123results about How to "Improve release ability" patented technology

The invention provides a method for preparing a hetero-atom doped porous carbon material through carbonation of biomass under the assistance of molten salt. The method comprises the following steps: uniformly mixing biomass powder, the molten salt and a hetero-atom doped compound to obtain a product A, wherein the molten salt contains LiCl and KCl, the mass of LiCl accounts for 59 percent of that of the molten salt, and the mass of KCl accounts for 59 percent of that of the molten salt; putting the product A in a pipe furnace; carrying out high-temperature calcination; cleaning with distilled water to remove the molten salt and obtain the final product, namely the hetero-atom doped porous carbon material. The method has the advantages that the biomass is taken as a raw material, and the molten salt containing hetero-atoms is taken as a carbonization medium, so that the hetero-atoms can be introduced into the skeleton of the carbon material during the pyrolysis and carbonization process of the biomass synchronously and controllably, and the hetero-atom in-situ doped porous carbon material is obtained finally. Compared with the conventional doping method, the method provided by the invention have the advantages that the steps are simple; the cost is low; the operation is easy; the reactant purity is high; the application prospect is relatively good.

A nano-class propolis product used to prepare softgel, capsule or infusion is prepared through stirring the alcohol solution of propolis while adding fused polyethanediol 6000 by water bath at 60-80 deg.C stirring, adding lecithin, stirring, ultrasonic vibration, freeze drying, dissolving it in water, filtering by millipore membrane and evaporating drying or freeze drying.

The invention provides a preparation method for graphitized porous carbon for a supercapacitor. The preparation method comprises a step I of adding activated seaweed carbon to a transition metal salt solution, and uniformly mixing the activated seaweed carbon with the solution to obtain a product A; and a step II of obtaining the final product graphitized porous carbon through filtering, drying, high-temperature roasting and acid-washing of the product A. According to the preparation method provided by the invention, the activated porous carbon is soaked in the metal salt solution, a catalyst precursor is introduced for treatment at high temperature to obtain a graphitized nanometer structure inside the porous carbon. The seaweeds are used as raw materials, loaded with metal nanometer particles and catalyzed at high temperature to obtain the graphitized porous carbon, so that the specific surface area of the porous carbon material is remarkably improved, and good load storage capacity is obtained; and moreover, the graphitized structure is introduced, so that the integral conductivity of the material is greatly improved, and the material still has good energy storage and release ability under high current density.

The invention relates to a bowel-relaxing cataplasm and its preparing process, which is mainly prepared from rhubarb horsetails 27-35%, fruit of citron or trifoliate orange 8-12%, magnolia bark 8-12 parts, banksia rose 8-12%, areca-nut 8-12%, Chinese angelica root 8-12%, astragalus root 8-12%, and fevervine 8-12%.

The invention relates to a preparation method of a chitosan-based slow-release flavor type nano composite micro-capsule coating material. Chitosan shows relatively good application prospects in the field of functional coatings and in the field of coating finishing, but has relatively less application research in leather finishing materials. The preparation method comprises the following steps: preparing a weak acid solution, adding chitosan powder, performing ultrasonic treatment, and stirring to obtain a chitosan dissolved solution; dissolving an amphiphilic copolymer micelle F127 into an organic solvent to form a uniform and transparent solution, adding a nano-particle precursor and essence molecules, and performing ultrasonic treatment to obtain a mixed solution; and injecting the mixed solution into the chitosan dissolved solution by adopting a micro-injector, continuously stirring, and drying the organic solvent by virtue of evaporation to obtain the chitosan-based slow-release flavor type nano composite micro-capsule coating material. A micro capsule prepared by using the method disclosed by the invention is stable in structure and regular in size, has certain film-forming properties and essence coating and control release properties, and has relatively good application potential in the fields of functional leathers, textiles and related coating materials.

