52results about How to "Guaranteed Affinity" patented technology

The invention discloses a stone aggregate wrapped by a microfine fibre polymer mortar thin layer and a preparation method thereof; the stone aggregate is formed by stone aggregate inner cores, an adhesive inner wrapping layer, a polymer cement mortar outer wrapping layer and an adhesive microfine fibre hair layer, wherein the adhesive inner wrapping layer and the stone aggregate are adhered firmly; microfine fibre filaments are anchored and rooted on the adhesive inner wrapping layer; and the polymer cement mortar outer wrapping layer and the adhesive inner wrapping layer are soluble mutually and can effectively form a whole body. Active powder in the polymer cement mortar outer wrapping layer contains silica fume, zeolite powder, finely-ground mineral slag, pulverized coal ash and the like, and can generate volcanic ash reaction with Ca(OH)2 crystal at the interface position of the set cement so as to generate gelled materials, and further carry out improved treatment on the weakest interfaces of set cement and the stone aggregate in concrete. The modified stone aggregate of the invention has good affinity with the set cement, and has higher binding power with the set cement.

The invention belongs to the field of natural high polymer materials and particularly relates to an acetylated cellulose nanocrystalline composite modified biomass-based polyester material and a preparation method thereof. The acetylated cellulose nanocrystalline composite modified biomass-based polyester material is prepared from acetylated cellulose nanocrystalline and poly(3-hydroxybutyrate-co-4-hydroxybutyrate) in the weight ratio being (3-30):100 through compositing. The preparation method comprises steps as follows: poly(3-hydroxybutyrate-co-4-hydroxybutyrate) and an acetylated cellulose nanocrystalline solution are mixed and put into a polytetrafluoroethylene mold for film casting, a solvent is evaporated at the room temperature, and the acetylated cellulose nanocrystalline composite modified biomass-based polyester material is obtained after vacuum drying. The tensile strength and the Young modulus of poly(3-hydroxybutyrate-co-4-hydroxybutyrate) are remarkably improved after composite modification by acetylated cellulose nanocrystalline, the strength and the rigidity of the material are improved, and the application range of the material is effectively broadened.

The invention provides mild moisture-retention cleansing water.The mild moisture-retention cleansing water comprises, by weight, 5-25% of surfactant, 5-25% of humectants, 0.02-0.16% of citric acid, 0.01-0.1% of sodium citrate, 0.2-1% of phenoxyethanol, 2-8% of Indian bdellium, 5-10% of bitter melon juice, 3-6% of cucumber juice, 1-4% of lavender essence, 2-5% of mint extract, 1-4% of an aloe extracting solution, 1-3% of chamomile extract and the balance deionized water.The cleansing water is rich in multiple types of functional constituents, but all the constituents do not act separately but work as a whole body and are matched with one another to be used; by optimizing the component content, the prepared cleansing water can have excellent effects such as cosmetic removal, moisture retention, mildness, non-irritation, skin care and moistening; meanwhile, the invention further provides a preparation method of the cleansing water.

The invention discloses a heparin affinity column as well as the preparation method and the application thereof. The heparin affinity column is prepared through the following method: agarose gel 6FF is taken as a solid phase carrier which is firstly activated and then is aminated and coupled with amidocyanogen after an epoxy group is coupled, the aminated agarose gel 6FF and the heparin form intermediate aldimine in methanol, and the intermediate product of aldimine is further subjected to reductive amination for forming stable chemical bonds, thereby acquiring the heparin-agarose gel 6FF. The affinity column preparing preparation with high efficiency is simple and short. Through adopting the combination of the rear aldehyde of the heparin and the amidocyanogen of aminated sepharose, the activity of the heparin is not influenced, thereby ensuring the affinity column to have higher affinity; the heparin coupling is stable, and the heparin can be repeatedly used; the reagent adopted by the method has low cost and no environmental pollution, thereby laying a foundation for sweepingly isolating and purifying materials with specific binding capacity to the heparin in common laboratories, and promoting the research on domestic relative fields.

