85 results about "Acrylic monomers" patented technology

A photocurable composition is capable of forming a cured product that has good reliability in a high-temperature constant-humidity environment, especially good ion migration resistance in a temperature range of 100° C. or higher. The photocurable composition (Z) is obtained by adding an ion scavenger (Y) to a composition (X) containing a monofunctional acrylic monomer (A) and a multifunctional acrylic monomer (B), wherein the content of the monofunctional acrylic monomer (A) relative to 100 wt % of the composition (X) is from 40 wt % to 80 wt %, and the content of the multifunctional acrylic monomer (B) relative to 100 wt % of the composition (X) is from 10 wt % to 50 wt %. An inkjet ink composition contains the photocurable composition (Z); a cured product; and an electronic component.

The present invention provides a negative type optical sensitivity composition and use thereof, wherein the negative type optical sensitivity composition comprises: 50 to 60 weight percent of an alkali-soluble resin; 10 to 20 weight percent of an acrylic monomer or oligomer thereof; 3 to 8 weight percent of a photoinitiator; 0.3 to 1 weight percent of an adhesion agent, wherein the adhesion agent is a nitrogen-containing silane compound; and a balance of a solvent.

This invention discloses a vinylphosphonic acid-acrylonitrile copolymer adhesive, its preparation method, and its application. The vinylphosphonic acid-acrylonitrile copolymer adhesive comprises the following components by mass: 76%–92% acrylonitrile, 4%–12% acrylic monomers, and 4%–12% vinylphosphonic acid monomers. The vinylphosphonic acid-acrylonitrile copolymer adhesive is prepared by subjecting each monomer to a free radical polymerization reaction. By simultaneously introducing flexible acrylic segments and vinylphosphonic acid functional units into a rigid acrylonitrile skeleton, the copolymer adhesive possesses strong adhesion, flexibility, electrochemical stability under high pressure conditions, and applicability to different metal ion systems.

Provided is a light-curable composition that includes one or more monofunctional (meth)acrylate monomers with at least one monomer having a homopolymer glass transition temperature of from 0°C to 200°C; a crosslinker selected from multifunctional oligomeric (meth)acrylates, aliphatic urethane (meth)acrylates, aromatic urethane (meth)acrylates, polyester (meth)acrylates, and epoxy (meth)acrylates; one or more adhesion promoters selected from glycidyl (meth)acrylate, 2-hydroxyethyl(meth)acrylate acid phosphate, phosphonate ester-containing (meth)acrylic monomer, phosphate ester-containing (meth)acrylic monomer, silane, and (meth)acrylic acid; a photoinitiator; a flame retardant; and one or more fillers comprising hollow fillers, refractory fillers comprising kaolin, intumescent fillers, or mixtures thereof. The cured composition can function as an electrical insulator in battery assemblies, while protecting components from hot particles and gases in case of thermal runaway events.

The subject of this disclosure is to provide an electrophotographic photosensitive material and an electrophotographic image forming apparatus that provide sufficient image quality and durability even in positively charged image forming apparatuses. The electrophotographic photosensitive material is used in an image forming apparatus having positively charged units. The electrophotographic photosensitive material has a photosensitive layer and a protective layer. The protective layer is a cured film containing metal oxide particles and formed from a polymeric compound, and the volume resistivity of the protective layer is 10⁻⁶. ９ ~10 15 Within the range of Ω·cm, the above-mentioned polymeric compound is any one of acrylic monomers or methacrylic monomers or a mixture thereof, and the hydroxyl value of the above-mentioned polymeric compound is in the range of 10 to 200 mg KOH / g.