Stable blend compositions composed of mixtures of polysiloxane(s) and organic polymer(s) are claimed. These polymer blends are white and opaque indicating the presence of phase separation on the micron scale. Such blends can be stored for long periods of time (years) without exhibiting evidence of macroscopic phase separation. These stable blends are achieved without substantial crosslinking as evidenced by the fact that the polymer blend is readily dissolved in a suitable organic solvent for molecular weight characterization. The stable blends of the present invention have particular utility as fouling release coatings for marine applications.

The invention provides an environment protective mildewproof piece and a preparation method thereof; the mildewproof piece comprises raw materials in the following weight percent: 25 percent to 50 percent of plastics, 15 percent to 40 percent of filler, 25 percent to 45 percent of wax and 2 percent to 10 percent of chlorine dioxide; the preparation steps are as follows: the raw materials are fully mixed, evenly stirred, put into an extruder to be heated and extruded into sheets after being melted; the environment protective mildewproof piece has small size, can be widely applied in products, such as food, garment, shoes and leather, has the advantages of sterilization, bacteriostasis, mildewproof, etc., is long-lasting, has strong release performance, is convenient in use and has no pollution to the environment.

An active overvoltage protection gap with a plug-and-pull functions in a gas environment, comprises a cavity with an air pressure of 10<0> to 10<3> or 10<4> to 5 * 10<5> Pa, An upper electrode is arrange in that cavity, a discharge gap formed between the annular intermediate electrodes, a disk-shaped trigger electrode is mounted in the cavity, Between that trig electrode and the intermediate electrode, an annular insulating dielectric material is arrange, a surface flashover discharge interface is for between that trigger electrode, the surface insulating dielectric material and the intermediate electrode to form an active overvoltage protection gap, and the surface flashover discharge interface is perpendicular to or at an acute angle with the low surface of the intermediate electrode, and a shielding cover is arranged in an upper insulating shell around the upper electrode and the intermediate electrode. The upper electrode, the middle electrode and the trigger electrode all extend out of the plug for external electrical connection. The invention can reduce the pulse breakdown voltage of the overvoltage protection gap, and has the characteristics of extremely fast response, strong power frequency freewheeling suppression ability and longer service life.

The invention relates to the technical field of slow-release fertilizer, in particular to a slow-release fertilizer coating material containing terephthalic polyester polyol and a preparation process thereof. The preparation process is characterized in that prepared slow-release fertilizer comprises fertilizer particles and the coating material, the fertilizer particles account for 95%-97.5% of the mass of the slow-release fertilizer, and the coating material accounts for 2.5%-5% of the mass of the slow-release fertilizer; the coating material comprises a component A and a component B, the component A accounts for 50%-60%, the component B accounts for 40%-50% of the weight of the coating material, the component A is polyester polyol which is the terephthalic polyester polyol or a composition of the terephthalic polyester polyol and castor oil, and the component B is isocyanate. The prepared slow-release fertilizer has high abrasion resistance, slow release performance and tenacity; a solvent-free coating technology is adopted in the production process, so that the production cost is low, and production efficiency is high; meanwhile, solvent wasting in the recovery process is avoided, and the slow-release fertilizer has certain biodegradability.

The invention belongs to the technical field of sewage treatment materials and preparation thereof and discloses an in-situ repairing material of bottom mud of a black and odorous water body and a preparation method of the in-situ repairing material. The material is prepared from various raw materials which have good nitrogen and phosphorus removal effects, very good slow release functions and inaddition are rich in source. By improving living environments of microorganisms of the bottom mud, increasing the decomposition speeds of the microorganisms upon organic matters in the bottom mud andimproving the nitrogen and phosphorus removal effects, amount reduction of the bottom mud can be promoted; and in addition, phosphorus in the bottom mud can be effectively immobilized through phosphorus immobilization components in the various raw materials, the phosphorus can be prevented from being released into the water body again, and effects that endogenous pollution is effectively reduced,degradation of pollutants of the bottom mud is accelerated, the amount of sludge of the black and odorous water body is reduced, situations of the water body areimproved, and the treatment effects arelong-lasting can be achieved. The preparation method is simple and rapid in operation process, small in number of equipment for operation, low in requirement on operators, low in cost and applicableto industrial production and popularization, and consumption of labor resources, material resources and economic resources can be effectively reduced.