The invention provides a preparation method and application of a waterborne polyurethane film based on phthalic anhydride polyester polyalcohol. Under the conditions of mechanical stirring and reflux condensation, phthalic anhydride polyester polyalcohol, aliphatic diisocyanate, small-molecule dihydric alcohol with side chains containing carboxyl and small-molecule polyalcohol are gradually polymerized, then triethylamine is added, quaternary ammonium salt is formed through side chain carboxyl, a polyurethane prepolymer is obtained, the prepolymer is dispersed in deionized water under rapid stirring, chain extender diamine is added, and polyurethane emulsion is obtained; the polyurethane emulsion flows to form a film on the surface of a glass plate, the film is naturally aired and dried at the temperature of 120 DEG C to constant weight, and the waterborne polyurethane film based on phthalic anhydride polyester polyalcohol is obtained. The film can be used for separating benzene/cyclohexane through pervaporation.

The invention provides a manufacturing method of an antibacterial air-permeable foaming insole material.The method comprises the following steps that 1, watermelon vines are sheared into watermelon vine strips, and watermelon vine crude fibers are prepared after cooking and flash explosion are conducted; 2, the watermelon vine crude fibers are treated with an alkaline hydrogen peroxide, and alkalized watermelon vine crude fibers are prepared; 3, the alkalized watermelon vine crude fibers are subjected to emulsifying and shearing through ionic liquid, and watermelon vine fibers are regenerated; 4, mixing is conducted on EVA and other auxiliaries through an internal mixer, granulation is conducted, mold pressing foaming is conducted, and an EVA composition is obtained; 5, the EVA composition is composited with the watermelon vine fibers through preimpregnation, laminated molding is achieved through a plate vulcanizing machine, and the antibacterial air-permeable foaming insole material is obtained.The manufactured insole material has the better antibacterial property and air-permeable property.

The invention provides a method for preparing a latex immunonephelometric assay kit with more specific performance, a more intact antibody stereostructure, higher affinity and fewer interference factors by orientedly immobilizing a single-chain antibody on the surface of a polystyrene microsphere through fusion expression of scFV and polystyrene binding peptide on the basis of the characteristic that the polystyrene binding peptide can specifically adhere on the surface of the polystyrene microsphere.

The invention belongs to the field of manual metalloenzyme and discloses high-efficiency decolorizing peroxidase and a preparation method and application thereof. According to the decolorizing peroxidase disclosed by the invention, myohemoglobin with an oxygen carrying function is utilized as protein molecules to design a framework, tyrosine is introduced to a 43 site near the heme active center of the myohemoglobin, and tryptophan is introduced to a 138 site; meanwhile, tryptophan is introduced to an 88 site at the periphery of the heme active center to obtain three-point mutant protein, andan amino acid sequence of the three-point mutant protein is shown as SEQ ID NO.1. According to the decolorizing peroxidase disclosed by the invention, a catalytic conversion number is improved, and dependence on hydrogen peroxide is reduced; the preparation method of the decolorizing peroxidase has the advantages of simpleness in operation and suitability for large-scale industrial production. Experiments show that the decolorizing peroxidase disclosed by the invention can degrade dye molecules under low-concentration hydrogen peroxide and within several seconds to achieve a decolorizing effect, a catalytic efficiency is increased by 130% compared with that of two-point mutant protein, and the decolorizing peroxidase can be widely applied to pollution treatment of industrial dye wastewater.

The invention provides cleansing water capable of repairing the damaged sebum membrane. The cleansing water comprises basic ingredients and functional ingredients, and the balance of deionized water, wherein the basic ingredients comprise the following components in percentage by weight: 5-25% of a surfactant, 5-25% of a humectant, 0.02-0.16% of citric acid, 0.01-0.1% of sodium citrate, and 0.2-1% of phenoxyethanol. The functional ingredients adopt any one of the following two compositions: composition I: 2-6% of N-cetylhydroxyproline palmitamide, 0.2-2% of tocopheryl acetate, 0.2-2% of bisabolol, and 0.2-1% of plant essential oil; and composition II: 10-20% of shea butter and/or squalene and/or ceramide. The cleansing water contains various functional components, and the functional components do not take effects independently but act as a whole, and are matched for use; the contents of the components are optimized, so that the prepared cleansing water has the efficacies of repairing the damaged sebum membrane, removing all traces of make-up without residue, being free of stimulation and oily feel, and being capable of effectively preventing the skin aging, preserving the moisture and tendering the skin, and enabling the pores to be smooth.

