398 results about "Nanodiamond" patented technology

The invention relates to a nano-diamond coating, a coating and application thereof, and belongs to the technical field of coatings and surface engineering. The nano-diamond coating provided by the invention is prepared from the following raw materials: resin, a curing agent and organic fluorosilane modified nano-diamond, the organic fluorosilane modified nano-diamond is prepared from raw materials including organic fluorosilane and nano-diamond. According to the invention, the organic fluorosilane is adopted to modify the nano-diamond, the unique physicochemical characteristics of the nano-diamond can be utilized to construct a firm and wear-resistant coating, and the application limitation of the existing amphiphobic coating, especially a super-amphiphobic coating, is broken through; meanwhile, the nano-diamond can spontaneously migrate to the surface in a resin system through modification of the organic fluorosilane, the surface of the coating is endowed with amphiphobic performance and even super-amphiphobic performance, the paint and the coating which are excellent in wear resistance, self-cleaning performance, corrosion resistance and antifouling performance are finally obtained, the preparation process is simple and rapid, and the preparation method is suitable for industrial production. The cost is low, and large-scale production can be realized.

The invention discloses a self-dispersing nano-diamond reinforced coating as well as a preparation method and application thereof, and belongs to the technical field of protective coatings. The self-dispersing nano-diamond reinforced coating provided by the invention comprises a component A and a component B. The component A comprises the following components in parts by mass: 15-35 parts of epoxy resin, 1-30 parts of nano-diamond, 5-15 parts of a solvent and 0.5-1 part of a defoaming agent; and the component B comprises the following component in parts by mass: 2-15 parts of a curing agent. The coating is simple in ingredient, has good effects in adhesive force, impact strength, flexibility, neutral salt spray test and alkaline soaking, is a multifunctional transparent coating with corrosion resistance, wear resistance and antifouling performance at the same time, and has wide application scenes and practical value.

The invention discloses a high-strength nano composite stiffening filling master batch and a preparation method thereof, and relates to the technical field of high polymer materials, the raw materials comprise a nano filler, a matrix material and a functional additive; the nano filler comprises nano diamond, nano silicon carbide and bio-based nano cellulose, the base material comprises polyimide, polyether-ether-ketone and bio-based polylactic acid, and the functional additive comprises a hindered phenol antioxidant, a nano aluminum hydroxide flame retardant, a nano silicon dioxide reinforcing agent, an ultraviolet light absorber, a carbon nano tube and nano silver particles. Nano-diamond, nano-silicon carbide and bio-based nano-cellulose are adopted as nano-fillers, polyimide, polyether-ether-ketone and bio-based polylactic acid are combined as base materials, and a plurality of functional additives are added, so that the preparation of the high-strength nano-composite stiffening filling master batch is realized; and the problems of poor dispersibility, mechanical property damage, insufficient hardness and poor interface bonding of the traditional filler master batch can be solved.

The invention relates to a chip integrated heat dissipation system and a preparation method thereof, and belongs to the technical field of heat dissipation of semiconductor devices. The chip integrated heat dissipation system comprises a nano-diamond transition layer attached to a chip. A micro-column array supporting layer is arranged on one side, far away from the chip, of the nano-diamond transition layer; the micro-column array supporting layer is in contact with one surface of the diamond film, and the other surface of the diamond film is attached to the three-dimensional micro-channel heat dissipation layer. The invention also provides a preparation method of the chip integrated heat dissipation system. The chip integrated heat dissipation system provided by the invention has the advantage of efficient heat dissipation, and through the combination of the three-dimensional structure and the high heat conduction characteristic of diamond, the heat dissipation power density is remarkably improved, the junction temperature of the chip is reduced, and the heat dissipation requirement of a high-power device is met. The heat dissipation performance reliability is high, the thermal stress is eliminated through the gradient structure design, the interlayer binding force is improved, and the stable performance is still kept after multiple thermal cycles. And the preparation process is good in compatibility and convenient for large-scale production.

