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578 results about "Acrylic monomers" patented technology

Acrylic Monomers. Acrylics are probably the most versatile family of monomers. They can be used to prepare polymers with rigid, flexible, ionic, nonionic, hydrophobic, or hydrophilic properties. The monomers are classified into 9 groups based on composition and functionality. They are polymerized primarily by a free radical process,...

Holographic polymer dispersed liquid crystal composition, holographic grating and preparation method

The invention belongs to the technical field of optical materials, and discloses a holographic polymer dispersed liquid crystal composition, a holographic grating and a preparation method. The composition comprises the following components in parts by mass: 0.5-1.5 parts of a photoinitiator, 2-5 parts of a co-initiator, 15-20 parts of a first monomer, 15-20 parts of a second monomer, 10-15 parts of a third monomer, 10-15 parts of a solvent and 10-20 parts of mixed liquid crystal. Wherein the first monomer is a monofunctional acrylic monomer, the second monomer is a bifunctional acrylic monomer, the third monomer is a polyfunctional acrylic monomer, the mixed liquid crystal comprises 10-25 wt% of a monomer liquid crystal and 75-90 wt% of a nematic liquid crystal, and the monomer liquid crystal contains fluorine as a benzene ring substituent and contains cyano or isothiocyano as an end group. Through cooperation of the monomer liquid crystal and the nematic liquid crystal in the mixed liquid crystal and cooperation of fluorine atoms and cyano / isothiocyano groups in the monomer liquid crystal, the holographic grating prepared from the composition has the characteristics of low haze and high diffraction efficiency, and the grating can be thinner, so that the requirements of light weight and clearness of AR glasses can be met.
Owner:NIKA OPTICS (TIANJIN) CO LTD

Thermal response self-ceramic fireproof coating and preparation method thereof

The invention provides a thermal response self-ceramization fireproof coating and a preparation method thereof. The thermal response self-ceramization fireproof coating is prepared from the following raw materials in parts by mass: 3 to 10 parts of acrylic monomer, 3 to 10 parts of organic sulfonate, 1 to 4 parts of silane coupling agent, 0.5 to 3 parts of silicate ester, 4 to 6 parts of ceramic precursor, 3 to 6 parts of fluxing agent and 0.05 to 0.4 part of initiator. The fluxing agent comprises a component A and a component B, the component A is one of boric oxide, zinc borate or low-melting-point glass powder, and the component B is one of phosphorus pentoxide and ammonium polyphosphate. The silane coupling agent can be copolymerized with an acrylic monomer to construct a C-C main chain, the C-C main chain and silicate ester are subjected to hydrolytic condensation to form a Si-O-Si three-dimensional network, a chemical cross-linked skeleton is formed, and the chemical cross-linked skeleton can generate silicon dioxide at high temperature to participate in a ceramization reaction; the ceramic precursor and silicate ester can form a strong physical cross-linking effect, so that the fireproof coating with a chemical and physical double-cross-linked network can be formed, and the fireproof coating has excellent mechanical property and machinability at normal temperature.
Owner:STATE GRID ANHUI ELECTRIC POWER CO LTD ELECTRIC POWER SCI RES INST

Polyacrylate-carboxylated chitosan interpenetrating network hydrophobic modified hydrogel as well as preparation method and application thereof

The invention provides polyacrylic acid-carboxylated chitosan interpenetrating network hydrophobic modified hydrogel as well as a preparation method and application thereof, and belongs to the technical field of wastewater treatment. The preparation method comprises the following steps: mixing an acrylic monomer, a hydrophilic acrylate monomer, an etherification type acrylamide monomer, an allyl quaternary ammonium salt type hydrophobic monomer, a crosslinking monomer and water, then mixing with a chitosan compound, and adjusting the pH value to obtain a reaction solution; and mixing the reaction liquid and a photoinitiator, then carrying out polymerization reaction, and sequentially pre-freezing and freeze-drying the obtained polymer hydrogel. Through multiple synergistic effects of photo-initiated rapid polymerization, amphiphilic hydrophobic modification, etherification auxiliary crosslinking and a chitosan compound interpenetrating network, the structural stability, complexing efficiency, industrial applicability and heavy metal adsorption performance are comprehensively improved; the adsorption rate and capacity of the hydrogel disclosed by the invention are obviously superior to those of the existing similar polyacrylic acid-based or chitosan-based hydrogel.
Owner:SANYA INST OF OCEANOGRAPHY OCEAN UNIV OF CHINA +2

