236results about How to "Reduce the binding force" patented technology

The invention discloses a self-repairing wave-absorbing composite material as well as a preparation method and application thereof. The self-repairing wave-absorbing composite material provided by the invention comprises the following components in percentage by mass: 30-80% of a polyurethane matrix; 20%-70% of composite wave absorbing powder; the composite wave-absorbing powder is prepared by performing plasma ball milling on graphene oxide and soft magnetic metal powder. The preparation method of the self-repairing wave-absorbing composite material comprises the following steps: 1) preparing a polyurethane prepolymer solution; and 2) dispersing the composite wave-absorbing powder in a polyurethane prepolymer solution, injecting the solution into a mold, and carrying out curing molding to obtain the self-repairing wave-absorbing composite material. The self-repairing wave-absorbing composite material disclosed by the invention is excellent in wave-absorbing property and mechanical property, the material can realize quick self-repairing, the stability of the wave-absorbing property and the mechanical property is ensured, and the composite material is suitable for the fields of 5G communication, new energy automobiles, national defense and military industry and the like.

The invention further discloses a preparation method of the wide-temperature-range, high-performance and high-binding-force soft and hard composite coating. The preparation method comprises the steps of cleaning, ion implantation, preparation of a soft layer metal Ti, preparation of a hard layer TiZrAlCrSiMN, preparation of a soft layer metal Zr and preparation of the hard layer TiZrAlCrSiMN. The invention further discloses application of the wide-temperature-range, high-performance and high-binding-force soft and hard composite coating in a dry cutting tool. The invention discloses the wide-temperature-range high-performance high-binding-force soft and hard composite coating which is prepared through the preparation method, and the wide-temperature-range high-performance high-binding-force soft and hard composite coating solves the problems that an existing tool coating is low in high-temperature hardness, poor in abrasion resistance and poor in erosion resistance and cracking resistance.

The invention belongs to the technical field of calcium silicate board production, and particularly relates to a plate-making forming device for improving the quality of a calcium silicate board blank, which comprises a rack, and a headbox, a felt belt, a breast roll, a forming roll and a cleaning box are mounted on the rack; a passing opening is formed in the cleaning box, the felt belt penetrates through the cleaning box from the passing opening, a guide roller is installed in the cleaning box, and the felt belt is in a U shape in the cleaning box; a water spraying plate is mounted in the cleaning box, and the felt belt is immersed below the liquid level in the cleaning box; a cleaning roller is installed in the cleaning box and makes contact with the lower surface of the felt belt, and the rotating direction of the cleaning roller is opposite to the moving direction of the felt belt. The cleaning device is simple in structure, the felt belt can be cleaned in an immersed mode in the cleaning box, the cleaning box is divided into a plurality of cleaning grids, the cleaning effect of the felt belt is improved, and slurry after cleaning is prevented from being attached to the felt belt again.

The invention discloses a forestry engineering tree transplanting protection method, and relates to the technical field of tree transplanting protection, the forestry engineering tree transplanting protection method comprises two base plates, and the tops of the two base plates are provided with fixing rings. According to the forestry engineering tree transplanting protection method, in the tree transplanting process, the two base discs are driven by the driving motor to synchronously rotate, the four wrapping plates can be close to one another and obliquely combined through cooperation of the guide grooves and the first connecting rods, soil balls wrapping the roots of the trees are compacted, the stability and integrity of the trees in the transplanting process are ensured, and the transplanting efficiency is improved. Meanwhile, a base disc rotates to enable a fixing plate to make contact with a touch block, under the cooperation of a sliding column and a spring, a wrapping plate slightly vibrates in the approaching process, the binding force between soil and the root system of the tree is weakened, the root system is separated from the soil more easily, and direct pulling and damage to the root system are reduced; the integrity and the health state are protected, and the survival of the transplanted trees is also facilitated.

The invention provides a primer design method of a multiplex PCR targeted sequencing technology, which designs a primer with high specificity and wide genome coverage rate by combining multiple indexes with fine screening of high-quality species genomes, effectively optimizes the formation of dimers of a primer system, and improves the specificity and efficiency of detection. According to the technology, the high specificity is guaranteed, meanwhile, the performance of a multiple primer system is remarkably improved, the common dimer problem is optimized, and the high efficiency of multiple pathogen detection is guaranteed.

