203 results about "Fluorosilicone oil" patented technology

The invention relates to a high-efficiency antifoaming agent which comprises the following raw materials based on parts by weight: 10-45 parts of simethicone, 2-10 parts of fluorosilicone oil, 0.5-3 parts of hydrophobic white carbon black, 5-25 parts of polyether-modified polysiloxane emulgator, 100-200 parts of deionized water and 0.5-1 part of thickening agent. The antifoaming agent takes composition of the simethicone and the fluorosilicone oil as a main antifoaming active ingredient; and after the fluorosilicone oil is added, the surface tension of an antifoaming agent system can be reduced, and the antifoaming and foam-inhibiting performances can be improved. According to the polyether-modified polysiloxane emulgator, not only can the antifoaming active ingredients be emulsified, but also the effect enhancing action can be achieved due to the fact that the high-efficiency antifoaming agent further has good antifoaming ingredients. The antifoaming agent is high in antifoaming capacity, long in foam-inhibiting time, wide in application range, capable of being applied to various foam systems, and suitable for antifoaming and foam-inhibiting under severe conditions, i.e. high acid-base, high temperature and the like.

The invention provides a formula and a preparation method of an organosilicon release agent with ultra-light release force. Vinyl silicone oil, methyl fluorosilicone oil and amino silicone oil are respectively used as a main agent, a light stripping agent and an anti-migration agent and are matched with other materials to obtain the organosilicon release agent; an organosilicon release film with ultra-light release force is obtained by coating a polymer film (PET, PP, PE, PI and the like) with the organosilicon release agent, the release force of the organosilicon release film is greatly reduced, a high residual rate is ensured, and the release film surface obtained by the formula has a film surface effect with uniform color. The product can meet the requirement for ultra-light release force of a release film on the market, and the application field of a traditional organosilicon release agent is further widened.

The invention discloses long-chain alkyl phenyl fluorosilicone oil and a preparation method thereof. The preparation method comprises the following steps: under the protection of inert gas, a self-made polyfunctional group substituted hybrid siloxane ring body is used as a reaction raw material, a corresponding end-capping reagent is added, and a strong acid or strong base ring-opening reaction is carried out to prepare high-molecular-weight long-chain alkyl phenyl fluorosilicone oil. The preparation method is low in cost and mild in reaction condition, the molecular structure and organic group content of the product are easy to control, the organic group in the synthesized product is more uniform in distribution, the synthesized product is low in viscosity and good in heat resistance, and the lubricating property requirements within a wide temperature range are met; at the same time, the long-chain alkyl phenyl fluorosilicone oil can be used as an additive and used in a compounding manner with the synthetic oil or mineral oil, so that the lubricating properties of the synthetic oil or mineral oil are improved.

The invention relates to the field of liquid fluorosilicone rubber, in particular to an addition type liquid fluorosilicone rubber composition and a preparation method thereof. The liquid fluorosilicone rubber is prepared from the following components in percentage by weight: 100 parts of vinyl fluorosilicone oil, 70 to 120 parts of mercaptopyl fluorosilicone oil, 5 to 10 parts of a photoinitiator, 0 to 100 parts of filler, high vinyl fluorosilicone oil, and 0 to 15 parts of an auxiliary agent. The vinyl fluorosilicone oil and the mercaptopyl fluorosilicone oil provided by the invention are irradiated with ultraviolet light by the photoinitiator, and are subjected to addition and crosslinking to obtain the liquid fluorosilicone rubber. The method provided by the invention is simple, does not need to be heated, and does not need to use expensive precious metal catalysts, and the liquid fluorosilicone rubber having different oil resistance can be obtained by adjusting the content of trifluoropropyl group in the fluorosilicone oil.

