776 results about "Silane compounds" patented technology

A lithium-ion battery having excellent high-temperature storage and high-temperature cycling performance. The lithium-ion battery comprises a positive electrode, a negative electrode, and a non-aqueous electrolyte solution. The negative electrode comprises a negative electrode material layer containing a silicon-based material. The non-aqueous electrolyte solution comprises a lithium salt, an organic solvent, and an additive, the organic solvent comprising fluoroethylene carbonate, and the additive comprising a silane compound containing at least one carbon-carbon double bond. The lithium-ion battery satisfies the following conditions: 5≤(S*R) / (F*T)≤35, 5≤f≤15, 1.4≤R≤1.68, 9≤S≤18, and 0.01≤T≤0.5. According to the lithium-ion battery, the mass percentage content of the organic solvent and the additive in the non-aqueous electrolyte solution are controlled, and the mass percentage content of elemental silicon in the negative electrode material layer is controlled and the compaction density of the negative electrode material layer is controlled to be within a certain range, such that the lithium-ion battery has excellent high-temperature storage performance and an excellent high-temperature cycle life, while also taking into account high energy density.

The invention relates to the technical field of catalyst carriers, and relates to a modified alpha-alumina carrier, a preparation method thereof, a supported silver catalyst and application. The modified alpha-alumina carrier is an alpha-alumina carrier with a silane coupling structure on the surface, and silane is at least one of silane compounds containing 1-3-Si-O-C-structures and containing vinyl or amino. Preferably, the silane compound is selected from at least one of vinylmethoxysilane, 3-aminopropyltriethoxysilane and methylvinyldimethoxysilane. According to the modified alpha-alumina carrier, the silane solution is adopted to treat the alpha-alumina carrier, silane contains a-Si-O-C-structure, the group can form a relatively stable structure on the surface of the carrier after hydrolysis or dehydration condensation, and influence is generated for a long time in the use process of a silver catalyst, so that the performance of the catalyst is improved.

The invention discloses super-hydrophobic high-thermal-stability piperazine pyrophosphate and a preparation method thereof.The super-hydrophobic high-thermal-stability piperazine pyrophosphate comprises piperazine pyrophosphate, the surface of piperazine pyrophosphate is coated with a vesicle structure, and the vesicle structure is a self-assembly structure obtained after alcoholysis reaction of a polysulfide silane compound and piperazine pyrophosphate. According to the sulfur-containing silane material with piperazine pyrophosphate coated with the vesicle structure, piperazine pyrophosphate has super-hydrophobic performance due to the vesicle structure, super-hydrophobic durability is achieved, good water resistance and extremely low moisture absorption can be kept in a high-humidity environment, and the problem that piperazine pyrophosphate powder absorbs moisture and is agglomerated can be solved. The vesicle structure has the effects of blocking heat and substance transfer and reducing the thermal oxidation rate of PAPP, so that the piperazine pyrophosphate provided by the invention also has excellent thermal stability and final char forming performance, and is beneficial to reducing the dosage of the piperazine pyrophosphate in a flame-retardant high polymer material.

An organofunctional silicone or silane compound suitable for use as an electrolyte is provided. The organofunctional silicone or silane compound may be used to provide an electrolyte composition suitable for use in an electrochemical device. The organofunctional silicone or silane compound can be used as an electrolyte additive, co-solvent, solvent used in an electrolyte formulation which may be suitable for electrochemical devices.

A multifunctional organosilicon compound is provided which has the general formula XSi([OSiR2]p-0-SiR2Y)a(R1)3-a— ln the formula, X is selected from H and ethylenically un saturated moieties; each Y independently comprises a functional moiety selected from alkoxysilyl moieties, acryloxy moieties, and epoxide moieties; each R is an independently selected hydrocarbyl group; each R1 is an independently selected hydrocarbyl group; subscript a is 1, 2, or 3; and each subscript b is independently 0, 1, or 2. A method of preparing the multifunctional organosilicon compound is also provided. The method comprises reacting (A) an organosilanol compound and (B) a silane compound having at least two hydrolysable groups. A functionalized siloxane compound prepared from the multifunctional organosilicon compound, a method of preparing the functionalized siloxane compound, and an adhesive comprising the functionalized siloxane compound are also provided.

