1208 results about "Resin coating" patented technology

The invention relates to the technical field of coatings, and discloses an amino-terminated ether-containing hyperbranched polyamide modified epoxy resin coating, which comprises a component A: 100 parts of a water-borne epoxy resin emulsion, 5-20 parts of titanium dioxide, 1-2.5 parts of a dispersant, and 0.05-0.2 part of an antifoaming agent; the component B is prepared from 50 to 70 parts of amino-terminated ether-containing hyperbranched polyamide; the amino-terminated ether-containing hyperbranched polyamide contains an active amino-terminated group, so that the amino-terminated ether-containing hyperbranched polyamide is used as a curing agent and is subjected to a cross-linking curing reaction with epoxy resin, the hyperbranched polyamide has a three-dimensional branched network structure and forms a spatial cross-linked interpenetrating network system with the epoxy resin, and the hyperbranched polyamide contains a flexible ether-containing chain segment and an alkyl chain segment, so that the cross-linking property of the hyperbranched polyamide is improved. The epoxy resin coating has a good toughening effect, improves the impact resistance and impact strength of an epoxy resin coating layer and a casting body thereof, and keeps high hardness and tensile strength at the same time.

The invention provides an anti-aging flame-retardant epoxy resin coating and a preparation process thereof, and belongs to the technical field of coating preparation. The preparation process comprises the following steps: preparing the flame-retardant additive; preparing a coated modified black phosphorus nanosheet; preparing modified hollow glass beads; preparing the epoxy resin coating. The preparation method comprises the following steps: dissolving 3, 4-dihydroxy benzaldehyde and 2-amino-4-methylphenol in absolute ethyl alcohol, carrying out a heating reflux reaction, carrying out dehydration condensation on an aldehyde group in the 3, 4-dihydroxy benzaldehyde and an amino group in the 2-amino-4-methylphenol to generate an imine bond-containing intermediate, respectively dissolving the intermediate and phosphonitrilic chloride trimer, and carrying out a reaction to obtain the phosphonitrilic chloride trimer. The preparation method comprises the following steps: firstly, adding phosphonitrilic chloride into an intermediate, then mixing for reaction, enabling phenolic hydroxyl groups in the intermediate and phosphonitrilic chloride trimer to be subjected to nucleophilic substitution reaction to generate the flame-retardant additive containing phosphorus and a Schiff base structure, and the flame-retardant additive has relatively good compatibility with an epoxy resin matrix, is not easy to separate out and can effectively improve the flame-retardant property of the epoxy resin coating.

The invention discloses a multi-layer protection cable resistant to an extreme environment, and belongs to the technical field of cables. The cable is of a seven-layer composite structure design and sequentially comprises a conductor, an insulating layer, a shielding layer, a buffer layer, a waterproof layer, a heat insulation layer and a protective outer layer from inside to outside, and the conductor is made of high-purity oxygen-free copper; the insulating layer is made of a polyimide material and has high temperature resistance, low temperature resistance and excellent insulating property; the shielding layer is composed of a tinned copper wire woven mesh and a high-permeability permalloy foil, and electromagnetic interference is effectively shielded; the buffer layer is made of an elastic rubber material to relieve mechanical stress; the waterproof layer adopts a nanoscale fluorosilicone resin coating and has excellent waterproof performance; the heat insulation layer is made of ceramic fibers and aerogel, and efficient heat insulation is provided; and the protective outer layer is made of a high-strength and corrosion-resistant polyether-ether-ketone (PEEK) material. The cable has excellent high temperature resistance, low temperature resistance, corrosion resistance and electromagnetic interference resistance, is suitable for extreme environments, and ensures stable transmission of electric power and signals under extreme conditions.

The invention relates to the technical field of coatings, in particular to a modified FEVE fluorocarbon resin coating and a preparation method thereof. The problem that the FEVE fluorocarbon coating is poor in durability is solved. The preparation method comprises the following steps: modifying FEVE fluorocarbon resin with linoleic acid to obtain a granular material; stirring the modified FEVE fluorocarbon resin, polyisocyanate, montmorillonite and a composite solvent to obtain a prepolymer; pre-dispersing and grinding silicon carbide, modified zinc oxide, a dispersing agent and a composite solvent, adding nano composite particles for ultrasonic dispersion, and adding a prepolymer and a flatting agent to obtain the modified FEVE fluorocarbon resin coating. Wherein the FEVE fluorocarbon resin is modified, so that the crosslinking speed, the coating strength and the adhesive force are improved, the stain resistance, the weather resistance and the corrosion resistance are improved through the nano composite particles and the like, and finally the durability of the FEVE fluorocarbon resin coating is improved.

