24 results about "Lauryl methacrylate" patented technology

The invention relates to the technical field of films, in particular to a high-surface tension aluminized base film and a preparation method thereof. The method comprises the following steps: grafting modified fumed silica with a silane coupling agent KH-570, and grafting a ternary polymerization shell layer composed of 2-acrylamide-2-methylpropanesulfonic acid, lauryl methacrylate and glycidyl methacrylate on the surface of the modified fumed silica to obtain organic anti-sticking silica; secondly, synthesizing an aromatic sulfonated polyester prepolymer, loading nano titanium dioxide, and carrying out melt blending extrusion with polypropylene to form polar cluster polypropylene master batches; and finally, blending polypropylene resin, the master batch and maleic anhydride grafted polypropylene, and carrying out melt extrusion, air cooling and slow cooling and two-way stretching molding. The obtained base film is high in surface tension, high in aluminized layer adhesive force, excellent in oxygen and water vapor barrier property, good in thermal stability and suitable for the field of high-end packaging.

The invention provides a bilirubin adsorbing material as well as a preparation method and application thereof, and belongs to the technical field of blood perfusion materials. The bilirubin adsorption material is mainly prepared from chitosan quaternary ammonium salt, microfibrillated cellulose, a surfactant and a cross-linking agent, wherein the surfactant is one or more of lauryl methacrylate, Span 80 and Span 85. The structure of the bilirubin adsorption material is that a hydrophilic polysaccharide chain is stabilized in a pore wall shell, and a hydrophobic chain of a surfactant is repelled and assembled to a pore wall core. When the bilirubin adsorption material adsorbs albumin-bilirubin, the adsorption effect is better than that of MFC / QCS frozen gel, and the adsorption capacity and the adsorption rate are enhanced along with the increase of the concentration of albumin.

The invention provides an interface-stable and anti-fatigue Janus conductive hydrogel, a preparation method and sensing application, and the preparation method comprises the following steps: uniformly mixing acrylic acid, ethylene glycol dimethacrylate, a photoinitiator, ferric chloride hexahydrate and deionized water to obtain a support layer precursor solution; mixing acrylic acid, lauryl methacrylate, N, N '-methylene bisacrylamide and the nanocellulose suspension, performing ultrasonic treatment to obtain a Pickering emulsion, adding a photoinitiator into the Pickering emulsion, and uniformly mixing to obtain an adhesion layer precursor solution; and pouring the support layer precursor solution into a mold, then slowly pouring the adhesion layer precursor solution onto the support layer precursor solution, carrying out ultraviolet curing, taking out from the mold, and cleaning to obtain the Janus conductive hydrogel. According to the method, the Pickering emulsion phase separation and the charge shielding effect are combined through a simple and convenient one-step method, and the problems that a traditional multi-layer assembly process is complex in operation and unstable in interface are effectively solved.

The application discloses waterproof and decorative integrated paint and a preparation method thereof. The paint comprises silicone emulsion, acrylic emulsion, pigment, heavy calcium carbonate, sheeted kaolin, silicon powder, modified graphene oxide, nano silicon dioxide, ethylene glycol, ultraviolet absorber, light stabilizer, heat stabilizer, dispersant, hydrophobic agent, film forming aid, defoaming agent, leveling agent, thickening agent, preservative and water. The acrylic emulsion is obtained by polymerization reaction of methyl methacrylate, cyclohexyl methacrylate, butyl acrylate, lauryl methacrylate, hydroxyethyl methacrylate, glycidyl methacrylate, acrylic acid and KH-570. The modified graphene oxide is obtained by modification of graphene oxide by beta-cyclodextrin and vinyltrimethoxysilane. The waterproof and decorative integrated paint provided by the application has the functions of waterproofing and decoration, and has excellent weather resistance, stain resistance and bonding strength.

