38 results about "Hexamethyldisiloxane" patented technology

The utility model relates to the field of chemical equipment, in particular to a hexamethyldisiloxane mixing reaction kettle, which comprises a supporting seat and a mixing kettle, the supporting seat is used as a supporting structure of the mixing kettle, a sealing cover plate is arranged at the top of the mixing kettle, two feeding pipes are arranged at the top of the sealing cover plate and are respectively used for adding a silane precursor and water, and the sealing cover plate is used for sealing the mixing kettle. Each feeding pipe is provided with a valve, a motor is mounted at the bottom in the mixing kettle, and an output shaft of the motor is connected with a stirring paddle. A set of high-precision temperature control system is integrated by the thermal insulation shell, the temperature controller, the circulating pipe, the temperature detector and the controller, temperature change can be quickly responded by utilizing the temperature controller and the circulating pipe, the temperature in the kettle is ensured to quickly reach and be stabilized at a set value, the influence of temperature fluctuation on reaction is avoided, and the temperature in the kettle is continuously monitored by utilizing the temperature detector, so that the reaction time is shortened. And data are fed back to the temperature controller in real time, so that closed-loop control of the temperature is realized, the stability and consistency of reaction conditions are ensured, and the product quality is improved.

This application relates to the field of siloxane preparation, specifically disclosing a method for preparing hexamethyldisiloxane, comprising the following steps: A) Concentrated hydrochloric acid and trimethylchlorosilane are sequentially fed into a hydrolysis reactor for hydrolysis to obtain hydrolysis products; the hydrolysis reactor includes a stirred tank, the bottom wall of which is provided with elastic hollow spheres; B) The obtained hydrolysis products are fed into a heat exchanger, then into a gas-liquid separation tower, and finally into a purification condenser; C) The mixture of hexamethyldisiloxane and concentrated hydrochloric acid obtained from the bottom of the gas-liquid separation tower and the mixture of hydrochloric acid and hexamethyldisiloxane obtained from the bottom of the condenser are fed into a separator for separation; the upper oily liquid is separated into a hexamethyldisiloxane washing tank, and after washing, crude hexamethyldisiloxane is obtained and fed into a hexamethyldisiloxane intermediate tank. The preparation method of this application has the advantage of improving the production efficiency and yield of hexamethyldisiloxane.

The application discloses a kind of polymer resin for photoresist, negative photoresist and recycling method.The preparation method of polymer resin is: using functional polycarbonate, p-acetyl oxystyrene, initiator, star-shaped RAFT agent to prepare polymer resin.Using 2-benzyl (methyl) amino-9H-thioxanthene-9-ketone, 3-chloropropyl triethoxysilane, potassium carbonate, triethoxysilane compound and 1,1,1,1,3,3,3-hexamethyl disiloxane to prepare photo initiator.Photolithography is compounded by polymer resin, photo initiator and additive, solvent.The negative photoresist has good thermal stability, and can be recycled by specific filter film, and the recovery rate is 79-83%.The application combines chain free volume design and mobility control, and improves the glass transition temperature of material;And photoresist waste liquid can be recycled.The negative photoresist can be used in wafer level advanced packaging, micro-nano processing, high-end optics and other fields.

The invention belongs to the technical field of aerogel preparation, and relates to a method for preparing a silicon dioxide aerogel felt through catalysis of acid ion exchange fibers. The method for preparing the silicon dioxide aerogel felt through catalysis of the acid ion exchange fibers comprises the steps that an aerogel base material fiber felt and an ion exchange fiber felt are stacked and rolled into a roll shape, and the roll shape is coaxially arranged on a reel arranged in a reaction kettle; injecting an aerogel precursor prepared in advance into the reaction kettle until the coiled material base material is immersed to form a gel aerogel fiber felt; immersing the fiber felt in a hexamethyldisiloxane hydrophobic modification liquid, heating and aging for a certain time, and discharging the modification liquid; and heating and drying the aerogel fiber felt by hot nitrogen air blast to obtain the finished product silicon dioxide aerogel felt. Through an acid ion exchange fiber catalysis process, the reaction condition is mild, the reaction rate is effectively improved, the production period is shortened, and the catalyst does not need to be separated, can be recycled for multiple times, is pollution-free and environment-friendly, and has a relatively large aerogel mass production prospect.