The invention belongs to the technical field of preparation of sealants, and relates to a high-temperature-resistant fluorinated polysiloxane sealant for sealing an integral fuel tank of an airplane. The high-temperature-resistant fluorinated polysiloxane sealant is prepared from a component A and a component B. The component A is prepared from vinyl end capped liquid fluorinated silicone rubber, filler, a heat resisting agent, a coupling agent, H containing fluorosilicone oil and methyl fluorosilicone oil. The component B is prepared from a complex of platinum and siloxane and an inhibitor. According to the fluorinated polysiloxane sealant for sealing the integral fuel tank of the airplane, the temperature resisting grade of the integral fuel tank sealant is improved, the sealing effect is guaranteed, and the requirement for sealing the integral fuel tank of the high-speed airplane is met.

The invention discloses fluorosilicone oil and preparation method of the fluorosilicone oil. The fluorosilicone oil has ether and silicon bonds, its fluorocarbon chain is C9 branched chain or C6 straight chain, and the silicone part is hydroxy-containing organic silicon oligomer. The method is simple, environmentally friendly, and easy to realize. The fluorosilicone oil prepared by introducing long-chain fluorohydroxy to silicone molecular structure combines the properties of silicone and fluorocarbon, not only maintains the inherent excellent high and low temperature resistance and viscosity-temperature property of silicone oil, but also improves waterproof performance, oil resistance and solvent resistance, and is endowed with special properties.

The invention discloses a modified polypropylene material. The modified polypropylene material comprises, by weight, 80-140 parts of polypropylene, 30-40 parts of a styrene-butadiene-styrene block polymer, 20-30 parts of polyurethane resin, 5-10 parts of hydroxyl-terminated hyperbranched polyester, 8-15 parts of chlorinated polyethylene, 1-2 parts of iron powder, 3-8 parts of fluorosilicone oil and 1-3 parts of an antioxidant. The polyurethane resin and the hydroxyl-terminated hyperbranched polyester added to raw materials are blended with the polypropylene and the styrene-butadiene-styrene block polymer to make the modified polypropylene material have improved wear resistance, ageing resistance and toughness, and the addition of the chlorinated polyethylene and the iron powder makes the modified polypropylene material have good sound insulation performance, so the modified polypropylene material can be used in the building field as a sound insulation assisting material of doors and windows, and the use of the modified polypropylene material is developed.

The invention discloses a wear-resistant fireproof modified coating for a building interior wall. The wear-resistant fireproof modified coating for the building interior wall is prepared from organosilicone-modified epoxy acrylate, vinyl acetate homopolymer emulsion, pure acrylic emulsion, styrene-acrylate copolymer emulsion, silica sol, nano-zinc borate, nano-magnesium hydroxide, sepiolite, expanded vermiculite, expanded perlite, wood fibers, hollow glass microspheres, talcum powder, aluminum tripolyphosphate, nano-barium sulfate, fluorosilicone oil, sodium hexametaphosphate, dimethylbenzene, propylene glycol, an organosilicon defoamer, hydroxyethyl cellulose, a polyurethane thickener, a titanate coupling agent NDZ-201, nonylphenol polyoxyethylene ether and water. The coating for the interior wall has excellent wear resistance and fireproofness.

The application provides anti-doodling paint and a preparation method thereof. The anti-doodling paint provided by the application is prepared from the following components: modified organic-inorganichybrid resin obtained by modifying an organosilicon material with hydroxyl-fluorosilicone oil, titanate, nano-titanium dioxide, a nano-cerium oxide, a dispersant, an antifoaming agent and a couplingagent; a film formed by the anti-doodling paint is high in transparency, excellent in low surface energy performance, good in anti-doodling effect and excellent in stain resistance, has an enhanced anti-corrosion effect, and has a good photocatalytic decomposition effect on oil stain bonded to the film formed by the paint. By adopting the preparation method of the anti-doodling paint, the anti-doodling paint with high transparency, good anti-doodling effect and excellent stain resistance can be obtained.

