59 results about "Ethyleneglycol dimethacrylate" patented technology

The invention discloses hydrogel loaded with antibacterial polypeptide as well as a preparation method and application of the hydrogel. The preparation method of the hydrogel comprises the steps that antibacterial polypeptide and polyethylene glycol dimethacrylate are subjected to a cross-linking reaction, the hydrogel can be obtained, and the antibacterial polypeptide is obtained through polymerization synthesis of a cationic CBL monomer compound and an HBL monomer compound; the hydrogel has remarkable sterilization and anti-biofilm effects, and in-vitro cytotoxicity shows that the antibacterial polypeptide hydrogel product has no inhibition effect on normal cell growth; when the hydrogel dressing is used as a hydrogel dressing and is combined with novobiocin for use, more than 99% of antibacterial effect is achieved in a diabetes wound infection model and a fungal psoriasis infection model; and when being used as a hydrogel preparation to be combined with fluconazole, the compound has the effect of inhibiting growth of more than 99% of fungi in an animal vaginitis model.

The invention relates to an in-situ curing gel structure electrolyte as well as a preparation method and application thereof. The preparation method comprises the following steps: (1) mixing a resin matrix with a pore-forming agent, then adding a curing agent for mixing to obtain a mixed solution, and pouring the mixed solution into a closed mold for curing to obtain a resin film; soaking and drying the resin film to obtain porous resin; and (2) mixing 4-styrene sulfonyl (phenylsulfonyl) imide lithium salt, polyethylene glycol methyl ether acrylate, polyethylene glycol dimethacrylate, ethylene carbonate and azodiisobutyronitrile to prepare a mixed solution, and soaking the porous resin in the mixed solution to react and cure, thereby obtaining the in-situ curing gel structure electrolyte. The preparation method is simple, and the prepared in-situ curing gel structure electrolyte can improve the mechanical property, the battery capacity and the cycle performance of the in-situ curing gel structure electrolyte.

The invention relates to the field of material chemistry on-line detection, in particular to a 1, 2, 4-trichlorobenzene on-line detection material and a preparation method thereof, and provides a film-forming sensitive layer material capable of being coated on the surface of a transducer, and the film-forming sensitive layer material comprises chitosan, a crosslinking component with the content of 0.1-5wt% in terms of glutaraldehyde and magnetic core-shell molecularly imprinted particles after being dried, the magnetic core-shell molecularly imprinted particle contains a ferroferric oxide magnetic inner core, a silicon dioxide middle layer and a molecularly imprinted polymer shell layer, and the shell layer is a cyclodextrin methacrylate and ethylene glycol dimethacrylate copolymer network and takes 1, 2, 4-trichlorobenzene as a template. The material keeps the membrane integrity and long-term stability under the working conditions of circulation and regeneration and also gives consideration to quick response, and the residual 1, 2, 4-trichlorobenzene is controlled to be not greater than 0.10 wt% and the residual glutaraldehyde is controlled to be not greater than 0.5 wt%. The method is used for relieving structural mass transfer contradiction and processing and coating coupling contradiction caused by high filler load, and has online detection application value.

The present invention discloses a cross-linked cellulose-based gel polymer electrolyte and a preparation method thereof. The method comprises the following steps: a preparation method of water-soluble allyl cellulose with different degrees of substitution and a preparation method of a cross-linked cellulose-based gel polymer electrolyte. A polymer film is obtained by cross-linking allyl cellulose polyethylene glycol dimethacrylate / polyethylene glycol diacrylate and 1,4-butanediol bis(thioglycolate) with double bonds under ultraviolet irradiation through a thiol-ene click reaction; the polymer film is immersed in a carbonate electrolyte to obtain a cross-linked cellulose-based gel polymer electrolyte. The ionic conductivity and interfacial impedance of the gel polymer electrolyte can be adjusted by changing the degree of substitution of allyl cellulose and the content of polyethylene glycol dimethacrylate / polyethylene glycol diacrylate. The cross-linked cellulose-based gel polymer electrolyte has high ionic conductivity, high interfacial compatibility, high thermal stability and cycling performance.

