1178 results about "Acrylate ester" patented technology

This invention relates to the field of packaging film technology and provides a low-temperature polyolefin packaging film and its preparation method. The packaging film comprises a three-layer co-extruded structure consisting of an outer layer, a middle layer, and an inner layer. The components of each layer are as follows: Inner layer: metallocene polyolefin, high-performance polypropylene, modified lignin nanofibers, and erucamide / silica composite microspheres; Middle layer: PCR, modified nano-kaolinite, and trimethylolpropane triacrylate; Outer layer: PCR, modified tourmaline nanotubes, benzoyl peroxide microcapsules, and polydopamine-coated chitosan. This invention uses PCR, which is more energy-efficient and environmentally friendly. The addition of modified lignin nanofibers to the inner layer improves tensile strength; the addition of modified nano-kaolinite to the middle layer improves thermal shrinkage; the addition of modified tourmaline nanotubes to the outer layer lowers the crosslinking reaction initiation temperature and improves shrinkage; and the addition of polydopamine-coated chitosan allows for reversible recombination upon damage, improving puncture strength.

The present invention pertains to a binder for a secondary battery positive electrode, to a method of preparation of said electrode and to its use in a secondary battery. The invention also relates to the secondary batteries manufactured by incorporating said electrode.

The application discloses a preparation method of a partially fluorinated solid electrolyte and a lithium ion battery, and belongs to the field of electrode materials. The application proposes a partial fluorination strategy, and finds that by changing the ratio of monofunctional polymerizable acrylate monomers and bifunctional polymerizable acrylate monomers in a polymerization precursor liquid and the ratio of polymerizable fluorinated acrylate monomers in a polymerizable acrylate monomer composition, the mechanical properties and ionic conductivity of the finally obtained solid electrolyte can be controlled. The partially fluorinated solid electrolyte prepared by the preparation method provided by the application is stable and reliable, has higher safety, and has excellent mechanical properties and higher ionic conductivity. The partially fluorinated solid electrolyte provided by the application can be used for preparing a lithium ion battery with better safety performance and more excellent electrochemical performance.

The application discloses a preparation method and application method of a high-performance optical fiber coating modified by polymer grafted carbon nanotubes, and the preparation method comprises the following steps: pre-treating carbon nanotubes to obtain brominated carbon nanotubes; performing grafting treatment on the brominated carbon nanotubes through photocatalytic atom transfer radical polymerization to obtain polymer grafted functionalized carbon nanotubes; and mixing the polymer grafted functionalized carbon nanotubes with a prepolymer, an active diluent and a photoinitiator to obtain the required high-performance optical fiber coating. The carbon nanotubes are grafted with polyacrylate polymer chains on the surface, which can improve the dispersibility of the carbon nanotubes in the coating system, ensure the long-term stability and functional effectiveness of the carbon nanotubes in the coating, overcome the problems of poor compatibility and uneven dispersion of existing carbon-based composite coatings, improve the mechanical properties and thermal stability of the optical fiber coating, enhance the bonding strength between the coating and the optical fiber, and provide a new perspective for the preparation of high-performance optical fiber coatings.

The application relates to the technical field of functional films for semiconductor material processing, and discloses a low-residual, heat-resistant and anti-static semiconductor wafer cutting protection film. The protection film comprises a functional adhesive layer arranged on the surface of a base film, and the functional adhesive layer is composed of a synergistically modified polymer matrix, an organic small-molecule interface regulator, a heat-resistant toughening agent, an anti-static auxiliary agent, a residual inhibiting auxiliary agent and a rheological adjusting agent. The synergistically modified polymer matrix is formed by synergistic modification of an acrylate main chain polymer, 2-aminoethyl methacrylate, p-benzene dicarboxaldehyde, tannic acid and an amino-terminated polydimethylsiloxane, and the organic small-molecule interface regulator is 2,5-dihydroxybenzoic acid. The preparation method is simple and controllable, and is suitable for the semiconductor wafer cutting process with high requirements for cleanliness, heat resistance and static control.

This invention relates to the field of thin-film optics, and particularly to a protective film. To address the problem of light stabilizer precipitation at high concentrations, this invention provides a protective film. The protective film sequentially comprises an anti-glare film, an adhesive layer, and a barrier film; the adhesive layer is formed from an adhesive layer coating liquid; the adhesive layer coating liquid comprises an acrylate copolymer, a light stabilizer, an isocyanate curing agent, and a solvent; the light stabilizer has isocyanate groups. The light stabilizer in the adhesive layer of the protective film will not precipitate or migrate.

