206 results about "Vinyl ester" patented technology

The invention discloses an underground chamber structure of a compressed air energy storage power station, a construction method and a parameter optimization design method, and belongs to the field of compressed air energy storage and underground space engineering. A hard rock stratum building chamber is determined through systematic site selection investigation, a high-performance concrete lining (containing fiber reinforcement) and a polyurethane buffer layer are adopted to synergistically improve the stability, and a vinyl ester resin-based glass fiber reinforced plastic three-layer composite structure serves as a sealing layer (including a bonding layer, a reinforcement layer and an impermeable layer); the processes of sand blasting pretreatment, stepped joint and the like are combined to guarantee the sealing performance; meanwhile, on the basis of a finite element model, structural parameters are optimized by taking the lowest whole life cycle cost as a target and taking strength, deformation, leakage rate and the like as constraints, and a recommended parameter combination of each structural layer is obtained in combination with an orthogonal experimental design and an improved genetic algorithm. The method is suitable for various geological conditions, the safety, economical efficiency and adaptability of the compressed air energy storage power station are effectively improved, and the method is suitable for large-scale application and popularization.

The invention discloses a silica gel pad with high thermal conductivity and heat resistance and a preparation method thereof, and the method comprises the following steps: preparing a composite thermal conductive filler, mixing boron nitride nanosheets and graphene according to a certain mass ratio, adding a silane coupling agent, carrying out ball milling, adding spherical alumina, and mixing; preparing modified organic silicon resin, wherein methyl vinyl silicone rubber, hydrogen-containing silicone oil, a platinum catalyst and MQ silicon resin react to obtain the modified organic silicon resin; mixing and defoaming the modified organic silicon resin, the composite heat-conducting filler, the flame retardant and the antioxidant to obtain a heat-conducting silica gel mixture; preparing a reinforced base material, carrying out plasma treatment on glass fiber cloth, and then impregnating the glass fiber cloth with vinyl ester resin for pre-curing; and grinding the mixture by three rollers, coating the mixture on a reinforced base material, and heating and curing. The thermal conductivity of the obtained silica gel pad is 2.5-3.5 W / m.K, the volume resistivity is larger than 1012 omega.cm, the long-term heat-resistant temperature reaches 200 DEG C or above, the tensile strength is larger than 5 MPa, the peel strength is larger than 15 N / cm, and the silica gel pad has excellent thermal conductivity, insulativity, heat resistance and mechanical strength.

The invention discloses a multifunctional composite diaphragm for a sodium ion battery and a preparation method of the multifunctional composite diaphragm, and belongs to the technical field of electrochemical energy storage devices. The multifunctional composite diaphragm for the sodium ion battery prepared by the invention comprises a polymer matrix, an inorganic nanofiller and a sodium ion conduction accelerant, and the polymer matrix comprises at least one structural polymer and at least one synergistic polymer, the synergistic polymer is composed of a vinyl lactam polymer and a vinyl ester polymer according to a specific ratio, and the sodium ion conduction accelerator comprises at least one of soluble sodium salts. Through the synergistic effect of vinyl lactam and vinyl ester polymers, the adaptability of the structural polymer, the dispersity of the inorganic filler and the conduction efficiency of sodium ions are comprehensively optimized. The obtained composite diaphragm can simultaneously achieve the core functions of high electrolyte wettability, high thermal stability and efficient sodium ion conduction, and meets the multifunctional requirements of high-safety and high-performance sodium ion batteries.

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.

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

The present invention relates to polymer processing aid compositions for polyolefins, their methods of manufacture and articles made from the compositions as well as use of the compositions for the removal or reduction of sharkskin melt fracture or reduction in the formation of die lip build-up. Compositions of the present invention may also be substantially free of fluorine and in some embodiments substantially free of siloxane.

The invention discloses a light high-strength corrosion-resistant composite insulated electric pole and a preparation method thereof, and belongs to the technical field of power transmission facilities. The electric pole is of a conical hollow structure, and an inner tough layer, a structural layer and an outer protective layer are sequentially compounded on a wall layer from inside to outside. The inner tough layer is made of a hyperbranched polyester modified epoxy vinyl ester-glass fiber composite material, so that the electric pole is endowed with excellent bending resilience performance; the structural layer is made of S glass fiber and T700 carbon fiber hybrid reinforced epoxy resin, so that high strength and rigidity are ensured; the outer protective layer is a fluorinated polyurethane / boron nitride composite coating, and provides long-acting weather resistance, corrosion resistance and insulation protection. According to the invention, through collaborative design of multi-layer materials and an integrated forming process, light weight, high mechanical strength, excellent insulativity and recoverability after bending of the electric pole are realized, and the electric pole is suitable for electric power line construction in a harsh environment.

