86 results about "Sulfuric Acid Esters" patented technology

In order to solve the problems of poor high-temperature and low-temperature cycle performance and poor safety performance of a lithium ion battery in the prior art, 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, 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 a fluorosulfonyl amide compound, and the second additive comprises mannitol carbonate sulfate; the lithium ion battery meets the following relational expressions: (H + X) / P is more than or equal to 0.8 and less than or equal to 8; formula 2: 0.75 < = (A + B) / (H + X) < = 20; formula 3: 0.16 < = H / X < = 6.43; formula 4: 1.25 < = A / B < = 36.

The invention discloses a fast-charging lithium ion battery electrolyte, a preparation method thereof and a lithium ion battery containing the fast-charging lithium ion battery electrolyte. The fast-charging lithium ion battery electrolyte comprises the following components: electrolyte salt, an organic solvent and an electrolyte additive, the electrolyte additive comprises a first additive and a second additive; the first additive is a multi-element sulfate ester additive, and the mass percentage of the multi-element sulfate ester additive is 0.05%-2% based on the total mass of the electrolyte being 100%. By adding the polybasic sulfate additive with a specific structure, adopting a composite solvent system and cooperating with the synergistic effect of other additives, lithium salt and other components, dual stability of positive and negative electrode interface films is realized, the electrochemical window of the electrolyte is widened, and the thermal stability and cycling stability of the electrolyte are improved; and finally, the battery has the advantages of fast charging capability, high voltage compatibility, long cycle life and high thermal safety at the same time.

The invention provides a battery and an electric device. A positive plate comprises a positive active material, and the positive active material is doped and / or coated with a lanthanum element; the surface of the diaphragm is coated with a ceramic coating; the electrolyte comprises a first solvent, a second solvent, a first additive and a second additive; the first solvent comprises a cyclic carbonate compound, the second solvent comprises a chain fluorosulfonamide compound, the first additive comprises mannitol carbonate sulfate, and the second additive comprises succinonitrile; the lanthanum element is doped / coated on the positive active material, so that the release of lattice oxygen at high voltage or high temperature can be effectively inhibited, and the exothermic reaction activity at the thermal runaway initial temperature is reduced; the first additive and the second additive in the electrolyte respectively form a compact CEI film and an SEI film with high thermal stability on the surfaces of the positive electrode and the negative electrode; the diaphragm ceramic coating provides a physical barrier, the thermal shrinkage temperature of the diaphragm is increased, and internal short circuit is prevented.

The present application relates to the technical field of medicine, and provides a kind of haena polysaccharide and its preparation method and application and target endogenous coagulation pathway anticoagulant and / or antithrombotic drug.The haena polysaccharide provided by the present application is fucosylated chondroitin sulfate polysaccharide, the weight average molecular weight is 9-13 million, the molar ratio of glucuronic acid, N-acetylglucosamine and fucose is 1:0.8-1.2:0.5-0.8, and the mass percentage content of sulfate group is 25-40%.The haena polysaccharide provided by the present application can target endogenous coagulation pathway terminal rate-limiting enzyme (iFXase), and has no obvious effect on coagulation factors in other coagulation pathways, realizes the effect of anticoagulation and non-hemorrhage, and can be widely applied in acute and recovery period treatment of ischemic stroke, solves the safety problem of using anticoagulant and antithrombotic drug for clinical ischemic stroke patients, and opens up a new field of research and development of target endogenous coagulation pathway rate-limiting enzyme anticoagulant drug.

The invention discloses a method for preparing mildew-proof and insect-resistant wood by adopting a sulfuryl fluoride modification strategy and application of the mildew-proof and insect-resistant wood, belongs to the field of wood chemical modification, and aims to solve the problems that mildew-proof and insect-resistant active ingredients are easy to migrate and lose, the environmental toxicity is high and the like in an existing wood protection method. According to the method, sulfuryl fluoride (SO2F2) is utilized to react with phenolic hydroxyl groups in wood in the presence of alkali to generate covalent linkage of aryl fluorosulfate (Ar-O-SO2F), so that wood modification is realized. The reaction is simple and feasible, and can be carried out under mild conditions. The shape of the wood modified through sulfuryl fluoride is kept, and the wood shows stable performance in the aspects of mildew prevention, insect resistance and the like. The modification method does not depend on transferable effective components, can provide a lasting protection effect for wood, and has a wide application prospect.

