55 results about "Trimethylsilane" patented technology

The application relates to the technical field of cosmetics, in particular to a high-concealment makeup-maintaining air cushion and a preparation method thereof. A film forming agent in the high-concealment makeup-maintaining air cushion comprises the following: trimethylsiloxy silicate 5-7 parts, isododecane 0.3-0.7 parts, and acrylic acid (ester) / polymethyltrimethicone methacrylate copolymer 2-3 parts. A colorant comprises the following raw materials in parts by weight: titanium dioxide 5-7 parts, silica 0.8-1.2 parts, mica powder 5-7 parts, CI 77492 0.4-0.8 parts, aluminum hydroxide 0.8-1.2 parts, CI 77491 0.4-0.6 parts, triethoxyl octyl silane 0.8-1.2 parts, and CI 77499 0.3-0.5 parts. The particle size of the titanium dioxide at least comprises any two of 4 nm, 30-50 nm and 200-260 nm. The air cushion has the advantages of prolonging the makeup-maintaining time of the air cushion and improving the concealment effect.

The present invention provides a method for selecting an inorganic filler, which can select an inorganic filler suitable for use in combination with a silane coupling agent using a functional group present on the filler surface as an index, and a method for producing a surface-treated inorganic filler and a method for producing a composite material using the selected inorganic filler. [Solution] The method for selecting an inorganic filler is a method for selecting an inorganic filler having a hydroxyl group, and includes the steps of: reacting the inorganic filler having a hydroxyl group with a trimethylsilylating agent to obtain an inorganic filler having a trimethylsilyl group; measuring the carbon concentration in the inorganic filler having a trimethylsilyl group by elemental analysis and calculating the concentration A of trimethylsilylated hydroxyl groups in the inorganic filler having a trimethylsilyl group based on the carbon concentration; and selecting an inorganic filler having a hydroxyl group based on the hydroxyl group concentration A.

A method of controlling stress variation in a layer including silicon oxycarbide formed using a capacitively coupled plasma enhanced chemical vapour deposition system. The method includes providing a chamber comprising a platen for supporting a substrate, placing a substrate, upon which a layer comprising silicon oxycarbide is formable, upon the platen, introducing a gas comprising oxygen into the chamber, introducing trimethylsilane gas into the chamber, generating a plasma within the chamber, maintaining a temperature at which deposition takes place to less than 275° C., maintaining a pressure within the chamber in the range 1.5-3 Torr, and depositing the layer upon the substrate with a deposition rate >1.5 μm / minute.

The present application relates to the technical field of foundation products, in particular to a foundation product with a two-phase film-forming system and a preparation method thereof, which is prepared from the following raw materials in terms of mass percentage: phase A: 0.1-5% of an organic silicon surfactant, 2-35% of a colorant, 0.02-20% of a silane film-forming agent, 0.01-55% of a conditioning agent, and 0.02-5% of a silicon-modified clay; phase B: 0.001-1% of a plant-derived film-forming agent, 1-20% of a polyhydric alcohol humectant, 0.1-2% of an inorganic salt, 0.1-2% of a preservative, and deionized water to make up the rest; the silane film-forming agent at least includes trimethylsiloxysilicate and polymethylsilsesquioxane; and the plant-derived film-forming agent at least includes a too-kui agave leaf extract. The foundation product with the two-phase film-forming system has good water resistance, skin adhesion, and durability, and the product has finer powder and better skin adhesion, thus better meeting the use requirements of consumers.

The invention relates to the field of batteries, and particularly discloses a reversed-phase micro-micelle electrolyte system for an aqueous battery as well as a preparation method and application of the reversed-phase micro-micelle electrolyte system. The electrolyte system is composed of tris (trimethylsilane) phosphate, isopropanol, metal salt and water, and a reverse micelle structure with the average hydration size of 1-2 microns is formed through molecular self-assembly among the components. The unique structure limits water molecules in micelles and near an electrode interface, and cooperates with a firm SiO2-P2O5 inorganic interface layer generated on the surface of an electrode in situ to jointly inhibit side reactions such as decomposition of water, so that an electrochemical stability window of an electrolyte system at-20-60 DEG C is 5.0-6.0 V. When the composite material is applied to a water-based zinc ion battery, the super-long cycle life under high voltage and wide temperature range can be realized at the same time, and a new scheme is provided for developing a water-based energy storage device with high performance and high safety.