The application discloses a kind of magnetically responsive hydrogel optical fiber and its preparation and application, belong to medical biomaterial field.The optical fiber includes from inside to outside: polyethylene glycol diacrylate and acrylamide photocrosslinking light transmission core layer;Calcium alginate low refractive index skin layer;Doped nano-magnetic response layer of ferriferrous oxide;And polydopamine grafting polyvinylpyrrolidone lubricating layer.It is prepared by coaxial extrusion and light / calcium step-by-step crosslinking.The structure realizes the spatial isolation and anti-interference of light transmission and magnetic drive, has low background light loss and anti-bending stability, has biomechanics matching, ultra-low friction and magnetic field accurate active navigation ability, solves the pain point that extremely soft optical fiber is difficult to directional intervention.Suitable for deep tissue precise photothermal therapy, in vivo continuous optical sensing and minimally invasive diagnosis and treatment integration and other frontier medical fields.

This invention belongs to the field of UV-curable optical materials technology, specifically relating to a UV transfer optical adhesive, its preparation method, and its applications. The UV transfer optical adhesive comprises the following components in parts by weight: 25-45 parts of inorganic nano-modified polyurethane acrylate oligomer, 20-40 parts of silicone-modified acrylate oligomer, 25-50 parts of high-transparency acrylate monomer, 5-15 parts of easy-to-release UV-curable resin, 2-5 parts of photoinitiator, 0.2-1 part of leveling agent, and 0.2-1 part of defoamer. This invention solves the problems of poor release properties, high curing shrinkage, poor precision in replicating microstructures, and insufficient resistance to damp heat and yellowing in existing UV transfer adhesives, meeting the stringent requirements of UV optical adhesives in high-end fields such as optical brightening films, automotive displays, and new energy optical devices.

The present invention relates to a method for manufacturing a laminated lens comprising the steps of: A) mixing a dye comprising at least one tetraazaporphyrin compound and at least one urethane-acrylate glue to form an adhesive dye dispersion, said dye being mixed with said glue without being previously dispersed in an organic solvent; B) laminating together a first glass cap and a second glass cap by means of at least one adhesive layer comprising said adhesive dye dispersion, said adhesive layer being interposed between said two caps.

This invention discloses the application of a self-healing epoxy-acrylate interpenetrating polymer network anti-corrosion coating in a seawater environment, belonging to the technical field of marine anti-corrosion coating materials. The self-healing epoxy-acrylate interpenetrating polymer network anti-corrosion coating includes a coating matrix and hydrophobic self-healing microcapsules uniformly dispersed within the coating matrix. The coating matrix is ​​formed by interpenetrating polymerization of epoxy resin, acrylate, and a curing agent. The hydrophobic self-healing microcapsules have a core-shell structure, including a core and a wall. The core is an oil-based healing agent, and the wall is a hydrophobic polymer material. This invention achieves cross-linking polymerization and curing through the interaction of the oil-based healing agent with dissolved oxygen in the water, without relying on an additional curing agent, greatly reducing the interference of the seawater environment on the curing reaction. The synergistic system of the hydrophobic self-healing microcapsules and the coating matrix constructed in this invention achieves the integration of in-situ self-healing and long-term anti-corrosion in underwater environments.

This invention discloses a PCB dry film and its preparation method, belonging to the field of PCB manufacturing materials. The dry film comprises a polyester carrier film, a functional resin layer, and a polyethylene protective film. The resin layer polymer composition contains, by weight,: (A) 45-65 parts of a base binder resin; (B) 20-40 parts of a crosslinkable monomer; (C) 28 parts of a crosslinking initiator; and (D) 0.5-5 parts of additives. Wherein (A) is a multifunctional modified acrylate copolymer, with main or side chain bonds containing nitrogen or sulfur heterocyclic groups, olefinic unsaturated crosslinking groups, free carboxyl groups, and polylactic acid ester or polycaprolactone microblocks, a weight-average molecular weight of 30,000-80,000, and an acid value of 120-180 mgKOH / g. This invention ensures that the dry film has excellent developability, thereby meeting the manufacturing requirements of high-quality printed circuit boards.