The application provides a back contact cell isolation glue composition and a back contact cell isolation glue. The back contact cell isolation glue composition comprises, in percentage by mass, 60-84% of a resin base material, 10-30% of an active diluent monomer, 0.5-2% of a filler and 2-8% of a photoinitiator; wherein the resin base material comprises silicone acrylate, acrylic monomer and polyurethane modified acrylate; the mass percentage content of amino groups in the polyurethane modified acrylate is 10-30%. The above technical scheme adjusts the proportion of the resin formula, ensures that the isolation glue keeps low yellowing and high light transmittance for a long time, and guarantees the power output and appearance stability of the photovoltaic module. The silicone acrylate makes the thermal decomposition temperature of the isolation glue reach 300-400 DEG C, meets the high-temperature edge passivation process, realizes continuous protection in the whole process of cell manufacturing, and solves the protection problem of the cell piece in the high-temperature process.

The present disclosure provides a separator for a lithium secondary battery, including a porous polymer substrate; at least one inorganic coating layer present on at least one surface of the porous polymer substrate, the inorganic coating layer including inorganic particles and a first particulate binder polymer; and at least one adhesive layer present on at least one surface of the inorganic coating layer, the adhesive layer including a second particulate binder polymer and a non-particulate binder precursor, wherein the non-particulate binder precursor includes an acrylic monomer or oligomer.

The present application relates to the technical field of lithium ion battery cathode material, in particular to a functional carbon source, a preparation method and application thereof, and a carbon-coated lithium iron phosphate main material and a preparation method thereof.The functional carbon source is polymerized from two or more of an acrylic monomer, an ammonium monomer, a phosphoric acid monomer, an aromatic hydrocarbon monomer and a nitrogen-containing heterocyclic monomer; the number average molecular weight of the functional carbon source is 5000-50000 Da.The functional carbon source is designed by multi-gradient copolymerization of the acrylic monomer, the ammonium monomer, the phosphoric acid monomer, the aromatic hydrocarbon monomer and the nitrogen-containing heterocyclic monomer, combined with the mode of monomer molar ratio regulation and main chain-branched molecular structure directional construction, to realize the improvement of the sanding solid content of the lithium iron phosphate precursor slurry and the shortening of the sanding time, and simultaneously realize the effects of high residual carbon rate of the carbon source and uniform and dense carbon coating layer, finally significantly enhance the gram capacity and rate performance of the lithium iron phosphate, and the carbon source preparation process is simple, suitable for the existing industrial production process, and easy to popularize and apply.

This invention belongs to the field of rainwater treatment technology and relates to a multifunctional bioretention tank for enhanced nitrogen and phosphorus removal. The tank comprises, from top to bottom, a water accumulation layer, a covering layer, a planting layer, a media layer, a submerged layer, and a drainage layer. The drainage layer is equipped with a drainage pipe, the outlet of which is flush with the top of the submerged layer. The submerged layer contains layered modified wood chips and iron filings. The modified wood chips are obtained by grafting functional copolymers onto the wood chips, with the amount of the functional copolymers being 6-10 wt% of the wood chips. The functional copolymers are obtained through copolymerization of pyridine-containing acrylic monomers and double-bonded acyl halide monomers at a molar ratio of 1:(0.1-0.3). This invention, through wood chip modification and improved filling structure, layers modified wood chips and iron filings in the submerged layer of the bioretention tank, thereby enhancing the nitrogen and phosphorus removal effect and significantly improving the removal efficiency of heavy metal pollutants.

To provide a copolymer composition with excellent heat resistance and a molded article thereof. [Solution] A copolymer composition comprising a modified ethylene-α-olefin copolymer (A) containing an average of 0.3 or more (meth)acryloyl groups per molecule, a (meth)acrylic monomer (B), and a photoinitiator (C).

The present invention relates to a metal coil coated with a coating obtained by crosslinking a coating composition based on a self-crosslinking resin formed by copolymerization of specific acrylic monomers. It also relates to a self-crosslinking resin formed by copolymerization of specific acrylic monomers, as well as a coating composition comprising this resin and a solvent.

