96 results about "Ion permeation" patented technology

The invention relates to the technical field of concrete materials, and discloses rapidly-reinforced high-performance sprayed concrete for an existing tunnel lining and a preparation method of the rapidly-reinforced high-performance sprayed concrete. The sprayed concrete is prepared from the following raw materials in parts by weight: 300 to 350 parts of low-calcium high belite sulphoaluminate cement, 80 to 100 parts of superfine slag powder, 3 to 8 parts of a trigger type activating agent, 5 to 15 parts of slow-release particles, 2 to 5 parts of nanogel, 800 to 900 parts of fine aggregate, 800 to 900 parts of coarse aggregate, 30 to 50 parts of copper-plated steel fiber, 0.8 to 1.2 parts of polypropylene fiber, 30 to 40 parts of a viscosity-adjusting accelerator, 10 to 20 parts of a water reducing agent and 160 to 180 parts of water. The sprayed concrete is high in compressive strength and good in durability, the double threats of chemical corrosion and chloride ion permeation / steel bar corrosion are cooperatively solved, and the requirement for rapid reinforcement of tunnels and underground engineering is met.

The invention provides high chloride ion permeation resistance steel fiber fine aggregate concrete and a preparation method thereof. The high chloride ion permeation resistance steel fiber fine aggregate concrete comprises the following raw materials in parts by weight: 200-300 parts of cement; 30 to 50 parts of metakaolin; 100 to 200 parts of fly ash; 50 to 100 parts of mineral powder; 1-8 parts of nano silicon dioxide; 800 to 1000 parts of sand; 800 to 1000 parts of stone; 10 to 60 parts of steel fiber; 150 to 200 parts of water; and 5-20 parts of a water reducing agent. The steel fiber fine aggregate concrete with high chloride ion permeation resistance has the advantages of improved mechanical properties and durability, extremely high chloride ion permeation resistance, excellent volume stability, low material cost, economic feasibility of large-scale application, and wide application prospect. And the strict service requirements of the urban rail transit ballast bed under the long-term dynamic load, stray current and erosion medium coupling effect are precisely met.

The invention relates to the technical field of material surface corrosion prevention, in particular to a spraying method for a heavy anti-corrosion coating of a port steel structure. The method comprises the following steps that (1) sand blasting derusting treatment is conducted on a steel structure base body, so that the cleanliness of the steel structure base body reaches the Sa2.5 level, and the roughness is controlled to range from 40 micrometers to 75 micrometers; 2) coating the treated substrate with epoxy zinc-rich primer, and doping graphene modified zinc powder accounting for 1-3% of the total mass of the primer to form a primer layer with a dry film thickness of 60-80 [mu] m; (3) after the primer layer is cured, the primer layer is coated with epoxy micaceous iron oxide intermediate paint, aluminum tripolyphosphate accounting for 2-5% of the total mass of the intermediate paint is further added into the epoxy micaceous iron oxide intermediate paint, and an intermediate paint layer with the dry film thickness being 150-200 microns is formed; 4, the middle paint layer is coated with weather-resistant finish paint, and a finish paint layer with the dry film thickness being 60-80 microns is obtained.According to the method, the adhesive force, chloride ion permeation resistance, salt fog resistance (larger than or equal to 3000 hours) and weather resistance of the coating are remarkably improved, the method is suitable for the harsh marine environment, and the service life of the steel structure can be prolonged to 20 years or above.