The invention relates to the technical field of lithium ion batteries, in particular to a preparation method of a binder for a lithium battery. The preparation method specifically comprises the following steps: step 1, initiating polymerization of vinylidene fluoride, dioctyl sebacate and lauryl methacrylate to obtain modified polyvinylidene fluoride resin; 2, carboxymethyl chitosan is subjected to a reaction with diketoacrylamide and phthalic dihydrazide in sequence, and modified chitosan is obtained; and 3, mixing the modified polyvinylidene fluoride resin, the modified chitosan and polyvinyl alcohol, stirring and compounding to obtain the binder for the lithium battery. The binder for the lithium battery can form a plurality of hydrogen bond network structures with the surface of a negative electrode active material, so that the lithium battery has a firmer mechanical structure, and the lithium battery can bear the stress of internal volume expansion; in addition, the binding force between the negative electrode active material and the current collector can be greatly improved, the cycle performance of the battery is improved, the electrochemical performance and the safety performance of the lithium battery are ensured, and great practical application significance is achieved.

The invention relates to the field of water treatment, and discloses a self-tracing type scale and corrosion inhibitor based on a novel fluorescent copolymer and a preparation method, and the scale and corrosion inhibitor comprises the following components: the novel fluorescent copolymer, an auxiliary polymer, a conventional AMPS copolymer, organic phosphonate, zinc salt and the balance of water. The novel fluorescent copolymer is obtained by carrying out copolymerization reaction on a fluorescent monomer B, acrylic acid and 2-acrylamido-2-methylpropanesulfonic acid; and the fluorescent monomer B is prepared by reacting 4-chloro-1, 8-naphthalic anhydride with 3-dimethylaminopropylamine, reacting the product with sodium methoxide, and further reacting the obtained intermediate with chloropropene. And the auxiliary polymer is a lauryl methacrylate-N, N-dimethylaminoethyl methacrylate copolymer. According to the self-tracing type scale and corrosion inhibitor, the fluorophore is covalently bonded to a polymer main chain, accurate online monitoring of the concentration of the agent is achieved, and the self-tracing type scale and corrosion inhibitor has excellent scale and corrosion inhibition performance.

The application discloses an antibacterial nanofiber hemodialysis membrane and a preparation method thereof, and relates to the technical field of dialysis membranes, and comprises the following process: a surface treatment agent is obtained by mixing a chitosan derivative, heparin, dopamine, an unsaturated monomer and an initiator in a DMF / phosphate buffer mixture; a polyethersulfone nanofiber membrane is taken as a support layer, the surface treatment agent is impregnated, UV irradiation is performed, and a functional layer is formed to obtain a dialysis membrane. The application compounding cerium tris-acrylate phenanthroline hybrid CeO2, N-vinyl pyrrolidone, sodium p-styrene sulfonate and lauryl methacrylate as the unsaturated monomer, compounding the chitosan derivative, heparin and dopamine to prepare the surface treatment agent, impregnating the polyethersulfone nanofiber membrane, and performing irradiation and solidification to form the functional layer, the prepared hemodialysis membrane has high efficient anticoagulation and broad-spectrum antibacterial property, high permeability, low protein adsorption and long-term stability.

The invention discloses an emulsion type low-VOC (volatile organic compound) acrylate adhesive for bonding low-surface-energy materials, a preparation method of the emulsion type low-VOC acrylate adhesive and an adhesive tape. The adhesive is prepared from the following raw material components in parts by weight: 100 to 300 parts of 2-ethylhexyl acrylate, 20 to 60 parts of butyl acrylate, 4 to 20 parts of methyl methacrylate, 1 to 10 parts of methacrylic acid, 0.2 to 2 parts of itaconic acid, 1 to 6 parts of hydroxyethyl acrylate, 0.5 to 2 parts of glycidyl methacrylate, 1 to 6 parts of acryloyloxyethyl urea alkane and 1 to 6 parts of lauryl methacrylate. The emulsion is prepared from the following components in parts by weight: 1-4 parts of a reactive emulsifier, 0.2-2 parts of a first initiator, 0.1-1 part of a second initiator, 0.1-1 part of a molecular weight regulator, 40-160 parts of hydrogenated rosin glyceride emulsion, 1-6 parts of an external crosslinking agent, 0.1-4 parts of sodium bicarbonate and 150-300 parts of deionized water. The adhesive disclosed by the invention shows high initial adhesion, high peel strength, excellent holding power and environmental aging resistance to low-surface-energy materials such as foam and felt, and can meet the requirements in the fields of automotive trim, high-end packaging and the like.

