104results about How to "The preparation method is practical" patented technology

The invention discloses addition type organic silicon rubber tackifier capable of improving adhesion between addition type organic silicon rubber and base materials after the addition type organic silicon rubber is cured at moderate temperature, and a preparation method and application of the addition type organic silicon rubber tackifier. The tackifier is prepared through vinyl hydroxyl silicone oil, glycidyl ether alkoxy silane and titanate catalysts. The preparation method includes the following steps that the vinyl hydroxyl silicone oil and glycidyl ether alkoxy silane are mixed evenly at room temperature, added with phthalic ester in a stirring state and heated to 60-100 DEG C, and reacts for 1-6 hours, and the reaction mixture is obtained; the mixture is decompressed at 60-80 DEG C to remove low-boiling-point substances, keeps in a vacuum state, and is cooled to the room temperature, and the tackifier is obtained; the addition type organic silicon rubber tackifier is matched with auxiliaries to be applied to addition type silicon rubber. The tackifier is added into addition type organic silicon rubber so that the silicon rubber can have good adhesion with base materials especially polycarbonate after the silicon rubber is cured at moderate temperature.

The invention discloses a method for preparing organic and inorganic composite super-hydrophobic coatings. The method comprises the following steps of: preparing modified silicon dioxide nano particles, preparing coating sol and coating the surface of a substrate material. The method is simple in process, readily available in raw materials and low in cost and is suitable for large-scale production and application; and the prepared coatings have high super-hydrophobic property, self-cleaning performance and freezing resistance.

The invention discloses a heat superconducting composite phase change energy storage material. The heat superconducting composite phase change energy storage material aims at improving the content and the thermal conductivity of phase change materials in a solid-liquid composite phase change energy storage material. The heat superconducting composite phase change energy storage material comprises phase change energy storage materials which are uniformly distributed in apertures of porous foamed aluminum and a heat-conducting and sealing material layer is coated on outer surfaces of the apertures. Compared with the prior art, the heat superconducting composite phase change energy storage material utilizes an inorganic metal porous continuous material foamed-aluminum as a matrix, adopts graphite powder added into a paraffin melt liquid and utilizes a graphite coating added with an adhesive for aperture sealing and thus through the above structure, the heat superconducting composite phase change energy storage material which is a shaped solid-liquid phase change energy storage material has a high energy storage capacity due to large and more apertures of foamed aluminum and has high thermal conductivity due to graphite powder added into a paraffin material and a graphite aperture-sealing layer.

The invention discloses a composite reaction medium for removing nitrogen and phosphorus from underground water permeable reactive barriers and a method for preparing the composite reaction medium. The composite reaction medium comprises, by weight, 1.0-3.0 parts of zeolite, 0.7-1.3 parts of bentonite, 0.5-1.5 parts of attapulgite and 1.0-6.0 parts of coal cinder. The zeolite, the bentonite, the attapulgite and the coal cinder are sintered to obtain the composite reaction medium. The composite reaction medium and the method have the advantages that the nitrogen and the phosphorus can be synchronously, efficiently and quickly removed by the composite reaction medium, the composite reaction medium can be used as a biological carrier, accordingly, shortcomings of instability of biological phosphorus removal, large quantity of mud due to chemical phosphorus removal and the like can be overcome, and detour flow of water at the fronts of the barriers and the like can be prevented.

The invention relates to a high-density polyethylene/paraffin composite phase-change material and belongs to the technical field of materials. The high-density polyethylene/paraffin composite phase-change material is prepared through mixing the raw materials in percentage by weight: 100-200 parts of high-density polyethylene, composite paraffin phase-change material, of which the percentage is 20-60% that of high-density polyethylene, and inorganic filler, of which the percentage is 5-50% that of high-density polyethylene, wherein the composite paraffin phase-change material is uniformly distributed in the high-density polyethylene matrix. According to the high-density polyethylene/paraffin composite phase-change material and the preparation method thereof, a macromolecular material is taken as a carrier, and the adsorptive inorganic filler is added, so that the problem of leakage is solved in a cooperated manner on the premise of guaranteeing the mechanical properties of the material. High-density polyethylene is a good latent-heat energy-storage matrix material and has relatively good compatibility with paraffin, but high-density polyethylene has poor heat-conducting property, so that the heat release of the high-density polyethylene/paraffin composite phase-change material is limited.

