194 results about "Fiber matrix" patented technology

The invention discloses a fiber bragg grating deflection sensing system and a manufacturing method thereof, the fiber bragg grating deflection sensing system comprises a multi-layer carbon fiber belt reinforced matrix, the carbon fiber belt reinforced matrix is formed by superposing at least two layers of unidirectional carbon fiber prepreg belts or dry carbon fiber fabrics, and the at least two layers of carbon fiber belts are used for clamping a fiber bragg grating therebetween; a low-rigidity sensing window area is arranged on the carbon fiber belt reinforced matrix; the fiber bragg grating sensing unit comprises at least a plurality of fiber bragg gratings which are accurately and axially arranged between the at least two layers of carbon fiber prepreg tapes; the low-rigidity sensing window areas correspond to the fiber bragg gratings in number and position; the coating further comprises strong interface bonding glue; fiber leads at two ends of the fiber grating are led out from the end part of the sensing system; according to the system, the high rigidity of the cross-laid carbon fiber matrix in the measurement direction is matched with the strain concentration effect of the low-rigidity window area and the efficient strain transmission of the low-modulus glue to the FBG, so that high sensitivity and excellent linearity are realized through the combined action of the high rigidity, the strain concentration effect and the efficient strain transmission of the low-modulus glue to the FBG.

The invention discloses an anti-ultraviolet high-flame-retardant polyester fiber and a preparation method thereof. The polyester fiber is prepared from the following raw materials in parts by weight: 100 parts of polyester chips, 20-60 parts of core-shell flame-retardant anti-ultraviolet particles and 2-4.5 parts of an anti-dripping agent. According to the invention, a porous alumina-titanium dioxide compound is used as a carrier, a magnesium hydroxide flame retardant, iron-doped carbon dots with photo-thermal performance and auxiliaries (an antioxidant and an ultraviolet light absorber) are combined with the carrier to construct a structural system loaded with multiple active components: functionalized flame-retardant particles, and then a polyurethane microporous membrane is coated, so that the flame-retardant polyurethane composite material is obtained. The core-shell type flame-retardant anti-ultraviolet particles are added into polyester fibers, so that the anti-ultraviolet performance and the flame-retardant performance of the polyester fibers can be remarkably improved. The polyester fiber provided by the invention can adaptively increase the release rate of the ultraviolet absorbent and the antioxidant when the ultraviolet property is enhanced in the environment, so that more optimized protection can be provided for a polyester fiber matrix at the moment.

The invention relates to the technical field of sand mold casting, and particularly discloses a gradient exhaust sand mold for an aluminum alloy thin-walled workpiece and a preparation method thereof.The sand mold comprises a cavity surface layer (with the hardness ranging from 90 HB to 95 HB), a transition layer (with the hardness ranging from 80 HB to 70 HB and a back sand layer (with the hardness ranging from 60 HB to 65 HB) which are arranged from inside to outside, and microporous ceramic exhaust rods (with the diameter ranging from 0.3 mm to 0.8 mm and the distance ranging from 1 mm to 3 mm) are embedded in the cavity surface layer; the exhaust rod is composed of a mullite fiber matrix and a nanometer gamma-AlO coating, the porosity is 40-50%, and the exhaust rod penetrates through the back sand layer to form a directional exhaust network. The preparation method comprises the following steps: mixing sand layer by layer (the cavity layer contains 1.0-1.5% of phenolic resin, and the back sand layer contains 0.4-0.6% of resin and 4-6% of starch); when sand is filled to the position 1-3 mm away from the surface of the cavity, an exhaust rod is implanted (the positioning precision is + / -0.1 mm); gradient compaction is carried out (the high pressure of a cavity is 3.0-4.0 MPa, the vibration of a transition area is 20-30 Hz, and the back sand airflow is 0.1-0.2 MPa); and carrying out microwave curing (2.5 to 3.5 kW, 60 to 120 s). The defects of hot cracks and air holes of the thin-wall part (smaller than or equal to 5 mm) are overcome synchronously, and the casting yield is increased to 95% or above.

