31results about How to "Improve load fastness" patented technology

The invention relates to a preparation method of a honeycomb ceramic net through Lu and N co-doped TiO2 photocatalysis. The honeycomb ceramic net is regarded as a first carrier, and activity AL2O3 coating with specific surface area of 300 to 400m2/g and doping with lanthanum, cerium and iron element is loaded on the first carrier and regarded as a second carrier; the mass ratio of AL2O3 to La to Ce to Fe is (100 to 110) to (90 to 115) to (50 to 70) to (5 to 15); the TiO2 photocatalyst films of rare earth element Lu and non-metallic element N are loaded on the second carrier; the mass ratio of Lu to N to TiO2 in the TiO2 photocatalyst film is (0.01 to 0.16) to (0.40 to 1.88) to (97.94 to 99.54). The removal rate of the honeycomb ceramic net prepared through photocatalysis to formaldehyde and toluene in the air is 98.7% and 92.2% respectively, and the removal rate to formaldehyde and toluene in the air is improved by 2.0 times and 1.9 time respectively compared with the application of the TiO2 photocatalyst film only.

The invention relates to the technical field of water-based ink and discloses a preparation method of water-based ink, containing a composite antibacterial material, for tipping paper. The preparation method comprises the following steps: (1) preparing a chitosan modified halloysite nanotube; (2) preparing an Ag-carrying halloysite nanotube; (3) compounding the Ag-carrying halloysite nanotube with a water-based resin liquid A and a water-based resin liquid B and then compounding a mixed resin liquid with deionized water, ethanol, tea saponin, an organic pigment, a defoaming agent, a levelling agent and a buffer agent, thus preparing the water-based ink, containing the composite antibacterial material, for tipping paper. The preparation method has the beneficial effects that containing various antibacterial components, such as nano-silver, chitosan, titanium dioxide and tea saponin, the water-based ink prepared by the preparation method has strong bactericidal broad-spectrum property; the bactericidal components have synergistic effects, so that the bactericidal effects are greatly enhanced; the dispersibility of the bactericidal components in the water-based ink is quite outstanding.

The invention provides an electret non-woven filtering material with a cavity structure, and a preparation method thereof, wherein the filtering material comprises an outer-layer fiber tube and nanometer fiber yarns nested in the outer-layer fiber tube, the outer-layer fiber tube comprises polyolefin fibers and electret material micro-nano particles loaded on the surfaces of the polyolefin fibers,the electret material micro-nano particles are loaded on the surface of the polyolefin fiber through molten gas flow jetting, the electret material micro-nano particles and the polyolefin fiber generate electret charges through friction under the action of gas flow jetting, and the nanometer fiber yarns are thermoplastic polyester fiber yarns with a diameter of less than or equal to 200 nm. According to the invention, the electret charges are continuously formed under the friction action of the outer-layer electret material micro-nano particle loaded polyolefin fiber tube with a low dielectric constant and the inner-layer polyester nanometer fiber yarn with a high dielectric constant, so that the electrostatic adsorption durability is improved.

The invention belongs to the technical field of solid catalysts for activating persulfate, and particularly discloses a preparation method of a carbon cloth loaded nitrogen-doped graphene material, which comprises the following steps of (1) dispersing a nitrogen source into an organic solvent, adding non-noble metal-MOF nanoparticles as a precursor, and stirring and mixing at 60 DEG C to obtain acompound dispersion liquid, wherein the mass ratio of the nitrogen source to the non-noble metal-MOF is (1-20): 1, and (2) dropwise adding the compound dispersion liquid onto the acidified carbon cloth, and pyrolyzing to obtain the carbon cloth loaded nitrogen-doped graphene material. According to the preparation method, sacrificial elements and noble metals are not adopted, carbon cloth is takenas a substrate, and a self-assembled compound of non-noble metal MOF and a nitrogen source is pyrolyzed, so that the active nitrogen component in the catalyst is improved, the catalytic degradation performance is improved, and the material has good catalytic activity and stability. The invention also discloses an application of the material as a catalyst for activating persulfate.