The application belongs to the technical field of batteries, and specifically discloses a lithium ion secondary battery, a preparation method thereof and an electric device. The lithium ion secondary battery comprises a negative electrode sheet, and the negative electrode sheet comprises a negative electrode film layer, wherein the negative electrode film layer comprises a negative electrode active material, a multi-element polymer and carbon nanotubes, and the multi-element polymer comprises a structural unit derived from an acrylic monomer, a structural unit derived from an acrylic ester monomer, a structural unit derived from an acrylamide monomer and a structural unit derived from an acrylonitrile monomer. The design provided in the application can improve the cycle service life of the battery by reducing the expansion degree of the negative electrode sheet.

This invention provides a polyurethane microcapsule, its preparation method, and its application. The raw materials for preparing the polyurethane microcapsule, by weight, include the following components: 30-50 parts of functionalized polyether polyol, 3-10 parts of amino-containing acrylic monomer, 10-25 parts of isocyanate monomer, 3-6 parts of cationic chain extender, 2-5 parts of small molecule chain extender, 0.5-2 parts of capping agent, 1.5-5 parts of neutralizing agent, 5-15 parts of pesticide active ingredient, 0.1-0.5 parts of initiator, 10-30 parts of organic solvent, and 100-160 parts of water. The raw materials for preparing the functionalized polyether polyol include a ring-opening initiator, functional monomer, and active monomer. This invention improves the adhesion and scouring resistance of polyurethane microcapsules by introducing amino and acrylic structural units into them, resulting in high encapsulation efficiency and rinsing retention rate. Simultaneously, the dense structure of the polyurethane microcapsule achieves a simultaneous improvement in sustained-release performance and adhesion performance.

The present invention relates to the technical field of polymer synthesis and relates to a preparation method for an oil-proofing agent based on polymerization of acrylic acid and organosilicon. In the present invention, the method comprises: adding methyl acrylate, hydroxyethyl acrylate, dithiothreitol, m-trifluoromethylcinnamaldehyde, and triethylamine to a reaction kettle, and stirring and heating the mixture for a reaction; adding an initiator, and continuing the reaction, so that the acrylic monomers undergo a polymerization reaction to form a polymer having good stability and mobility; further adding α,ω-dihydroxypolydimethylsiloxane and continuing the reaction, so that the linear organosilicon and the polymer undergo a polymerization reaction; adding an emulsifier, and stirring and mixing the mixture for a reaction to obtain an oil-proofing agent; and adding the oil-proofing agent to a pulp for food boxes and uniformly stirring the mixture, so that the polymer is uniformly distributed on the surface of the pulp for food boxes to form a dense oil-proofing film, thereby effectively preventing the adhesion of oil stains. The oil-proofing agent prepared in the present invention has good oil-proofing performance, and can effectively prevent the adhesion of oil stains, thereby maintaining the cleanliness of food packaging and catering utensils.

Microspheres, compositions including the microspheres, and methods of using the microspheres are disclosed herein. The microspheres can be substantially spherical and can include a copolymer of a monomer (such as an acrylic monomer) and a cyclodextrin or a derivative thereof. The microspheres can also include a therapeutic agent, such as a platinum-based drug.

The present disclosure provides a separator for a lithium secondary battery, including a porous polymer substrate; and an inorganic coating layer present on at least one surface of the porous polymer substrate, the inorganic coating layer including core-shell composite particle precursors, wherein the core-shell composite particle precursors include a core portion and a shell portion covering at least a part of a surface of the core portion, wherein the core portion includes inorganic particles, and wherein the shell portion includes an acrylic monomer or oligomer.