The invention discloses a water-borne epoxy resin coating which comprises a component A and a component B, the component A is prepared from 60 to 80 parts of 50 percent modified water-borne epoxy resin emulsion, 5 to 15 parts of deionized water, 0.5 to 1 part of wetting dispersant, 0.2 to 0.8 part of defoaming agent, 5 to 10 parts of modified zinc phosphate, 3 to 5 parts of ion exchange antirust pigment, 4 to 6 parts of sericite powder, 3 to 5 parts of glass flake, 5 to 10 parts of precipitated barium sulphate, 1 to 5 parts of nano silicon dioxide and 0.5 to 1 part of rheological additive; 1 to 2 parts of modified organic bentonite slurry; 0.1 to 0.3 part of a pH conditioning agent; and 0.2 to 0.8 part of a flash rust inhibitor. The component B is prepared from 40 to 50 parts of waterborne epoxy-amine adduct, 20 to 30 parts of 50 percent modified polyamide curing agent, 5 to 15 parts of 60 percent Mannich base phenolic aldehyde amine curing agent, 0.5 to 1.5 parts of epoxy silane coupling agent, 1 to 2 parts of nonionic surfactant and 15 to 20 parts of deionized water. The emulsion stability of the waterborne epoxy resin coating is improved through a bisphenol A / F mixed epoxy emulsion and a grafted polyethylene glycol hydrophilic chain segment.

The invention discloses a shielding protection adhesive tape for semiconductor integrated circuit packaging and a preparation method thereof, and relates to the technical field of semiconductor integrated circuit packaging. The shielding protective adhesive tape for packaging the semiconductor integrated circuit is prepared by taking polyimide as a base material and coating a coating, and the coating comprises the following raw materials in parts by weight: 3-5 parts of modified nano silicon dioxide, 30-40 parts of N, N-dimethylformamide, 1-3 parts of a curing agent and 1-3 parts of a curing agent. The invention discloses a high-temperature-resistant epoxy resin coating which is prepared from the following components in parts by weight: 25-30 parts of N, N-dimethylformamide, 25-30 parts of a modified acrylate copolymer, 17-26 parts of ethyl acetate, 12-15 parts of epoxy resin, 1-2 parts of a silane coupling agent KH-550, 0.5-1 part of an antioxidant 1010, 0.3-0.8 part of an ultraviolet absorbent UV-327, 1-2 parts of carboxyl-terminated nitrile rubber, 2-4 parts of decabromodiphenyl ether, 0.1-0.3 part of an organic siloxane defoaming agent, 0.2-0.5 part of an acrylate flatting agent and 10-11 parts of diaminodiphenyl sulfone. The adhesive tape contains the modified nano silicon dioxide, the modified acrylate copolymer and other components, so that the performance of the adhesive tape is guaranteed; pretreatment is meticulous, preparation steps are standard, and mass production is easy; a finished product can be effectively shielded, and the packaging yield and the product stability can be improved.

The invention belongs to the technical field of cement concrete surface coatings, and discloses a cement concrete surface coating structure with acid-resistant and corrosion-resistant functions, which has the advantages that the acid resistance is improved: a composite coating structure is adopted, and the advantages of modified epoxy resin, nano filler and polyurea are combined, so that the acid resistance and durability of the coating are remarkably improved. The modified epoxy resin primer has good permeability, so that the adhesive force between the coating and a concrete base layer can be effectively enhanced, and the falling risk is reduced. And compared with a traditional epoxy resin coating, the preparation method of the composite coating simplifies the curing process and reduces the construction difficulty. And the cost is reduced: the nanofiller is adopted to replace part of the polyurea material, so that the cost of the coating is reduced, and the performance is improved. The coating is endowed with excellent hydrophobicity and self-cleaning capability through surface hydrophobic treatment, dirt adhesion is reduced, and the service life is prolonged.