The application relates to the technical field of sodium ion batteries, in particular to an electrolyte for a sodium ion battery and a sodium ion battery thereof. The electrolyte comprises organic solvents, sodium salts and additives in percentage by weight. The additives comprise malonic acid compounds, nitrile compounds and tris(trimethylsilyl) phosphate. The additives of the electrolyte comprise macromolecular malonic acid compounds, which can effectively react with alkaline substances on the surface of a positive electrode material, form a film on the positive electrode, slow down or prevent the decomposition of the electrolyte solvent by the alkaline substances; meanwhile, the tris(trimethylsilyl) phosphate and the nitrile compounds in the electrolyte can effectively inhibit the oxidation reaction of Fe and Ni in the positive electrode and prevent the reduction of Fe and Ni in the negative electrode; the above-mentioned joint action can effectively improve the cycle life of the sodium ion battery.

This invention discloses a sodium-ion battery electrolyte, belonging to the field of sodium-ion battery technology, comprising an organic solvent, a sodium salt, and additives; the organic solvent includes ethylene carbonate, propylene carbonate, methyl ethyl carbonate, and ethyl acetate; the sodium salt includes sodium hexafluorophosphate and sodium difluorosulfonylimide; the additives include fluoroethylene carbonate, vinylene sulfate, sodium difluorophosphate, sodium difluorooxalate borate, and tris(trimethylsilane)phosphate. The sodium-ion battery electrolyte of this invention, through precise adjustment of the solvent and sodium salt ratio, maintains high conductivity at extremely low temperatures, significantly raising the lower limit operating temperature of the battery to -70°C. Simultaneously, through the synergistic effect of the sodium salt and additives, a high-temperature resistant SEI film rich in inorganic components is formed, reducing side reactions at high temperatures and raising the upper limit operating temperature of the battery to 85°C, achieving a wide temperature range application of the battery from -70°C to 85°C.

The application discloses a kind of anti-inflating inner tube rubber compositions and preparation method thereof, belong to rubber composition preparation technical field.The composition is composed of the following components: butyl rubber, modified ethylene-propylene-diene rubber, polyester nanofiber, soft carbon black, paraffin oil, silane coupling agent, activator, petroleum resin, antioxidant, vulcanizing agent, accelerator;The silane coupling agent is the mixture of silane coupling agent Si-69, gamma-(methacryloyloxy) propyl trimethyl silane and N-(beta-aminoethyl)-gamma-aminopropyl trimethyl (ethyl) oxysilane with mass ratio 2:1:1.The air retention and inflation stability of the composition can be greatly improved by modifying ethylene-propylene-diene rubber, limiting the proportion of butyl rubber, and limiting the substance and ratio of silane coupling agent, which improves the service life and safety performance of the inner tube.

This invention belongs to the field of organosilicon thermally conductive materials, and provides a liquid silicone rubber system for thermally conductive pads and its preparation method. The system comprises vinyl-terminated dimethyl polysiloxane, MQ / phenyl-enriched pre-crosslinked polysiloxane microgel, vinyltrimethoxysilane-modified hexagonal boron nitride, alumina, trimethylsilane-terminated dimethylsiloxane-methylhydrosiloxane copolymer, 1,3-divinyl-1,1,3,3-tetramethyldisiloxane zero-valent platinum complex, and 1-ethynyl-1-cyclohexanol, forming a two-component packaging. This system is advantageous in balancing thermal conductivity, electrical insulation, flowability, defoaming, softness and fit, and long-term stability, making it suitable for the preparation of thermally conductive pads.

The invention provides a repair process for a selective atomic layer. The repair process comprises the following steps: placing a semiconductor structure in an ALD reaction cavity, firstly introducing a first precursor to perform selective adsorption on the surface of a metal interconnection line, then introducing a second precursor to react with the first precursor adsorbed on the surface of the metal interconnection line, and repeating the steps of selective adsorption and reaction to obtain a metal atomic layer; wherein the first precursor is selected from bis (hexafluoroacetylacetone) copper (II) or (trimethylsilane methyl) copper (I); the second precursor is a reducing gas. According to the method, the specific chemical reaction between the specific precursor substance and the copper metal surface is adopted, high selectivity in the repairing process is achieved, then through the reduction reaction, the deposition reaction only occurs on the exposed surface of the copper interconnection line and in pores and gaps in the copper interconnection line and does not deposit on the dielectric layer, and then precise repairing is achieved.

