2008 results about "Resin matrix" patented technology

The present invention relates to the technical field of composite materials. Provided are a glass fiber-reinforced epoxy resin composite material and a preparation method therefor. In the present invention, an epoxy silane coupling agent solution is used for performing surface modification on glass fibers. An epoxy silane coupling agent contains a hydrolyzable group and an epoxy group. Silicon hydroxyl generated when the hydrolyzable group is hydrolyzed can be connected to the glass fibers, so as to effectively modify the surfaces of the glass fibers. The epoxy group can react with an epoxy resin matrix, thereby improving the infiltration effect of the epoxy resin on the glass fibers and improving the bonding performance of the interface of the glass fiber-reinforced epoxy resin composite material, and thus improving the mechanical properties of the glass fiber-reinforced epoxy resin composite material. The epoxy resin is cured and modified by using a functional curing agent or nanoparticles, so as to improve the ductility or strength of the epoxy resin, thereby improving the mechanical properties of the prepared glass fiber-reinforced epoxy resin composite material.

The invention discloses a gradient gradual change type powder material as well as a preparation method and application thereof. The gradient gradual change type powder material comprises a non-metal core, a transition layer, a gradual change layer and a modification layer. The gradient powder material provided by the invention shows excellent strength-ductility synergistic effect, high fracture toughness and enhanced fatigue, wear and corrosion resistance, is good in metal wettability, can effectively reinforce a metal matrix and improve the performance of the metal matrix, can also be well dispersed in resin, and can be applied to the field of metal materials. The gradient powder material disclosed by the invention has a wide application prospect, and can be applied to the fields of heat dissipation of electronic devices, high-speed cutting tools, grinding material and grinding tool materials, high-temperature protection materials and the like.

The invention discloses a food-grade high-temperature-resistant coating and a preparation method thereof. The high-temperature-resistant coating is prepared from 60-75% of matrix resin, 18-28% of surface hydrophobic modified nano functional filler and 10-20% of auxiliaries, and the nano functional filler is prepared from 10-15% of nano silicon dioxide, 5-8% of nano aluminum oxide and 3-5% of nano titanium dioxide. According to the food-grade high-temperature-resistant coating and the preparation method thereof, surface hydrophobic modification is carried out on nano particles through a silane coupling agent, the compatibility and dispersion stability of the nano particles in a resin matrix are remarkably improved, coating defects caused by agglomeration at high temperature are avoided, a hydrophobic barrier is formed by the modified nano filler, the moisture permeability is reduced, and the high-temperature-resistant performance of the food-grade high-temperature-resistant coating is improved. And the damp-heat aging resistance of the coating is enhanced.

The invention discloses a composition based on hollow glass beads and a preparation method thereof, and relates to the technical field of material science. The preparation method comprises the following steps: firstly, constructing a pre-composite functional microsphere with a specific hierarchical structure as a core basic functional unit, then matching with a plurality of components such as a thermosetting resin matrix, a latent curing system, a functional synergistic aid package and a composite solvent system, and matching with a preparation process which has a synergistic effect with the components. The composition based on the hollow glass beads is expected to realize uniform dispersion of the hollow glass beads in a coating system and strong bonding of a microscopic interface on the premise of ensuring the structural integrity of the hollow glass beads. Therefore, the high-performance composite coating material with ultra-light weight, high heat insulation efficiency, excellent mechanical strength and long-term service stability is obtained.

The invention discloses a high-refractive-index nano-composite optical adhesive and a preparation method thereof, and belongs to the technical field of optical transparent adhesives. The optical adhesive is prepared by taking a polyurethane acrylate oligomer with a specific structure as matrix resin, introducing surface-modified barium titanate and zirconium oxide core-shell nanoparticles as a functional filler, and matching with an active diluent, a photoinitiator and a silane coupling agent in a specific proportion. Through the design of the core-shell structure, the core problems that the high-refractive-index nanoparticles are easy to agglomerate in an organic resin matrix, the dispersion stability is poor and the bonding force with a matrix interface is weak are effectively solved. The prepared optical adhesive has a refractive index of more than 1.65, a light transmittance of more than 99% and a haze of less than 0.3% after being cured, has excellent bonding strength, weather resistance and long-term use stability, and is especially suitable for precise lamination of high-end display devices (such as OLEDs (Organic Light Emitting Diodes) and micro-lens arrays).