The present invention provides a thermosetting resin composition for electromagnetic wave shielding, a bulk molding compound, and a molded product thereof, which are excellent in fluidity, injection molding property, compression molding property, and in which a molded product excellent in electromagnetic wave shielding property can be obtained. The thermosetting resin composition for electromagnetic wave shielding is characterized by containing a thermosetting resin (A) containing an unsaturated polyester resin (a1) and a vinyl ester resin (a2), a low shrinkage agent (B), a thickening agent (C) containing acrylic resin particles (c1) and magnesium oxide (c2), a thermally conductive filler (D), and a reinforcing material (E).

The invention belongs to the technical field of functional coatings, and particularly relates to a static conductive coating for nonmetal and a preparation method of the static conductive coating. The coating is composed of modified Si-C fluorosilicone resin, conductive nickel powder, ethandiamide and multiple auxiliaries, the modified Si-C fluorosilicone resin is prepared through a double-grafting reaction of mercaptoethanol and vinyl trifluoroacrylate,-S-and-CF groups are introduced into molecules at the same time, and the polarity of the resin and the dispersity of the conductive nickel powder are remarkably improved. The oxadiamide as a polar small molecule synergist can promote the formation of a conductive network and enhance the interface bonding force. The surface resistivity of the obtained coating is about 2.8 * 10 omega / square, the static decay time is 0.38 s, the adhesive force reaches 5B, and the conductivity retention rate after wear resistance exceeds 97%. The coating has excellent static conductivity, adhesive force and environmental stability, is suitable for the surfaces of non-metal base materials such as ABS, PVC and polycarbonate, and can be widely applied to the fields of electronic equipment shells, rail transit interior trim parts, anti-explosion and anti-static terraces and the like.

The invention relates to the technical field of lithium ion battery key materials, in particular to a cross-linked polyacrylic acid / polyvinyl alcohol composite binder and a preparation method and application thereof. The binder is prepared by introducing N, N-dimethylformamide into a water-soluble acrylic monomer, an ethylenically-bond-containing acrylonitrile monomer and a vinyl ester monomer through ternary polymerization; n, N-methylene bisacrylamide (MBA) forms a rigid-flexible three-dimensional chemical cross-linked network, and then the rigid-flexible three-dimensional chemical cross-linked network and polyvinyl alcohol (PVA) construct an interpenetrating network (IPN) through hydrogen-bond interaction. The dual cross-linked network has the structural stability of chemical cross-linking and the dynamic adaptability of physical cross-linking, when the charging and discharging volume of the silicon-based negative electrode changes, stress is dissipated through network elastic deformation, meanwhile, interface bonding is strengthened through the ionic bond action of a lithium carboxylate group, active substance falling and electrode pulverization are inhibited, and the service life of the silicon-based negative electrode is prolonged. And the cycle life of the high-energy-density lithium ion battery is remarkably prolonged.

The invention provides an anti-carbonization coating and a preparation method thereof, and relates to the field of coatings. The anti-carbonization coating is prepared from the following components in parts by weight: 32 to 38 parts of vinyl ester resin, 6 to 8 parts of rutile titanium dioxide, 8 to 12 parts of glass flake, 3 to 6 parts of mica powder, 1 to 3 parts of nano zirconium dioxide, 2 to 3 parts of nano silicon dioxide, 1 to 3 parts of modified boron nitride nano powder, 5 to 8 parts of styrene, 1 to 2 parts of methyl ethyl ketone peroxide and 1 to 2 parts of functional additive, according to the anti-carbonization coating provided by the invention, the sheet structures of the used glass flakes and boron nitride are synergistic, a permeation path is prolonged, the glass flakes and the boron nitride are jointly dispersed in resin, stress is absorbed through interlayer slippage, and crack propagation of a coating is reduced; under the combined action of gamma-aminopropyltriethoxysilane and octadecyltrimethoxysilane, dual functional modification is given to the boron nitride nanosheets, covalent bonds or hydrogen bonds are formed by the boron nitride nanosheets and polar groups in vinyl ester resin through chemical bonding, and the interface bonding force between filler and a matrix is enhanced.

The present invention provides fabric care compositions and related methods comprising a graft copolymer that can comprise (a) a polyalkylene oxide, such as polyethylene oxide (PEG); (b) N-vinyl pyrrolidone (VP); and (c) a vinyl ester, such as vinyl acetate. The invention also provides methods and uses associated with such compositions and / or graft copolymers.