The invention relates to a dental resin composition with an antibacterial function as well as a preparation method and a detection method thereof. The composition comprises a basic resin matrix and a basic resin matrix, wherein the basic resin matrix is prepared from the following components in percentage by weight: 35wt% of bisphenol A diglycidyl ether dimethacrylate (Bis-GMA), 40wt% of triethylene glycol dimethacrylate (TEGDMA), 24wt% of 2-hydroxyethyl methacrylate (HEMA), 0.5 wt% of camphorquinone (CQ) and 0.5 wt% of N, N-dimethyl-4-ethyl aminobenzoate (EDMAB); chlorinated catechol functional monomer: chlorinated catechol monomer Cl-DMA as shown in formula (I), chemical name of chlorinated catechol monomer Cl-DMA is N-(2-chloro-4, 5-dihydroxyphenethyl) methacrylamide, and structural formula of chlorinated catechol monomer Cl-DMA is # imgabs0 #

The present invention relates to a bridge surface waterproofing method having excellent waterproofness and constructability. The present invention provides a bridge surface waterproofing method comprising the steps of: evenly preparing the surface of a bridge surface; forming a primer layer on the surface of the bridge surface; forming a waterproofing layer that is from 2 mm to 4 mm by applying a bridge surface waterproofing agent composition onto the primer layer so that the waterproofing layer is inclined in a specific direction of the bridge surface; and forming an asphalt layer on the waterproofing layer, wherein the bridge surface waterproofing agent composition comprises 40 to 60 wt% of asphalt, 5 to 10 wt% of styrene butadiene styrene, 5 to 10 wt% of ethylene glycol dimethacrylate, 3 to 5 wt% of octamethylcyclotetrasiloxane, 5 to 10 wt% of silica particles having an average particle diameter of 200 to 400 nm, 5 to 10 wt% of silica particles having an average particle diameter of 700 to 1000 nm, 3 to 8 wt% of methyl methacrylate, 1 to 3 wt% of 4-hydroxy-3-methoxybenzoic acid, 5 to 10 wt% of a fiber reinforcing material, 1 to 3 wt% of a dispersant, 1 to 3 wt% of a viscosity modifier, and 1 to 3 wt% of a tackifier.

The present application belongs to the technical field of adsorbing materials, and particularly relates to a titanium dioxide molecular imprinting polymer as well as a preparation method and application thereof. The present application uses Sudan red as a template molecule, acrylamide as a functional monomer, ethylene glycol dimethacrylate as a crosslinking agent, and azobisisobutyronitrile as an initiator to construct a cavity structure matching the Sudan red molecule on the surface of the amino-modified titanium dioxide ultrafine particles, and successfully prepares the titanium dioxide molecular imprinting polymer. The material combines the photocatalytic characteristics of the titanium dioxide and the selective recognition ability of the molecular imprinting, can degrade the Sudan red under light, and has a higher photocatalytic efficiency than that of the pure titanium dioxide. The material synthesized through the surface imprinting technology has a three-dimensional cavity complementary to the template molecule, and has a larger adsorption capacity than that of the non-imprinted material. The material realizes the integration of the selective recognition, adsorption and degradation of the Sudan red, and is suitable for complex industrial environments.

The invention discloses a basalt fiber composite material with self-healing performance and a preparation method thereof, and belongs to the technical field of fiber reinforced composite materials. Comprising the following steps: putting vinyl functionalized desized basalt fiber fabric into a 1-vinyl-3-ethylimidazolium bis (trifluoromethylsulfonyl) imide monomer, azodiisobutyronitrile and ethylene glycol dimethacrylate solution, and reacting to obtain polyion liquid modified basalt fiber fabric; putting the basalt fiber fabric into a urea and carboxymethyl cellulose solution, and reacting to obtain a carbon sphere modified basalt fiber fabric; then putting the basalt fiber fabric into aminated carbon nanotube suspension liquid to obtain carbon nanotube modified basalt fiber fabric, connecting silver wires, laying the carbon nanotube modified basalt fiber fabric and low-density polyethylene sheets, electrifying and pressurizing to prepare a basalt fiber composite material; the basalt fiber fabric is modified by the conductive material, so that the basalt fiber fabric is endowed with electric heating performance, and the self-healing performance of the basalt fiber composite material is realized while the mechanical property of the basalt fiber composite material is improved.