The invention discloses a resin material for 3D printing and a preparation method thereof, and relates to the technical field of photosensitive resin materials. When the resin material for 3D printing is prepared, 3-isocyanate propyl methyl dimethoxy silane is blocked by p-nitrophenol, so that blocked 3-isocyanate propyl methyl dimethoxy silane is prepared; the preparation method comprises the following steps: carrying out condensation on blocked 3-isocyanate group propyl methyl dimethoxy silane, 3-mercaptopropyl methyl dimethoxy silane and hexamethyldisiloxane, so as to prepare blocked isocyanate group mercapto silicone oil; the preparation method comprises the following steps: loading a resorcinol bis (diphenyl phosphate) flame retardant on glass flakes modified by silane to prepare flame-retardant modified glass flakes; the preparation method comprises the following steps: reacting epoxy acrylate, blocked isocyanate sulfydryl silicone oil, acryloyl morpholine and a photoinitiator to prepare photosensitive resin, and compounding the photosensitive resin with flame-retardant modified glass flakes to prepare the resin material for 3D printing. The prepared resin has high mechanical property, flame retardant property and thermal stability.

Various exemplary devices, systems, and methods for multi-layer anti-stick coatings for surgical tools are provided. In general, a method of manufacturing a surgical tool includes forming, using plasma enhanced chemical vapor deposition with hexamethyldisiloxane as a precursor material, a first coating on a conductive tissue treating surface of the end effector and a second jaw component of the end effector, the first coating comprising a first material, wherein the first material is a first silicone material, and applying a second coating on top of the first coating on the first jaw component and the second jaw component, the second coating comprising a second material, wherein the coatings are effective to prevent tissue sticking to the jaws during an electrosurgical sealing procedure.

The invention provides a method for preparing aerogel powder from waste gel, and belongs to the technical field of aerogel material preparation. The method comprises the following steps: by taking waste wet gel generated when an aerogel product is produced from an organic silicon source as a raw material, adding an ammonium fluoride solution, stirring and uniformly mixing, adding hexamethyldisiloxane, n-butyl alcohol and hydrochloric acid for modification, cooling and standing after modification, and separating out an upper-layer gel solution; stirring and cleaning with pure water, standing to obtain washing water, adding a sodium hydroxide aqueous solution, stirring and cleaning, and standing to obtain alkali washing water; and drying through closed-loop spray drying equipment to obtain the aerogel powder. According to the method, resource utilization of the waste gel is achieved, the production cost of the aerogel powder is reduced, environmental pollution is reduced, and the obtained aerogel powder has good hydrophobicity and heat insulation performance.

The invention discloses tris (trimethylsilyl) phosphate and a preparation method thereof, and belongs to the field of chemical synthesis. The invention relates to a preparation method of tris (trimethylsilyl) phosphate, in particular to a preparation method of tris (trimethylsilyl) phosphate, which comprises the following steps: hexamethyldisiloxane and phosphorus pentafluoride are subjected to heating reaction under a stirring condition to obtain tris (trimethylsilyl) phosphate, and the molar ratio of hexamethyldisiloxane to phosphorus pentafluoride is (5-10): 1. Phosphorus pentachloride is replaced with phosphorus pentafluoride, and due to the fact that fluorine atoms are small in radius and large in electronegativity, phosphorus is high in electropositivity and small in steric hindrance, phosphorus pentafluoride can react with hexamethyldisiloxane more easily, a catalyst is not needed, the cost of tris (trimethylsilyl) phosphate can be greatly reduced, and the yield of tris (trimethylsilyl) phosphate is high.