The invention relates to the technical field of thermal insulation materials, in particular to a high-temperature-resistant aerogel composite material and a preparation method thereof. The high-temperature-resistant aerogel composite material is prepared from the following components in parts by weight: 15 to 35 parts of reinforced fiber matrix, 43 to 65 parts of silicon-aluminum-zirconium ternary aerogel network, 3 to 12 parts of functional nano filler, 2 to 8 parts of zinc borate flame-retardant component and 0.5 to 2 parts of surface hydrophobic modified layer. Wherein the reinforced fiber matrix is composed of aluminum silicate fibers, silicon carbide fibers and aluminum oxide nanofibers; the molar ratio of silicon to aluminum to zirconium in the silicon-aluminum-zirconium ternary aerogel network is 5: 2: 1; the functional nanofiller comprises aluminum oxide nanoparticles, titanium oxide nanoparticles, carbon nanotubes and boron nitride nanosheets; the zinc borate flame-retardant component is zinc borate; the surface hydrophobic modification layer comprises an inner methyltrimethoxysilane modification layer and an outer hexamethyldisilazane modification layer. The high temperature resistance and thermal shock resistance of the material are remarkably improved, a low-energy-consumption preparation process is adopted, and the material has excellent comprehensive performance.

Disclosed is a media for capturing carbon dioxide from a gas stream of ambient air or industrial exhaust. The media includes a fiber matrix having fine fiber strands formed from at least one first polymer capable of capturing carbon dioxide through absorbance or adsorbance. The fine fiber strands have a first mean diameter of 5000 nm or less. Further, the media includes a plurality of nodules dispersed in the fiber matrix, and the plurality of nodules are made from a nodule material capable of capturing carbon dioxide through absorbance or adsorbance. The media can be configured for use in a carbon capture element of a carbon capture cell disposed within a carbon capture system, such as a direct air or point source carbon capture system.

The present application relates to a kind of elastic wall phase change microcapsule-containing fiber and its preparation method and application, it relates to composite fiber field.Elastic wall phase change microcapsule-containing fiber includes fiber matrix, elastic wall phase change microcapsule, elastic wall microcapsule includes wall material, core material, wall material includes polyamide 66 / polyethylene glycol copolymer, the raw material of core material includes polyimide aerogel, polyethylene glycol phase change material.Elastic wall phase change microcapsule is contained in the fiber, can overcome the microcapsule used in the prior art phase change polyamide fiber difficult to deform, particle size size requirement is strict, in turn lead to core material is easily leaked, and the compatibility of the raw material of fiber matrix is poor.

The invention relates to the technical field of fibers, and particularly discloses a skin-friendly fiber, a preparation method of the skin-friendly fiber and a hygienic product with the skin-friendly fiber. The skin-friendly fiber comprises a fiber matrix and a coating layer coating the fiber matrix, and the fiber matrix comprises a core layer and a skin layer coating the core layer; the core layer is prepared from the following raw materials: PET resin, whitening master batch, a flexibilizer, a compatilizer and an antioxidant; the skin layer comprises the following raw materials: PE resin, an initiator, glycidyl methacrylate and tertiary amine; the coating layer comprises the following raw materials: red camellia oil microcapsules and polylysine; the capsule core of the red camellia oil microcapsule is red camellia oil, and the capsule wall of the red camellia oil microcapsule is prepared from the following raw materials: chitosan, hyaluronic acid and a glutaraldehyde solution in a mass ratio of 1: (2-3): (1.5-2). The skin-friendly fiber can be used for manufacturing non-woven fabrics of hygienic products, and has the advantages of being skin-friendly, soft, breathable and high in moisture penetrability.