The invention relates to the field of food additives and provides a lotus seed paste mooncake modifier. The lotus seed paste mooncake modifier comprises the following components in percentage by weight: 35-55% of modified starch, 18-32% of sodium pyrophosphate and 25-35% of sodium carbonate. The modifier is added and utilized before the lotus seed paste mooncake materials are fried to ensure thatthe phenomenon of founding and oil penetration does not occur easily in the frying process; after being subject to high temperature twice through frying and baking of a mooncake, the lotus seed pastecan keep affinity of sugar, oil, water and protein in the state of normal temperature so that the lotus seed paste mooncake has the effects of pleasant, smooth and fine mouth feel without sticking teeth, moisturizing, antiaging, long shelf life, and the like.

The invention discloses a porous bracket material used for the biomedicine and a preparation method of the porous bracket material, belonging to the field of biomedical material science engineering. The porous bracket material aims to improve the hydrophily of PHB (Polyhydroxybutyrate), and controllability on the aperture and the distribution of the PHB can be enhanced. The porous bracket material is prepared by taking the PHB and polyethylene glycol the base material and combining a template method and a freeze drying method. The porosity of the bracket made of the porous bracket material is determined by the concentration of an initial solution, and pre-freezing temperature also affects the average porosity and the porosity distribution. The Polyhydroxybutyrate/polyethylene glycol porous bracket material has the advantages of good biocompatibility, adjustable hydrophilic/lyophobic balance and controllable porosity and distribution, can meet requirements of different types of cells, and simultaneously guarantees the mechanical strength of the porous material and the affinity of a biomass (cell). The bracket material is very suitable for the apposition growth of a cartilaginous tissue cell.

The invention discloses a high-tower compound fertilizer containing lignin and calcium lignosulphonate, wherein the high-tower compound fertilizer comprises ammonium nitrate phosphate, Mannheim potassium sulfate, instant lignin and calcium lignosulphonate, diammonium phosphate, monoammonium phosphate and anhydrous magnesium sulfate; the instant lignin and calcium lignosulphonate are small molecules, and have the molecular weight of 20 kDa-200 kDa; a small amount of micromolecular instant lignin and calcium lignosulphonate can be organically combined with high-concentration nutrient elements, the slow release function and affinity are not affected by high temperature, and the obtained compound fertilizer is sufficient in nutrient and rich in high-concentration quick-acting nutrient elements, has the advantages of high activity, full water solubility, quick acting, excellent slow release performance and the like, and is efficient and convenient. The invention further discloses a preparation method of the high-tower compound fertilizer containing lignin and calcium lignosulphonate; the preparation process and parameters of the high-tower compound fertilizer are optimized, and the high-tower compound fertilizer is good in stability, easy to pelletize and form and high in activity of effective components.

The invention relates to a novel coronavirus detection kit. The novel coronavirus detection kit comprises an antigen component and a luminous component, the antigen component contains a novel coronavirus protein-magnetic bead compound, and the novel coronavirus protein-magnetic bead compound comprises an S1 protein-magnetic bead compound, an S2 protein-magnetic bead compound, an E protein-magnetic bead compound, an M protein-magnetic bead compound and an N protein-magnetic bead compound. The luminous component contains an anti-human IgG antibody, and a luminous marker is marked on the anti-human IgG antibody. The novel coronavirus detection kit disclosed by the invention is based on a two-step indirect immunoassay principle of direct chemiluminescence, the concentration of a novel coronavirus IgG antibody in a to-be-detected sample can be quickly judged by utilizing a corresponding chemiluminescence tester, and by coating all novel coronavirus antigens which possibly generate antibodies to the surfaces of magnetic beads, the missing detection caused by different antibodies generated in bodies of individual patients is avoided to the greatest extent.

The invention discloses an anti-crease finishing agent for a shirt fabric and an application of the anti-crease finishing agent. The anti-crease finishing agent comprises the following components in parts by weight: 1-5 parts of nano titanium dioxide, 12-18 parts of malic acid, 20-30 parts of isopropyl alcohol, 8-14 parts of sodium sulfate, 20-30 parts of plant extract, 2-8 parts of silk protein,2-4 parts of sorbitan fatty acid ester, 18-27 parts of amino silicone oil, 1-3 parts of organosilicone emulsion, 3-8 parts of coconut fatty acid diethanol amide, 35-40 parts of modified polyurethane,2-8 parts of sodium carboxymethyl cellulose oxide, and 30-48 parts of deionized water. Compared with the prior art, the anti-crease effect of the shirt fabric is improved by using the silk protein andthe modified polyurethane, and the lubricity of the silk protein improves the affinity of the fabric and the skin. In addition, the plant extract is obtained by mixing of multiple plants, extractionand concentration, thereby reducing the addition of chemicals while ensuring the anti-crease effect of the finishing agent.

