147results about How to "Not easy to combine" patented technology

The invention provides high-strength lightweight aggregate concrete. The concrete comprises the following raw materials in parts by weight: 350 to 550 parts of cementing material, 450 to 600 parts oflightweight fine aggregate, 500 to 650 parts of lightweight coarse aggregate, 5 to 7 parts of an additive, and 150 to 170 parts of water. The lightweight fine aggregate comprises 60 to 80 percent of fine aggregate ceramsite in mass percent, and 20 to 40 percent of active construction waste powder in mass percent; the lightweight coarse aggregate comprises the following components in mass percent:50 to 75 percent of coarse aggregate ceramsite, 10 to 30 percent of stone gangue, 10 to 20 percent of ceramic waste residue, and 3 to 8 percent of expanded graphite. The concrete reasonably utilizes the stone gangue, construction waste, urban sludge and ceramic waste residue into a gel material and aggregate, not only improves the mechanical strength and stability of the concrete, but also provides a novel approach for the reuse of solid waste, and is beneficial to energy saving and environmental pressure relieving.

The invention discloses a protein. The provided protein is the following protein (1) or (2): the protein (1) is formed by an amino acid sequence shown by a sequence 2 in a sequence table; and the protein (2) is formed by the amino acid sequence of the sequence 2 in the sequence table through the substitution and/or deletion and/or addition of one or several amino acid residues, can be combined with IgE molecules and is derived from the protein (1). The protein has higher affinity with the IgE; Fc epsilonR I alpha and IgG2 are both derived from humanized protein, and the protein has no antigenicity, does not need humanized reconstruction, has a longer half life, and has the molecular weight of 170kDa which is larger than the molecular weight of sFcepsilonR I alpha. The protein has potential value on treating anaphylactic diseases including asthma, allergic rhinitis, atopic dermatitis, food allergy and the like.

The present invention is one kind of antibacterial household paper and its making process. The paper contains at least one kind of antiseptic and at least one kind of retention assistant. Its making process includes making pulp, making paper, stoving and other steps, and has antiseptic and retention assistant added during the steps of making pulp and making paper. The antibacterial paper of the present invention has the antiseptic maintained in paper for long time to produce lasting antiseptic function and bactericidal effect.

The invention relates to the technical field of brake materials, in particular to a powder metallurgy friction material for high-speed train braking and a preparation method of the powder metallurgy friction material. The powder metallurgy friction material is prepared from the following raw materials: copper powder, iron powder, copper-plated flake graphite, copper-plated graphite granules, chromium iron powder, molybdenum disulfide powder and alumina fiber through a powder metallurgy process. The powder metallurgy friction material has good mechanical properties, and is stable in friction coefficient, small in abrasion loss and good in thermal failure resistance; through the adopted raw materials and the ratio, the friction material with excellent properties can be prepared at the relatively-low sintering pressure and temperature, energy consumption is saved, a preparing process is simple and easy to control, the performance is excellent, and good application prospects are achieved.

The invention relates to an improvement to a pulling cable used for an under-well mining machine. The invention is characterized in that a chlorosulfonated polyethylene rubber internal-protection layer is directly extruded and coated on the outer part of an intertwisted flexible cable core; a fiber weaved layer which is provided with a 20 to 40 percent weaving density and can resist sulfuration temperature is directly coated without sulfuration process, and a chlorosulfonated polyethylene rubber external-protection layer is directly extruded and coated on the outer part of the weaved layer, and then a one time sulfuration shaping process is carried out. The jointing between the cable core, internal protection layer and the external protection layer are better, and a force is brought not only to the internal and external protection layers together, but also to the cable core; and a cable frequent coiling anti-pulling force is brought to an integrated cable but not the external protection layer alone, thus the integrated tensile capacity of the cable is greatly enhanced and the service life can be prolonged by 10 to 15 times. And a '3 plus 3' structure of the cable core not only can lead the bending radius to be reduced to 6 times of that of a cable diameter, but also can enhance the stability of the cable structure and is good for being against bending and wearing. The cable of the invention has good bending capability and is resistant for frequent moving, collecting and expanding, and the protection layer has high tensile strength.

The invention discloses a melting curve analysis based oral pathogen multiple PCR (polymerase chain reaction) detection method. The method is characterized by achieving multiple detection of five common oral pathogens by simultaneously amplifying specific target sequences of porphyromonas gingivalis, helicobacter pylori, fusobacterium nucleatum, streptococcus mutans and staphylococcus aureus in the oral pathogens by adopting multiple PCR and then carrying out improved Taqman probe melting curve analysis and identification. By adopting multiple PCR, the method is simple in detection operation, is short in detection cycle, can avoid false positive, also dispenses with pipe opening operation, can be reused, has the effect of saving resources and the cost and has high detection sensitivity and specificity.

