391 results about "Vinyl ester" patented technology

A golf club head with a central body component is disclosed herein. The central body component includes a crown portion and a sole portion. The crown portion is composed of a continuous carbon fiber reinforced epoxy material. The sole portion is composed of a chopped carbon fiber reinforced vinyl ester sheet molding compound material. The central body component has a front opening and a rear opening with a hollow interior.

A golf club head with a central body component is disclosed herein. The central body component includes a crown portion and a sole portion. The crown portion is composed of a continuous carbon fiber reinforced epoxy material. The sole portion is composed of a chopped carbon fiber reinforced vinyl ester sheet molding compound material. The central body component has a front opening and a rear opening with a hollow interior.

A golf club head with a central body component is disclosed herein. The central body component includes a crown portion and a sole portion. The crown portion is composed of a continuous carbon fiber reinforced epoxy material. The sole portion is composed of a chopped carbon fiber reinforced vinyl ester sheet molding compound material. The central body component has a front opening and a rear opening with a hollow interior.

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 an ethylene-vinyl alcohol copolymer and a preparation method thereof, and relates to the technical field of resin. According to the technical scheme, the preparation method comprises the following steps: adding ethylene, low-carbon alkane, alkyl acid ethyl ester, alkyl acid vinyl ester and a carbon-carbon skeleton initiator into a reaction kettle, and carrying out a free radical polymerization reaction; adding a polymerization inhibitor to terminate the reaction, removing low-carbon alkane, unreacted ethylene and alkyl acid vinyl ester, and preparing the reaction liquid into an alcoholic solution; adding a catalyst into the alcohol solution for saponification reaction, and then performing acid pickling, water washing and drying to obtain the ethylene-vinyl alcohol copolymer. The low-carbon alkane which is low in boiling point, easy to vaporize and high in latent heat of vaporization and the saturated alkyl acid ethyl ester with good solubility are adopted as the mixed solvent to replace a traditional alcohol solvent, so that removal and control of reaction heat are facilitated, generation of insoluble gel is reduced, a copolymer with narrow molecular weight distribution is easy to obtain, and the method is suitable for industrial production. The cost that azeotrope formed by the alcohol solvent and the monomer is difficult to separate and recover is greatly reduced, and the production efficiency is improved.

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 relates to the technical field of photovoltaics, in particular to an anti-migration ultraviolet cut-off photovoltaic adhesive film and application thereof. The anti-migration ultraviolet cut-off photovoltaic adhesive film comprises matrix resin and an ultraviolet cut-off agent, the ultraviolet cut-off agent is a benzotriazole compound with a reactive double bond, and the reactive double bond is selected from one of an olefinic bond, an acrylate bond, a methacrylate bond or a vinyl ester bond; and the absorption wave band of the ultraviolet cut-off agent is 280 to 380 nm. Therefore, the anti-migration ultraviolet cut-off photovoltaic adhesive film has a good cut-off effect and an anti-migration effect and is not prone to yellowing, and a battery assembly adopting the photovoltaic adhesive film has a longer service life.

A sheet molding compound (SMC) composition formulation including a curable resin, such as unsaturated polyester of vinyl ester, in an ethylenically unsaturated monomer; a low profile additive, in a curable solvent; and an intumescent additive, such as melamine polyphosphate or ethylene diamine phosphate. An article formed of the SMC composition formulation experiences no more than a 100% increase in thickness as compared to an initial thickness of the article after exposure to a flame. The low profile additive is present in the composition and the intumescent additive is present in the composition. The resulting article has a char strength at 3 mm thickness of between 100 and 1,000 Newtons.

The invention relates to the technical field of protective films, in particular to a high-light-transmittance label protective film and a preparation method thereof.A multi-layer protective film formed by compounding a release film layer, an adhesive layer, a PET film and a protective layer is constructed; composite vinyl ester resin constructed by taking epoxy resin and acrylic acid as raw materials is subjected to toughening modification, and then a linear reactive diluent is compounded to construct a high-toughness protective layer which is resistant to high temperature and aging and can be photo-cured; long-chain alkane modified nano silicon dioxide is introduced into the protective coating, nano silicon dioxide is aminated by 3-aminopropyltriethoxysilane, and then 17-carbon monoisocyanate prepared by taking acetone, stearic acid, triphenylphosphine, sodium azide and N-chlorosuccinimide as raw materials is grafted to form the long-chain alkane modified nano silicon dioxide. Vinyl butadiene styrene rubber, composite vinyl ester resin, tackifying resin, a softening agent and a photoinitiator are mixed to prepare the adhesive layer.