The invention discloses a busway for pouring and a production method thereof, and relates to circuit conductors. The problem that in the prior art, a busway suitable for pouring is lacked is solved. The busway is characterized in that the busway for pouring comprises at least four bus copper conductors, an epoxy resin body and a concrete shell, the bus copper conductors penetrate through the epoxyresin body, and are sleeved with a metal casing, and the concrete shell wraps the metal casing. The busway for pouring has high insulativity, osmosis resistance, backlog-resistant performance and affinity with concrete, and then the technical effect of being suitable for pouring and laying is achieved.

The invention provides a root-knot nematode resistant pumpkin stock and a breeding method and an application thereof. The breeding method thereof adopts an inoculating screening method for largely collecting farm varieties and performing high-throughput, a highly-resistance pumpkin material is rapidly detected, at the same time, technologies of continuous selfing and single-pumpkin breed conservation are adopted in breeding, stable inheritance of resistance can be tested within a shorter time, and the method is high-efficient in screening. At the same time, the effect, to root-knot nematode, of cucumber seedlings grafted by the screened pumpkin stock can reach 73.5% in pot culture and field preventing experiments, and is better than control efficiency of a chemical pesticide, so high efficiency of preventing application is reflected.

The invention relates to a preparation method of a medical adhesive with high antibacterial performance. The method is characterized by comprising the following steps: step one, adding sodium alginate, lignin, tannic acid and a stabilizer into sterile water according to parts by weight, heating to 100 DEG C, stirring and dissolving for 150 minutes, and cooling to room temperature to obtain an aqueous solution A; step two, adding poly(alpha-isobutylcyanoacrylate-alpha-octylcyanoacrylate), polyurethane and polyisoprene into seabuckthorn seed oil according to parts by weight, heating to 80 DEG C,stirring for 75 minutes, and cooling to room temperature to obtain a seabuckthorn seed oil solution B; step three, uniformly mixing the aqueous solution A with the seabuckthorn seed oil solution B, adding highly-effective antimicrobial components and a formaldehyde inhibitor according to parts by weight, and stirring for 4 hours; and step four, filtering, sterilizing, split charging, sealing andpackaging the product obtained in the step three to obtain the medical adhesive with high antibacterial performance.

The invention relates to a high antimicrobial property medical binder. The high antimicrobial property medical binder is prepared from the following components in parts by weight: 45-55 parts of poly(alpha-isobutylcyanoacrylate-alpha-octyl cyanoacrylate), 24-36 parts of efficient antimicrobial components, 2-5 parts of polyurethane, 20-25 parts of polyisoprene, 2-4 parts of sodium alginate, 3-6 parts of xylogen, 7-10 parts of gallotannic acid, 1 part of a stabilizer, 1 part of a formaldehyde inhibitor, 150-200 parts of seabuckthorn seed oil and 180 parts of sterile water. Three antimicrobial components are specially added to the medical binder, so the medical binder is high in antibacterial rate, high in binding strength, good in biocompatibility, and high in overall curative ratio, and complies with the application requirements to the medical binder clinically.

The invention provides a low-smoke halogen-free fireproof cable. The low-smoke halogen-free fireproof cable sequentially comprises a low-smoke halogen-free flame-retardant polyolefin layer, a non-woven fabric belt, a glass fiber belt, an insulating filling layer and a plurality of cable core units from outside to inside. The preparation method of the low-smoke halogen-free flame-retardant polyolefin layer comprises the following steps: stirring and mixing the BASF flame retardant, the 1, 3, 5-triazine, the pentaerythritol and the hindered phenol antioxidant in parts by weight; adding plant cellulose and magnetite nanoparticles into the obtained mixture, and fully stirring again; and adding polyolefin and a charring agent in parts by weight into the obtained mixture, and stirring and extruding by using a double-screw extruder to obtain the low-smoke halogen-free flame-retardant polyolefin layer. The low-smoke halogen-free fireproof cable has good flame retardant property, corrosion resistance and mechanical property, and reduces the release of toxic and harmful gases; and the plant cellulose and the magnetite nanoparticles are added to prepare the polyolefin layer so that the mechanical property, the antibacterial activity, the elasticity and the compression resistance of the cable can be improved.