The invention discloses composite conductive paste and a preparation method and application thereof, and belongs to the field of conductive paste. The composite conductive paste comprises a conductivematerial, an auxiliary agent and a solvent; the conductive material comprises three-dimensional graphene particles and a compound conductive agent, the three-dimensional graphene particles are prepared by a method of taking carbon material powder as a substrate to vertically grow graphene, the particle size is 100-300 nm, and the edge graphene thickness is 1-3 atomic layer; the compound conductive agent comprises any one or more of conductive carbon black, carbon nanotubes and carbon nanofibers. The composite conductive paste improves the resistivity of the pole piece and the specific discharge capacity; meanwhile, the conductive material in the composite conductive paste is not easy to agglomerate and has good stability. Another purpose of the invention is to provide a preparation methodof the composite conductive paste so as to overcome the phenomena of poor paste dispersion effect, non-uniform particle size distribution and particle agglomeration caused by a single dispersion process.

The invention belongs to the technical field of biological detection, and relates to a method for separating and purifying exosomes. Exosome suspension containing impure protein is obtained from a sample through separation, and hydroxyapatite is used for separation and purification to obtain the pure exosomes. The method is simple and convenient to operate and low in cost, high-purity exosome particles can be obtained fast and efficiently, and downstream experiments of exosome protein analysis, exosome DNA/RNA extraction, exosome electron microscope analysis, exosome particle size analysis andthe like are convenient; the method has very good application prospects.

The invention relates to a ceramic coating for a pot. The ceramic coating for the pot is characterized by comprising, by weight, 30-40 parts of zirconium oxide, 60-70 parts of aluminum oxide, 4-8 parts of cerium oxide, 1-5 parts of titanium boride, 1-5 parts of boron phosphate, 4-12 parts of steel fiber, 1-10 parts of hollow microspheres, 5-30 parts of aluminium dihydrogen phosphate and 5-15 parts of deionized water, wherein the surfaces of the steel fiber is provided with a Ni-P alloy cladding layer. The invention further relates to a preparation method of the ceramic coating. The aluminium dihydrogen phosphate has good suspension effect and good cohesiveness, is easily dispersed in the materials evenly, has good heat impact resistant performance and accordingly ensures that ceramic does not breaks after a pot body is repeatedly heated and cooled. The aluminium dihydrogen phosphate has good chemical stability and heat stability, so that the ceramic coating does not cause threat to the health of a human body. The hollow microspheres can remarkably improve the abrasion resisting performance of the ceramic coating, the ceramic coating is not easily damaged, and the service life of the ceramic pot is effectively prolonged.

The invention discloses a micro-encapsulated broad spectrum pollution-free fertilizer with pesticide, a preparation method and application thereof. The fertilizer with pesticide consists of 1 to 10 portions of pesticide microcapsule and 90 to 99 portions of nutrient substances in portion by weight. The preparation method thereof mainly comprises the following steps: filling the pesticide into a reaction kettle and thoroughly dissolving the pesticide by a solvent, adding wall material monomer and Tween into the kettle respectively, evenly mixing the solution, conveying the mixed solution to a shear emulsion reaction kettle by a pump to carry out shear emulsion reaction, and forming capsules to obtain the pesticide microcapsule; and adding the nutrient substances into the pesticide microcapsule, fully stirring and evenly mixing the mixture to obtain the natural product micro-encapsulated broad spectrum pollution-free fertilizer with pesticide. The chemical compatibility and physical stability problem of the prior pesticide fertilizer preparation in a same system can be effectively solved by using the method. The product has the advantages that the fertilizer with pesticide has shielding and slow-release functions, the chemical compatibility and physical stability are good, the drug effect is durable, the using cost is low, and the production process is simple.

The invention discloses a preparation method for an antireflection film of a solar cell. The preparation method comprises the following steps of forming a layered structure on substrate patterned glass by means of electrostatic adsorption effects of silica and a polystyrene sphere template; and removing the polystyrene sphere template by drying and tempering, and thus obtaining the silica antireflection film. The invention provides the preparation method for the antireflection film of the solar cell, which is low in cost and simple in process. A silica- polystyrene structure is formed due to the electrostatic adsorption between the silica and polystyrene spheres, and the silica is difficult to combine with moisture in air because of the hydrophobicity of the polystyrene spheres, so that the adhesion between the film and a substrate is improved. The silica film prepared by the preparation method has a porous structure, and the refractive index approaches to desirable refractive index, so that the light transmittance is enhanced and can go up to 95.4 percent. The photoelectric conversion efficiency of the solar cell is improved by increasing the light transmittance, and a certain promotion effect of popularizing the wide application of the solar cell is achieved.