The invention discloses a preparation method of a microporous molecular sieve filled solvent resistant composite film. The preparation method comprises the following steps: preparing fluorosilicone oil, a microporous molecular sieve, a crosslinking agent, a catalyst and a solvent into a film casting solution, uniformly coating the film casting solution on a base film by using a solvent resistant ultra-filtration film as the base film, further heating to enable the film casting solution to deeply crosslink with the base film after the solvent is evaporated and solidified so as to obtain the microporous molecular sieve filled solvent resistant composite film. Through the composite film prepared by using the method disclosed by the invention, the molecular sieve is uniformly dispersed in a separation layer, and meanwhile, the separation layer is tightly combined with a support layer; the composite film has good swelling resistance in the organic solvent, and is excellent in separation effect and high in stability when being used for recycling low-molecular weight solvent from an oil mixture, and the separation performance can be stably maintained in long-term operation.

The invention discloses a preparation method of a bionic super-lubricating composite anti-corrosion coating with a self-restoration function. A micro-arc oxidation (MAO) film and a corrosion inhibition particle intercalated lamellar hydroxide (LDH) film are prepared on the surface of a magnesium-aluminum alloy, fluorine-containing silicone oil is injected, and therefore the functions such as surface super-lubricating and coating restoration are achieved. In the disclosed composite coating, WO4<2->, MoO4<2-> and other corrosion inhibition particles are intercalated into an MAO generated magnesium-aluminum lamellar hydroxide (MgAl-LDH) film, the corrosion inhibition particles mixed in intercalation can be released in a corrosive medium containing Cl<-> in a response manner, inspersed Cl<-> is captured through anion exchange, corrosive anions are released, and self-restoration of the corrosion resistance of the coating is achieved. Meanwhile, the fluorine-containing silicone oil on the surface can heal surface scratches through self-leveling under the condition without the help of external force, and therefore the capacity of self-restoration, super-superhydrophobicity and long-time corrosion resistance of the composite coating is achieved.

The invention discloses an epoxy-based organic fluorosilicone oil emulsion darkening finishing agent, made from, by weight, 5-35% of octamethylcyclotetrasiloxane, 0.5-10% of 1,3,5-tris(3,3,3-trifluoropropyl)methylcyclotrisiloxane, 0.1-6% of 3-[(2,3)-epoxypropyl]propylmethyldimethoxysilane, 0.001-0.1% of a terminator, 0.001-0.1% of a high-alkality catalyst, 0.1-2% of an emulsifier, and the balance of deionized water; the epoxy-based organic fluorosilicone oil emulsion darkening finishing agent has a following structural formula, wherein X equals to 10-100, Y equals to 80-1000, Z equals to 8-80, and all X, Y and Z are integers; a preparation method of the darkening finishing agent is simple, the reaction process is easy to perform, an obtained emulsion is stable, the darkening finishing agent has significant darkening effect when applied to darkening post-finishing of dark fabric, and washing fastness and handle of textile fabrics can be improved.

The invention discloses a tough heat-conductive antibacterial non-stick coating which is prepared from, by weight, 1-2 parts of graphene powder, 10-20 parts of nano SiO2 dispersion liquid, 10-15 parts of aluminum oxide sol, 10-15 parts of zirconium oxide sol, 2-4 parts of bentonite, 1-3 parts of black iron oxide, 8-10 parts of polyimide, 30-50 parts of polytetrafluoroethylene water-based resin, 5-20 parts of acrylic acid, 5-8 parts of water-soluble polyester modified epoxy resin, 1-3 parts of fluorosilicone oil, 1-2 parts of silver nitrate, 1-2 parts of aluminum nitrate and 3-5 parts of butyl cellosolve. The coating is good in ductility, high in toughness, resistant to wear, not prone to cracking and high in heat conductivity, has the antibacterial function and can be widely applied to kitchen cookware and tableware.

The invention discloses an oil-resistant silicone rubber composite. The components of the composite include fluorine-containing copolymer silicone rubber, hydroxy terminated fluorosilicone oil, simethicone, wollastonite and mica. Compared with the existing oil-resistant rubber, the composite has the advantages that the fluorine-containing copolymer silicone rubber and the hydroxy terminated fluorosilicone oil are adopted, the oil resistance is improved greatly, and the fine oil resistant effect is achieved; furthermore, the wollastonite and mica are adopted, the oil resistance is improved, the cost is lowered, and the market application value is provided. Compared with conventional oil-resistant rubber prepared through vinyl silicone rubber, the oil-resistant rubber prepared through fluorine-containing copolymer silicone rubber has the advantages of better oil resistance and physical properties and higher stability. The oil resistance is detected according to the GB/T1690-2006 standard, and the volume change rate is not greater than 25%.