The present application relates to a kind of water-based sprayable self-drying type acrylate adhesive and its preparation method, belong to polymer adhesive technical field.First, the core layer emulsion formed by hard monomer and multi-functional crosslinking monomer is prepared;Then drop the shell monomer including soft monomer, hydrophilic functional monomer and the functional monomer containing beta-dicarbonyl structure on it, form core-shell structure emulsion;Finally, by pH adjustment, add rheological modifier, film-forming aid and the coordination crosslinking agent containing polyvalent metal ions are prepared.The present application combines core-shell structure with beta-dicarbonyl / metal ion room temperature coordination crosslinking system, wherein the core layer provides rigid support, shell layer promotes rapid film formation, functional monomer and metal ion form strong coordination bond network after moisture volatilization.At the same time, self-made bifunctional monomer containing phosphate and silane significantly improves the universal adhesion of adhesive to different substrates.The prepared adhesive has excellent spray atomization, self-drying, high bonding strength and stability.

The present application relates to a kind of water-based paint for leather surface waterproof, belong to coating technical field.The water-based paint is made of the following components: 80 parts polyether sulfone modified polyurethane-acrylate composite resin dispersion, 5 parts crosslinking agent polycarbodiimide, 10 parts anti-adhesive polydimethylsiloxane, 10 parts cosolvent dipropylene glycol methyl ether, 10 parts nano reinforcing material, 1.5 parts amino-terminated hyperbranched polyamide.Core resin dispersion is prepared by grafting onto polyurethane-acrylate skeleton through sulfonated polyether sulfone chemistry.The present application is prepared by unique resin chemical modification and nanocomposite technology, so that the obtained coating has excellent waterproofness, high adhesion, good mechanical strength and anti-aging property, especially suitable for high requirements such as automotive interior, furniture and other leather surface treatment, while meeting environmental protection requirements.

An antireflection substrate includes a resin substrate, and an underlying layer, a hard coat layer, an antireflection layer, and a cover layer which are provided on the resin substrate in this order. The underlying layer is formed of a cured material of a hexafunctional or higher functional urethane (meth)acrylate compound (A1), the hard coat layer contains a cured material of a urethane (meth)acrylate compound (A) containing a trifunctional or less functional urethane (meth)acrylate compound (A2), the antireflection layer includes an intermediate refractive index layer having a refractive index of 1.50 to 1.75, a high refractive index layer having a refractive index of 1.60 to 2.00, and a low refractive index layer having a refractive index of 1.25 to 1.40 in this order from the hard coat layer side, the refractive index of the high refractive index layer being higher than that of the intermediate refractive index layer, and the intermediate refractive index layer, the high refractive index layer, and the low refractive index layer all containing a cured material of an organic / inorganic composite compound (B), and the cover layer includes a cured material of an organic / inorganic composite compound (B). The antireflection substrate having high antireflection performance and excellent elongation characteristics is suitable as a film for film insert molding.

The application discloses a preparation process of high-adhesion EB electron beam curing display cover plate ink, and relates to the technical field of ink preparation. The process uses high-functionality acrylate monomers, polyurethane acrylate prepolymers and an interface coupling agent as main components, realizes excellent adhesion and abrasion resistance to glass and plastic substrates through electron beam irradiation and rapid curing, and meets the requirement of high light transmittance. The process overcomes the problems of insufficient adhesion and high residual monomer of the existing EB curing ink, improves the comprehensive performance of the EB curing ink, and is suitable for the field of high-end display cover plate printing and manufacturing.

The present application relates to a kind of diamond polishing pad and its preparation method, belong to the technical field of polishing pad.A kind of diamond polishing pad is by grinding base and the grinding layer of being arranged in the surface of grinding base, the grinding layer is by several hexagonal projections, the hexagonal projection is made of grinding material, the grinding material includes the following components: epoxy modified acrylate, polyurethane, modified filler, diamond micro powder, curing agent, silane coupling agent and dispersing agent.The grinding material prepared by the present application strengthens the mechanical properties of matrix by modified filler, gives cutting ability by diamond micro powder, cooperatively improves the hardness, wear resistance and interface bonding stability of polishing pad, guarantees the precision, efficiency of polishing process and the long service life of polishing pad.

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 application relates to the technical field of paint manufacturing, in particular to a method for preparing a water-based hydroxyl acrylate latex and a two-component paint. The preparation method comprises the following steps: performing emulsification treatment on part of acrylate monomers, hydroxyl acrylate monomers, hyperbranched polyester polyol, carboxyl monomers, a crosslinking agent, part of an emulsifier and part of water to obtain a pre-emulsified solution; performing a first polymerization reaction on the remaining acrylate monomers, the remaining emulsifier, part of an initiator and the remaining water to generate a seed emulsion; gradually adding the pre-emulsified solution and the remaining initiator into the seed emulsion to perform a second polymerization reaction, and then adding an additive to perform post-treatment to obtain the water-based hydroxyl acrylate latex. The water-based hydroxyl acrylate latex is prepared by using a free radical emulsion polymerization method and a seed emulsion polymerization process, has low VOC content, is green and environmentally friendly, has high water resistance, strong salt mist resistance, high adhesion to a substrate to be coated, good quick-drying performance and good pigment wrapping performance, and can be used for preparing a two-component paint.