The application discloses a short-process printing process of polyester-cotton blended fabric, which comprises screen printing by using active disperse dyes containing double active groups and steaming by using alcohol vapor; the double active groups include hydroxyethyl sulfone sulfate group and CH2CH(OH)CH2X (X is Br or Cl); the CH2CH(OH)CH2X can be converted into an epoxy group under alkaline conditions and can react with the alcohol vapor during the steaming process to realize the cross-linking between dye molecules, so that the effects of improving the fixation efficiency and shortening the process flow are achieved, and then the printed fabric with high color depth and high color fastness is obtained.

The invention discloses a lithium ion battery electrolyte used under the condition of-30 DEG C to-70 DEG C and a preparation method and application thereof, the lithium ion battery electrolyte comprises a lithium salt, an organic solvent and an additive, and the organic solvent is a sulfite solvent or a mixture of the sulfite solvent and a carbonic ester solvent. According to the lithium ion battery electrolyte provided by the invention, sulfite is selected as the solvent of the electrolyte, the electrochemical performance of the lithium ion battery in a low-temperature environment is comprehensively improved, and the lithium ion battery electrolyte has the characteristics of low freezing point, high low-temperature conductivity and good cycling stability.

The present disclosure provides a battery, which comprises: a positive electrode sheet, a negative electrode sheet, a separator, and an electrolyte, wherein the negative electrode sheet has a porosity of φ in %; the separator has a thickness of t in μm and a pore size of R in μm; the ratio of the total mass of the electrolyte to the discharge capacity of the battery is N in g / Ah. The electrolyte comprises an electrolyte additive, and the electrolyte additive comprises a sulfate compound and a first lithium salt, wherein the first lithium salt includes an oxalate-containing lithium salt, the sulfate compound has a structure represented by Formula I, and the mass fraction of the sulfate compound in the electrolyte is C in %. The battery satisfies the expression A, expression A.

The invention discloses an electrolyte additive and a non-aqueous electrolyte and a secondary battery thereof, the electrolyte additive comprises a first additive, a second additive and a third additive, the first additive is a lithium salt containing a fluorine sulfonyl structure; the second additive is a compound containing a sulfonyl structure; the third additive is a compound containing two or more sulfate ring structural units. Through the synergistic effect of the multi-component additives, an interfacial film with differentiated characteristics can be constructed on an electrode interface in situ, so that the high-voltage cycling stability is improved, the side reaction of the interface is reduced, the low-temperature dynamics is optimized, and the rate capability is improved. The invention further discloses a non-aqueous electrolyte containing the electrolyte additive and a secondary battery adopting the non-aqueous electrolyte.

The invention discloses a wide-temperature-range lithium battery electrolyte and a preparation method thereof, relates to the technical field of lithium battery electrolytes, and aims at low-temperature quick charge and high-temperature full charge storage. The electrolyte comprises a component A to a component E, wherein the component A is linear carbonic ester and low-condensation-point carboxylic ester; the component B is a nitrile solvent and a phosphate solvent; the component C is a multi-lithium salt system; the component D is ethylene sulfite; the component E is an acid-triggered cross-linking self-repairing interface reinforcing agent and comprises a multifunctional epoxy unit, latent polyol capable of being triggered by acidic species to release hydroxyl and a boric acid ester dynamic modulation unit; the preparation method comprises the following steps: controlling moisture in an inert atmosphere, preparing a solvent mother solution, dissolving salt step by step, sequentially adding the component D and the component E, filtering and sealing; the electrolyte maintains low viscosity and ion transmission at low temperature, and reduces the risk of lithium precipitation; and gas production and interface degradation are inhibited in a high-temperature charged state, bulk phase thickening is avoided, and the circulation and storage stability is improved.

This invention belongs to the field of surfactant preparation technology, specifically relating to a method for preparing a sulfate ester salt type surfactant. The method includes the following steps: olefins and concentrated sulfuric acid are separately introduced into a microchannel reactor equipped with a catalyst section and mixed and reacted under ultrasonic conditions to obtain an intermediate product; an aqueous solution of NaOH or KOH is added to the intermediate product, the temperature is raised to 90-105℃, and the mixture is stirred and refluxed for 1-2 hours to obtain the sulfate ester salt type surfactant. This invention combines a microchannel reactor with fine chemical synthesis and successfully synthesizes secondary alkyl sulfates. By accelerating the reaction with a catalyst and ultrasound, increasing the phase contact area, and controlling the reaction temperature at a low level, the degree of olefin sulfation is greatly improved, thereby increasing the yield of secondary alkyl sulfates. The method is safe, environmentally friendly, easy to operate, simple in process, and easy to control. It is expected that production can be scaled up to industrial scale through array arrangement.