The invention relates to the technical field of PET optical films, and particularly discloses a high-light-transmittance blue-light-resistant PET optical film and a preparation method thereof, and the high-light-transmittance blue-light-resistant PET optical film is prepared from the following raw materials by weight: 70-85% of a polyethylene glycol terephthalate resin matrix; 3%-8% of a benzotriazole anti-blue light agent; 5%-12% of a silicon dioxide nano anti-reflection agent; 2%-6% of nano zinc oxide or nano cerium oxide; 1.5% to 4% of a polycarbodiimide cross-linking agent; 0.5%-3% of an anti-blocking agent; 0.4%-1.5% of an antioxidant; 0.4%-1.0% of an ultraviolet light absorber; the balance is a processing aid; the preparation method comprises the following steps: S1, pretreating the raw materials; s2, a mixing procedure; and S3, extruding and coating. The PET optical film provided by the invention has high optical properties of high light transmittance, blue light resistance and low haze, and has the advantages of high light transmittance and blue light blocking rate of the optical film and improvement of the application range of the optical film.

The present invention discloses a low-temperature conductive adhesive, which is prepared by weight using raw materials including 70-80 parts of silver powder, 20-30 parts of resin matrix, 1-10 parts of curing agent, 0.1-0.5 parts of silane coupling agent, 0.1-0.5 parts of stabilizer, and 0.1-0.5 parts of metal salt. The present invention introduces an organic metal salt into the resin matrix to reduce the contact resistance of the colloid, and after wet heat aging, maintains a lower contact resistance increase rate. The present invention adopts a combination of epoxy resin, acrylate and modified epoxy acrylic resin, and the weight of epoxy resin and acrylate is less than or equal to the weight of modified epoxy acrylic resin, so that low-temperature curing can be achieved. The present invention can achieve 60-80 ° C, 20-40 min curing, and the conductive adhesive elongation at break obtained can reach more than 8%, and before and after wet heat aging, there is a more stable and relatively small contact resistance, which is particularly suitable for the electronic field with high requirements for contact resistance.

The invention provides a preparation method of a self-repairing resin-based composite material based on dynamic bonds. The self-repairing epoxy resin comprises one covalent dynamic bond of a Diels-Alder bond, a disulfide bond or a borate bond, and the preparation method of the self-repairing epoxy resin comprises the following steps: heating epoxy resin to a molten state, adding a curing agent component while stirring, and carrying out a prepolymerization reaction to obtain a prepolymer; the curing agent comprises a rigid diamine curing agent, a dynamic diamine monomer and a flexible chain segment regulator, and the dynamic diamine monomer contains a dynamic covalent bond; and carrying out curing molding on the prepolymer to obtain the self-repairing epoxy resin. And impregnating reinforced fibers or fabrics thereof with the prepared prepolymer, and heating and curing to obtain the self-repairing resin-based composite material. The invention provides a chemical molecule design, dynamic reversible chemical bonds are introduced into a resin matrix, and by constructing the dynamic bonds, the composite material has high performance of a traditional composite material and also has life-like self-healing ability.

The invention discloses a high-strength hoop and a processing method thereof in the technical field of mechanical connection fasteners. The high-strength hoop comprises the following raw materials: modified carbon fibers, a modified epoxy resin matrix, chopped glass fibers, an antioxidant and an aluminate coupling agent. Cleaning the modified carbon fibers with acetone to remove oil stains, oxidizing the modified carbon fibers with concentrated nitric acid at 80-85 DEG C to generate polar functional groups containing hydroxyl and carboxyl, washing the modified carbon fibers with water until the modified carbon fibers are neutral, drying the modified carbon fibers, immersing the modified carbon fibers into an absolute ethyl alcohol solution of an aluminate coupling agent for ultrasonic dispersion, and curing the modified carbon fibers at 100-105 DEG C; the modified epoxy resin matrix is prepared by heating and melting epoxy resin, adding nano montmorillonite, stirring and dispersing, adding polyamide, an accelerant and a flexibilizer, and carrying out vacuum defoaming at 100-105 DEG C. The hoop has the advantages of high strength, weather resistance and the like by modifying and enhancing interface bonding and matrix toughness, and is suitable for connection under complex working conditions.