The invention relates to the field of blanket preparation and discloses a process for producing a Lyocell flame-retardant fiber Raschel blanket. The process comprises the following steps: 1) weaving, namely sequentially warping, weaving and cutting tufted yarns and base yarns, thereby obtaining a Lyocell flame-retardant fiber semi-finished Raschel blanket; 2) performing preliminary finish, namely setting, brushing, lustering and rolling the fabric; 3) dyeing and finishing, namely dyeing the fabric, performing reduction clearing on the fabric, neutralizing by acetic acid solution, washing and taking out of the jar, drying, steaming and color-fixing, softening and smoothing, and finally drying again; 4) performing after-finishing, namely drying and setting the fabric, performing front lustering, front brushing, front ironing and shearing, back fuzzing, back brushing, back lustering, back shearing, re-setting, front ironing and shearing, back ironing and shearing and slice stitching; and 5) inspecting the finished product, packaging and warehousing. The Lyocell flame-retardant fiber Raschel blanket disclosed by the invention is soft, stiff and elastic in fluff and skin-friendly, moisture-absorbing/desorbing and breathable in fabric and has the characteristics of being antibacterial, healthy, green and environmentally friendly.

The invention relates to the field of organic coatings and discloses a quick-forming organic antiseptic protective film for the metal surface. The organic antiseptic protective film is formed by curing an organic antiseptic protective coating, the organic antiseptic protective coating is prepared from components in parts by mass as follows: 40-50 parts of an acrylic emulsion, 5-15 parts of inositol hexaphosphate, 5-15 parts of hydrated magnesium-aluminum silicate filler, 3-7 parts of iron oxide red, 3-7 parts of antibacterial particles, 2-4 parts of a compound tackifier, 3-7 parts of pigment, 0.5-1.5 parts of a dispersing agent, 0.5-1.5 parts of a defoaming agent, 3-7 parts of ethanol and 10-20 parts of water. The quick-forming organic antiseptic protective film has high binding force with the metal surface, no bubbles are generated after the film is formed, and the organic antiseptic protective film is corrosion resistance and ageing resistance and has an antibacterial property.

The invention discloses a vector material for immobilization of cellulase and a preparation method of the vector material. The preparation method comprises steps as follows: prepared polyacrylonitrile composite microspheres are added to DMAC (dimethylacetamide), soaked for 4-6 h, uniformly mixed with lithium chloride and then mixed with chitin and a catalyst uniformly, nitrogen is introduced, and the mixture is stirred at the room temperature for 2-4 h, then heated, stirred to react at the temperature of 100-120 DEG C for 18-24 h, cooled to the room temperature, washed with absolute ethanol and deionized water sequentially, vacuumized and dried. The vector material has good mechanical strength, better stability and relatively high binding force with enzymes and is longer in service life due to the fact that enzyme molecules cannot easily fall from a vector in use. The invention further provides a use method of the vector material for immobilization of the cellulase.

The invention provides a fabric for the protection of pneumonia germs based on graphene and a preparation method of the fabric. Polyester is modified with graphene obtained by modification of diisocyanate, the fiber in the fabric is obtained by obtained modified polyester melting spinning. The diisocyanate is reacted with hydroxyl radical on the surface of graphene oxide, and then the modified graphene is obtained after reduction; then the modified graphene is reacted with hydroxyl-terminated polyester, isocyanate on the surface of the modified graphene is reacted with terminal hydroxyl groupto enable the graphene and polyester to be chemically bonded to obtain modified polyester masterbatch; and after the modified polyester masterbatch melts spinning, the modified polyester masterbatch is crossed, wound or connected to obtain the modified polyester fabric. In order to increase the graphene loading, the hydroxyl-terminated polyester is preferred to be hydroxyl-terminated hyperbranchedpolyester. The fabric for the protection of the pneumonia germs based on the graphene and the preparation method of the fabric can significantly improve the load fastness of the graphene on the fabric by chemical bonding, and then the protective durability of the fabric against the pneumonia germs is improved.