Luminescent diamond is made by subjecting a volume of diamond grains to high-pressure / high-temperature conditions with or without a catalyst to cause the grains to undergo plastic deformation to produce nitrogen vacancy defects in the diamond grains, increasing the luminescent activity / intensity of the resulting diamond material. The consolidated diamond material may be further treated to further increase luminescent activity / intensity, which treatment may comprise reducing the consolidated diamond material to diamond particles, heat treatment in vacuum, and air heat treatment, which reducing process further increases luminescent activity / intensity. The resulting luminescent diamond particles display a level of luminescence intensity greater than that of conventional luminescent nanodiamond, and may be functionalized for use in biological applications.

The present invention discloses a method for preparing nano-diamonds based on graphene vertical sheets. The present invention utilizes a hot wire chemical vapor deposition system to grow graphene vertical sheets containing tantalum atoms, and transforms the graphene vertical sheets into nano-diamonds under relatively low pressure conditions. The method has the characteristics of mild conditions and low cost. The method has low requirements on equipment, simple process and easy operation. The method has important scientific significance and value for developing a new method for preparing nano-diamonds.

The invention relates to the technical field of biomedical materials, and discloses a thrombectomy stent support material and a preparation process thereof, the thrombectomy stent support material comprises the following components by mass: 60-70% of a polysebacic diglyceride prepolymer; 25-35% of a dynamic covalent bond cross-linking agent; 5%-10% of carboxylated nano-diamond; 3 to 5 percent of temperature-sensitive and photo-thermal dual-response microspheres; the dynamic covalent bond cross-linking agent is composed of 4-formyl phenylboronic acid and hexamethylenediamine according to a molar ratio of 1: (1-3); the microsphere is prepared from poly (N-isopropylacrylamide), a gold nanorod and a recombinant tissue type plasminogen activating agent, and by combining a low-temperature 3D printing technology, the material can form a complex bionic structure, the mechanical strength is dynamically adjusted along with the physiological environment after implantation, and the material is safely degraded after functions are completed. The material is suitable for the scenes of cardiovascular and cerebrovascular stents, bone repair instruments and the like, has treatment accuracy, manufacturing suitability and clinical safety, and solves the problems of non-degradability, sudden drug release, mechanical mismatch and the like of traditional implants.

The invention belongs to the technical field of catalyst preparation, and provides an M2 diatomic site catalyst for a reaction for preparing phenylenediamine through dinitrobenzene hydrogenation and a preparation method and application thereof.The catalyst is formed by anchoring transition metal M diatomic sites to the surface of a diamond-graphene carrier and is prepared by taking nano-diamond powder as a raw material through a one-step reaction. Annealing treatment is carried out at the high temperature of 750-850 DEG C, a diamond-graphene carrier of an sp3 atsp2 core-shell structure is constructed, and the surface defect density of the diamond-graphene carrier is regulated and controlled in the process; and depositing metal species on the surface of the carrier through ALD double-step deposition to obtain the M2 diatomic site catalyst with high density and stable structure. The M2 diatomic site catalyst is applied to a reaction for preparing a corresponding phenylenediamine compound through hydrogenation of a dinitrobenzene compound, and high conversion rate and high selectivity can be achieved with low metal loading capacity under mild conditions. The method can be popularized to construction of diatomic catalysts of various transition metals, and has a wide application prospect.

Luminescent diamond is made by subjecting a volume of diamond grains to high-pressure / high-temperature conditions with or without a catalyst or pressure transfer media to cause the grains to undergo plastic deformation to produce internal vacancy defects, increasing the luminescent activity / intensity of the resulting diamond material. The luminescent material is then subjected to further treatment to create quantum dots on the surface of the diamond particles. Quantum dot formation can include placing the diamond particles in liquid and subjecting the particles to laser pulses. The consolidated diamond material may be treated to further increase luminescent activity / intensity including reducing the consolidated diamond material to diamond particles, heat treatment in vacuum, and / or air heat treatment. The resulting luminescent diamond particles display a level of luminescence intensity greater than that of conventional luminescent nanodiamond, and may be functionalized for use in biological applications.

