44results about How to "Enhanced Interfacial Interaction" patented technology

The invention relates to the field of sponge materials, and provides an antibacterial degradable sponge material and a preparation method thereof. The material is prepared from protocatechuic acid modified quaternized chitosan, quaternary ammonium salt grafted gelatin, sodium alginate, polyhydroxybutyrate, polycaprolactone, a polylactic acid-glycolic acid copolymer, hexamethylene diisocyanate, a foaming agent, nano cellulose, vitamin E, polyethylene glycol, triethylamine and dimethylformamide. Protocatechuic acid and quaternized chitosan are subjected to amidation modification, and chitosan and gelatin are subjected to quaternization treatment by adopting 2, 3-epoxypropyl trimethyl ammonium chloride, so that the antibacterial property and biodegradability of the material are improved. In the material preparation process, through vacuum degassing, foaming vacuum degree and humidity control and a multi-step drying process, it is ensured that the average pore size of the material is uniform (50-200 microns) and the porosity is high (50%-90%), and the obtained material has excellent antibacterial property and degradability and has wide application value.

The preparation method comprises the following steps: (1) mixing Chinese herbal medicine powder and a waterproof agent according to a ratio, sieving and uniformly stirring; (2) adding a proper amount of sticky powder and water, mashing into a ball, repeatedly beating and kneading into uniform mud, wrapping with a preservative film, and putting in a shade place for fermenting the mud; (3) kneading the fermented fragrant mud to be round, buckling the fragrant mud into the fragrant bead mold coated with the release agent, compacting, drawing the mold, and scraping off redundant parts; 4) placing the demolded aromatic beads in a dark, dry and ventilated place for drying in the shade, and repeatedly turning over; (5) hollowing out along the axis, and grinding and polishing to prepare the mixed aromatic beads; and 6) baking the polished mixed aromatic beads to prepare the waterproof Chinese herbal medicine mixed aromatic beads. The waterproof agent is added into the synthetic aromatic beads, then the waterproof agent is transferred to the surface through baking, and meanwhile, the interface interaction between the waterproof agent and the synthetic aromatic beads is enhanced, so that the synthetic aromatic beads are tightly wrapped by the waterproof agent, and the waterproof and lasting waterproof effects are achieved.

The invention discloses a high-strength tungsten-boron silicone rubber radiation shielding material, which is prepared from the following ingredients in parts by weight: 100 parts of methyl vinyl silicone rubber raw rubber, 30 to 50 parts of white carbon black, 90 to 240 parts of tungsten oxide coated boron carbide heterostructure particles, 4 to 10 parts of hydroxyl silicone oil and 1 to 2.5 parts of 2, 5-dimethyl-2, 5-bis-(tert-butylperoxy) hexane. The preparation method comprises the following steps: 1, surface modification of tungsten oxide particles; 2, boron carbide surface modification; 3, grafting the surfaces of the two; and 4, mixing and vulcanizing the raw materials. White carbon black and tungsten oxide coated boron carbide heterostructure particles are introduced into the material, so that the dispersity of tungsten oxide particles in a silicon rubber matrix is improved, the interface interaction between boron carbide and the silicon rubber matrix is enhanced, the high strength of the material is ensured, and the material has excellent mechanical strength and neutron / gamma ray comprehensive shielding performance; the method is easy for mass production and can be used in the field of radiation protection.

The invention relates to a polyether type high-flame-retardant halogen-free TPU material and a preparation method thereof, and belongs to the technical field of high polymer materials. Boron-containing polyethylene glycol and phosphorus-containing isocyanate are selected as synthetic raw materials of the polyether type TPU material, carboxylated silicon dioxide and aminated graphene are introduced at the same time, all the components have a synergistic effect, the tensile strength of the polyether type TPU material is effectively improved, and meanwhile the polyether type TPU material is endowed with good heat resistance and flame retardance.

