19 results about "Silver zeolite" patented technology

The invention relates to the technical field of fabric fabrics, in particular to preparation of a stain-resistant and waterproof polyester composite fabric. The invention discloses a stain-resistant waterproof polyester composite fabric and a preparation method thereof, the composite fabric is composed of three layers from outside to inside, the first layer is a polyester filament yarn surface layer subjected to fluorinated graphene and plant source C18 alkylsilane amphiphobic finishing; the second layer is a copolyamide hot melt adhesive net film with a melting point of 105 DEG C; and the third layer is a degradable multifunctional thermoplastic polyurethane elastomer film loaded with silver zeolite antibacterial microcapsules and conductive carbon nanotubes. An amphiphobic finishing liquid is uniformly deposited on the surface of polyester by adopting a supercritical CO2 one-step method, and nanoparticles and fibers are covalently bonded through a chitosan-citric acid cross-linked network, so that the waterproof grade is still greater than or equal to 90 after 30 times of water washing, the oil repellent grade is greater than or equal to 5, and the water contact angle and the oil contact angle are reduced by lt; the temperature is 5.5 DEG C, and the moisture permeability retention rate is gt; the antibacterial rate is 97%, and the antibacterial rate is gt; the compost degradation rate within 180 days is gt; 90%.

The invention relates to the technical field of high polymer materials, in particular to a degradable PHA tableware material and a preparation method thereof. The degradable PHA tableware material overcomes the problem that the degradable PHA tableware material is poor in mechanical property and antibacterial property. The preparation method comprises the following steps: drying polyhydroxyalkanoate, poly (butylene succinate), acetylated lignin, nano-zinc oxide, chitosan oligosaccharide and hexagonal boron nitride, carrying out melt extrusion on the dried materials, maleic anhydride grafted PHA, acetyl tributyl citrate and cinnamyl aldehyde in a double-screw extruder, carrying out injection molding, and carrying out plasma treatment activation. Polyurethane antibacterial slurry containing silver-loaded zeolite is sprayed, the tableware material with the body-surface synergistic enhancement function is finally obtained, and the impact strength, rigidity and antibacterial rate of the material are improved.

This invention relates to the field of antibacterial composite sphere preparation, and particularly to a graphene antibacterial composite sphere and its preparation method, comprising: high-speed dispersion of modified silver-loaded zeolite, graphene oxide, polyvinylpyrrolidone-block-polyacrylic acid, hydroxypropyl methylcellulose, and ascorbic acid; calculating dispersion state indices based on real-time monitored resistivity and particle size; dynamically adjusting the rotation speed to suppress shear damage; normalizing the dispersion state indices to parameter adjustment parameters of 1-10 to determine the screw speed and temperature setpoint of the twin-screw extruder; and real-time monitoring of 1710 cm⁻¹ during the extrusion process. ‑1 The drift of characteristic absorption peaks is dynamically compensated for by interfacial thermal degradation, and finally injection molding is performed. This invention achieves fine and stable dispersion and composite of graphene and silver-loaded zeolite in a polyethylene matrix through multi-level intelligent control, solving the problems of easy agglomeration of functional phases, easy degradation during processing, and poor batch consistency caused by rough process control in the prior art.

The invention relates to the technical field of acrylic plates, in particular to an antibacterial acrylic plate and a preparation method thereof.The antibacterial acrylic plate is prepared from, by weight, 100 parts of acrylic resin, 1-5 parts of antibacterial agent, 2-8 parts of plasticizer, 0.5-2 parts of antioxidant and 0.5-2 parts of ultraviolet light absorber; the antibacterial agent is one or a combination of more of a nano silver ion antibacterial agent, a silver-loaded zeolite antibacterial agent and a quaternary ammonium salt antibacterial agent. By accurately controlling the raw material ratio and selecting antibacterial agents with specific types and parameters, such as the particle size of a nano-silver ion antibacterial agent, the silver ion loading capacity of a silver-loaded zeolite antibacterial agent, the alkyl chain length of a quaternary ammonium salt antibacterial agent and the like, in cooperation with the microcosmic concave-convex structure design of the surface of the plate and the uniform distribution and slow release mechanism of antibacterial agent microcapsules, the antibacterial property of the plate is improved; the antibacterial rate of the antibacterial acrylic plate to common bacteria such as escherichia coli, staphylococcus aureus and the like is up to 99% or above.