The invention relates to the field of coatings, and discloses a solvent-resistant antirust anticorrosive biological resin coating and a preparation method thereof, the biological resin coating comprises modified bio-based epoxy resin, modified graphene oxide, modified nano titanium dioxide, a curing agent and a diluent; the modified bio-based epoxy resin is prepared by modifying epoxidized polysiloxane formed by self-polymerization of siloxane; the modified nano titanium dioxide is prepared by modifying a fluorine-containing group; the modified graphene oxide is prepared by grafting a flame-retardant modifier on the surface of graphene oxide, the flame-retardant modifier is prepared by reacting 3-amino-1, 2, 4-triazole with phosphonitrilic chloride trimer to prepare a flame-retardant intermediate, then grafting the flame-retardant intermediate and gamma-aminopropyltriethoxysilane by taking terephthalaldehyde as a bridging agent, and further reacting with DOPO (9, 10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide). The prepared biological resin coating is high in adhesive force, high in pencil hardness and good in corrosion resistance, solvent resistance and flame retardant effect.

The invention discloses a preparation method of a bio-based epoxy resin anticorrosive coating, and relates to a preparation method of a bio-based epoxy resin coating. The bio-based epoxy resin anticorrosive paint mainly comprises an anticorrosive filler COFs-AA, bio-based epoxy resin and a curing agent. Wherein the anticorrosive filler COFs-AA is prepared from a two-dimensional covalent organic framework COFs and a bio-based material arachidonic acid (AA) through a covalent condensation reaction; the bio-based epoxy resin is prepared by epoxidizing a bio-based material galangin serving as a raw material through epichlorohydrin, and the curing agent is a common curing agent for epoxy resin. The bio-based epoxy resin anticorrosive paint is compounded by taking biomass as a basic component, and has the characteristics of greenness, environmental protection, no toxicity, good hydrophobicity and good corrosion resistance; the bio-based epoxy resin anticorrosive paint can be applied to the field of corrosion protection of materials such as various metals and woodware.

The invention discloses a preparation method and application of a coating wool fabric with a far infrared health-care function. The preparation method comprises the following steps: dissolving waste wool by adopting an ionic liquid method to extract regenerated keratin powder, and doping the regenerated keratin powder, chitosan quaternary ammonium salt and functional particles into a membrane substrate material by adopting a blending modification method to prepare a functional coating material; and in combination with plasma pretreatment, coating the surface of the wool fabric with the functional coating material, and further performing crosslinking modification to obtain the far-infrared health-care functional coating wool fabric. According to the method, the problems that the wool fabric subjected to resin coating modification is hard in hand feeling and damaged in style are effectively solved, waste keratin resources are fully utilized, and secondary utilization of the resources is achieved; the electrical heating textile is prepared by using the excellent thermal conductivity and high conductivity of graphene and carbon nanotubes, and more far infrared rays are radiated along with the temperature rise of the graphene heating film.

The invention discloses a resin coating device for an optical fiber ribbon, a production device and a resin coating method, and relates to the technical field of optical fiber curing, a visual positioning device collects position information of the optical fiber ribbon in a mold base, and a controller controls a three-dimensional driving device to drive a dispensing device to move according to the position information; the flow adjusting device is controlled to adjust the glue outlet flow of the glue dispensing device, a proper amount of resin can be accurately smeared on the surface of the optical fiber ribbon, and compared with a traditional immersion type coating mode, the resin consumption is reduced, and the production cost is reduced; according to the invention, dispensing coating is adopted instead of traditional immersion type coating, so that the optical fiber ribbon is prevented from being completely immersed in the resin, and extrusion and lateral pressure of the resin on the optical fiber ribbon in the immersion process of the optical fiber ribbon are fundamentally avoided.