The invention provides a nano silicon dioxide with grafting of polyisoprene on the surface, a preparation method and an application thereof. The preparation method comprises the steps of dispersing the nano silicon dioxide in a solvent, then adding an RAFT (Reversible Addition Fragmentation chain Transfer) reagent with carboxyl groups, a dewatering agent and a catalyst for reaction to obtain nano silicon dioxide capable of initiating RAFT polymerization of isoprene monomers; then mixing with the isoprene monomers for reaction to obtain the nano silicon dioxide with grafting of the polyisoprene on the surface. The nano silicon dioxide particles can improve the blending effect of different rubbers or the rubbers and plastic molecules in a more-effective manner by utilizing the compatibility of the grafted polyisoprene and a base material so as to provide a better basis for exerting the synergistic property of different components in a more-effective manner.

The invention discloses a self-flow type large-area batching mix for a revolving furnace and methods for preparing and using the self-flow type large-area batching mix. The batching mix consists of the following components in part by weight: 50 to 70 parts of aggregate, 20 to 30 parts of fine powder, 10 to 20 parts of micro powder, 1 to 10 parts of binding agent, 2 to 20 parts of burning promoter, 0.1 to 0.5 part of detonation inhibitor and 0.1 to 4 parts of thickening agent, and the sum of the parts of the aggregate, fine powder, micro powder and binding agent is 100; the aggregate and the fine powder are one or both of the medium-grade magnesia with the MgO content of more than or equal to 95 percent and the first-grade magnesia with the MgO content of more than or equal to 92 percent, and the grain sizes are more than 0.088mm and less than or equal to 5mm and less than or equal to 0.088mm respectively; and the micro powder is the mixture of SiO2 micro powder and active alpha-Al2O3 micro powder. The preparation method comprises the following steps of adding the aggregate, fine powder, micro powder and binding agent in a forced mixer, stirring for 5 to 8 minutes, adding the burning promoter, detonation inhibitor and thickening agent, and stirring the mixture for 3 to 5 minutes. The using method comprises the following steps of putting the batching mix in a mixer, performing dry mixing on the batching mix for 2 to 3 minutes, adding water in an amount which is 8 to 15 percent of the weight of the batching mix, uniformly stirring the mixture for 4 to 5 minutes, discharging, and adding the batching mix into the revolving furnace within one hour. The batching mix is low in cost, high in sintering property, long in service life and long in standing time.

The invention discloses a synchronous preparation method of an effective ingredient of licorice, wherein the method comprises the following steps that: 1) licorice is soaked with an aqueous ethanol solution and then is subjected to immersing boiling extraction; 2) the extract solution is filtered, and the effluent is collected through two sections of macroporous resin columns connected in series and having different polarities, wherein the macroporous resin columns connected in series are that a nonpolar macroporous resin column is connected in series with a moderately polar or polar macroporous resin column, or a polar macroporous resin column is connected in series with a nonpolar macroporous resin column; 3) the resin column is rinsed with water to remove impurity, the nonpolar macroporous resin column is eluted with a 70-90% aqueous ethanol solution, and the moderately polar or polar macroporous resin column is eluted twice sequentially through a 30-40% aqueous ethanol solution and a 50-70% aqueous ethanol solution; and 4) the effluent and various eluents are respectively dried to obtain licorice total polysaccharides, licorice isopentenyl flavonoids, licorice total flavonoids excluding isopentenyl, and licorice total saponins. By the invention, substances with different polarities in licorice are separated, separation efficiency is improved, and waste of solvent is avoided.

