776 results about "Itaconic acid" patented technology

The invention relates to a flame-retardant inorganic quick-setting material and a preparation method thereof, and the flame-retardant inorganic quick-setting material is prepared from the following raw materials: sulphoaluminate cement, aluminum-magnesium hydrotalcite, phosphorus slag powder, waste PBO fiber, an accelerator, a water reducer, a functional auxiliary agent, and 3, 3 '-diamino-4, 4'-difluorodiphenyl sulfone. The functional auxiliary agent comprises structural units introduced by the following monomers: 3-[N, N-dimethyl-[2-(2-methylpropyl-2-enoyloxy) ethyl] ammonium] propane-1-sulfonic acid inner salt, diphenyl (4-vinyl phenyl) phosphine oxide, 1, 3-bis (oxirane methyl)-5-(2-allyl)-1, 3, 5-triazine-2, 4, 6 (1H, 3H, 5H)-triketone, 10-(4-vinyl phenyl)-10H-phenoxazine and itaconic acid. The material is high in strength, remarkable in rapid hardening and flame-retardant effect, and safe and environment-friendly to use.

Provided is a dispersant for hydraulic compositions that has high dispersibility and can reduce the viscosity of the hydraulic composition. [Solution] A dispersant for hydraulic compositions comprising: a polymer (P) having a structural unit (1) formed from a compound represented by general formula (1), and a structural unit (2) formed from a compound containing at least one selected from acrylic acid, methacrylic acid, fumaric acid, maleic acid, maleic anhydride, itaconic acid, itaconic anhydride, and salts thereof; and an ether compound (A) which is a compound in which 1 to 500 moles of an alkylene oxide having 2 to 4 carbon atoms are added to 1 mole of a mono- to tetrahydric aliphatic alcohol having 2 to 24 carbon atoms, wherein the mass average molecular weight of the polymer (P) is 5,000 to 5,000,000, and the mass ratio (A / P) of the ether compound (A) to the polymer (P) is greater than 0 and less than or equal to 0.25.

The invention relates to a flame-retardant toughening agent for a polypropylene material and a preparation method of the flame-retardant toughening agent, and belongs to the technical field of macromolecular flame-retardant toughening, and the preparation method comprises the following steps: firstly combining an aromatic compound with melamine, and then combining with a flame-retardant material to obtain a flame-retardant compound; the preparation method comprises the following steps: combining itaconic anhydride, a modified toughening agent, octavinyl silsesquioxane and polypropylene through graft copolymerization to obtain grafted polypropylene; combining the flame-retardant compound with grafted polypropylene to obtain a modified flame-retardant toughening agent; and mixing the modified flame-retardant toughening agent with an antioxidant and a lubricant, and carrying out melt blending extrusion to obtain the flame-retardant toughening agent for the polypropylene material. According to the technical scheme, the aromatic compound, the melamine and the flame-retardant material are combined, so that the flame-retardant property of the polypropylene material is effectively improved; the itaconic anhydride, the modified toughening agent and the octavinyl silsesquioxane are combined with the polypropylene, so that the impact toughness and the mechanical property of the polypropylene material are enhanced, and the comprehensive performance of the flame-retardant toughening agent is generally improved.

Methods for the use of prodrugs of itaconic acid and 1- and 4-methyl itaconic acid for inducing hair growth and treating an inflammatory, or immune activation (adaptive or innate), skin condition or other condition associated with hair loss are disclosed.

The invention relates to a preparation method of a high-hardness and high-sulfate-radical water quality scale inhibitor, and belongs to the technical field of water treatment.The preparation method comprises the steps that sodium carboxymethyl cellulose-sulfur quantum dots are prepared by using carboxymethyl cellulose as a stabilizer and then subjected to a copolymerization reaction with 2-acrylamido-2-methylpropanesulfonic acid and itaconic acid, and the high-hardness and high-sulfate-radical water quality scale inhibitor is obtained. The preparation method comprises the following steps: carrying out a reaction on sodium carboxymethyl cellulose and sulfur quantum dots to obtain modified sodium carboxymethyl cellulose-sulfur quantum dots, and carrying out a reaction on polysuccinimide, 4-amino phthalic acid and 2-aminoethanesulfonic acid to obtain a polyaspartic acid derivative; the modified sodium carboxymethyl cellulose-sulfur quantum dots and the polyaspartic acid derivative are mixed to serve as the scale inhibitor, the scale inhibition rate of the scale inhibitor is remarkably increased through the synergistic effect of the modified sodium carboxymethyl cellulose-sulfur quantum dots and the polyaspartic acid derivative, and meanwhile, due to the fact that a large number of new hydrogen bonds are generated between the modified sodium carboxymethyl cellulose-sulfur quantum dots and the polyaspartic acid derivative, the scale inhibition rate of the scale inhibitor is increased. The stability of a polymer structure is improved, so that the temperature resistance of the scale inhibitor is improved. The scale inhibitor is green and environment-friendly, and has excellent scale inhibition efficiency on high-hardness and high-sulfate-radical water.