The invention relates to the technical field of coatings, and discloses a flame-retardant epoxy resin coating and a preparation method thereof.The flame-retardant epoxy resin coating is prepared by adding bisphenol A type epoxy resin, propylene glycol, phosphorus-containing modified imidazolyl benzoxazine, a chitosan-based flame retardant, titanium dioxide, a BYK-071 defoaming agent, a BYK-345 flatting agent, a BYK-220S wetting dispersant and water into a stirrer, stirring, adding a curing agent, stirring, adding a curing agent, and stirring to obtain the flame-retardant epoxy resin coating. The flame-retardant epoxy resin coating is obtained after the reaction is finished. Phosphorus, silicon and benzoxazine structures in the phosphorus-containing modified imidazolyl benzoxazine and the chitosan-based flame retardant all have better flame-retardant effects, and the phosphorus, silicon and benzoxazine structures in the phosphorus-containing modified imidazolyl benzoxazine and the chitosan-based flame retardant have better flame-retardant effects. Chitosan in the chitosan-based flame retardant also has a good flame retardant effect and an antibacterial effect. Benzoxazine can form a heat-resistant phenolic resin structure at high temperature, so that the benzoxazine has a relatively good flame-retardant effect; and an imidazole group in the phosphorus-containing modified imidazolyl benzoxazine also has a relatively good antibacterial effect.

The invention discloses a polyimide and epoxy resin composite modified fluorocarbon resin coating and a preparation method thereof, and the polyimide and epoxy resin composite modified fluorocarbon resin coating comprises the following components in percentage by weight: 0.4-0.8% of monomer diamine, 0.4-0.8% of monomer dianhydride, 60-70% of N, N-dimethylacetamide, 10-20% of epoxy resin, 0.2-0.5% of epoxy curing agent, 1-2% of fluorocarbon resin curing agent and 15-25% of fluorocarbon resin. The preparation method comprises the following specific steps: reacting monomer diamine and dianhydride in N, N-dimethylacetamide, sequentially compounding with epoxy resin and an epoxy curing agent to obtain a composite modifier, and adding the composite modifier and a fluorocarbon resin curing agent into a fluorocarbon resin solution to obtain the polyimide and epoxy resin composite modified fluorocarbon resin coating. Compared with an existing fluorocarbon resin coating, the performance of the fluorocarbon resin coating is greatly improved in the aspects of mechanical performance, heat resistance, adhesive force and the like.

The present invention relates to a preparation method of a flame-retardant, high-refractive-index, melt-drop-resistant water-based acrylate resin coating. Water, an emulsifier, and methacrylic acid are added to a reaction vessel and stirred for reaction, and then monomer A, DOPO, and N-vinylcarbazole are added; the temperature is raised to 75-85 °C, an initiator is added dropwise, and the reaction is carried out for 1-2 h to obtain a core-layer emulsion; at the same time, all of monomer B and the initiator are added dropwise, and the reaction is stirred for 1-2 h, then DOPO is added, the temperature is lowered to 50 °C, emulsifier B is added, the reaction time is 30-60 min, then N-vinylcarbazole is added, and the reaction is carried out for 0.25-0.5 h. Then, an ammonium polyphosphate solution, aluminum sulfate, and a chitosan / gelatin composite microsphere are added, and high-speed shear emulsification is carried out, and the pH value is adjusted to 7-8 to obtain a flame-retardant, high-refractive-index, melt-drop-resistant water-based acrylate resin coating; the obtained acrylate resin coating has the advantages of a high oxygen index, no melt dripping during combustion, and a high film refractive index.

A multicore optical fiber (MCF) according to one embodiment of the present invention enables stable core identification. The MCF comprises a glass optical fiber and a resin coating. The glass optical fiber includes a plurality of cores, a marker, and cladding. On a cross-section of the MCF, the arrangement of the centers of the cores and the center of the marker has no rotational symmetry with respect to the center of the cross-section. The cladding includes an inner cladding that surrounds the cores and the marker, and an outer cladding that is provided on the outer peripheral surface of the inner cladding and has a refractive index higher than that of the inner cladding.

A preparation method of a foldable / unfoldable honeycomb structure lunar module can meet the requirements of astronauts living on extraterrestrial bodies, liquid transportation, pressure-resistant containers, etc. In the present invention, a planar circular ring sheet material is equally divided and marked, misaligned and connected, axially stretched, and then glued and cured at a specified position to obtain a foldable and telescopic hollow honeycomb structure; the structure shaping of the honeycomb structure lunar module is realized by stepwise curing of the resin coating on the honeycomb surface. The present invention proposes a new hollow honeycomb structure as the skeleton structure of the lunar module. The planar honeycomb structure has the advantages of low density and strong pressure resistance, and is applied to the sandwich of anti-theft doors, airplanes, corrugated cardboard, etc. When the planar honeycomb is bent, the honeycomb will be deformed, seriously affecting its mechanical properties. The novel hollow honeycomb structure not only has the advantages of the planar honeycomb, but also solves the problem that the planar honeycomb is difficult to be applied to curved surfaces.