The invention relates to the technical field of sizing agents, in particular to a modified epoxy vinyl sizing agent and a preparation method and application thereof, and the modified epoxy vinyl sizing agent comprises modified epoxy resin and water; based on the total weight of the sizing agent, the content of the modified epoxy resin is 1-1.5 wt%; the modified epoxy resin is selected from at least one of polymers with a structure as shown in a formula (1), and in the formula (1), n is an integer of 3-10. The structure of the modified epoxy vinyl sizing agent simultaneously contains a functional group capable of being cross-linked and cured with matrix resin and a functional group capable of being combined with carbon fibers, so that the interface performance of vinyl ester resin and the carbon fibers is improved, and the vinyl ester resin and the carbon fibers are tightly combined together by the sizing agent in the processing and forming process of a composite material; the composite material performance is improved.

The present invention aims to improve the bundling of inorganic fibers to which a sizing agent for inorganic fibers is attached, and to shorten the time for curing treatment when producing a fiber-reinforced resin composite. The sizing agent for inorganic fibers contains a resin (A) containing a vinyl ester resin and an ionic polyester resin, and the mass ratio of the vinyl ester resin to the ionic polyester resin is greater than 1.

This invention discloses an ethylene alcohol-vinyl acetate-medium-long alkyl carboxylic acid vinyl ester copolymer and its preparation method, belonging to the technical field of preparation of copolymers containing ethylene alcohol structural units. The copolymer has a number average molecular weight of 5,000 to 500,000 and is composed of ethylene alcohol-based structural units (a), vinyl acetate-based structural units (b), and medium-long alkyl carboxylic acid vinyl ester-based structural units (c). The preparation method provided by this invention has mild reaction conditions, simple operation, and is easy to industrialize.

The invention relates to a method for producing a particle foam molded part, comprising fusing coated foam particles by supplying energy at least in part by an electromagnetic field having a frequency in the range of 1 MHz to 100 MHz, wherein the coated foam particles comprise a polymer coating selected from the group consisting of an acrylic polymer, a styrene-acrylic polymer, a vinyl ester polymer, an ethylene vinyl ester polymer, a styrene butadiene polymer, a polyester polymer, a polyamide polymer, a polyolefin polymer, a polyurethane polymer, the invention relates to a polyurethane-polyacrylate hybrid polymer and a polyurethane-polystyrene-butadiene hybrid polymer. The invention also relates to the molded part obtained in this method and to the use thereof in soles, sole parts, midsoles, insoles, damping elements, cushioning elements, pads, grips, floors, mattresses, sporting goods, bicycle saddles, tires and in automotive interior and exterior trim parts.

Provided is a drilling mud additive that can provide a drilling mud composition that exhibits an excellent suppression of mud loss at high temperatures and an excellent fluidity and mud cake formation at high temperatures. Also provided is a drilling mud composition that uses this additive.　The present invention provides a drilling mud additive that contains a vinyl alcohol-based polymer that has a vinyl alcohol unit and a vinyl ester unit. This vinyl alcohol-based polymer has a saponification degree of at least 70 mol% and a viscosity-average degree of polymerization of 1000-5000. When a 0.1 mass% aqueous solution of the vinyl alcohol-based polymer is filtered across a membrane filter having a pore diameter of 0.45 μm, the amount of filtered water in 10 minutes is equal to or less than 100 g.

COMPOSITION AND METHOD FOR THE CARE OF KERATINOUS MATERIALS The present invention relates to a composition comprising the following components: a) at least one C-glycoside; and b) at least one film-forming agent selected from copolymers derived from the polymerization of at least one vinyl ester monomer and optionally at least one vinyl-based monomer other than vinyl ester monomers, wherein the weight ratio between component a) and component b) is greater than 1. The present invention also relates to a non-therapeutic method for the care of keratinous materials, comprising the application of said composition to the keratinous materials. Figure for the abstract: none

This invention relates to C08K3 / 013, specifically to a composite adhesive for abrasives and its preparation method. It comprises the following raw materials: by weight, 100 parts phenolic resin, 10-20 parts vinyl ester resin, 2-5 parts filler, and 5-10 parts additives. The composite adhesive provided by this invention exhibits high toughness, good impact resistance, high tensile shear strength, and excellent mechanical properties, making it particularly suitable for sandpaper preparation and effectively improving the physical properties of sandpaper.