The invention discloses a chitosan modified ferroferric oxide / carboxylated multi-walled carbon nanotube-based molecularly imprinted electrochemical sensor as well as a preparation method and application thereof, and relates to the technical field of electrochemical sensing. The invention aims to solve the problems that the existing method for detecting carbendazim is complicated to operate and high in cost and the traditional sensor is poor in selectivity. The invention discloses a molecularly imprinted electrochemical sensor based on chitosan modified ferroferric oxide / carboxylated multi-walled carbon nanotubes. The molecularly imprinted electrochemical sensor comprises a glassy carbon electrode, and a molecularly imprinted polymer and CS-Fe3O4-CMWCNTs which are modified on the surface of the glassy carbon electrode, the molecularly imprinted polymer is prepared by taking carbendazim as a template molecule, methacrylic acid as a functional monomer, ethylene glycol dimethacrylate as a cross-linking agent and azodiisobutyronitrile as an initiator. The molecularly imprinted electrochemical sensor is applied to detection of carbendazim.

The invention discloses a continuous preparation method of ethylene glycol dimethacrylate, and aims to provide a continuous preparation method of ethylene glycol dimethacrylate, which is high in reaction rate and high in product yield, and is characterized in that methacrylic acid and ethylene glycol are used as raw materials, and continuous production is realized through reactive distillation; the technical scheme comprises the following steps; the method comprises the following steps: 1, filling a reactive distillation tower with a filler, putting methacrylic acid, ethylene glycol, a polymerization inhibitor and sodium hydrogen sulfate into a feeding tank, and uniformly stirring to obtain a reaction raw material; 2, turning on a main power supply, starting a reaction control system, starting a cyclic heating device, and controlling the temperature of the rectifying column to be 100-120 DEG C; starting a circulating condensing device, and controlling the temperature of condensed water to be 0-10 DEG C; 3, starting a peristaltic pump to pump the reaction raw materials in the feeding tank into the reaction rectifying tower, starting an air pump to introduce air, collecting condensate water at the top of the rectifying tower at the beginning of reaction, and obtaining a crude ethylene glycol dimethacrylate product at the bottom of the rectifying tower; and 4, timely transferring water and methacrylic acid collected at the tower top to a tower top liquid storage tank through a pipeline, and timely transferring an ethylene glycol dimethacrylate crude product collected at a tower kettle to an ethylene glycol dimethacrylate crude product storage tank through a pipeline.

The invention relates to a medical self-shedding water-based light-cured pressure-sensitive adhesive. The pressure-sensitive adhesive is prepared from the following raw material components: water-based light-cured polyurethane, a photoinitiator, a neutralizer, a reactive diluent and water, the neutralizing agent is one or more of dimethylethanolamine, triethylamine, triethanolamine and ammonia water; the active diluent is one or more of acryloyl morpholine, hydroxyethyl acrylate, hydroxyethyl methylacrylate, hydroxypropyl acrylate, hydroxybutyl acrylate, polyethylene glycol 400 dimethacrylate and polyethylene glycol 600 dimethacrylate; the initiator is a mixture of an initiator and a solvent; the water-based light-cured polyurethane is prepared from the following raw material components: diisocyanate, self-made polyol, a catalyst 1, a polymerization inhibitor and an end-capping reagent. According to the medical self-shedding water-based photocuring pressure-sensitive adhesive and the preparation method thereof, the pressure-sensitive adhesive has good initial viscosity, and after the pressure-sensitive adhesive is pasted on an affected part for a period of time, the initial viscosity and the holding power can be weakened until basically disappear, and the pressure-sensitive adhesive is easy to shed from skin without damaging the skin.

The application discloses a sustained-release pregabalin composition and a preparation method thereof, and belongs to the technical field of medicine, and specifically relates to a sustained-release pregabalin composition and a preparation method thereof. The sustained-release pregabalin composition comprises the following components in parts by weight: 45-50 parts of pregabalin or a pharmaceutically acceptable salt thereof; 23-35 parts of a matrix forming agent; 23-30 parts of a swelling agent, wherein the swelling agent is a double-layer network structure, a first layer network provides support for a second layer network, and the two are crosslinked in a physical and chemical manner; 15-25 parts of a sustained-release agent; and 12-20 parts of a filling agent. The first layer network comprises chitosan, sodium alginate, methacrylic anhydride, a photoinitiator and zinc ions; and the second layer network comprises cyclodextrin, polyethylene glycol dimethacrylate, methacrylamide, a crosslinking agent, a photoinitiator and deionized water. The sustained-release tablet of the application is expanded to more than 13 mm after 1.5 h, and the tablet can remain intact, which is beneficial to the retention of the sustained-release pregabalin composition in the stomach, achieves the effect of sustained release, and improves the absorption of pregabalin.

