13results about How to "The preparation method is reasonable" patented technology

The invention discloses an acrylic pigment rod and a manufacturing method thereof. The acrylic pigment rod comprises the following raw materials: 30-60% of a solvent, 3-18% of a water-soluble adhesive, 5-15% of stearic acid, 5-20% of a sodium hydroxide solution, 8-15% of a humectant, 1-3% of a dispersant and 3-10% of a pigment. The water-soluble adhesive contains a water-soluble acrylic resin. The preparation method comprises the following steps: uniformly mixing the pigment, the dispersing agent and part of the humectant, grinding to obtain a color paste, dissolving the water-soluble adhesive in the solvent to obtain an adhesive solution, and putting the stearic acid, the sodium hydroxide solution, the humectant and the color paste into the adhesive solution to obtain a pigment semi-finished product; and pouring the pigment semi-finished product into a pen body mold, and cooling and molding to obtain the acrylic pigment rod. The manufacturing method is simple and reasonable, and the obtained acrylic pigment rod has the advantages that the acrylic pigment rod can be used for smoothly writing and drawing on various base materials, is good in covering power and soluble in water, and enables a picture to have a shading effect; and the market demand is met.

The invention discloses a three-dimensional vapor chamber and a manufacturing method thereof, and the manufacturing method comprises the steps: providing a housing of a closed housing structure, arranging a backflow cavity in the inner cavity of the housing, and arranging a through hole in the cavity wall of the backflow cavity; the liquid absorption core is manufactured through the procedures of slurry manufacturing, film coating, high-temperature treatment, cutting and shaping treatment, the porosity of the liquid absorption core is 40%-90%, holes in the liquid absorption core are through holes with the micro-nano-scale hole diameter, and the through holes are communicated to form a channel for a liquid phase medium to rapidly flow. And after the liquid absorbing core is placed at a preset position of the inner cavity of the shell, the liquid absorbing core and the shell are combined into a whole through sintering, and the three-dimensional vapor chamber with the channel connected and communicated with the backflow cavity is manufactured. The manufacturing method is simple and reasonable, continuous and large-scale production can be achieved, and the obtained three-dimensional vapor chamber is high in three-dimensional heat conduction efficiency, small in structure, high in finished product yield, good in reliability and long in service life and has important practical value and wide application prospects.

The invention discloses a step thick copper embedded heat dissipation substrate and a processing method thereof, and the processing method comprises the steps: processing an outer layer thick copper foil of the substrate into a step structure composed of a thin copper region and a thick copper region, and manufacturing an inner layer circuit on the thin copper region; pasting a first photosensitive insulating layer on the step structure, and then exposing and developing to form a first hole and a second hole of which the inner wall roughness is not greater than 5 [mu] m on the first photosensitive insulating layer; a chip is fixedly arranged on the part, exposed out of the first hole, of the thick copper area; and covering the first photosensitive insulating layer and the chip with a second photosensitive insulating layer, forming an outer circuit connected with the chip pin on the second photosensitive insulating layer, and forming a first connecting copper body connected with the inner circuit and the outer circuit in the second hole, thereby obtaining the stepped thick copper embedded heat dissipation substrate. The machining method is high in machining efficiency and precision and low in machining cost, and the obtained heat dissipation substrate is high in heat dissipation performance, high in circuit pattern fineness and small in signal loss and meets production requirements.

The invention belongs to the technical field of traditional Chinese medicine, and particularly discloses a traditional Chinese medicine composition for promoting blood circulation, dredging vessels, tonifying kidney and promoting intelligence and a preparation method thereof, and the traditional Chinese medicine composition is prepared from red peony root, ligusticum wallichii, prepared rhizome of rehmannia, dogwood, semen brassicae, polygala tenuifolia, rhizoma acori graminei, angelica sinensis, poria cocos and other raw medicinal materials. The whole formula adopts the treatment method of promoting blood circulation to remove meridian obstruction, tonifying kidney and promoting intelligence, and especially for senile vascular dementia, the cognitive impairment of rats with vascular dementia and clinical patients can be remarkably improved. The invention further provides a preparation and a preparation method of the traditional Chinese medicine composition, and the whole process preparation method is simple and convenient and easy to popularize.