The invention relates to the technical field of illumination optical fiber manufacturing, in particular to a photoelectric separation safety illumination line, a preparation method thereof and an illumination system. The optical fiber comprises a core layer, a wrapping layer and a protective layer, the wrapping layer is coated on the outer surface of the core layer and adopts a resin coating layer, and the protective layer is arranged on the outer surface of the wrapping layer; the photoelectric separation lighting line which is low in energy consumption, safe, reliable and high in lighting brightness is provided, through the photoelectric separation design, optical fibers are connected to LED lamp beads, optical signals are received, safety and environmental protection are achieved, environmental protection is achieved, no electric spark is generated, no electromagnetic interference is generated, no heat is generated, and therefore the surrounding environment cannot be affected; potential safety hazards are avoided; wireless energy transmission between the power supply module and the light source is realized by adopting a magnetic resonance coupling or electromagnetic induction technology, so that the electric shock risk caused by traditional wire connection is eliminated, and the safety of installation and use is improved.

The invention relates to the technical field of biomass fibers, in particular to a modified biomass fiber for a resin anticorrosive coating as well as a preparation method and application of the modified biomass fiber, and the modified biomass fiber is a biomass fiber with a rare earth complex anchored on the surface; the rare earth complex is formed by combining rare earth metal ions serving as central ions with organic ligands through coordinate bonds; rare earth ions and organic ligands are grafted to the surfaces of the pretreated biomass fibers through chemical reaction, so that the binding capacity of the biomass fibers in resin can be improved, and the biomass fibers are endowed with fluorescence characteristics; and moreover, the biomass fibers subjected to fluorescence modification are doped into the resin coating, so that the integrity of the coating can be self-detected under ultraviolet light, and the effect of monitoring the resin coating in real time can be achieved.

The invention provides a marine antifouling coating based on fluorine-silicon low-surface-energy resin. The marine antifouling coating comprises a fluorine-silicon low-surface-energy resin coating (1), an organic silicon epoxy floating coating (2) and an epoxy base coating (3), a ketoxime-removing curing agent is arranged between the fluorine-silicon low-surface-energy resin coating and the organic silicon epoxy floating coating; wherein the fluorine-silicon low-surface-energy resin coating is an antifouling coating; the epoxy prime coat layer is an epoxy resin polymer; the organic silicon epoxy floating coat adopts an organic silicon modified epoxy coating to form a coating system matched with the epoxy prime coat and the fluorosilicone low-surface-energy resin coating; the organic silicon modified epoxy coating contains a siloxy group and an epoxy group, so that the combination of the organic silicon epoxy floating coat coating, the epoxy prime coat coating and the fluorine-silicon low-surface-energy resin coating is realized; the deketoxime curing agent takes KH550, KH570, methyl diacetylmonoxime silane and ethyl diacetylmonoxime silane as raw materials, and the raw materials react with part of water under a heating condition, so that the multifunctional curing / tackifying agent is formed.

The invention discloses a corrosion-resistant anti-static composite structure for a storage tank and a preparation method of the corrosion-resistant anti-static composite structure, a conductive grid layer is innovatively introduced into the structure, a corrosion-resistant resin coating and a corrosion-resistant anti-static metal coating are arranged at the same time, and by controlling the relative position and the section thickness size of each layer structure, the corrosion-resistant anti-static composite structure is obtained. The bonding strength of the anti-corrosion and anti-static structure and the storage tank base body can be improved, the problem that the anti-static performance of a traditional anti-static structure is low due to the fact that conductive filler is not evenly dispersed or abraded can be solved, and the anti-corrosion and anti-static storage tank has excellent, lasting and reliable anti-corrosion performance and anti-static performance; in the preparation process, by controlling the operation process and related parameters and increasing the modification process, the combination effect between the layers in the composite structure is further enhanced, and a conductive network path with excellent charge transfer capacity is constructed, so that the composite structure has high corrosion resistance and antistatic performance and long service life.

