WO2016111104A1 - Composé d'huile de silicone pour agent antimousse, et composition d'agent antimousse - Google Patents

Composé d'huile de silicone pour agent antimousse, et composition d'agent antimousse Download PDF

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Publication number
WO2016111104A1
WO2016111104A1 PCT/JP2015/084110 JP2015084110W WO2016111104A1 WO 2016111104 A1 WO2016111104 A1 WO 2016111104A1 JP 2015084110 W JP2015084110 W JP 2015084110W WO 2016111104 A1 WO2016111104 A1 WO 2016111104A1
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Prior art keywords
silicone oil
group
oil compound
composition
antifoaming
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PCT/JP2015/084110
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Japanese (ja)
Inventor
孝冬 櫻井
亮広 小林
青木　俊司
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Shin Etsu Chemical Co Ltd
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Shin Etsu Chemical Co Ltd
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D19/00—Degasification of liquids
    • B01D19/02—Foam dispersion or prevention
    • B01D19/04—Foam dispersion or prevention by addition of chemical substances

Definitions

  • the present invention particularly relates to a silicone oil compound and an antifoaming composition that give an antifoaming composition excellent in antifoaming properties and dispersibility in a foaming liquid.
  • Silicone-based antifoaming agents have extremely low surface tension and are insoluble in many solvents, so they have better antifoaming performance than other antifoaming agents.
  • Chemical, food and petroleum industries It is widely used in processes involving foaming, such as textile industry, paper industry, paper pulp industry, and pharmaceutical industry.
  • an oil compound type antifoaming agent obtained by mixing silicone oil such as dimethylpolysiloxane, methylphenylpolysiloxane, and methylvinylpolysiloxane with fine powder silica, and these silicone oil compounds together with a surfactant in water.
  • Dispersed emulsion antifoaming agents are widely used.
  • the emulsion type antifoaming agent has a problem that the emulsified particles are destroyed under severe conditions such as high temperature, high alkalinity, and high shearing force and the defoaming ability is lowered.
  • Self-emulsifying antifoaming agent using organopolysiloxane modified with a silicone oil compound Japanese Patent Publication No. 51-71886, Japanese Patent Publication No. 54-43015, Japanese Patent Publication No. 52-19836, Japanese Patent Publication No. 52- No. 22638 and Japanese Patent Publication No. 55-23084 (Patent Documents 1 to 5)] have also been proposed.
  • silicone-based antifoaming agents have excellent antifoaming effects, but their dispersibility is poor, and even those with improved dispersibility in aqueous systems as emulsion type or self-emulsifying type can reach the target dispersibility. In addition, there is a problem that the defoaming effect is not sufficiently exhibited, or bleeding of the silicone component is often generated.
  • the present invention has been made in view of the above circumstances, and particularly provides a silicone oil compound and an antifoaming agent composition that provide an antifoaming agent composition having excellent antifoaming properties and dispersion stability in a foaming liquid. For the purpose.
  • the present inventors have reduced low molecular weight siloxane in the silicone oil of the antifoaming agent composition, in particular, trimer to decameric cyclic dimethylpolysiloxane. It has been found that the emulsifiability is improved by reducing the amount of water, the dispersion stability of the emulsion is obtained while ensuring the defoaming effect, and further, it is possible to prevent the electric contact failure in the final product.
  • low molecular weight siloxane is a destabilizing factor of emulsion type or self-emulsifying type silicone antifoaming agent.
  • Low-molecular-weight siloxanes are mainly cyclic trimers to 10-mers of dimethylsiloxy units represented by “-Me 2 SiO—”, and these have lower specific gravity than high-molecular silicone oil and water. It was discovered that when a self-emulsifying type is used, separation due to a difference in specific gravity is likely to occur, resulting in a loss of dispersibility in an aqueous system.
  • the low molecular weight siloxane volatilizes not only in a high temperature atmosphere but also at room temperature. Moreover, low molecular siloxane may be taken in and volatilized by the mist produced from a foaming liquid.
  • the low-molecular siloxane volatilized or volatilized in this way adheres to the equipment during the process, and there is a risk of causing electrical contact failure of components such as relays, switches and motors used in electronic and electrical equipment.
  • silicone-based antifoaming agents are sometimes used in the production of resins, fibers, rubber, paints and inks, or resin molding. Furthermore, indirectly, coating agents, mold release agents, lubricants, anti-blocking agents, and fiber treatment agents are used as treatment agents for these materials. For the purpose of improving workability, silicone antifoaming agents are used. It is used frequently.
  • nonwoven fabrics in which fibers are entangled into a sheet form are used in many electronic devices, including air conditioner filters, battery separators for mobile phones, personal computers, etc. Used in equipment.