The invention relates to the technical field of copolymerization materials and preparation, and discloses a copolymer and a preparation method thereof as well as a cross-linked elastomer material and a preparation method and application thereof, the copolymer comprises three structural units A, B and C. A is from a structural unit of an ethylene monomer, B is from a structural unit of an alpha-olefin monomer, and C is from a structural unit of an acrylate monomer. And a crosslinking structure from a crosslinking monomer; the copolymer has the following structure: A and C form a-A-C-A-C-alternating structure, and a part of position of A is replaced by B; wherein on the basis of the total molar content of the copolymer, the content of the structural unit A is 20-60 mol%, the content of the structural unit B is 5-30 mol%, and the content of the structural unit C is 30-65 mol%. The cross-linked elastomer material prepared by cross-linking the copolymer provided by the invention has the characteristics of low temperature resistance, oil resistance and high mechanical strength.

A unit cell includes a separator and an electrode, which are alternately laminated by a predetermined number. The unit cell is configured such that: the unit cell is laminated in the order of a lower separator, any one electrode of an anode or a cathode, an upper separator, and the other one electrode of the anode or the cathode, wherein at least one surface of the electrode and the separator is applied with an adhesive to adhere the electrode and the separator or the lower separator and the upper separator. The adhesive contains an adhesive composition comprising a copolymer and a rosin ester-based additive, the copolymer contains 60.1 to 79.9% by weight of two or more kinds of alkyl (meth)acrylate-based repeating units (A), and 20.1 to 39.9% by weight of (meth)acrylate-based repeating unit (B) having a hydroxyl group at its end.

This invention discloses a microRNA-responsive 1,2-dioxane-based chemiluminescent compound, its dual-probe system, kit, synthesis method, and applications. The compound's core is an o-acrylate-substituted phenoxyadamantane-1,2-dioxane, with the phenolic hydroxyl group protected by an azide benzyl group. The two-component probe system constructed based on this compound comprises an azide-modified first probe and a phosphine-modified second probe, each complementary to different segments of the target microRNA. Hybridization brings the two probes closer, triggering a Staudinger reaction to remove the protecting group and activate the chemiluminescent signal. This probe system requires no enzyme amplification or nucleic acid extraction, achieves a detection limit of 1.37 fM, and a signal-to-noise ratio as high as 157-fold. It can be successfully used for real-time imaging of endogenous microRNA-21 in live cells, showing broad application prospects in early tumor screening, auxiliary diagnosis, and prognostic assessment.

This application discloses a light-resistant and scratch-resistant gravure inkjet printing ink and its preparation method, belonging to the field of novel ink technology. The light-resistant and scratch-resistant gravure inkjet printing ink comprises the following raw materials in parts by weight: 38-45 parts of fluorosilicone modified polyacrylate emulsion, 7-11 parts of modified composite powder, 6-9 parts of nano carbon black, 1.2-1.8 parts of dispersant, 0.6-1.2 parts of leveling agent, 0.3-0.6 parts of defoamer, 1.5-2 parts of abrasion-resistant agent, 0.4-0.8 parts of AMP-95, and 25-35 parts of deionized water. This application limits the composition and weight of the inkjet ink, and uses fluorosilicone modified polyacrylate emulsion as the film-forming main body to endow the ink with low surface energy, high water resistance and excellent adhesion to film substrates; combined with modified composite powder, it effectively improves the dispersibility of nanoparticles, avoids agglomeration and clogging, and significantly improves the sun resistance and anti-aging performance. Overall, it takes into account high sun resistance, high scratch resistance, strong adhesion, environmental protection and low VOC, and is highly suitable for high-speed gravure inline inkjet printing scenarios.

The application discloses a preparation method of a self-emulsifying type wet spinning raw silk oil agent and a preparation method of high-uniformity carbon fibers, and belongs to the technical field of carbon fibers. In the application, polyglycerol and epsilon-caprolactone are catalytically prepared into PG-PCL; then the PG-PCL is reacted with acrylate to obtain acrylated PG-PCL; finally, the PG-PCL, the acrylated PG-PCL and perfluoropolyether acrylate are uniformly dissolved in acetone; then carboxylated cellulose nanocrystals and iron phthalocyanine are added and high-speed shearing emulsification is carried out, and water is gradually added to form a nanoemulsion; and the high-uniformity carbon fibers are obtained by combining a low-temperature preparation method of the carbon fibers. The method synchronously solves the problems of emulsion stability, fiber uniformity and carbonization compatibility, shortens a production cycle, is suitable for high-end fields such as aerospace and new energy vehicles, and has the advantages of high performance and green manufacturing.