The present invention discloses a flow type fluorescence detection system, which comprises: a sample flow channel, which is used for conveying a target object specifically bound with a nano-diamond mark, the nano-diamond comprises an NV color center, and the sample flow channel is provided with a detection area; the exciting light module is used for exciting an NV color center of a detection area of the sample flow channel, so that electrons of the NV color center are transited to generate fluorescence; the microwave radiation module is used for providing a microwave field for a detection area of the sample runner; the optical detection module is used for collecting a target material which is specifically bound with the nano-diamond mark at a preset collection frequency, and when the target material flows through the detection area of the sample flow channel, the NV color center in the nano-diamond emits a fluorescence signal of which the intensity is periodically changed by controlling at least one of the intensity, the frequency and the on-off of a microwave field; the fluorescence signal is associated with whether the target contains to-be-detected biomolecules or not. According to the technical scheme provided by the embodiment of the invention, the detection sensitivity of the fluorescence detection system is improved.

The invention discloses a nano-diamond array preparation and miRNA ultra-sensitive detection method, and the nano-diamond array preparation comprises the following steps: self-assembling densely arranged single-layer polystyrene (PS) microsphere templates on a silicon wafer plated with a gold film, and thinning the particle size of PS microspheres by adopting a reactive ion etching process to obtain non-densely arranged PS microsphere templates; carrying out thermal evaporation on an aluminum film and ultrasonically removing the PS microspheres to obtain a micropore array; then modifying the surface of the nano-diamond containing the NV color center with a single-chain DNA probe, and self-assembling the diamond modified by the DNA probe to the nano-pore array through a gold-sulfur bond; the miRNA detection comprises the following steps: firstly, preparing a target miRNA coupled probe magnetic sphere, dropwise adding the target miRNA coupled probe magnetic sphere to the nano-diamond array, then scanning the target miRNA coupled probe magnetic sphere on the surface of the nano-diamond array through the scanning system, the microwave module and the optical path system, and collecting an optical detection magnetic resonance spectrum. The invention is expected to be applied to the field of early diagnosis of cancers.

The invention relates to the technical field of heat-conducting materials, in particular to a heat-conducting silica gel sheet and a preparation process thereof, and the heat-conducting silica gel sheet is prepared from the following components in parts by weight: 100 parts of organic silicon rubber; 300-500 parts of a heat conducting filler; 3-8 parts of a curing agent; 1-3 parts of a catalyst; according to the invention, a composite system of silicon carbide particles with a specific crystal structure, surface-modified graphene sheets and nano-diamond particles is used as a heat-conducting filler, and the filler is subjected to accurate proportioning and surface treatment, so that not only is the heat-conducting efficiency greatly improved, but also the internal binding force and heat stability of the material are effectively enhanced; compared with a traditional heat-conducting silica gel sheet, the heat-conducting silica gel sheet can more effectively transfer heat and reduce thermal resistance under the same condition, so that the heat dissipation performance and operation reliability of electronic equipment are improved, and in addition, the heat-conducting silica gel sheet has good mechanical performance and machinability and is easy to adapt to various complex application scenes.

The invention discloses a nano-diamond reinforced powder metallurgy brake pad friction body material and a preparation method thereof, and relates to a brake pad friction body material and a preparation method thereof. The problem that in the prior art, the stability of a braking system of a train at a high running speed cannot be achieved is solved. The friction body material comprises a matrix component, a lubricating component, a friction component and a basic reinforcing component, wherein the sum of the mass percentages of the matrix component, the lubricating component, the friction component and the basic reinforcing component is 100%; wherein the mass percent of the copper powder in the matrix component is 50%-70%, and the mass percent of the iron powder in the matrix component is 10%-30%; the mass percent of the lubricating component is 10%-20%; the mass percent of the friction component is 1%-5%; the mass percent of the nano-diamond in the enhanced component is 0.1%-1%; the friction component is composed of one or more of silicon dioxide, aluminum oxide, titanium carbide, tungsten carbide, silicon carbide powder and zirconium oxide powder; the lubricating component is composed of one or more of graphite, carbon nanotubes and molybdenum disulfide. Belongs to the technical field of powder metallurgy.