The invention provides a seedling strengthening agent for rice seedling culture and a use method thereof. The seedling strengthening agent is prepared from the following raw materials in percentage by weight: 45 to 55% of nutrient agent, 8 to 12% of acid regulator, 0.5 to 1.2% of sterilizing and disinfecting agent, and the balance of turfy soil, wherein the nutrient agent is prepared by mixing ammonium sulfate, urea, monopotassium phosphate, potassium humate, calcium magnesium phosphate fertilizer, silicon fertilizer, zinc sulfate, and ammonium ferrous sulfate according to a mass ratio of 1:(0.1 to 0.3):(0.05 to 0.1):(0.2 to 0.4):(0.2 to 0.3):(0.1 to 0.2):(0.02 to 0.06):(0.01 to 0.03); the acid regulator is prepared by mixing concentrated sulfuric acid and natural material with high acid maintaining property; the sterilizing and disinfecting agent is prepared by mixing 10% fubol wettable powder and potassium permanganate according to a mass ratio of 1:(0.2 to 0.7); the natural material with high acid maintaining property is selected from one of straw biomass carbon, expanded vermiculite, and diatomite tailings. The use method comprises the following steps of mixing seedling bed soil and the seedling strengthening agent, primarily adjusting, and slightly adjusting according to the pH (potential of hydrogen) value of the primarily adjusted bed soil. The seedling strengthening agent for rice seedling culture has the advantages that the excellent seedling strengthening, root promoting, greening and disease-resisting functions are realized, the acid stability is higher, and the easiness in recovery of the pH value is avoided.

The invention provides a method for preparing mask base materials. The method includes steps of acquiring coconut water, adding xylan and pectin into the coconut water, carrying out pasteurization, then inoculating acetobacter xylinum into the coconut water, cultivating the acetobacter xylinum until fibrous membranes with the thicknesses of 0.1-0.5 cm are formed on the surface of fermentation liquor, adding cellulase into the fibrous membranes, treating the fibrous membranes, then carrying out ultrasonic treatment on the fibrous membranes in sodium hydroxide solution, washing the fibrous membranes by the aid of clear water until the fibrous membranes are neutral, slicing the fibrous membranes and then carrying out freeze drying on the fibrous membranes to obtain cellulose substrates; acquiring streptococcus zooepidemicus fermentation liquor containing hyaluronic acid, centrifugally removing precipitates, adding supernate into albumen powder, uniformly mixing the supernate and the albumen powder with each other to obtain mixtures, then adding the cellulose substrates into the mixtures, carrying out ultrasonic treatment, taking out the cellulose substrates after ultrasonic treatment is completely carried out, thorough flushing the mixtures by the aid of clear water, carrying out freeze drying on the mixtures and then packaging the mixtures under vacuum conditions to obtain the mask base materials. The method has the advantages that the mask base materials prepared by the aid of the method are excellent in human skin compatibility, free of skin irritation and suitable for various skin types; the mask base materials contain abundant hyaluronic acid, the hyaluronic acid is uniformly distributed, excellent slow-release effects can be realized, the mask base materials are long in skin retention time and are nutritional, and moisture can be preserved.

