14 results about "Allyl methacrylate" patented technology

The invention discloses a positive pole piece and a preparation method thereof, a diaphragm-free battery and a battery. The positive pole piece comprises a positive pole current collector and a positive pole active material layer arranged on at least one side of the positive pole current collector, the positive pole active material layer comprises a polymer, and the polymer is formed by polymerizing at least one of small molecules of the following raw material components: vinylethylene carbonate, vinylene carbonate, 2, 3, 4-trimethyl-1, 3-pentanedione, 2, 3, 4-trimethyl-1, 3-pentanedione and 2, 3, 4-trimethyl-1, 3-pentanedione. The adhesive is prepared from 2, 4-hexadienoic acid, allyl trifluoroacetate, diethyl allylmalonate, allyl methacrylate, allyl chloroformate, allyl phenylacetate, allyl acetate, allyl 4-hydroxybenzoate and allyl phenoxyacetate. The adhesive is prepared from the following raw materials: 1, 4-hexadienoic acid, allyl trifluoroacetate, diethyl allylmalonate, allyl methacrylate, allyl chloroformate, allyl phenylacetate, allyl acetate, allyl 4-hydroxybenzoate and allyl phenoxyacetate. The positive pole piece provided by the invention comprises the polymer, so that the interface impedance can be reduced, and the rate capability of the battery can be improved.

The invention relates to a self-adaption-based thermally induced solid dimming material as well as a preparation method and application thereof. The dimming material is prepared from the following components in percentage by weight: 75 to 85 percent of octadecyl acrylate and 0 to 7 percent of allyl methacrylate. The thermotropic solid dimming material is used for preparing a self-adaptive thermochromic PVB (Polyvinyl Butyral) film. According to the invention, the powder material is embedded into the transparent resin, so that the temperature-sensitive characteristic of the film is enhanced, and the octadecyl acrylate monomer is used in emulsion polymerization, so that a thermotropic solid-state dimming material capable of changing color in a thermal response manner can be generated. A certain content of octadecyl acrylate in polymer synthesis enables the thermotropic solid dimming material to change color at the highest temperature of 40.2 DEG C, and the visible light transmittance exceeds 90%. In addition, by changing the content of allyl methacrylate, the discoloration temperature of the film can be finely adjusted in the range of 24.5 DEG C to 39.5 DEG C.

The invention relates to the technical field of cosmetics, and discloses flawless moisturizing and makeup fixing spray which is prepared from aloe barbadensis leaf juice, polyhydric alcohol, polyvinylpyrrolidone, acrylic ester / allyl methacrylate copolymer AMP salt, pullulan, an emulsifier, a preservative, deionized water and the like. By constructing a ternary synergistic film forming system of polyvinylpyrrolidone, the AMP salt copolymer and the pullulan, the steric hindrance effect of the pullulan is utilized to reduce the film forming internal stress and eliminate the skin tension, and the AMP salt copolymer is matched to improve the hydrophobicity of a film layer. According to the preparation method, a specific step-by-step variable-temperature dissolution process is adopted, polysaccharide is dissolved preferentially under a warm condition, then PVP is dispersed at a high speed, AMP salt is introduced after cooling, and polymer agglomeration is effectively avoided. The make-up fixing spray has high make-up holding power, excellent water resistance and low tightening feeling, the physicochemical property of the system is stable, and heat and cold resistance tests show that the make-up fixing spray is not layered and separated out.

The invention belongs to the technical field of coatings, and discloses a multipurpose varnish emulsion with excellent water whitening resistance, high hardness and brightness as well as a preparation method and application of the multipurpose varnish emulsion. The invention relates to a water-based adhesive which is prepared from the following components in percentage by mass: 8 to 12 percent of butyl acrylate, 30 to 35 percent of methyl methacrylate, 0.5 to 1.5 percent of diacetone acrylamide, 0.25 to 0.75 percent of adipic dihydrazide, 0.5 to 1 percent of allyl methacrylate, 0.5 to 1.5 percent of polyfunctional group crosslinking monomer, 0.5 to 1 percent of organic silicon crosslinking monomer, 0.2 to 0.5 percent of reactive emulsifier, 0.2 to 0.5 percent of persulfate and 50 to 55 percent of water. The cross-linking monomers, the emulsifier and the persulfate have specific selectable types. The preparation method comprises the steps of raw material preparation, pre-emulsification, seed emulsion preparation, polymerization reaction, heat preservation and curing, post-treatment and filtration, and the stirring speed, the reaction temperature and the dropwise adding time need to be accurately controlled. The emulsion is excellent in water whitening resistance and high in hardness, has a light effect, and is suitable for multiple scenes and high in practicability.