The invention provides a universal light-cured resin preparation method, and relates to the technical field of light-cured resin preparation, and the method comprises the following steps: S1, preparation of microcrystalline wax-LMA; s2, preparing an acrylic resin matrix; s3, adding microcrystalline wax-LMA and other fillers into the acrylic resin matrix, and stirring and mixing; s4, then adding a diluent and other additives, and stirring and mixing; and S5, adding a compound photoinitiator, and stirring and mixing to obtain a finished product. Through the compound photoinitiator, the surface and the deep layer of the material are synchronously cured, and almost no curing stress exists, so that the material can be cured into a sheet layer without any buckling deformation in a sunken DLP (Digital Light Processing); and secondly, the microcrystalline wax-LMA forms a microphase separation structure in the material, so that the shrinkage and cracking of the material are greatly reduced, and the effects of improving the strength and the toughness can be achieved.

The invention discloses a preparation method of a WS2 / MXene / HBPSi synergistically enhanced epoxy resin composite material. The preparation method specifically comprises the following steps: preparing a WS2 / MXene hybrid from few-layer MXene powder, WCl6 and a sulfur source precursor; the preparation method comprises the following steps: uniformly mixing tetraethoxysilane, neopentyl glycol and triethanolamine, and carrying out gradient heating reaction to obtain HBPSi; epoxy resin EP is used as a resin matrix, DDS is used as a curing agent, a WS2 / MXene hybrid is used as a lubricating additive, HBPSi is used as a toughening agent, and the epoxy resin composite material is prepared by combining a melt blending process with a staged heating curing method. According to the method, the toughness and the interface bonding strength of the material are remarkably improved by introducing HBPSi, the friction coefficient of the material is effectively reduced and the wear resistance is improved through the synergistic effect of WS2 and MXene, and cooperative regulation and control of structural strengthening and friction performance improvement are achieved.

The invention relates to the technical field of material preparation, and discloses a magnetic basalt fiber reinforced wear-resistant self-lubricating coating and a preparation method thereof, and a coating and a preparation method thereof, and the preparation method comprises the following steps: step 1, treating short-cut basalt fibers with an acid and / or alkali solution, mixing with an iron salt solution to obtain a reaction solution, carrying out hydrothermal reaction to obtain the magnetic basalt fiber loaded by the magnetic nanoparticles; step 2, adding a filler into the resin matrix solution, dispersing, and grinding to obtain resin slurry; and 3, adding the magnetic basalt fiber in the step 1 into the resin slurry in the step 2, adding a curing agent, and uniformly mixing to obtain the required coating. According to the method, the contact behavior and the abrasion mechanism of a friction pair are optimized, the friction coefficient and the abrasion rate are reduced, the tribological performance of the obtained coating is improved, the service life of a mechanical kinematic pair is prolonged, and the reliability and the stability of equipment operation are improved.

The invention discloses preparation and application of an environment-friendly P, N and Si synergistic flame retardant. According to the flame retardant (KDOPO-LDH (at) GO), a plurality of flame-retardant elements such as P, N and Si are integrated, so that an efficient synergistic flame-retardant system is constructed. Wherein the existence of the N element and the Si element effectively promotes the uniform dispersion of the flame retardant in an epoxy resin matrix; meanwhile, the unique molecular structure of the P-containing component endows the carbon-forming agent with excellent carbon-forming performance under a high-temperature condition. Through the synergistic effect of multiple elements, the flame retardant property of the epoxy resin is remarkably improved, and meanwhile, the good mechanical property of the material is effectively maintained. In addition, halogen-free and low-toxicity substances are mainly generated in the pyrolysis process of the flame retardant, and the green chemical concept is met.