The invention discloses an anti-ultraviolet high-flame-retardant polyester fiber and a preparation method thereof. The polyester fiber is prepared from the following raw materials in parts by weight: 100 parts of polyester chips, 20-60 parts of core-shell flame-retardant anti-ultraviolet particles and 2-4.5 parts of an anti-dripping agent. According to the invention, a porous alumina-titanium dioxide compound is used as a carrier, a magnesium hydroxide flame retardant, iron-doped carbon dots with photo-thermal performance and auxiliaries (an antioxidant and an ultraviolet light absorber) are combined with the carrier to construct a structural system loaded with multiple active components: functionalized flame-retardant particles, and then a polyurethane microporous membrane is coated, so that the flame-retardant polyurethane composite material is obtained. The core-shell type flame-retardant anti-ultraviolet particles are added into polyester fibers, so that the anti-ultraviolet performance and the flame-retardant performance of the polyester fibers can be remarkably improved. The polyester fiber provided by the invention can adaptively increase the release rate of the ultraviolet absorbent and the antioxidant when the ultraviolet property is enhanced in the environment, so that more optimized protection can be provided for a polyester fiber matrix at the moment.

The invention relates to the technical field of polylactic acid fibers, and discloses a preparation process of an anti-static polylactic acid superfine fiber fabric, star-shaped polylactic acid grafted carbon nanotubes are prepared from tetra (hydroxymethyl) phosphorus chloride, 2-amino-4, 6-dimethoxy-1, 3, 5-triazine and the like as raw materials, and the star-shaped polylactic acid grafted carbon nanotubes and polylactic acid slices are subjected to melt spinning to obtain the polylactic acid superfine fiber fabric; the star-shaped polylactic acid grafted carbon nanotubes have a structure similar to that of a polylactic acid matrix, so that the carbon nanotubes are uniformly dispersed in a polymer matrix and form relatively strong interface bonding, migration and precipitation are avoided, and the star-shaped polylactic acid grafted carbon nanotubes have anti-static durability; the structure of the superfine fiber fabric contains nitrogen and phosphorus synergistic flame-retardant elements, so that the exchange between a fiber matrix and oxygen and heat in the air can be blocked, and the flame-retardant property of the superfine fiber fabric is improved; the density of the fiber fabric can be increased by the formed cross-linked network structure, so that the mechanical property of the superfine fiber fabric is remarkably improved.

The ultrahigh anti-cutting fiber comprises an ultrahigh molecular weight polyethylene fiber matrix and a reinforcing filler dispersed in the matrix, the molecular weight of the ultrahigh molecular weight polyethylene fiber is 1 million to 10 million, the length of the reinforcing filler is 0.1-100 microns, the diameter of the reinforcing filler is 0.1-25 microns, and the diameter of the reinforcing filler is 0.1-10 microns. The mass ratio X of the reinforcing filler to the ultra-high molecular weight polyethylene fiber is (0.002-0.60): 1, according to ASTM F2992 standard test, the cutting force of the anti-cutting fiber is 1500-7500 gf, and the ultra-high anti-cutting fiber has extremely excellent anti-cutting performance, can reach A9 grade at most, has high-strength protection performance and good wearing comfort, and can be used for manufacturing the ultra-high molecular weight polyethylene fiber. And the protection time efficiency of the anti-cutting gloves and other anti-cutting products is greatly prolonged.

The tensile strength of the high-toughness plant fiber non-woven fabric is larger than or equal to 20 MPa, the elongation at break of the high-toughness plant fiber non-woven fabric is larger than or equal to 25%, and the 24-hour water absorption rate of the high-toughness plant fiber non-woven fabric is smaller than or equal to 40%; the plant fiber non-woven fabric is prepared by dipping a plant fiber non-woven fabric in a mixed aqueous solution containing polyvinyl alcohol, cellulose nanofibers and citric acid and carrying out heat treatment. According to the preparation method, a plurality of carboxyl groups on citric acid molecules and hydroxyl groups on polyvinyl alcohol chains, on the surfaces of cellulose nanofibers and on plant fiber matrixes are subjected to esterification reaction to form a compact ternary synergistic cross-linked network, so that the mechanical property and the water resistance of the plant fiber non-woven fabric are effectively improved.