The invention provides a preparation method of 3-methacryloyloxy propyl dimethyl chlorosilane, and relates to the field of organic chemical industry, and the preparation method comprises the following steps: step S0, carrying out a process of determining the target adding speed of dimethyl chlorosilane and a mixed solution corresponding to a current batch of raw materials; the preparation method comprises the following steps: S1, mixing a catalyst, a polymerization inhibitor and allyl methacrylate according to the raw material ratio of 3-methacryloxypropyldimethylchlorosilane to form a mixed solution; s2, according to the raw material ratio of the 3-methacryloxypropyldimethylchlorosilane, determining the target adding speed of the dimethylchlorosilane and the mixed solution, and adding the dimethylchlorosilane and the mixed solution into the reaction device according to the target adding speed for reaction; reacting in the reaction device according to the target reaction temperature, the target reaction pressure and the target reaction time; and step S3, carrying out reduced pressure distillation on the reaction liquid obtained after the reaction in the step S2 to obtain the 3-methacryloxy propyl dimethyl chlorosilane. The method can adapt to the differences of different batches of raw materials in the aspects of purity and the like.

This invention provides a self-healing silicon-based lithium-ion battery anode material, its preparation method, and its application. The self-healing silicon-based lithium-ion battery anode material comprises a nano-silicon particle core and a self-healing cross-linked polymer coating the surface of the nano-silicon particle core. The self-healing cross-linked polymer is obtained by cross-linking a linear polymer with a thiol compound via a thiol-Michael addition reaction. The linear polymer is obtained by free radical copolymerization of acrylonitrile and allyl methacrylate. This invention uses the self-healing cross-linked polymer as a coating layer, utilizing its flexibility and self-healing ability to effectively alleviate the stress accumulation caused by the huge volume expansion of silicon-based materials during charging and discharging. It has outstanding advantages such as high initial coulombic efficiency and excellent cycle stability, which can significantly improve the energy density and lifespan of lithium batteries, making it suitable for the production and application of high-performance lithium-ion batteries.

The invention relates to the field of glue preparation, in particular to a high-strength glue preparation system and method.The high-strength glue preparation method comprises the following steps that S1, water and polyvinyl alcohol are added into a mixing device, raw materials are made to flow back and forth to be fully stirred and mixed till the polyvinyl alcohol is completely dissolved, and a mixed solution A is obtained; s2, under the stirring condition, adding part of the emulsifier into the mixed solution A, then slowly adding vinyl acetate and an initiator, and continuously stirring to obtain a mixed solution B; s3, after the mixed solution B is cooled, adding sodium bicarbonate, dibutyl phthalate, diethylene glycol dibenzoate, octanol and isopropanol under a stirring condition, and uniformly mixing to obtain a mixed solution C; and S4, adding the residual emulsifier, allyl methacrylate, glycol dimethacrylate and toluene diisocynate into the mixed solution C, uniformly stirring and mixing, preserving heat at 45 DEG C, and cooling to room temperature to obtain the high-strength glue. The mixing device is used for enabling raw materials to flow back and forth to be fully stirred and mixed.

The invention relates to the technical field of beauty makeup products, and particularly discloses durable shaping transparent eyebrow dye and a preparation method thereof. The durable shaping transparent eyebrow dye is prepared from the following raw materials in parts by weight: 60 to 80 parts of a solvent, 0.5 to 1 part of an acrylic acid / VP cross-linked polymer, 0.03 to 0.08 part of a pH regulator, 20 to 25 parts of ceteareth-30, 0.5 to 0.8 part of phenoxyethanol, 1 to 3 parts of caprylyl glycol, 0.0008 to 0.1 part of a thickening agent, 1 to 3 parts of butanediol and 1 to 5 parts of an acrylic acid / allyl methacrylate copolymer AMP salt solution. Under the synergistic effect of all the components, the eyebrow dye can be promoted to have a lasting and stable makeup effect.