The invention relates to the technical field of acid-resistant coatings and spraying equipment thereof, in particular to a spraying acid-resistant self-cleaning soft and hard combined coating and spraying equipment thereof, which comprises the following components in parts by weight: 20-40 parts of bisphenol A type epoxy vinyl ester resin, 20-30 parts of vinyl propyl MT silicon resin, 20-30 parts of basalt-silicon carbide scale combined system, 5-10 parts of silicon dioxide, 5-10 parts of silicon dioxide, 5-10 parts of silicon dioxide, 5-10 parts of silicon dioxide, 5-10 parts of silicon dioxide, 5-10 parts of silicon dioxide, 5-10 parts of silicon dioxide, 5-10 parts of silicon dioxide 5-20 parts of an additive; in the basalt-silicon carbide scale combined system, the thickness of the basalt scales is 2-5 microns, the sheet diameter is 100-300 microns, 25-32 parts by weight of the basalt scales with 100 meshes and 150 meshes are adopted in the combined system, the mass ratio of the gradient ratio of the basalt scales to the basalt scales with 150 meshes is 6: 4, the thickness of the silicon carbide scales is 50-100 nm, the sheet diameter is 1-3 microns, and the thickness of the silicon carbide scales is 1-3 microns. 5-10 parts by weight of glass flakes are used in a combined system, and the rest of glass flakes are used, so that the problem of thermal stress caused by temperature difference change is radically relieved, and the phenomena of cracking and delaminating of the coating are effectively avoided.

This application relates to biodegradable graft polymers comprising nitrogen-containing monomers different to vinyllactams. The graft polymers of the invention comprise a polyalkylene oxide polymer as polymer backbone of the graft polymer and grafted side chains obtained from radically polymerizing at least one vinyl ester, at least one Nitrogen-containing -monomer in amounts of at least weight percent being based on the total weight of the graft polymer, and optionally at least one vinyl lactame and / or at least one further monomer, in the presence of the polymer backbone. 10 The inventive graft polymers exhibit inter alia properties for inhibiting at least one of transfer of dyes, removal of clay, inhibiting re-soiling and anti-greying. As they also are bio-degradable, they are useful polymers for various applications including cleaning applications of all kinds. The invention further relates to the production of such graft polymers. Furthermore, the present invention relates to the use of such a graft polymer within various applications including cleaning applications of all kinds, fabric and home care products, the use of such graft polymers for inter alia for inhibiting at least one of transfer of dyes, removal of clay, inhibiting re-soiling and anti-greying. This invention also relates to compositions such as cleaning composition, fabric and home care products, dish wash compositions and laundry detergents comprising at least one of such graft polymers.

The application relates to the technical field of high-temperature-resistant pipeline production, in particular to a multi-end-feeding double-screw extrusion pipeline and a preparation method of high-temperature-resistant polyethylene glycol adipate. The pipeline comprises a corrosion-resistant layer, a pipeline layer and a heat-insulating layer; the corrosion-resistant layer is made of vinyl ester resin, the vinyl ester resin is sprayed on the inner surface of the pipeline layer; the pipeline layer is made of high-temperature-resistant polyethylene glycol adipate, the particles are softened at high temperature, and the pipeline layer is formed by extrusion through a mold; the heat-insulating layer is made of ceramic fiber felt, the outer surface of the pipeline layer is uniformly brushed with a high-temperature adhesive binder, and the ceramic fiber felt is adhered to the outer surface of the pipeline layer. Carbon nanotubes are uniformly grafted on polyethylene glycol adipate to form a uniform heat-conducting net, the high-heat-resistance of polyether ether ketone is used to improve the heat-resistance of polyethylene glycol adipate, and the heat of a locally overheated position is guided to the surroundings through the heat-conducting net, so that decomposition caused by excessively high temperature is avoided. On the basis of improving the heat-resistance of the pipeline, the ability of the pipeline to resist uneven heat is improved.

The invention relates to a light high-strength composite material container beam column component and a preparation method thereof, and relates to the field of composite materials and preparation. Preparation raw materials comprise the following components in parts by mass: 90-110 parts of modified phenolic epoxy vinyl ester resin, 120-180 parts of composite reinforced fibers, 25-35 parts of a flame-retardant filler, 3-5 parts of hydrophobic nano silicon dioxide, 1.5-2.5 parts of a curing agent, 2-3 parts of an ultraviolet light absorber and 1-2 parts of an antioxidant. The composite reinforced fibers comprise glass fibers and carbon fibers; the flame-retardant filler comprises aluminum hydroxide and magnesium hydroxide. The preparation method comprises the following steps: preparing a premix; composite reinforced fibers are laid in a mold, the composite reinforced fibers are soaked in the premix, demolding is performed after heating curing, and the light high-strength composite material container beam column component is obtained. The material prepared by the invention has the characteristics of light weight and high strength, and has good weather resistance and flame retardance.