This invention discloses a α The electrosynthesis method of α-aminomethyltetrazole includes: using a platinum sheet as the cathode and a carbon rod as the anode, and employing ammonium tetrabutyltetrafluoroborate as the electrolyte under constant current catalysis, a one-pot coupling of a tertiary amine, an isonitrile, and azide trimethylsilane to prepare the α-aminomethyltetrazole. α The step involving the aminomethyltetrazole derivative, followed by post-treatment and column chromatography separation of the resulting reaction mixture, yields... α - Pure aminomethyltetrazole. This invention yields it through a single reaction step. α -Aminomethyltetrazole has fewer operating steps, avoids the use of large amounts of oxidants and additives, simplifies post-processing, and makes the product easy to separate.

This invention belongs to the field of lithium-ion battery technology, specifically relating to a lithium secondary battery and its application. The battery pack includes alternating positive and negative electrodes, with the outermost layer of the battery pack being entirely positive electrodes, and a separator containing an electrolyte disposed between the positive and negative electrodes. The positive electrode comprises lithium manganese iron phosphate, and the electrolyte comprises an electrolyte, an organic solvent, and additives. The additives contain tris(trimethylsilane) phosphate, with a mass content of 0.5-3 wt%. This invention significantly improves the cycle stability of the battery and substantially enhances the cycle life of lithium secondary batteries using lithium manganese iron phosphate positive electrode materials.

This invention discloses a sunscreen film composition co-assembled with film-forming agents and powders and its application. The composition comprises the following raw materials in parts by weight: 0.5-2.9 parts of trimethylsiloxysilicate, 0.4-2.1 parts of polysiloxane-15, 0.2-1.2 parts of silica, and 0.3-1.4 parts of vinyl polydimethylsiloxane / polymethylsiloxane silsesquioxane crosslinked polymer. This invention employs a co-assembly strategy of film-forming agents and powders. By selecting and combining film-forming agents and powders with silicon-oxygen bonding structures, a sunscreen film with tensile strength, friction resistance, and migration resistance is constructed from both molecular and particle dimensions, solving the problems existing in current sunscreen film-forming technologies. At the same time, when the composition is applied to sunscreen products, it can effectively improve the whitening and oily shine of the products.

To provide a novel production method for perfluoroalkyl trimethylsilane that is simpler and more suitable for industrial use, utilizing perfluoroalkyl iodide, which is not subject to production regulations, as the raw material.SOLUTION: A production method for perfluoroalkyl trimethylsilane represented by the general formula (3) includes reacting perfluoroalkyl iodide represented by the general formula (1) with halogenated trimethylsilane represented by the general formula (2) in a polar aprotic solvent in the presence of aluminum. The formula (1) is Rf-I (where Rf represents a C1-3 perfluoroalkyl group). The formula (2) is X-SiMe3 (where X represents a chlorine, bromine, or iodine atom). The formula (3) is Rf-SiMe3 (where Rf represents a C1-3 perfluoroalkyl group).SELECTED DRAWING: None

This invention belongs to the field of new materials for daily chemical products and discloses a single-component aerosol foundation spray, comprising a propellant and a water-in-oil emulsion. The total weight of the water-in-oil emulsion is 100 wt%, and the emulsion contains the following components: dipropylene glycol 6-8 wt%; 1,2-hexanediol 0.6-1 wt%; isomeric oligosaccharides 2-3 wt%; trimethylsiloxysilicate 1.5-2 wt%; VP / hexadecene copolymer 1.5-2.5 wt%; dual-terminated vinyl polyether silicone oil 0.5-0.7 wt%; inorganic salt content less than 0.2 wt%; and an appropriate amount of emulsifier. The single-component aerosol foundation spray of this invention has comprehensive advantages such as smooth spraying, excellent low-temperature stability, and superior film-forming effect.