The invention relates to the technical field of organic silicon materials, in particular to an efficient synthesis process of high-hydrogen-content silicone oil. The process comprises the following steps: firstly, mixing and filtering methyl hydrogen ring body and hexamethyldisiloxane in an inert atmosphere to prepare a refined raw material solution, and then dispersing a special and magnetically separable sulfonic acid carbon-silicon composite solid acid catalyst into part of the raw material solution to form a stable suspension; and pumping the mixture and the residual raw material solution into a micro-channel reactor for ring-opening polymerization and equilibrium reaction, and then carrying out three-stage gradient vacuum low-temperature removal purification. According to the process, Si-H bond side reaction is effectively inhibited, efficient magnetic separation and recovery of the catalyst are achieved, and the obtained product is high in hydrogen content, narrow in molecular weight distribution, light in color, good in stability and suitable for high-end application.

The application discloses a recycling method of reflux condensate in liquid silicone rubber base glue preparation, and water in the reflux condensate generated in the liquid silicone rubber base glue preparation process is removed first; the reflux condensate after water removal can be used for base glue preparation instead of part of silazane, and can also be added into an enamel reaction kettle, concentrated sulfuric acid is added, the temperature is increased to 50-100 DEG C, and after 1-5 hours of reaction, the sulfuric acid is removed by layering, the sulfuric acid can be reused to base glue tail gas absorption, and the remaining reflux condensate is washed to neutral, and hexamethyldisiloxane can be obtained by rectification. The effective recycling of the reflux condensate is solved, and cost reduction and benefit increase are realized.

The application belongs to the technical field of compound preparation, and particularly relates to a preparation method of an alkali metal salt of an oxalate chelate structure, at least comprising the following steps: mixing tris(trimethylsilyl) phosphate, an oxalate and a phosphorus-containing or boron-containing fluorine compound in a first organic solvent, stirring and heating to obtain lithium phosphate, trimethyl fluorosilane gas, and difluorobisoxalate phosphate or difluorooxalate borate, filtering the reaction solution to obtain lithium phosphate solid and a difluorobisoxalate phosphate solution or a difluorooxalate borate solution; adding a second organic solvent for recrystallization after concentration; and obtaining difluorobisoxalate phosphate or difluorooxalate borate solid after filtration, and drying the solid under reduced pressure to obtain a finished product. The process is simple, and the cost is low. By-products lithium phosphate, potassium fluoride and hexamethyldisiloxane can be directly sold as products after purification. Therefore, the application has an atomic utilization rate close to 100%, no invalid waste, less three-waste emissions, and is friendly to the environment.

The invention provides the preparation method of the heat-resistant methyl phenyl silicone oil, the process is simple and convenient, the arrangement of methyl phenyl structural units is uniform, and the content of ethyoxyl is low. The preparation method comprises the following steps: carrying out partial monomer modification on methylphenylsiloxane hydrolysate by adding a metal compound to form a stable Si-O-M bond (M is a metal component), carrying out two-stage equilibrium reaction on methylphenylsiloxane condensate and hexamethyldisiloxane, supplementing an alkaline catalyst, deionized water and a polar solvent in the second-stage reaction, and carrying out polymerization reaction to obtain the high-molecular-weight polydimethylsiloxane. The hydrolysis of residual alkoxy and the condensation of hydroxyl are promoted, the arrangement of a methyl phenyl structure unit and the precise control of an impurity end-capping group are synergistically realized, and the thermal stability of the methyl phenyl silicone oil is greatly improved.

The invention discloses a method for preparing a nano multi-layer composite film structure Fe / SiO2 material by an organic release film method, which comprises the following steps of: firstly, heating pentacarbonyl iron and hexamethyldioxane until the pentacarbonyl iron and the hexamethyldioxane are evaporated, and alternately depositing on a soluble film substrate by a chemical vapor deposition method under a vacuum condition to form a nano multi-layer Fe / SiO2 composite film; and dissolving the soluble film substrate by using a solvent, so that the nano multilayer Fe / SiO2 composite film is stripped from the substrate, and carrying out ultrasonic crushing, centrifugal separation and drying to obtain the nano multilayer composite film structure Fe / SiO2 material. The process adopted by the invention is a continuous production process, the total thickness, the number of composite layers and the thickness of each layer of the prepared nano multi-layer composite film structure Fe / SiO2 material can be accurately controlled, and the nano multi-layer composite film structure Fe / SiO2 material has a better absorption effect on microwaves in a frequency range of 2-18GHz.