The invention relates to the technical field of electroplating processes and equipment, in particular to a local electroplating process and an electroplating system. In the local electroplating process of the electroplated part, after the electroplated part is pretreated, pollutants on the surface of the electroplated part are removed, and the electroplated part reaches a good activated state. After an electroplated part is pretreated, a to-be-electroplated area of the electroplated part is covered with a mask, the electroplated part is immersed in wax liquid, and the surface of the electroplated part is covered with a wax film. And after the wax film is formed on the surface of the electroplated part, removing the mask in the to-be-plated region, further exposing the to-be-plated region out of the wax film, immersing the electroplated part into the electroplating liquid, and further electroplating the to-be-plated region. After electroplating is completed, no metal ions are deposited because the non-electroplating area is covered by the wax film. And after the electroplating is completed, removing the wax film adhered to the electroplating part, so as to obtain the electroplating part subjected to local electroplating. In this way, local electroplating of the electroplated part is achieved.

The invention discloses a preparation method of an intelligent anti-icing coating for a power transmission line, which comprises the following steps: firstly preparing a near-infrared photothermal filler and a graded heat storage deicing filler, and then mixing and stirring the near-infrared photothermal filler and the graded heat storage deicing filler with epoxy resin, a silane coupling agent, a curing agent, a defoaming agent and a solvent to obtain the intelligent anti-icing coating. And finally, uniformly spraying the intelligent anti-icing coating on the cable, and carrying out high-temperature curing treatment to obtain the intelligent anti-icing coating. The non-uniform surface formed by different size grading and silane hydrophobic modification reduces the binding force between the ice coating and the coating; the near-infrared photothermal filler expands a photothermal spectrum to a near-infrared part, and meanwhile, the high thermal conductivity of the near-infrared photothermal filler is convenient for transferring heat to the surface ice melting and heat storage deicing filler to store the heat, so that the photothermal performance is improved; the photo-thermal material can absorb heat of the sunlight conversion layer in a wide spectrum to directly melt the ice layer, and part of the heat is stored in the phase change material to realize continuous ice melting through phase change heat release under the dark condition, so that the service life of the cable is prolonged.

The invention belongs to the technical field of polyurethane resin, and particularly relates to a preparation method and application of thermoplastic carbon fiber sizing agent waterborne polyurethane resin.The preparation method comprises the following steps that (1) a prepolymer is prepared, specifically, 72-76 parts of polyester polyol and 20-24 parts of isocyanate are mixed and react, 13-16 parts of dimethylolpropionic acid and 6-9 parts of 1, 4-dihydroxy-2, 3, 4-trimethyl-1, 3, 4-trimethyl-1, 3, 4-trimethyl-1, 3-trimethyl-1, 3-trimethyl-1, 3-trimethyl-1, 3-trimethyl-1, 3-trimethyl-1, 3-trimethyl-1, 3-trimethyl-1, 3-trimethyl-1, 3-trimethyl-1, 2, 2-dimethyl piperazine and 40-50 parts of acetone react, 1-3 parts of triethylamine is added, a reaction is conducted for 5-10 min, then 2-4 parts of sodium ethylenediamine ethanesulfonate is added, and a prepolymer is obtained; (2) emulsifying: transferring the prepolymer into an emulsifier, adding 280-300 parts of an ice-water mixture, stirring, adding 6-8 parts of an ethylenediamine aqueous solution with the mass fraction of 18-20%, standing for 20-24 hours, removing acetone, adding a coalescing agent, a wetting agent, a defoaming agent and a lubricating agent, and uniformly stirring to obtain the waterborne polyurethane resin.

The invention discloses a color fixative for colorful potatoes and a color protection method for the colorful potatoes, and belongs to the technical field of deep processing of agricultural products. The color fixative used in the invention is composed of citric acid, ascorbic acid, L-cysteine, gallic acid and water, and the mass ratio of the citric acid to the ascorbic acid to the L-cysteine to the gallic acid to the water is (0.4-0.6): (0.4-0.6): (0.2-0.3): (0.6-1): 100. The preparation method comprises the following steps: peeling fresh flower-color potatoes, dicing, soaking in a color fixative for 40 minutes, pre-drying diced potatoes, freezing and thawing, drying with hot air, crushing and sieving to obtain raw whole flour; through the color protection treatment, enzymatic browning of the flower-color potatoes can be reduced, meanwhile, the color of the potatoes is reserved, and the stability of anthocyanin is improved.

