13results about How to "Not volatile" patented technology

The invention belongs to the technical field of synthesis of extraction agents, and particularly relates to a preparation method and application of amido diphosphinic acid. The preparation method comprises the following steps: (1) mixing a solvent, primary amine, cyclohexylphosphinic acid and inorganic acid, and heating until the solution is clear and transparent; (2) adding a formaldehyde solution or paraformaldehyde into the clear and transparent solution for reaction; and (3) removing a water phase from the mixture obtained after the reaction in the step (2) is finished, dissolving jelly obtained after the water phase is removed by using dichloromethane, and carrying out washing, rotary evaporation and drying to obtain the amido diphosphinic acid.

The invention relates to the technical field of automobile parts, and particularly discloses an anti-oxidation corrosion-resistant automobile air-inlet grille and an electroplating process thereof.The anti-oxidation corrosion-resistant automobile air-inlet grille is prepared from phenoxy-terminated siloxane modified polycarbonate, ABS resin, a modified LDHs antioxidant, a compatilizer ABS-g-MAH and a lubricant ethylene bis stearamide through melt blending, extrusion granulation and injection molding. And a copper layer, a nickel-phosphorus layer and a cobalt-chromium layer are further electroplated and deposited on the automobile air-inlet grille, and the anti-oxidation and corrosion-resistant automobile air-inlet grille is formed.

The present invention provides a norbornene preparation method, which comprises that ethylene and cyclopentadiene are subjected to a reaction in an ionic liquid to prepare the norbornene. The preparation method of norbornene provided by the invention has the characteristics of lower reaction pressure and higher safety.

This invention provides a road petroleum asphalt-based hard-soft carbon composite material, the raw materials of which include road petroleum asphalt, light component small molecule stabilizer, heavy component small molecule oxidant, activator, and solvent; and the ratio of road petroleum asphalt:solvent:light component small molecule stabilizer:heavy component small molecule oxidant:activator is 1:15-25:0.05-0.2:0.05-0.2:2-5, calculated in g / mL / g / g / g. Furthermore, this invention also provides a method for preparing the aforementioned hard-soft carbon composite material, which includes the following steps: crosslinking treatment of the light component, crosslinking treatment of the heavy component, activation, and carbonization. This invention solves the problem in the prior art where the high price or low carbon yield of hard carbon precursors, high cost of oxidants, or complex overall formulations lead to high costs for the prepared asphalt-based sodium-ion battery anode carbon materials. The hard-soft carbon composite material of this invention not only has a lower cost but also combines the advantages of both hard and soft carbon, exhibiting high sodium storage capacity, high reversible specific capacity, high initial charge-discharge efficiency, and good cycle performance.

This invention provides an absorbent for capturing carbon dioxide and a method for capturing carbon dioxide. By volume percentage, the absorbent comprises 20-60% glycine salt aqueous solution, 10-50% triethylene glycol monomethyl ether, 5-10% ethylene glycol, and the balance being water. This absorbent combines the advantages of glycine salt systems, such as low volatility, non-toxicity, safety, and better antioxidant degradation resistance, while avoiding the risk of solid precipitates forming after absorption by the glycine salt system, which could cause pipeline blockage.

The application discloses a kind of drying device for silt and its use method, belong to silt processing technical field.The device includes network electricity, rectifier filter circuit, DC-DC converter, DSP processor, single-chip microcomputer control system, PWM amplification circuit, full-bridge inverter circuit and electrode.Network electricity is converted into direct current by rectifier filtering, and voltage conversion is carried out by DC-DC converter;DSP processor evaluates silt state and generates pulse signal, and single-chip microcomputer generates PWM signal, which is amplified to drive full-bridge inverter circuit to convert direct current into bipolar pulse voltage output to electrode, forming alternating electric field.Use method includes placing silt between electrodes, starting device, detecting humidity, optimizing tracking optimal drying point by resistivity-frequency closed loop, accelerating moisture migration, until resistivity is greater than 200Ω·m and humidity reaches 40% to complete drying.The device has the characteristics of low energy consumption, high efficiency, accurate control and no electrode corrosion.

The invention provides a green and environment-friendly high-alumina fly ash multi-component synergistic extraction method, and belongs to the technical field of fly ash extraction. The preparation method comprises the following steps: adding sodium carbonate into fly ash serving as a raw material, mixing and calcining to obtain a nepheline phase which is easily soluble in an acidic medium; then adding sulfuric acid to decompose the sintered product to dissolve the sintered product, heating and aging to separate silicon from aluminum to obtain silica gel and a metal salt solution, using the silica gel to prepare white carbon black, and separating and purifying the metal salt solution to prepare aluminum oxide, iron oxide, calcium hydroxide and magnesium hydroxide. According to the method, the problems of low utilization rate and impure product in the traditional extraction process are better solved, the utilization rate of useful substances in the fly ash can reach 95% or above, and the method is more environment-friendly, so that green, refined and efficient utilization of the fly ash is realized.