  • non-woven fabrics are also used in automobile parts that are also susceptible to electrical contact obstructions, such as transmission tunnels in engine parts, soundproofing parts such as turbo compressors, filter parts such as oil filters, transmission filters, and diesel filters, and other thermal insulation materials.
  • electrical contact obstructions such as transmission tunnels in engine parts, soundproofing parts such as turbo compressors, filter parts such as oil filters, transmission filters, and diesel filters, and other thermal insulation materials.
  • Such problems of electrical contact failures are not limited to electronic materials, but are also observed in the food industry, for example.
  • many food processing machines are used in the food industry.
  • volatilization of these low-molecular siloxanes is promoted by high-temperature treatment such as heating process and frying process, which may cause electric contact failure of food processing machines. is there.
  • the low molecular weight siloxane may be volatilized to cause troubles such as electrical contact failure.
  • wastewater and sewage treatment plants not only simply purify wastewater and sewage, but also use digestive gases such as methane gas and carbon dioxide generated by anaerobic fermentation during purification using activated sludge as fuel.
  • digestive gases such as methane gas and carbon dioxide generated by anaerobic fermentation during purification using activated sludge as fuel.
  • part of the power from the wastewater and sewage treatment plant is provided. If low molecular siloxane is present at that time, it causes deterioration of wear of the engine sliding member of the gas power generation facility, and power generation efficiency and maintainability due to silica deposition on the spark plug. Further, the generated silica may cause clogging of the exhaust gas treatment catalyst, which may become a catalyst poison.
  • silica derived from such low molecular siloxanes becomes a catalyst poison.
  • silicone-based antifoaming agents are used in the petroleum refining process. At that time, aromatics such as sulfur, nitrogen or benzene are removed, and in petroleum, a low octane fraction is increased by reaction. Many reforming catalysts having an octane number are also used. If such a catalyst is blocked by silica derived from low molecular siloxane, the operation efficiency and maintainability are similarly lowered.
  • the present invention provides the following antifoaming silicone oil compound and antifoaming composition.
  • the following average composition formula (1) R a SiO (4-a) / 2 (1)
  • R is, independently of each other, an unsubstituted or substituted monovalent hydrocarbon group, and a is a number of 1.9 to 2.2.
  • An antifoaming composition comprising the silicone oil compound for an antifoaming agent according to [1] or [2] and a nonionic surfactant.
  • the antifoaming composition according to [4] which is a solution type.
  • the antifoaming composition according to [4] or [5] which is a self-emulsifying type in combination with an organopolysiloxane modified with a polyoxyalkylene group.
  • the antifoaming composition according to [5] which is an emulsion type.
  • a powder type antifoaming composition comprising the antifoaming silicone oil compound according to [1] or [2] adsorbed on a fine powder carrier.
  • an antifoaming composition that is particularly excellent in antifoaming properties and dispersion stability in a foaming liquid and that can prevent electrical contact failure.
  • the silicone oil compound is a main component for imparting antifoaming properties to the antifoaming agent composition, and is composed of silicone oil (a) and fine powder silica (b).
  • a silicone oil compound may be used individually by 1 type, or may use 2 or more types together.
  • Silicone oil may be either linear or branched, and may be used alone or in combination of two or more.
  • the silicone oil the following average composition formula (1): R a SiO (4-a) / 2 (1) (In the formula, R is, independently of each other, an unsubstituted or substituted monovalent hydrocarbon group, and a is a number of 1.9 to 2.2.) The thing represented by is mentioned.
  • the silicone oil represented by the above formula (1) is essentially hydrophobic.
  • R is preferably, independently of each other, an unsubstituted or substituted monovalent hydrocarbon group having 1 to 18 carbon atoms.
  • the monovalent hydrocarbon group include methyl group, ethyl group, propyl group, butyl group, pentyl group, hexyl group, heptyl group, octyl group, nonyl group, decyl group, dodecyl group, tridecyl group, tetradecyl group, Hexadecyl, octadecyl and other alkyl groups, cyclohexyl and other cycloalkyl groups, vinyl and allyl groups and other alkenyl groups, phenyl and tolyl groups and other aryl groups, styryl groups and ⁇ -methylstyryl groups and other aralkyl groups Or some or all of the hydrogen atoms bonded to the carbon atoms of these groups are substituted with halogen
  • 80% or more, particularly 90% or more, of the total number of groups represented by R is a methyl group.
  • a is a number satisfying 1.9 ⁇ a ⁇ 2.2, preferably 1.95 ⁇ a ⁇ 2.15.
  • the end of the organopolysiloxane may be blocked with a triorganosilyl group represented by R 3 Si— or a diorganohydroxysilyl group represented by HOR 2 Si—.