Provided is a versatile nonwoven fabric having excellent heat resistance and mechanical strength and applicable to applications requiring heat resistance; or a nonwoven fabric having excellent heat resistance, mechanical strength, and permeability. Moreover, provided is a separator for electrochemical elements having excellent heat resistance and mechanical strength. Furthermore, provided is a membrane support having excellent heat resistance, mechanical strength, and ion permeability.The nonwoven fabric of the present invention comprises a polymethylpentene component and a polyethylene component, wherein the polyethylene component is fused, and wherein the polymethylpentene component accounts for 30% by volume or more of the total fibers constituting the nonwoven fabric, and the polyethylene component accounts for 30% by volume or more of the total fibers constituting the nonwoven fabric. The separator for electrochemical elements of the present invention comprises the nonwoven fabric. Another nonwoven fabric of the present invention comprises core-sheath composite fibers having a polyethylene component as a sheath component and a polymethylpentene component as a core component, wherein the polyethylene component as the sheath component of the core-sheath composite fiber is fused, wherein the polymethylpentene component accounts for 30% by volume or more of the total fibers constituting the nonwoven fabric, and the polyethylene component accounts for 30% by volume or more of the total fibers constituting the nonwoven fabric, wherein a thickness of the nonwoven fabric is 100 μm or less, and the nonwoven fabric has a direction with a tensile strength per mass per unit area of 2.0 N / 5 cm-width or more, or wherein a ratio (L / D) of a fiber diameter (D, unit: μm) to a length (L, unit: μm) of the core-sheath composite fiber is 350 or more. The membrane support of the present invention comprises the other nonwoven fabric.

The invention discloses a recycled concrete permeability detection system and method, and relates to the technical field of material science, and the system comprises an electric field auxiliary module which applies a preset voltage gradient through an electric field auxiliary device, obtains initial ion concentration distribution data and a current change signal from a recycled concrete sample, and obtains a reference parameter of a permeation process; the modeling and simulation module is used for constructing a pore structure model by adopting a finite element simulation method according to the reference parameters, fusing an ion migration rate and a non-uniform distribution characteristic, and determining a dynamic regulation and control scheme under the action of an electric field; according to the recycled concrete permeability detection system and method, dynamic regulation and control and real-time monitoring of ion permeability behaviors are achieved, the barrier property evaluation precision of recycled concrete is remarkably improved, and efficient technical support is provided for durability optimization of engineering materials.

The invention belongs to the technical field of high polymer materials, and particularly relates to a composite proton exchange membrane and a preparation method thereof. According to the prepared composite proton exchange membrane, the perfluorosulfonic acid resin capable of being industrially applied is selected as a base membrane material, and the modified polybenzimidazole polymer resin is added, so that the problem of high ion permeation rate of a perfluorosulfonic acid proton exchange membrane in the prior art is solved; interpenetration and permeation of the electrolyte in the use process of the perfluorosulfonic acid proton exchange membrane can be reduced, cross contamination of positive and negative electrolyte is greatly reduced, and the service life of the electrolyte is prolonged. The PBI is functionalized, so that the proton transmission capacity of the PBI is improved, and the proton exchange membrane formed by blending the functionalized PBI and the perfluorinated sulfonic acid resin can keep excellent vanadium resistance, excellent proton transmission capacity and relatively high ion selectivity at the same time. The preparation process is simple, and the prepared proton exchange membrane can meet the performance and long-term stability use requirements of a flow battery.

A problem to be solved by the present invention is to provide an ion exchange membrane that can increase the surface area of a membrane effective for ion permeation, properly decreases the electric resistance of a flow passage between membranes and the attachment of a contaminating substance thereto, also enhances the mechanical strength of the membrane itself, and further, is less deformed or damaged due to swelling over a wide range of salt concentrations and even if there is a large difference in salt concentration between two solutions contacted with the membrane. The present invention provides an ion exchange membrane having a concavo-convex shape, wherein the ion exchange membrane has a flat portion in the vicinity of ends, and a convex curve and a concave curve resulting from curvatures of the ion exchange membrane itself form a convex part and a concave parts, respectively, in the concavo-convex shape of the ion exchange membrane, wherein the convex part extends linearly or curvedly, the concave part between the convex parts is flat, the concave part includes a first concave part adjacent to the convex part in the lateral direction of the convex part, along the longitudinal direction of the convex part, the convex part has an apex and a side face in the longitudinal direction, and the side face is inclined from the apex toward the first concave part.