Provided is an adhesive composition from which an adhesive layer having excellent heat-resistant durability can be formed. This adhesive composition comprises a (meth)acrylic resin, a crosslinking agent, a silane compound, and an ionic compound, wherein: the (meth)acrylic resin contains, as monomer units, an alkyl (meth)acrylate having a homopolymer glass transition temperature of lower than 0ºC, an alkyl (meth)acrylate having a homopolymer glass transition temperature of at least 0ºC, and a monomer having a polar group; and the ionic compound contains a cyano group-containing anion.

[Problem] To provide: metal oxide particles that can be highly concentrated in an organic solvent, which is a dispersion medium for a metal oxide sol, and can also be redispersed in the organic solvent; a metal oxide sol containing the metal oxide particles; and a method for producing same. [Solution] Metal oxide particles surface-coated with a hydrolysate of a silane compound (A) having two chemical groups (a1) and two hydrolyzable groups (a2), wherein the metal oxide particles contain a basic compound (I) (excluding ammonia), have a hydrophobicity of 30-80 vol% as measured by a methanol titration method, and can be dispersed at a particle refractive index of 1.4-3.0 and at a metal oxide concentration of at least 40 mass% in an organic solvent, or can be dispersed at a particle refractive index of at least 1.1 and less than 1.4 and at a metal oxide concentration of at least 25 mass% in an organic solvent.

The invention relates to the technical field of coating materials, and discloses a pure titanium micro-arc oxidation coating for a vacuum cup and a preparation method thereof.The preparation method comprises the following steps that surface pretreatment is conducted, specifically, a pure titanium vacuum cup inner container workpiece is sequentially subjected to degreasing, acid pickling and ultrasonic cleaning; preparing an electrolyte, namely adding 15-25 parts by weight of a silicon-containing compound, 5-12 parts by weight of metal salt, 3-8 parts by weight of an antibacterial agent and 1-5 parts by weight of a stabilizer into deionized water, and controlling the pH value to be 8.5-10.5; and performing micro-arc oxidation treatment. According to the invention, a silane compound in the micro-arc oxidation electrolyte contains a high-activity silanol group which is subjected to condensation reaction with titanium hydroxyl on the surface of a pure titanium substrate under the action of an electric field to form stable covalent bonding, so that the bonding strength of the coating and the substrate is enhanced; metal ions generated by metal salt electrolysis are co-deposited with titanium ions through plasma discharge, a composite oxide structure is constructed, and micro defects on the surface of a titanium substrate are sealed.

The invention provides a high-entropy multi-diluent electrolyte which comprises a first diluent and a second diluent, the first diluent comprises a silane compound which does not dissolve lithium salt and a derivative of the silane compound, and the second diluent comprises at least one of halogenated ether, a derivative of halogenated ether, benzene and a derivative of benzene. The double diluents promote decomposition of lithium salt to form fluorine-containing SEI, so that formation of lithium dendrites is inhibited, and compared with a traditional low-concentration electrolyte and a single-diluent local high-concentration electrolyte, the high-entropy double-diluted local high-concentration electrolyte can prolong the cycle life of a lithium battery and improve the ionic conductivity of the electrolyte.

The invention discloses conductive paste, a preparation method thereof and a radio frequency identification tag. The conductive paste comprises the following raw materials in parts by mass: 30-40 parts of spherical silver powder, 3-6 parts of carbon nanotubes, 20-30 parts of a resin adhesive, 40-50 parts of a diluent and 2-4 parts of a dispersant, the resin adhesive comprises polyurethane resin and an organosilicone modified acrylate monomer in a mass ratio of (8-9): (1-2), and the organosilicone modified acrylate monomer is obtained by hydrosilylation of a hydroxyl acrylate monomer and a hydrogen-containing silane compound in a molar ratio of (1.0-1.1): 1. According to the invention, the contradiction between the conductive performance and fluidity and the product flexibility of the conductive paste can be effectively solved, and the RFID product with high conductivity, printing quality and mechanical flexibility can be prepared.

The invention provides a product with a luminous pattern and a preparation method thereof, the product comprises a base material and a luminous layer existing in at least partial area of the surface of the base material, the area, in contact with the luminous layer, of the base material is modified and then compounded with a material of the luminous layer, the base material comprises an inorganic non-metallic material, and the inorganic non-metallic material is a metal material. The light-emitting layer includes a quantum dot material having fluorescence characteristics, and the modification is to treat the region of the substrate using a silane compound containing fluorine atoms and an aliphatic group having 8 or more carbon atoms.