The present invention relates to an agrochemical composition comprising an agrochemical active ingredient and a cleaning composition comprising a cleaning additive, each further comprising at least one novel graft polymer comprising a polymer main chain (A) as a graft matrix having grafted polymer side chains (B) thereon. The polymer side chain (B) is obtainable by polymerization of at least one vinyl ester monomer (B1) and optionally a further monomer. The polymer backbone (A) comprises a polyalkylene oxide-derived moiety and a moiety derived from a lactone and / or a hydroxy acid, which moieties are mixed such that the polymer backbone contains ester functional groups within the polymer chain. The graft polymers of the compositions of the invention have been found to be suitable as dispersants for pesticidal agents in agrochemical compositions, and also suitable in cleaning compositions for improving cleaning properties. In addition, the graft polymer typically exhibits a suitably high degree of biodegradability and thus allows for a more environmentally friendly formulation. The graft polymer itself and its production are also claimed.

The invention discloses a waterproof hot melt adhesive film for a TPO waterproof coiled material, a preparation method of the waterproof hot melt adhesive film and the TPO waterproof coiled material, and relates to the field of adhesive films for waterproof coiled materials. The waterproof hot melt adhesive film for the TPO waterproof coiled material comprises the following components in parts by weight: 100 parts of a base material, 0.2-1.0 part of an antioxidant and 0.2-1.0 part of an ultraviolet absorbent, the base material is prepared from 5-10 wt% of resin with an active unsaturated functional group, 25-50 wt% of rubber, 30-50 wt% of tackifying resin and 10-20 wt% of a softening agent, the resin with the active unsaturated functional group adopts at least one of aliphatic polyurethane acrylate with the functionality of 2-3 and vinyl ester resin, and the rubber comprises at least one of SIS (styrene-isoprene-styrene) rubber and SBS (styrene-butadiene-styrene) rubber. The waterproof hot melt adhesive film has heat aging resistance, ultraviolet aging resistance, flexibility and bonding stability, and the service life of the TPO waterproof coiled material is prolonged.

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 present invention belongs to the technical field of polymer materials, and in particular to a kind of organic fluorine-modified epoxy vinyl ester resin and its preparation method and application. The organic fluorine-modified epoxy vinyl ester resin of the present invention comprises, by weight, 30-50 parts of epoxy resin, 0.03-0.5 parts of organic fluorine polymer modifier, 9-20 parts of unsaturated carboxylic acid, 0.01-0.1 parts of inhibitor, 0.1-1 parts of first catalyst, and 15-40 parts of active diluent. Its preparation method comprises the following steps: reacting the organic fluorine polymer modifier with epoxy resin at 60-90°C for 1-4h, adding unsaturated carboxylic acid, catalyst and inhibitor, heating to 90-120°C for 2-5h, until the acid value is less than 30mg KOH / g, then cooling to 60-80°C, adding active diluent and mixing evenly, and obtaining. The cured film obtained by the organic fluorine-modified epoxy vinyl ester resin of the present invention has excellent mechanical properties, chemical resistance and anticorrosive properties.

The invention discloses a flame-retardant SMC (Sheet Molding Compound) material for a new energy storage box and a preparation method of the flame-retardant SMC material, and relates to the field of composite material preparation. The flame-retardant SMC material for the new energy storage box is prepared from the following components in parts by weight: 20-24 parts of epoxy vinyl ester resin, 14-20 parts of unsaturated polyester resin, 5-10 parts of benzoxazine resin, 12-18 parts of a phosphorus-nitrogen synergist, 5-8 parts of an inorganic flame retardant, 5-8 parts of a reinforcing agent and 1-3 parts of other auxiliaries. The phosphorus-nitrogen synergist comprises vinyl modified DOPO (9, 10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide) and amino modified DOPO, the inorganic flame retardant is prepared from expanded graphite and aluminum hydroxide, and the reinforcing agent is prepared from alkali-free glass fibers and nano magnesium hydroxide. The SMC material prepared by the invention is suitable for being safely used in various environments, and has high flame retardance and excellent mechanical properties.