The invention discloses a polyetherketoneketone high-temperature-resistant wear-resistant non-stick coating and a preparation method thereof. The coating is prepared from the following components in parts by mass: 13 to 30 parts of a resin matrix group (containing 12 to 25 parts of titanium modified polyether ketone ketone resin, 1 to 5 parts of fluorine-free viscous resin and 0.65 to 6 parts of aluminum oxide), 0.5 to 3 parts of a nano reinforced group (containing 0.5 to 3 parts of KH-550 modified nano titanium dioxide, 0.025 to 0.6 part of cerium dioxide and 0.5 to 3 parts of boron nitride) and 62 to 71 parts of an auxiliary agent group. The preparation method comprises the following steps: 1) taking diphenyl ether, paraphthaloyl chloride and isophthaloyl chloride as monomers, and synthesizing titanium modified polyether ketone ketone resins with different viscosities through segmented polymerization (1.5-2.0 hours or 3.0-4.0 hours); 2) respectively preparing a smooth bottom layer water dispersion slurry and a wrinkled surface layer water dispersion slurry; and (3) forming a compact bottom layer and a micro-wrinkle surface layer on the base material by adopting a layered spraying and stepped sintering process (280-320 DEG C, 10-20 minutes). The whole system of the coating is fluorine-free and has temperature resistance gt; the coating has the characteristics of high temperature resistance (350DEG C), wear resistance (Taber wear rate of 3-5mg / 1000r), non-sticking (contact angle gt, 100 DEG C) and heavy corrosion resistance, and is suitable for cooking utensils and chemical equipment.

The invention relates to the technical field of polymer composite materials, and discloses a nano-ceramic-based composite insulating coating and a preparation method thereof, and the coating is prepared from a composite resin matrix, a composite functional ceramic filler, a double-reactivity organosilicon linker and an initiator. Wherein the composite resin matrix is composed of vinyl-terminated polydimethylsiloxane and a vinyl ether functionalized fluorocarbon copolymer, and a soft and rigid interpenetrating network structure is formed. The composite functional ceramic filler is prepared from needle-shaped silicon nitride, flaky hexagonal boron nitride, nano silicon dioxide, nano cerium oxide and nano barium titanate. According to the invention, a chemical bonding interface is constructed between the inorganic filler and the organic resin, and the synergistic effect of the composite matrix and the multifunctional filler is optimized, so that the coating has excellent adhesive force, flexibility and thermal shock resistance, obtains high volume resistivity and breakdown strength, and meets the insulation protection requirements under harsh working conditions.

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

The invention discloses a bulletproof composite material and a preparation method thereof, and relates to the technical field of bulletproof composite materials. The bulletproof composite material is formed by compounding aramid fibers and a resin matrix, wherein the resin matrix comprises the following raw materials in parts by weight: 60-70 parts of epoxy resin, 5-8 parts of a modified toughening agent, 4-5 parts of a curing agent, 1-2 parts of a heat stabilizer, 1-2 parts of an inorganic filler, 0.5-1 part of a coupling agent and 2-5 parts of a wetting agent; the preparation method comprises the following steps: reacting cyanuric chloride with 4-hydroxyphenylboronic acid to generate an intermediate 1; reacting the intermediate 1 with 3-amino-1, 2-epoxypropane to generate an intermediate 2; reacting the intermediate 2 with cystamine to generate an intermediate 3, and reacting the intermediate 3 with dopamine to generate the modified toughening agent. The bulletproof composite material prepared by the invention has good ballistic protection performance, multiple impact resistance and self-repairing performance.