This invention relates to an EPDM-based crosslinked rubber material and its preparation method. The rubber material is obtained by vulcanizing raw rubber composed of EPDM rubber, maleic anhydride-grafted polyethylene, a peroxide vulcanizing agent, ethylene glycol dimethacrylate, p-benzoquinone dioxime, lead metal oxide, paraffin oil, a silane coupling agent, and an antioxidant. The EPDM-based crosslinked rubber material obtained by this invention has a double crosslinked structure. The formulation system endows EPDM rubber with excellent physical and mechanical properties, electrical insulation properties, and aging resistance, while also possessing good injection molding performance. This material solves the problems of high prices and long procurement cycles associated with imported finished products, providing an efficient and economical solution for the production of cable accessories.

The invention provides anti-fog glass and a preparation method thereof. The anti-fog glass comprises a glass substrate, a bonding layer and an anti-fog layer, wherein the bonding layer is arranged between the anti-fog layer and the glass substrate; the coating of the anti-fog layer comprises the following components in parts by weight: 70-90 parts of a first monomer, 5-15 parts of a second monomer, 3-6 parts of a cross-linking agent and 5-10 parts of a photoinitiator; the first monomer comprises one or a combination of more than two of hydroxyethyl methylacrylate, polyethylene glycol diacrylate, N-hydroxymethyl acrylamide, methacrylamide, N-isopropylacrylamide and N, N-dimethylacrylamide; the second monomer is prepared from one or a combination of more than two of trifluoroethyl methacrylate, methyl methacrylate, butyl acrylate, ethylene glycol dimethacrylate, glycidyl methacrylate, benzyl methacrylate and 2-acrylic acid-2-hydroxy-3-phenoxy propyl ester. The anti-fog glass disclosed by the invention has the advantages of anti-fog property, moisture resistance, salt fog resistance and wear resistance.

The invention relates to the technical field of fireproof coatings, in particular to a fireproof thermal insulation coating for an SPC floor base material and a preparation method of the fireproof thermal insulation coating. The fireproof thermal insulation coating for the SPC floor base material is prepared from the following raw materials in parts by mass: 50 to 100 parts of epoxy modified acrylate, 5 to 10 parts of isobornyl acrylate, 1 to 8 parts of diethylene glycol dimethacrylate, 1 to 5 parts of diphenylmethane diisocyanate, 5 to 10 parts of graphene oxide, 5 to 10 parts of ammonium dimolybdate, 1 to 2 parts of amino silane coupling agent, 1 to 5 parts of charring agent and 0.1 to 1 part of catalyst. 1-2 parts of a flatting agent, 1-2 parts of a photoinitiator, 1-2 parts of a delustering agent and 15-25 parts of a solvent. The obtained coating has high adhesive force, good flexibility and excellent fireproof and flame-retardant performance, is especially suitable for preparing SPC floors, meanwhile, the preparation raw materials are easy to obtain, the preparation method is simple, practicability is good, the coating is suitable for large-scale application and popularization, and good industrial application prospects are achieved.

The present application belongs to the technical field of rectification separation, and provides a rectification separation and purification method for preparing high-purity o-dichlorobenzene. The present application adopts the design of loading surface-modified structured packing in the rectification section of the rectification tower. The structured packing is composed of an alumina ceramic matrix and a cross-linked copolymer layer. The cross-linked copolymer layer contains structural units formed by N-vinyl-2-pyrrolidone, 2-hydroxyethyl methacrylate and ethylene glycol dimethacrylate, and is prepared through a silanization and graft cross-linking polymerization process. The rectification tower is operated under the conditions of a tower top absolute pressure of 0.5-20 kPa and a reflux ratio of 2-6. The present application realizes the efficient separation of o-dichlorobenzene products with a purity of not less than 99.9 wt% from dichlorobenzene isomer mixtures, solves the problem that the structured packing in a low-pressure rectification system cannot simultaneously achieve low pressure drop, large flux and high separation efficiency, and the stability of the surface modification layer in a high-temperature organic vapor environment is insufficient, and has wide industrial application value.