The invention relates to an efficient heat shrink tube preparation method and equipment thereof. FEP granules and modified CaSi2 are fed into an extruder to be extruded, and an FEP pipe is obtained; placing the FEP pipe in an expansion box, taking out the FEP pipe after the pressure in the FEP pipe and the pressure in the expansion box reach expansion pressure and are stabilized for a period of time and the pressure and the temperature in the expansion box and the FEP pipe are reduced to normal pressure and low-temperature oil temperature, and respectively washing the inside and the outside of the FEP pipe with water until the product meets the use requirement; the modified CaSi2 is prepared by the following steps: reacting CaSi2 powder, DMF (Dimethyl Formamide), isocyanatopropyltriethoxysilane, 4-hydroxyphenylboronic acid pinacol ester, lanthanum 5-hydroxyisophthalate, organic tin and methylbenzene, washing, carrying out suction filtration, and drying, thereby obtaining the modified CaSi2. The lanthanum 5-hydroxyisophthalate disclosed by the invention is prepared from 5-hydroxyisophthalic acid and lanthanum nitrate; the heat-shrinkable tube prepared by the invention has a relatively high heat shrinkage ratio.

The invention relates to the technical field of degradable hyperbranched epoxy resin-carbon fiber composite materials, and particularly discloses a high-performance degradable imide skeleton hyperbranched epoxy resin-carbon fiber composite material and a preparation method thereof. The specific preparation process is as follows: (1) firstly synthesizing an imide skeleton-terminated sulfydryl hyperbranched polymer and hyperbranched epoxy resin; (2) chemically grafting carbon fiber cloth on the surface of the sulfydryl-terminated hyperbranched polymer to obtain modified carbon fiber cloth; and (3) fully infiltrating the modified carbon fiber cloth by blending hyperbranched epoxy resin and E51, and laminating, compounding and curing to obtain the high-strength and degradable epoxy resin-carbon fiber composite material. The composite material can be completely degraded in an alkaline alcohol solution, so that the carbon fiber is recycled and reused. The process is simple, and the composite material has high performance, high degradation efficiency and a recycling function and is expected to be used for manufacturing structural parts in the fields of wind power blades, aerospace and the like.

The invention provides a fluoride-free weather-resistant polyester film and a preparation method thereof, and relates to the technical field of polyester films, the fluoride-free weather-resistant polyester film comprises the following components by weight: 70-90 parts of a semi-dull polyethylene glycol terephthalate high-viscosity slice; 8 to 28 parts of weather-resistant master batch; the weather-resistant master batch is obtained by modifying titanium dioxide through a silane coupling agent to form a silicon-titanium core-shell material and then carrying out solid-phase polycondensation on the silicon-titanium core-shell material and a polyester raw material. According to the fluoride-free weather-resistant polyester film provided by the invention, the weather-resistant master batch is prepared by introducing a silicon-titanium core-shell material formed by modifying titanium dioxide with a silane coupling agent into PET polyester and then carrying out solid-phase polycondensation on the silicon-titanium core-shell material and the polyester raw material, so that the production cost is reduced by utilizing the synergistic effect of all the components, and meanwhile, the fluorine-free weather-resistant polyester film has the advantages that the fluorine-free weather-resistant polyester film is prepared; the prepared fluorine-free weather-resistant polyester film has excellent hydrolysis resistance and ultraviolet resistance, and the weather resistance of the fluorine-free weather-resistant polyester film is remarkably improved.

The invention relates to the technical field of coatings, in particular to an easy-to-clean coating material and a preparation method thereof.The coating material is prepared from, by weight, 100 parts of inorganic silicate solution, 5-10 parts of filler, 0.5-2 parts of dispersing agent, 0.5-2 parts of defoaming agent, 0.5-2 parts of flatting agent, 10-20 parts of super-hydrophilic functional component and 20-60 parts of deionized water; the super-hydrophilic functional component is a silanized carbon nano tube loaded with nano zinc oxide. Compared with the prior art, the coating obtained by the invention has excellent hydrophilicity, strong adhesive force, qualified impact resistance and easy cleaning compared with the coating obtained by a contrast, and in addition, the easy-to-clean coating material is simple in preparation method, can be prepared at room temperature, and can be produced on a large scale.