An absorbent article 100 includes an absorber 10, the absorber 10 contains water-absorbent resin particle 10a composed of a deodorant composition, and the deodorant composition contains silver zeolite, an organic antimicrobial, and a water-absorbent resin.

The purpose of the present invention is to provide a silver-supported zeolite having excellent hydrocarbon (HC) adsorption characteristics, an exhaust gas purification catalyst, an exhaust gas purification device, an exhaust gas purification method, and a method for producing a silver-supported zeolite. In the silver-loaded zeolite, the silver is present in the form of at least one of a silver ion, a silver elementary substance, and a silver compound, the content ratio of the silver ion contained in the silver is 0.910 or more, and the content of the silver is 15.0 mass% or less with respect to the total weight of the silver-loaded zeolite.

The invention relates to the technical field of wool scarves, and discloses an antibacterial cashmere scarf and a preparation method thereof.The preparation method includes the following steps of pretreatment of high-quality cashmere, blending of antibacterial fibers, spinning, weaving, antibacterial after-treatment and finished product detection.The surface of the scarf is provided with antibacterial-treated real silk embroidery decorative threads; silver zeolite antibacterial agents are loaded on the real silk threads through an impregnation method, the edge of the scarf is of a special edge covering structure and comprises a built-in antibacterial fiber woven belt and a medical grade antibacterial silica gel edge sealing strip, and the silica gel edge sealing strip contains 3%-5% of triclosan antibacterial agents. Through a dual protection mechanism of fiber embedded antibacterial and surface antibacterial finishing, the problem that a single antibacterial mode is easy to lose efficacy is solved, a synergistic antibacterial effect is generated through compounding of nano-silver and chitosan, and then an antibacterial agent and fibers are firmly combined through a special after-finishing process, so that the antibacterial effect is good. Therefore, the long-acting antibacterial and washing-resistant effects are achieved through multiple antibacterial synergistic effects.

The invention discloses a silver zeolite molecular sieve adsorbent as well as a preparation method and application thereof, and relates to the technical field of low-temperature gas adsorption and hydrogen embrittlement protection, the adsorbent comprises a mesoporous-microporous composite zeolite substrate, a silver-copper bimetallic active component, a silicon dioxide coating layer and a honeycomb ceramic carrier, the contradiction between the low-temperature mass transfer efficiency and the adsorption capacity of a traditional adsorbent is solved through a mesoporous-microporous synergistic structure, the dispersity of active components is improved by adopting a bimetal ion exchange and continuous flow process, the cycling stability is enhanced by combining a silicon dioxide coating layer, and engineering efficient mass transfer is finally realized through modular carrier integration. According to the scheme, the technical problems that an existing single-aperture zeolite adsorbent is low in dynamic adsorption efficiency, metal components are prone to agglomeration and loss, and airflow distribution in large equipment is uneven are effectively solved, the capacity fading rate of the adsorbent can be reduced after the adsorbent is cyclically used for multiple times in an LNG torpedo tank alternating temperature field, and the adsorbent is suitable for hydrogen selective removal in the low-temperature and high-pressure environment.

The application provides a containment pressure-suppression filtration discharge system for a floating nuclear power platform, comprising a containment, a first discharge valve, a first discharge pipeline, a first nozzle, a first-stage pressure-suppression water tank, a second-stage pressure-suppression water tank, an expansion tank, a second discharge valve, a filtration cabin, a second nozzle, an air cooler, a radiation monitor, a passive residual heat removal water tank, a first stop valve and a second stop valve. The application can realize efficient removal of airborne radioactive substances (aerosol, inorganic iodine and organic iodine) by setting multiple radioactive removal means in series, including two-stage bubbling water washing, static mixer cutting bubbles, high-efficiency metal fiber filtration, silver zeolite filtration and the like, and reduce the radioactive influence of containment overpressure discharge on the environment under severe accident conditions. The air cooler arranged on the filtration discharge pipeline condenses the discharge steam, and the condensate returns to the filtration cabin by means of gravity difference, so that the long-term passive effective operation of the water washer can be realized.