The invention relates to a preparation method of an iron complex, which is implemented by mixing iron chloride and at least one chelator in a solvent, so that iron ions Fe<3+> of the iron chloride react with the at least one chelator to form the iron complex of which the general formula is Fe[R1]a[R2]b[H2O]c<3+> or Fe[R1]a[H2O]c<3+>, wherein R1 and R2 are respectively one of diethylenetriamine, triethylenetetramine, ethylene diamine, 1,10-orthophenanthroline and 2,2'-dipyridine. The invention also provides a preparation method of iron oxide, which comprises the following steps: separating the iron complex from an iron complex solution, drying the iron complex, and carrying out heat treatment. The invention also provides a preparation method of an iron oxide/carrier catalyst, which comprises the following steps: mixing iron chloride, at least one chelator and a carrier in a solvent, and reacting to form an iron complex; drying the iron complex adsorbed to the carrier; and carrying out heat treatment on the dried iron complex adsorbed to the carrier, thereby obtaining the iron oxide/carrier catalyst.

The invention discloses an anti-novel coronavirus antibody. The antibody is a high-titer specific antibody extracted from chicken egg yolk, the chicken egg yolk is mainly obtained from eggs laid by immunized hens, and the immunized hens are healthy hens injected with novel coronavirus vaccines. The invention also discloses an adjuvant drug for preventing and controlling the novel coronavirus, which takes the antibody for resisting the novel coronavirus as a main component. The drug exerts the characteristics of the antibody for resisting the novel coronavirus, can be specifically combined withthe novel coronavirus of the oropharynx and the nasal cavity in a short time, is long in retention time, painless, non-irritant, good in safety performance and free of toxic and side effects, can beused for prevention and blocking of novel coronavirus infection and adjuvant therapy of early infection, and can be used for group virus prevention and control adjuvant medication.

The invention discloses a method for producing feed additive for preventing and curing pig anemia and comprises the following technique steps: 1. preparing traditional Chinese medicine extract; 2. absorbing the traditional Chinese medicine extract with an absorbent; 3. mixing the absorbed semi-finished product with porphyrin iron, copper lysine, zinc glycinate and auxiliary materials to obtain the finished product. The invention has the advantages that porphyrin iron can be directly absorbed by an organism and can be synthesized with haptoglobin (Hp) into hemoglobin with low energy consumption, high efficiency and fast blood enrichment speed so as to effectively prevent and cure piglet anemia; the traditional Chinese medicine extract can effectively kill pig endoparasite; the product has good efficacy both for pig anemia and parasite infection; the product accelerates synthesis of in vivo hemoglobin and increases hemoglobin quantity to promote in vivo blood circulation, eliminate striving for nutrients from parasite, eliminate anemia symptom, improve metabolic rate of pig organism, and cause the skin of pig to show healthy pink color.

The invention provides wave-absorbing coating and a preparation method thereof. The preparation method comprises the following steps: adding wave-absorbing iron powder into an n-butyl alcohol solutionof a silane coupling agent step by step, adding ammonia water, deionized water and an ethanol solution of a silica gel coupling agent, adding a silicate ester ethanol solution, reacting, centrifuging, washing, drying (under the protection of nitrogen), ball-milling, and carrying out heat treatment to obtain SiO2 modified wave-absorbing iron powder; adding the modified wave-absorbing iron powder into a resin matrix, uniformly mixing, and then adding a diluent and an anti-settling agent; after uniformly stirring, carrying out ultrasonic dispersion, adding a curing agent, and uniformly stirringto obtain the wave-absorbing coating. By applying the modified wave-absorbing iron powder to the coating, the requirements of thinness, lightness, width and strength of wave-absorbing paint can be met, and the coating can be applied to the fields of ships, naval vessels, radar antennas, electronic shielding and the like.