The invention discloses a wear-resistant and weather-resistant modified coating. The raw materials include fluorocarbon resin, caprolactone modified acrylic resin, styrene-acrylic emulsion, polyvinyl chloride resin, modified composite filler, modified adhesive, polyurethane, ortho Dioctyl phthalate, modified nano-montmorillonite, nano-titanium dioxide, sericite powder, magnesium hydroxide, ultrafine silica, calcined kaolin, kaolin, alumina, butyl acetate, sodium persulfate, fluorosilicone oil, Xylene, cyclohexanone, defoamer, silane coupling agent KH‑560, dispersant, silane coupling agent KH‑570, wetting agent and water. The modified coating of the invention has excellent wear resistance and weather resistance.

The invention discloses lubricating oil for mechanical equipment and a preparation method thereof, and relates to the field of lubricating oil. The lubricating oil for the mechanical equipment comprises the following raw materials in parts by weight: 30-40 parts of polyalphaolefin, 15-20 parts of fluorosilicone oil, 1.5-4 parts of pentaerythritol ester, 2-5 parts of modified nanodiamond, 1-3 partsof castor oil, 3-6 parts of grapheme, 1-3 parts of molybdenum disulfide, 0.4-0.8 part of Tween, 0.5-1.2 parts of sorbitol monooleate, 0.2-0.6 part of an antioxidant, 0.4-0.8 part of a demulsifying agent and 0.7-1.5 parts of a viscosity index improver. Through cooperation of the raw materials, the lubricating oil has good viscosity, lubricity and antioxidation; the lubricating oil forms a curing protection layer on the surface of the mechanical equipment; meanwhile, the lubricating oil has good wear resistance and durability.

The invention discloses a hydrophobic high CTI polyphenylene sulfide composition. The composition comprises the following components in parts by weight: 30-80 parts of polyphenylene sulfide, 10-60 parts of glass fibers, 0.2-2 part of a coupling agent, 0.2-2 part of fluorosilicone oil and 0.1-2 part of an antioxidant. According to the hydrophobic high CTI polyphenylene sulfide composition, the compatibility of PPS and a glass fiber material is improved through the coupling agent, the rigidity and the toughness of the material are further improved, meanwhile, the fluorosilicone oil is added, andthe characteristics of low surface energy and super-hydrophobicity of the fluorosilicone oil are utilized, in the injection molding process, due to the low surface energy, the composition is gatheredon the material surface, and the influence on the rigidity of the material is small. Meanwhile, after the fluorosilicone oil is gathered on the surface, the wetting of the PPS by the electrolyte canbe greatly reduced due to the super-hydrophobic characteristic, and the CTI of the PPS material can be obviously improved.

The invention discloses a conductive fluorinated silicone rubber foam composite material, a preparation method thereof and application of the conductive fluorinated silicone rubber foam composite material in the field of gas-sensitive detection. The preparation method comprises the following steps: ultrasonically dispersing carbon conductive particles in an organic solvent which is volatile at normal temperature to obtain conductive particle dispersion liquid; stirring perfluorosilicone oil, hydrogen-containing fluorosilicone oil and conductive particle dispersion liquid in an organic solvent until the organic solvent is completely volatilized, then adding a foaming agent and an inhibitor, performing uniform mixing to obtain a component A, and uniformly mixing perfluorosilicone oil and a platinum catalyst to obtain a component B; mixing the component A and the component B, performing uniform stirring, reacting at room temperature for 5-30 minutes, and crosslinking and curing the obtained product at 50-125 DEG C for 10-60 minutes to obtain the conductive fluorinated silicone rubber foam composite material.