The invention discloses a medicine bottle and a production process method thereof, and belongs to the field of medicine packaging containers. The medicine bottle comprises a bottle body and a bottle cap, and the bottle body is of a double-layer structure and comprises an inner sterilization layer and an outer protection layer. The inner sterilization layer is prepared from polypropylene, a slow-release antibacterial composition and an inner layer functional aid, wherein the slow-release antibacterial composition contains an inorganic slow-release antibacterial agent and an organic contact antibacterial agent; and the outer protective layer is prepared from polyethylene glycol terephthalate and a functional additive. The inorganic slow-release antibacterial agent is silver-loaded zirconium phosphate or silver-loaded zeolite; the organic contact type antibacterial agent is a high-temperature-resistant double-chain quaternary ammonium salt or guanidine antibacterial agent. The production process comprises the steps of premix preparation, antibacterial functional master batch preparation, inner and outer layer material preparation, double-layer bottle body co-extrusion blow molding, post-treatment and the like. Through the design of the double-layer antibacterial structure, the sterilization problem of the medicine packaging container is effectively solved, and the safety of medicine storage is improved.

The utility model provides an antibacterial composite resin tooth, and relates to the technical field of composite resin teeth, the antibacterial composite resin tooth comprises a composite resin tooth main body, the inner side of the composite resin tooth main body is provided with a dental crown main body, and the composite resin tooth main body is composed of the dental crown main body and a tooth root main body; the composite resin tooth main body can be scanned according to a natural tooth shape of a person needing tooth filling, the dental crown main body and the tooth root main body are printed through a 3D printing technology, the dental crown main body and the tooth root main body are mainly made of organic silicon resin, the organic silicon resin endows the surface of the dental crown with excellent wear resistance, friction in the chewing process can be resisted, and the tooth filling effect is good. The appearance and shape of the dental crown main body and the tooth root main body are kept, the silver-loaded zeolite is further arranged on the inner sides of the dental crown main body and the tooth root main body, the silver-loaded zeolite can slowly release silver ions, the antibacterial effect is further enhanced, tissue around the tooth root is prevented from being infected, and therefore the composite resin tooth main body has a certain antibacterial effect.

The application relates to the technical field of medical adhesive material preparation, and discloses a high-elasticity antibacterial medical adhesive tape and a preparation method thereof. The preparation method comprises the following steps: taking polydimethylsiloxane raw rubber as a base material, mixing modified white carbon black reinforcing filler, pre-dispersed silver-loaded zeolite antibacterial agent and platinum gold catalyst at low temperature, and preparing a base rubber material after closed mixing under nitrogen protection, obtaining an elastic base tape through extrusion molding, laser thickness measurement dynamic regulation and control and secondary vulcanization; a type paper coating and micro-gravure transfer coating process is matched and optimized, three-section curing and constant tension composite winding are adopted, and the high-elasticity antibacterial medical adhesive tape is prepared. Through filler modification, antibacterial agent pre-coating and whole-process precise process control, the base material elasticity and antibacterial durability are improved, the product performance is uniform and stable, the biocompatibility is good, and the product is suitable for clinical medical dressing and fixing requirements.

According to the lipid hydrocolloid silver-loaded zeolite antibacterial dressing, the preparation method and application thereof and the preparation, zeolite confinement and ion exchange are achieved, stable release is achieved, the characteristics of rapid release in the initial stage, gradual retarding in the middle stage and tending to be stable in the later stage are shown, and sufficient silver ion concentration can be provided in the initial stage of a wound so as to play an antibacterial role; meanwhile, a certain silver ion concentration is maintained in a subsequent time period, so that the antibacterial effect is continuously exerted, the potential toxicity to tissues is reduced, and the early peak value and potential stimulation are reduced; in the formula, non-specific migration of silver to the wound edge is reduced by oleophylic / hydrophilic phases in a synergistic manner, and the silver-loaded wound dressing has broad-spectrum efficient antibacterial performance, has greater than or equal to 90% of antibacterial potential for gram positive / negative model bacteria, and is adaptive to a multi-colony loaded wound surface.

The invention discloses a pervious concrete road construction method. The pervious concrete road construction method comprises the following steps that S1, a graded broken stone transition layer is laid on roadbed soil, and a blind ditch system is installed on the roadbed soil; s2, mixing the coarse aggregate with the fine aggregate to obtain mixed aggregate with the porosity of 18-22%, and then adding a cementing material doped with nano-silica, polypropylene fibers and silver-loaded zeolite powder into the mixed aggregate to obtain a concrete material; s3, a concrete material is laid on the graded broken stone transition layer in a bin-dividing and lattice-jumping pouring mode to form a pervious concrete layer, and low-frequency vibration is conducted in the laying process; and S4, after the concrete is finally set, a hydrophobic agent is sprayed to the surface of the concrete. By adopting the construction method, the compressive strength and the water permeability of the concrete pavement can be improved, meanwhile, the concrete pavement has good anti-fatigue performance, the durability of the pavement is improved, in addition, damage to the pavement caused by invasion of algae and moss root systems into pores can be avoided, and the acid resistance of concrete is enhanced.