This application relates to biodegradable graft polymers for use as dye transfer inhibitors especially in laundry applications.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 vinylimidazole-monomer or derivative thereof in amounts of more than 10 weight percent being based on the total weight of the graft polymer, and optionally at least one vinyl lactame in the presence of the polymer backbone.The inventive graft polymers exhibit dye transfer inhibition properties; as they also are bio-degradable, they are useful polymers for laundry cleaning applications to prevent dye transfer.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 fabric and home care products, and the use of such graft polymers for inhibiting the dye transfer in laundry applications.This invention also relates to fabric and home care products as such containing such a graft polymer.

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 provides an electrode binder and a preparation method and application thereof.The electrode binder comprises a water-soluble high-molecular polymer and a solvent, the water-soluble high-molecular polymer is obtained after monomers are subjected to a polymerization reaction and an alcoholysis reaction, and the monomers comprise a first monomer, a second monomer and a third monomer; the first monomer comprises a vinyl ester monomer, the second monomer comprises a short-chain alkyl acrylate monomer of which the carbon atom number is less than or equal to 10, and the third monomer comprises a cyclic acrylate monomer; by selecting the three specific monomers for matching, the side chain of the obtained water-soluble high-molecular polymer contains an annular structure and rich hydroxyl and carboxyl, so that the electrode adhesive has good dispersing performance and adhesive performance on an electrode active material, and is relatively high in flexibility and temperature stability; meanwhile, the electrolyte swelling resistance is good, and the material is suitable for an electrode material of a lithium ion battery.

A composition having at least one composition for washing and / or care of fabrics, and at least one solid microcapsule having a mean diameter between 1 μm and 30 μm, with a core consisting of a composition C1 comprising at least one perfuming agent, and a solid crosslinked-polymer envelope totally encapsulating the core at its circumference, wherein the solid envelope comprises a crosslinked polymer obtained by polymerizing at least one monomer or polymer having at least one reactive moiety selected from the group consisting of acrylate, methacrylate, vinyl ether, N-vinyl ether, vinyl ester, thiolene, maleate, epoxy, siloxane, amine, lactone, phosphate, and carboxylate moieties, and wherein the thickness of the solid envelope is between 0.1 μm and 20 μm.

The invention provides a corrosion-resistant glass reinforced plastic pipe and a preparation process thereof, and belongs to the field of glass reinforced plastic. The high-temperature-resistant composite material is prepared from the following raw materials: boron phenolic resin, epoxy vinyl ester resin, a high-temperature-resistant additive, modified montmorillonite, a fluxing agent, garnet micro powder, a flame retardant, mica powder, glass fibers, PBO fibers, ethylenediamine and absolute ethyl alcohol. The preparation method comprises the following steps: dissolving zirconium oxychloride octahydrate in absolute ethyl alcohol, adding acetylacetone, carrying out chelation reaction on ketone groups and zirconium ions to form a stable hexa-coordinated complex, inhibiting hydrolysis, adding diphenyldimethoxysilane and 3-(triethoxysilyl) propyl methacrylate, and carrying out a reaction, so as to obtain the high-temperature-resistant anti-ultraviolet coating. After the Si-O-Zr bond-containing high-temperature-resistant additive is added into boron phenolic resin and the glass reinforced plastic pipe is prepared, escape of a resin thermal decomposition product can be effectively inhibited, and the high-temperature resistance of the glass reinforced plastic pipe is further 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 invention discloses high-flame-retardant vinyl ester resin and a preparation method thereof, and relates to the technical field of resin flame retardants, the high-flame-retardant vinyl ester resin comprises matrix resin, a release type flame retardant and an additive type flame retardant; the release type flame retardant comprises a phosphorus-containing polymer and a nitrogen-containing polymer; the additive flame retardant comprises a silicon-containing polymer; on the basis of a traditional polyester resin carrier formula, nitrogen, phosphorus and other bromine-free release type flame retardants are adopted and matched with a high-temperature cured additive type flame retardant to form crosslinking work during flame retardance, so that the flame retardant has the material strength after curing and does not generate uneliminated harmful substances.