The invention relates to a fertilizer applicator and a fertilizer suitable for being used by the fertilizer applicator. The fertilizer applicator (1) can be divided into a fertilizer water flow guide pipe (1a), a fertilizer cavity (1b) and a cover (1c) from one end inserted into the soil; the fertilizer water flow guide pipe (1a) is a hollow pipe; the lower end (1a1) of the pipe (1a) is provided a through hole (1a1a); the upper end (1a2) of the pipe (1a) is connected and communicated with the fertilizer cavity (1b); a material (1d) capable of absorbing water and guiding water is contained in the fertilizer water flow guide pipe (1a); a structure (1e) capable of being used for regulating the fertilizer water flow guide quantity and a soil EC meter (1f) are also arranged on the fertilizer applicator. The fertilizer applicator has the advantages that the controllability on the fertilizer release speed to a certain degree is realized; the speed is adjustable according to the requirements; the slow release effect on the fertilizer is high; the continuous fertilizer supply to the plants can be realized; the fertilizer application labors can be reduced; various kinds of fertilizer damage due to improper fertilizer application can be effectively avoided; the fertilizer loss can be obviously reduced; the structure of the fertilizer applicator is simple; the use is convenient; no pollution is caused; the cost is low.

The invention relates to the field of energy conservation and emission reduction and discloses a full automatic water-saving device for a bathroom accessory, which is a water-saving apparatus for purifying and utilizing waste water in a full automatic form and supplementing tap water to flush a urinal. The device comprises a water storage tank and is characterized in that a piston is arranged in the water storage tank to form a piston chamber; a plurality of one-way valves are arranged on the piston; water in the upper part of the water storage tank enters the piston chamber by the one-way valves; the bottom of the piston is provided with a pull-down component for pulling the piston down; a tensile force system and a switching system are arranged on the water storage tank and can be used for controlling the piston to move upwards and switching water; the middle part of the water storage tank is provided with a filter system; the bottom of the water storage tank is provided with a water outlet connected with a water outlet pipe; the water outlet pipe and the switching system are communicated with a urinal water tank; and a pressure release type switch of the tensile force system is stuck to a water outlet button of the urinal water tank. When the urinal is flushed as usual, full automatic water inlet and stop are realized only by pressing the press release type switch once. The full automatic water-saving device for the bathroom accessory, provided by the invention, is remarkable in energy-saving effect, convenient to use, excellent in effect, easy to install and overlong in service life.

The invention relates to the field of genetic engineering and in particular relates to a basic fibroblast growth factor (bFGF) specifically bound with chitin as well as a coding gene, a preparation method and application thereof. The bFGF specifically bound with chitin comprises an amino acid sequence shown in SEQ ID NO:1 and an amino acid sequence shown in SEQ ID NO:2. The bFGF can be specifically bound with chitin and the bonding capacity is far higher than that of the bFGF; therefore the slow-release effects are also stronger than the slow-release effects of the bFGF. In vivo experiments verify that the bFGF specifically bound with chitin has similar biological activity of promoting cell proliferation to the natural bFGF.

The invention provides a tannin microsphere slow release formaldehyde capture agent and a preparation method thereof. The method comprises the following steps of: dissolving chitosan in an acetic acidsolution, stirring at room temperature until the solution is clear and transparent, and dissolving tannin in distilled water, stirring at room temperature until the solution is clear and transparent;mixing the two to form a suspension to obtain a water phase solution; preparing an oil phase solution; mixing the water phase solution and the oil phase solution, stirring at 800-1400 rpm and 40-60 DEG C for 180-300 min to form emulsion, and cooling to room temperature; washing the precipitate by using acetone and finally placing the product in a drying oven and drying the product into powder. The formaldehyde capture agent has the advantages of good microcapsule structure stability, high tannin coating rate and capability of releasing tannin to capture formaldehyde for a long time.

The invention discloses a reactive organic silicon release agent and a preparation method thereof, and belongs to the field of functional additives of high polymer materials. The reactive organic silicon release agent is prepared from sulfydryl polysiloxane, vinyl polysilsesquioxane, an organic solvent, an initiator and the like, and is suitable for medium and high temperature forming processes of composite materials. According to the release agent, in the composite material forming process, polysiloxane is subjected to a cross-linking reaction, and a complete, uniform and high-strength release layer is formed. The release agent is high in release capacity, resistant to abrasion, free of corrosion to a mold and free of influence on the subsequent painting or electroplating procedure of a product.