The present invention relates to a process for preparing diamond particles, comprising subjecting a nanodiamond precursor material to a pressure of at least 8 GPa and a temperature of at least 900°C, wherein the diamond precursor material comprises a polycyclic aromatic compound which contains from 10 to 200 fused six-membered aromatic rings.

The invention discloses a preparation method of GaN / diamond with low interface thermal resistance, and aims to solve the bottleneck problems of interface failure, high interface thermal resistance and the like caused by growth of diamond on a GaN substrate. The preparation method of the GaN / diamond with low interface thermal resistance comprises the following steps of: 1, ultrasonically cleaning a GaN substrate; 2, carrying out reverse sputtering cleaning on the GaN substrate; 3, sputtering and depositing a Si3N4 transition layer on the GaN substrate; 4, ultrasonic cleaning; 5, spin-coating the nano-diamond suspension liquid on the GaN substrate; 6, introducing hydrogen, oxygen and methane gas, and depositing a diamond layer in stages; 7, depositing a diamond layer at a first stage under low pressure; and 8, depositing a diamond layer at a second stage under high pressure. The GaN / diamond material with low interface thermal resistance is prepared through a multi-temperature gradient low-temperature growth process in combination with collaborative optimization of air pressure and time, and gradient heat flow control is combined with stress buffering of the Si3N4 transition layer, so that the integrity of the Si3N4 film is ensured.

The invention discloses a diamond particle inlaid metal matrix diamond coating composite material and a preparation method and application thereof.The preparation method comprises the steps that diamond particles are pressed and embedded in a metal substrate, the metal substrate inlaid with the diamond particles is obtained and subjected to heat treatment, then the metal substrate subjected to heat treatment is placed in nano-diamond seed crystal turbid liquid, seed crystals are planted, and the diamond particle inlaid metal matrix diamond coating composite material is obtained. The preparation method comprises the following steps: planting a seed crystal on a metal substrate to obtain a metal substrate for planting the seed crystal, and carrying out chemical vapor deposition on the metal substrate to grow a diamond film or a diamond-doped film, so as to obtain the diamond particle inlaid metal-based diamond coating composite material. The diamond film has the most obvious diamond phase and (111) crystal face preferred growth trend, the bonding strength of the diamond film and the substrate is high, and the diamond film has excellent conductivity and catalytic activity.

The invention relates to the technical field of grinding fluid, in particular to efficient grinding fluid for an MPO connector, a preparation method and application of the efficient grinding fluid for the MPO connector. 27%-44% of alpha-aluminum oxide; 8%-15% of a styrene-maleic anhydride copolymer; 2%-5% of a modified polyurea solution; 0.05% to 0.3% of perfluoropolyether; 0.5%-2% of citric acid; 0.5%-1.5% of a polyether modified polysiloxane defoaming agent; by adopting a composite abrasive material system of the nano-diamond and the alpha-aluminum oxide, the grinding efficiency and the surface quality are improved in a breakthrough manner.

The invention discloses a silicone rubber composite material for enhancing the wear resistance of a tire and a preparation method of the silicone rubber composite material, and belongs to the technical field of silicone rubber materials for tires. The silicon carbide nanofibers directionally bear stress through a one-dimensional structure, the surface friction coefficient is reduced through the layered lubricating characteristic of fluorinated graphene, and crack propagation is inhibited on the micro-level through the synergistic effect of the silicon carbide nanofibers and the fluorinated graphene. The tribological performance is further optimized through compound addition of the polyimide microspheres and the nano-diamond powder, dynamic friction loss is reduced through the ball effect, and the surface scratch resistance is improved through the ultra-high hardness of the nano-diamond powder. Meanwhile, the filler-matrix binding force is enhanced through interface bonding of the sulfydryl modified titanium dioxide quantum dots and the zinc borate nanosheets, abrasive particle falling caused by interface stripping is effectively avoided, and the structural integrity of the material is kept under the long-term dynamic load.