The invention relates to a modified chitosan amphoteric polymer retanning agent and a preparation method thereof. In the technical scheme, the preparation method comprises the following steps of: immobilizing horseradish peroxidase (HRP) on activated silica gel by taking gamma-(2,3-epoxy propoxy)propyl trimethoxy silane as a coupling agent, and performing graft copolymerization reaction of hydroxypropyl acrylate, methacrylic acid and degraded chitosan under the initiation of an immobilized HRP/H2O2/diacetone ternary system. The enzyme in the retanning agent can be recycled, so the cost is reduced, and the efficiency is improved; the modified chitosan amphoteric polymer retanning agent is non-toxic and non-irritant, has the high water solubility, and is suitable for the retanning of various kinds of leather, the viscosity is 18.5 mPa S (25 DEG C), the solid content is between 20 and 25 percent, and the pH value is between 6.5 and 7.0; the retanned products are high, plump and soft in fillibility; the thickening rate is 19 percent when the retanning agent is applied to sheep skin retanning leather, and the contraction temperature of the leather is 108 DEG C; and the application leather is high in a dyeing effect, the dyed leather is pure and bright in color, and the absorption rate of dyes is over 94 percent.

The invention relates to passion fruit chili sauce and a preparation method for the passion fruit chili sauce. The preparation method for the passion fruit chili sauce is characterized in that the passion fruit chili sauce comprises the following raw materials in parts by weight: 10,000-12,000 parts of chili sauce, 800-1,000 parts of old ginger, 1,000-1,100 parts of peanuts, 900-1,000 parts of white sesame, 500-600 parts of fermented soybean curd sauce, 900-1,000 parts of thick broad-bean sauce, 10-30 parts of crisp passion fruit powder, 30-60 parts of spices, 1,500-1,800 parts of soybean oil, 1,100-1,200 parts of rapeseed oil, 100-150 parts of white spirit, 150-180 parts of white sugar, a proper amount of salt and a small amount of monosodium glutamate and chicken essence. The preparation method comprises the following steps of a, material preparation; b, a frying process; and c, packaging. The passion fruit chili sauce is scientific and reasonable in raw material formula, unique in flavor and exquisite to prepare; and the preparation method for the passion fruit chili sauce is reasonable and practical.

The invention relates to hydroxyethylated meletin derivative with general formula (I), and the R1, R2, R3, R4, R5 are H or -CH2CH2OH, and at least one of R1, R2, R3, R4, R5 is -CH2CH2OH, but R1, R2 are not H, and R3, R4, R5 are -CH2CH2OH. The invention also relates to method for preparing said compound, comprising dissolving meletin in basic solution, adding epoxyethane or chlorethanol, stirring, neutralizing with acid to be neutral, getting coarse product; removing salt with one methodof normal chromatogram, chromatogram, hyperfiltration, ion exchange, electrodialysis and hyperfiltration; drying and getting yellow or amber-yellow powder hydroxyethylated meletin derivative. The product is widely used in preparing drug, cosmetics, health products and foodstuff.

The invention relates to a special vegetable chilli sauce and a preparation method. The preparation method of the special vegetable chili sauce is characterized by comprising the following raw materials by weight: 10000-12000 parts of red chili paste, 800-1000 parts of old ginger, 1000-1100 parts of peanut kernel, 900-1000 parts of white sesame seed, 500-600 parts of fermented bean curd sauce, 900-1000 parts of broad bean paste, 10-30 parts of crisp special vegetable powder, 30-60 parts of spice, 1500-1800 parts of soybean oil, 1100-1200 parts of rapeseed oil, 100-150 parts of Baijiu, 150-180 parts of white sugar, a proper amount of salt, and a little monosodium glutamate and chicken essence. The preparation method consists of: a. material preparation; b. stir-frying; and c. packaging. According to the invention, the raw material formula is scientific and reasonable, the flavor is unique, the making process is exquisite, and the preparation method is reasonable and practical.