The invention provides special modified anticorrosive paint for a marine steel structure and an environment-friendly preparation method of the special modified anticorrosive paint. The special modified anticorrosive paint is prepared from the following components in parts by weight: 35 to 45 parts of inorganic silicate binder, 10 to 20 parts of composite nano reinforcement, 2 to 5 parts of modified graphene, 20 to 30 parts of silane modified inorganic filler, 15 to 20 parts of deionized water, 0.5 to 1 part of dispersing agent, 0.3 to 0.6 part of defoaming agent, 0.3 to 0.5 part of flatting agent, 0.4 to 0.8 part of thixotropic agent and 0.1 to 0.3 part of pH stabilizer. The two-dimensional barrier of the modified graphene, the laminated barrier of the silane modified flaky filler, the chemical corrosion inhibition of the anti-rust filler and the microcosmic enhancement effect of the composite nano reinforcer cooperate with one another, so that a compact coating with few defects and a zigzag permeation path is formed, and the chloride ion permeation resistance is excellent.

This invention discloses a high-precision patterned hydrogel, its preparation method, and a flexible electronic device. The preparation method of the high-precision patterned hydrogel includes the following steps: using a buffer solution containing polyethylene glycol thiol derivatives and hydrogen peroxide as a prepolymer solution (prepolymer solution 1), applying the prepolymer solution 1 to the surface of a substrate, and reacting to obtain a substrate with a thin film; using an aqueous solution containing a monoene water-soluble monomer, a diene water-soluble monomer, a water-soluble photoinitiator, and a polymerization inhibitor as a prepolymer solution (prepolymer solution 2), immersing the substrate with the first thin film in the prepolymer solution 2; after immersion, washing and solvent removal to obtain a substrate with a dry film; photolithographically patterning the substrate with the dry film, and then removing unexposed areas with a developer to obtain the high-precision patterned hydrogel. This invention can effectively improve the precision of the patterned hydrogel, while also giving the high-precision patterned hydrogel high biocompatibility and ion permeability.

The invention provides an impervious concrete composition as well as a preparation method and application thereof, and belongs to the technical field of concrete building construction. The impermeable concrete composition comprises cement, a mineral admixture, aggregate, an additive and an auxiliary component, the mass ratio of the mineral admixture to the auxiliary component is (150-250): (5-10); the mineral admixture is prepared from steel slag powder, phosphorus slag powder and bentonite in a mass ratio of (5-15): (5-15): (20-30); the auxiliary component comprises a nano composite material and latex powder in a mass ratio of (1-5): (1-5); the nano composite material is prepared from nano manganese oxide, nano silicon dioxide and nano cuprous oxide in a ratio of (1-3): (5-10): (2-5). The anti-seepage concrete has the advantages of small water seepage height, small chloride ion permeability coefficient, high maximum anti-seepage pressure and excellent anti-seepage performance.

A single-use disposable potentiometric reference sensor includes an insulating base substrate; a reference electrode disposed on the insulating base substrate, wherein the reference electrode is a silver-silver chloride electrode; an inner layer disposed on the reference electrode, wherein the inner layer is an amorphous salt layer including an amorphous polysaccharide and a salt having equally-mobility cations and anions; and a semi-permeable cover membrane disposed over the inner layer, wherein the semi-permeable cover membrane has water vapor and ion permeability.

A process for manufacturing the composition coating may include selecting a wood or masonry material substrate and utilizing a sol-gel comprising a silane or silane derivative and metal oxide precursor to coat the substrate. The process may utilize an all solution process or controlled environment for manufacturing a composition coating that prevent wetting and / or staining of a substrate. The composition coatings for treating wood or masonry materials improves weather-resistance, microbial resistance, stain-resistance and fungal-resistance of the materials. The reduced permeability of the resulting masonry materials can also delay or inhibit degradation caused by permeation of ions such as chlorides and sulfates. In addition, a stain comprising the composite solution and pigments may impart additional property to wood or masonry materials whilst retaining or improving the original appearance, particularly for the visibility and contrast of the wood grain as seen after the application of the coating.