The application discloses a lignin nanobottle-based photothermal super-hydrophobic deicing coating composition, a coating and a preparation method and application thereof, and belongs to the technical field of coating materials. The coating composition comprises, in mass fractions, 1-20 parts of matured modified lignin nanobottle, 1-10 parts of aminopropyl-terminated polydimethylsiloxane, 1-10 parts of trimesaldehyde, 10-100 parts of hexadecyl trimethylsilane, 10-70 parts of methyl trimethoxysilane and 3000-3500 parts of a solvent. The lignin nanobottle is modified by maturation to enhance the stability and photothermal performance, the aminopropyl-terminated polydimethylsiloxane and the trimesaldehyde are subjected to Schiff base reaction to form an imine bond cross-linked hydrophobic supramolecular polymer, so that the coating has excellent self-healing property and the stability of the coating is enhanced. The various components cooperate with each other, greatly improve the hydrophobic property, weather resistance and deicing property of the coating, and prolong the service life of the coating.

A lithium-ion battery electrolyte and a lithium-ion battery. In order to solve the problem of poor high-temperature performance and normal-temperature cycle performance of a high-voltage NCM system lithium-ion battery, the electrolyte comprises: an organic solvent, a lithium salt, and an additive, wherein the organic solvent comprises a fluorinated carboxylic ester and a carbonate excluding ethylene carbonate, and wherein the additive comprises one or more of an alkynyl carbonate derivative, a dioxane compound, and a cyclic anhydride, and one or more of vinylene carbonate, fluoroethylene carbonate, ethylene sulfate, lithium difluorophosphate, lithium difluoro bis(oxalato) phosphate, and tris(trimethylsilyl) phosphate. The stability of the high-voltage NCM system lithium-ion battery at a high voltage is greatly improved by means of optimizing the combination of a solvent system and an additive, wherein the solvent system has a mixture of a fluorinated carboxylic ester and a carbonate excluding EC, such that the normal-temperature cycle performance, high-temperature cycle performance, high-temperature storage, and other such capabilities of said high-voltage NCM system lithium-ion battery are all improved.

The application discloses an ionic liquid containing a boron-containing oxygen ring and a benzene ring, a preparation method and application, and the ionic liquid is obtained by the reaction of tris(trimethylsilyl) borate, dichloroethylene, 4-p-chlorophenyl imidazoline and diisopropylamine; the ionic liquid can be used for alcoholysis of PET to obtain DMT, improve the conversion rate of DMT, and has a significant prospect in the application of PET degradation and recycling of DMT.

The invention relates to the field of functional styrene materials, and discloses a fireproof flame-retardant HIPS material and a preparation method thereof. The fireproof flame-retardant HIPS material is prepared from the following raw materials in parts by weight: 100-120 parts of HIPS resin, 12-18 parts of a toughening agent, 10-20 parts of a plasticizer, 7-12 parts of a composite flame retardant and 0.5-2 parts of an antioxidant, the composite flame retardant is composed of a coating agent, an inorganic nano flame retardant, nano silicate and a phosphate flame retardant; the coating agent is prepared from (1-hydroxyl allyl) trimethylsilane, vinyltris (methylethylketoxime) silane and ethylene glycol dimethacrylate. According to the fireproof flame-retardant HIPS material prepared by the invention, the inorganic nano flame retardant is used as a main flame-retardant component, so that the fireproof flame-retardant HIPS material has relatively good fireproof flame-retardant property and mechanical property under the condition that a relatively small amount of flame retardant is added, and is wide in application range.

The invention relates to a lithium ion battery and a preparation method thereof. The lithium ion battery comprises a positive pole piece, a diaphragm, a negative pole piece and an electrolyte, the positive pole piece comprises a high-moisture-sensitive positive pole active material, the specific surface area of the positive pole active material is 5m / g-80m / g, and the residual moisture content of the dried positive pole piece is 200ppm-400ppm; the electrolyte comprises a lithium salt, a solvent, a film-forming agent, an auxiliary agent and a hydrogen elimination agent, the film-forming agent is prepared from 1, 3-propane sultone and 0.3 percent to 1.0 percent of ethylene sulfate; the auxiliary agent is tris (trimethylsilane) phosphate; the hydrogen eliminating agent is ammonium p-nitrobenzoate. The lithium ion battery can be compatible with the positive pole piece with relatively high residual moisture, and side reaction caused by the positive pole piece can be effectively inhibited through an electrolyte system with a special formula, so that excellent electrochemical performance and safety are obtained.