The invention discloses a high-strength acrylic structural adhesive and a preparation method thereof, and belongs to the technical field of structural adhesives. The high-strength acrylic structural adhesive comprises a component A and a component B, the component A comprises an acrylate monomer, a first cross-linking agent, an antioxidant, a polyacrylate elastomer, a polymerization inhibitor, a reducing agent and modified mesoporous silica; the component B comprises an acrylate monomer, a first cross-linking agent, a polyacrylate elastomer, a polymerization inhibitor, an oxidizing agent and modified mesoporous silica; the acrylic ester monomers comprise ethyl methacrylate and lauryl methacrylate; 2, 4, 6-triallylphenol is adopted as the antioxidant; the polyacrylate elastomer is obtained by carrying out composite reaction on 2-acrylamido-2-methyl-1-propane sulfonic acid polymer particles, ethyl acrylate, vanillin methacrylate, an initiator and a second cross-linking agent; the second cross-linking agent is prepared from ethylene glycol dimethacrylate and triallyl phosphite ester.

This invention discloses a high-performance non-polar adhesive material and its preparation method. The adhesive material is prepared by first preparing an interfacial bridger containing lauryl methacrylate, butyl acrylate, methyl methacrylate, methacrylic acid, and hydroxyethyl methacrylate, and then reacting it with a nano-calcium carbonate modified polyacrylate emulsion, C9 petroleum resin emulsion, emulsified silicone oil, potassium zirconium carbonate, nano-active zinc oxide, LK water-resistant agent, Kathon, and water through a specific process. The interfacial bridger possesses both a non-polar long-chain alkyl structure and polar active groups, which can improve the wetting and interfacial adsorption capacity of non-polar substrates such as polyethylene and polypropylene, and enhance the synergistic effect with the main emulsion and cross-linking system. The adhesive material has advantages such as fast initial tack, high bond strength, good cold water resistance, and excellent system stability, and is suitable for bonding polyethylene or polypropylene to paper, glass, and coated paper.

The invention belongs to the technical field of rubber rollers, and particularly provides a rubber roller and a preparation method thereof. The rubber roller comprises an outer coating material and a core shaft, the outer coating material is prepared from the following raw materials: nitrile rubber, reinforcing filler, a vulcanization system, zinc oxide, stearic acid, an L-aspartic acid-metal ion complex and a reinforcing agent; the reinforcing agent is prepared from tannic acid, hydroxyethyl methylacrylate and lauryl methacrylate. The rubber roller prepared by the invention has good rebound resilience and wear resistance.

This invention discloses a perovskite quantum dot composite film and its preparation method. The raw materials for preparing the composite film include a perovskite quantum dot dispersion, lauryl methacrylate, zinc undecanoate, methacryloyloxyethyl phosphate, polyurethane acrylate oligomer, mercapto monomer, and a photoinitiator. The preparation process includes: ligand exchange between zinc undecanoate and the quantum dot dispersion; addition of lauryl methacrylate and removal of the original solvent under reduced pressure; subsequent addition of the remaining components for degassing and mixing; coating a wet film; and curing by dual-band continuous irradiation. This invention utilizes zinc undecanoate as a bridge, enabling its terminal double bonds to undergo cross-linking reactions with the matrix resin, thus covalently anchoring the quantum dots in situ within the polymer network. This reduces the spatial migration and aggregation of quantum dots, helping to delay the degradation of the optical properties of the composite film.