The present invention relates to the technical field of preparation of lithium ion battery electrode materials, and specifically to an aluminum-niobium co-doped lithium-rich layered positive electrode material and a preparation method thereof. The steps include: preparation of a cationic colloidal solution; preparation of a derivative carbon precursor solution; coating and sintering of a positive electrode powder material. The present invention uses an electrostatic spinning machine to directly spray the spinning solution into an alkaline solution, and simultaneously adds solution B. At the moment when the spinning solution is electrostatically spun into the alkaline solution, a precipitate is generated on the surface of the nanofiber and is quickly fixed, and a precipitation reaction also occurs inside the fiber through a diffusion mechanism. The generated precursor is not only orderly arranged, but also has a porous structure, which improves the rate performance of the electrode material, and can also form an interlocking structure between the fibers. The added lithium ion solution is deposited on the fiber surface, which can effectively improve the mechanical strength and conductivity of the positive electrode material, so that the material maintains stability during long-cycle use and reduces capacity attenuation.

The invention relates to the technical field of nylon alloy, and discloses a preparation method of a high-strength PA alloy plastic material, which comprises the following steps: mixing nylon 6, polyphenyl ether, polyphenyl ether amide, an antioxidant and an auxiliary agent, placing in a twin-screw extruder, and carrying out melt extrusion granulation to obtain the high-strength PA alloy plastic material. According to the invention, 2, 6-dimethyl-p-phenylene bis (oxyethylamine), succinyl chloride and the like are subjected to a polymerization reaction to obtain polyphenyl ether amide, and the polyphenyl ether amide contains a 2, 6-dimethyl-p-phenylene diether structural unit similar to polyphenyl ether and an amido bond structural unit similar to nylon 6, so that the polyphenyl ether amide can be used as a compatilizer, and the polyphenyl ether amide can be used as a compatilizer for preparing a composite material. The interface interaction between nylon 6 and polyphenyl ether is improved, and the compatibility of nylon 6 and polyphenyl ether is improved, so that the PA / PPE alloy composite plastic material with better mechanical properties is obtained, and the PA / PPE alloy composite plastic material shows higher bending strength, impact strength, tensile strength and elongation at break.

The invention discloses a chlorinated carbon nanotube, a chlorinated carbon nanotube-based conductive elastomer, a preparation method and an application. The preparation method comprises the following steps: placing a mixture of carbon nanotubes and a chlorine source precursor in a reaction tube, and then calcining the reaction tube at 400-900°C for 2-5h after vacuum sealing to obtain the chlorinated carbon nanotube; the mass ratio of the carbon nanotube to the chlorine source precursor is 1:(0.4-2.3). The chlorinated carbon nanotube prepared by the present invention can improve the surface activity of the carbon nanotube, help to enhance the direct interface interaction with the silicone elastomer, effectively improve the interface strength of the carbon nanotube and the matrix silicone rubber, solve the defects of the traditional carbon nano-based conductive filler and the silicone rubber interface bonding force being weak and difficult to achieve high conductivity and high elasticity; the prepared chlorinated carbon nanotube-based conductive elastomer has high conductivity, high tensile properties and high strength.

The present invention discloses a spunbond nonwoven fabric-based composite fiber membrane for photothermal desalination and a preparation method thereof. The method is as follows: immerse the spunbond nonwoven fabric in iron (Fe 3+ )-tannic acid complex solution, taken out and soaked in pyrrole ethanol solution, taken out and soaked in ammonium persulfate aqueous solution, taken out and fully rinsed with deionized water, dried, and the spunbonded nonwoven fabric-based composite fiber membrane is obtained. The method can prepare a spunbonded nonwoven fabric-based composite fiber membrane with a high solar water evaporation rate and seawater desalination rate, does not require a complex synthesis process, has mild preparation conditions, a simple preparation process, low cost, and is easy to achieve quantitative preparation.

This invention relates to the field of polymer materials technology, specifically to a method for preparing and applying a rigid polyimide foam reinforced with aluminum honeycomb. The method for preparing the rigid polyimide foam reinforced with aluminum honeycomb provided by this invention includes steps such as surface pretreatment of the aluminum honeycomb core material and fixing the pretreated aluminum honeycomb core material into a molding die. The rigid polyimide foam material reinforced with aluminum honeycomb obtained by this invention not only possesses high specific strength and high specific stiffness, but also inherits the excellent properties of polyimide foam such as high temperature resistance, flame retardancy, low smoke, and thermal insulation. The introduction of the aluminum honeycomb skeleton also improves the material's impact resistance and dimensional stability, making it an ideal multifunctional integrated lightweight structural material with promising application prospects.