The invention discloses a glue solution for a copper-clad plate and a preparation method of the glue solution, and relates to the technical field of copper-clad plates. According to the prepared glue solution for the copper-clad plate, the composite epoxy resin, the curing agent, the accelerant, the solvent, the flexibilizer and the inorganic filler, the composite epoxy resin comprises bisphenol A epoxy resin, epoxy phenyl polysiloxane, itaconic acid polyaryletherketone and hydroxyl-terminated fluorine-containing vinyl polysiloxane, so that the interface bonding force with the copper plate is enhanced; the dielectric constant and the dielectric loss are effectively reduced, the peel strength and the toughness of the material are also remarkably improved, and the toughening agent is modified polyether sulfone microspheres; the modified polyethersulfone microspheres are prepared by coating polyethersulfone microspheres with hexamethylenediamine tetrapropionamide diamine, the hexamethylenediamine tetrapropionamide diamine is prepared by carrying out acylation condensation reaction on hexamethylenediamine tetramethyl propionate and ethylenediamine, and the polyethersulfone microspheres are prepared by carrying out electrostatic spinning on a spinning solution of polyethersulfone and vinylpyridine, so that the peel strength of the glue solution is remarkably improved.

The invention relates to the technical field of oil and gas field exploitation, and discloses a drag reducer for a multifunctional fracturing fluid and a preparation method thereof.The preparation method of the drag reducer for the multifunctional fracturing fluid comprises the steps that acrylic acid, acrylamide, 2-acrylamido-2-methylpropanesulfonic acid and modified itaconic acid are added into deionized water, stirring and mixing are conducted, and the drag reducer for the multifunctional fracturing fluid is obtained. Nitrogen is introduced for 30-40 min to remove oxygen, then azobis (isobutylamidine) hydrochloride is added, the mixture is stirred to react for 48-72 h at the temperature of 45-50 DEG C, and a polymer solution is obtained; and directly and uniformly mixing the polymer solution, the compatilizer and the modified nano silicon dioxide, and reacting in a magnetic stirrer at 60-70 DEG C for 1.5-2 hours to obtain the drag reducer for the multifunctional fracturing fluid. The drag reducer has a good drag reduction effect, and the hydrophobicity, the temperature resistance, the salt resistance and the shear resistance are improved.

The invention relates to the technical field of detection kits, in particular to a preparation method of fluorescent microspheres, the fluorescent microspheres and a preparation method of a kit. According to the invention, 4-vinylbenzoic acid, dibenzoylmethane and phenanthroline are used as ligands to prepare the europium complex; the prepared europium complex, styrene and lauryl methacrylate are subjected to first-stage copolymerization polymerization to obtain a polymer core with the europium complex, itaconic acid is added for continuous polymerization in the second-stage polymerization process, and the prepared fluorescent microspheres are uniform in size, high in fluorescence intensity and high in stability. The prepared detection kit has the advantages of high detection sensitivity and stable and reliable detection effect when being used for detecting the myocardial injury marker cTnI.

According to the environment-friendly scale and corrosion inhibitor for the green treatment of the circulating cooling water of the thermal power plant, the polyepoxysuccinate copolymer is synthesized, itaconic acid, sodium p-styrenesulfonate and sodium epoxysuccinate synthesized by maleic anhydride are adopted as monomers, sodium persulfate is adopted as an initiator, and a terpolymer IA / PESA / SSS is synthesized in a free combination manner; according to the optimal synthesis scheme, the molar ratio of IA to PESA is 4: 1, the molar ratio of PESA to SSS is 1: 4, the use amount of the initiator accounts for 2% of the mass of the monomer, the polymerization temperature is 95 DEG C, and the reaction time is 4 h. A dynamic simulation experiment shows that the copolymer is excellent in scale inhibition performance, and meanwhile, the synthesis evaluation is successful. According to the invention, the concentration ratio of the circulating cooling water is improved, so that the utilization ratio is improved, and the purpose of saving water is achieved; meanwhile, generation of scale substances is reduced, and high heat exchange efficiency is maintained; the corrosion condition of the system is relieved and prevented, safe operation of the system is kept, and safe and stable operation of the system is kept.