The disclosure provides lenses for treating ocular diseases, including a bowl-shaped silicone hydrogel carrier and umbilical cord mesenchymal stem cells loaded on the carrier; the bowl-shaped silicone hydrogel carrier is polymerized from an organosilicone monomer and a hydrophilic monomer under the action of a cross-linking agent and an initiator; the organosilicone monomer is polymerized from a hydrogenated silicone oil and allyl methacrylate under the action of a polymerization inhibitor and a catalyst; and the umbilical cord mesenchymal stem cells are treated with irradiation.

This invention discloses a bilirubin adsorbent, its preparation method, and its uses, belonging to the field of polymer materials technology. The key feature is the preparation of microspheres using styrene and 1H-imidazolium-1-carboxylic acid allyl ester as monomers and divinylbenzene and allyl methacrylate as crosslinking agents through multi-component copolymerization. These microspheres are then subjected to a quaternization reaction to obtain a bilirubin adsorbent resin with high selectivity, high adsorption performance, and good biocompatibility. The beneficial effects of this invention are: using styrene and 1H-imidazolium-1-carboxylic acid allyl ester as monomers, the imidazole ring of 1H-imidazolium-1-carboxylic acid allyl ester and the pyrrole ring in bilirubin are both five-membered rings containing nitrogen atoms. The similarity between the two structures easily leads to specific interactions, enabling the specific recognition and adsorption of bilirubin molecules through hydrogen bonding and π-π stacking interactions, thus improving the selectivity and adsorption performance of bilirubin.

The invention relates to the technical field of coatings and fine chemical engineering, and discloses a preparation method of wear-resistant high-temperature-resistant flame-retardant carbon black color paste, which comprises the following steps: (1) dispersing carbon black in N, N-dimethylformamide (DMF), and carrying out ultrasonic treatment to obtain a carbon black suspension; (2) adding tridecafluorooctyltriethoxysilane (F13TEOS) and ethanol into the carbon black suspension, heating and stirring to react, separating lower-layer suspension after the reaction is finished, washing and filtering to obtain fluorosilane modified carbon black; and (3) carrying out a copolymerization reaction on dimethylaminoethyl methacrylate and allyl methacrylate in the presence of a dithiocarbonate chain transfer agent to synthesize the bifunctional dispersant. Compared with the prior art, the color paste has the advantages that carbon black is subjected to fluorosilane hydrophobic modification, and the specific bifunctional dispersing agent is combined, so that the wear resistance, the high temperature resistance and the flame retardance of the color paste are remarkably improved, and meanwhile, the original coloring performance and stability of the color paste are kept.

The invention provides a reactive organosilicon polymer, and a preparation method and application thereof. The preparation method comprises the following steps: (1) reacting linear silicone oil with two ends containing hydrogen with allyl methacrylate in the presence of a noble metal catalyst and a polymerization inhibitor to prepare modified silicone oil with two ends functionalized by acrylate; (2) telomerization is carried out on the modified silicone oil with two ends functionalized by acrylate in the step (1) and high-hydrogen-content silicone oil and / or a siloxane ring body to obtain side chain hydrogen-containing silicone oil; and (3) carrying out hydrosilylation reaction on the side chain hydrogen-containing silicone oil obtained in the step (2) and allyl polyether and / or allyl methacrylate to obtain the reactive organosilicon polymer. The organosilicon polymer prepared by the invention is used as a slipping and leveling auxiliary agent of radiation curing coating or printing ink, can effectively prevent Benard vortexes from being generated, and has the functions of leveling and shrinkage cavity inhibition.

The invention discloses an acrylic ester extra-black deepening agent emulsion for superfine denier polyester as well as a preparation method and application of the acrylic ester extra-black deepening agent emulsion, and belongs to the technical field of textile chemicals. N-hydroxymethyl acrylamide and diacetone acrylamide are used as functional monomers; a Tween-40 / hexadecyl trimethyl ammonium chloride nonionic / cationic compound emulsifier is adopted; azobis (isobutylamidine hydrochloride) is selected as the initiator; the emulsion is prepared through a semi-continuous seed emulsion polymerization process, the particle size of the emulsion is 50-80 nm, the room-temperature placement stability is larger than or equal to 6 months, the mass percent of the effective components is 25-35%, and the balance is deionized water. The deepening agent can be firmly combined with the surface of the superfine denier polyester fiber through the synergistic effect of all monomers, the blackness value and color fastness of the fiber are remarkably improved, and meanwhile the soft hand feeling and good physical and mechanical properties of the fabric are kept.