37results about How to "Easy to complex" patented technology

The invention belongs to the technical field of magnetic materials and in particular relates to a preparation method of nanosilver and sulfydryl jointly modified magnetic microspheres. The preparation method comprises the following steps of: 1) preparing Fe3O4 magnetic microspheres; 2) preparing SiO2 wrapped Fe3O4 magnetic microspheres; (3) preparing sulfydryl modified SiO2 wrapped Fe3O4 magnetic microspheres; and 4) preparing nanosilver and sulfydryl jointly modified SiO2 wrapped Fe3O4 magnetic microspheres. According to the method, nano Fe3O4 is wrapped by a silane coupling agent and the stability and the acid-base resistance are improved due to the safety and the stability of silica; and a functional sulfydryl group is introduced into the surface through chemical reaction, so that novel modified magnetic nanoparticles are obtained. Due to investment and development of biological technology industry, life science and diagnostic reagent industry, the development of biological magnetic bead products with the technological advantage and the cost performance advantage is greatly promoted.

The invention discloses a PVC stabilizing agent, which comprises 50 to 75 weight parts of organic weak-acidic rare-earth salt and 25 to 50 weight parts of zeolite reactor. The organic weak-acidic rare-earth salt is prepared by reacting 1 mole part of organic weak acid with 1 to 5 mole parts of natural rare-earth compound under an alkaline conduction, wherein the organic weak acid is one or more than two of phenylformic acid, oleic acid, stearic acid and stearic acid; and the rare-earth compound is one or more than two of the natural compounds of lanthanum, cerium, neodymium and europium. The zeolite reactor is that zeolites absorbing maleic anhydrides are arranged in a channel and a cage. The PVC stabilizing agent of the invention has the advantages of small dosage, self-lubrication, yellowing resistance, no pock and the like; and the PVC material prepared by the stabilizing agent of the invention has good thermal stability and plasticity.

The invention discloses a production technology of an anti-static fabric. An electric conduction wire and a polyester cotton yarn are double-twisted to obtain a conductive yarn, the conductive yarn iswoven at intervals to obtain an anti-static gray fabric, and through singeing, shape setting and dyeing, the dyed gray fabric is obtained; through anti-static after-finishing of an anti-static finishing solution, two-time soaking and two-time rolling, the anti-static gray fabric is obtained; finally, through antibacterial anti-mite finishing of an antibacterial anti-mite finishing agent, two-timesoaking and two-time rolling, the anti-static fabric is obtained. The prepared anti-static fabric has good anti-static performance, can achieve moisture absorption and air permeation, has antibacterial and anti-mite performance and is good in comfort and particularly suitable for being used as a fabric of outdoor sports wear and climbing wear. The point-to-point resistance of the anti-static fabric reaches 2.8*1,010 omega, the rate of resisting staphylococcus aureus reaches 89.7%, the rate of resisting escherichia coli reaches 86.8%, the rate of resisting candida albicans reaches 73.6%, the water absorption rate reaches 106%, and the amount of water vapor transmission reaches 8,125 g/m<2>.24 h.

The invention relates to a calcium-zinc stearate and adipic acid di-maltitol ester PVC stabilizer and a manufacturing method thereof, which belong to the field of heat stabilizers for polyvinyl chloride (PVC) processing. Through adding adipic acid di-maltitol ester to carry out compounding with zinc stearate, calcium stearate, beta-diketone, a lubricant and an auxiliary heat stabilizer, a high-performance calcium-zinc stearate and adipic acid di-maltitol ester PVC composite heat stabilizer is obtained. A novel heat stabilizer prepared by using the method disclosed by the invention has the characteristics of ideal initial color, good long-term heat stabilization effect, and capability of promoting the plasticizing, lowering the balance torque, and improving the processing performance. The heat stabilizer prepared by using the method disclosed by the invention has the advantages of high efficiency and environment friendliness.

The invention discloses a preparation method of a quick-drying type metal anti-corrosion coating. The preparation method of the quick-drying type metal anti-corrosion coating belongs to the technicalfield of coating preparation. Although the content of epoxidized soybean oil is less in the metal anti-corrosion coating, the activity of the epoxidized soybean oil is higher when reacting with maleicanhydride, so that the curing time of the metal anti-corrosion coating is shortened; a pre-mixed solution is used as a mixed monomer of an acrylic resin so as to be doped into dissolved epoxy resin,and a composite resin emulsion is obtained through grafting reaction; when the metal anti-corrosion coating is cured, hydrophobic substances in a micelle can be gathered and arrayed on a surface of apaint film, so that surface hydrophobicity of the metal anti-corrosion coating is improved; essential oil in an essential oil microcapsule has high volatility, can be slowly released from the microcapsule, and then is micro-emulsified in water of the metal anti-corrosion coating, so that drops of water become smaller, and water is convenient to volatize; the hydrophobicity of the essential oil isalso beneficial to water volatilization in the metal anti-corrosion coating, so that when the metal anti-corrosion coating is cured, the surface drying time is shorted, the aim of quick drying is achieved, and the application prospect is broad.