The invention discloses a fluoride corrosion resistant photovoltaic panel self-cleaning coating which is prepared by reaction of the following raw materials: a component A, a component B and 10-20 parts of nano nickel oxide, the component A is organic silicon modified fluorocarbon resin, the component B is an organic silicon modified fluorocarbon resin curing agent, and the nano nickel oxide is an organic silicon modified fluorocarbon resin curing agent. The component B is prepared from the following components in parts by weight: 100 to 120 parts of hexamethylene diisocyanate tripolymer, 35 to 45 parts of monohydroxyl terminated polydimethylsiloxane and 30 to 35 parts of octafluoro-1, 6-hexanediol; all the parts represent parts by weight. The fluoride corrosion-resistant photovoltaic panel self-cleaning coating disclosed by the invention can effectively resist the corrosion effect of fluoride, and also needs to have an excellent self-cleaning function.

The invention provides a hexagonal sheet-shaped melamine cyanurate and a preparation method and application thereof, and relates to the technical field of polymer material flame retardants. The melamine cyanurate in the form of particles with a regular hexagonal sheet structure solves the technical problem that when melamine cyanurate is used as a nano-scale material, the material is easy to agglomerate and difficult to disperse due to high surface free energy, too small size and poor fluidity, and achieves the technical effect of significantly reducing the surface free energy of nano-scale melamine cyanurate and weakening the binding force between its particles.

The invention relates to a molecular identification method of insects, in particular to species-specific primers and a method for identifying chrysopa septempunctata. According to the method for determining the difference sites of the species based on comparison of representative haplotype sequences of the species, the sequence composition difference, caused by geographical isolation, of COI genes in the species is considered, primers capable of distinguishing different species are designed, particularly, combination of similar sequences of the primers and non-target species is reduced between similar species, and the specificity of the primers is improved. Therefore, the possibility of non-specific amplification is reduced. The species-specific primer for identifying chrysopa septempunctata, provided by the invention, is high in sensitivity, and the lowest requirement on the concentration of DNA to be detected is 0.0655 ng / mu L which is lower than the lowest detection concentration 0.143 ng / mu L of the disclosed species-specific primer for chrysopa formosa brauer.

The present invention discloses a method and device for easily separating and producing graphene, which is based on the preparation of graphene by direct current arc plasma discharge method. The method comprises the following steps: mixing carbon source gas with nanocatalyst and then spraying the mixture into a magnetically enhanced plasma reaction chamber through a venturi ejector, dispersing the nanocatalyst into an airflow, and using the nanocatalyst particles as nucleation sites for graphene growth to obtain vertically oriented graphene. The rear end of the reactor is rapidly cooled and a magnetic field is added to weaken the binding force between the catalyst and graphene, thereby making it more conducive to ultrasonic treatment, purification and collection of the product graphene; the method of the present invention can produce relatively pure graphene nanoribbons, which are easy to remove from the catalyst, and can also recover the catalyst, providing a solution for large-scale continuous operation.

The application belongs to the technical field of circuit board manufacturing, and particularly relates to an embedded circuit board and a preparation method thereof. The preparation method of the embedded circuit board comprises the following steps: obtaining an embedded module, manufacturing a first bonding layer on at least part of the surface of the embedded module; placing the embedded module in a containing groove formed by communication of the grooves, and pressing the laminated plate structure to embed the embedded module in the containing groove; pressing a second build-up layer to fan out signals of the embedded module to the first build-up layer; forming an insulating layer and a connecting layer on the second build-up layer to obtain the embedded circuit board. The first bonding layer on the surface of the embedded module has high bonding force and stress buffering effect with the embedded module, an SIC chip and resin, and can be used as an intermediate buffering layer to connect the embedded module and a PP layer, thereby effectively reducing the problem of delamination due to insufficient bonding force.

The invention relates to a blood type specificity IgG antibody typing detection reagent card, a kit and a preparation method thereof. The blood type specificity IgG antibody typing detection reagent card comprises a plurality of accommodating holes and information identifiers, magnetic beads coated with anti-erythrocyte antibodies, acridinium ester-labeled anti-human IgG antibodies of different subtypes, and a working solution are respectively arranged in the accommodating holes. The preparation method comprises the following steps: preparing magnetic beads coated with anti-erythrocyte antibodies and different subtypes of anti-human IgG antibodies marked by acridinium ester; respectively mixing the magnetic beads coated with the anti-erythrocyte antibodies and the acridinium ester-labeled anti-human IgG antibodies of different subtypes with a protection solution; and the information identification is arranged on the outer side of the containing hole. The blood type specificity IgG antibody typing detection kit comprises the reagent card, a pre-excitation solution and an excitation solution. The reagent card is high in specificity, easy and convenient to operate and suitable for large-scale clinical detection, and the detection efficiency and accuracy are improved.