The invention discloses a preparation method of a multifunctional group synergistic modified aluminum silicate nanofiber membrane, which comprises the following steps: modifying aluminum silicate nanofiber by using an amino silane coupling agent to obtain aminated aluminum silicate nanofiber; grafting a polyamino compound to the surface of the aminated aluminum silicate nanofiber by utilizing the cross-linking effect of 1, 3-dichloropropanol through a substitution reaction of amino and chlorine, so as to obtain a multifunctional aluminum silicate nanofiber; 2-butenal is modified on the surface of the multi-functionalized aluminum silicate nanofiber by utilizing an ammonia-aldehyde condensation reaction, so that the multi-functionalized aluminum silicate nanofiber rich in double bonds is obtained; carrying out cross-linking polymerization by taking itaconic acid as a monomer and the multi-functional aluminum silicate nanofiber rich in double bonds as a cross-linking agent, then carrying out suction filtration to form a membrane, and drying to obtain the multi-functional synergistic modified aluminum silicate nanofiber membrane with the gram weight not exceeding 15g / m < 2 >. According to the invention, high-efficiency adsorption of heavy metals is realized, and the problem that aluminum silicate nanofibers are not easy to recover is solved.

The invention belongs to the technical field of high polymer materials, and particularly relates to bio-based light-cured polyurethane acrylate resin as well as a preparation method and application thereof. The preparation method of the bio-based light-cured polyurethane acrylate resin comprises the following steps: (1) mixing a catalyst, a first polymerization inhibitor, first hydroxyl acrylate and itaconic acid, stirring and reacting at 90-120 DEG C for 6-9 hours to obtain a reaction product, then adding epoxidized soybean oil, and stirring at 90-120 DEG C for 3-5 hours to obtain a prepolymer; and (2) cooling the prepolymer obtained in the step (1) to room temperature, dropwise adding second acrylic hydroxyl ester and diisocyanate, and then stirring and reacting at 30-60 DEG C for 1.5-4 hours until an NCO infrared peak value disappears, thereby obtaining the polyurethane acrylate. The resin is high in bio-based content, moderate in viscosity, good in flexibility, high in hardness, strong in adhesive force, high in glossiness, small in smell and good in storage stability, and is suitable for being applied to preparation of UV curing coatings, UV curing printing ink, UV curing adhesives, 3D printing materials and nail polish glue.

The invention discloses an antistatic polyester fiber and a preparation method thereof, and relates to the field of fibers. When the antistatic polyester fiber is prepared, N, N-dimethylethanolamine reacts with allyl chloride, and then dichloro phthalocyanine silicon is grafted to obtain modified silicon phthalocyanine; polymerizing terephthalic acid, itaconic acid and ethylene glycol, and reacting with fluorescein isothiocyanate and modified silicon phthalocyanine in sequence to obtain modified polyester chips; the preparation method comprises the following steps: reacting phosphonitrilic chloride trimer with 3-hydroxy-5-nitropyridazine, and reducing to obtain a flame retardant; and carrying out melt spinning on the modified polyester chips and a flame retardant, and reacting to obtain the antistatic polyester fiber. The antistatic polyester fiber prepared by the invention has excellent antistatic property, antibacterial property, flame retardance and mechanical property.