The present invention provides a roll toilet paper which has excellent deodorizing effect against urine odor and feces odor. The above problem is solved by a roll toilet paper which is formed by winding a strip-shaped toilet paper on a paper tube, wherein the roll toilet paper contains a catechin-based deodorizing agent, a tannin-based deodorizing agent, and a silver-loaded zeolite.

The invention relates to the technical field of silica gel, and discloses an antibacterial mildew-proof flexible slow-rebound silica gel material and a preparation process thereof, the silica gel material comprises the following raw materials: vinyl silicone oil, hydrogen-containing silicone oil, a modified silver-loaded zeolite antibacterial agent and the like; and adding the silver-loaded zeolite antibacterial agent and the dispersing agent into water, and stirring for modification to obtain the modified silver-loaded zeolite antibacterial agent. The modified silver-loaded zeolite antibacterial agent has good dispersibility in a silicone rubber matrix, and the binding force between the zeolite antibacterial agent and the silicone rubber is enhanced through chemical bonding, so that the silicone rubber material keeps very high tensile strength and elongation at break and has excellent mechanical properties. The dispersing agent contains an antibacterial long-carbon-chain quaternary ammonium salt structure, can destroy the permeability of cell membranes of bacteria and molds and inhibit complex growth of the bacteria and molds, and has synergistic antibacterial and mildew-proof effects with the silver-loaded zeolite antibacterial agent, so that the antibacterial and mildew-proof properties of the silica gel material are improved.

The invention relates to the related field of high polymer material processing, in particular to a preparation method of a nano-composite durable antibacterial foaming TPE yoga mat and a product, and the preparation method comprises the following steps: preparing core-shell antibacterial master batches; dynamically foaming; gradient warm-pressing forming is conducted; and carrying out surface functionalization. The silver-loaded zeolite nano antibacterial master batch is introduced into a TPE matrix, and dynamic foaming and surface functionalization processes are combined, so that a double antibacterial mechanism of silver ion slow release and quaternary ammonium salt grafting is realized, and the yoga mat is endowed with lasting and efficient antibacterial performance; meanwhile, the master batch structure avoids uneven foaming and mechanical property reduction, so that the product keeps excellent elasticity, rebound resilience and compression resistance; furthermore, the heat resistance and the surface bonding firmness of the antibacterial agent are obviously improved, the antibacterial layer is not easy to wear and fall off, and the stability of long-term use is ensured; in addition, the antibacterial agent is low in seepage rate, and the product is safe and environment-friendly, has the characteristics of skid resistance, comfort and durability, and has a wide market application prospect.

A silver-loaded zeolite filter, and a nuclear power plant containment filtering and discharging system comprising the silver-loaded zeolite filter. The silver-loaded zeolite filter comprises a pressur

The utility model discloses a water seepage type runway which comprises a runway main body and a hydrophobic structure layer arranged on the runway main body, the hydrophobic structure layer sequentially comprises a root system protection layer, a water seepage layer, a water seepage layer and a water seepage layer from bottom to top, the root system protection layer is composed of a grass planting concrete base, and slow-release anti-root agents are pre-buried in pores of the root system protection layer; the ground temperature adjusting layer is composed of phase-change material composite ceramsite; the microorganism protection layer is a silver-loaded zeolite particle filtering layer; the dynamic buffer layer is an elastomer layer with negative Poisson's ratio characteristics; the fractal water guide layer is a three-dimensional pipe network layer of an imitated tree-shaped bifurcated structure; the super-hydrophobic wear-resistant layer is a modified polymer surface layer of which the surface contact angle is greater than 150 degrees; wherein the branch angle of the fractal water guide layer is 55-65 degrees, the elastic modulus of the dynamic buffer layer is dynamically matched with the drainage rate of the fractal water guide layer, a collaborative drainage structure is formed, the fractal water guide layer and the dynamic buffer layer act synergistically, and the drainage efficiency is improved compared with that of a traditional runway.