The invention discloses an application of ultrasound and teuvincenone H diterpenoid treatment in reduction of tenebrio molitor protein allergy, the tenebrio molitor protein is treated by ultrasound and teuvincenone H diterpenoid, so that the binding capacity of the tenebrio molitor protein and immunoglobulin E (IgE) can be reduced, and the allergy of the tenebrio molitor protein is further reduced. The invention discloses other effects of teuvincenone H diterpene except for anti-tumor and anti-inflammatory effects for the first time, and the method has the advantages of simple process steps, short treatment time, low temperature, high efficiency, rapidness and environmental friendliness, is beneficial to wide application of related technologies in the field of food industry, and provides a brand new scheme for developing safe and high-quality insect protein food.

Provided herein are improved rAAV (e.g., rAAV2, rAAVrh8R, etc.) for enhanced gene therapy of ocular disorders or CNS disorders wherein the rAAV comprise one or more substitutions of amino acids that interact with heparan sulfate proteoglycan. The invention provides methods for improved transduction of retinal cells and methods for treating ocular diseases with improved compositions of rAAV particles. Further provided herein are improved recombinant adeno-associated virus (rAAV) (e.g., rAAV2, rAAVrh8R, etc.) for enhanced gene therapy of disorders of the CNS. The invention provides methods for delivering the rAAV to the CNS, methods for treating disorders of the CNS with improved compositions of rAAV particles, and kits for delivering the rAAV to the CNS and / or treating a CNS disorder.

The invention discloses a multi-layer composite component and a preparation method thereof and a wind power blade, the multi-layer composite component comprises the following layers: a) a PE film at least containing ultra-high molecular weight polyethylene, b) a fiber layer and c) an elastic layer, the fiber layer is arranged between the PE film and the elastic layer, and the fiber layer is at least partially embedded in the PE film and / or the elastic layer; the PE film and the fibrous layer are joined in a first process to form a laminated composite, and the elastic layer is joined to the other side of the fibrous layer opposite the PE film in a second process to form the multilayer composite member. The multi-layer composite component has comprehensive performance such as high interlayer bonding strength and overall mechanical strength and excellent fatigue resistance, and the wind power blade manufactured through the multi-layer composite component is simple in manufacturing process, low in cost and capable of being safely applied to the severe environment for a long time.

The present invention relates to a high temperature wear resistant dry brake friction plate material and a preparation method thereof, belonging to the technical field of alloy friction materials. The material strengthens the iron-copper alloy matrix by precisely controlling the addition amount of Mo and Y2O3; adds a high entropy alloy strengthening phase (Al‑Cr‑Fe‑Ni‑Ti) to the iron-copper alloy to improve the wear resistance; adopts a composite lubricating phase (CaF2+BaF2+Ag), and adjusts its ratio so that CaF2‑BaF2 weakens the two-body wear effect and Ag weakens the three-body wear effect, thereby achieving the improvement of lubrication performance under high temperature and room temperature conditions; adds a high entropy alloy strengthening phase (Al‑Cr‑Fe‑Ni‑Ti) and a composite lubricating phase (CaF2+BaF2+Ag) at the same time, and adjusts its ratio so that (CaF2+BaF2+Ag) weakens the adhesive wear effect and (CaF2+BaF2+Ag) weakens the abrasive wear effect, thereby reducing the friction coefficient and wear rate.

The invention belongs to the technical field of protein preparation, and discloses a walnut hypoallergenic complex protein, a preparation method and an application, wherein shelled walnuts are ground to obtain walnut powder, acetone is added to defat and then a protein extract is added to extract crude protein, isoelectric precipitation, ammonium sulfate graded precipitation, dialysis desalination, and freeze drying are performed to obtain walnut allergenic protein; the walnut allergenic protein is dissolved in ultrapure water, a free radical initiator is added, polyphenols are added to form a walnut protein-polyphenol complex, the sample solution is dialyzed to ensure that unreacted polyphenols are completely removed, and a hypoallergenic complex is obtained after freeze drying. The first seven kinds of walnut proteins extracted by the present invention are all allergenic proteins, and the complex prepared by the present invention adopts a free radical grafting method, which is simple to operate and does not produce toxic byproducts. The complex prepared by the present invention belongs to a hypoallergenic protein, which can reduce allergenicity by changing the spatial structure of walnut protein.

