater discharge; therefore, green and efficient separation of rare earth elements neodymium and gadolinium is realized. According to the system, the extraction efficiency of gadolinium can reach 98.99%, and the separation factor of gadolinium and neodymium reaches up to 656.

The present application relates to a kind of foundry molding sand binder preparation method, which uses pitch, distillation residue in the production process of diacetone acrylamide, water, emulsifier, catalyst and the like as raw material to prepare foundry molding sand binder, and the preparation method is to add pitch, distillation residue in the production process of diacetone acrylamide, vegetable oil, catalyst, emulsifier, water into a mixing tank with stirrer, and high-speed stirring under heating until uniform, which can be used.The present application has simple process, convenient operation, less reaction equipment, solves the environmental pollution problem caused by the discharge of distillation residue in the production process of diacetone acrylamide, and provides cheap raw material for foundry binder production, and the prepared binder has good performance.

The application discloses a purification method of diacetone acrylamide and relates to the technical field of diacetone acrylamide purification. The method solves the technical problems of low production efficiency and low purity of diacetone acrylamide in the prior art. The method comprises the following steps: firstly, performing vacuum distillation on a reaction mixture of diacetone acrylamide to obtain a reaction liquid; adjusting the temperature of the reaction liquid, slowly adding the reaction liquid into ammonia water, adding the ammonia water until the pH of the reaction liquid is 2-3, removing N-containing cyclic organic compounds under the pH condition, and obtaining a neutralization liquid by static layer separation; adding excessive ammonia water into the neutralization liquid to adjust the pH to 9-10, and obtaining an organic layer by static layer separation; adding a polymerization inhibitor into the organic layer, performing rectification under the condition of a vacuum degree of 5 Pa, collecting distillates with a temperature of 110-120 DEG C, and obtaining diacetone acrylamide. The purity of diacetone acrylamide obtained by the purification method is above 99.7%.