  • the silicone oil from the viewpoint of antifoaming property and workability, ⁇ viscosity of 10 at 25 ° C. as measured by an Ostwald viscometer 100,000 mm 2 / s, preferably can have a 50 ⁇ 10,000 mm 2 / s . If it is less than the lower limit, the defoaming performance of the silicone oil compound is inferior, and if it exceeds the upper limit, the viscosity of the silicone oil compound increases and the workability deteriorates.
  • the cyclic tetramer and pentamer of the dimethylsiloxy unit represented by “-Me 2 SiO—” are each 1,000 ppm or less, particularly the cyclic trimer to 10-mer, respectively.
  • One having 1,000 ppm or less, preferably a total amount of cyclic trimer to 10-mer of 1,000 ppm or less is used.
  • a siloxane polymer is produced by an equilibrium reaction of a siloxane oligomer with an acid or an alkali, a considerable amount of low molecular weight siloxane always exists regardless of the degree of polymerization.
  • a method for reducing the low molecular weight siloxane component contained in the silicone oil a method for vaporizing and removing the low molecular weight siloxane component under high temperature heating of about 100 to 300 ° C. under reduced pressure, or during or after the vaporization removal is performed.
  • a method of promoting vaporization by blowing an inert gas may be used.
  • the cyclic trimer to 10-mer of the dimethylsiloxy unit represented by “-Me 2 SiO—” in the silicone oil as component (a) is 1,000 ppm or less, preferably 500 ppm or less, more preferably Is reduced to 200 ppm or less, and in particular, the total amount of cyclic trimer to 10-mer is reduced to 1,000 ppm or less, preferably 500 ppm or less, more preferably 200 ppm or less.
  • silicone oil represented by the above formula (1) examples include dimethylpolysiloxane, diethylpolysiloxane, methylphenylpolysiloxane, dimethylsiloxane / diphenylsiloxane copolymer, methyl (3,3,3-trifluoropropyl) poly Examples thereof include siloxane and ⁇ , ⁇ -dihydroxydimethylpolysiloxane.
  • the amount of silicone oil (a) is preferably 60 to 99.9 parts by mass, particularly 80 to 99 parts by mass in 100 parts by mass of (A) silicone oil compound.
  • the fine powder silica may be a known one.
  • wet silica such as precipitated silica
  • dry silica such as silica xerogel and fumed silica
  • All the silicas are hydrophilic silicas.
  • the hydrophilic silica may be used as it is or may be surface-treated with a compound having an organic silyl group and modified with a trimethylsilyl group, a dimethylsilyl group, a monomethylsilyl group, a polydimethylsiloxy group, or the like.
  • Hydrophobic silica may be used.
  • the fine powder silica may be used alone or in combination of two or more.
  • a commercially available product can be used as the fine powder silica.
  • the fine powder silica preferably has a specific surface area of 100 m 2 / g or more by BET method, more preferably 100 to 500 m 2 / g, still more preferably 150 to 500 m 2 / g.
  • the amount of finely divided silica (b) is preferably 0.1 to 40 parts by mass, particularly 1 to 20 parts by mass in 100 parts by mass of the (A) silicone oil compound.
  • the total amount of (a) silicone oil and (b) fine powder silica is 100 parts by mass.
  • the silicone oil compound may be prepared by a known method. For example, after the above (a) silicone oil and (b) fine powder silica are mixed and heat-treated at a temperature of 80 ° C. or more, particularly 80 to 200 ° C. If necessary, it can be produced by neutralization and / or removal of a low-boiling fraction.
  • This silicone oil compound includes inorganic ammonium salts, organosilicon compounds, siloxane resins, and alkali catalysts described in JP-B-4-42043, JP-A-5-261206, and JP-A-2005-324140. Or the like may be further added to improve the antifoaming sustainability, high temperature characteristics, dilution stability, alkali resistance and the like of the antifoaming agent.
  • the low molecular siloxane content in the silicone oil compound depends on the low molecular siloxane content in the silicone oil, and the tetramer and pentamer cyclic dimethylpolysiloxane contents are each 1,000 ppm or less, Preferably, it is 500 ppm or less, more preferably 200 ppm or less.
  • the content of the cyclic dimethylpolysiloxane of trimer to 10-mer is 1,000 ppm or less, preferably 500 ppm or less, more preferably 200 ppm or less. More preferably, the total content of the trimer to 10-mer cyclic dimethylpolysiloxane is 1,000 ppm or less, preferably 500 ppm or less, more preferably 200 ppm or less.
  • the silicone oil compound (A) may be used as an antifoam composition as it is, or may be used as an antifoam composition by combining the silicone oil compound (A) and the nonionic surfactant (B). Good.