Modified acrylate emulsion adhesive as well as preparation method and application thereof

The invention discloses a modified acrylate emulsion adhesive as well as a preparation method and application thereof, and belongs to the technical field of lithium ion batteries. The modified acrylate emulsion adhesive is prepared by adopting a semi-continuous emulsion polymerization method. The water-based adhesive is prepared from the following raw materials in parts by weight: 5-20 parts of water-based polyolefin, 50-200 parts of deionized water, 0.5-4 parts of an emulsifier, 20-50 parts of an acrylate monomer, 1-10 parts of an acrylic monomer, 0.2-1.5 parts of an initiator, 0-50 parts of styrene, 0.1-2 parts of a cross-linking agent and 0.5-15 parts of a neutralizer. The modified acrylate emulsion adhesive is obtained by taking the water-based polyolefin as a core structure of the emulsion and taking the acrylate polymer as a shell structure of the emulsion, and the adhesive has good compatibility with a polyolefin diaphragm and an electrolyte, so that the synergism of a lithium ion battery negative electrode, the electrolyte and the diaphragm is promoted; further, the electrochemical performance of the lithium ion battery is improved.
Owner:FUJIAN INST OF RES ON THE STRUCTURE OF MATTER CHINESE ACAD OF SCI

Wide-color-gamut yellow dye for color filter, synthetic method of wide-color-gamut yellow dye, green photoresist and preparation method of green photoresist

The invention belongs to the technical field of photoresists, and relates to a wide-color-gamut yellow dye for a color filter, a synthesis method of the wide-color-gamut yellow dye, a green photoresist and a preparation method of the green photoresist. The green photoresist is prepared from the following raw materials in parts by weight: 4 to 8 parts of green pigment, 3 to 8 parts of resin, 3 to 10 parts of acrylic monomer, 0.5 to 2 parts of photoinitiator, 0.2 to 0.4 part of auxiliary agent and 75 to 85 parts of organic solvent. The synthesized yellow dye has good photoresist system adaptability and high molar absorption coefficient, and meanwhile, due to the fact that acrylic acid is grafted, acrylic acid on the yellow dye has carbon-carbon double bonds, under the action of a photoinitiator, after bond breaking, the yellow dye can react with resin or an acrylic monomer and is cured in a film, and the yellow dye has good chemical resistance.
Owner:XIAN SMART MATERIALS CO LTD

Negative electrode binder composition, negative electrode binder and preparation method therefor, negative electrode sheet, battery cell and battery

Disclosed are a negative electrode binder composition, a negative electrode binder and a preparation method therefor, a negative electrode sheet, a battery cell, and a battery. The negative electrode binder composition comprises the following components: an acrylic monomer, a hydroxydopamine monomer, a long-chain alkyl (meth) acrylate monomer, and a vinyl siloxane monomer.
Owner:BYD CO LTD

Anode slurry dispersing, compacting and anti-cracking auxiliary agent for lithium battery and preparation method thereof

PendingCN121394408ACell electrodesSecondary cellsElectrical batteryHydrazine compound
The invention relates to the technical field of lithium ion battery assistants, in particular to an anode slurry dispersing, compacting and anti-cracking assistant for a lithium battery and a preparation method of the anode slurry dispersing, compacting and anti-cracking assistant. The anti-cracking aid is prepared from the following raw materials in parts by mass: 20-80 parts of a special polymer, 10-30 parts of a wetting agent, 10-30 parts of a plasticizer and 10-100 parts of a solvent, wherein the preparation raw materials of the special polymer comprise a vinyl monomer, an acrylic monomer, a diene monomer and an initiator; the wetting agent comprises the following raw materials: an amine compound and a hydrazine compound; and the plasticizer is polyether phosphate. When the additive is used for preparing the lithium battery positive electrode slurry, the slurry is uniformly dispersed and low in viscosity, the use of solvents can be reduced, the production process is shortened, and the actual use effect is excellent.
Owner:ANHUI PULITONG NEW MATERIAL TECH CO LTD