This application provides a modified photocurable oligomer, its preparation method, and a photocurable 3D printing resin. The preparation method of the modified photocurable oligomer includes the following steps: providing an acrylic monomer, a triblock thermoplastic elastomer, a coupling agent, and a polyurethane acrylate; dissolving the triblock thermoplastic elastomer in the acrylic monomer to obtain a block copolymer mixed solution; adding the coupling agent to the block copolymer mixed solution to obtain a modified block copolymer mixed solution; adding the polyurethane acrylate to the modified block copolymer mixed solution, and mixing to obtain the modified photocurable oligomer. The modified photocurable oligomer, its preparation method, and the photocurable 3D printing resin provided in this application use a triblock thermoplastic elastomer as a toughening reinforcing phase, and chemically modify its surface using a coupling agent, enabling it to form a strong chemical bond interface with the polyurethane acrylate after pre-dispersion in the acrylic monomer.

The present disclosure relates to a separator for an electrochemical device, the separator having a coating layer including a non-crosslinked copolymer as a binder, the copolymer including i) a repeating unit derived from an acrylic monomer having a hydroxyl group, ii) a repeating unit derived from a (meth)acrylic monomer, a (meth)acrylic salt monomer, or both, and iii) a repeating unit derived from an acrylic monomer having an amide group. Since the non-crosslinked copolymer includes i) a repeating unit derived from an acrylic monomer having a hydroxyl group and ii) a repeating unit derived from a (meth)acrylic monomer, a (meth)acrylic salt monomer, or both, in a molar ratio ranging from 1:0.1 to 1:1, the separator exhibits improved thermal shrinkage not only in a dry state but also in a wet state.

The application discloses a kind of porous ion gel / collagen fiber-based sensing materials and its preparation method and application, it is related to flexible sensing technical field.The preparation method includes that polyvinyl alcohol is added to deionized water, heating stirring obtains polyvinyl alcohol solution;Cellulose nanofiber, acrylic monomer, benzene boric acid ionic liquid, porogen, initiator and crosslinking agent are added to polyvinyl alcohol solution, and mixed to obtain prepolymer liquid;With collagen fiber as skeleton, it is filled with prepolymer liquid in its inside by vacuum impregnation and obtained collagen fiber containing prepolymer liquid;Collagen fiber containing prepolymer liquid is sequentially subjected to biological foaming, in-situ polymerization under ultraviolet light initiation and freeze-thaw cycle treatment, and the porous ion gel / collagen fiber-based sensing material is obtained.The sensing material prepared by the method realizes the synergistic improvement of air permeability, conductivity, mechanical property and sensing sensitivity, so that the material has good application prospect in the field of flexible wearable sensing.

This invention relates to the field of polymer materials technology, specifically to a high-temperature and humid heat-resistant water-based ink, its preparation method, and its application. The steps are as follows: S1, polybenzimidazole (PBI) powder is cryogenically ground to obtain nano-sized PBI powder; S2, deionized water, emulsifier, coupling agent, initiator, and defoamer are mixed and dispersed with the nano-sized PBI powder to prepare a PBI pre-dispersion; S3, deionized water, emulsifier, at least one of acrylic monomers and acrylate monomers, a functional amine, and a pH buffer are mixed to prepare a seed emulsion; S4, the PBI pre-dispersion is added dropwise to the seed emulsion, and in-situ polymerization is carried out in an emulsion polymerization apparatus to obtain a PBI-functional amine hybrid emulsion; S5, the PBI-functional amine hybrid emulsion is mixed and dispersed evenly with a defoamer, leveling agent, anti-abrasion agent, and water-based colorant to obtain a high-temperature and humid heat-resistant water-based ink. This invention improves the water resistance, heat resistance, and adhesion performance of the ink film under conditions of boiling, high-temperature sterilization, and high-temperature and humid heat.

This invention provides a water-based self-cleaning superhydrophobic coating, its preparation method, and its application. The water-based self-cleaning superhydrophobic coating comprises the following components in parts by weight: 0.1-0.2 parts acrylic monomers, 5-15 parts acrylate monomers, 6-12 parts acryloyloxysilane coupling agent, 14-26 parts F-SiO2 particles, 0.1-5 parts additives, and 54-68 parts solvent; wherein the F-SiO2 particles are SiO2 modified with a fluorosilane coupling agent. The coating of this invention exhibits excellent superhydrophobic, oleophobic, chemically resistant, and self-cleaning properties. The static contact angle of the coating with water reaches over 165°, demonstrating outstanding superhydrophobic and self-cleaning properties, superior to most commercially available hydrophobic and oleophobic acrylic resins. Furthermore, this invention also offers advantages such as zero VOC emissions, non-flammability, safer transportation and storage, shorter drying time, and lower environmental requirements.