This application discloses a heat-insulating and high-temperature resistant PPR composite pipe and its preparation method. The PPR composite pipe includes an inner layer, a middle layer, and an outer layer. The inner layer, by weight, includes the following components: 80-90 parts of PP-RCT, 1-3 parts of boron-nitrogen co-doped graphene aerogel, 0.5-1.5 parts of antioxidant, 3-8 parts of boron nitride, 1-3 parts of polyphthalamide, and 0.5-2 parts of dispersant. The middle layer includes PP-RCT, chopped glass fiber, maleic anhydride-grafted polypropylene, and ethylene-vinyl alcohol copolymer. The outer layer includes PP-RCT and an ultraviolet absorber. This PPR composite pipe has excellent heat insulation and high-temperature resistance properties.

The present invention relates to the technical field of graphene and functional natural rubber composite materials, and in particular to the preparation of a low heat generation, high thermal conductivity and long life solid tire based on high-strength and high-toughness ball-milled thiol-synergistically modified graphene / natural rubber, wherein the graphene is modified by a ball-milled thiol-synergistic modification process, and then a high-strength and high-toughness ball-milled thiol-synergistically modified graphene / natural rubber is prepared by an aqueous phase synergistic coagulation process and a mechanical blending method, thereby obtaining a low heat generation, high thermal conductivity and long life solid tire. By ball-milling modification of graphene oxide slurry, its edge carbon defects are increased, and the free radical content on its surface is increased, while the edge carbon defects can increase the load during subsequent thiol modification, and the surface free radicals can remove the free radicals generated by the molecular chain breakage caused by heat and oxygen attack at the initial stage of tire dynamic driving heat generation, reduce the thermal decomposition of the natural rubber matrix molecular chain, reduce the fatigue compression heat generation value, and thus delay the aging speed of the tire.

The invention discloses silica gel mold glue for preparing a carbon fiber protective shell, a preparation method of the silica gel mold glue and a silica gel mold, and relates to the technical field of silica gel materials. The silica gel mold glue for preparing the carbon fiber protective shell comprises the following components in parts by weight: 98-100 parts of polydimethylsiloxane, 2-5 parts of a cross-linking agent, 0.1-0.2 part of a catalyst, 1-3 parts of silane coupling agent modified calcium sulfate whiskers and 2-4 parts of modified organic montmorillonite. The organic montmorillonite and the calcium sulfate whiskers are added into the silica gel to form a composite material, and the mechanical property, the heat resistance and the dimensional stability of the silica gel can be remarkably improved through the synergistic effect, so that a high-heat and high-pressure preparation process of the carbon fiber protection shell is adapted, and the service life of a mold is prolonged.

The invention provides a preparation method of a polyamide-graphene composite heat-conducting film, and is characterized in that the preparation method comprises the following steps: (1) preparing polyamide resin; (2) preparing modified graphene; and (3) dissolving 100 parts by mass of polyamide resin, 2-5 parts by mass of lauryl sodium sulfate and 30-40 parts by mass of a curing agent in 80-90 parts by mass of acetone, mixing, then adding 3-7 parts by mass of modified graphene, and curing to obtain the polyamide graphene composite heat-conducting film. The heat-conducting film prepared by the invention has excellent electrical conductivity and wide market prospect.

The invention relates to a polydopamine nano-silver spherical antibacterial powder coating as well as a preparation method and application thereof. The preparation method comprises the following steps: treating resin powder by adopting a blocking agent under a microwave condition to prepare a spherical powder coating, then forming spherical particles with micro-nano pore structures in situ under the treatment of an etching agent, removing the blocking agent, and forming active sites in nano pores in situ by utilizing self-polymerization of dopamine, so as to prepare the spherical powder coating. And finally, the polydopamine / nano-silver spherical antibacterial powder coating is constructed through in-situ reduction of silver ions, and the flowability and the coating performance of the antibacterial powder can be effectively improved. Meanwhile, the coating has an antibacterial effect on escherichia coli and staphylococcus aureus, and the antibacterial rate can reach 99.9% or above. The preparation method is simple, low in cost and high in repeatability, has universality and can be widely applied to object surface antibiosis.