Production process of high-weather-resistance resin

The invention discloses a high-weather-resistance resin production process, and belongs to the technical field of high polymer material synthesis. The production process comprises the following steps: preparing an acrylic monomer, an emulsifier and an initiator according to a specific ratio, forming a pre-emulsion, performing staged normal-pressure polymerization, controlling the dropwise adding time and temperature, reacting, and performing condensation reflux and acid-base adsorption to obtain the product. Wastewater recycling needs to collect washing wastewater of the reaction kettle, the wastewater is subjected to multi-stage filtration, flocculent precipitation and precise filtration, the water quality is detected, and qualified water is reused for next-batch production. By optimizing the monomer ratio and the polymerization process, the weather resistance of the acrylic resin is remarkably improved, and the requirements of high-end coatings are met; meanwhile, through systematic wastewater recycling, fresh water consumption and wastewater discharge are greatly reduced, the resource utilization rate is increased, and environmental pollution is reduced. The technical treatment process is closely linked with production, the cost is low, and the method is suitable for large-scale continuous production and has both economic and environmental benefits.
Owner:江西瓦克新材料科技有限公司

High-molecular pre-crosslinked gel particle blocking agent suitable for carbon dioxide flooding oil reservoir and preparation method of high-molecular pre-crosslinked gel particle blocking agent

The invention belongs to the technical field of oil field gas channeling plugging agents, and discloses a high-molecular pre-crosslinked gel particle plugging agent suitable for a carbon dioxide drive oil reservoir and a preparation method of the high-molecular pre-crosslinked gel particle plugging agent. The raw materials comprise an acrylamide monomer, sodium bentonite, an acrylic monomer, an acid-resistant functional monomer, a temperature-resistant and salt-resistant functional monomer, a first cross-linking agent, a second cross-linking agent, an initiator, an inorganic reinforcing agent, an antioxidant and water. The prepared acid-resistant gel particle is good in temperature resistance, salt resistance and acid resistance and long in effective period of action, the viscosity of a system is increased after the particle swells for a certain time, the plugging capacity is enhanced, and the acid-resistant gel particle can be used as an excellent CO2 drive reservoir gas channeling plugging agent and is used for plugging a heterogeneous formation with developed micro-cracks.
Owner:PETROCHINA CO LTD

Gallium-based liquid metal conductive hydrogel as well as preparation method and application thereof

The invention discloses a gallium-based liquid metal conductive hydrogel and a preparation method and application thereof.The method includes the steps that firstly, liquid metal gallium is modified through an amphiphilic block copolymer, so that the liquid metal gallium can be stably dispersed in a hydrogel precursor solution, hydroxyl radicals are generated through the liquid metal gallium, and the hydrogel precursor solution is formed; in-situ polymerization of an ionic liquid monomer and an acrylic acid monomer is further initiated to form a second network in the dual-network hydrogel, and the second network cooperates with a borate bond cross-linked polyvinyl alcohol first network to prepare the liquid metal-based conductive hydrogel with excellent conductivity, good mechanical properties and relatively strong interface adhesion. The problems that existing conductive hydrogel is poor in conductive filler compatibility, poor in liquid metal interface stability and the like are solved.
Owner:HUNAN UNIV OF TECH