The invention provides functional end hydrogen-containing silicone oil with high Si-H activity and a production process of the functional end hydrogen-containing silicone oil. The hydrogen-terminated silicone oil is prepared from the following components: 78 to 85 percent of octamethylcyclotetrasiloxane, 0.15 to 0.45 percent of a metal organic framework loaded diacid catalyst, 4 to 8 percent of an amino functionalized hydrogen-containing end-capping reagent, 2.5 to 6 percent of a polyether-siloxane block regulator, 1 to 3 percent of hexamethyldisiloxane, 1.5 to 4 percent of absolute ethyl alcohol and 0.3 to 0.8 percent of a weakly alkaline adsorbent. According to the invention, the hydrogen-terminated silicone oil is based on octamethylcyclotetrasiloxane, has a stable polydimethylsiloxane main chain skeleton, has a controllable molecular chain length, contains amino groups which can react with carboxyl and epoxy groups, and has wide functions and application scenes; the molecular weight distribution is easy to regulate and control, the polyether-containing chain segment has good hydrophilicity, and the block structure improves the high and low temperature resistance.

The invention discloses a preparation method of an organic silicon defoaming composition, which comprises the following steps: stirring and mixing hydrogen-containing polysiloxane, MQ silicon resin and silicon dioxide to obtain a pre-dissolved substance, adding a catalyst, uniformly mixing, then adding hexamethyldisiloxane, heating to react to obtain a branched polysiloxane intermediate, adding hydroxyl-terminated polysiloxane and a base catalyst into the branched polysiloxane intermediate, and reacting to obtain the organic silicon defoaming composition. And adding silicon dioxide after stirring reaction, keeping the temperature at 100-160 DEG C, stirring, and finally cooling to room temperature, thereby obtaining the product. According to the method, a pre-reaction-secondary reaction step-by-step process is adopted, so that the viscosity increase of a system can be effectively controlled, the problem of sudden viscosity increase caused by rapid condensation of hydroxyl and MQ resin in a traditional one-step method is avoided, and the defoaming speed and the lasting foam inhibition performance of the prepared defoaming composition are remarkably improved. The defoaming agent prepared by the aid of the defoaming agent has excellent defoaming and foam-inhibiting performance in anionic and nonionic systems, has good wetting, spreading and leveling performance and is particularly suitable for being applied to the field of metal processing.

This invention provides a filter membrane and its preparation method. The preparation method includes the following steps: placing a porous filter membrane substrate in an environment containing plasma and a precursor, and performing plasma treatment to obtain the filter membrane; wherein the precursor includes at least one selected from hexamethyldisiloxane, perfluorooctyltriethoxysilane, pentane, ethylene, toluene, perfluorohexane, styrene, divinylbenzene, hexamethyldisiloxane, tetramethylsilane, tetraethoxysilane, tetrafluoroethylene, and hexafluoropropylene. The filter membrane obtained by this preparation method can significantly reduce the swelling rate and simultaneously increase the permeation flux in organic solvents, achieving precise molecular weight cutoff.

This invention discloses a low-viscosity, high-flash-point hyperbranched fluorosilicone oil, its preparation method, and its insulating medium, belonging to the field of organosilicon polymer materials and electrical insulation technology. The branched fluorosilicone oil is polymerized from branched monomers, hexamethyldisiloxane, and siloxane cyclic compounds; the siloxane cyclic compounds are a mixture of dimethylsiloxane and fluorinated siloxane cyclic compounds. The above components are reacted at 80–120°C in the presence of a catalyst to obtain the hyperbranched fluorosilicone oil. This hyperbranched fluorosilicone oil has a three-dimensional molecular structure, low viscosity, a flash point above 300°C, high breakdown voltage, and an insulation performance retention rate greater than 85% after multiple breakdowns. This invention also discloses the application of this hyperbranched fluorosilicone oil as an insulating medium in power equipment, including at least one of transformers, reactors, instrument transformers, and cable terminals. The hyperbranched fluorosilicone oil provided by this invention is particularly suitable for electrical insulation applications requiring high fire resistance and long-term operational stability.