An ion permeable membrane for selective permeation of a target ion, preferably lithium, through the membrane, the membrane comprising a target ion permeable composite comprises a target ion permeable ceramic and at least one organic polymer associated with the target ion permeable ceramic.

The invention discloses low-heat slag cement and a preparation method thereof. The cement is prepared from the following components in percentage by weight: 50%-70% of high belite Portland cement clinker, 20%-50% of active slag micropowder, 4%-6% of gypsum, 1%-5% of composite functional filler, 0.1%-1.0% of a construction performance regulator and 0.01%-0.1% of a grinding aid. The preparation method comprises the following steps: preparing the rapidly cooled high belite clinker; the slag and the sodium sulfate-triethanolamine composite exciting agent are jointly ground to prepare high-activity slag micro powder; all the components are jointly ground in proportion until the specific surface area is 300-400 m / kg, and the proportion of particles with the particle size of 3-30 microns is controlled to be larger than 70%. Through the synergistic effect of multiple components, low hydration heat (less than or equal to 230kJ / kg in 7 days), high early strength (more than or equal to 12MPa in 7 days) and high later strength (more than or equal to 32.5 MPa in 28 days) are realized at the same time, and the concrete has excellent chloride ion permeation resistance and sulfate attack resistance, is excellent in construction performance, and is particularly suitable for engineering construction of mass concrete and in a severe environment.

The invention discloses a self-repairing underwater detection patch of a bionic starfish wrist foot friction nano-generator and a preparation method and application of the self-repairing underwater detection patch, and belongs to the technical field of underwater detection equipment. Comprising the following structures: a bionic topological structure, a gradient dielectric layer, an anti-ion permeation coating, a dynamic self-repairing material layer, a bionic mucus self-sealing layer and a silver-carbon nanotube composite electrode. Compared with an existing patch, the self-repairing underwater detection patch of the bionic starfish wrist foot friction nanometer generator has the advantages that the charge density (58 [mu] C / mvs.1. 1 [mu] C / m), the self-repairing efficiency (92% vs.0%), the compressive strength (78 MPa vs.25 MPa) and the power density (1.2 W / mvs.0.05 W / m) respectively achieve the advantages of 52.7 times, base-free improvement, 3.1 times and 24 times.

This invention relates to the field of marine engineering subgrade material preparation technology, and discloses a method for preparing high-performance subgrade materials based on fly ash modification. The method includes: spraying atomized activator onto the surface of fly ash particles, using inorganic acid to etch micro-pits on the surface and depositing mineral salts in situ; mixing activated fly ash with aggregates and an alkaline activator to prepare a subgrade mixture; applying high-frequency vibration pressure during compaction to inject the activating force into the micro-pits; and utilizing the osmotic pressure difference generated by the dissolution of mineral salts to drive the hydration products to grow outward from the micro-pits. This invention, through the concentration gradient generated by the mineral salt enrichment layer, causes the hydration products to form a reverse-growth interwoven structure within the pores, achieving a shift from passive barrier to active sealing defense, thereby improving the material's mechanical anchoring strength and resistance to ion penetration in high-salt marine environments.

Provided is a laminate for a nonaqueous electrolyte secondary battery superior in ion permeability under applied pressure. A laminate for a nonaqueous electrolyte secondary battery in accordance with the present disclosure, including a porous layer and a particle layer provided on at least one surface of the porous layer, the laminate satisfying the following Formula (1):Ra / Sa≥0.80  (1)(in the Formula (1), Ra represents an arithmetic mean roughness [μm] measured by contact-type measurement on a surface on which the particle layer is provided and Sa represents an arithmetic mean roughness [μm] measured by noncontact-type measurement on the surface on which the particle layer is provided.)