The invention relates to a perovskite solar cell taking polyaniline as a hole transmission layer. The perovskite solar cell comprises transparent conductive glass, a compact layer, a perovskite light absorption layer, the hole transmission layer and a metal back electrode. The perovskite solar cell is characterized in that co-doped poly(beta-aminoethoxy) aniline derivatives of halogen acids and transition metal halide is taken as the hole transmission layer, chemical composition of the hole transmission layer is PFMX4, PF stands for the poly(beta-aminoethoxy) aniline derivatives, M stands for Fe, Co, Ni, Cu and Mn transition metal ions or mixtures thereof, and X stands for F, Cl, Br and I. The perovskite solar cell is advantaged in that the hole transmission layer has conductivity, resistance of the perovskite solar cell can be reduced, and photoelectric conversion efficiency of the perovskite solar cell can be improved.

The invention discloses a preparation method and application of super-hydrophobic foam iron. The preparation method comprises the following steps: firstly, electro-depositing a high-entropy alloy on super-hydrophilic foam iron, then carrying out super-hydrophobic surface treatment to obtain super-hydrophobic foam iron, and then applying the super-hydrophobic foam iron to a designed oil-water separation device to carry out oil-water separation. The method is simple in preparation process, low in production cost, green, efficient and suitable for large-scale industrial production. The prepared super-hydrophobic foam iron has the characteristics of self-cleaning, pollution prevention, long-term corrosion resistance, high oil-water separation efficiency and the like, the static contact angle of the super-hydrophobic foam iron is larger than 150 degrees, and the rolling angle of the super-hydrophobic foam iron is smaller than 10 degrees. The designed oil-water separation device can realizecontinuous oil-water separation and is suitable for oil-water separation of light oil and heavy oil, and has high separation efficiency in the separation process.

The invention discloses a radioactively contaminated soil conditioner and a preparation method thereof, and belongs to the technical field of soil remediation. According to the method, montmorilloniteis reacted with an intercalator after being subjected to sodium treatment, and an obtained intercalated montmorillonite solution is reacted with sodium humate to prepare the soil conditioner. The radioactively contaminated soil conditioner provided by the invention has good adsorption effects on radioactive elements and heavy metal ions, and thus can be widely applied to remediation of radioactively contaminated soil and heavy metal contaminated soil; moreover, the selected raw materials are simple and easy to obtain, and the preparation process is easy to operate, so that industrialized production of the conditioner can be achieved.

The invention provides an ultraviolet-cured white butyl coating as well as a preparation method and application thereof, and belongs to the field of coatings. The resin raw material used in the invention is urethane acrylate resin which has certain toughness and contains a phosphate structure; the polyurethane acrylate resin, titanium dioxide, a photosensitizer, a dispersing agent, a leveling agent and an antifoaming agent are synthesized into the ultraviolet-cured white butyl coating. The coating improves the adhesive force to tinplate in the true sense, and meanwhile, the siloxane resin component in the structure improves the temperature resistance, water resistance and other properties.

The invention provides a method for separating and purifying a beta-end-group thio-glycoside compound. The method comprises the following steps of: dissolving a crude thio-glycoside compound containing various isomers into a first organic solvent, adding an aqueous solution containing a divalent copper salt, stirring at the temperature between minus 20 DEG C and 0 DEG C, and filtering to obtain an organic phase; drying the organic phase by distilling, dissolving the dried organic phase into a second organic solvent, and shaking ultrasonically to obtain the beta-end-group thio-glycoside compound. Because the steric hindrance of the alpha-end-group isomer is low, the alpha-end-group isomer is easy to be subjected to complexation with a cupric ion to generate a flocculent precipitate in a low-temperature aqueous phase, and because the flocculent precipitate can be removed easily by filtering, the beta-end-group isomer can be left in the organic phase. After the beta-end-group isomer is shaken ultrasonically, the beta-end-group isomer can crystallize. The method provided by the invention is simple and convenient. In addition, the experimental result shows that the purity of the beta-end-group thio-glycoside compound obtained by adopting the method can be more than 95%, and the yield can be more than 85%.

The invention provides a barite pollution blockage remover composition of an oil-gas well of an oilfield. The composition is prepared from the following raw materials in parts by weight: 20-25 parts of acetone semicarbazon, 16-20 parts of 5-carboxylic acid-3-amino-1,2,4-triazole, 13-16 parts of L-sodium aspartate, 3-5 parts of crown ether (18-crown-6), 7-10 parts of phenyl diethyl malonate, 11-15 parts of dimethylethanolamine, 33-37 parts of ethosuximide, 9-13 parts of iminodiacetic acid, 30-35 parts of ammonia water (40 wt%) and 70-80 parts of water. The blockage remover composition is used for removing blockage of a stratum with barite pollution in drilling mud; the blockage removal speed is high, and the blockage removal of barite pollution in the oil-gas well can be completed within 4-12 h, and therefore, the yield of the oil-gas well of the oilfield is recovered and improved; the descaling rate is 98% or higher, and the blockage removal of barite pollution in the oil-gas well of the oilfield is completed by a one-step method; the safe and non-corrosive blockage removal is achieved; no corrosion, no dead angle, no precipitation or no secondary well clogging are caused; 90% or more of barite mud pollution can be effectively removed.