The invention relates to a high-friction conveyor belt material and a preparation method thereof, and belongs to the technical field of conveyor belt materials, the high-friction conveyor belt material comprises the following raw materials: 40-60 parts of hydrogenated nitrile rubber, 20-30 parts of a modified bio-based elastomer, 5-15 parts of a plasticizer, 2-5 parts of an anti-aging agent and 2-6 parts of a reinforcing agent; according to the technical scheme, itaconic acid diester, butadiene and epoxidized gutta-percha are combined through an emulsion polymerization method, and the bio-based elastomer is obtained; grafting the silane modified nano composite material onto a bio-based elastomer to obtain a modified bio-based elastomer; and mixing hydrogenated nitrile rubber, a rubber additive and the modified bio-based elastomer, adding a plasticizer, an anti-aging agent and a reinforcing agent for mixing, and carrying out vulcanization molding to finally obtain the high-friction conveyor belt material. The modified bio-based elastomer improves the wear resistance and the mechanical property of the conveying belt material, meanwhile, the environment-friendly property and the aging resistance of the conveying belt material are good, and the comprehensive performance of the high-friction conveying belt material is overall improved.

The invention relates to a corrosion and scale inhibitor for TRT and a preparation method of the corrosion and scale inhibitor, and relates to the technical field of chemical reagents. The corrosion and scale inhibitor is prepared from the following components in percentage by mass: 15 to 20 percent of morpholine, 25 to 30 percent of aminoethyl ethanolamine, 15 to 20 percent of 1-hydroxyethyl-2-undecylimidazoline onium salt, 12 to 18 percent of sodium polyaspartate, 8 to 12 percent of itaconic acid-allylsulfonic acid copolymer, 1 to 3 percent of alkyl glycoside and the balance of a mixture of water and glycerol in a mass ratio of 1 to (1 to 3). The corrosion and scale inhibitor disclosed by the invention can synchronously inhibit corrosion of an acid medium and scale deposition of salts such as NH4Cl and the like, and the corrosion inhibition rate and the scale inhibition rate are effectively improved.

The invention relates to the technical field of coatings, in particular to an associative emulsion thickener for latex paint and a preparation method of the associative emulsion thickener. The associative emulsion thickener for the latex paint is formed by polymerizing a monomer A, a monomer B and a monomer C, the monomer A is prepared from tridecyl methacrylate, diethyl itaconate and isobornyl acrylate; the monomer B comprises methyl acrylate, acrylic acid and acrylic acid-2-hydroxyethyl ester; the monomer C is prepared from diacetone acrylamide, N-isopropyl acrylamide, N-dodecyl acrylamide and ethylene glycol dimethacrylate. The thickening agent has the advantages of environmental protection, high biocompatibility and good thickening effect, solves the problem of poor stability of latex paint at low temperature and high temperature, and improves the glossiness.

The invention relates to a carboxylic acid ligand-copper metal organic framework nano material, a preparation method thereof and an injection. The carboxylic acid ligand-copper metal organic framework nano material is of a polycrystal MOF structure formed by connecting carboxylic acid ligands and copper ions through coordinate bonds; the carboxylic acid ligand comprises at least one of dicarboxylic acid and tricarboxylic acid; preferably, the dicarboxylic acid comprises at least one of itaconic acid and fumaric acid, and the tricarboxylic acid comprises at least one of aconitic acid and citric acid; the valence states of the copper ions comprise zero valence, + 1 valence and + 2 valence; preferably, based on the total amount of the copper ions being 100 at%, the total content of Cu0 and Cu + is 85-90 at%, and the content of Cu2 + is 10-15 at%.

Prodrugs of itaconic acid and 1- and 4-methyl itaconic acid and their use for treating a disease, disorder, or condition associated with inflammation are disclosed.

The invention relates to the technical field of polymer compositions, and particularly discloses a degradable bio-based food packaging material and a preparation method thereof.The degradable bio-based food packaging material is prepared from polylactic acid, ITA esterified bacterial cellulose, CSL-ITA esterified bacterial cellulose, polycaprolactone glycol, acetyl tributyl citrate, a photoinitiator and tocopherol; the preparation method comprises the following steps: esterifying bacterial cellulose hydrogel with itaconic anhydride, grafting with sodium copper chlorophyllin, dehydrating with gradient ethanol, and drying with supercritical CO2 to obtain modified powder; according to the preparation method, the interfacial compatibility of the bacterial cellulose and the polylactic acid is enhanced through ITA esterification, the illumination antibacterial function is given by utilizing CSL grafting, the polycaprolactone glycol and the acetyl tributyl citrate are synergistically used for toughening and improving the brittleness, the photoinitiator is added, the photoinitiator is added for mixing, and ultraviolet crosslinking curing is performed after film forming. The tocopherol protects the stability of the antibacterial structure of the CSL, the water resistance is improved through photo-crosslinking, and the material is degradable and meets the food packaging requirement.

