366 results about "Itaconic acid" patented technology

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 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 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 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 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.

The invention relates to the field of bio-based composite materials, and discloses a bioplastic-based coupling agent, a modified bamboo fiber, a composite material and a preparation method and application of the bioplastic-based coupling agent and the modified bamboo fiber. The coupling agent is a product obtained by modifying polyhydroxybutyrate valerate and a grafting monomer, and the grafting monomer is at least one of maleic anhydride, acrylic acid or itaconic anhydride. The delignification bamboo powder is modified with the coupling agent, and the modified bamboo fiber, polyhydroxybutyrate-hydroxyvalerate, an initiator and an auxiliary agent are subjected to melt blending to obtain the composite material. The tensile strength and the bending strength of the composite material are respectively improved by 175% and 117%, and the crystallization ability and the thermal stability are also synchronously improved. According to the invention, the unification of high strength, thermal stability and excellent interfacial compatibility is realized while the degradability of the system is maintained, and the composite material has a good green composite material application prospect.

The invention belongs to the technical field of scale inhibitors, and particularly relates to a slow-release scale inhibitor and a preparation method thereof.The preparation method comprises the steps that 3, 4, 5-allyl trihydroxybenzoate, itaconic acid, sodium hydrogen sulfite, methacryloyloxyethyl-n-hexadecyl-dimethyl ammonium bromide and deionized water are mixed, after water bath heating, an ammonium persulfate aqueous solution is slowly added, and the scale inhibitor is obtained after reaction; the preparation method comprises the following steps: dissolving agar in deionized water, adding polyethylene glycol modified sodium alginate and a scale inhibitor into the deionized water, stirring, dropwise adding into edible oil to obtain gel microspheres, adding the gel microspheres into a calcium chloride aqueous solution, slowly stirring, cross-linking, cleaning and drying to obtain the slow-release scale inhibitor. The hydrogel microspheres swell to slowly release the scale inhibitor, meanwhile, the released scale inhibitor is hydrolyzed in water, ester groups are slowly broken, polycarboxylic acid, 3, 4, 5-trihydroxybenzoic acid and hydroxyethyl-n-hexadecyl-dimethyl ammonium bromide are slowly released, and good scale inhibition and corrosion inhibition effects are achieved.

The invention provides a seawater soaking wound hydrogel dressing and a preparation method thereof, a drug-loaded nano system 4OI (at) ZIF-8 (at) PAD with a core-shell structure is constructed, an anti-inflammatory drug 4-octyl itaconic acid and zinc ions are jointly encapsulated in a ZIF-8 framework, and a polydopamine coating is wrapped, so that synergistic loading and controllable release of the drug and metal ions are realized. According to the dressing, dopamine modified hyaluronic acid is used as a matrix, a temperature-sensitive material and an enzyme catalysis cross-linking system are combined, stable gel can be rapidly formed in situ within 5 seconds, and the dressing has excellent tissue adhesion performance (the adhesion strength reaches 6.7 kPa). Experiments prove that the hydrogel dressing has the characteristics of broad-spectrum antibiosis, inflammation regulation and control and long-acting release. Animal experiments prove that the healing rate of seawater soaking wounds treated by the dressing on the twelfth day is as high as 95.7% and is remarkably superior to that of a commercial silver ion gel control group, scars are less after healing, and an efficient, safe and easy-to-implement scheme is provided for marine environment wound nursing.

The invention provides an inorganic composite high-strength oil-water well water shutoff material and a preparation method thereof, and belongs to the technical field of oilfield chemical agents. The material is prepared from the following raw materials in percentage by weight: 15%-20% of a high-activity mineral admixture, 2%-8% of high-performance silicate, 3%-5% of an agriculture and forestry biomass material with the particle size of 1-10 microns, 5%-8% of a suspending agent, 0.5%-0.7% of a dispersing agent, 0.04%-0.05% of a retarder, 1%-2% of a reinforcing agent, itaconic acid modified acrylate, a pH regulator and the balance of water. The preparation method comprises a step-by-step mixing and stirring process. According to the invention, 3-5% of waste agricultural and forestry biomass is utilized, through the synergistic effect of all the components, the prepared water plugging material has the advantages of high compressive strength (1.79 MPa), controllable curing time (24-48 hours), good slurry stability, high temperature resistance (greater than or equal to 140 DEG C) and the like, unification of waste recycling and high-performance water plugging materials is realized, and the water plugging material is especially suitable for water plugging operation of high-temperature fractured reservoirs.