The invention belongs to the technical field of building materials, and discloses a marine corrosion-resistant cementing material based on metallurgical solid waste and a composite mineralization activator and a preparation method thereof.The marine corrosion-resistant cementing material is prepared from, by mass, 60-89% of metallurgical solid waste powder, 10-38% of the composite mineralization activator and 0-3% of auxiliary components. The marine corrosion-resistant cementing material provided by the invention takes the metallurgical solid waste powder as a main raw material, so that efficient resource utilization of metallurgical solid wastes is realized, dependence on natural resources is reduced, the problem of environmental pollution caused by solid waste stockpiling is reduced, and the marine corrosion-resistant cementing material has good environmental protection benefits and economic benefits. The marine corrosion-resistant cementing material has the properties of low hydration heat, high strength, excellent chloride ion permeation resistance, freezing and thawing resistance, chemical corrosion resistance and the like, is particularly suitable for severe environments such as marine engineering and the like, and can effectively prolong the service life of an engineering structure and reduce the maintenance cost.

The invention relates to the crossing field of concrete structures and energy storage, in particular to a concrete supercapacitor structure, a manufacturing method and a testing method.The concrete supercapacitor structure comprises a plurality of layers of plates formed by mechanical bearing concrete, cavities are formed in the plates, and the cavities are filled with ion permeation concrete; the electrode plates are laid between the plates formed by the mechanical bearing concrete, the capacitor is prepared through concrete, the concrete structure is a binary composite cavity structure, cavities are reserved in the mechanical bearing concrete, and the concrete super capacitor is finally formed through ion permeation concrete filling, electrode plate laying and layer-by-layer arrangement. Compared with the prior art, the mechanical property and the energy storage capacity are relatively optimized, the whole supercapacitor is manufactured through a 3D printer, materials and labor cost are saved to a certain extent, the characteristics of different kinds of concrete are fully played, and therefore the supercapacitor has the advantages of being low in cost, long in service life, safe and wide in application range.

The invention relates to the technical field of wastewater treatment devices, in particular to a wastewater emission reduction and recovery device for treating alkaline water prepared by an ionic membrane method. Comprising a pretreatment box and an ion permeation assembly, the ion permeation assembly comprises a first-stage permeable membrane, a second-stage permeable membrane and a third-stage permeable membrane which are sequentially connected end to end, a water outlet of the pretreatment box is communicated with a water inlet of the first-stage permeable membrane, and a first-stage filter screen and a second-stage filter screen are arranged in the pretreatment box; two waste liquid tanks for receiving primary filter screen impurities and secondary filter screen impurities are arranged on the outer side of the pretreatment tank respectively, the liquid outlet ends of the waste liquid tanks are communicated with a water inlet of the secondary permeable membrane through a communicating pipe, a tertiary filter screen is arranged on the communicating pipe, a waste liquid tank for receiving tertiary filter screen impurities is arranged on the communicating pipe, and a filter pressing and water pumping assembly is arranged in the waste liquid tank. And a deslagging assembly is arranged in the pretreatment box and the communicating pipe. According to the invention, the wastewater can be subjected to multi-stage filtration and recycling, the water yield of purified water is improved, and the discharge amount of terminal strong brine is reduced.

The invention relates to the technical field of bioelectricity signal monitoring, in particular to an implantable biofilm wireless monitoring sensor and system based on AgCl / Ag impedance conversion, and the system comprises an anode integration module, a cathode verification module, a frequency analysis module, a closed-loop regulation and control module and a packaging state evaluation module. According to the method, by directly collecting the current of the closed-loop circuit of the implant and the charge transfer resistance of the biological membrane, original interface information is provided for subsequent analysis, the change rate of the resistivity of the silver chloride is detected, the resonant frequency deviation of the silver / silver chloride antenna is synchronously measured, a high-sensitivity anomaly recognition mechanism is constructed, and the early-warning capability of interface instability or material degradation in the early stage is improved; extracting a circuit phase angle and an antenna Q value after abnormity identification, calculating a frequency compensation coefficient by applying frequency domain least square fitting, controlling a silver chloride / silver conversion rate, optimizing wireless signal transmission, monitoring a packaged water vapor transmission rate and an ion permeation flux, and ensuring long-term reliability of implanted equipment.