The application discloses a gel polymer electrolyte membrane for lithium batteries and a preparation method and application thereof, and belongs to the polymer electrolyte field. The preparation method provided by the application is that a first prepolymer is obtained by reacting a double-end amino polyethylene glycol with o-phthaldehyde in an inert gas; then tetraethylene glycol dimethyl acrylate and a photoinitiator are added to the first prepolymer to obtain a second prepolymer; a lithium salt is added to the second prepolymer to obtain a precursor slurry; the precursor slurry is subjected to film coating treatment, and the film is subjected to ultraviolet curing treatment and standing treatment in sequence to obtain the gel polymer electrolyte membrane. The dynamic imine bond network is constructed by o-phthaldehyde and the double-end amino polyethylene glycol, the ether oxygen branched chain of the tetraethylene glycol dimethyl acrylate is used to construct a three-dimensional ion transmission channel, and the self-repairing is realized by combining the spontaneous and reversible recombination of the imine bond under the ambient humidity, so that the high ion conductivity of the polymer membrane is ensured to meet the high-frequency charging and discharging requirement.

The application provides an ultrasonic response piezoelectric ionic hydrogel and application thereof, and the hydrogel is formed by cross-linking and solidification of a precursor solution under ultraviolet irradiation; components of the precursor solution include a photosensitive polymer, an ionic polymer, a photoinitiator and a solvent; the photosensitive polymer includes any one or a combination of at least two of polyether F127 diacrylate, polyhydroxyethyl methacrylate, polyethylene glycol dimethyl acrylate, methacrylated gelatin or methacrylated collagen; and the ionic polymer includes any one or a combination of at least two of epsilon-polylysine, polyethyleneimine hydrochloride, polyallylamine hydrochloride, polyquaternary ammonium salt-10 or cationic guar gum. The application uses ultrasonic waves as an external remote driving signal to non-invasively and painlessly activate the piezoelectric ionic effect of the hydrogel, generate detectable periodic voltage and current signals in the hydrogel, and has excellent treatment effect on acne and infected wound repair.

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.

The invention belongs to the technical field of gel electrolytes, and particularly relates to an intrinsic flame-retardant gel polymer electrolyte, a preparation method thereof and a battery. The intrinsic flame-retardant gel polymer electrolyte comprises a flame-retardant polymer and an electrolyte, and the flame-retardant polymer comprises the following raw material components: diethyl vinyl phosphate, methyl methacrylate and polyethylene glycol dimethacrylate, diethyl vinyl phosphate is chemically bonded in a polymer network formed by cross-linking polymerization of methyl methacrylate and polyethylene glycol dimethacrylate through an in-situ thermal polymerization reaction, and the volume ratio of the dosage of methyl methacrylate to the dosage of polyethylene glycol dimethacrylate to the dosage of diethyl vinyl phosphate is (1-3): 1: 1. The electrolyte can inhibit a combustion chain reaction under extreme conditions without depending on an additional flame retardant additive, and can realize collaborative optimization of intrinsic flame retardant performance and electrochemical performance on the premise of not influencing an ion transmission channel of the electrolyte.

The application discloses a kind of carbon sequestration type concrete internal curing material based on NaX molecular sieve and preparation method thereof, belong to building material technical field.It is prepared by the following component raw materials by weight fraction: 15%~18% NaX molecular sieve, 8%~10% carboxymethyl cellulose, 6%~8% bagasse cellulose, 5%~10% polyvinyl alcohol, 24%~30% N-methylol acrylamide, 10%~15% maleic anhydride, 3%~4% xanthan gum, 2%~3% calcium silicate, 8%~10% pentaerythritol allyl ether, 10%~13% propylene glycol polyoxyethylene ether, 0.15%~0.2% glycerol dimethacrylate, 0.2%~0.4% triethylene glycol dimethacrylate, 0.3%~0.7% diallyl dimethyl ammonium chloride, 0.08%~0.5% ammonium sulfite, 1%~3% ammonia.The application develops a kind of concrete internal curing material with CO2 capture and storage function, not only presents good alkali absorption characteristics, improves the mechanical properties of concrete, simultaneously realizes carbon sequestration curing and carbon sequestration service in concrete internal curing process and service process, realizes the new building field carbon sequestration mode of CO2 capture-solidification-storage.