The invention relates to the technical field of composite materials, in particular to a carbon fiber composite material with both interface performance and damping performance and a preparation method of the carbon fiber composite material. The invention relates to a carbon fiber composite material with interfacial properties and damping properties. The carbon fiber composite material is prepared from the following components in percentage by weight: 65-75% of carbon fibers, 25-35% of a modified butyl rubber resin matrix, 0.5-2% of a butyl rubber film, 0.5-1% of a polyurethane-based sizing agent and 0.1-0.5% of a silane coupling agent, the in-situ growth CNTs technology is adopted, the shearing strength of a fiber-resin interface can be remarkably improved, meanwhile, the butyl rubber film is embedded into every two layers of carbon fiber prepreg of a sandwich structure, directional energy dissipation is achieved through controllable shearing deformation, excellent environmental stability is achieved, the damping performance and interface performance loss after damp-heat aging is lower than 15%, and the damping performance and the interface performance loss after damp-heat aging are lower than 15%. The industrial problem that a traditional carbon fiber composite material is strong but not tough and rigid but not soft is successfully solved, and the carbon fiber composite material is particularly suitable for application requirements of high-end competitive sports equipment.

The invention relates to the technical field of composite materials, in particular to a high-strength epoxy resin composite material and a preparation method thereof, and the high-strength epoxy resin composite material comprises the following raw materials in parts by weight: 50-80 parts of a base material, 10-20 parts of a curing agent, 5-10 parts of modified carbon nanotubes, 3-10 parts of a reinforcing sheet, 3-6 parts of a reinforcing material and 1-3 parts of a flame retardant. In the preparation method, the modified carbon nanotubes are in chemical bond connection with the base material through surface modification, the interface bonding force is enhanced, stress is effectively transmitted, the unique layered structure and surface modification treatment of the enhanced sheet are enhanced, the enhanced sheet is firmly combined with the resin matrix, and a three-dimensional enhanced network is formed through the synergistic effect of mechanical interlocking and stress dispersion. The vermiculite sheet layer prevents crack propagation, and the modified carbon nanotubes and the reinforcing material effectively transfer stress, so that the tensile strength and bending strength of the composite material are greatly improved, and the high-strength application requirement is met.

The invention belongs to the field of composite ink coatings, and particularly discloses a high-thermal-conductivity and high-adhesiveness copper foil coating ink coating as well as a preparation method and application thereof. The ink coating is prepared from the following components in parts by weight: 15 to 25 parts of epoxy resin, 10 to 20 parts of polyurethane resin, 5 to 12 parts of modified cellulose, 30 to 45 parts of heat-conducting filler, 8 to 15 parts of aliphatic polyisocyanate curing agent, 20 to 35 parts of solvent, 2 to 5 parts of silane coupling agent and 0.5 to 3 parts of pigment. The modified cellulose is prepared by modifying halogen-free betaine hydroxide, and can cooperate with the double-resin matrix to enhance the interface bonding force and construct a three-dimensional heat-conducting network. After the surface of an electrolytic or rolled copper foil is coated with the ink coating, the heat conductivity coefficient of the coating is larger than 0.4 W / (m.K), the dyne value is larger than 38, the cross-cut test is larger than or equal to 4B, alcohol wiping resistance is achieved, falling is avoided, the color difference delta E is smaller than 1, and the ink coating is suitable for a high-frequency circuit substrate and a lithium battery current collector.

The invention discloses an ultrasonic orthogonal scanning measurement method for mechanical properties of a fiber reinforced composite material. The method comprises the following steps: aiming at a composite material unidirectional plate to be detected, fixing receiving (transmitting) points on the surface of one side of a material, positioning the transmitting (receiving) points on the surface of the other side of the material, performing linear scanning along any two orthogonal directions, and recording transmission quasi longitudinal wave and quasi transverse wave time domain waveform signals which are acquired by combining each pair of transmitting and receiving points and are propagated along different paths; establishing an acoustic model for quantitatively describing the quantitative relationship between the ultrasonic trend and the independent elastic constant, thickness and fiber direction angle of the to-be-tested fiber reinforced resin matrix composite so as to simulate an ultrasonic data acquisition experiment and generate a corresponding simulated ultrasonic data set; and updating the independent elastic constant, the thickness and the fiber direction angle value of the composite material by taking the similarity degree between ultrasonic data sets obtained by experiments and simulation as a target function. According to the invention, multi-parameter high-precision in-situ nondestructive measurement of mechanical properties, thickness and fiber orientation of materials can be synchronously realized.