A positive electrode for a lithium ion battery, comprising a current collector and a positive electrode composition layer provided on a surface of the current collector, wherein the current collector and the positive electrode composition layer are not adhered to each other, the positive electrode composition layer contains coated positive electrode active material particles and a conductive aid, wherein at least a part of a surface of each positive electrode active material particle is coated with a coating layer containing a polymer compound (A) that is any one of a copolymer (A1) having a methacrylic acid, a lauryl methacrylate, and a 1,6-hexanediol dimethacrylate as constituent monomers, a copolymer (A2) having an isobornyl methacrylate and a 1,6-hexanediol dimethacrylate as constituent monomers, or a copolymer (A3) having a lauryl methacrylate, a 2-ethylhexyl methacrylate, and a 1,6-hexanediol dimethacrylate as constituent monomers, a weight proportion of the 1,6-hexanediol dimethacrylate contained in the constituent monomers of the copolymer is 0.2 to 1% by weight based on the total weight of the constituent monomers of the copolymer, and a weight average molecular weight of the polymer compound (A) is 300,000 or less.

The invention discloses a waterproof and decorative integrated coating and a preparation method thereof. The coating is prepared from organic silicon emulsion, acrylic emulsion, pigment, ground calcium carbonate, flaky kaolin, silica powder, modified graphene oxide, nano silicon dioxide, ethylene glycol, an ultraviolet light absorber, a light stabilizer, a heat stabilizer, a dispersing agent, a water repellent, a coalescing agent, a defoaming agent, a flatting agent, a thickening agent, a preservative and water. The acrylic emulsion is prepared by carrying out polymerization reaction on methyl methacrylate, cyclohexyl methacrylate, butyl acrylate, lauryl methacrylate, hydroxyethyl methacrylate, glycidyl methacrylate, acrylic acid and KH-570; the modified graphene oxide is obtained by modifying graphene oxide by using beta-cyclodextrin and vinyl trimethoxy silane. The waterproof and decorative integrated coating provided by the invention has waterproof and decorative dual functions, and also has excellent weather resistance, stain resistance and bonding strength.

This invention discloses a dual-response hydrogel-based wet / thermal generator and its preparation method. The preparation method includes: mixing lauryl methacrylate, lithium chloride, tannic acid, lithium dodecyl sulfonate, phytic acid, glycerol, pure water, acrylamide, and 2-acrylamide-2-methylpropanesulfonic acid in a specific ratio, and stirring at 60°C to dissolve and obtain a premixed solution; adding a photoinitiator and a crosslinking agent to the premixed solution, mixing thoroughly, and then injecting into a mold; and polymerizing under 365nm ultraviolet light to obtain a dual-response hydrogel; this hydrogel can be matched and assembled with hydrophobic carbon cloth or graphite plates to construct a wet / thermal generator with three working modes: wet power generation, thermal power generation, and wet / thermal synergistic power generation. This generator combines wet power generation and ion thermoelectric functions and can be applied to self-powered human body sensor systems, motion monitoring, and information transmission.

The application belongs to the technical field of textiles, and particularly relates to a preparation method of a solvent-free photopolymerization hydrophobic coating and application thereof, and the preparation method comprises the following steps: (1) uniformly mixing glycidyl methacrylate monomers and lauryl methacrylate monomers to obtain a monomer mixture; (2) adding a photoinitiator into the monomer mixture prepared in step (1) and ultrasonically dispersing to obtain a finishing liquid; (3) immersing a substrate in the finishing liquid prepared in step (2) and placing the substrate in a photocuring machine to perform ultraviolet light irradiation; and (4) taking out the substrate after the light irradiation is completed, performing post-treatment, and forming a solvent-free photopolymerization hydrophobic coating on the surface of the substrate. The method has low energy consumption and low cost, does not need to use fluorine-containing compounds and additional solvents, and does not need high-temperature treatment, and thus provides a brand-new, green and efficient hydrophobic modification idea for substrates such as cotton fabrics.