The invention discloses a gel polymer electrolyte membrane for a lithium battery as well as a preparation method and application thereof, and belongs to the field of polymer electrolyte. The preparation method provided by the invention comprises the following steps: putting amino-terminated polyethylene glycol and phthalic dicarboxaldehyde into inert gas to react to obtain a first prepolymer; adding tetraethylene glycol dimethacrylate and a photoinitiator into the first prepolymer, reacting to obtain a second prepolymer, adding lithium salt into the second prepolymer, and uniformly mixing to obtain precursor slurry; and carrying out film coating treatment on the precursor slurry, and sequentially carrying out ultraviolet curing treatment and standing treatment after film coating to obtain the gel polymer electrolyte membrane. According to the invention, a dynamic imine bond network is constructed through o-phthalaldehyde and double-end amino polyethylene glycol, a three-dimensional ion transmission channel is constructed by using an ether oxygen branch chain of tetraethylene glycol dimethacrylate, and self-repairing is realized by combining spontaneous reversible recombination of an imine bond under environmental humidity; and the high ionic conductivity of the polymer film is ensured to meet the high-frequency charging and discharging requirements.

The application belongs to the field of MOF functional films, and relates to a metal organic framework fiber film and application. The metal organic framework fiber film is prepared by a method comprising the following steps: dissolving polyacrylonitrile, tetra(4-tetrazolylphenyl)ethylene and ethylene glycol dimethyl methacrylate in a first organic solvent to obtain a spinning solution; electrospinning the spinning solution and vacuum drying to obtain a PAN / H4TTPE film; immersing the PAN / H4TTPE film in a methanol solution containing azobisdimethyl isopropyl cyanide and irradiating and cross-linking under a UV lamp; contacting the cross-linked PAN / H4TTPE film with a Cu(NO3)2.3H2O solution, then adding concentrated hydrochloric acid, and slowly shaking until the solution is yellow-green; and then sealing and heating to react to obtain a metal organic framework fiber film MOF / PAN. The MOF / PAN fiber film prepared by the application has the advantages of simple preparation method, low cost, good stability and removal effect, and easy recycling and reuse.

The application provides a collagen moisturizing soft hydrophilic contact lens and a preparation method thereof, and belongs to the technical field of soft hydrophilic contact lenses. The contact lens is prepared from HEMA, DMAA and MA as main base materials, and four types of functional components, namely, polydeoxyribonucleotide (PDRN), PEG400, sodium hyaluronate and chitosan derivative, are compounded. An initiator of azobisdimethylvaleronitrile and benzoyl peroxide and a crosslinking agent of ethylene glycol dimethacrylate and pentaerythritol tetraacrylate are compounded. The contact lens is prepared through segmented constant temperature polymerization and sufficient post-treatment and refining. The application simulates the moisturizing mechanism of collagen by constructing a three-dimensional deep water locking network through natural moisturizing components, and long-acting water locking and soothing eye dryness. The application greatly improves the ocular surface biocompatibility of the lens by relying on the biological activity components and low-toxicity mild formula, reduces the residual monomer toxicity, and has no eye irritation.

The invention discloses polymer microspheres and a preparation method thereof, a composite profile control agent and a water shutoff and profile control method, and belongs to the technical field of oil production engineering. The polymer microsphere comprises an inner core and a shell, the inner core is obtained by reacting a first monomer composition with a first cross-linking agent, the first monomer composition comprises at least one of acrylamide, acrylic acid, N-vinyl pyrrolidone, 2-acrylamido-2-methylpropanesulfonic acid and sodium p-styrenesulfonate, and the first cross-linking agent is at least one of N, N '-methylene bisacrylamide and tetraallyl ammonium chloride; the shell is obtained by reacting a second monomer composition with a second cross-linking agent, the second monomer composition comprises acrylamide, acrylic acid, methyl methacrylate and / or butyl acrylate, and the second cross-linking agent is at least one of polyethylene glycol diacrylate, polyethylene glycol dimethacrylate and polypropylene glycol diacrylate. The profile control agent formed by the polymer microspheres and the phenolic resin cross-linking agent has excellent temperature resistance and salt tolerance.