There is provided a hair styling polymer comprising: from 70% to 95% by weight, based on dry polymer, of a vinyl alkanoate monomer having from 4 to 13 carbons; from 5% to 30% by weight, based on dry polymer, of a carboxylic acid / carboxylic acid anhydride functionalized vinyl ester monomer having from 4 to 12 carbons; from 0% to 5% by weight, based on dry polymer, of a polyethylenically unsaturated crosslinker; from 0% to 20% by weight, based on dry polymer, of a further monoethylenically unsaturated monomer wherein the further monoethylenically unsaturated monomer is different from the alkanoic acid vinyl ester monomer having from 4 to 13 carbon atoms and the carboxylic acid / carboxylic acid anhydride functionalized vinyl ester monomer having from 4 to 12 carbon atoms; wherein the hair styling polymer comprises lt based on dry polymer; 15% by weight of a monoethylenically unsaturated C4-6 dicarboxylic acid monomer; and wherein the hair styling polymer comprises at least two different alkanoic acid vinyl ester monomers having from 4 to 13 carbons.

A PVA excellent in resistance to melting at high temperature is provided. The polyvinyl alcohol-based polymer is a saponificated product of a homopolymer composed of a vinyl ester monomer, a copolymer of a vinyl ester monomer and a monofunctional monomer other than the vinyl ester, a copolymer of a vinyl ester monomer and a polyfunctional monomer, or a copolymer of a vinyl ester monomer, a monofunctional monomer other than vinyl ester, and a polyfunctional monomer has a particle size of 50 nm or more at a cumulative frequency of 50% in particle size distribution by dynamic light scattering measurement of a 0.4 mass % aqueous solution of the polyvinyl alcohol-based polymer at 25° C.

The present application relates to the technical field of concrete admixtures, and particularly relates to a low-molecular-weight polycarboxylic water-reducing agent, a preparation method and application thereof, wherein the adding amount of each raw material component of the low-molecular-weight polycarboxylic water-reducing agent is 30-45% of unsaturated polyether monomer, 3-5% of unsaturated organic acid, 1-2% of initiator, 1-3% of catalytic chain transfer agent, 1-2% of reducing agent, and the rest is water, wherein the unsaturated polyether monomer comprises one or both of vinyl alcohol polyether monomer and vinyl ester polyether monomer, and the catalytic chain transfer agent is a cobalt metal complex. The present application adds CoBF as the catalytic chain transfer agent in the raw material of the polycarboxylic water-reducing agent, and selects the unsaturated polyether monomer and the unsaturated organic acid with good copolymerization effect, so that the low-molecular-weight polycarboxylic water-reducing agent prepared therefrom has good adaptability and slump retention performance, and can ensure the construction performance of the concrete and the strength of the hardened concrete.

The present invention relates to a longitudinally and transversely extending pre-impregnated fiber sheet (20a, 20b) comprising a first fiber layer (21) forming part of the upper surface of the pre-impregnated fiber sheet and a second fiber layer (22) forming part of the lower surface of the pre-impregnated fiber sheet, wherein the first fiber layer is pre-impregnated with an adhesion promoter. The present invention also relates to methods for manufacturing a blade housing element or a wind turbine blade comprising a prefabricated spar cap (100) and several pre-impregnated fiber sheets (20a, 20b) arranged to achieve improved adhesion between the blade housing (80) and the prefabricated spar cap, particularly when the prefabricated spar cap is impregnated with vinyl ester resin or epoxy resin and the blade mold is impregnated with polyester resin.

Disclosed herein is an agrochemical composition including an agrochemical active ingredient and a cleaning composition including cleaning additives, each further including at least one novel graft polymer including a polymer backbone (A) as a graft base having polymeric sidechains (B) grafted thereon. The polymeric sidechains (B) are obtained by polymerization of at least one vinyl ester monomer (B1), and optionally further monomers. The polymer backbone (A) includes polyalkylene-oxide-derived moieties and moieties derived from lactone(s) and / or hydroxy acid(s), those moieties being mixed such that the polymer backbone contains ester-functions within the polymer chains.Also disclosed herein are the graft polymer and its production.