Disclosed are a high-salinity waste heat sewage treatment system and method based on self-power supply of light energy and osmotic energy, in which the high-salinity waste heat sewage is subjected to pretreatment and nanofiltration to remove impurities such as oil stains and organic matter; the sewage is branched by a three-way valve to a dilution unit to obtain low-salinity sewage; the high-salinity waste heat sewage is introduced into a high-concentration tank of an ion osmotic power generation device through a first valve, a third valve and a fifth valve, and the low-salinity waste heat sewage is introduced into a low-concentration tank of the ion osmotic power generation device through a second valve and a fourth valve, and ion migration is driven to generate power under the action of osmotic energy; the electric energy of the ion osmotic power generation is coupled with photovoltaic power generation and photo-thermal power generation to be stored in a storage battery group to supply power to a capacitive deionization device, so that self-power supply of the system is realized; the sewage is introduced into the capacitive deionization device at a certain speed through a sixth valve to remove salt; and the deionized water is branched by a three-way valve to flow into the dilution unit and to be subjected to final treatment.

The invention relates to the technical field of lithium ion batteries, and provides a polymer electrolyte and high-conductivity particle co-coated high-nickel ternary positive electrode as well as a preparation method and application thereof. Wherein the polymer electrolyte comprises a polyacrylate electrolyte, and the high-conductivity particles comprise a high-conductivity oxide and / or a high-conductivity nitride. Directional loading of high-conductivity particles on the surface of the high-nickel ternary positive electrode is realized through a radio frequency plasma technology; and coating the surface of the high-nickel ternary positive electrode with a uniform and thin polymer coating in a thermal polymerization manner. The polymer electrolyte and the conductive particles are selected as a two-component coating layer, an effective electron and ion permeation network is provided for the composite positive electrode in the all-solid-state battery, and the electrochemical performance of the solid-state battery is improved.

The invention discloses a GO and NS modification-based chloride ion permeation-resistant cement repair material and a preparation method thereof, and the preparation method comprises the following steps: respectively pretreating graphene oxide GO and nano silicon dioxide NS to remove impurities; respectively carrying out surface modification treatment on GO and NS; the preparation method comprises the following steps: respectively weighing GO and NS according to a ratio, adding magnetorheological fluid into the weighed mixture of GO and NS, and respectively combining the magnetorheological fluid with GO and NS; gO and NS are combined with each other under the action of an external magnetic field on the magnetorheological fluid, so that a GO-NS composite material is obtained; and mixing the GO-NS composite material with cement paste, and stirring to obtain the modified cement material. During repairing, the cement repairing material only needs to be directly coated on the surface of the masonry. According to the invention, by adding the nano material GO-NS composite material, the filling property of the cement material can be obviously improved, and the cement material has better repairability for defects of masonry structures in coastal areas, fills masonry gaps and resists chloride ion permeation.

The invention belongs to the technical field of medical gauze, and particularly relates to antibacterial healing-promoting gauze and a preparation method thereof. According to the invention, the copper-containing functional material can achieve an excellent antibacterial effect through electrostatic adsorption, ion permeation and destruction of a bacterial oxidation-reduction steady state. The gauze prepared by the invention can resist bacteria and drug resistance through multi-mechanism synergistic sterilization: contact sterilization, ion permeation sterilization and bacterial redox-destroying steady-state sterilization, multi-mechanism synergistic sterilization is realized through the effects, and the antibacterial rate can be gt; and the drug resistance of antibiotics is avoided. In addition, the prepared antibacterial gauze can achieve integrated wound surface management, and the functional material can simulate glutathione peroxidase, remove excessive free radicals on the wound surface, improve the tissue repair process and synchronously meet the antibacterial and healing promoting requirements.