The invention relates to the technical field of cables, and discloses a high-thermal-conductivity creep-resistant corrosion-resistant composite reinforced core aluminum stranded wire and a preparation method thereof.The high-thermal-conductivity creep-resistant corrosion-resistant composite reinforced core aluminum stranded wire comprises a composite reinforced core and at least one aluminum stranded layer or aluminum alloy stranded layer concentrically stranded outside the composite reinforced core; the composite reinforced core comprises a surface modified carbon fiber reinforced body and a metal matrix; the surface modified carbon fiber reinforcement comprises a carbon fiber reinforcement and a gradient metal transition layer deposited on the surface of the carbon fiber reinforcement; the gradient metal transition layer comprises a bonding layer deposited on the surface of the carbon fiber reinforcement and a main transition layer deposited on the bonding layer; according to the invention, the composite reinforced core is formed by taking the carbon fiber as the reinforcement and the metal as the matrix to replace the traditional steel core, and the gradient metal transition layer is constructed on the surface of the carbon fiber reinforcement, so that the interface reinforcement and function integration are realized, and the mechanical, heat-conducting, creep-resistant and corrosion-resistant performances of the wire are comprehensively improved.

The application relates to the technical field of heat-conducting composite materials, and discloses a heat-conducting flexible composite phase change material as well as a preparation method and application thereof. The method comprises the following steps: modifying a thermoplastic elastomer by grafting maleic anhydride as a grafting agent; modifying a heat-conducting filler by surface hydroxylation with a strong base as a surface modifier; melt blending the grafted thermoplastic elastomer with a phase change material, and adding the surface-modified heat-conducting filler to crosslink, so as to obtain the heat-conducting flexible composite phase change material. By regulating and controlling the micro-interface structure of the filler-matrix, the interface interaction between the filler and the matrix is enhanced, the heat-conducting-support integrated structure is constructed, the interaction between the filler and the matrix is improved, the dispersion of the filler in the matrix is improved, the interface phonon scattering is reduced, the heat-conducting flexible composite phase change material has good heat-conducting performance, and meanwhile, the heat-conducting flexible composite phase change material also has strong mechanical performance and high energy storage density.

The invention provides high-adhesion LED-UV metal printing ink and a preparation method thereof, and belongs to the technical field of ink. The preparation method comprises the following steps: preparing the surface modified nano composite powder; preparing a composite anti-aging agent; preparing an acrylate prepolymer; preparing a modified prepolymer; mixing to prepare the printing ink. The preparation method comprises the following steps: preparing nano-composite powder with ultraviolet resistance from tetrabutyl titanate and zinc nitrate hexahydrate as raw materials, blending the nano-composite powder into slurry, adding a sodium silicate solution and cerous sulfate, carrying out a reaction, carrying out surface modification on the nano-composite powder, inhibiting the photocatalytic activity of the nano-composite powder, and carrying out surface modification on the nano-composite powder. After the anti-aging agent is added into the ink, the anti-aging performance of the ink can be effectively improved, and the anti-discoloration performance of the ink can be improved.

The invention provides a preparation method of an antistatic high-temperature-resistant adhesive tape. The preparation method comprises the following steps: S1, carrying out hydrophilic treatment on one side of a polyimide film; s2, adding the silver nanowire-montmorillonite composite material into water, and uniformly dispersing the silver nanowire-montmorillonite composite material to obtain a silver nanowire-montmorillonite composite material dispersion liquid; s3, adding sodium carboxymethyl cellulose into water, and uniformly mixing and stirring to obtain a sodium carboxymethyl cellulose aqueous solution; s4, mixing the solution prepared in the step S2 and the solution prepared in the step S3, and then coating the hydrophilic side of the polyimide film with the mixed solution to obtain an antistatic high-temperature-resistant layer; and S5, adding copper chloride dihydrate into water, stirring and dissolving, adding water-borne epoxy resin and triethylene tetramine, uniformly mixing and stirring, and coating the outer side of the antistatic high-temperature-resistant layer to obtain the adhesive layer. The silver nanowires are uniformly dispersed and loaded on the surface of the stripped flaky montmorillonite to form a continuous conductive network, so that not only is the heat-conducting property of the flaky montmorillonite maintained, but also the conductivity of the flaky montmorillonite is improved.