The invention discloses application of sulfur/phosphorus hybrid polyether modified polycarboxylic acid in the fields of paint, printing ink, ceramics, adhesives and solar cells, and particularly relates to application of the sulfur/phosphorus hybrid polyether modified polycarboxylic acid in dispersing an organic pigment in water or an aqueous solution. The sulfur/phosphorus hybrid polyether modified polycarboxylic acid is prepared in the steps that by mass, 10-30 parts of acrylic acid, 1-10 parts of polyether and 20-50 parts of water are evenly mixed and heated to 50-100 DEG C, then 0.1-10 parts by mass of an initiator solution is added, a heat preservation reaction is carried out for 2-6 hours, and 6-20 parts by mass of a chain transfer agent solution is added to stop the reaction. The preparation method is wide in raw material source, green in preparation, simple and convenient to use and environmentally friendly. The problem that the organic pigment phthalocyanine copper is difficult to disperse in water is solved, and the application range of phthalocyanine copper is widened. A phthalocyanine copper water dispersion solution can be applied to the fields of paint, printing ink, ceramics, adhesives and solar cells.

The invention relates to the field of water-soluble fertilizers, and particularly discloses an organic water-soluble fertilizer and a preparation method thereof. The water-soluble fertilizer comprises the following components in parts by weight: 70-90 parts of concentrated honey fermentation liquor, 8-15 parts of a water-soluble potassium fertilizer, 3-8 parts of a water-soluble nitrogen fertilizer and 0.5-4 parts of a water-soluble phosphate fertilizer. The preparation method comprises the following steps: weighing the concentrated molasses fermentation liquor in parts by weight, mixing the water-soluble nitrogen fertilizer, the water-soluble potassium fertilizer and the water-soluble phosphate fertilizer with the concentrated molasses fermentation liquor at normal temperature, and uniformly stirring to obtain the water-soluble fertilizer. The water-soluble fertilizer can efficiently promote the growth of crops and has a remarkable yield increasing effect; the preparation method is easy to operate, raw materials are easy to obtain, the loss rate of the raw materials in the preparation process is low, and large-scale production is facilitated.

The invention provides high-dispersity silver powder for preparing front silver paste of a solar cell and a preparation method of the high-dispersity silver powder. The method comprises the steps of preparing a silver salt solution, an organic ligand solution and a reducing agent solution respectively, wherein the reducing agent solution contains ferrous sulfate; adding an acid solution into the silver salt solution, and regulating and controlling the pH value of the silver salt solution to be 5-7; and synchronously dropwise adding the organic ligand solution and the reducing agent solution into the silver salt solution according to the molar ratio of ferrous sulfate to silver salt being (1-2):1, after dropwise adding is completed, carrying out a stirring reaction for preset time, and then carrying out separation, washing and drying to obtain the high-dispersity silver powder for preparing the front silver paste of the solar cell. According to the high-dispersity silver powder for preparing the front silver paste of the solar cell and the preparation method of the high-dispersity silver powder, ferrous sulfate is adopted as a reducing agent, a small amount of organic ligands capable of being chelated with ferrous ions are added in the silver salt reducing process, the silver salt reducing rate can be effectively adjusted by regulating and controlling the adding amount and the adding speed of the organic ligands, the obtained ferrous ion chelate can further wrap the surface of the silver powder, and therefore the high-dispersity silver powder is obtained.

The invention provides tedizolid phosphate, a preparation method of an intermediate of tedizolid phosphate and an injection, and belongs to the technical field of organic synthesis.The preparation method comprises the steps that 1, 2-methyl-5-(5-bromopyridine-2-yl) tetrazole, bis (pinacolato) diboron, a Pd catalyst and KOAc are mixed and heated for a reaction, water, (5R)-3-(4-bromo-3-fluorophenyl)-5-hydroxymethyl oxazolidine-2-ketone and K2CO3 are added for a reaction, a reaction is conducted, and a reaction solution is obtained; cooling, crystallizing, filtering, washing and drying to obtain an intermediate T1; and (2) mixing the intermediate T1, triethylamine and phosphorus oxychloride for reaction, performing cold water quenching reaction, filtering, washing, drying and refining to obtain tedizolid phosphate. The preparation method disclosed by the invention is mild in reaction condition, high in catalytic efficiency, safe to operate, environment-friendly, high in yield, high in purity of the prepared product and low in production cost.

The invention discloses a treatment method of a denitration material in an H acid production process. The method comprises the following steps: sequentially carrying out alkali neutralization, extraction and back extraction on a denitration material. According to the treatment method of the denitration material, the extraction efficiency of the denitration material can be effectively improved, thedenitration material is rapidly layered during extraction, the loss of an extracting agent is small, the extracting agent is easy to regenerate, meanwhile, the extraction condition is mild, the requirements of extraction equipment can be effectively reduced, and industrial production is better facilitated.