The application discloses a production method of wood material surface metallic paint and belongs to the technical field of wood paint. The production method of the wood material surface metallic paint is characterized in that the scale-shaped metallic powder pigment is arranged in a multi-layer ordered superposition mode, a barrier layer is provided for corrosive medium, shrinkage residual stress is improved to avoid corrosion, the strength of the paint film is improved, the hardness of the paint film is high after solidification, the paint film is resistant to scratching, the vinyl ester resin and the polyurethane powder are mixed to improve the toughness of the paint film, the metallic powder is uniformly dispersed through the polyurethane powder, the defects caused by uneven dispersion such as color difference and local corrosion are reduced, the wood material can be applied to various wood materials such as solid wood, shaving board and fiber board, and the wood material can exhibit a luxurious and gorgeous visual effect, in addition, the wood material has excellent physical and mechanical properties, chemical resistance and weather resistance and the like, and is suitable for the surface treatment of various wood, shaving board and fiber board and can enhance the gloss, brightness and depth of the wood.

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.

This disclosure relates to a process for producing a recyclable ethylene-vinyl ester polymer, specifically, a recyclable ethylene-vinyl acetate (EVA) copolymer, comprising reacting an EVA polymer having an irreversibly crosslinked structure with sorbitol, via a transesterification reaction, in the presence of a transesterification catalyst, to produce a recyclable ethylene-vinyl acetate vitrimer. The present disclosure also relates to a recyclable ethylene-vinyl acetate vitrimer prepared according to this process.

The present invention relates to novel graft polymers comprising a polymer main chain (A) as a graft matrix having grafted polymer side chains (B) thereon. The polymer side chains (B) are obtainable by polymerization of at least one vinyl ester monomer (B1), optionally at least one nitrogen-containing monomer (B2), optionally a further monomer (B3). The polymer backbone (A) comprises a polyalkylene oxide-derived moiety and a moiety derived from a lactone and / or a hydroxy acid, which moieties are mixed such that the polymer backbone contains ester functional groups within the polymer chain. The invention further relates to a method for obtaining such a graft polymer, preferably by free-radical polymerization. The invention also relates to the use of such graft polymers, for example in fabrics and home care products. Also claimed are compositions and products containing such graft polymers, such as fabrics and home care products.

The invention discloses octyl vanillate as well as a preparation method and application thereof, and relates to the field of insulating oil additives. According to the invention, vanillic acid and n-caprylic alcohol are subjected to esterification reaction under the action of the bio-enzyme catalyst to synthesize octyl vanillate, and the synthesis method is efficient, green, environment-friendly and low in cost. The prepared octyl vanillate is added into the synthetic ester insulating oil as an antioxidant active component, a long ester chain in the octyl vanillate has high thermal stability, the oxidation of the synthetic ester insulating oil can still be effectively inhibited at high temperature, and the compatibility between the octyl vanillate and the synthetic ester insulating oil is good. Therefore, compared with traditional antioxidants, the synthetic ester insulating oil has remarkable advantages in the aspect of maintaining excellent oxidation resistance and electrical performance of the synthetic ester insulating oil.

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.

Provided are: a melamine-free photosensitive thermosetting developable two-component resin composition which has a cured product that has excellent acid resistance, metal plating resistance, high-temperature storage properties, and discoloration resistance, reduces the volatilization of harmful substances during a soldering stage, and has excellent drying management amplitude; a dry film thereof; a cured product thereof; and a printed circuit board formed using the same. The present invention relates to a melamine-free photosensitive thermosetting developable two-component resin composition comprising (A) a carboxyl group-containing vinyl ester resin, (B) a photopolymerization initiator, (C) a melamine phthalate, and (D) an epoxy resin, the (A) carboxyl group-containing vinyl ester resin and the (B) photopolymerization initiator being contained in a first component, the (A) carboxyl group-containing vinyl ester resin being contained in a second component, the (B) photopolymerization initiator being contained in a third component, and the (D) epoxy resin being contained in a fourth component. The epoxy resin (D) is contained in a second component different from the first component, and the amount of the melamine phthalate (C) is 1.2-11.8 parts by weight per 100 parts by weight of the carboxyl group-containing vinyl ester resin (A) in terms of solid content.