This invention discloses a magnetic molecularly imprinted polymer, its preparation method, and its applications. First, Fe3O4 nanoparticles are prepared via co-precipitation. Then, the Fe3O4 nanoparticles are surface-modified with tetraethyl orthosilicate and 3-(trimethoxysilyl)propyl methacrylate to obtain Fe3O4@SiO2@CH2=CH2 nanoparticles. Using these as the magnetic core of the molecularly imprinted polymer, hexabromocyclododecane is used as the template molecule, 4-vinylpyridine as the functional monomer, azobisisobutyronitrile as the initiator, ethylene glycol dimethacrylate as the crosslinking agent, and acetonitrile as the porogen, to prepare the magnetic molecularly imprinted polymer. The magnetic molecularly imprinted polymer prepared by this invention can rapidly separate hexabromocyclododecane under an external magnetic field with good specificity, exhibiting excellent adsorption and desorption effects. It has low preparation cost, can be recycled, and has good application prospects.

Disclosed herein is a solid-state composite polymer electrolyte membrane including a solid-state electrolyte layer and a cured electrolyte layer disposed thereon. The solid-state electrolyte layer includes poly(vinylidene fluoride-co-hexafluoropropylene), lithium bis(trifluoromethanesulfonyl)imide, succinonitrile, and aluminum-doped lithium lanthanum zirconium oxide that is present from 50 wt % to 80 wt % based on 100 wt % of the solid-state electrolyte layer. The first cured electrolyte layer is formed by subjecting a first composition including a first initiator and a first component that includes an acrylic material, lithium bis(trifluoromethanesulfonyl)imide and succinonitrile to a first polymerization reaction. The acrylic material is selected from ethoxylated trimethylolpropane triacrylate, poly(ethylene glycol) dimethacrylate, poly(ethylene glycol) methacrylate, and combinations thereof. An all-solid-state lithium ion battery including the solid-state composite polymer electrolyte membrane is also disclosed.

This invention relates to the field of coatings, and discloses a hydrophilic anti-fog transparent coating for a plastic substrate and its preparation method. The hydrophilic anti-fog transparent coating comprises the following raw materials: 40-80% linear acrylic copolymer, 0.1-2% active monomer, 0.05-0.2% photoinitiator, 0-0.5% defoamer, 0-0.5% leveling agent, and 20-60% solvent. The linear acrylic copolymer is copolymerized from acrylate soft monomers, hard monomers containing olefin bonds, and functional monomers; the functional monomers contain olefin bonds and hydrophilic groups; the active monomer is one or more of ethylene glycol diacrylate, ethylene glycol dimethacrylate, polyethylene glycol diacrylate, and butanediol diacrylate. The hydrophilic anti-fog coating of this invention not only has excellent anti-fog effect, but also good adhesion to the plastic substrate, and exhibits long-lasting water resistance, high temperature and humidity resistance, and high transparency.

The invention provides a preparation method of a modified perovskite thin film by blending and adding OPPEA (o-phenyl phenoxy ethyl acrylate) and DCGDMA (diethylene glycol dimethacrylate), and the method comprises the following steps: preparing a hole transport layer solution, a perovskite precursor solution, an isopropanol solution of phenethyl amine iodide and an anti-solvent solution, preparing a hole transport layer and a perovskite layer, and preparing the perovskite thin film. And after post-treatment, the OPPEA and DCGDMA blending addition modified perovskite thin film is finally obtained on the ITO conductive glass. The invention also provides an application for preparing the perovskite solar cell. The OPPEA and DCGDMA blended and added modified perovskite thin film prepared by the invention has humidity-resistant stability, illumination-resistant stability and good conductivity, and provides a foundation for industrial application and development of large-area perovskite solar cells.

The invention relates to the technical field of medical materials, and discloses a deep eutectic eutectoid gel coating with antibacterial, anti-adhesion and anti-demineralization functions as well as a preparation method and application of the deep eutectic eutectoid gel coating. The preparation method comprises the following steps: preparing a deep eutectic solvent by mixing SBMA and glycerol or glycerol and gallic acid; the preparation method comprises the following steps: adding a cross-linking agent ethylene glycol dimethacrylate and an initiator into a deep eutectic solvent, uniformly mixing, coating on a PETG substrate, and curing under the action of the initiator to form a continuous and compact deep eutectic eutectoid gel coating. A dense hydrogen bond network is constructed through a deep eutectic system formed by SBMA and glycerin, the hydrophilicity and lubricity of the coating are remarkably improved, adhesion of bacteria and protein in the oral cavity can be effectively reduced, cleanliness of the surface of the appliance is kept, a feasible and efficient technical path is provided for long-term biological functionalization of the invisible appliance, and the application prospect is wide. Meanwhile, the coating can be extensively applied to the fields of other oral medical instruments and biological functional coatings.