This application provides a method for preparing and applying a red reactive dye. The method includes the following steps: S1: providing 2-amino-5-(β-hydroxyethyl sulfone sulfate)-1,3,4-thiadiazole; S2: reacting the amino-containing red azo compound with cyanuric chloride, causing the amino group on the amino-containing red azo compound to undergo a substitution reaction with one chlorine atom in the cyanuric chloride, to obtain a red azo compound containing a dichlorotriazine group; S3: reacting the 2-amino-5-(β-hydroxyethyl sulfone sulfate)-1,3,4-thiadiazole with the red azo compound containing a dichlorotriazine group, causing the amino group on the 2-amino-5-(β-hydroxyethyl sulfone sulfate)-1,3,4-thiadiazole to undergo a substitution reaction with one chlorine atom in the red azo compound containing a dichlorotriazine group, to obtain a red reactive dye. The red reactive dye prepared by this application exhibits high fixation rate and excellent alkali fastness in fiber dyeing.

The application provides a battery monomer and a power device, the battery monomer comprising a positive pole sheet, a negative pole sheet and an electrolyte, the electrolyte comprising a first additive and a second additive, the first additive comprising a sulfonic anhydride compound, and the second additive comprising one or more of a sulfuric ester compound, a sulfurous acid ester compound and a sulfonic acid ester compound, wherein the difference between the reduction potential of the first additive relative to Li + and the reduction potential of the second additive relative to Li + is 0.2V-1.5V.

A personal cleansing composition for use in a method of inhibiting or killing the growth of bacteria on human skin wherein the bacteria are selected from the group consisting of: Escherichia coli having a pH of up to or equal to 4 in solution, dermatobacterium acnes, and Corynebacterium minutus; wherein the personal cleansing composition comprises a salt of an alkenyl sulfate having an alkenyl chain, or an isomer thereof, or a mixture thereof, wherein the alkenyl chain comprises 18 to 20 carbon atoms.

A luminescent material comprises a perovskite crystal, a di(meth)acrylate compound of Formula 1 and an aminosilane compound or dispersant: wherein each E is independently H or CH3; each G is independently a branched or unbranched C1-C10 alkanediyl or C3-C12 cycloalkanediyl, optionally substituted with 1 to 3 L5; J is phosphate [OP(=O)(OQ')O], phosphonate [[OP(=O)(OQ1)] carbonate [OC(=O)O], sulfonate [OS(=O)2] or sulfate [OS(=O)2O]; wherein Q1 is independently selected from the group consisting of H, branched or unbranched C1-C10 alkyl or C3-C12 cycloalkyl and C2-C4 alkenyl; each L5 is independently selected from the group consisting of halogen, OH, SH, C1-C4 alkyl, C2-C4 alkenyl, or -[OCH2CH2-]nOQ2; wherein n is an integer from 1 to 10, and each Q2 is independently selected from the group consisting of H, branched or unbranched C1-C10 alkyl or C3-C12 cycloalkyl and C2-C4 alkenyl.

The present disclosure provides a battery. The battery includes a positive electrode plate, a negative electrode plate, a separator, and an electrolyte. The negative electrode plate has a porosity of φ in unit of %. The separator has a thickness of t in unit of μm, and a pore size of R in unit of μm. A ratio of a total mass of the electrolyte to a discharge capacity of the battery is N in unit of g / Ah. The electrolyte includes an electrolyte additive. The electrolyte additive includes a sulfate ester compound and a first lithium salt additive. The first lithium salt additive includes an oxalate-containing lithium salt. The sulfate ester compound has a structure represented by Formula I. A mass fraction of the sulfate ester compound in the electrolyte is C in unit of %. The battery satisfies Formula A:0.0⁢1≤φ×N×C1⁢04×t×R≤0.5.Formula⁢ A

The invention discloses an oil-control and anti-dandruff composition and application thereof, and relates to the technical field of daily chemical products. The oil-controlling and anti-dandruff composition comprises polyol, an active component A and an active component B, the active ingredient A is selected from bioflavonoid and / or plankton extract; and the active ingredient B is selected from at least one of zinc gluconate, zinc lactate, zinc PCA, zinc cocoyl alcohol polyether sulfate and zinc hyaluronate. According to the oil-control and anti-dandruff composition, the active ingredient A can effectively reduce sebum secretion and regulate the sebum level; and the active component B has good antibacterial performance, can remove biological membranes, obviously improve oily scalp and enhance scalp barrier. All the components are compounded and can achieve mutual synergistic interaction, bacteriostasis and biofilm disintegration are achieved from the source, long-acting dandruff removal and oil control are achieved, meanwhile, the scalp barrier function is improved, and scalp discomfort is relieved.