The invention discloses weather-resistant unsaturated polyester resin as well as a preparation method and photovoltaic application thereof, and relates to the technical field of high polymer materials. When the weather-resistant unsaturated polyester resin is prepared, 1, 6-hexanediol, itaconic acid and an ultraviolet absorption monomer are subjected to esterification and polycondensation to prepare unsaturated polyester; the preparation method comprises the following steps: carrying out reaction on naringenin and 4-isocyanate-tetramethylpiperidine oxide to prepare a functional cross-linking agent; the preparation method comprises the following steps: reacting 3-(4-chlorphenyl) phosphine, 2, 2 '-thiobis (4-chlorophenol) and 2-butene-1, 4-diamine, and polymerizing and coating silicon dioxide to prepare pre-modified silicon dioxide; reacting the pre-modified silicon dioxide, n-butylamine and nickel acetate to obtain modified silicon dioxide; uniformly mixing unsaturated polyester, a functional cross-linking agent and modified silicon dioxide, and performing injection molding to obtain the weather-resistant unsaturated polyester resin. The weather-resistant unsaturated polyester resin prepared by the invention has excellent anti-aging, flame-retardant, self-repairing and mechanical properties.

The invention relates to the technical field of high polymer materials, and discloses self-repairing bio-based polyester resin for a matte powder coating as well as a preparation method and application of the self-repairing bio-based polyester resin. The bio-based polyester resin is prepared from the following preparation raw materials in percentage by mole: 20 mol% to 40 mol% of bio-based flexible diol, 20 mol% to 35 mol% of bio-based furandicarboxylic acid, 10 mol% to 25 mol% of isosorbide, 5 mol% to 25 mol% of itaconic acid, 1 mol% to 15 mol% of long-chain bio-based aliphatic dibasic acid, 1 mol% to 10 mol% of bio-based citric acid, 0.1 mol% to 2.0 mol% of zinc acetylacetonate, 0.1 mol% to 1.0 mol% of a microcapsule corrosion inhibitor, 0.1 mol% to 1.0 mol% of an esterification catalyst and 0.1 mol% to 1.5 mol% of an antioxidant. The bio-based polyester resin does not contain petroleum-based monomers and is high in biochar content.

The invention relates to the field of functional plastic materials, and discloses a low-moisture-absorption high-yellowing-resistance PPA material and a preparation method thereof. The low-moisture-absorption and high-yellowing-resistance PPA material is prepared from the following raw materials in parts by weight: 50-70 parts of PPA resin, 32-42 parts of glass fibers, 10-20 parts of mineral filler, 25-35 parts of hydrophobic nylon resin, 5-8 parts of a flame retardant and 1-3 parts of an antioxidant. The hydrophobic nylon resin is prepared from PA (Polyamide) resin, rosin modified maleic resin, tetrameric ricinoleate, dibutyl itaconate and a silane coupling agent; the preparation method comprises the following steps: mixing the PPA resin, the hydrophobic nylon resin, the glass fiber, the mineral filler, the flame retardant and the antioxidant, performing melt extrusion, cooling and drying. And dicing. The preparation process is simple, and the prepared PPA material has relatively good water resistance and yellowing resistance, has relatively good welding stability and temperature-resistant stability when being applied to an electronic connector, and is not easy to crack.

The invention provides anti-erosion hydraulic concrete and a preparation method thereof, and belongs to the technical field of concrete. The concrete comprises the following components: composite cement, high-activity nano-modified metakaolin, blast furnace slag powder, low-calcium fly ash, coarse aggregate, natural river sand fine aggregate, granite machine-made sand fine aggregate, an erosion inhibitor, a functional additive, an early-strength polycarboxylic high-performance water reducer, a composite air entraining agent and the like. The composite cement comprises sulphoaluminate cement, Portland cement and polymer waterproof mortar. The high-activity nano modified metakaolin is obtained by modifying metakaolin with an organic silicon-ZnO composite emulsion and then drying. The erosion inhibitor comprises organic carboxylate, a hydrophobic-crystallization complexing agent and a pH buffer type corrosion inhibitor. The functional auxiliary agent comprises an itaconic acid and acrylic acid copolymer, a JRY-F concrete waterproof agent and polyethylene glycol-400 dilaurate. The composite air entraining agent comprises liquid sodium abietate and sodium alpha-olefin sulfonate. Through component synergism, modification and grading, an anti-erosion barrier is constructed.