The invention relates to the technical field of papermaking, and provides a composite fiber material and a preparation method thereof.The composite fiber material comprises a reinforcing layer and a functional layer which are arranged in a stacked mode; the reinforcing layer comprises matrix-fibril type composite fibers, and the matrix-fibril type composite fibers comprise synthetic fibrils and matrix fibers covering at least part of the surfaces of the synthetic fibrils; the functional layer comprises a skin-core type composite fiber, and the skin-core type composite fiber comprises a core layer and a functional skin layer wrapping at least part of the surface of the core layer. According to the invention, the interface bonding and load transmission efficiency of synthetic fibrils and a cellulose network is improved on the enhancement layer, and a high-strength bearing skeleton is constructed; the functional layer limits functional components on the surfaces of the fibers to form a stable functional skin layer, so that the functional components are prevented from forming a weak boundary layer among the fibers and weakening fiber bonding; the two layers cooperate to realize that the paper-based material keeps high strength and reduces the interlayer stripping risk while obtaining the target surface function.

The invention discloses a preparation method of an ultrathin self-supporting composite solid-state electrolyte membrane and a solid-state battery, and relates to the technical field of solid-state electrolyte. The binary composite cross membrane with the ion-conducting characteristic and the high-strength heat-resistant characteristic is prepared through synchronous electrostatic spinning, and the binary composite cross membrane is composed of ion-conducting polymer fibers and a high-strength heat-resistant fiber matrix; and then repeatedly carrying out vacuum impregnation-drying on the sulfide electrolyte slurry in the composite membrane, and finally rolling to obtain the ultrathin high-ion-conductivity high-temperature-resistant self-supporting electrolyte membrane. The mechanical strength and the thermal stability of the electrolyte membrane can be considered, meanwhile, an effective transmission path of ions in the middle layer is increased, and the tortuosity of the ion transmission process is reduced, so that the ion transmission characteristic of the electrolyte membrane is improved.

Particles of non-woven graft materials for use in specialized surgical procedures such as soft tissue repair and wound management procedures, methods for making the powder, and methods for repairing tissue such as neurological tissue using the powder are disclosed. The particles can advantageously be used to fill irregular shaped areas or can be used in conjunction with non-woven graft materials.

The application discloses a high-heat-conducting electrolytic capacitor paper, which is prepared from the following components in parts by weight: paper base fiber: 40-100 parts; modified ceramic filler powder: 5-25 parts; adhesive: 1-10 parts; and auxiliary agent: 2-15 parts. The application also provides a preparation method of the high-heat-conducting electrolytic capacitor paper. The high-heat-conducting electrolytic capacitor paper has good adsorption and good insulation, and still has very low ESR in the high-frequency working process. The ceramic filler powder and the adhesive are added into the paper base fiber matrix, the ceramic filler powder greatly enhances the heat-conducting performance of the capacitor paper, and the adhesive can effectively improve the strength of the paper, so that the strength requirement of the electrolytic capacitor paper in various processing can be met. Overall, the high-heat-conducting electrolytic capacitor paper has high heat conductivity and high paper strength, and has all the excellent performances of the paper base capacitor paper.

The invention relates to the technical field of electronic cigarette heating elements, in particular to a flexible ceramic-based electronic cigarette heating wire and a preparation method thereof.The flexible ceramic-based electronic cigarette heating wire comprises a zirconia ceramic fiber matrix, the zirconia ceramic fiber matrix is composed of tetragonal phase zirconia co-stabilized by 3-5 mol% of yttrium oxide and 1-2 mol% of cerium oxide, the diameter of zirconia ceramic fibers is 200-400 nm, and the grain size is 80-120 nm; the surface of the zirconia ceramic fiber matrix is covered with the metal film layer, and the metal film layer comprises a zirconium transition layer with the thickness of 2-3 nm; the iron-chromium-aluminum alloy layer comprises the following components in percentage by weight: 68 to 71 percent of iron, 22 to 24 percent of chromium, 5.5 to 6.2 percent of aluminum, 0.2 to 0.28 percent of yttrium and the balance of inevitable impurities; and the thickness of the iron-chromium-aluminum alloy layer is 300-400 nm, and the resistivity of the iron-chromium-aluminum alloy layer is 1.3-1.4 mu omega.m.