The invention belongs to the technical field of cross-linking agents and discloses a fluorine-contained phenyl hydrogen-contained silicone oil cross-linking agent and a preparing method thereof. According to the method, a base catalyst is added into low-viscosity methyl silicone oil, phenyl cyclosiloxane and fluorosilicone oil, the mixture is mixed uniformly, temperature is raised, the mixture is stirred at constant temperature and cooled, an acid catalyst and hydrogen-contained silicone oil are sequentially added into the mixture, a balanced reaction is carried out, and follow-up treatment is carried out after the reaction is finished, so that the colorless and transparent fluorine-contained phenyl hydrogen-contained silicone oil cross-linking agent is obtained. According to the preparing method, methyl cyclosiloxane and an end-capping agent do not needed to be added, the technology is simplified, and the product quality and stability are improved; the adopted raw materials do not contain chlorine or alkoxy, and therefore introduction of chloride ions and residues of alkoxy are avoided; as no solvent is adopted, harm to the human body and pollution to the environment are avoided; the yield of the prepared cross-linking agent is high.

The invention discloses a high-activity hydrogen-containing fluorosilicone oil cross-linking agent and a preparation method thereof. The molecular structure of the cross-linking agent is shown in thespecification, a dimethyl silicon-oxygen chain link exists between the side hydrogen and the main chain silicon-oxygen chain link; compared with a structure in which side group hydrogen in a conventional hydrogen-containing fluorosilicone oil structure is directly connected to a silicon atom of a main chain, according to the structure, the steric hindrance effect of trifluoropropyl is reduced, theshielding influence of trifluoropropyl on silicon hydrogen is reduced, the reaction activity of silicon hydrogen on a main chain is improved, a good vulcanization effect can be achieved by adding a small amount of additive fluorosilicone rubber in a vulcanization system of the additive fluorosilicone rubber, and the mechanical property of the fluorosilicone rubber is improved.

The invention discloses a preparation method of a solvent resistant nanofiltration membrane. The preparation method comprises the steps of dissolving fluorosilicone oil, a cross-linking agent and a catalyst in a solvent, fully stirring to prepare a casting solution, filtering, defoaming, controlling the thickness, uniformly coating a base membrane by the casting solution, placing at room temperature until the solvent is volatized and solidified preliminarily, and further crosslinking at certain room temperature to obtain the fluorinated silicone rubber solvent resistant nanofiltration membrane. The prepared solvent resistant nanofiltration membrane is used for recycling hexane from soybean oil/hexane mixed oil, has excellent separation property, can overcome the disadvantage that the common silicone rubber has organic solvent intolerance, has excellent swelling resisting behavior, and can keep stable separating property after long-time operation.

The invention relates to an organic silicon pouring sealant for LEDs. The organic silicon pouring sealant for LEDs is characterized by comprising the following components (in parts by weight): 90-100 parts of low-viscosity 107 glue, 1-5 parts of hydroxyl end-capping silicone oil, 2-5 parts of methyl silicone oil, 1-5 parts of methyl fluorosilicone oil , 5-10 parts of a cross-linking agent, 1-5 parts of a cross-linking agent and 1-5 parts of a catalyst. The preparation method comprises: adding the low-viscosity 107 glue, the hydroxyl end-capping silicone oil, the methyl silicone oil and the methyl fluorosilicone oil into a stirrer in formula to be stirred for 30 minutes at a high speed, and carrying out vacuum pumping to remove air bubbles to obtain a mixture II; taking the mixture I as base glue; adding the cross-linking agent, the coupling agent and the catalyst according to the formula to be uniformly mixed to obtain a mixture II, and taking the mixture II as an auxiliary gent; and uniformly mixing the base glue with the auxiliary agent in a ratio of the base glue to the auxiliary agent being 10:1, thereby obtaining the organic silicon pouring sealant for LEDs. The organic silicon pouring sealant disclosed by the invention is excellent in bonding force, high in transparency, good in bubble discharge, quick in deep-layer curing and free of yellowing. The organic silicon pouring sealant can be used for protecting the LEDs from invasion of the external environment for a long time.