The invention discloses a silane-crosslinked low-smoke halogen-free flame-retardant oil-resistant polyolefin cable material and a preparation method thereof. The method comprises the following steps: preparing a bio-based polyesteramide toughening phase which is pre-polymerized by castor oil-based polyamide and poly (butylene adipate-co-terephthalate) and is terminated by itaconic anhydride; the preparation method comprises the following steps: self-assembling phytic acid and melamine to wrap ammonium polyphosphate, so as to prepare supramolecular flame-retardant gel powder; the method comprises the following steps: grafting aramid pulp fibers by using a phosphorus-containing silane coupling agent to prepare a reactive liquid crystal reinforced phase; the preparation method comprises the following steps: blending and banburying the components with a hydrogenated styrene-isoprene-styrene block copolymer, an antioxidant and a peroxide cross-linking agent, carrying out dynamic vulcanization and interface bonding, and carrying out extrusion and electron beam irradiation to finally crosslink. An interpenetrating-topology network structure is formed in the prepared cable material, the crosslinking degree is larger than or equal to 82%, and the cable material is rapid in crosslinking, excellent in oil resistance, low in smoke and free of toxicity and is particularly suitable for super high-rise building hanging cables, deep sea exploration cables and new energy automobile liquid cooling cables.

The present invention provides a method for preparing ultra-high performance carbon fiber, and relates to the technical field of carbon fiber. The preparation method comprises: after mixing acrylonitrile, itaconic acid, a solvent, and an initiator, adding a molecular weight regulator, first reacting at 55-65°C in the first stage for 1-3 hours, and then heating to 65-75°C in the second stage at a heating rate of 0.05-0.15°C / min for 13-15 hours; then removing the acrylonitrile monomer, concentrating, ammonifying, and filtering to obtain a polyacrylonitrile spinning solution. Then prepare a polyacrylonitrile precursor, and finally carbonize the polyacrylonitrile precursor to obtain carbon fiber. The present invention adopts a staged temperature-controlled polymerization method to optimize the molecular weight distribution, molecular chain structure, and degree of polymerization of the polymer, thereby improving the uniformity, thermal stability, and solvent solubility of the polyacrylonitrile polymer, and finally obtaining a T1100-grade ultra-high performance carbon fiber with excellent mechanical properties.

The invention discloses a synthesis method of special bio-based unsaturated polyester resin for zero-crystalline silicon quartz stone, which comprises the following steps: firstly, putting bio-based dihydric alcohol, 2, 5-furandicarboxylic acid, itaconic acid, an antioxidant and a polymerization inhibitor into a reaction kettle, heating to 205-210 DEG C, carrying out polymerization reaction for 2-4 hours, then vacuumizing for 2-3 hours, and cooling to room temperature to obtain the special bio-based unsaturated polyester resin for zero-crystalline silicon quartz stone. When the reaction acid value is tested to be smaller than 25 mgKOH / g and the cone plate viscosity at 125 DEG C is 500-900 mpa.s, the reaction endpoint is reached, finally, a bio-based crosslinking monomer is added for dilution, and the bio-based unsaturated polyester resin special for the zero-crystallization silicon quartz stone is obtained. The bio-based unsaturated polyester resin special for the zero-crystalline silicon quartz stone synthesized by the method can meet the requirements of a zero-crystalline silicon quartz stone production process, and solves the problems that a zero-crystalline silicon quartz stone plate is easy to generate surface pulverization corrosion, glass explosion and the like.

The invention relates to the field of free radical solution polymerization programmed monomer supplementation, in particular to a polyacrylonitrile spinning solution with an adjustable molecular sequence and a preparation method thereof.The preparation method comprises the steps that polymerization solution formula components and dosage ranges are determined, and the components comprise acrylonitrile, itaconic acid, methyl methacrylate or fumaramide and the like; the thermodynamic reaction temperature ranges from 60 DEG C to 66 DEG C, the total monomer concentration ranges from 18 wt% to 26 wt%, and the initiator concentration ranges from 0.072 wt% to 0.103 wt%. When preparation is started, all components except for partial itaconic acid are added, then itaconic acid is supplemented in batches, and the supplementing time and the proportion range interval can be calculated according to a specific formula. The itaconic acid is supplemented in a manner of body nitrogen blowing or metered addition after dissolution, and the solution concentration is less than or equal to 55wt%. According to the method, the molecular sequence can be accurately regulated and controlled, the homogeneity of the copolymer is improved, heat release in the polymerization process is uniform, a stable environment is provided for industrial production, meanwhile, a reaction system is optimized, and the reaction efficiency and the product yield are improved.