The utility model relates to hexamethyl disiloxane purification field especially relates to a kind of water content treatment devices of hexamethyl disiloxane removal, including filter box, support assembly, adsorption cylinder and conveying assembly, filter box is set in the upper portion of rectifying cylinder, the upper portion of rectifying cylinder is equipped with inlet, filter box is connected with rectifying cylinder through inlet, first filter plate is fixedly installed in the filter box, first filter plate is located in the upper portion of inlet, first filter plate is obliquely arranged, second filter plate is fixedly installed in the filter box, second filter plate is located below first filter plate, feeding port is equipped in the upper portion of filter box;The utility model is installed by filter box first filter plate and second filter plate, filter material by first filter plate, and the impurity is guided to the side of second filter plate to facilitate cleaning, the material remaining in impurity can be added into rectifying cylinder by second filter plate through second filter plate, reduce waste.

The invention discloses a preparation method and application of a glass fiber powder-silicon dioxide aerogel composite material, and belongs to a preparation method of an aerogel composite material. Mixing tetraethyl orthosilicate with absolute ethyl alcohol to obtain a mixed solution A; concentrated sulfuric acid and absolute ethyl alcohol are mixed to obtain a mixed solution B, and a mixed solution C is obtained; adding water into the mixed solution C for dilution and stirring to obtain a polyoxysiloxane precursor; the preparation method comprises the following steps: uniformly mixing a polyoxysiloxane precursor, a glass fiber powder ethanol solution and deionized water, and adding hexamethyldisiloxane and an ethanol solution of ammonia to obtain mixed gel; performing aging treatment on the mixed gel, immersing the aged gel by using a hydrochloric acid ethanol solution and hexamethyldisiloxane, and drying to obtain the glass fiber powder-silicon dioxide aerogel composite material. The prepared aerogel composite material has good hydrophobicity, erosion and permeation of water to the composite material can be relieved, the stability of the material is kept in a humid environment, and the service life of the material is prolonged.

The invention belongs to the field of high polymer materials, and particularly provides a synthesis method of low-cost hydrogen-containing MQ silicon resin. The method comprises the following steps: by taking water glass as a silicon source, hexamethyldisiloxane and hydrogen-containing double end sockets as organic silicon monomers and an alcohol solvent as a reaction medium, carrying out cohydrolysis and condensation under the catalysis of acid, washing with water, and removing low-molecular substances under reduced pressure, thereby obtaining the white powdery hydrogen-containing MQ silicon resin. According to the method, the raw material cost is remarkably reduced, the process is simple, the yield is high, the product solubility is good, the hydrogen content is controllable in the range of 0.1%-0.7%, and the method has a good industrial application prospect.

An acrylate-modified silicone oil, its preparation method, and its application in the preparation of photocurable release agents are disclosed. This invention belongs to the field of organosilicon technology. The acrylate-modified silicone oil of this invention comprises the following raw materials in parts by weight: 5-15 parts of 3-(diethoxymethylsilyl)propyl 2-acrylate, 80-100 parts of a mixture of dimethylcyclosiloxanes, 0.06-1 part of hexamethyldisiloxane, 0.03-1 part of an acid solution, and 10-30 parts of a dehydrating agent. This invention uses fewer types of raw materials, and the synthesized acrylate-modified silicone oil has a simple molecular structure and does not contain functional groups with special structures. This invention can synthesize a high-viscosity silicone oil with a high acrylate content by using dehydrating agents such as 4A molecular sieves in the raw materials.