The invention provides an amphiphilic modified silane coupling agent as well as a preparation method and application thereof, and belongs to the field of material chemistry. The invention provides an amphiphilic modified silane coupling agent preparation method, which comprises: in the presence of an acid-binding agent and a first solvent, carrying out a reaction on a hydroxyl-containing hydrophilic polymer and halogenated acyl halide to obtain an ATRP initiator; in the presence of a metal salt catalyst, a ligand and a second solvent, reacting an ATRP initiator with an acrylate monomer to obtain an active macromolecule containing an amphiphilic group; in the presence of an alkali reagent and a third solvent, the active macromolecules containing the amphiphilic groups react with a silane compound containing amino groups, and the amphiphilic modified silane coupling agent is obtained. The silane coupling agent provided by the invention can be effectively applied to a coating, not only can improve the interface performance between an inorganic matter surface and an organic coating, but also can effectively improve the tensile strength, the waterproof and anti-fouling properties and the tensile strength after re-coating of a coating.

A solid electrolytic capacitor that includes an anode body having a porous part on surface thereof and a manufacturing method thereof including a step (i) of forming a first solid electrolyte layer on a dielectric layer and a step (ii) of forming a second solid electrolyte layer on the first solid electrolyte layer. The first and second solid electrolyte layers contain first and second conductive polymers, respectively. The step (i) includes a step (i-a) of supplying a reaction solution containing a monomer and a silane compound to the surface of the dielectric layer, and a step (i-b) of forming the first solid electrolyte layer by polymerizing the monomer in the supplied reaction solution to form the first conductive polymer. The monomer contains a compound represented by the following formula (I) (in the formula (I), R represents an alkyl group whose carbon number is within a range of 1 to 10).

A room-temperature-curing resin composition, which contains in specific ratios(A) an organic polymer in which molecular chain ends are capped by hydrolyzable silyl groups and / or hydroxysilyl groups and(B) a hydrolyzable organosilane compound represented in general formula (1) below and / or a partially hydrolyzed condensate thereof(where R1 is a monovalent hydrocarbon group having a carbon number of 1-10, n is 1-8, and m is 3 or 4),has equivalent or superior curing properties compared to conventional alcohol-release or oxime-release room-temperature-curing resin compositions even if various catalysts are used, can reduce harmful effects on humans and environmental load, and can provide a cured rubber product after curing having favorable rubber properties, adhesion, and durability.

The present application relates to the technical field of lithium-ion batteries, and specifically relates to a cylindrical lithium-ion battery having improved high-temperature storage performance and high-temperature cycle performance. The cylindrical lithium-ion battery comprises a positive electrode, a negative electrode and a non-aqueous electrolyte solution, wherein the negative electrode comprises a negative electrode material layer containing a negative electrode active material, the negative electrode active material comprising a silicon-based material; and the non-aqueous electrolyte solution comprises a lithium salt, an organic solvent and an additive, the organic solvent comprising dimethyl carbonate, and the additive comprising a silane compound represented by structural formula 1. The cylindrical lithium-ion battery satisfies the following condition: 0.04≤(100-D)×F / S≤5, wherein 50≤D≤75, 0.01≤F≤0.5, and 5≤S≤20. In the cylindrical lithium-ion battery of the present application, the electrolyte solution contains the silane compound represented by structural formula 1 as an additive and dimethyl carbonate as the organic solvent, and therefore the problem of battery failure caused by the expansion of the silicon-based negative electrode can be improved, the service life of the battery can be prolonged, the battery is ensured to have good high-temperature performance, and the effect of inhibiting gas production during high-temperature storage is obvious.

The invention provides a powdery modified aramid nanofiber filler as well as a preparation method and application thereof, and belongs to the technical field of composite materials. The method provided by the invention comprises the following steps: firstly, adding a water-soluble high polymer into a solvent, then adding nano aramid fiber hydrogel into the solution, and finally, respectively adding an alkoxy silane compound and a silicate compound into the solution to obtain the powdery modified aramid nano composite filler with functionalized silicon dioxide nanoparticles grafted on the surface. The modified aramid nano composite filler prepared by the invention is powdery solid filler, is easy to industrialize, and can be applied as nano composite filler of a polymer composite material. According to the prepared modified aramid nano composite filler / polymer composite material, the problem that the aramid nano fibers are difficult to disperse in the polymer is effectively solved, and more importantly, the physical and mechanical properties of the composite material are improved.

A composition according to the present disclosure contains: a hydrolyzable group–containing silane compound (A) that does not contain elemental fluorine; and a non-functional silicone oil (B).