The invention discloses pentaerythritol tetra (6-naphthyl hexanoic acid) ester and a preparation method and application thereof, the preparation method adopts two-step reaction of alkylation and esterification, the first step is that naphthalene and 5-hexenoic acid are subjected to alkylation reaction to generate 6-(1-naphthyl) hexanoic acid; and 2, carrying out a reaction on the 6-(1-naphthyl) hexanoic acid and thionyl chloride, and carrying out an esterification reaction with pentaerythritol to finally obtain the oily pentaerythritol tetra (6-naphthyl hexanoic acid) ester. The prepared pentaerythritol tetra (6-naphthyl hexanoate) ester has a structure with a symmetric four-arm core, a flexible alkyl chain and a rigid naphthalene end group, is shown as a formula (I), is used for lubrication and sealing of various equipment, and has the advantages of oxidation resistance, high and low temperature resistance, extreme pressure resistance, good lubrication and sealing performance and the like.

The invention discloses a metal cutting fluid and a preparation method thereof.The metal cutting fluid is prepared from base oil, sucrose fatty acid ester, deionized water, glycerin, a lubricant, an antirust agent, a penetrant, modified molybdenum disulfide and phase-change heat storage microcapsules, the phase-change heat storage microcapsules can absorb heat and reduce temperature, heat generated in the cutting machining process can be taken away in time, and the cutting efficiency is improved. Compared with the existing base oil, the metal cutting fluid has the advantages that the temperature rise is obviously reduced, the metal cutting fluid cannot be decomposed due to high temperature, the volatilization is not easy, the service life of the cutting fluid is prolonged, the use amount of the cutting fluid can be reduced, the metal cutting fluid has good lubricity, rust resistance, corrosion resistance and stability, and the cutting quality can be improved.

This invention discloses a modified aluminide coating based on Ni2Al3 powder, its preparation method, and its application, belonging to the field of high-temperature alloy surface protection technology. The invention uses Ni2Al3 powder and aluminum powder as the aluminum source, silicon powder and rare earth oxides as modifiers, and polyvinyl alcohol aqueous solution as a binder. These are mixed to form a slurry, which is then coated onto the surface of an alloy substrate. After high-temperature sintering, a coating is formed on the substrate surface. This invention introduces Ni2Al3 alloy powder to replace traditional pure Al powder as the aluminum source, fully utilizing the advantages of Ni2Al3 alloy powder, overcoming the limitations of existing coating preparation methods, and effectively improving the stability of the coating under high-temperature environments. It has significant engineering application value and broad industrial prospects in the field of anti-oxidation protection in high-temperature environments such as aero-engine turbine blades.

The invention discloses an aquatic organism impregnated specimen stationary liquid, an aquatic organism impregnated specimen stationary assembly, an aquatic organism impregnated specimen preparation method and application, and the aquatic organism impregnated specimen stationary liquid comprises the following components in parts by mass: 20-30 parts of white oil, 50-60 parts of paraffin oil, 15-25 parts of silicone oil, 1-2 parts of menthol and 1-2 parts of camphor. According to the invention, several kinds of safe and nontoxic mineral oil in daily industry are introduced as main components of the stationary liquid, and menthol and camphor with anti-corrosion and color-retaining functions are added, so that the stationary liquid simultaneously has fixing and anti-corrosion effects; and the refractive indexes of the stationary liquid and the glass support can be increased to a similar level, so that the effect of hiding the support is achieved. The manufactured aquatic organism impregnated specimen has the advantages of being safe, non-toxic, not prone to volatilization, low in cost, easy to configure, capable of achieving safe interaction, high in permeability and artistic ornamental value, and can be better used for exhibition display, science popularization and entertainment of small and medium-sized aquatic organisms.

The utility model relates to the technical field of electronic cigarettes, in particular to an electronic cigarette with functions of preventing self-starting and tobacco tar volatilization. The electronic cigarette comprises a bottom cover, air adjusting silica gel, air channel silica gel, air channel oil absorption cotton, a toggle switch, a microphone and microphone silica gel. The inner side of the bottom cover is sequentially provided with air adjusting silica gel, air passage oil absorption cotton and air passage silica gel; vent holes are formed in the air adjusting silica gel, the airway silica gel and the airway oil absorption cotton to form an air inlet channel; the bottom cover is provided with a hole and a toggle switch; the microphone silica gel is arranged on the side edge of the airway silica gel; a microphone is arranged in the microphone silica gel; a gap between the airway silica gel and the airway oil absorption cotton forms a microphone airway; an air sealing plug is further included; the air sealing plug is arranged in the air inlet hole of the toggle switch and the air holes in the air adjusting silica gel, the air channel silica gel and the air channel oil absorption cotton in a penetrating mode to block the air inlet hole and the air holes. The problems of self-starting, tobacco tar volatilization and the like of the electronic cigarette are solved; the method can be applied to electronic cigarettes.

This application relates to the field of biotechnology and discloses a purification process for the OAS1-Cas12aREC fusion protein, specifically including its encoding gene, expression vector, and purification process. This application achieves optimal matching between the encoding gene of the OAS1-Cas12aREC fusion protein and the E. coli translation system by targeted optimization, eliminating translational bottlenecks and unfavorable elements, thereby increasing the yield and purity of the OAS1-Cas12aREC fusion protein. Furthermore, it optimizes the reagents used in the protein purification process to further promote the yield and purity of the OAS1-Cas12aREC fusion protein, while also preventing protein oxidation and stabilizing the protein structure, making it less prone to denaturation.