The invention provides a gradient composite graphene electrolysis electrode plate and an in-situ preparation method thereof. The electrode plate comprises a metal conductive base material (such as titanium alloy), a porous ceramic skeleton layer (Al2O3-40% ZrO2, the porosity of which is 30 + / -5%), a chemical copper plating layer for filling pores, an electroplated nickel-ruthenium alloy catalytic layer (Ni: Ru = 9: 1) and 3-5 graphene functional layers (ID / IG is less than or equal to 0.08) grown in situ, wherein the porous ceramic skeleton layer (Al2O3-40% ZrO2) is laser-cladded on the surface of the porous ceramic skeleton layer (Al2O3-40% ZrO2). The preparation method comprises the following steps: performing laser cladding on a ceramic skeleton, wherein the power density is 300-500W / mm < 2 >, and sintering at 1600 DEG C to form metallurgical bonding; gradient plating: electroless copper plating (containing nano-diamond enhancement) and pulse electroplating of Ni Ru (duty ratio is 1: 5); and performing directional CVD growth: after reducing the catalyst layer by H2 at 1050 DEG C, introducing CH4 / H2 (the volume ratio is 1: 4) in a pulse manner, and realizing full coverage of the inner wall of the mesh by vortex air intake. The technical effects are as follows: (1) the overpotential of chlorine evolution in saturated salt water at 80 DEG C is as low as 268mV (1A / cm < 2 >); (2) strong acid environment service life gt; the time is 100 thousand hours (12 times that of the national standard); (3) the production cost is lt; and 620 / m < 2 > (90% lower than that of a traditional ruthenium-iridium coating). The problems of graphene transfer damage and special-shaped electrode covering are solved.

The invention belongs to the technical field of battery cooling liquid, and particularly relates to new energy automobile power battery cooling liquid and a preparation method thereof. The new energy automobile power battery cooling liquid is prepared from the following raw materials in percentage by mass: 40 to 60 percent of dihydric alcohol, 0.2 to 3 percent of a corrosion inhibitor, 0.1 to 0.5 percent of an antioxidant, 0.1 to 0.5 percent of a pH regulator, 0.01 to 0.05 percent of an anti-foaming agent, 0.005 to 0.015 percent of a nano additive and the balance of ionized water, the nano additive comprises an ionic flaky nano mineral, nano palygorskite and nano diamond in a mass ratio of (3-5): (0.1-0.5): (0.1-0.5). The new energy automobile power battery cooling liquid has good low dielectric constant, high thermal conductivity and good storage stability.

The invention provides a sodium ion battery without a negative electrode, which adopts sodium ferric phosphate as a positive electrode active material and does not contain a negative electrode active material. According to the negative-electrode-free sodium ion battery, the electrochemical performance, the cycling stability and the safety of the battery are remarkably improved, and the conductivity and the charge transmission efficiency of the positive electrode material are improved. The surface of the negative electrode current collector is roughened, so that the surface area and active sites are increased, and the deposition efficiency and stability of sodium ions are improved. Additives such as sulfamide-grafted nano-diamond are added into the electrolyte, so that the conductivity and the electrochemical stability of the electrolyte are optimized. Meanwhile, by adjusting the concentration of the sodium hexafluorophosphate sodium salt electrolyte, the proportion of the cyclic organic ether solvent and the mass ratio of the small organic molecule additive to the inorganic sodium salt additive, the electrochemical performance and the thermal stability of the battery are improved.

The invention discloses a flow-type fluorescence detection method and system based on a zero field. The method comprises the following steps: when a target material specifically bound with a nano-diamond mark flows through a detection area of a sample flow channel, detecting the target material; by controlling at least one of the intensity, the frequency and the on-off of the microwave field, the NV color center in the nano-diamond emits a fluorescence signal with the intensity changing periodically; the magnetic field intensity of the detection area meets the zero field condition, the excitation light module is used for exciting the NV color center of the detection area of the sample flow channel, the microwave radiation module is used for providing a microwave field for the detection area of the sample flow channel, and a microwave radiation signal provided by the microwave field has a fixed frequency; the light detection module collects a fluorescence signal at a preset collection frequency; and the data processing module judges whether the target object contains the to-be-detected biomolecules according to the fluorescence signal. According to the technical scheme provided by the embodiment of the invention, the detection sensitivity of the fluorescence detection method is improved.