The invention relates to a binder composition for manufacturing a wood-based material, a method for manufacturing such a wood-based material and such a wood-based material. In order to provide a binder composition for manufacturing a wood-based material, in which the speed of curing can be specifically controlled and at the same time diffusion of the binder into the wood material to be bound is prevented in the best possible way, thereby ensuring a safe, fast and cost-effective manufacturing process with the lowest possible use of binder, fast and cost-effective manufacturing process with the lowest possible binder consumption without reducing the product quality, it is provided that the binder composition comprises an organic phase having at least one polymer adhesive, an aqueous phase, at least one phase transfer catalyst for accelerating the curing of the polymer adhesive and a hydrophilizing agent comprising or formed from at least one silane compound for increasing the hydrophilicity of the polymer adhesive and / or for reducing the penetration of the polymer adhesive into the material of the wood-based material to be bonded.

The invention discloses a secondary battery and an electric device, and belongs to the technical field of batteries. According to the secondary battery provided by the invention, the lithium supplement agent is introduced into the positive electrode active material layer, and the silane compound containing carbon-carbon double bonds and the cyclic lithium borate compound are added into the electrolyte; the non-Faraday capacitance of the positive pole piece, the mass percentage of the lithium supplement agent in the positive active material layer, the mass percentage of the silane compound containing the carbon-carbon double bond in the electrolyte and the mass percentage of the cyclic lithium borate compound in the electrolyte are reasonably controlled, so that the secondary battery meets the specific relational expression: (Cdl-0. 1) 2 * (A + B + 1) * 100 / N2 is greater than or equal to 10; therefore, excellent cycle performance, rate capability and safety performance of the secondary battery can be realized at the same time.

The present invention provides a compound represented by formula (1). [In the formula, R1 is a monovalent group containing one or more Si atoms to which a hydroxyl group or a hydrolyzable group is not directly bonded, X1 is a divalent organic group containing an alkylene group having 11 or more carbon atoms, and RSi is a monovalent group containing Si atoms to which a hydroxyl group or a hydrolyzable group is bonded. ] R1-X1-RSi (1).

The invention relates to a thermoplastic polyamide moulding compound consisting of the following components: (A) 30 to 74.5 wt.% of at least one partially crystalline, partially aromatic copolyamide 6T / Z with a melting point of at least 270°C, wherein the polyamide unit Z is formed from at least one lactam or an aminocarboxylic acid and / or from polyamide units different from 6T consisting of at least one diamine and at least one dicarboxylic acid, wherein the 6T content in 6T / Z is more than 50 mol-%, based on the molar proportions of all polyamide units; (B) 25 to 50 wt.% glass fibres with an average diameter of 5 to 8 µm, wherein the glass fibres are coated with a sizing composition containing (b1) at least one silane compound, (b2) at least one polymer or copolymer based on unsaturated carboxylic acids and / or unsaturated carboxylic acid anhydrides, and (b3) an epoxy resin, a polyurethane resin, or a polyamide resin, with the proviso that if component (b3) is a system containing carboxylic acid and / or anhydride, the sizing composition may also omit component (b2); (C) 0.5 to 8 wt.% impact modifier; (E) 0 to 20 wt.% amorphous, partially aromatic polyamide; (D) 0 to 10 wt.% additives other than (A)-(C) and (E); and wherein the sum of components (A) to (E) totals 100 wt.% of the polyamide moulding compound.

A lithium supplement and a preparation method therefor, a positive electrode sheet, and a battery. The lithium supplement comprises: a core, wherein the core comprises LiaMbOc, wherein a is 2-6, b is 0-4, c is 1-6, and M comprises at least one of Mg, Al, Si, Ca, V, Cr, Mn, Fe, Co, Ni, Cu, Zn, Zr, Nb, Mo, Ru, and Sn; and a coating layer, wherein the coating layer at least covers part of the surface of the core, and the coating layer contains at least one of a silazane compound, a siloxane compound, a sulfonic acid silane compound, and a carbodiimide compound.