The invention provides a vehicle-mounted refrigerator inner container and a preparation method thereof, materials for preparing the vehicle-mounted refrigerator inner container comprise matrix resin, a composite heat conduction agent, a reinforcing agent, a compatilizer, a lubricant and an antioxidant, the matrix resin comprises an acrylonitrile-butadiene-styrene copolymer, and the composite heat conduction agent comprises an acrylonitrile-butadiene-styrene copolymer. The composite heat conduction agent comprises carbon nanotubes, graphene and aluminum nitride. The composite heat conduction agent is added, the heat conduction coefficient of the inner container of the vehicle-mounted refrigerator is increased, heat conduction is facilitated, and therefore the refrigeration efficiency is improved, and energy is saved.

The application discloses a supported metal element synergistically modified copper-based catalyst and a preparation method and application thereof. The catalyst is composed of metal copper, metal gallium, an auxiliary element M and a carrier SiO2. In the preparation method, a Cu-Ga catalyst precursor is prepared through an ammonia evaporation method, and then the auxiliary element is added through ball milling. Mechanical shearing force and impact generated in the milling process can promote sufficient contact and uniform mixing of the auxiliary element and the precursor, so that the auxiliary element is more uniformly distributed and a strong interaction is formed. Under the condition that the hydrogen ester ratio is about 200, the application can still maintain a high methyl 3-hydroxypropionate conversion rate and 1,3-propanediol selectivity.

The invention relates to a water-based inorganic zinc-rich anticorrosive paint and a preparation method thereof, and relates to the technical field of anticorrosive paints.The water-based inorganic zinc-rich anticorrosive paint is prepared from, by weight, 20-30 parts of silicate solution, 40-55 parts of zinc powder, 7-16 parts of modified Mxene and 0.3-0.8 part of auxiliaries; the modified Mxene is obtained by sequentially carrying out freeze-thaw cycle treatment and microwave plasma treatment on Mxene. On the basis of the existing water-based inorganic zinc-rich anticorrosive paint, specific modified Mxene is introduced, so that the anti-slip performance stability of the obtained water-based inorganic zinc-rich anticorrosive paint under extreme conditions of high heat, high humidity and the like is remarkably improved, and the water-based inorganic zinc-rich anticorrosive paint is endowed with excellent anticorrosive performance and anti-slip performance; and the long-term use requirements of various large building steel members in a severe environment can be met, and the defects in the prior art are overcome.

The present application relates to a kind of single-component intumescent flame retardant with layered structure and super strong carbon formation ability and its preparation method, the method of the present application first 3,4-dihydroxybenzaldehyde and organic diamine rich in benzene ring or nitrogen heterocycle are reacted to prepare intermediate product, then intermediate product and phytic acid are organically combined, by esterification crosslinking reaction, construct macromolecular crosslinking network, prepare the single-component intumescent flame retardant with layered structure and super strong carbon formation ability finally.Compared with general ammonium phytate flame retardant, the flame retardant prepared in the present application has wash resistance, and can form super strong intumescent dense and hard carbon layer when burning.Polymer materials can be simultaneously endowed with excellent flame retardant properties and flame-retardant durability.In addition, since the flame retardant of the present application has layered structure, it can be more uniformly dispersed in polymer, and can significantly improve the mechanical properties of polymer.The preparation process of the flame retardant of the present application is simple, practical, and has very broad application prospect.