The invention discloses a water treatment filtering material and a preparation method thereof, and relates to the technical field of filtering materials. When the water treatment filtering material is prepared, firstly, acrylonitrile, itaconic acid and ethylene 2-(methacryloyloxy) ethyl phosphate are copolymerized to prepare copolymerized modified polyacrylonitrile; the preparation method comprises the following steps: carrying out hydrothermal reaction on a copper source and tetrabutyl titanate, and calcining to obtain copper-doped nano titanium dioxide; the copper-doped nano titanium dioxide and KH-550 are subjected to a reaction, and modified nano titanium dioxide is prepared; carrying out electrostatic spinning on the copolymerized modified polyacrylonitrile, and carrying out nano-spray loading on the modified nano titanium dioxide to prepare a modified polyacrylonitrile fiber membrane; and reacting the modified polyacrylonitrile fiber membrane in a covalent organic framework growth solution to prepare the water treatment filtering material. The prepared water treatment filtering material has the advantages of being antibacterial, anti-pollution, high in filtering efficiency and long in service life.

The invention discloses a soil-improving growth-promoting modified lignin soil conditioner and a preparation method thereof, and belongs to the technical field of high polymer materials and soil improvement. The modified lignin soil conditioner comprises an agent A, an agent B and an agent C, the agent A is a cationic modified lignin polymer and is prepared by graft copolymerization of lignosulfonate and a cationic monomer in a free radical initiation mode; the agent B is lignin controlled-release particles and is prepared by wrapping an amino acid amphoteric regulator in the cationic modified lignin polymer and another negative charge natural polymer through electrostatic intercalation self-assembly; the agent C is at least one of citric acid, lactic acid, itaconic acid, fulvic acid, wood vinegar, maleic acid, maleic anhydride and polyacrylic acid. The soil conditioner disclosed by the invention has the advantages of low cost, environment friendliness and efficient repairing performance, and an innovative solution is provided for agricultural soil improvement.

The invention relates to the technical field of dispersing agents, and particularly discloses a polycarboxylic acid type dispersing agent as well as a preparation method and application thereof. The preparation method comprises the following steps: polymerizing itaconic acid, 2-acrylamide-2-methylpropanesulfonic acid, glycidyl methacrylate, methyl styrene, gamma-methacryloxypropyltrimethoxysilane, the modified hybrid compound, vinyl 2-mercaptopropionate and allyl polyoxyethylene ether to obtain a polycarboxylic acid type dispersing agent; the dispersing agent has excellent dispersing performance and heat resistance, the dispersing agent is not prone to losing efficacy in the high-temperature vulcanization process in the rubber processing process, and when filler and rubber are mixed, the dispersing agent is firmly adsorbed on the surfaces of filler particles through multiple acting forces, so that the dispersing agent is not prone to losing efficacy, and the service life of the dispersing agent is prolonged. The dispersing performance of the filler and the interface bonding force with rubber are improved, so that the filler is uniformly distributed in the rubber, a stable dispersion system is formed, the mechanical property of vulcanized rubber is improved, and the processing fluidity is improved.

The invention discloses an ester group-containing organic silicon tackifier as well as a preparation method and application thereof. The preparation method of the ester group-containing organic silicon tackifier comprises the following steps: dissolving an itaconic acid compound and hydrogen-containing silicone oil in a solvent, uniformly stirring, adding a catalyst, heating to 25-100 DEG C, reacting, and distilling out the solvent under reduced pressure after the reaction is finished, thereby obtaining the ester group-containing organic silicon tackifier. The tackifier prepared by the invention can effectively improve the adhesion performance of addition type liquid silicone rubber (ALSR) to materials such as polyester fibers, stainless steel iron sheets and aluminum sheets. The additive amount is small, the silicone rubber solution has good compatibility with silicone rubber, and the formed silicone rubber solution is stable in property and long in storage life. In addition, the itaconic acid diester and the itaconic anhydride belong to renewable biomass materials, so that the cost is relatively low.

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%.

To provide a high polymer dispersant including, as an effective component, a structural unit derived from an itaconic acid as a biomass material, the dispersant enabling preparation of a pigment dispersion having excellent pigment dispersibility and an aqueous inkjet ink having excellent ejectability and allowing recording of an image with excellent image quality, adhesion to a substrate, and durability, as well as a method for producing the dispersant.SOLUTION: A polymer dispersant for dispersing a pigment, the dispersant comprising a structural unit (i) derived from itaconic acid or the like in an amount of 5-20 mass%, a structural unit (ii) derived from isobornyl acrylate in an amount of 15-45 mass%, a structural unit (iii) derived from tetrahydrofurfuryl acrylate or the like in an amount of 10-40 mass%, and a structural unit (iv) derived from styrene or the like in an amount of 15-45 mass%, the polymer being a carboxyl group-containing polymer having a number average molecular weight of 10,000-30,000, at least a part of the carboxyl groups being neutralized with an alkali and dissolving in water.SELECTED DRAWING: None