The invention discloses a rapid detection method for determining hexamethyldisiloxane in soil, which comprises the following steps: S1, sample collection and preservation: collecting a soil sample according to the regulation of HJ / T 166, collecting 3 parallel samples by using a 40mL brown sample bottle, collecting a proper amount of sample into the sample bottle by using a sampler during sampling, and storing the sample in the sample bottle; quickly removing samples adhered to threads and outer surfaces of the sample bottles, sealing the sample bottles, refrigerating and transporting the sample bottles to a laboratory, preserving the sample bottles in a dark place at 4 DEG C or below, and completing analysis within 7 days; the method comprises the following steps: S1, sample pretreatment: measuring the moisture content of 5g of soil sample; weighing and recording a purging bottle filled with a sample, and putting the purging bottle on a purging and trapping device for detection; s2, preparing a standard curve: preparing hexamethyldisiloxane standard series solutions by taking methanol as a solvent; according to the method, the detection efficiency is high, complex extraction and purification steps are not needed in sample pretreatment, automatic detection is achieved through combination of purge-trap and chromatography-mass spectrometry, the detection period of a single sample is smaller than or equal to 30 min, and the requirement for rapid detection of large-batch samples is met.

The invention discloses epoxy modified MQ silicon resin, which comprises an M unit and a Q unit, the M unit comprises hexamethyldisiloxane and a silane coupling agent, the mass ratio of hexamethyldisiloxane to the Q unit is 0.5-0.9, and the mass ratio of the silane coupling agent to the Q unit is 0.1-0.3. The invention also discloses a preparation method of the epoxy modified MQ silicon resin, which comprises the following steps: mixing hexamethyldisiloxane, a Q unit component, a silane coupling agent, absolute ethyl alcohol, deionized water and hydrochloric acid according to a mass ratio of (0.5-1.5): (2-6): (0.5-1.5): (0.2-0.6): (0.8-2.4): (2-6), and then carrying out stirring polymerization. The invention also discloses a solid electrolyte. The solid electrolyte comprises the following active ingredients: carbonic ester electrolyte; a lithium salt; a polymer fiber skeleton; an ionic liquid; and an organic solvent. The invention further discloses a preparation method of the solid electrolyte.

The invention discloses a self-cleaning wash-free fabric and a preparation method thereof, and relates to the technical field of fabrics. According to the invention, malic acid is utilized to connect each fiber, so that impurities are not easy to enter the fabric, and then malic acid reacts with maleic anhydride and sodium hydrogen sulfite, so that a sulfonic acid group-metal ion bond is formed on a side chain, the antistatic performance is improved, and the fabric is prevented from being stained with dust; the preparation method comprises the following steps: firstly, preparing a modified cotton fabric, then reacting the modified cotton fabric with 2-hydroxylauric acid, R-aminoethyl-B-aminopropyl trimethoxy silane, perfluorooctyltrimethoxy silane and hexamethyldisiloxane, and polymerizing to obtain the modified cotton fabric which has good waterproof and oil-proof properties; 3-amino-4-nitrobenzaldehyde and 3, 4-diamino propiophenone are utilized to form a benzotriazole group, the anti-ultraviolet effect of the fabric is effectively improved, the benzotriazole group, hydroxylamine hydrochloride and 2-bromoethanol generate an oxime ether compound, the growth of bacteria of the fabric is inhibited, epoxy resin is modified and then coated on the surface of the modified cotton fabric, the epoxy resin and the modified cotton fabric are combined through chemical bonds, and the anti-ultraviolet effect of the fabric is improved. The antibacterial property of the fabric is effectively improved.

The invention discloses a scheelite combined collecting agent and a preparation method and application thereof, and belongs to the technical field of mineral processing. The combined collecting agent comprises the following components in percentage by mass: 2%-5% of sucrose laurate, 85%-92% of C16-C18 fatty acid salt and 6%-10% of hexamethyldisiloxane. The combined collecting agent is applied to flotation of scheelite, and efficient recovery of scheelite can be achieved through closed-loop flotation of one-time roughing, three-time refining and two-time sweeping. According to the combined collecting agent, the problem that a traditional fatty acid collecting agent is poor in solubility is solved, the combined collecting agent is simple in preparation process, good in collecting performance and selectivity, good in dispersity and solubility and good in environmental protection property, and the grade and the recovery rate of scheelite concentrate can be remarkably improved.