The present invention discloses an artery medicament elution bracket, which is a net-shaped hollow tubular body made by processing a cobalt-chromium alloy with laser engraving and electro-polishing cochrome. The bracket comprises more than one annular-wave-shaped supporting bar and connecting rods which are alternately and spirally connected between the supporting bars. The shape of the connecting rod is an array of waves formed by more than one connected sinusoidal waveform unit, and curve-shaped connected bend angles with different radiuses are positioned at the fold positions of wave crests and the wave troughs of the sinusoidal waveform unit. The shape of the connecting rod is an S-shaped sinusoid section connected with a straight line section. The surface of the bracket is covered by a medicament coating. The fold positioned at the wave crests and the wave troughs of the sinusoidal waveform unit adopt curve-shaped bend angles with unequal radiuses so that the blend pressure of the support bars is reduced, the rebound degree is reduced, and the bracket abscission incidence rate due to the insufficient retentivity is reduced. After being pressed and held, the bracket has a passing outer diameter of between 1 and 1.08mm. The possibility and the operability of the bracket are apparently improved.

The invention relates to the field of concrete, and provides recycled concrete aiming at the problem of large porosity of recycled aggregate. The recycled concrete is prepared from the following components in parts by mass: 5-6 parts of water, 13-15 parts of portland cement, 3-5 parts of awater reducing agent, 65-80 parts of recycled coarse aggregate, 35-40 parts of fine aggregate, 3-5 parts of hollow glass microbeads, 5-8 parts of an acrylic emulsion, and 1-3 parts of micro-silicon powder. By the synergistic cooperation of the hollow glass microbeads, the micro-silicon powder and the acrylic emulsion, the pores in the recycled aggregate filled with the hollow glass microbeads and the micro-silicon powder is facilitated, so that the impermeability of the recycled concrete is enhanced, and the enhancement of the compressive strength of the recycled concrete is facilitated while the reduction of the water absorption rate of the recycled concrete is facilitated.

The invention discloses an anionic anti-freezing emulsified asphalt and a preparation method thereof. A formula of the emulsified asphalt comprises asphalt, an anionic surfactant, a zwitterionic surfactant, alcohol, cellulose and water. The preparation method comprises steps of: preparing cellulose, alcohol and the zwitterionic surfactant into a paste at room temperature; preparing the anionic surfactant into a liquid soap; and uniformly dispersing hot asphalt, the paste and liquid soap by a colloid mill to obtain the anti-freezing emulsified asphalt. The emulsified asphalt not only has good freezing resistance, good long-term storage performance and small sieve residual amount, but also avoids irritant odor caused by heated volatile alcohols in the preparation of soap liquid through single usage of alcohol and production process of emulsified asphalt.

The invention discloses detergent for a military electronic device and a preparation method of the detergent. The detergent is prepared from the following components in parts by weight: 6 to 10 partsof fatty alcohol-polyoxyethylene ether, 4 to 8 parts of sodium n-alkyl benzene sulfonate, 3 to 7 parts of polyoxyethylene octylphenol ether, 2 to 5 parts of N-methyl-pyrrolidone, 3 to 7 parts of sodium silicate, 0.1 to 0.5 part of benzotriazole, 0.5 to 1 part of silicone oil, 0.1 to 2 parts of pH adjusting agent and 60 to 80 parts of water, and the pH adjusting agent comprises quaternary ammoniumbase and triethanolamine. The detergent of the scheme has a good cleaning effect, and is free from residue, free from corrosion, applicable to various water and pollution-free to the environment.

The invention relates to a porcelain pot which comprises a pot main body and a composite ceramic layer arranged in the pot main body, wherein a plurality of convex hulls are arranged on the upper surface of the bottom of the composite ceramic layer at intervals, the material of the composite ceramic layer comprises the following components in parts by weight: 25 to 35 parts of zirconium oxide, 50 to 70 parts of aluminium oxide, 2 to 15 parts of cerium oxide, 5 to 10 parts of copper oxide, 4 to 12 parts of steel fiber, 1 to 5 parts of carboxymethylcellulose, 2 to 6 parts of zinc sulfate, 2 to 6 parts of zinc chloride, 2 to 6 parts of sodium silicate, 2 to 6 parts of sodium metaaluminate, 0.5 to 1.5 part of silicon carbide, 0.5 to 1.5 part of iron sesquioxide, and 20 to 30 parts of deionized water. The invention further relates to a preparation method of the porcelain pot. According to the pot provided by the invention, the steel fiber with a Ni-p alloy coating is added into the composite ceramic layer, and the Ni-p alloy coating is of hyperphosphate amorphous microstructure taking Ni3P as a matrix, and has a better dispersion strengthening effect. Therefore, the binding strength of the steel fiber and the ceramic material is enhanced, and the hardness of the composite ceramic layer is improved.