Nano modified clay compounded hollow micro powder and preparation method thereof

The invention provides nano-modified clay compounded hollow micro-powder and a preparation method thereof. The nano-modified clay compounded hollow micro-powder comprises the following components in percentage by mass: 55%-68% of nano-modified clay, 32%-45% of hollow micro-powder, 0.8%-4% of a functional aid and 0.1%-2% of a coupling enhancer, wherein the nano modified clay is obtained by performing dual modification treatment on natural clay, and the dual modification comprises the following steps: performing intercalation modification, adopting a composite modifier of a silane coupling agent and a titanate coupling agent, and stirring and reacting for 3-6 hours at 60-85 DEG C, the total dosage of the modifier is 3-8% of the mass of the clay; on the basis of intercalation modification, an acrylic monomer is introduced for free radical graft polymerization, and the grafting rate is 5-15%. According to the invention, through gradient compounding of the nano modified clay and the core-shell hollow micro-powder and the synergistic effect of intercalation modification and surface grafting modification, the interlayer spacing of the clay is enlarged to 1.85 nm or more, the specific surface area is increased to 120 m < 2 > / kg, and the interface bonding force with a polymer matrix is significantly enhanced.
Owner:GUANGXI FANGCHENGGANG HENGTAI TECH DEV CO LTD

Corrosion and scale inhibition integrated fracturing fluid

The application discloses a kind of corrosion and scale integrated fracturing fluid, and relates to fracturing fluid technical field.The fracturing fluid includes thickening agent, crosslinking agent, composite corrosion and scale inhibitor and water;The composite corrosion and scale inhibitor includes the first component and the second component with mass ratio of 3:0.5~1, wherein the first component is prepared by the reaction of polyethyleneimine, long-chain acrylate monomer, acrylic acid monomer and hydroxyethyl acrylate monomer, and the second component is prepared by imidazole compound containing a primary amine and glyoxylic acid.The corrosion and scale integrated fracturing fluid of the application has good compatibility between components, and at the same time, it has good corrosion and scale inhibition and anti-sloughing performance.
Owner:XINJIANG RAND WEIYE OILFIELD SERVICE CO LTD +1

Method for in-situ rapid growth of double-network hydrogel coating on surface of substrate and application of double-network hydrogel coating

PendingCN121288031ASurgeryCoatingsRuthenium CompoundsIn situ polymerization
The invention discloses a method for in-situ rapid growth of a dual-network hydrogel coating on the surface of a base material by a one-step method, which comprises the following steps: putting the base material with an adhesion initiation layer on the surface into a hydrogel precursor solution, and carrying out in-situ polymerization for 0.1-10 minutes under light irradiation, wherein the adhesion initiation layer comprises an adhesive compound based on a catechol group and a first photoinitiator, and the hydrogel precursor solution comprises a natural polymer containing tyrosine, an acrylic monomer, a cross-linking agent and a second photoinitiator, and wherein the first photoinitiator and the second photoinitiator are different from each other and are independently selected from a divalent ruthenium compound and a persulfate. Compared with the prior art, the natural / synthetic polymer double-network gel coating with biological activity and mechanical property can grow on the surfaces of different substrates more quickly and efficiently through a one-step method; and the base material, the surface of which is modified by the in-situ grown double-network hydrogel coating, obtained by the method can be applied to in-vivo medical apparatuses and instruments.
Owner:BINZHOU WEIQIAO NATIONAL SCIENCE & TECHNOLOGY ADVANCED TECHNOLOGY RESEARCH INSTITUTE +1

Modified epoxy emulsion, preparation method thereof and application of modified epoxy emulsion in three-dimensional anti-counterfeiting temperature-variable ink

PendingCN120904403AInksEpoxyPolymer science
The invention belongs to the technical field of high polymer materials, and relates to a modified epoxy emulsion which comprises 70-80 parts of epoxy resin, 5-7 parts of an emulsifier, 0.4-0.8 part of an initiator, 60-80 parts of a mixed monomer and 180-220 parts of water. The mixed monomer is prepared from a soft and hard acrylic monomer, acrylic acid, glycidyl methacrylate, alkenyl silane modified nano silicon dioxide and caprolactone acrylate according to a specific proportion. The invention also discloses a preparation method of the modified epoxy emulsion, and in-situ grafting of nano silicon dioxide is realized by adopting a pre-emulsion step-by-step dropwise adding process. When the emulsion is applied to the three-dimensional anti-counterfeiting temperature-sensitive ink, the emulsion has a synergistic effect with expanded microspheres grafted with amino-containing benzene rings on the surfaces: epoxy groups of glycidyl methacrylate and amino groups on the surfaces of the expanded microspheres are crosslinked to form an interpenetrating network, nano silicon dioxide is dispersed in the interpenetrating network as a rigid node, and caprolactone chain segments provide network elasticity, so that the three-dimensional anti-counterfeiting temperature-sensitive ink is prepared. Therefore, the ink has high adhesive force, excellent wear resistance and weather resistance, and is particularly suitable for printing temperature change-three-dimensional double anti-counterfeiting marks.
Owner:JIANGSU DAYA NEW PACKAGING MATERIALS