The invention relates to a production process of borscht bags. Comprising the following steps: step 1, mixing yeast, iodine salt, white granulated sugar, potassium sorbate, water, egg pulp and a fermentation promoting agent, and stirring until the white granulated sugar is melted to obtain a mixture A; step 2, adding bread wheat flour into the mixture A, and continuously stirring at a second rotating speed to obtain a mixture B; step 3, adding butter into the mixture B, stirring at a first rotating speed, and then stirring at a second rotating speed to obtain a mixture C; step 4, adding vegetable oil into the mixture C, and stirring at a second rotating speed to obtain dough; and step 5, cutting, shaping, rolling, standing and baking the dough to obtain the borscht. The borscht which is good in flexibility, uniform in size and good in taste is formed by mixing the raw materials according to the specific combination, dosage and rotating speed. The process can be used for large-scale continuous industrial production, and compared with small-scale production, the production efficiency is improved, and meanwhile better comprehensive quality is obtained.

A composition containing a docetaxel albumin nanoparticle. The composition contains docetaxel and an acid-denatured albumin, wherein the acid-denatured albumin is obtained by means of adding an acid to human serum albumin to adjust the pH value. The composition can be prepared into an injection or a freeze-dried powder injection. A composition with satisfactory physical and chemical stability is obtained by means of controlling the content of sodium octanoate in human serum albumin, preferably in an acid denaturation condition.

According to the instant ruditapes philippinarum food and the processing method thereof, ruditapes philippinarum is used as a raw material, and vacuum rolling, TG enzyme-ultrasonic coupling treatment, vacuum impregnation and far infrared drying and dehydration technologies are combined in the main steps of raw material pretreatment, pre-dehydration, seasoning, drying and the like. The allergen of the clam meat instant product is effectively reduced, the elasticity of the clam meat instant product is increased, the taste of the clam meat is ensured, and the clam meat instant product has certain reference significance for development of instant shellfish products.

The invention discloses a photocatalytic self-cleaning silicate type lithium ion sieve and a preparation method thereof, the surface of a natural spodumene carrier is coated with a bismuth terbium photocatalytic material co-doped spodumene component mixed hydrosol, and the pH value of the mixture hydrosol is adjusted to 4-6 to form gel; further carrying out compression molding, drying, high-temperature transformation and acidification lithium removal on the gel to form the photocatalytic self-cleaning silicate type lithium ion sieve. The chemical composition of the material is HAl (1-x-y) BixTbySi2O6 / nH (1-z) LizAlSi2O6, x is equal to 0.02 to 0.2, y is equal to 0.01 to 0.1, z is equal to 0.50 to 0.90, and n is equal to 1 to 3; when the adsorbent is used for adsorbing lithium ions in simulated oilfield water, the saturated adsorption capacity of the lithium ions is 18-27mg / g, and the saturated adsorption capacity of the lithium ions is only reduced by 3%-5% after five times of adsorption and desorption cycles; the material can be used for adsorbing and extracting lithium from salt lake brine, seawater, oil and gas field water and industrial wastewater. Bismuth and terbium are co-doped, so that the lithium ion sieve is endowed with a photocatalytic self-cleaning function and anti-pollution capacity, and the lithium ion saturation adsorption capacity of the lithium ion sieve is improved; the bismuth-terbium co-doping thermal chemical reaction and the high-temperature transformation treatment are completed in one step, and the preparation process is energy-saving and environment-friendly.

The invention provides a light emitting diode, a manufacturing method and an LED core particle, a first laser cutting line is formed in a substrate of the light emitting diode through a laser implicit cutting process, and the first laser cutting line comprises a plurality of laser holes arranged at intervals. And finally, a longer and narrower laser hole is formed when the laser is focused in the substrate, and a deeper first laser cutting line is formed. And the internal scratches with increased depth are beneficial for releasing laser heat energy to the outside as soon as possible, and the internal influence of the heat energy on a processed object is reduced, so that the processing straightness is improved, and the problems of burrs, edge breakage and the like are reduced. Meanwhile, the relatively deep internal scratches also reduce the binding force between the connected chips, and are more beneficial to splitting so as to obtain flat and straight chip edges. Besides, shallow pits can be left in the side wall of a single core particle after the long and narrow laser holes are cracked, the side wall of the core particle cannot be corroded too much, and therefore the risk that the core particle is broken along the pits is reduced.