The invention discloses a carbon fiber sizing agent composition suitable for thermoplastic resin, sized carbon fiber, a carbon fiber sizing agent as well as a preparation method and application of the carbon fiber sizing agent, belongs to the technical field of carbon fiber sizing agents, and solves the problem that a sizing agent in the prior art cannot meet excellent mechanical properties and high temperature resistance at the same time. The composition is prepared from the following components in parts by weight: 15 to 35 parts of modified polyaryletherketone resin matrix, 0.3 to 2 parts of neutralizer, 1 to 3 parts of emulsifier, 1.5 to 3 parts of defoaming agent and 57 to 80 parts of deionized water. The sizing agent containing the composition has good wettability and film-forming property on the surface of the carbon fiber, and meanwhile, the sizing agent is matched with other components with specific contents in the composition, so that the carbon fiber sizing agent containing the carbon fiber sizing agent composition has excellent heat resistance, can bear processing at the high temperature of 350 DEG C or above, and has good application prospects. And the composite material containing the sizing agent has excellent interlaminar shear strength.

The invention discloses a coating, a preparation method and application, and relates to the technical field of anticorrosive coatings. A dry film of the coating comprises 0.1 wt%-6wt% of a lamellar filler; the lamellar filler is prepared by loading magnetic nanoparticles on the surfaces of two-dimensional nanoparticles and coating a layer of high-molecular polymer. After the coating forms a film, a specific magnetic control orientation curing method is matched, so that high dispersion stability and planar orientation arrangement of the two-dimensional nano filler in a resin matrix are realized, and corrosion of water and oxygen to a base material can be effectively blocked. When the thickness of the coating dry film is only 1-2 microns, the coating dry film still has no obvious corrosion phenomenon after being subjected to a neutral salt spray test for 2000 hours. The metal base material with the thin coating thickness has heat conductivity, corrosion resistance and weather resistance, the preparation process is simple, the cost is low, and the metal base material has extremely high market application value.

The cBN resin superhard grinding wheel is prepared from the following raw materials in percentage by mass: 30 to 45 percent of cBN grinding material, 1 to 3 percent of nano yttrium oxide, 2 to 3 percent of nano zirconium oxide, 2 to 4 percent of coupling agent, 1 to 3 percent of silicon dioxide compound and the balance of phenolic resin. The phenolic resin matrix is jointly modified by the nano yttrium oxide, the nano zirconium oxide and the specific silicon dioxide compound, and the prepared grinding wheel has good wear resistance, hardness and temperature resistance.

The invention belongs to the technical field of polymer composite materials, and discloses a carbon fiber interface modifier aided design method and system based on collaborative optimization, and the method is used for designing a carbon fiber interface modifier based on collaborative optimization of machine learning and molecular dynamics simulation. By constructing a closed loop iteration process of generation-prediction-verification-learning, interfacial modifier molecules meeting multi-target performance requirements are quickly and accurately obtained under the condition that a large amount of early-stage chemical synthesis and experimental screening are not needed. According to the method, through deep combination of high-throughput prediction of machine learning and virtual experiment verification of molecular dynamics, efficient and automatic design of the interface modifier molecules is achieved, experimental synthesis and trial and error links are greatly reduced, the research and development efficiency is improved, and the method is widely suitable for design and optimization of the interface modifier molecules of the carbon fiber / resin-based composite material.

The invention discloses a preparation method of regenerated glass fiber reinforced PA6 plastic particles based on a fan blade, and the preparation method comprises the following steps: crushing the fan blade and removing metal impurities to obtain a crushed material; the crushed material is subjected to pyrolysis treatment, and a primary treatment material is obtained; performing low-temperature oxidation treatment on the primary treatment material to obtain a secondary treatment material; the secondary treatment material is placed in an impregnating compound to be subjected to impregnating treatment, and surface-modified regenerated glass fibers are obtained; mixing the regenerated glass fiber with a resin matrix to obtain a mixed material; and melting the mixed material, and carrying out injection molding extrusion to obtain the recycled glass fiber reinforced plastic particles. According to the preparation method of the reinforced PA6 plastic particles based on the regenerated glass fibers of the fan blades, the pure glass fibers can be recycled from the fan blades, the reinforced plastic particles can be prepared after the recycled glass fibers are mixed with the resin, and further high-value utilization of recycled products is achieved.