The present application relates to the technical field of detection kit, in particular to a preparation method of fluorescent microspheres, fluorescent microspheres and a preparation method of a kit. The present application utilizes 4-vinylbenzoic acid, benzoyl methane and o-phenanthroline as ligands to prepare europium complexes; the prepared europium complexes are subjected to first-stage copolymerization with styrene and lauryl methacrylate to obtain a polymer inner core with europium complexes; in the second-stage polymerization process, itaconic acid is added for continuous polymerization; the prepared fluorescent microspheres are uniform in size, high in fluorescence intensity and strong in stability. The prepared detection kit has the advantages of high detection sensitivity and stable and reliable detection effect in the detection of myocardial injury marker cTnI.

The invention relates to the technical field of fibers, in particular to a super absorbent fiber, a preparation method and application of the super absorbent fiber in paper diapers. According to the method, aiming at the problems of poor liquid retention rate and weak interface bonding of the existing water-absorbent resin under pressure, an anchoring point is introduced through aminolysis of polyester fibers by allyl amine; then carrying out illumination polymerization with an inner layer monomer system (deionized water, sodium hydroxide, acrylic acid, N, N '-methylene bisacrylamide and a photoinitiator 2959); carrying out ionic crosslinking by using a calcium salt treatment solution and carrying out semi-drying; and finally, carrying out illumination polymerization with an outer layer monomer system (containing lauryl sodium sulfate, lauryl methacrylate, acrylic acid, acrylamide and the like). The obtained fiber is subjected to covalent linkage and gradient cross-linking, the inner layer is subjected to high cross-linking and water interlocking, the outer layer contains a hydrophobic micro-area flexible network, and the fiber has high water absorption rate, excellent centrifugal liquid retention capacity and compression absorption capacity, rapid absorption, low moisture return and high cyclic compression stability and is suitable for an absorption core layer of a paper diaper.

The invention belongs to the technical field of textiles, and particularly relates to a preparation method and application of a solvent-free photopolymerization hydrophobic coating, the preparation method comprises the following steps: (1) uniformly mixing a glycidyl methacrylate monomer and a lauryl methacrylate monomer to obtain a monomer mixed solution; (2) adding a photoinitiator into the monomer mixed solution prepared in the step (1), and performing ultrasonic dispersion to obtain a finishing solution; (3) soaking a base material in the finishing liquid prepared in the step (2), and placing the base material in a photocuring machine for ultraviolet irradiation; and (4) taking out the base material after illumination is finished, and performing post-treatment to form the solvent-free photopolymerization hydrophobic coating on the surface of the base material. The method is low in energy consumption and economical in cost, fluorine-containing compounds and additional solvents are not needed, high-temperature treatment is also not needed, and a brand-new, green and efficient hydrophobic modification idea is provided for base materials such as cotton fabrics.

The application discloses a kind of polymer brush functionalized liquid metal nanometer lubricating additive and its preparation method and application.The additive includes gallium indium liquid metal nanometer droplet and poly (lauryl methacrylate) -block-poly (acrylic acid) diblock copolymer grafted on its surface by coordination interaction.The preparation method includes: first, poly (lauryl methacrylate) -block-poly (acrylic acid) diblock copolymer is synthesized by atom transfer radical polymerization method;Then gallium indium liquid metal is mixed with the tetrahydrofuran solution of the block copolymer, and polymer brush functionalized liquid metal nanometer droplet is obtained by ultrasonic treatment.The application realizes the effective regulation of liquid metal nanometer droplet size by regulating the composition of block copolymer.The additive has excellent dispersion stability in base oil, and compared with base oil PAO10, the average friction coefficient is reduced by 47.0% at very low additive amount (0.1 wt%), the wear volume is reduced by 82.1%-92.8%, and excellent friction reduction and wear resistance are shown, which can be widely applied to the lubrication system of mechanical equipment.