The invention relates to the field of high-pressure pressure distribution calibration and imaging, in particular to a high-pressure diamond anvil cell internal pressure calibration / imaging system and method based on wide-field optical detection magnetic resonance. The invention discloses a high-pressure diamond anvil cell internal pressure calibration / imaging system based on wide-field optical detection magnetic resonance. The system comprises a fluorescence excitation and collection unit which comprises a wide-field optical detection magnetic resonance pressure distribution imaging light path based on nano-diamond NV color center fluorescence and a pressure calibration light path based on a ruby microsphere fluorescence spectrum. Compared with the prior art, the technical effects of the invention are that a traditional single-point detection mode is broken through through a wide-field microscopic imaging method, submicron spatial resolution and 0.0045 GPa / Hz1 / 2 noise measurement sensitivity are realized, and a brand new stress field characterization means is provided for a high-pressure experiment.

The invention provides a corrosion-resistant liquid cooling plate and a preparation method thereof. The cold plate comprises a bottom plate and a cover plate which are connected with each other, the end face, facing the cover plate, of the bottom plate is provided with a runner structure. A corrosion-resistant coating is arranged on the surface of the runner structure; the corrosion-resistant coating comprises one or more of nano aluminum nitride powder, nano diamond powder, titanium dioxide powder and modified organic silicon high-temperature-resistant resin; one of the two opposite ends of the flow channel structure is a water inlet, and the other is a water outlet. It can be seen that according to the corrosion-resistant liquid cooling plate provided by the invention, the corrosion-resistant coating is arranged on the surface of the flow channel structure, and the flow channel structure is not prone to electrochemical corrosion, so that the corrosion resistance of the cold plate is improved.

The invention relates to a polishing method for a polycrystalline silicon carbide substrate, and belongs to the field of polishing of polycrystalline silicon carbide substrates. The method comprises the following steps: (1) roughly polishing a silicon carbide wafer until Ra is not greater than 0.3 nm by adopting a polyurethane polishing pad and an oxidant-free nano-diamond polishing solution; the Shore D hardness of the polyurethane polishing pad is 70 to 75; and (2) a damping cloth polishing pad is adopted, and pure silica sol without an oxidizing agent serves as a polishing solution to conduct fine polishing till Ra is not larger than 0.2 nm. According to the method, the polyurethane high-hardness polishing pad is matched with the nano-diamond polishing solution to mechanically polish the polycrystalline silicon carbide, so that orange peel defects on the surface of the polycrystalline silicon carbide are avoided, and the surface roughness is reduced; furthermore, a damping cloth polishing pad is matched with an oxidant-free nano silica sol polishing solution for fine polishing, so that the roughness of the surface of the wafer can be further reduced.

The invention relates to the technical field of superhard materials, and particularly discloses a polycrystalline diamond compact and a preparation method and application thereof.The preparation method of the polycrystalline diamond compact comprises the following steps that WC-Co alloy powder is sintered to obtain a hard alloy matrix; uniformly mixing nano diamond powder, micron diamond powder and cubic boron nitride, adding a reinforcing agent and a binding agent, and uniformly mixing to obtain a polycrystalline diamond layer mixture; the reinforcing agent is a nitrogen-boron doped graphene bonded amino carbon nanotube; a gradient transition layer raw material and a polycrystalline diamond mixture are uniformly spread on the surface of the hard alloy matrix in sequence, and then a composite blank is obtained through mold pressing; and sintering the composite blank to obtain the polycrystalline diamond compact. Graphene and carbon nanotubes are compounded to form a reinforcing agent with a three-dimensional network structure, so that the strength and wear resistance of the material are improved, and the service life of the material under harsh working conditions is prolonged.