The structural formula of the coating weather-resistant agent is shown in the specification, and a substituent group R1 is methyl, propyl, carbamoyl or phenyl. The invention also discloses a nano composite anticorrosive coating which is prepared from the following components in parts by mass: 30-45 parts of epoxy resin matrix, 3-8 parts of nano zinc oxide, 3-8 parts of nano titanium dioxide, 5-15 parts of mica powder, 3-8 parts of coalescing agent, 0.5-2 parts of silane coupling agent, 0.8-3 parts of dispersing agent, 0.5-2 parts of flatting agent, 0.5-2 parts of defoaming agent, 0.5-2 parts of weather-proof agent and 15-30 parts of solvent, and the weather-proof agent is a coating weather-proof agent. The invention also discloses a preparation method of the paint weather-resistant agent and the nano-composite anticorrosive paint. The invention effectively solves the problem that the coating is easy to age, crack and peel off.

The invention relates to a low-dielectric-loss high-thermal-conductivity epoxy resin composite material and a preparation method thereof, and the preparation method comprises the following steps: carrying out surface modification treatment on a thermal conductive filler: carrying out surface modification on the thermal conductive filler by adopting a chemical covalent bonding or physical adsorption mode, the heat-conducting filler is used for improving the compatibility of the filler and an epoxy resin matrix and reducing the interface thermal resistance, and comprises boron nitride with a two-dimensional sheet structure; epoxy resin, a curing agent and an optional modifier are evenly mixed, the epoxy resin is selected from epoxy resin with the low polarity characteristic, and the modifier comprises at least one of thermoplastic resin or elastomer. And the process is simple and controllable.

The invention relates to the technical field of basalt fiber reinforced composite material pipelines and preparation methods thereof, and discloses a pipeline named as a basalt fiber reinforced composite material pipeline and a preparation method thereof and a preparation method thereof. The invention aims to overcome the defects of continuity, interface bonding and mechanical properties of the conventional basalt fiber reinforced composite material pipeline. The pipeline is composed of a lining layer, a basalt fiber winding reinforcing layer and an outer protective layer, the reinforcing layer is formed by compounding basalt fiber bundles subjected to surface treatment and a resin matrix, and the reinforcing layer is of a multi-layer structure with different winding angles. The preparation method comprises the following steps: roughening the inner lining layer, infiltrating and accurately winding the fiber bundles, performing multi-section curing and forming the outer protective layer. According to the scheme, the macroscopic mechanical property of the pipeline is remarkably improved, the interface combination of fibers and a matrix is optimized, the integrity of the fibers is kept, efficient preparation is achieved, and the pipeline has the advantages of being excellent in corrosion resistance and ultraviolet resistance, long in service life and the like.

The invention discloses a preparation method of a high-temperature-resistant wave-absorbing honeycomb sandwich structure in the technical field of wave-absorbing materials, which comprises the following steps: synthesizing a transition metal modified polycarbosilane precursor under the protection of inert gas, and performing high-temperature cracking to obtain a magnetic silicon carbide wave-absorbing agent; blending and grinding the wave-absorbing agent and high-temperature-resistant resin to prepare a wave-absorbing glue solution; after a honeycomb core material is formed by adopting inorganic fiber cloth, a wave-absorbing glue solution is loaded through a repeated dipping-drying process, and the high-temperature-resistant wave-absorbing honeycomb is obtained through gradient heat treatment. And finally, compounding and curing with the wave-transparent skin and the carbon fiber composite material through a high-temperature-resistant adhesive film. The sandwich structure is prepared on the basis of the composite material, and the magnetic silicon carbide wave-absorbing agent has the characteristics of high temperature resistance, low density, oxidation resistance and adjustable dielectric property; the phthalocyanine resin matrix is adopted, so that excellent formability and high-temperature stability are guaranteed; honeycomb nodes are sewn and reinforced by silicon carbide fibers, so that the problem of node cracking in a high-temperature environment is solved.