The invention relates to an acrylic resin coating and a preparation method thereof, a resin coating and a coating product. The acrylic resin coating comprises a component A and a component B, the component A is prepared from the following components in parts by mass: 15 to 30 parts of thermosetting acrylic resin, 8 to 24 parts of extinction type acrylic resin, 1 to 3 parts of anti-sagging resin, 0.5 to 4 parts of amino resin, 1 to 2 parts of silicon dioxide, 0.1 to 1 part of catalyst and 29 to 43 parts of first solvent; the hydroxyl value of the thermosetting acrylic resin is 140 mgKOH / g to 160 mgKOH / g; and the component B comprises the following components in parts by mass: 10-20 parts of a curing agent and 2-5 parts of a second solvent. The acrylic resin coating is relatively good in storage stability and relatively long in service life; the resin coating prepared by mixing and curing the component A and the component B has good gloss stability, and also has good mechanical properties, impact resistance, aging resistance and chemical resistance.

The invention provides a composite porous carbon material and a preparation method thereof, and a silicon-carbon negative electrode material and a preparation method thereof, and belongs to the technical field of silicon-carbon negative electrode materials. Liquid resin, biomass carbon and carbon nanotubes are fully mixed in an organic solvent, a high-strength spherical porous carbon material is obtained through processes of spray drying, carbonization, activation and the like, and finally the silicon-carbon negative electrode material is obtained through silicon deposition and carbon coating. The resin coating, the carbon nanotubes and the spherical structure cooperate with one another, so that the strength of the porous carbon structure is greatly enhanced; the high-strength porous carbon base material can effectively relieve the problem of pore fracture caused by silicon expansion and high compaction of the pole piece, improve the first efficiency and slow down long-cycle capacity attenuation.

The utility model discloses a tunnel drainage pipe with a falling protection structure, which relates to the technical field of tunnel drainage pipes and comprises a pipe body and a protection component, the pipe body is of an integrally formed structure, and the protection component is arranged on the surface of the pipe body. The protection assembly comprises a stainless steel woven mesh, a hard alloy protection layer, an epoxy resin coating, a rubber cushion, a polyurethane protection sleeve and an elastic air bag ring. According to the tunnel drainage pipe with the falling protection structure, the overall structure can be reinforced by the device through the protection assembly, and the drainage pipe is protected through the protection structure during falling; through a clamping mounting groove, a clamping mounting ring, a threaded mounting ring, a threaded connecting groove, a main reinforcing ring, an auxiliary reinforcing ring and a reinforcing bolt, the device can achieve quick connection between drainage pipes through a connecting structure, the connecting sealing performance is high, the water leakage phenomenon is not prone to occurring, and therefore traffic accidents caused by road surface water accumulation are reduced, and the service life of the drainage pipes is prolonged. And the service life of the pavement is effectively prolonged.

An insulated wire including a conductor and a resin coating layer covering a periphery of the conductor, wherein the conductor is an aluminum conductor surface-treated with CO2 plasma, and at least a portion of the resin coating layer in contact with the conductor includes at least one kind of a polyaryletherketone resin and a polyphenylene sulfide resin.

The invention belongs to the technical field of epoxy resin coatings, and particularly relates to a waterborne epoxy resin coating and a preparation method thereof. The waterborne epoxy resin coating is prepared from the following raw materials in percentage by mass: 5-70% of novolac epoxy resin F-516, 10-12% of hydroxyl-terminated polybutadiene, 5-7% of glycidyl methacrylate, 8-10% of a curing agent, 0.6-1.0% of a thermal initiator, 1-2% of a silane coupling agent, 0.3-0.5% of an auxiliary agent and the balance of deionized water, wherein the total percentage is 100%. Microencapsulated polyether amine in the water sample epoxy resin coating accurately releases polyether amine T-403 to realize controlled release of a curing agent, and by combining thermal triggering double-bond polymerization of dicumyl peroxide and interface stability of the silane coupling agent and synergistic effect of all the components, the coating is endowed with high adhesive force, high impact resistance, excellent salt spray corrosion resistance and low water vapor permeability; good application prospects are realized.