The invention relates to the technical field of high polymer material synthesis, and discloses thermoplastic acrylic resin resistant to high and low temperature impact and high in adhesive force and preparation thereof.The thermoplastic acrylic resin comprises a copolymer prepared through free radical solution polymerization in a mixed organic solvent with the solubility parameter being 9.0 (cal / cm < 3 >) 1 / 2-9.5 (cal / cm < 3 >) 1 / 2, the copolymer is formed by copolymerizing isobornyl methacrylate and lauryl methacrylate according to a mass ratio of 1.2: 1 to 1.6: 1 with a polar functional group-containing monomer, and the weight-average molecular weight of the copolymer is 35,000 to 55,000. By regulating and controlling a solvation environment and a space piling structure of a monomer side chain, the copolymer can be used for preparing a polymer, and the polymer can be used for preparing the polymer. The polymerization kinetics problem that a high-rigidity monomer is difficult to obtain high molecular weight is effectively solved, so that the obtained resin has excellent high-temperature creep resistance, low-temperature impact toughness and lasting adhesive force to a base material under the condition of not depending on chemical crosslinking, and is particularly suitable for the field of outdoor precise protective coatings.

The invention discloses an aircraft wall surface friction stress detection sensor and method based on ionic gel. The aircraft wall surface friction resistance stress detection sensor adopts a layered structure and comprises a flexible substrate, a heating layer, an insulating layer, a sensing layer and a protection packaging layer. An ionic gel material formed by a copolymer network of acrylic acid (AA) and dodecyl methacrylate (LMA) and ionic liquid is used as a sensing layer, and the TCR of the sensing layer is far higher than that of a traditional metal heat-sensitive material. During detection, the sensor is attached to the wall surface of an aircraft, the temperature change of the sensing layer is caused by the friction resistance change caused by constant-temperature heating of the heating layer and fluid flowing, then significant resistance change is generated, and the friction resistance stress is inverted by measuring the signal. The aircraft wall surface friction resistance stress detection sensor is high in sensitivity and fast in response, the flexible structure can be conformally attached to a complex curved surface, interference to a flow field is small, and an effective means is provided for high-maneuverability aircraft wall surface friction resistance stress detection.

The application provides a method for preparing polyaniline physically cross-linked conductive hydrogel and a flexible strain sensor. The method comprises the following steps: mixing a chitosan derivative, cetyltrimethylammonium bromide, manganese dioxide, acrylic acid, lauryl methacrylate and ammonium persulfate to form a precursor solution, and polymerizing the precursor solution by heating to obtain a hydrogel matrix; and then immersing the hydrogel matrix in an aniline sulfuric acid solution, so that the manganese dioxide embedded in the hydrogel network initiates in-situ oxidative polymerization of aniline in the hydrogel to generate polyaniline, and the manganese dioxide is partially reduced to form manganese ions and is coordinated with carboxyl groups. The polyaniline physically cross-linked conductive hydrogel prepared by the method has a short synthesis cycle, good mechanical properties and good conductivity, and can be used for detecting human motion of flexible wearable electronic devices.

The invention relates to the technical field of paint, and discloses environment-friendly paint and a preparation method thereof.The environment-friendly paint is prepared from phenyl acrylate, styrene, lauryl methacrylate, tert-butyl acrylate, anti-fouling and anti-corrosion cellulose, coumaric acid modified polyether, absolute ethyl alcohol, an initiator, a simethicone defoaming agent and a polyurethane flatting agent; the anti-fouling and anti-corrosion cellulose and coumaric acid modified polyether are prepared to participate in the preparation process of the paint matrix, so that the prepared environment-friendly paint has excellent anti-fouling and anti-corrosion capability, is high in toughness and not easy to damage, also has an excellent anti-oxidation effect, can meet the use requirements in various environments, and has a wide application prospect. And even if used for a long time, the device does not need to be replaced frequently, thereby saving cost and having long service life.