The present invention provides a compound represented by the following formula (1) wherein R1 is a monovalent group containing one or more Si atoms to which neither a hydroxyl group nor a hydrolyzable group is directly bonded, X1 is a divalent organic group including an alkylene group having 11 or more carbon atoms, and RSi is a monovalent group containing a Si atom to which a hydroxyl group or a hydrolyzable group is bonded.         R1-X1-RSi     (1)

Aiming at the characteristics of an ITO (Indium Tin Oxide) film, the invention specifically develops an acrylate polymer, an ultraviolet curing type adhesive composition prepared from the acrylate polymer and a polaroid adopting the ultraviolet curing type adhesive composition. According to the acrylate polymer, alkyl (meth) acrylate is adopted as a main framework, a main chain and branched chains do not contain unsaturated bond functional groups, and the weight-average molecular weight is 100,000-300,000. The ultraviolet curing type adhesive composition is prepared from the following components in parts by weight: 20 to 40 parts of acrylate polymer, 15 to 35 parts of acylamino-containing monomer, 13 to 40 parts of alkyl (meth) acrylate, 5 to 8 parts of silane compound, 1 to 5 parts of antistatic agent and 0.4 to 1.0 part of photoinitiator. The adhesive composition is designed and various parameters are controlled, so that the adhesive layer and the film material are combined more firmly, the polaroid with good bonding durability with ITO is obtained by controlling the gel fraction and the UV curing energy, the appearance flatness is good, and warping defects are avoided.

The invention provides an electrolyte, the electrolyte comprises a non-aqueous organic solvent, a lithium salt and a silane-based diluent, and the silane-based diluent comprises at least one of a silane compound containing a silicon-carbon bond and a derivative thereof, a silane compound containing a silicon-oxygen bond and a derivative thereof, and a silane compound containing a silicon-nitrogen bond and a derivative thereof. The silane-based diluent promotes decomposition of lithium salt to form fluorine-containing SEI, so that formation of lithium dendrites is inhibited, and compared with traditional low-concentration electrolyte and high-concentration electrolyte, the local high-concentration electrolyte diluted by silane can prolong the cycle life of a lithium battery.

This fluoropolyether-based curable composition contains(A) a perfluoropolyether compound having two or more alkenyl groups per molecule,(B) a fluorine-containing organo hydrogen silane compound having two or more hydrosilyl groups having a specific structure,(C) a platinum group metal-based catalyst, and(D) a specific amount of at least one filler selected from organic resin powders and carbon black powders.Such a fluoropolyether-based curable composition can provide a cured product that has endurance against fluoric acid and electrolytic solutions for lithium ion batteries, has fine mechanical properties, and has excellent releasability because of not having uncured portions resulting from low compatibility between structural ingredients.

The invention discloses a high-strength antibacterial polypropylene staple fiber and a preparation method thereof. The polypropylene staple fiber comprises the following raw materials in parts by mass: 100 parts of polypropylene and 1-3.5 parts of modified nano titanium dioxide, the modified nano titanium dioxide comprises the following raw materials: nano titanium dioxide, a vinyl silane compound, double-end hydrogen-containing silicone oil and styrene in a mass ratio of 100: (3-5): (10-30): (2-5), and the double-end hydrogen-containing silicone oil has two silicon hydrogen end-capping groups; the nano titanium dioxide is subjected to surface treatment by a vinyl silane compound, and then is subjected to hydrosilylation reaction with double-end hydrogen-containing silicone oil and styrene under the action of a platinum catalyst. According to the invention, the polysiloxane chain segment with enhancing, plastifying and broad-spectrum antibacterial effects is introduced to graft the nano titanium dioxide, so that the balance of various properties such as mechanical strength, antibacterial efficiency and softness of the polypropylene staple fiber is realized.

The present invention provides a heat insulating material for battery packs, which is excellent in deformability against compression and in recovery after unloading, by using a pressure-molded body of a composition having a powder of a porous structure, and a method for producing the same. [Solution] The insulating material for a battery pack includes a pressure-molded body 1 of a composition having a powder of a porous structure in which a plurality of primary particles are linked to form a skeleton and pores are present between the skeletons. The porous structure is produced by a sol-gel reaction of a solution containing two or more types of silane compounds with different numbers of siloxane bonds, and the powder of the porous structure is composed of particles 10 of different shapes and sizes obtained by pulverizing the porous structure. The content of the powder of the porous structure in the composition is 65% by mass or more when the solid content of the composition is 100% by mass, and the porosity of the pressure-molded body is 20% or less.

A fluorine atom-containing silane compound represented by formula (1), wherein the meaning of each symbol is the same as that described in the description. (Rf1) [alpha] 1-XA-(RSi) [alpha] 2... (1)

The present invention relates to: an organosilane compound; a hair coloring composition comprising same; and a hair coloring shampoo comprising same. Also, the present invention relates to a composition for hair. By comprising an organosilane compound having a specific structure, the composition according to the present invention can achieve the effects of preventing and reducing hair frizz, preventing thermal damage to hair, and styling hair.