The invention relates to a red phosphorescent macromolecular iridium complex electroluminescent material and a preparation method thereof. The preparation method comprises the following steps: reacting CN bidentate ligands of 2-phenyl substituted quinolines with iridum ions to obtain chlorine bridged cyclic metal iridium dipolymer; reacting the cyclic metal iridium dipolymer with conjugated unsaturated carboxylic acid ligands to prepare an iridium complex monomer; and finally, copolymerizing the iridium complex monomer and a charge transfer material with alkenyl to obtain the red phosphorescent macromolecular iridium complex with a structure shown in the specification. The red phosphorescent macromolecular iridium complex can serve as an organic electroluminescent material; the preparation method is simple and practical; and the obtained material can improve the charge transfer capacity, effectively separate charge and reduce annihilation of excitons, is easy to form an amorphous film and has good processability.

A tunnel-effect magnetic resistor includes a substrate with a bottom electrode layer, a potential barrier layer and a top electrode layer, the potential barrier layer is above the bottom electrode layer but under the top electrode layer, a nailer layer of anti-ferromagnetism perovskite Mn oxide above the substrate and under the strip-shape bottom electrode with lead outlet terminal at both ends, the square potential barrier layer and the top electrode layer above it with lead outlet terminal at the SiO2 seal around them, one or two leads are led out from the outlet terminals of the bottom andthe top electrode layers. With the help of tunnel effect, the current expresses a magnetic resistance effect and the resistance variation, rate of the tunnel junction reaches 28% within 600 Oe magnetic field range.

The invention relates to the technical field of environmental protection, in particular to a preparation method of a high-specific surface area platinum-modified porous carbon-based titanium dioxide photocatalyst for eliminating formaldehyde at room temperature. The method comprises the steps of: using a titanium-based metal organic framework compound as a precursor, preparing a titanium-containing carbon-based composite material through high-temperature carbonization firstly, performing soaking in a chloroplatinic acid solution, then performing mixing with zinc chloride, and finally performing high-temperature activation, water washing and drying so as to obtain the platinum-modified porous carbon-based titanium dioxide photocatalyst. The preparation method is simple and practical, regulation of the performance of the photocatalyst can be achieved by changing the variety and activation temperature of the titanium-based metal organic framework compound, and the obtained platinum-modified porous carbon-based titanium dioxide photocatalyst has the advantages of good porosity, a controllable pore shape, a high specific surface area, good performance of oxidative decomposition of formaldehyde at room temperature and the like, and can be widely applied to air conditioning equipment, ventilation ducts, air purifiers and other devices.

The invention provides epoxidized natural rubber coated modified white carbon black and a preparation method. Compared with a rubber material filled with white carbon black, the rubber material filled with the epoxidized natural rubber coated modified white carbon black can be improved in 300% stretching strength by 80%, the abrasion loss can be reduced by 36%, and the permanent deformation rate can be reduced by 58%. Dispersing liquid of the white carbon black and epoxidized natural rubber are mixed and undergo shearing treatment, solid-liquid separation and high-temperature treatment, so that epoxy groups and silicone hydroxyl undergo chemical bonding, and the epoxidized natural rubber coated modified white carbon black is obtained. The preparation method is simple, convenient and practical and has easiness in industrialization and can be combined with an existing white carbon black production process.

The present invention relates to the production process of black sesame syrup with unique taste, rich nutritive components and special medicinal value. The material includes black sesame in 65-80 wt% and black bean in 20-35 wt%, and the production process includes eliminating impurities, water washing, soaking, milling to produce milk, steam heating, cooling, adding supplementary material, homogenizing, packing, sterilizing, cooling, turning up, and leakage test to obtain finished product. The black sesame syrup is fine in oral feeling, scented, delicious and appetizing.

The invention provides environment-friendly plastic with high weather resistance and a preparation method thereof. The environment-friendly plastic is prepared from the following components: plant straw, shell, polypropylene, carbon ash, a toughening agent, an organic solvent, modified calcium carbonate, talcum powder, an organic silicon solution, polymethylmethacrylate, a curing agent, an antibacterial agent, an antioxidant, a coupling agent and a de-foaming agent. The preparation method provided by the invention is simple and practical and is suitable for large-scale industrial production; the cost of raw material is low and the prepared plastic has good surface smooth finish and has relatively good mechanical strength, impact toughness and weather resistance.