The invention discloses high-dosage rubber powder modified asphalt and a preparation method thereof, and the rubber powder modified asphalt is prepared by adding 22-30 parts by weight of modified rubber powder into 100 parts by weight of road petroleum asphalt, the modified rubber powder is prepared from the following components in parts by weight: 85 to 95 parts of common rubber powder, 3 to 6 parts of phenolic resin, 0.6 to 1.2 parts of microcrystalline wax, 2 to 5 parts of naphthenic oil, 0.2 to 0.6 part of antioxidant and 0.2 to 0.6 part of EVA (Ethylene Vinyl Acetate). The preparation method comprises the following steps: (1) preparing the modified rubber powder; and (2) preparing the modified asphalt cement. According to the invention, co-melting and blending of the rubber powder and the asphalt are improved, the mixing amount of the rubber powder in the rubber asphalt can be obviously increased, the pavement and durability are greatly improved, the production cost and environmental pollution of the asphalt mixture are effectively reduced, and the asphalt mixture has economic and social double benefits, is simple in preparation process and has relatively high practical application value.

The invention discloses a magnetic ternary chalcogenide two-dimensional nanosheet material as well as a preparation method and application thereof, and belongs to the technical field of biological medicines. The chemical structural general formula of the material is ABC2 at a targeting ligand, in which A is Cu or Ag, B is a ferromagnetic element, and C is S, Se or Te. The magnetic ternary two-dimensional nanosheet material is simple to operate and easy to popularize, and the magnetic ternary two-dimensional nanosheet material can be used for achieving CT enhanced imaging of related diseases, MRI enhanced imaging, related disease treatment and other biomedical applications.

The application provides an edible active coating for preventing dry consumption under an ultralow temperature condition and a preparation method, and belongs to the technical field of active packaging. The application combines double-layer coatings, inhibits free radical oxidation generated by freezing through an inner antioxidant, and effectively locks water and blocks external oxygen permeation through the synergistic effect of an outer high-barrier structure, thereby significantly improving the freezing preservation effect of food, and the raw materials are natural and safe, the preparation method is reasonable, and the application has good practical application value. The application solves the problems of poor effects of edible freezing protection coatings suitable for extremely cold environments in the prior art.

The invention discloses an integrated plate for a fuel cell and a manufacturing method thereof, a cell membrane electrode and a fuel cell, the integrated plate comprises a functional part, the functional part is provided with at least two layers of functional layers which are stacked and are of porous network structures, holes in the at least two layers of functional layers are three-dimensional through holes with the average pore size of micro-nano scale, and the functional layers are arranged in the functional part. The three-dimensional through holes in the at least two functional layers are communicated with each other to form a three-dimensional capillary pore channel for gas and liquid transmission; by taking the state that the integrated plate is arranged on the outer side of the catalyst layer of the fuel cell as a reference, the average pore diameters of the three-dimensional through holes in the at least two functional layers are gradually reduced from outside to inside, namely, the average pore diameters of the three-dimensional through holes in the functional layers are in gradient distribution. The manufacturing method of the integrated plate is simple and reasonable, and the obtained integrated plate integrates multiple functions of uniform gas guide, good water / steam drainage, excellent electric conduction and heat conduction performance, ultra-thin / integrated structure and the like, and meets the use requirements of the proton exchange membrane fuel cell.

The application discloses a kind of buried copper block circuit board and its manufacturing method, the manufacturing method includes: the two outer layers of core plate are copper foil layer, and window position A is provided on the non-line area of one outer layer;Core plate is double-sided inner layer pattern production, to make inner layer circuit pattern and pad on the two outer layers of core plate respectively, and make a plurality of flow blockings on one outer layer of core plate, which are surrounded outside window position A;The insulating layer is covered on the two outer layers of core plate, and window position B is provided on the insulating layer adjacent to flow blocking, which is opposite to window position A;Based on window position, insulating layer and core plate are windowed;After the copper block gap with rough surface is placed in window, it is compressed and handled, and in the process of compression, the flow of colloid in window is controlled by flow blocking, so that copper block is firmly combined with insulating layer and core plate together.The manufacturing method is simple and reasonable, easy to implement, the reliability and stability of the obtained circuit board product are high, and the market demand is met.