The utility model discloses a kind of plant fiber polishing grinding wheel, including polishing grinding wheel, abrasive composite layer and fiber framework layer;The surface central position of polishing grinding wheel is provided with through-hole;Abrasive composite layer is arranged in the inside of polishing grinding wheel, and the bottom of abrasive composite layer is provided with base layer;The utility model is by stress dissipation layer using alternate layer design of bottom layer, transition layer and working layer, different fiber direction or material lamination, impact load and centrifugal stress in the process of polishing and grinding can be effectively dispersed, reduce structural cracking risk;By abrasive composite layer using bottom layer, transition layer, working layer, three layers of wear-resistant structure design, by material performance complement, bottom layer high cohesive strength, transition layer stress buffer, make the wear life of polishing and grinding wheel than traditional single-layer structure has somewhat improved;By the plant fiber matrix of working layer endows abrasive composite layer with "flexible grinding" characteristics, can be attached to stainless steel pipe material, sheet complex curved surface, improve processing precision stability.

The invention discloses a tough water-based structure resin composition and a tough water-based structure resin kit for constructing a paper base and a paper pulp molding product of a fiber matrix and a preparation and application method of the tough water-based structure resin composition and the tough water-based structure resin kit, and belongs to the technical field of papermaking wet end chemistry and paper pulp molding materials. In conformity with the industry trend that paper replaces plastic and food contact materials for fluoride-free control, the invention constructs an acrylic polycarboxylic acid polymer and inorganic-organic dual-element charge buffer synergistic system aiming at the pain point of failure of traditional chemicals in a high-recycling pulp proportion and closed water circulation high-conductivity system. According to the scheme, through a unique cross-linking mechanism, multiplication effects of physical strength such as breakage resistance and ring crush resistance and water-resistant and oil-resistant barrier properties can be achieved under the condition of extremely low dosage, and the method is superior to a conventional enhancement technology in the market. The composition is an all-water-based system and does not contain perfluorinated compounds, so that excellent wet stiffness and film forming compactness are endowed to a product, meanwhile, complete repulping and recycling are ensured, and a green solution with the advantages of high efficiency, low cost and compliance is provided for papermaking and pulp molding industries.

The invention discloses an electromagnetic shielding fiber with impedance gradient and a preparation method and application thereof, and belongs to the field of electromagnetic shielding materials. According to the invention, an MXene / polyurethane (TPU) fiber composite layer is used as an inner layer, a carbon black (CB) / ANFs composite layer is used as an outer layer, and a core-shell structure fiber matrix is constructed; and coating the surface of the core-shell structure fiber matrix with a silicon carbide (SiC) impedance matching layer to obtain the electromagnetic shielding fiber with impedance gradient. The electromagnetic shielding fiber with the impedance gradient has an impedance gradient structure of which the electrical conductivity is gradually changed from outside to inside, and the shielding effectiveness in an X wave band (2-40GHz) is greater than or equal to-70dB; and the product has good flexibility and elasticity, and can be used for preparing protective clothing.

The invention relates to a high-strength antibacterial spandex fabric and a preparation method thereof, and belongs to the technical field of functional textile materials. The spandex fiber comprises a spandex fiber matrix and a functional polymer layer grafted on the surface of the matrix through a covalent bond, and the functional polymer layer is a polymer of an unsaturated derivative of natural phenolic acid and is prepared by introducing carbon-carbon unsaturated bond groups such as acryloyloxy and the like into the natural phenolic acid through esterification or etherification. During preparation, the spandex fiber is subjected to plasma pretreatment, and then the spandex fiber and the natural phenolic acid-containing unsaturated derivative monomer are subjected to thermal initiation or photo-initiation graft polymerization to form the functional layer. The lasting and stable antibacterial function is achieved through covalent bond grafting, the natural phenolic acid derivative endows the fiber with the environment-friendly and non-dissolution type antibacterial property, the functional layer can improve the modulus and breaking strength of the fiber, the intrinsic elasticity of spandex is considered, the comfortable fitting characteristic of the composite fabric is reserved, and the composite fabric is endowed with the high strength and the antibacterial function.