A rapid self-repairing agent for marine reinforced concrete and a preparation method thereof

ActiveCN116835902BBetaineCross linker
The application discloses a kind of marine reinforced concrete crack fast self-repairing agent and preparation method thereof, the self-repairing agent includes the following components by mass fraction: polyacrylic acid hydrogel 20-30%, microorganism 5-10%, betaine 20-30%, calcium salt 15-25%, aluminum salt 20-30%.Its preparation method is: acrylic acid monomer is mixed with crosslinking agent, initiator, auxiliary crosslinking agent;Aluminum salt, acrylic acid are mixed to obtain aluminum acrylate;The two are mixed with microorganism and betaine, stirring and heating, and microorganism-polyacrylic acid hydrogel is prepared;After drying, it is broken, and calcium salt powder is wrapped, then immersed in polymer emulsion, dried, and prepared.The application can quickly block cracks by forming organic-inorganic composite repair products, solidify harmful media, release beneficial ions, achieve the dual goal of crack self-repairing and reinforcement corrosion inhibition.
Owner:JIANGSU UNIV OF SCI & TECH

Photocurable composition and dental product

A photocurable composition includes a (meth)acrylic monomer component and a photopolymerization initiator, wherein an adhesive force of a cured product is less than or equal to 1.5 N, and a rupture elongation of the cured product is greater than or equal to 20%.
Owner:MITSUI CHEMICALS INC

EVA (Ethylene Vinyl Acetate) photovoltaic packaging adhesive film as well as preparation method and application thereof

The invention relates to the technical field of photovoltaic packaging adhesive films, and discloses an EVA photovoltaic packaging adhesive film and a preparation method and application thereof. The EVA photovoltaic packaging adhesive film is prepared from 95 to 100 parts of EVA, 1 to 5 parts of high-bulk-resistance master batch, 0.5 to 1 part of main cross-linking agent, 0.1 to 0.8 part of auxiliary cross-linking agent, 0.1 to 5 parts of polyfunctional acrylic monomer and 0.25 to 3 parts of auxiliary agent, the high-bulk-resistance master batch is prepared from 70 to 100 parts of EVA (Ethylene Vinyl Acetate), 1 to 15 parts of modified boron nitride nanosheet and 1 to 15 parts of N-hydroxymethyl acrylamide. The EVA photovoltaic packaging adhesive film has the advantages of good light transmittance, high temperature, high bulk resistivity, low PCT aging and yellowing, low PID power attenuation and the like, can effectively improve the problems of polarization resistance, PID power attenuation and the like of the adhesive film after damp-heat aging, can ensure the power stability of a photovoltaic module in a damp-heat aging environment, is favorable for prolonging the service life of the photovoltaic module, and is suitable for popularization and application. And the photoelectric conversion efficiency is improved.
Owner:JIANGSU ZHONGLAI NEW MATERIAL TECH CO LTD

Composition including monomer with a carboxylic acid group, monomer with a hydroxyl group, an alkyl monomer, and crosslinker and related article and method

The composition includes an acrylic monomer having a carboxylic acid group, an acrylic monomer having a hydroxyl group, at least one of an alkyl acrylate or alkyl methacrylate, and from 15 to 22 percent by weight of a compound composed of divalent segments L and at least two X groups. The divalent segments L are represented by formula L. Each segment L is independently directly bonded to two secondary N atoms, two tertiary N atoms, or a secondary and a tertiary N atom. Each R1 represents an alkylene group having from 1 to 4 carbon atoms, and at least some of the R1 groups are —CH2—CH2—CH2—CH2—. Each X group is independently represented by the formula CH2═C(R)—C(O)—O—V—W—C(O)—. Articles and methods using the composition are also described.
Owner:3M INNOVATIVE PROPERTIES CO