The application discloses a kind of for multi-substrate coating fast-curable water-based acrylic modified epoxy resin emulsion and its preparation method, first by itaconic acid, alcohol ether solvent and bisphenol A type epoxy resin synthesis epoxy adduct intermediate product, then with other acrylic monomer free radical polymerization is formed acrylic modified epoxy resin with this intermediate product, finally using additional epoxy emulsifier by phase inversion method is made water-based acrylic modified epoxy resin emulsion.The emulsion prepared in the application has higher glass transition temperature, has faster surface dry and curing speed, can satisfy the fast curing of coating film on various substrate workpieces, workpiece offline stacking resistance requirements;Side chain contains a certain amount of carboxyl and hydroxyl, can give coating excellent adhesion, realize good adhesion on various substrates;Resin structure contains a certain amount of bisphenol A type epoxy resin, and epoxy-amine curing agent is well compatible after curing, and coating is uniform.

The application discloses a water treatment filtering material and a preparation method thereof, and relates to the technical field of filtering materials. In the preparation of the water treatment filtering material, acrylonitrile is first copolymerized with itaconic acid and 2-(methacryloyloxy)ethyl phosphate to obtain copolymerized modified polyacrylonitrile; a copper source is hydrothermally reacted with tetrabutyl titanate and then calcined to obtain copper-doped nanometer titanium dioxide; the copper-doped nanometer titanium dioxide is reacted with KH-550 to obtain modified nanometer titanium dioxide; the copolymerized modified polyacrylonitrile is electrospun and nanometer-sprayed to load the modified nanometer titanium dioxide to obtain a modified polyacrylonitrile fiber membrane; and the modified polyacrylonitrile fiber membrane is reacted in a covalent organic framework growth solution to obtain the water treatment filtering material. The water treatment filtering material prepared by the application has the advantages of antibiosis, anti-pollution, high filtering efficiency and long service life.

The application belongs to the technical field of oil exploitation, and particularly relates to a temporary plugging agent for fracturing acidification and a preparation method thereof. The preparation method is as follows: in a reactor, itaconic acid, p-styrene sulfonic acid, 2-allyloxy methyl-2-hydroxymethyl propane-1,3-diol, vinyl pyridine, pentaerythritol diacrylate, buffer salt and deionized water are sequentially added, stirring is conducted, the pH value is adjusted, and all raw materials are completely dissolved; an initiator is added from a high-position dropping tank, the reaction is automatically heated, the reaction is kept, a reducing agent is added, the reaction is terminated, the pH value is adjusted, and a temporary plugging agent solution is obtained; the temporary plugging agent solution is dried and granulated to obtain the product temporary plugging agent. The preparation method has the characteristics of simple synthesis process and no by-products; the temporary plugging agent has the advantages of large water absorption, large plugging strength, high breakthrough pressure, self-degradation and designable degradation time.

The invention discloses a graphene quantum dot reinforced copper-based composite material and a preparation method thereof. The preparation method of the graphene quantum dot reinforced copper-based composite material comprises the following steps: (1) taking itaconic acid and ethidene diamine as precursors, synthesizing graphene quantum dots GQDs through a hydrothermal method, and centrifuging, dialyzing and freeze-drying to obtain GQDs powder; (2) preparing the graphene quantum dot GQDs powder into GQDs / Cu2O composite powder through a molecular-level blending method; and (3) the GQDs / Cu2O composite powder is annealed and reduced into GQDs / Cu composite powder in the Ar / H atmosphere, then vacuum ball milling and spark plasma sintering treatment are conducted, and the block GQDs / Cu composite material is prepared. The method disclosed by the invention is green, safe and low in cost, and the prepared composite material is uniform in GQDs dispersion and strong in interface bonding, has excellent conductivity and corrosion resistance, and is suitable for the fields of electronics, electrics, aerospace and the like.

The present invention provides a composition comprising the reaction product of a) itaconic anhydride; and b) an amino compound comprising at least one free amino group, wherein the amino compound is selected from hydrolysed proteins; wherein the composition comprises itaconic modified amino compound, wherein the itaconic modified amino compound is the reaction product of a) and b). In another embodiment, the amino compound is selected from the group consisting of amino acids, peptides and hydrolysed proteins. The invention further provides a home care formulation comprising the composition of the invention, a fabric conditioner or softener, a method of treating fibres and a use of the composition.