The invention discloses a refining method for improving the hit rate of boron-containing steel components, which comprises the following steps: LF (ladle furnace) rapid deoxidation and slagging, whole-course micro-positive-pressure nitrogen control, out-station slag condition adjustment, RH (Ruhrstahl Heraeus) station entering and carbonized rice husk adding, steel ladle bottom blowing argon gas opening in advance at the RH vacuum final stage, RH vacuum breaking argon gas flow setting, bulk ferroboron weighing and bagging. Setting calcium treatment speed and argon bottom blowing; adding carbonized rice husks to cover an argon port after calcium treatment; and sampling to confirm the boron content. The method has the advantages that the boron content hit rate of the boron-containing steel is increased and stabilized in the RH furnace refining process, the alloying effect is obviously improved, the boron component control difficulty and the recovery rate fluctuation are reduced, and the ferroboron yield is increased.

The application belongs to the technical field of ship exhaust purification, and particularly relates to a catalyst for decomposing N2O in the exhaust of a ship ammonia internal combustion engine and a preparation method thereof. 3+ By replacing Co ions in the Co3O4 spinel lattice into the lattice, the doping behavior can effectively reduce the number of hydroxyl groups on the surface of the catalyst, significantly weaken the adsorption and combination ability of water molecules, and thus improve the stability of the catalyst in a high-humidity exhaust environment. As an additive, CeO2 uses its oxygen storage capacity to promote the migration and desorption of oxygen species in the reaction, preventing the deactivation of active sites due to oxygen poisoning. The molecular sieve carrier not only provides a highly dispersed surface for the active component to prevent sintering, but also optimizes the adsorption and activation path of N2O and alleviates the poisoning effect of nitrogen-containing intermediate species or impurities in the exhaust on the Co active center during the reaction.

The invention discloses special steel sand for a 3D printing metal casting mold and a preparation method of the special steel sand, belongs to the technical field of steel sand processing, and aims to solve the technical problems of poor dimensional stability of a sand mold at a high temperature and poor collapsibility of the sand mold added with the steel sand due to thermal expansion coefficient difference between the steel sand and standard sand in the prior art. The method comprises the following steps that steel grit, absolute ethyl alcohol and KH-560 are added into a reaction kettle to be stirred, the temperature of the reaction kettle is increased to 50-55 DEG C, and a sodium hydroxide solution is added into the reaction kettle. After the element composition and particle size distribution of the steel grit are optimized and the steel grit is subjected to surface modification, the modified steel grit is enhanced by using a mixed modification solution, and the strength of the steel grit is improved; and special steel sand is prepared and mixed with standard sand for 3D sand mold printing, so that the normal-temperature compressive strength and dimensional stability of the sand mold are effectively enhanced, and the collapsibility of the sand mold is also improved.

The invention provides a composition, a kit and a method for detecting African swine fever virus, and relates to the technical field of gene detection. The primer group and the probe provided by the invention are used for detecting the African swine fever virus, the probe is a ZIPNA probe, the ZIPNA probe comprises a 5 '-terminal fluorophore, a 3'-terminal quenching group and a spermine group, and the ZIPNA probe can provide higher detection specificity because non-specific binding and background signals can be more effectively reduced. The positive ions coupled with the ZIPNA probe can neutralize negative charges of target nucleic acid and reduce electrostatic repulsion, and meanwhile, the ZIPNA probe coupled with a certain number of positive ion groups can reach a preset Tm value. The ZIPNA probe can effectively replace a small groove conjugate and locked nucleic acid, and can be used in various application fields based on nucleic acid detection. The ZIPNA probe has the advantages of being high in detection fluorescence increment, high in detection specificity, good in repeatability, high in sensitivity and the like, and practical application is facilitated.

The invention discloses a cellulose fiber material and a preparation method thereof.The preparation method of the cellulose fiber material comprises the following steps that a metal salt solution and a lactic acid solution are added into dispersion liquid of cellulose fibers, and a mixed product is obtained; and carrying out pre-pressing treatment on the mixed product, and then carrying out hot-pressing treatment to obtain the cellulose fiber material. According to the cellulose fiber material and the preparation method thereof, the metal salt solution and the lactic acid solution are added into the dispersion liquid, and the ionic crosslinking and chemical crosslinking synergistic method is adopted, so that the interface bonding between cellulose fibers is improved, the bonding force between the cellulose fibers and water is weakened, and the dehydration efficiency of the cellulose fiber material is improved.