The application provides N-(3,5,6-trimethylpyrazine-2-methylene)-huperzine A and a synthetic method and application thereof. A structural formula is as follows: a preparation method thereof comprises the following steps: (1) carrying out bromination reaction on tetramethylpyrazine to obtain 2-bromomethyl-3,5,6-trimethylpyrazine; (2) carrying out condensation reaction on huperzine A and 2-bromomethyl-3,5,6-trimethylpyrazine to obtain N-(3,5,6-trimethylpyrazine-2-methylene)-huperzine A. The compound not only has acetylcholinesterase inhibition effect, but also can prevent brain nerve tissue aging and cell apoptosis by eliminating ROS and free radicals and resisting oxidative damage, so as to intervene in the development of Alzheimer's disease.

The application discloses a low-temperature high-strength neutral soldering paste and a manufacturing method thereof. The soldering paste has the following raw material formula in percentage by weight: 87-92% of tin-based alloy powder, 3.5-5% of activating agent, 0.5-1.2% of reinforcing agent, 0.5-2% of thixotropic agent and 2-6% of solvent. The alloy components in the tin-based alloy powder and their percentage by weight are as follows: 90-95% of Sn, 2-5% of Ag, 0.2-1% of Cu and 2-6% of Bi. The activating agent is composed of dimethylol propionic acid, sodium phosphate and ammonium fluoroborate according to a weight ratio of 1: (0.1-0.4): (1.5-2). The reinforcing agent comprises reinforcing alumina particles subjected to metallization treatment, and the reinforcing alumina particles have a nanoscale particle size. The soldering paste has the characteristics of low welding temperature, good wettability, improved solder joint shear strength, neutral no post-welding corrosion and the like, and is suitable for precise welding scenes.

The present invention discloses a three-dimensional heat spreader and a manufacturing method thereof, the manufacturing method comprising: providing a shell with a closed shell structure, a reflux cavity is provided in the inner cavity of the shell, and a through hole is provided on the cavity wall of the reflux cavity; a liquid absorbent core is manufactured by slurry manufacturing, coating, high temperature treatment, cutting and shaping processing steps, the porosity of the liquid absorbent core is 40% to 90%, the holes in the liquid absorbent core are through holes with a micro-nano aperture, and the through holes are connected to form a channel for rapid flow of a liquid phase medium; after the liquid absorbent core is placed in a preset position in the inner cavity of the shell, it is sintered and combined into one body to obtain a three-dimensional heat spreader in which the channel is connected and communicated with the reflux cavity. The manufacturing method is simple and reasonable, and can realize continuous and large-scale production. The obtained three-dimensional heat spreader has high three-dimensional heat conduction efficiency, miniaturized structure, high finished product yield, good reliability, and long service life, and has important practical value and broad application prospects.

The invention discloses a bipolar plate, a manufacturing method thereof and a fuel cell, and the manufacturing method of the bipolar plate comprises the following steps: selecting metal powder with conductive and heat-conducting properties, compounding and mixing the metal powder with a binder, a solvent and a pore-forming agent, and then carrying out high-temperature treatment to prepare a functional layer with a porous network structure; and selecting an ultra-thin metal layer, stacking the ultra-thin metal layer and the functional layer, and performing high-temperature sintering to obtain the bipolar plate. The manufacturing method of the bipolar plate is simple and reasonable, automatic, large-scale and efficient processing production can be realized, and the obtained bipolar plate has the characteristics of good heat conductivity, high electric conductivity, high mechanical strength, high air tightness, capability of meeting the two-way transmission flow requirements of uniform gas inflow, liquid outflow and non-interfering gas-liquid flow, and the like. And the use requirements of the proton exchange membrane fuel cell are well met.