The invention discloses a method for synthesizing tris (trimethylsilane) borate through a microchannel reactor, and belongs to the technical field of lithium battery electrolyte additives. According to the technical scheme, the preparation method comprises the following steps: 1) raw material preparation: dissolving reactants boric acid and hexamethyldisilazane in a solvent to prepare a boric acid solution and a hexamethyldisilazane solution respectively; 2) micro-channel reaction: conveying the prepared boric acid solution and hexamethyldisilazane solution to a micro-channel reactor, and reacting at set reaction temperature, reaction pressure and retention time to obtain a reaction solution; and 3) product separation: carrying out reduced pressure distillation on the reaction liquid to obtain the product tris (trimethylsilane) borate. The microchannel reactor is used for reaction, raw materials are relatively safe, reaction efficiency is high, by-products are environmentally friendly, corrosion to equipment is low, aftertreatment is simple, the product yield is high, addition of a catalyst is not involved, the waste treatment process is reduced, and the production cost is saved.

The invention belongs to the technical field of new energy batteries, and particularly relates to a lithium ion battery. The lithium ion battery comprises a positive electrode, a negative electrode, a diaphragm and a non-aqueous electrolyte, the anode and the cathode respectively comprise an anode current collector and a cathode current collector; the positive current collector is an aluminum foil or a composite current collector, the negative current collector is a copper foil or a composite current collector, and at least one of the positive current collector and the negative current collector is a composite current collector; the non-aqueous electrolyte contains triphenyl phosphate and a first additive, and the first additive comprises at least one of tris (trimethylsilane) phosphate, tris (trimethylsilane) borate or tris (trimethylsilane) phosphite; when the positive current collector is a composite current collector and / or the negative current collector is a composite current collector, the lithium ion battery meets the following conditions: (a + c) * b * d is more than or equal to 1 and less than or equal to 500; 0.5 < = a < = 2, 20 < = b < = 800, 0.5 < = c < = 2, and 0.01 < = d < = 1. The lithium ion battery has the advantages of high energy density, low impedance increase and excellent cycle performance.

The invention discloses a gas chromatography method for detecting the content of trioctyl phosphate products and impurities, and belongs to the technical field of organic chemical detection. The core of the method is that (trimethylsilyl) diazomethane (TMSCH2N2) is adopted as a derivatization reagent, and dioctyl phosphate (P204) in a sample is subjected to rapid and safe derivatization at room temperature; an optimized dichloromethane-hexane mixed solvent system is adopted for dilution, so that the solubility is remarkably improved, and the toxicity is reduced; a first-order heating rapid screening method (17min) is suitable for industrial quality control, a multi-order heating accurate quantification method (29min) is suitable for small-scale test process research and development, and trioctyl phosphate (TOP), P204, isooctyl alcohol, isooctyl ether and chloro-isooctane can be accurately quantified at the same time. The method solves the problems of high toxicity, low efficiency, narrow detection range, single mode and the like in the prior art, and has the remarkable advantages of safety, high efficiency, accuracy, environmental protection and wide adaptability.

The invention discloses mulching film grade PBAT and a preparation method thereof.The preparation method comprises the steps that a first catalyst is mixed with an esterification reactant of terephthalic acid and butanediol to obtain a terephthalic acid ester, and a second catalyst is mixed with an esterification reactant of adipic acid and butanediol to obtain an adipic acid ester; the first catalyst and the second catalyst are independently a mixture of benzamido glycolic acid and isopropyl titanate or a mixture of tris (trimethylsilane) phosphate and isopropyl titanate, and the first catalyst and the second catalyst are different; and mixing the terephthalic acid ester, the adipic acid ester and tetradecyl amide glycollic acid for polymerization reaction to obtain the mulching film grade PBAT. The preparation method is simple and easy to operate.