The invention discloses soap-free polymerized styrene-butadiene latex and a preparation method thereof, and belongs to the technical field of styrene-butadiene latex preparation. Comprising the following components in parts by weight: 25 to 35 parts of butadiene, 40 to 50 parts of styrene, 1.5 to 3 parts of hydrophilic functional monomer, 0.8 to 1.5 parts of N-hydroxyethyl acrylamide, 0.3 to 0.8 part of initiator, 3 to 5 parts of DNS-86, 70 to 80 parts of deionized water and 0.1 to 0.5 part of pH regulator. Wherein the hydrophilic functional monomer comprises methacrylic acid and itaconic acid monomethyl ester in a mass ratio of (2-1): (3-6). DNS-86 is cooperated with a hydrophilic functional monomer and N-hydroxyethyl acrylamide, so that the stable proceeding of the polymerization process can be ensured, and the styrene-butadiene latex can obtain more excellent comprehensive properties in the aspects of stability, film-forming property, binding force with a base material and the like through the synergistic enhancement of intermolecular acting force.

The invention discloses a black mulching film for rice cultivation and a preparation method thereof, and relates to the technical field of agricultural high polymer materials. When the black mulching film for rice cultivation is prepared, 1, 4-butanediol, butanedioic anhydride and itaconic acid are subjected to vacuum polycondensation to prepare a poly (butylene succinate)-itaconic acid block copolymer; performing esterification reaction on starch and octenyl succinic anhydride to obtain modified starch; the preparation method comprises the following steps: pyrolyzing corn straws to prepare biological carbon black, carrying out acid pickling activation, loading abamectin, and carrying out surface modification by using 3-mercaptopropyltrimethoxysilane to prepare surface-modified drug-loaded biological-based carbon black powder; and mixing the poly (butylene succinate)-itaconic acid segmented copolymer, modified starch, the surface modified drug-loaded bio-based carbon black powder and glycerol according to a ratio, performing twin-screw extrusion, promoting a click chemical reaction between double bonds and sulfydryl, performing granulation, and performing blow molding to obtain the black mulching film for rice cultivation. The prepared black mulching film for rice cultivation has biodegradability, excellent mechanical properties and a slow-release insecticidal function.

The invention discloses a preparation method of a phosphorus-doped high-performance ternary polyacrylonitrile precursor and a carbon fiber, and belongs to the field of preparation of carbon fiber precursors. The method comprises the following steps: under the protection of nitrogen, respectively adding a first monomer acrylonitrile, a second monomer itaconic acid and an initiator into a solvent, introducing a third monomer allyl phosphate by adopting a continuous dropwise adding mode, reacting at a certain temperature to obtain an acrylonitrile terpolymer, and carrying out ammonia ammonification, filtration, vacuum monomer removal and defoaming to obtain a spinning solution; carrying out dry-jet wet spinning, water washing, drafting, oiling, drying and densifying, high-pressure steam drafting, heat setting and other processes to obtain a polyacrylonitrile precursor; and pre-oxidizing, carbonizing and graphitizing the precursor to obtain the final carbon fiber. The phosphorus-containing comonomer is introduced in the polymerization stage, so that the phosphorus element is uniformly distributed in the fiber, the catalytic graphitization effect of phosphorus is fully exerted, the graphitization temperature is reduced by 200-300 DEG C, and the preparation cost of the high-modulus carbon fiber can be remarkably reduced.

The invention discloses a lignin-based self-repairing binder as well as a preparation method and application thereof, and belongs to the technical field of lithium ion batteries. A preparation method of the lignin-based self-repairing binder comprises the following steps: mixing polyacrylic acid, lignosulfonate and a lithium lipoate-based material in a solution, and then carrying out heat treatment to obtain the lignin-based self-repairing binder, the lithium lipoic acid-based material is lithium lipoic acid or itaconic acid cross-linked lithium polylipoic acid. The binder obtained by the invention has a three-dimensional network structure, a lithiated lipoic acid chain segment is introduced into the binder, and lignosulfonate is used as a cross-linked network fulcrum, so that the binder has good adhesion. And lithium ions and polylipoic acid with a cross-linked structure are introduced, so that the cycle performance and the rate capability of the lithium ion battery under high current density are improved.