The utility model discloses an easy-to-disassemble cotton thread permeation reference electrode membrane module which comprises a membrane pressing seat, a membrane pressing plate, a membrane pressing plate, a membrane pressing plate, a membrane pressing plate and a membrane pressing plate, wherein an inner hole is formed in the membrane pressing seat in a penetrating manner; the cotton thread bar is arranged in the inner hole; and the ion permeable membrane is arranged at the bottom of the membrane pressing seat and is in contact with the cotton bar. According to the cotton thread permeation reference electrode membrane module provided by the utility model, the cotton thread is arranged in the inner hole of the membrane pressing seat, so that the defect that bubbles are generated in the inner hole of the membrane pressing seat in the storage and use processes of the electrode is overcome, and meanwhile, the pressure of filled liquid does not directly act on the ion permeation membrane any more, so that the service life of the membrane module is prolonged.

The present application belongs to the technical field of separation membrane material technology, and relates to an organic-inorganic composite membrane for selectively transferring lithium ions, which is formed by hybridizing an organic polymer and an inorganic solid lithium ion superconductor; and a preparation method thereof is as follows: an organic polymer is dissolved in an organic solvent to prepare an organic polymer solution; inorganic solid lithium ion superconductor powder is added into the organic polymer solution and stirred to obtain a uniform casting solution; and the obtained casting solution is prepared into a membrane. The present application utilizes the difference in cation permeation rate between the organic polymer and the lithium ion superconductor, and applies it to selective separation of lithium and magnesium; and the size screening effect of the inorganic solid lithium ion superconductor is utilized to improve the lithium and magnesium selective separation performance of the organic polymer, so that the doped membrane has high lithium ion transmission flux and selectivity.

The invention belongs to the technical field of glass fiber composite materials, and particularly relates to a modified glass fiber asphalt composite protective pad for a submarine pipeline and a preparation method. The protective pad comprises an asphalt base layer, a CNTs modified glass fiber reinforcement layer and a nano-montmorillonite modified asphalt outer surface layer, the thickness of the asphalt base layer is 20-30 mm; the thickness of the CNTs modified glass fiber reinforcement layer is 10 to 15 mm; the spraying thickness of the nano-montmorillonite modified asphalt is 2-9 mm, the CNTs modified glass fiber reinforcement layer constructs a nanoscale reinforcement phase on the fiber surface, and the MMT modified asphalt outer surface layer remarkably inhibits seawater chloride ion permeation and delays asphalt aging through layered structure physical barrier and ion exchange effects. The protective pad prepared by the invention meets the requirements of flexibility and rigidity, not only can adapt to irregular surface laying of the submarine pipeline, but also can directionally enhance the tensile strength through a fiber laying design (unidirectional / orthogonal), and is simple in preparation method and suitable for industrial production.

The invention relates to the technical field of microcrystalline glass, and discloses a microcrystalline glass component and application thereof. The glass ceramic component comprises glass ceramic, a first ion permeation layer and a second ion permeation layer which are sequentially stacked, the ion radius of the metal ions in the second ion permeable layer is larger than that of the metal ions in the first ion permeable layer; the content of the ceramic phase in the second ion permeation layer is in gradient change from inside to outside along the thickness direction; and the content of the ceramic phase in the upper surface of the second ion permeable layer is greater than or equal to 50wt%. The mechanical strength of the microcrystalline glass component is far higher than that of microcrystalline glass in the market, and when the microcrystalline glass component is applied to 3C products, the anti-falling performance of the 3C products can be improved, and the service life of the 3C products is prolonged.

An ion permeable membrane for selective permeation of a target ion, preferably lithium, through the membrane, the membrane comprising a target ion permeable composite comprises a target ion permeable ceramic and at least one organic polymer associated with the target ion permeable ceramic.