The invention discloses a preparation method of nitrogen-doped hierarchical pore hollow carbon spheres, and relates to the technical field of electrochemical desalination, the preparation method comprises the following steps: carrying out polycondensation on melamine and formaldehyde in the presence of PVP to form a spherical template; resorcinol and HMTA form a phenolic resin coating layer on the surface of the template; calcining at high temperature to realize decomposition and carbonization of the template, and introducing double bonds through a silane coupling agent; introducing a phosphoryl chloride group through free radical polymerization; finally, grafting a sulfonic acid group through nucleophilic substitution to obtain a final product. The nitrogen-doped hollow carbon spheres with a hierarchical pore structure are prepared through a hollowing strategy and surface modification, and N, P and S ternary heteroatom synergy is realized through introduction of a phosphoryl chloride group and a sulfonic acid group, so that the material has high specific surface area, optimized pore structure and strong ion exchange capacity; the composite material shows excellent ion adsorption performance and cycling stability, and has a good application prospect in the field of capacitive deionization.

The invention relates to the technical field of anti-corrosion coatings, in particular to an anti-corrosion composite coating for metal pipeline repair and a preparation method thereof.The anti-corrosion composite coating is composed of a component A and a component B. The component A is prepared from, by mass, 100-120 parts of epoxy resin, 10-30 parts of benzimidazolyl-POSS and 5-10 parts of nano filler fibers; the benzimidazolyl-POSS is prepared by enabling octavinyl POSS (Polyhedral Oligomeric Silsesquioxane) and 5-amino-2-mercapto benzimidazole to react with each other; the component B comprises the following raw materials in parts by weight: 20-100 parts of a curing agent, 1-5 parts of a thixotropic agent and 1-5 parts of a silane coupling agent. According to the invention, 5-amino-2-mercapto benzimidazole is bonded to a POSS skeleton through a mercapto-ene click reaction to form a nano-scale hybrid structure, and the nano-scale hybrid structure is uniformly dispersed in epoxy resin, so that the synergistic interaction of a corrosion inhibition function and physical barrier is realized, and the EIS impedance of an epoxy resin coating is remarkably improved.

The invention relates to the field of preparation of lubricating materials, in particular to a preparation method of composite phase change lubricating gel based on temperature-friction force synergistic response. The lubricating gel adopts a sandwich layered structure; the bottom layer is a porous ceramic layer formed by micro-arc oxidation, is filled with a disulfide bond dynamic network polymer and is anchored on a metal substrate; the middle layer comprises a microencapsulated phase change material which is dispersed in a polyurethane network containing dynamic disulfide bonds and is wetted with ionic liquid; the surface layer is an epoxy resin coating rich in boron nitride nanosheets, and a rapid heat conduction channel is constructed. Compared with the prior art, the lubricating state can be automatically adjusted in the friction process without external energy input, and the method has the advantages of being sensitive in multi-field coupling response, capable of achieving automatic antifriction protection, high in extreme working condition adaptability and the like.

The invention discloses a preparation method of a high-performance peelable asparagus polyurea resin coating, and the high-performance peelable asparagus polyurea resin coating is prepared from the following raw materials in parts by weight: 40-50 parts of asparagus polyurea resin, 30-35 parts of an isocyanate curing agent, 3-6 parts of epoxy resin, 15-20 parts of a diluent, 0.2-0.8 part of a flatting agent and 0.2-0.8 part of a defoaming agent. Comprising the following steps: step 1, mixing the epoxy resin with a diluent to obtain a system 1; step 2, uniformly mixing and stirring asparagus polyurea resin, the system 1 and a diluent of the system 1 to obtain a system 2; step 3, adding the flatting agent and the defoaming agent into the system 2 obtained in the step 2 according to the proportion, and uniformly mixing and stirring to obtain a system 3; step 4, mixing an isocyanate curing agent with a diluent to obtain a system 4; and step 5, adding the system 4 into the system 3, and uniformly mixing and stirring to obtain the coating. The preparation method can be used for preparing the asparagus polyurea resin coating with high mechanical strength, weather resistance, low VOC (volatile organic compound) emission and controllable stripping performance.