The invention discloses a high-stability magnetic liquid and a preparation method thereof, and belongs to the field of magnetic fluid nano functional materials related to ships. The magnetic liquid comprises a metal-doped iron oxide nano-particle core, a double-layer surface modification layer composed of oleic acid and a silane coupling agent, and a composite carrier liquid formed by compounding poly-alpha olefin synthetic oil and perfluoropolyether and adding nano-diamond. The preparation method comprises the following steps: firstly, coprecipitating and calcining to obtain metal-doped iron oxide nanoparticles, then carrying out double-layer coating modification, and finally carrying out mixed ball milling, ultrasonic treatment and magnetic separation purification on the metal-doped iron oxide nanoparticles and the composite carrier liquid. The saturation magnetization intensity of the magnetic liquid reaches 92-95 emu / g, the magnetic liquid can work for a long time under the high-temperature working condition, the heat conductivity coefficient is increased by 2-3 times, and the redispersibility is excellent. The problems that a traditional magnetic fluid is low in magnetic performance, prone to failure at high temperature, poor in dispersion stability and the like are solved, and the magnetic fluid is suitable for aerospace, high-end manufacturing, ship propulsion and other extreme scenes.

The invention discloses a preparation and application method of a super-lubricating coating based on a two-dimensional material. According to the invention, the charge density wave dynamic regulation and control mechanism of the fluorinated graphene and transition metal chalcogenide heterostructure is combined with the stress buffer characteristic of boron nitride, so that a slip interface with a low shear barrier is constructed on the atomic scale, and the energy dissipation in the friction process is remarkably reduced. A three-dimensional interpenetrating network of the helical carbon nanotubes and the hyperbranched polymer not only effectively inhibits stacking of two-dimensional materials, but also forms a multi-dimensional damage repair mechanism through solid-liquid phase change self-adaptive filling of the liquid metal and a boundary lubrication effect of the nano-diamond. Through the synergistic effect of the material system, the coating keeps the ultralow friction characteristic under the wide-range working condition, meanwhile, the coating has the composite protection capacity of abrasion resistance, high temperature resistance and corrosion resistance, and the intrinsic lubrication characteristic of the two-dimensional material is reserved while the compactness of the coating is guaranteed through the gradient cross-linking technology of ultraviolet curing and heat treatment.

The invention belongs to the field of coatings, and particularly discloses a super-hydrophobic organic coating as well as a preparation method and application thereof. The organic coating comprises the following components: organic resin and organic silicon modified composite particles; the mass ratio of the organic resin to the organic silicon modified composite particles is 1: (0.05-0.2); the composite particles contain nano diamond particles and a carbon material; the particle size of the carbon material is 1-30 [mu] m. A coating layer formed by the super-hydrophobic paint has the characteristics of super-hydrophobic performance and high hardness, the water contact angle of the coating layer is not less than 160 degrees, the water rolling angle of the coating layer is not more than 4 degrees, and the pencil hardness of the coating layer is 5H-7H. In addition, a coating formed by the coating has super-hydrophobic durability, specifically, after a friction experiment, the coating still keeps the super-hydrophobic capacity, the water contact angle is still larger than 150 degrees, and the coating has long service life during application.

The invention relates to the technical field of ceramic tiles, in particular to a sapphire single crystal diamond glaze super-wear-resistant ceramic tile and a preparation method thereof. The sapphire single crystal diamond glaze super wear-resistant ceramic tile is prepared from the following raw materials in parts by weight: high-purity alpha-Al2O3 powder, nano-diamond turbid liquid, rare earth modified zirconium silicate, a gas-phase transport agent, a lattice matching cosolvent and zinc oxide whiskers. According to the invention, the high-purity alpha-Al2O3 epitaxially grows on the surface of the nano-diamond to form an atomic-scale coherent interface, the bonding strength is high, the high hardness of sapphire and the wear resistance of diamond are integrated, the self-sharpening characteristic is endowed to the glaze layer by a micro-scale interlocking structure, a new hard interface is exposed in the wear process, the surface wear resistance is continuously maintained, and the service life of the glaze layer is prolonged. The problem of performance degradation after traditional materials are abraded is solved.