The invention discloses a high temperature resistant carboxylic acid type acrylate rubber and a manufacturing method thereof, comprising 35 to 80 parts by weight of acrylate monomer raw materials, 5 parts of carboxylic acid type monomer raw materials, 15 to 60 parts of monomer raw materials for improving the high temperature resistance of rubber, 3 parts of emulsifier and 250 parts of deionized water; the acrylate monomer raw materials are at least one of ethyl acrylate, butyl acrylate, methoxyethyl acrylate and ethoxyethyl acrylate; the carboxylic acid type monomer raw materials have cross-linking active groups, and the carboxylic acid type monomer raw materials are at least one of itaconic acid, monobutyl itaconic acid, acrylic acid, fumaric acid and monobutyl fumarate; the monomer raw materials for improving the high temperature resistance of rubber are at least one of styrene, acrylonitrile, methyl acrylate and methyl methacrylate. By adding monomer raw materials for improving the high temperature resistance of rubber, the high temperature resistance of the final rubber is increased, so that the application field of acrylate rubber is wider and can meet some special use requirements with high high temperature resistance requirements.

The invention relates to a method for producing a release agent (2), wherein the method comprises at least the following steps: a) providing a reactive mixture comprising a carboxylic acid-containing monomer component, which comprises, preferably and / or consists of, itaconic acid and / or itaconic acid derivatives; b) polymerizing the reactive mixture to form a polymer solution, wherein the polymer solution comprises a polymer which is at least partially dissolved in a solvent and which has the carboxylic acid-containing monomer component, c) obtaining a release agent (2) comprising the polymer solution, wherein from the release agent, preferably the polymer of the release agent, CO 2 is releasable; as well as a release agent (2) and a use of the release agent (2).

The invention relates to the technical field of water-based propylene ink, and discloses high-stability water-based propylene ink and a preparation method thereof.The high-stability water-based propylene ink is prepared from, by mass, 30-35 parts of pigment, 10-15 parts of modified dispersing agent, 2-5 parts of modified nano chromic oxide, 1-2 parts of resin, 0.5-1 part of anti-settling agent and 40-50 parts of solvent. Acrylic resin formed by modified cellulose, acrylic acid and itaconic acid serves as a dispersing agent of the water-based propylene ink, the motion resistance of pigment sinking can be increased, the pigment sinking phenomenon is further prevented, and the stability of the water-based propylene ink is remarkably improved; the side chain of the acrylic resin can be adsorbed into the cavity structure of carboxymethyl-beta-cyclodextrin in the modified cellulose, so that the stability of the acrylic resin in the water-based propylene ink can be further enhanced, and the effect of preventing the pigment from settling can be better exerted; tannic acid in the modified nano chromic oxide contains a large number of hydrophobic benzene rings, so that the water resistance of the water-based propylene ink can be enhanced.

The invention relates to the technical field of rubber materials, in particular to a wear-resistant non-slip rubber outsole material and a preparation method of the wear-resistant non-slip rubber outsole material. The rubber material is prepared from the following components in parts by mass: 10 to 40 parts of natural rubber, 10 to 20 parts of epoxidized natural rubber, 40 to 80 parts of itaconate rubber, 10 to 60 parts of rice husk white carbon black, 5 to 20 parts of lignin, 5 to 20 parts of cellulose filler, 1 to 6 parts of coupling agent, 1 to 6 parts of dispersing agent, 0.5 to 2 parts of paraffin, 1 to 5 parts of resin, 1 to 3 parts of antioxidant, 1 to 5 parts of active agent, 0.5 to 2 parts of stearic acid, 1 to 3 parts of accelerant and 1 to 3 parts of sulfur. According to the invention, a bio-based rubber material is used as a matrix, various reinforcing fillers and processing aids from bio-based sources are used, the mechanical strength, wear resistance and slip resistance of the material are improved through a modified composite technology, and a material support is provided for green and sustainable development of shoe materials.