The invention discloses a preparation method of a modified wheat straw composite board based on ZnCl2, and belongs to the technical field of board manufacturing, and the preparation method comprises the following steps: S1, chopping wheat straw, adding the chopped wheat straw into 0.5 mol / L hydrochloric acid, carrying out acid treatment, adjusting the pH value to be neutral by using deionized water after the treatment is completed, and carrying out suction filtration treatment to obtain a neutral filter material; s2, mixing the neutral filter material with the mixed solution, then adding NaClO powder for mixing, and then adjusting the pH value of the mixed solution to 10 through a NaOH solution to obtain TEMPO oxidized pulp fibers; s3, TEMPO oxidized pulp fibers are subjected to ethanol water cleaning treatment and then dispersed in a ZnCl2 solution to be evenly mixed, suction filtration treatment is conducted, a filter cake B is obtained, S4, the filter cake B, chitin and acetic acid are evenly mixed according to the mass ratio of 3: 4: 1 and then subjected to suction filtration treatment, a hot-pressing filter material is obtained, and S3, the hot-pressing filter material is put into a hot-pressing mold and subjected to hot pressing through a hot press to obtain the composite board. According to the invention, the preparation of the formaldehyde-free and full-biomass-source high-performance board is realized.

The invention discloses an insulating material for a light submarine cable, a preparation method of the insulating material and the light submarine cable, and relates to the technical field of submarine cables. The insulation material for the light submarine cable prepared by the invention is prepared from the following raw material components in parts by weight: 65.4 to 65.6 parts by mass of modified polypropylene, 13 to 15 parts by mass of modified boron nitride, 19 to 21 parts by mass of a composite flame retardant and 0.4 to 0.6 part by mass of an antioxidant, wherein the modified polypropylene is obtained by modifying polypropylene with allyl-terminated cyclotriphosphazene; the modified boron nitride is obtained by modifying hydroxylated hexagonal boron nitride with vinyl trimethoxy silane; the composite flame retardant is prepared by compounding 12.92 to 14.28 parts by mass of ammonium polyphosphate and 6.08 to 6.72 parts by mass of melamine; the insulating material prepared by the invention is relatively good in flame retardance, thermal conductivity and mechanical property.

The invention belongs to the technical field of electro-catalytic materials, and provides a nickel and sulfur modified biomass derived carbon-based sulfide electrode material as well as a preparation method and application thereof. The preparation method comprises the following steps: (1) uniformly dispersing the biomass material in deionized water; (2) adding dopamine hydrochloride, tris (hydroxymethyl) aminomethane, cobalt nitrate hexahydrate and nickel nitrate hexahydrate into the solution obtained in the step (1), fully stirring at room temperature for reaction, and after the reaction is completed, washing and drying to obtain a precursor of a nickel and sulfur modified biomass derived carbon-based sulfide electrode material; and (3) performing high-temperature carbonization and vulcanization reaction on the precursor obtained in the step (2) and a sulfur source in a protective atmosphere, and obtaining the nickel and sulfur modified biomass derived carbon-based sulfide electrode material after the reaction is completed. The invention provides a nickel and sulfur modified biomass derived carbon-based sulfide electrode material, the material is based on nickel and sulfur modification, an electronic structure of an active site is synergistically regulated and controlled through a specific modification process, and meanwhile, the interaction between biomass carbon and heterogeneous active components is enhanced through modification of anions and cations.

The present application relates to the technical field of mesoporous materials, and particularly to an interface pore rich-hydroxyl silica with monodispersity and uniform size, and a preparation and application thereof. The present application provides a preparation method of the interface pore rich-hydroxyl silica with monodispersity and uniform size. The preparation process is to perform a reaction in a water-oil two-phase system. The oil phase is an easily volatile non-water-soluble organic solvent such as n-hexane. Caprylic triglyceride is added to the oil phase. A non-surfactant pore-forming scheme is adopted. N-octanol and propyl silicate are used as auxiliary pore-forming agents. Sodium silicate is used as a silicon source. Ethyl acetate is used as a catalyst. The synthesis reaction is performed under the condition that the heating temperature is 25-45 DEG C. The prepared silica presents a spherical structure, has uniform particle size, high dispersity, controllable diameter, an open pore structure on the surface and rich silicon hydroxyl, and exhibits good biological safety. The interface pore rich-hydroxyl silica has a great application prospect in the fields of biomaterials, medical adjuvants, food, daily chemicals, cosmetics, electronics and the like.