The application relates to the technical field of polyester fibers, and discloses a polyester fiber fabric preparation method, which takes N,N'-bis(2-hydroxyethyl)ethylenediamine, N,N'-di-Boc-S-methyl isothiourea and the like as raw materials, and is subjected to esterification polycondensation reaction with dimethyl terephthalate to obtain a waterproof antibacterial copolyester polymer with a similar structure to PET polyester; the waterproof antibacterial copolyester polymer contains quaternary ammonium salt, guanidine and a hydrophobic long-chain structure in the structure, can be uniformly distributed in a polyester fiber matrix, migration of antibacterial groups is avoided, and the antibacterial performance on bacteria is better; the C-F bond energy is high, fluorine atoms are more easily embedded into the polymer, the channel for water molecules to migrate to the inside of the coating is blocked, a stable protective layer can be formed on the surface of the fiber fabric, the fiber is wrapped, water permeation into the fiber is prevented, and thus the waterproof effect is achieved; meanwhile, the hydrophobic layer also has certain durability and can withstand multiple water washes without failure.

The application discloses a paper-based and pulp molded product strong water-based structure resin composition for constructing a fiber matrix, a kit and a preparation and application method thereof, and belongs to the technical field of papermaking wet end chemistry and pulp molding materials. In response to the global trend of replacing plastic with paper and fluorine-free control of food contact materials, the application aims at the pain point of failure of traditional chemicals in a high recycling pulp proportion and a closed water circulation high conductivity system, and constructs an acrylic polycarboxylic acid polymer and inorganic-organic dual charge buffer synergistic system. The scheme realizes the multiplication effect of physical strength such as breaking and ring pressure and the water resistance and oil resistance barrier performance by a unique crosslinking mechanism at a very low dosage, which is better than conventional enhancement technology on the market. The composition is a full water-based system and does not contain perfluorinated compounds, which ensures complete pulp recycling while giving the product excellent wet stiffness and film-forming density, and provides a green solution with high efficiency, low cost advantage and compliance for the papermaking and pulp molding industry.

The application discloses a preparation method of a chitosan hollow fiber conductive membrane, which comprises the following steps: reducing graphene oxide into phosphatized reduced graphene oxide by using phytic acid as a reducing agent; and making the phosphatized reduced graphene oxide as a crosslinking agent and an ion conductor, so as to be tightly combined with a chitosan hollow fiber membrane through intermolecular hydrogen bonds under the auxiliary action of residual phytic acid in the system, and thus the chitosan hollow fiber conductive membrane is prepared. The chitosan hollow fiber conductive membrane has the advantages of high conductivity and good stability, and can be used as a membrane sensor for human motion monitoring, so that the problems of poor dispersibility, poor interface compatibility and poor conductivity of graphene in a fiber matrix are solved.

Particles of non-woven graft materials for use in specialized surgical procedures such as soft tissue repair and wound management procedures, methods for making the powder, and methods for repairing tissue such as neurological tissue using the powder are disclosed. The particles can advantageously be used to fill irregular shaped areas or can be used in conjunction with non-woven graft materials.

The invention relates to the field of textiles, and particularly discloses a negative ion milk fiber fabric and a preparation process. The anion milk fiber fabric is formed by blending anion milk fibers and cotton fibers, wherein the blending ratio of the anion milk fibers to the cotton fibers is (7-7.5): (2.5-3); the anion milk fiber yarns are regenerated protein fibers loaded with nano-scale tourmaline, and the mass ratio of the nano-scale tourmaline in the fiber matrix is 5-15%; the preparation method comprises the following steps: uniformly dispersing the surface-modified nano tourmaline in a milk protein spinning solution, carrying out wet spinning to obtain the negative ion milk fibers, blending the negative ion milk fibers with the cotton fibers to form the fabric, and carrying out plasma treatment. The anion milk fiber fabric has the advantages that the inherent skin-friendly comfort of the milk fibers is kept, and meanwhile, the anion function is permanently and efficiently released.