The primer composition comprises a polyacrylate dissolved in an organic solvent. The polyacrylate comprises at least 20% by weight of methyl methacrylate units, at least 15% by weight of monomer units comprising at least one of secondary amines, tertiary amines, or tertiary amides, at least 15% by weight of acrylic monomer units comprising an alkyl group having at least 4 carbon atoms, and 0.5 to 10% by weight of acrylic monomer units comprising a carboxylic acid group. The adhesive system comprises the primer composition and an adhesive tape. A method for producing the bonded article is also described.

This invention discloses a versatile and breathable water-based coating for medical tape, comprising acrylate monomers, an emulsifier, an initiator, and a silicone resin. The emulsifier is 0.1-1% anionic or a combination of anionic and no more than 0.5% nonionic emulsifiers. The initiator is 0.05-0.8% a water-soluble oxidant, or a combination of a water-soluble oxidant and 0.01-0.5% a reducing agent. The acrylate monomer comprises 30-65% soft monomers, 30-65% hard monomers, and 1-5% functional monomers. The coating of this invention combines release properties, writeability, breathability, and skin comfort, thus eliminating the need for an additional silicone release layer. In the synthesis process, a water-based acrylate emulsion is first prepared, then a solvent-free silicone release agent is added, causing the acrylate layer to encapsulate the liquid silicone release agent. The reaction is then heated to form an interpenetrating network structure with the acrylate layer. After the reaction, the temperature is lowered to form the finished product.

Disclosed is a composition for forming a coating layer of a separator for an electrochemical device, the composition comprising a polymer binder and inorganic particles, wherein the polymer binder includes a copolymer including i) a (meth)acrylic acid monomer, a (meth)acrylic acid salt monomer, or a repeating unit derived from these two monomers, and ii) a repeating unit derived from an acrylic monomer having an amide group, the copolymer has a weight average molecular weight of 10,000 to 500,000, the inorganic particles include an aluminum hydroxide oxide, and the inorganic particles have an average particle diameter D50 of 0.33 to 1.5 μm.

The application belongs to the technical field of oil field chemistry, and particularly relates to a tertiary oil recovery oil displacement agent composition containing a polyacrylate agent, a preparation method and application thereof. The oil displacement agent composition comprises the following raw materials: 0.4-0.7 parts by mass of a polyacrylate agent containing an acrylic copolymer, 0.1-0.2 parts by mass of an alkyl glycoside, 0.05-0.1 parts by mass of a fatty alcohol polyoxyethylene ether, 0.03-0.05 parts by mass of nano silicon dioxide, and water is supplemented to 100 parts by mass; the polyacrylate agent containing an acrylic copolymer is obtained by copolymerization of the following monomers: an acrylic monomer, an amphiphilic macromonomer, acrylamide, acrylic acid phosphate ester and a crosslinking agent; the amphiphilic macromonomer contains a polyester segment, a quaternary ammonium salt cation and a sulfonate anion. The oil displacement agent of the application further improves the recovery rate on the basis of water flooding, and the total recovery rate can reach more than 70%.

The present invention provides a battery material composition capable of improving the output characteristics of a secondary battery, a polymer layer for a secondary battery, a separator for a secondary battery, an electrode for a secondary battery, and a secondary battery. [Solution] A battery material composition comprising (i) a fluorine-containing polymer (A) containing polymerization units based on vinylidene fluoride and polymerization units based on tetrafluoroethylene and an acrylic polymer (B), or (ii) a copolymer (C) containing polymerization units based on vinylidene fluoride, polymerization units based on tetrafluoroethylene and polymerization units based on acrylic monomer, or (iii) a copolymer (D) containing polymerization units based on vinylidene fluoride, polymerization units based on tetrafluoroethylene and polymerization units based on chlorotrifluoroethylene.