The application provides a secondary battery and an electronic device, and belongs to the technical field of energy storage. The secondary battery comprises an electrolyte and a shell; the electrolyte comprises a cyclic sulfate compound and a fluorosulfonylamide compound; the mass content of the cyclic sulfate compound and the fluorosulfonylamide compound is a% and b% respectively based on the total mass of the electrolyte, 0.01≤a≤5, 1≤b≤15; the shell comprises a shell body and a pressure relief assembly; the material of the shell body is a steel shell, the pressure relief assembly comprises a sealing element and a first through hole; the area of the first through hole is c mm 2 , 1≤c≤9; the pressure relief assembly is configured such that when the temperature inside the shell body reaches a threshold temperature, the sealing element of the pressure relief assembly loses the sealing effect, the first through hole is connected to the external environment, the internal pressure of the battery is released, and heat is taken out; the threshold temperature is d℃, 100≤d≤130. Through the above arrangement, the high-temperature cycle performance and the hot box pass rate of the secondary battery can be improved.

The invention provides an electrolyte additive and application thereof, and the electrolyte additive comprises an imidazole sulfonate compound, pentaerythritol bicyclic sulfate and 1, 6-hexamethylene diisocyanate. When the electrolyte additive is applied to an electrolyte, free acid generated by the electrolyte along with storage such as transportation can be inhibited, the stability of the electrolyte is improved, and meanwhile, when the obtained electrolyte is applied to a secondary battery, the film-forming impedance is low, and the high-temperature performance of the secondary battery is improved.

The present invention is a composition comprising a) an aqueous dispersion of polymer particles optionally functionalized with a phosphorus acid monomer and having a z-average particle size as measured using dynamic light scattering in the range of from 50 nm to 500 nm; b) a salt of iodic acid; c) a C8-C10-alkyl phosphate or sulfate; with the proviso that when the polymer particles are not functionalized with the phosphorus acid monomer, the composition further comprises d) a hydrotrope. The composition of the present invention provides a way of preserving a latex against microbial growth in the absence of a biocide.

An aspect of the present invention is a nonaqueous electrolyte energy storage device including: a positive electrode including a positive composite layer containing a transition metal oxide and a boron element; a negative electrode; and a nonaqueous electrolyte containing a sulfuric acid ester compound, in which the content of the boron element in the positive composite layer is 0.03% by mass or more.

The application relates to the field of wear-resistant ceramic materials, in particular to a preparation method of a high-wear-resistant ceramic material for a gas valve plate, wherein ceramic powder is ball milled to obtain slurry, a binder composed of carboxymethyl cellulose and fatty acid modified nanocellulose and a sulfuric acid ester surfactant are added into the slurry, the ball milling is continuously carried out, spray granulation is carried out to obtain composite powder, the composite powder is pressed into a blank, and finally, the blank is sintered in an inert gas atmosphere, the ceramic material prepared by the method has excellent mechanical properties, and has good compression resistance, heat resistance, corrosion resistance and wear resistance; through comparison, it is found that the addition of zirconium oxide, samarium oxide, ytterbium oxide, carboxymethyl cellulose, fatty acid modified nanocellulose and sodium dodecyl sulfate has a positive effect on improving the various properties of the ceramic material.

A method of treating a surface, the method comprising the step of contacting the surface with a composition comprising a polymer, wherein the polymer is obtainable by polymerising a mixture of monomers comprising: (a) a monomer comprising an anionic moiety and an alkenyl group, wherein the anionic moiety is selected from a sulfate ester group, a sulfonic acid group, or a salt thereof; and (b) a monomer comprising a cationic moiety and an alkenyl group; wherein monomer (a) and monomer (b) provide at least 95 wt% of the mixture of monomers.

The invention provides an electrolyte and a battery. The electrolyte comprises a first additive and a second additive, the first additive is a compound with a structure as shown in the following formula, and the second additive comprises a sulfate compound. The electrolyte provided by the invention can obviously improve the high-temperature storage and high-temperature cycle performance of the secondary battery.

The present disclosure belongs to the field for preparation of chitosan oligosaccharide, and particularly relates to a chitosan oligosaccharide sulfate and a preparation method thereof. The method is as follows: adding an equal volume of 1.0%-2.0% by mass of potassium sulfate solution into 2.0%-4.0% by mass of chitosan oligosaccharide hydrochloride solution and evenly mixing to obtain a mixed solution, allowing a molar ratio of amino to sulfate ions in the mixed solution to be 2:1, then adding absolute ethyl alcohol to obtain a chitosan oligosaccharide sulfate suspension, standing, filtering, collecting precipitates, washing, drying and smashing to finally obtain the chitosan oligosaccharide sulfate. This method cleverly utilizes a characteristic that the chitosan oligosaccharide sulfate is difficultly dissolved into 75% ethyl alcohol aqueous solution, while potassium chloride is slightly dissolved into 75% ethyl alcohol aqueous solution, the chitosan oligosaccharide sulfate is obtained using a precipitation method. Moreover, the preparation method used in the present disclosure is simple to operate, economic and environmental-friendly, does not need the use of highly corrosive sulfuric acid, and is friendly to operation staffs, environments and production equipment.