The invention discloses a production method of a high-transparency and high-toughness BOPA (Biaxially Oriented Polyamide) film. The BOPA film is prepared from PA6T / 6I, a polyether-b-amide thermoplastic elastomer, POE (Polyolefin Elastomer), bis (tert-butylperoxyisopropyl) benzene, itaconic acid, zinc hydroxide, styrene and an antioxidant. The compatibility of the ITA-grafted POE is obviously improved, the tensile strength and the elongation at break of the blend are obviously improved, the toughening effect is effectively improved, the modified POE neutralized by the zinc hydroxide part not only can improve the compatibility between PA6T / 6I and POE, but also can reduce the influence of stable chemical bonds on the fluidity reduction of the blend, so that the toughness of the blend is improved. The later-stage processability of the blend is facilitated, and the product quality is improved; the polyether-b-amide thermoplastic elastomer, as a multi-block elastomer composed of a hard segment and a soft segment, can further improve the toughness of the blending material.

The present application relates to the technical fields of high polymer material and ultraviolet (UV) curing coating, and particularly relates to an epoxy acrylate / itaconic acid derivative composite photocuring coating composition, a preparation method thereof, a photocuring coating layer and application.The photocuring coating composition comprises the following components in parts by mass: an epoxy acrylate / itaconic acid derivative composite photocuring resin: 40-80 parts; an active diluent: 20-60 parts; and a photoinitiator: 1-8 parts.The present application provides a bio-based monomer IG with high crosslinking activity, a green catalyst-free and solvent-free preparation method of the bio-based monomer IG, and an innovative petroleum-based / bio-based resin composite strategy and a coating composition thereof, so that the mechanical strength of the petroleum-based EA is efficiently enhanced, and meanwhile, the mechanical properties of the composite system still maintain a high level after the active diluent is added, the application range of the EA is expanded, and the petroleum-based resin is modified to be green and high-performance.

The invention relates to the field of battery materials, in particular to a binder and a preparation method thereof, a negative plate and a lithium ion battery. According to the preparation method of the adhesive provided by the invention, a monomer 1 (an itaconic acid-based monomer and / or a fumaric acid-based monomer) is adopted as a main flexible monomer and is copolymerized with conjugated diene, a monomer 2 (a carboxylic acid-based monomer shown in a formula (2)) and a cross-linking monomer, and meanwhile, an amino polyoxyethylene ether nonionic emulsifier is introduced, so that the adhesive is prepared. And by means of a pre-emulsification process, monomer ratio regulation and control, pre-lithiation realized by using lithium alkali in the later stage and the like, a low swelling rate is realized, so that the bonding strength of the material and high conductivity of electrode electrons and ions are ensured, and excellent low-temperature performance is also realized.

The invention discloses a lipidosome composite hydrogel microsphere for repairing damaged intestinal mucosa and a preparation method thereof, LHMs (at) 4-OI is composed of hyaluronic acid modified targeted drug-loaded lipidosome, sodium alginate, hydrochloric acid treated sucralfate and a CaCl cross-linking agent, and rapid gel forming is carried out under the voltage of 11.0 KV through an electrospray technology. The microspheres have pH responsiveness and gastric juice digestion resistance, CD44 receptor targeting is achieved through hyaluronic acid modification, sodium alginate and Ca form an egg box structure to provide a three-dimensional network, and sucralfate enhances adhesion to isolate harmful substances. The preparation method comprises the steps of preparation of the drug-loaded liposome by a film hydration method, hyaluronic acid modification and electrospray crosslinking, is simple to operate and low in cost, and can be used for large-scale production. The microspheres can effectively load an anti-inflammatory drug 4-OI, inhibit expression of inflammatory factors and promote self-repair of damaged intestinal mucosa, and have wide application prospects in the fields of abdominal infection, inflammatory bowel diseases, colorectal cancer and the like.

The invention discloses a plant-based water filtering material and a preparation method thereof, and relates to the technical field of filtering materials. When the plant-based water body filtering material is prepared, 4-(10, 15, 20-triphenyl porphyrin-5-yl) aniline sequentially reacts with acrylic acid-2, 3-epoxypropyl ester and zinc acetate to obtain an alkenyl porphyrin zinc complex; the preparation method comprises the following steps: reacting chitosan with an alkenyl porphyrin zinc complex to obtain modified chitosan; reacting the oxidized reed carbon with butyl trimethyl ammonium chloride to obtain modified reed carbon; preparing a spinning solution from polybutylene terephthalate, the modified chitosan and the modified reed carbon, and performing electrostatic spinning to obtain a fiber membrane; itaconic acid and alkenyl benzisothiazolinone are prepared into a finishing solution; and finishing the fiber membrane with the finishing liquid to obtain the plant-based water filtering material. The plant-based water filtering material prepared by the invention can adsorb and catalytically degrade organic dyes in wastewater and adsorb heavy metals, and also has an antibacterial effect.