The invention discloses a method for loading nano titanium dioxide on a textile, the textile loaded with the nano titanium dioxide and an application thereof. The method comprises the following stepsof step S1, preparation of a nano titanium dioxide solution: placing nano titanium dioxide particles, an adjuvant and a solvent in a container for mixing, adjusting the pH to be 5 to 10, ultrasonically dispersing for 2 to 5 minutes at 20 to 40kHz to obtain the uniform nano titanium dioxide solution; step S2, a textile loading process: placing the textile in the nano titanium dioxide solution, andperforming the ultrasonic treatment at the temperature of 60 to 95 DEG C for 0.2 to 2h at 20 to 40kHz; and step S3, blocking, fixing and forming: adding a water-dispersible adhesive to fix for 0.5 to1h, and drying and curing at 80 to 120 DEG C. According to the method of the invention, the manufacturing cost is low, the loading fastness of the nano titanium dioxide particles is high, and the problem of agglomeration of the titanium dioxide particles is solved. According to the textile loaded with the nano titanium dioxide prepared by the method provided by the invention, the catalytic actionbetween the nano titanium dioxide particles, air and water molecules is maximized, and the anti-fouling, anti-bacterial and anti-ultraviolet performance of the textile is improved.

The invention discloses stacking collecting equipment of a resistance melting heat preservation furnace. A bearing plate, a bottom plate, movable rods, first sliding grooves, first telescopic springs,universal wheels, connecting plates, first sliding blocks, through holes, first torsion springs, stand columns, fixing plates, second sliding grooves, rubber blocks, movable blocks, supporting plates, second torsion springs, fixing columns, second sliding blocks, second telescopic springs, stop blocks, third telescopic springs, inclined limiting blocks, clamping grooves, third torsion springs andinclined limiting grooves are included. The universal wheels are correspondingly arranged at the bottoms of the connecting plates, and the universal wheels and the connecting plates are fixed throughbolts. The first sliding grooves are formed in the center positions of the tops of the connecting plates. The first sliding blocks are correspondingly arranged in the first sliding grooves. The firsttelescopic springs are arranged between one sides of the first sliding blocks and the inner walls of the sides corresponding to the first sliding grooves. By means of the stacking collecting equipment, the size of the bearing face can be adjusted at random, and meanwhile the integral transportation stable degree is guaranteed.

The invention discloses a photocatalyst pillowcase, a preparation method of the photocatalyst pillowcase, and a throw pillow. The preparation method comprises the following steps of S1, preparing a titanium dioxide dispersion liquid, that is, putting nano titanium dioxide particles, an auxiliary agent and a solvent into a container, performing mixing, adjusting the pH value to 5-10, carrying out ultrasonic dispersion at 20-40 kHz for 2-5 minutes, and obtaining a uniform nano titanium dioxide dispersion liquid; S2, carrying out cloth loading, that is, putting cloth into the nano titanium dioxide dispersion liquid, and continuously stirring; S3, carrying out cold rolling treatment, that is, treating the cloth by adopting a cold rolling process to prepare a functional cloth; and S4, manufacturing the pillowcase, namely, sewing the functional cloth into the pillowcase. The preparation method is simple in process, the process flow is shortened, the cost is lowered, and the preparation method is more environment-friendly. The amount of loaded nano titanium dioxide in the prepared functional cloth is more, the load fastness is high, and the performance is more stable. The throw pillow disclosed by the invention comprises a pillow core and a pillowcase prepared by using the method, and an effect of long-acting cleaning can be kept at the same time due to the fact that stains contaminated by daily use can be degraded.