Photo-curable pyridinium active monomer as well as preparation method and application thereof

The invention discloses a photocurable pyridinium active monomer as well as a preparation method and application thereof. The preparation method comprises the following steps: adding diisocyanate, a solvent and a catalyst into a container, uniformly stirring, dropwise adding an alcohol compound, uniformly adding an acrylic monomer after stirring for reaction, and stirring for reaction to obtain isocyanate-acrylate; the method comprises the following steps: uniformly adding a pyridine monomer into isocyanate-acrylate, reacting for 2-4 hours, adding an alkylating reagent, reacting for 8-12 hours, and carrying out reduced pressure distillation separation to obtain the photocurable pyridinium active monomer. And uniformly mixing the photocurable pyridinium active monomer, the photoinitiator, the active diluent and the acrylate oligomer to obtain the 3D printing photosensitive resin. The method disclosed by the invention is sufficient in reaction, relatively simple in process and easy to implement, the photocurable pyridinium salt monomers with different functions can be designed according to material requirements, and the antibacterial and antistatic effects of the 3D printing material are good.
Owner:HANGZHOU NORMAL UNIVERSITY

High-strength and high-toughness brass material and preparation method thereof

ActiveCN121537872AAnodisationElectrolytic inorganic material coatingPolymer sciencePlasma electrolytic oxidation
The invention relates to the technical field of brass materials, in particular to a high-strength and high-toughness brass material and a preparation method thereof.The preparation method comprises the steps that a porous oxide film layer is prefabricated on the surface of brass through plasma electrolytic oxidation, and an oxide film layer doped with double-bond silver-loaded graphene oxide is constructed on the surface of the brass; the preparation method comprises the following steps: firstly, preparing modified MXene, then preparing a photocurable hole sealing coating for hole sealing treatment, introducing double-bond silver-loaded graphene oxide and the modified MXene as fillers into the photocurable hole sealing coating, firstly performing sulfhydrylation on the MXene by using 3-mercaptopropyltriethoxysilane, and then grafting a double-bond-containing bis-benzimidazole ring derivative through light click to obtain the modified MXene; vinyl-terminated polyurethane is used as a cross-linking agent, o-phenyl phenoxyethyl acrylate, butyl acrylate, glycidyl methacrylate and octadecyl acrylate are compounded to serve as an acrylic monomer, a diluent and a solvent are introduced, a complex cross-linked network is constructed, and the service life of the brass material is prolonged.
Owner:SHAANXI PROVINCE MILITARY GRP SHAANXI COPPER

High-precision SiO2 ceramic 3D printing resin, preparation method and printing and degreasing method

The invention relates to the field of 3D printing materials and application, in particular to high-precision SiO2 ceramic 3D printing resin, a preparation method and a printing and degreasing method. The adhesive is prepared from the following raw materials in parts by weight: 60-95 parts of acrylate-based organic silicon prepolymer; 0.1 to 30 parts of organic silicon modified acrylic monomer; 0.5 to 1.3 parts of a photoinitiator; 0.1 to 5 parts of an ultraviolet light-blue light absorbent; the acrylate-based organosilicon prepolymer is acrylate-terminated polysiloxane, or is composed of acrylate-terminated polysiloxane and siloxane containing a nano structure. The 3D printing resin obtained by the technical scheme has relatively good size accuracy of a printed product, size accuracy after degreasing and sintering, and mechanical properties.
Owner:DONGGUAN GODSAID TECH CO LTD

Anaerobic adhesive composition

To achieve an anaerobic adhesive composition capable of suppressing occurrence of coating failure during coating. The anaerobic adhesive composition of the present invention includes a (meth)acrylic monomer, an organic peroxide, a curing accelerator, and an isoparaffin wax.
Owner:OKURA INDUSTRIAL CO LTD