The invention relates to a mono-boratriazole compound as well as a synthesis method and application thereof, positive ion boron-nitrogen alkyne and (trimethylsilyl) diazomethane are subjected to cycloaddition reaction, trimethylsilyl is migrated from carbon atoms to nitrogen atoms to form a positive ion mono-boratriazole framework, trimethylsilyl and counter ions are further removed by using alkali, and the mono-boratriazole compound is obtained. The mono-boratriazole compound is obtained. The mono-boratriazole compound disclosed by the invention has a wide application prospect in the fields of metal coordination reaction, reverse cyclization ring-opening reaction and preparation of unsaturated boron compounds.

In order to solve the problem that an existing lithium ion battery is poor in cycle performance and safety performance, the invention provides a lithium ion battery which comprises a positive electrode, a negative electrode, a diaphragm and an electrolyte, the positive electrode comprises a positive electrode active material layer, and the positive electrode active material layer comprises a positive electrode active material and an oxide solid electrolyte; the surface of at least one side of the diaphragm is coated with an oxide solid electrolyte coating, the electrolyte comprises a first additive and a second additive, the first additive comprises mannitol carbonate sulfate, and the second additive comprises tris (trimethylsilane) borate; the lithium ion battery meets the following relational expressions: (1) 0.33 < = B / A < = 3; formula 2: 0.43 < = (A + B) / (H + X) < = 3.91; formula 3: 0.26 < = (B + X) / (A + H) < = 2.33.

The invention discloses a protective coating for a semiconductor heating device and a preparation method of the protective coating. The preparation method of the protective coating comprises the following steps: uniformly mixing and ball-milling an organic solvent, yttrium oxide, silicon dioxide and boron nitride, and adding a modifier for reaction to obtain mixed slurry; spraying the mixed slurry on a substrate, and drying to obtain a precursor; and putting the precursor into a deposition furnace, introducing trimethylsilane, hydrogen and argon, and depositing to obtain the protective coating deposited on a substrate. The protective coating has good adhesive force, hardness and protective performance, and the stability of the semiconductor heating device under extreme conditions can be effectively improved.

This invention provides a fluorine-free silicone-containing waterproofing agent, its preparation method, and its application, belonging to the technical field of textile functional finishing agents. The fluorine-free silicone-containing waterproofing agent provided by this invention comprises, by mass percentage: 10-15% modified silicone resin, 10-15% modified polysiloxane, 1-5% surfactant, 5-10% organic solvent, and the balance being water. This invention modifies the silicone resin using 2-(trimethylsilane)ethanethiol and 3-chloro-1-propanethiol, introducing shorter-chain hydrophobic groups and polar groups with stronger hydrophobicity. Simultaneously, the modified silicone resin is dissolved using polysiloxane modified with shorter-chain hydrophobic groups, thereby improving the waterproofing and wash resistance of the fluorine-free silicone-containing waterproofing agent.

This application discloses an electrolyte and a secondary battery. Additive A and additive B are added to the electrolyte. Additive A contains negatively charged sulfonate ions and positively charged nitrogen atoms, forming a zwitterionic compound. Additive A can generate passivation films on the surfaces of both the positive and negative electrodes, thereby stabilizing the electrolyte. Additive B includes any one of tris(trimethylsilane)borate, tris(trimethylsilane)phosphate, and tris(trimethylsilane)phosphite, which helps reduce the electrolyte impedance. Additives A and B work synergistically to reduce gas production during cycling, improve the high-temperature storage performance of the secondary battery, and enhance its cycle performance.

The invention discloses a high-performance lithium ion battery electrolyte and a preparation method thereof, and relates to the technical field of lithium ion batteries, the high-performance lithium ion battery electrolyte comprises the following raw materials: a composite electrolyte, a composite solvent, an additive and a surface modifier; the content of the additive in the electrolyte is 1.8 to 4.56 percent; the additive is prepared from pentafluorophenyl diethoxy phosphate, 2, 5-dichlorobenzotrifluoride and vinylene carbonate; the composite electrolyte comprises lithium bis (fluorosulfonyl) imide, lithium difluoro (oxalato) borate and lithium bis (trifluoromethylsulfonyl) imide; the composite solvent is prepared from ethylene carbonate, fluoroethylene carbonate, methyl trifluoroethyl carbonate and trimethylsilyl acetate; and the surface modifier is prepared from tetramethyl-tetravinyl siloxane and vinyl-triethoxy silane. The lithium ion battery electrolyte provided by the invention has excellent thermal stability and flame retardance.