The invention discloses a preparation method of an azo reactive dye, which comprises the following steps: reacting cyanuric chloride with sodium 2, 5-diaminobenzene sulfonate to obtain a first condensate, diazotizing the first condensate, performing acidic coupling on the first condensate and acetyl J acid, performing alkaline coupling on the first condensate and a diazo solution of 6-beta-ethyl sulfuryl sulfate-2-naphthylamine-1-sulfonic acid, and finally performing secondary condensation on the second condensate and nicotinic acid to obtain the azo reactive dye. Reacting to obtain azo reactive dye primary pulp, wherein the structure of the dye is shown in the specification; the prepared dye is bright in color, excellent in solubility, high in storage stability, good in lifting power and good in fixation rate and color fastness.

The present invention relates to: a solid surfactant composition which does not change into a paste even if left in a high-humidity environment such as a bathroom for a long period of time and maintains solidity, and which is free from bleeding of a surfactant liquefied by moisture absorption of a solid detergent on the surface of the solid detergent and has good foaming; and a method for producing the solid surfactant composition. This solid surfactant composition contains the following components (A) to (C). Component (A): a sulfonic acid-type surfactant or a sulfuric acid ester-type surfactant, at least a portion of which is an alkali metal salt. Component (B): an alkaline earth metal. Component (C): an aliphatic alcohol having 16 or more carbon atoms.

The invention relates to the technical field of pharmaceutical preparations, and discloses a doxorubicin and cyclophosphamide liposome compound injection which is prepared from doxorubicin hydrochloride, cyclophosphamide, hydrogenated soybean phosphatidylcholine, cholesterol, polyethylene glycol derivative phospholipid, anhydrous magnesium sulfate, L-arginine and a sucrose octasulfate ammonium solution. Magnesium ions introduced into an inner water phase participate in competitive binding, doxorubicin and sucrose octasulfate are induced to form a loose co-precipitation structure with lattice defects, hydrophilic cyclophosphamide is physically filled and cured by using micro gaps, and efficient encapsulation of non-gradient dependent drugs is realized. Meanwhile, an in-situ pH buffer system is constructed by using L-arginine, protons generated in a drug loading process are neutralized, an internal water phase is maintained in a neutral environment, and acid-catalyzed hydrolysis of cyclophosphamide is effectively inhibited. According to the invention, the double-drug encapsulation efficiency and storage stability of the compound liposome are obviously improved.

Battery comprising: a positive electrode plate, a negative electrode plate, a separator and an electrolyte, wherein: the negative electrode plate has a porosity φ in the unit %; the separator has a thickness t in the unit µm and a pore size R in the unit µm; a ratio of the total mass of the electrolyte to the discharge capacity of the battery N in the unit g / Ah; and the electrolyte comprises an electrolyte additive, wherein the electrolyte additive comprises a sulfate ester compound and a first lithium salt additive, wherein the first lithium salt additive comprises an oxalate-containing lithium salt and the sulfate ester compound has a structure represented by formula I: Formula I, wherein: R1 and R8 are each independently selected from hydrogen or C1 to C5 hydrocarbyl; R2, R3, R4, R5, R6, and R7 each independently from C1- to C3-alkylenes, C1- to C3- alkoxy, an oxygen atom, or are selected; and n is an integer in the range of 0 to 4, and a mass fraction of the sulfate ester compound in the electrolyte C in the unit %; and the battery corresponds to formula A: 0.01 ≤ φ × N × C 10 4 × t × R ≤ 0.5

The present invention provides a method for sterilizing bacteria present in a biofilm, and a liquid composition used therein, which exhibits excellent bactericidal properties for bacteria present in the biofilm. [Solution] A method for killing bacteria present in a biofilm, comprising contacting the biofilm with a liquid composition containing the following components (a) and (b), and water. (a) Components: Quaternary ammonium salt having one long-chain alkyl group represented by general formula (a1) (b) Components: Compounds having an aliphatic hydrocarbon group with 8 to 18 carbon atoms, and a group selected from a sulfate ester group, a sulfonic acid group, and salts thereof.