A rapidly curable waterborne acrylic-modified epoxy resin emulsion for multi-substrate coating and a preparation method thereof

The application discloses a kind of for multi-substrate coating fast-curable water-based acrylic modified epoxy resin emulsion and its preparation method, first by itaconic acid, alcohol ether solvent and bisphenol A type epoxy resin synthesis epoxy adduct intermediate product, then with other acrylic monomer free radical polymerization is formed acrylic modified epoxy resin with this intermediate product, finally using additional epoxy emulsifier by phase inversion method is made water-based acrylic modified epoxy resin emulsion.The emulsion prepared in the application has higher glass transition temperature, has faster surface dry and curing speed, can satisfy the fast curing of coating film on various substrate workpieces, workpiece offline stacking resistance requirements;Side chain contains a certain amount of carboxyl and hydroxyl, can give coating excellent adhesion, realize good adhesion on various substrates;Resin structure contains a certain amount of bisphenol A type epoxy resin, and epoxy-amine curing agent is well compatible after curing, and coating is uniform.
Owner:CNOOC CHANGZHOU PAINT & COATINGS IND RES INST +2

Resin composition, prepreg, film with resin, sheet of metal foil with resin, metal-clad laminate, and printed wiring board

A resin composition contains: a curable resin (A); an acrylic-monomer copolymer (B) having a structure expressed by formulae (1) to (3) and having a weight average molecular weight equal to or greater than 10,000 and equal to or less than 900,000; an inorganic filler (C) where a molybdenum compound is present on at least a part of a surface thereof; and another inorganic filler (D) different from the inorganic filler (C). R1 is either a hydrogen atom or a methyl group. R2 includes at least one of a glycidyl group or an epoxidized alkyl group which is selected from the group consisting of a hydrogen atom, an alkyl group, the glycidyl group, and the epoxidized alkyl group. R3 is either a hydrogen atom or a methyl group. R4 is Ph (phenyl group), —COOCH2Ph, or —COO(CH2)2Ph.
Owner:PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO LTD

Adhesive composition

Provided is an adhesive comprising a cross-linked network of a polyvinyl acetal and an acrylic copolymer obtained by reacting a functionalized polyvinyl acetal with an acrylic monomer. The functionalized polyvinyl acetal is present in a weight fraction of 1% to 20% of the total weight of the adhesive and includes a polyvinyl acetal backbone having side chain functional groups that react with acrylic monomers. The acrylic copolymer is present in a weight fraction of 60% to 99% of the total weight of the adhesive. Advantageously, the adhesive can not only provide deformation resistance to prevent mechanical reading of the polarizer-free display backside component, but also provide a low rebound coefficient to achieve impact damping performance.
Owner:3M INNOVATIVE PROPERTIES CO

Two-component photo-thermal dual-curing 3D printing resin and preparation method thereof

The invention relates to the technical field of 3D printing, in particular to two-component photo-thermal dual-curing 3D printing resin and a preparation method thereof. Comprising a component A and a component B, the component B is a chain extender; the component A is prepared from the following raw materials in parts by weight: 60 to 95 parts of polyurethane acrylic resin; 0.1-30 parts of an acrylic monomer; 0.5-30 parts of a blocked isocyanate modified acrylic monomer; 0.5 to 5 parts of a photoinitiator; 1-6 parts of an auxiliary agent; the acrylic monomer is polyethylene glycol acrylate and / or an acrylate monomer containing other active groups; the blocked isocyanate modified acrylic monomer is one or a composition of more of pyrazolyl carbonyl amino group-containing acrylic ester, ketoxime carbonyl amino group-containing acrylic ester and ester carbonyl amino group-containing acrylic ester. After the 3D printing resin prepared by the technical scheme is printed and cured, relatively good printing performance, mechanical property and durability are obtained.
Owner:DONGGUAN GODSAID TECH CO LTD