A composite panel holder having a plurality of layers, wherein each layer is a fiber matrix tape including a plurality of fibers immobilized in a matrix of a thermoplastic or thermoset polymer, and each layer is oriented at a different angle but in a same plane relative to a layer it is in direct contact with; and wherein the composite panel holder comprises six portions oriented in different directions, as viewed along a longitudinal axis of the panel holder. A method of preparing the composite panel holder that includes impregnating a plurality of fibers in a thermoplastic or thermoset polymer to form a matrix of fibers in the polymer, forming the matrix into a plurality of unidirectional tapes, stacking the tapes to form a composite structural panel with each of the tapes oriented in a different direction from adjacent tapes; and pressing the structural panel with a thermoforming press.

A molded pulp product formed from the molding of a three-dimensional pulp slurry. The pulp slurry comprises a natural fiber composition of virgin fibers which have not been recycled and are derived from plant materials. The natural fiber composition includes hemp fibers which have been micronized to suitable length and combined with pulverized hemp shive to form a fibrous matrix. The molded pulp product is formed from a vacuum molding process, thermoforming process, custom air-burst molding process, or other molding process wherein the slurry is applied to a three-dimensional mold and a three-dimensional product is formed. The resulting packaging product is one hundred percent biodegradable.

Metal-based hydrogen storage fibers capable of selectively absorbing and desorbing / releasing hydrogen gas, and hydrogen storage vessels comprising the fibers, wherein the fibers are preferably arranged in a fabric. The fabric is a porous structure with a large surface area, which is well suited for hydrogen storage and transport. A hydrogen storage system is provided with attractive properties. Hydrogen storage in metal hydride fibers provides a compact and safe method of hydrogen storage, wherein hydrogen molecules in the gas phase can be adsorbed on the surface of the fibers, thereby forming metal hydrides, or dissociated into individual hydrogen atoms, which can further diffuse into the bulk of the metal hydride fiber and occupy sites in the metal hydride fiber matrix.

The application discloses a kind of affinity-zinc integration matrix material and aqueous zinc ion battery, it is related to aqueous zinc ion battery technical field.The affinity-zinc integration matrix material is prepared by the following steps: carbon source precursor and zincophilic metal salt precursor are dispersed in solvent, stirring is uniformly obtained precursor solution;The precursor solution is electrospun, and spinning film is obtained;Spinning film is calcined in air with first preset temperature, then high-temperature annealing is carried out to spinning film under argon hydrogen mixed atmosphere with second preset temperature, and the carbon fiber matrix loaded with zincophilic nanoparticles is obtained;The carbon fiber matrix loaded with zincophilic nanoparticles is carried out zinc plating pre-zincification and obtains the affinity-zinc integration matrix material;The affinity-zinc integration matrix material can make zinc ion directional, uniformly deposited on its surface as negative electrode matrix, effectively inhibit dendrite growth on negative electrode and side reaction occurs, so as to improve the cycle stability and energy density of aqueous zinc ion battery.

The application discloses a kind of composite nanofiber face masks and preparation method thereof, belong to skin care product technical field, composite nanofiber face mask includes fiber matrix and plant source active ingredient, plant source active ingredient includes one or more of rice bran extract, aloe extract and green tea polyphenol, fiber matrix includes polyvinyl alcohol and silk fibroin, the mass ratio of plant source active ingredient and fiber matrix is 10-18:100.The application uses the above-mentioned one kind of composite nanofiber face mask and preparation method thereof, and plant source active ingredient containing natural antibacterial component is physically embedded and dispersed in fiber interior or fiber network, relies on dry state storage and physical stabilization process, it is helpful to improve the dry state storage stability of product, and reduces the dependence on traditional preservative system.