The invention discloses a cylinder sticking agent for a household paper machine and a preparation method of the cylinder sticking agent, and belongs to the technical field of cylinder sticking agents for papermaking. The preparation method comprises the steps of modifying chitosan; preparing a modified chitosan grafted organic silicon copolymer; preparing a polyamide polyamine polymer; enabling the modified chitosan grafted organosilicon copolymer to react with a polyamide polyamine polymer and epoxy chloropropane; and adjusting auxiliary parameters. According to the invention, chitosan has a vinyl double bond after being modified by maleic anhydride, free radical polymerization can be carried out on vinyl and organic silicon, so that the vinyl and the organic silicon are successfully combined together. In order to utilize the unique smoothness of siloxane and further introduce a hydrophilic group, the organic silicon is grafted through modification, so that the moisture retention performance of the product and the hardness of the film reach the better level, the product is better combined with fibers, and the hand feeling of finished paper is softer.

The invention discloses concrete containing modified fibers and a preparation method thereof, and relates to the technical field of concrete. A technical key point of the concrete is that the concretecontaining the modified fibers comprises the following raw materials according to a weight ratio: 450-500 kg/m<3> of cement, 140-160 kg/m<3> of water, 1200-1300 kg/m<3> of sand, 15-20 kg/m<3> of a water reducing agent, 75-85 kg/m<3> of coal ash, 110-130 kg/m<3> of mineral powder, 110-130 kg/m<3> of silica fume, and 0.6-1 kg/m<3> of modacrylic fibers, wherein the modacrylic fibers comprise polyacrylonitrile fibers and an anti-corrosion coating sprayed on the surface of the polyacrylonitrile fibers. The method is capable of improving alkali corrosion resistance of the polyacrylonitrile fibers,prolonging service life of the concrete, and improving breaking strength, anti-cracking ability, and compressive strength of the concrete.

In the present invention dextran is added into pure wooden pulp and the making paper is dried to certain degree, dextran is compounded with one or several nitrous compounds, and the mixture is added into the wet paper before drying. The insulating paper thus produced has excellent high-temperature aging performance, no pollution to transformer oil and no influence on the insulating performance of transformer oil.

The invention discloses an enteral nutritional food as well as a preparation method and application thereof. The enteral nutrition food comprises 10 to 40 parts of isolated albumin powder, 5 to 18 parts of freeze-dried fruit powder, 5 to 20 parts of enzymolysis oat flour, 5 to 15 parts of MCT powder, 5 to 18 parts of whole milk powder, 10 to 30 parts of maltodextrin, 5 to 18 parts of microwave puffed grains, 3 to 10 parts of coconut powder, 2 to 8 parts of Ceylon instant black tea powder, 3 to 15 parts of solid malt extract, 2 to 5 parts of low-methoxy pectin, 1 to 12 parts of fructo-oligosaccharide, 1 to 5 parts of L-glutamine, 0.6 to 4 parts of arginine, 3 to 20 parts of soybean oligopeptide, 0.71091 to 2.41419 parts of compound vitamin and 0.29103 to 0.52907 parts of compound minerals.After enrichment of the varieties of enteral nutritional foods, such as microwave puffed grains, enzymolysis oat flour, freeze-dried fruit powder, sugar-free coconut powder and inulin, on the one hand, the stomach discomfort of a patient caused by food source change in a short time is relieved, the satiety is enhanced, and the stomach function recovery is promoted; and on the other hand, the gastrointestinal compliance of the patient is improved, the digestive absorption function is enhanced, the nutritional status of the patient is improved, and the hospitalization time is shortened.

The invention belongs to the technical field of conductive fillers, and particularly relates to a preparation method of a copper-coated multilayer graphene composite material. The preparation method comprises the following steps: mixing DMF and distilled water to obtain a mixed solvent; adding expanded graphite into a mixed solvent, and stripping the expanded graphite into a multilayer graphene dispersion liquid through ultrasonic stirring and stripping; adding copper acetate and dilute nitric acid into the multilayer graphene dispersion liquid, putting into a water bath kettle, heating, taking out, and cooling to room temperature; cleaning with a centrifugal machine, and drying the cleaned sample in a drying box to obtain copper oxide/multilayer graphene powder; and putting the copper oxide/multi-layer graphene powder into a tubular furnace, heating in a N2 protective atmosphere, and cooling to room temperature to obtain copper-coated multilayer graphene conductive powder. The formedcomposite material is not easy to agglomerate, and can be easily combined with macromolecules and rubber as a filler to form a high-quality conductive filler, thereby further enhancing the conductivity and dispersity.