Disclosed in the present invention are an acrylate emulsion for a polymer cement waterproof coating, a raw material composition thereof, a preparation method therefor, and a use thereof. The raw material composition comprises the following components in parts by weight: 3-4.5 parts of sodium dodecyl diphenyl ether disulfonate, 1.5-2.5 parts of acrylamide, 2-4 parts of fatty alcohol polyoxyethylene ether, 2-4 parts of polyethylene glycol dimethacrylate, 1-2 parts of acrylic acid, 0.5-1 part of titanium triisostearoylisopropoxide, 40-60 parts of acrylate, 0.5-1 part of sodium persulfate, 50-60 parts of deionized water, and 0.1-0.3 parts of a 10% sodium hydroxide solution. The acrylate emulsion prepared by the present invention has excellent performance and good dispersibility, and a polymer cement waterproof coating prepared by using the emulsion of the present invention has lower viscosity and better workability.

This invention relates to a gel electrolyte composition and its application. The gel electrolyte composition comprises acrylate monomers, polyethylene oxide, a bifunctional alkoxysilane crosslinking agent, an initiator, a lithium salt, and a solvent, wherein the bifunctional alkoxysilane crosslinking agent is an alkoxysilane with terminal unsaturated bonds. The gel electrolyte composition of this invention has extremely low viscosity, enabling "normal electrolyte injection" indistinguishable from liquid electrolytes, perfectly wetting thick electrodes, seamlessly integrating with existing battery production lines, and showing excellent industrialization prospects.

The present invention concerns an aqueous radiation-curable polyurethane acrylate dispersion comprising: a) a polyurethane acrylate polymer which is the reaction product of: i) from 10 wt.% to 50 wt.% of an isocyanate monomer; ii) from 5 wt.% to 20 wt.% of a polyunsaturated monomer or polyunsaturated oligomer, which has an iodine value of at least 50 g of I2 / 100g of respectively polyunsaturated monomer or polyunsaturated oligomer, and at least one hydroxyl functional group; iii) from 10 wt.% to 55 wt.% of an acrylate functional oligomer which contains at least one (meth)acrylate group and at least one isocyanate-reactive group; and iv) from 1 wt.% to 10 wt. % of a dispersing agent which contains at least one isocyanate-reactive group and at least one group having a hydrophilizing action; dispersed in b) an aqueous continuous phase; and a coating composition and kit-of-parts with a drying agent; and a coated substrate.

The present application relates to the technical field of external use patch, disclose a kind of neck shoulder waist leg pain health care patch and its preparation method, the health care patch includes backing layer, ointment layer and anti-adhesion release layer;Ointment layer raw material includes: traditional Chinese medicine extract flow leaching paste, L- (+) -tartaric acid, PVP K30, PEG-400, ternary eutectic solvent, polyacrylate pressure sensitive adhesive matrix and ultrafine medicinal powder.Preparation, after flow leaching paste, tartaric acid etc. are mixed, gel precursor is formed by vacuum dewatering and dealcoholization, swelling is added again with eutectic solvent, and then mixed with pressure sensitive adhesive matrix and medicinal powder high shear, finally coating solidification.The present application constructs physical crosslinking gel network in colloid interior and promotes effective component acid-base salt formation, effectively avoids polar component crystallization precipitation, reduces the skin irritation caused by drug burst release, simultaneously improves the cohesion of ointment, realizes long-acting smooth drug release.

The present application provides a kind of ship hull barnacle protection net.The support layer of the protection net is nanofiber membrane with micron pit array formed by laser etching, the inside is attached to the adhesive made of modified dopamine-acrylate copolymer, nano-silica, calcium alginate microspheres, chitosan, chitin nanofiber, lanolin and antioxidant, and the outside is compounded with stainless steel wire mesh.The present application realizes long-term inhibition of barnacles through the physical barrier of the hydrophobic support layer and the synergistic effect of the antifouling components in the adhesive without adding toxic antifouling agents, and has the characteristics of firm bonding, excellent mechanical properties, environmental protection and non-toxicity, effectively solves the problems of poor antifouling effect, insufficient bonding reliability and poor environmental protection of existing protection materials, and is suitable for barnacle protection of underwater parts of ship hull.

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.