The primer composition comprises a polyacrylate dissolved or dispersed in water. The polyacrylate comprises at least 20% by weight of methyl methacrylate units, at least 15% by weight of monomer units comprising at least one of secondary amines, tertiary amines, or tertiary amides, at least 15% by weight of acrylic monomer units comprising an alkyl group having at least four carbon atoms, and 2.5% to 10% by weight of acrylic monomer units comprising a carboxylic acid group. The primer composition comprises a polymer dispersed in water and a solvent, wherein water accounts for 50% by weight or more of the primer composition, and the solvent comprises at least one of propylene carbonate, polyol, polyol ether, polyol ether ester, or dibasic acid ester. The adhesive system comprises the primer composition and an adhesive tape. Furthermore, a method for producing the bonded article is also described.

The application relates to the technical field of concrete, and discloses a polymer cement-based composite material and a preparation method and application thereof. According to mass parts, the polymer cement-based composite material comprises the following preparation raw materials: cementitious material 80-120 parts, aggregate 160-240 parts, polymer monomer 1-5 parts, initiator 0.04-0.07 parts, crosslinking agent 0.01-0.03 parts and mixing water 35-55 parts; the polymer monomer is a combination of a sulfonic acid-based vinyl monomer and an acrylic monomer. In-situ copolymerization is carried out by introducing the sulfonic acid-based vinyl monomer and the acrylic monomer, the synergistic effect of sulfonic acid groups and cement hydration products is utilized, the negative influence of pure acrylic monomers on early hydration is significantly relieved, when the sulfonic acid-based vinyl monomer accounts for 30% of the total amount of polymer monomers, the 3-day flexural strength of the material is about 7.5 times that of a pure acrylic monomer system, the 28-day flexural strength is higher than that of the pure acrylic monomer system, and the compressive strength is equivalent, and the defects of traditional modified products, such as toughness increase and strength decrease or early loss, are overcome.

The objective is to provide an active energy ray curable overprint varnish that offers excellent misting properties and can provide a coating layer with higher gloss. [Solution] The reaction components include at least an acid-modified rosin, a monobasic acid having a cyclic structure, and a polyol having three or more hydroxyl groups in one molecule, and a polyester with an acid value of more than 10 mg KOH / g, A photopolymerization initiator, a (meth)acrylic monomer, An active energy ray curing overprint varnish and printed material characterized by containing 3 to 15% by mass of at least one extender pigment selected from the group consisting of calcium carbonate, silica, and magnesium carbonate, relative to the non-volatile components of the varnish.

This invention relates to the field of waterborne adhesives, specifically to a waterborne anti-corrosion and environmentally friendly adhesive and its preparation method. The adhesive comprises soft acrylic monomers, hard acrylic monomers, functional monomers, silane-imidazolium-pyrogallol acrylate monomers, emulsifiers, initiators, pH buffers, deionized water, etc. The silane-imidazolium-pyrogallol acrylate monomers are composed of trimethylolpropane, pentaerythritol glycidyl ether, gallic acid, imidazolium-4,5-dicarboxylic acid, 3-aminopropyltriethoxysilane, etc. Gallic acid provides the pyrogallol anti-corrosion group, imidazolium provides the stabilizing corrosion-inhibiting group, silane provides the synergistic effect of adhesion enhancement and corrosion prevention, and the acrylate double bonds achieve copolymerization. The adhesive prepared by this invention exhibits excellent adhesion, tensile shear strength, salt water resistance, salt spray resistance, and emulsion stability. It is also environmentally friendly and free of heavy metals, making it suitable for bonding and protecting metal substrates.