Preparation method of PMI foam and PMI foam

The invention discloses a preparation method of PMI foam. The preparation method comprises the following steps: step A, uniformly mixing acrylonitrile monomers, acrylic monomers, an initiator, a foaming agent, a cross-linking agent and a retarder; step B, adding the mixed material into a mold, sealing, and carrying out bulk polymerization reaction at 30-60 DEG C to obtain a precursor; step C, taking out the precursor, drying, and foaming at 150-200 DEG C; and step D, carrying out curing treatment under the condition of 140-180 DEG C. According to the preparation method, a specific polymerization retarding system is mainly selected, so that the polymerization rate can be finely regulated and controlled, the polymerization process can be mildly initiated and finely controlled, the gel effect can be effectively delayed, heat can be timely dissipated, and a favorable influence is generated on the copolymerization behavior.
Owner:HONG KONG UNIV OF SCI & TECH (GUANGZHOU)

Waterborne two-component photocurable coating, and preparation method therefor and use thereof

The present invention relates to the technical field of coatings. Disclosed are a waterborne two-component photocurable coating, and a preparation method therefor and a use thereof. Preparation raw materials for the waterborne two-component photocurable coating of the present invention comprise: an acrylic monomer, an acrylate monomer, an initiator, an isocyanate monomer, a hydroxy vinyl ether, a bio-based material, a hydrophilic modifier, an epoxy resin, an acrylamide-based monomer, and a neutralizer. In the preparation raw materials, the bio-based material is a vegetable oil containing three or more epoxy groups, and the epoxy resin is an epoxy resin containing three or more epoxy groups. A double-bond-containing component of the waterborne two-component photocurable coating is a polyacrylate dispersion containing vinyl ether double bonds and acrylamide double bonds, and an epoxy-containing component of the waterborne two-component photocurable coating is a hydrophilically modified epoxy resin. A paint film of the waterborne two-component photocurable coating of the present invention has the characteristics of high flexibility, good chemical resistance, excellent adhesion to various substrates, etc.
Owner:CARPOLY CHEMICAL GROUP CO LTD

Preparation method of yacht special high-adhesion anti-fouling paint

The application discloses a preparation method of a yacht special high-adhesion anti-fouling paint, which comprises the following steps: preparing an anti-fouling paint resin by atom transfer radical polymerization of a catechol monomer containing an unsaturated double bond, an acrylic ester monomer containing an epoxy group, a silane acrylate monomer and an acrylic monomer, and mixing the resin with an amino-modified pigment, an anti-fouling agent and the like to obtain the anti-fouling paint. Compared with traditional anti-fouling paint, the catechol structure contained in the application can form a strong interaction with various substrates, greatly increasing the adhesion of the paint and avoiding the paint from falling off when the yacht is sailing at a high speed. The amino-modified pigment can be uniformly dispersed in the paint by reacting with the epoxy group of the resin matrix, avoiding the color deviation caused by pigment deposition or falling off, and enabling the yacht to keep a bright paint color for a long time. The amino group reacts with the epoxy group to form a cross-linking structure, increasing the hardness of the coating and resisting the impact of water flow and silt during the sailing of the yacht.
Owner:SHANDONG ACAD OF MARINE CHEM ENG

Resin having thermal crosslinking structure, method for preparing same, optical adhesive composition, microlens, and method for preparing same

The present application belongs to the technical field of high polymer materials, and relates to a resin with a thermal crosslinking structure, a preparation method thereof, an optical glue composition, a microlens and a preparation method thereof. The resin is synthesized by mixing a hydroxyl-containing acrylate monomer A, an epoxy acrylate monomer B and a carboxyl-containing acrylate monomer C according to a specific molar ratio, dropping into a reaction solvent, performing a copolymerization reaction at a specific temperature and adding a free radical initiator. The resin gives the photoresist good reflow characteristics, can maintain a stable form at high temperature, and further prepares an optical glue composition with excellent optical performance and durability. The optical glue composition not only has excellent optical performance, but also performs well in terms of thermal stability, chemical resistance and aging resistance. After spin coating, pre-baking, exposure, development and then heating and reflow, a microlens with a good shape can be formed.
Owner:XIAN SMART MATERIALS CO LTD