Various exemplary devices, systems, and methods for anti-stick coatings for surgical tools are provided. In general, a method of manufacturing a surgical tool includes forming, using plasma enhanced chemical vapor deposition with hexamethyldisiloxane as a precursor material, a coating on a conductive tissue treating surface of an end effector, the coating comprising a silicone material, wherein the coatings are effective to prevent tissue sticking to the jaws during an electrosurgical procedure.

The invention discloses a preparation method of a composite coating with a micro-nano structure and liquid-like characteristics, and belongs to the technical field of surface functional coatings. According to the method, in the same vacuum cavity, a plasma enhanced chemical vapor deposition process is adopted for continuously executing the following steps that firstly, tetramethylcyclotetrasiloxane serves as a first precursor, and a rough layer with a nano structure is deposited on the surface of a substrate; then, hexamethyldisiloxane and oxygen are used as reaction gases, and a transition layer is deposited on the surface of the rough layer; and finally, by taking hexamethyldisiloxane as a second precursor, depositing on the transition layer to form the liquid-like functional layer. The invention aims to solve the technical problems of complex process, poor durability and performance upper limit of the existing hydrophobic / ice-resistant coating, and achieves the technical effects of simplifying the preparation process, improving the mechanical durability of the coating and synergistically enhancing the lyophobic and anti-icing performance.

This invention discloses an organofluorosilicone emulsion deepening agent, which is made from the following raw materials in parts by weight: 3-9 parts of hexamethylcyclotrisiloxane, 2-4 parts of trifluoropropylmethylcyclotrisiloxane, 1-3 parts of hexamethyldisiloxane, 3-9 parts of vinyldisiloxane, 1-3 parts of emulsifier, 0.1-0.6 parts of catalyst, and 2-6 parts of acrylate monomer. The organofluorosilicone monomer is prepared by ring-opening reaction of hexamethylcyclotrisiloxane, trifluoropropylmethylcyclotrisiloxane, and hexamethyldisiloxane under the action of trifluoromethanesulfonic acid catalyst. Then, the emulsifier is used to emulsify the monomer to obtain organofluorosilicone emulsion I. This invention has a simple preparation method, can reduce dye affinity, and inhibit dye migration. Furthermore, by changing the amount of emulsifier, the particle size of the emulsion can be adjusted, and emulsions of different particle sizes can be mixed together to form a film with different roughness, thus achieving a deepening effect.

This invention provides a comprehensive method for preparing vinyl sulfate and the vinyl sulfate obtained therefrom. The method includes: mixing bis(trimethylsilyl)sulfate, alkyl diol, a metal halide catalyst, and a first solvent; performing a first reaction to obtain catalyst residue, trimethylsilanol, and vinyl sulfate; and then reacting the catalyst residue with trimethylsilanol to recover hexamethyldisiloxane, which is used as a raw material for preparing bis(trimethylsilyl)sulfate. This comprehensive method provides vinyl sulfate, and the catalyst can be used in two ways, generating the byproduct hexamethyldisiloxane, which can be recycled and used as a raw material to react with sulfuric acid to prepare bis(trimethylsilyl)sulfate. This achieves material recycling, significantly reduces economic costs, greatly improves atom economy and the greenness of the process, and has certain feasibility in industrial production.

The utility model discloses a hexamethyldisiloxane oil-water phase separator, relates to separator technical field, the hexamethyldisiloxane oil-water phase separator comprises a box body, one side of the box body is fixedly connected with a feed pipe, the feed pipe is communicated with the inside of the box body, one side of the box body close to the feed pipe is fixedly connected with a water inlet pipe, and the water inlet pipe is communicated with the inside of the box body. An electric rod is fixedly installed on the surface of the box body, a push plate is fixedly connected to the output end of the electric rod, a storage groove is formed in the box body, the push plate is slidably connected with the inner wall of the storage groove, a discharging port is formed in the inner wall of the storage groove, and a discharging pipe is fixedly connected to the side, away from the electric rod, of the box body. The discharging pipe is communicated with the interior of the box body, through the structure, when the push plate descends, the rack is driven to be meshed with the gear, then the wire winding wheel is driven to rotate, the wire rope is tightened, meanwhile, the scraping ring is driven to slide upwards, and the spring releases elastic force to drive the scraping ring to reset.