  • the antifoam composition containing the silicone oil compound may be an embodiment in which the silicone oil compound is used as it is, or a solvent that dissolves the silicone oil in the silicone oil compound, such as toluene, xylene, hexane, chloroform, 2-butanone,
  • a solution-type antifoaming agent composition in which a silicone oil compound is dispersed in a solvent such as 4-methyl-2-pentanone, or a silicone oil compound containing methyl cellulose, polyvinyl alcohol, lactose, dextrin, hydrophilic fine powder silica, starch, etc.
  • An embodiment of a powder type antifoaming agent composition in which a silicone oil compound is adsorbed on the fine powder carrier is mentioned.
  • a silicone oil compound is 5-80 mass% of the whole antifoamer composition, More preferably, it is 30-70 mass%. If the silicone oil compound content is too low, the defoaming performance of the antifoaming composition may be inferior. If it is too high, the main purpose of the solution type antifoaming composition is to improve the dispersibility of the silicone oil compound. There are cases where it is not possible.
  • an antifoaming composition using the silicone oil compound (A) and the nonionic surfactant (B) in combination an embodiment in which a mixture of the silicone oil compound and the nonionic surfactant is used as it is, the mixture is used as water.
  • the emulsion type antifoaming agent composition emulsified and dispersed in the above are mentioned.
  • the nonionic surfactant (B) is used to disperse the silicone oil compound (A) in water, but may be generally known, for example, sorbitan fatty acid ester, glycerin fatty acid ester, poly Glycerin fatty acid ester, propylene glycol fatty acid ester, sucrose fatty acid ester, polyethylene glycol fatty acid ester, polyoxyethylene alkyl ether, polyoxyethylene alkyl phenyl ether, polyoxyethylene fatty acid ester, polyoxyethylene sorbitan fatty acid ester, polyoxyethylene glycerin fatty acid Esters, polyoxyethylene propylene glycol fatty acid esters, polyoxyethylene castor oil, polyoxyethylene hydrogenated castor oil, polyoxyalkylene modified ol Roh polysiloxane, and the like.
  • the (B) nonionic surfactant in the antifoam composition of the present invention may be used alone or in a mixture of two or more, but the blending amount is (A) silicone.
  • the amount is 2 to 500 parts by weight, preferably 5 to 300 parts by weight, based on 100 parts by weight of the oil compound. When the amount is less than 2 parts by mass, the water dispersibility is deteriorated. When the amount is more than 500 parts by mass, the defoaming property is inferior.
  • the silicone oil compound may be a self-emulsifying antifoaming composition that is used in combination with an organopolysiloxane modified with a polyoxyalkylene group.
  • the organopolysiloxane modified with the polyoxyalkylene group is represented by the following general formula (2). What is shown. R 1 2 R 3 SiO— (R 1 2 SiO) b — (R 1 R 2 SiO) c —SiR 1 2 R 3 (2)
  • R 1 is the same or different unsubstituted or substituted monovalent hydrocarbon group having 1 to 18 carbon atoms, specifically, methyl group, ethyl group, propyl group, isopropyl group , Butyl group, isobutyl group, pentyl group, hexyl group, heptyl group, octyl group, nonyl group, decyl group, dodecyl group, tridecyl group, tetradecyl group, hexadecyl group, octadecyl group and other alkyl groups, cyclohexyl group and other cycloalkyl groups Group, an alkenyl group such as a vinyl group or an allyl group, an aryl group such as a phenyl group or a tolyl group, an aralkyl group such as a styryl group or an ⁇ -methylstyryl group, or a
  • monovalent hydrocarbon groups such as a propyl group, a cyanoethyl group, a 3-aminopropyl group, and an N- ( ⁇ -aminoethyl) - ⁇ -aminopropyl group.
  • R 2 is a polyoxyalkylene group represented by the following general formula (3). —R 4 —O (CH 2 CH 2 O) d — (CH 2 (CH 3 ) CHO) e —R 5 (3)
  • R 4 is a divalent hydrocarbon group having 2 to 6 carbon atoms, and examples thereof include an alkylene group and an alkenylene group. Examples thereof include an ethylene group, a propylene group, a butylene group, a pentylene group and a hexylene group.
  • R 5 represents a hydrogen atom, an alkyl group having 1 to 6 carbon atoms, an acetyl group, or an isocyan group.
  • alkyl group examples include a methyl group, an ethyl group, a propyl group, a butyl group, and a pentyl group.
  • R 3 is the same group as R 1 or R 2 , a hydroxyl group or an alkoxy group having 1 to 6 carbon atoms.
  • the groups exemplified as the above R 1 and R 2 and the alkoxy group include methoxy Group, ethoxy group, propoxy group, butoxy group and the like.
  • b is an integer of 5 to 200, preferably 20 to 150
  • c is an integer of 1 to 30, preferably 1 to 20.
  • the organopolysiloxane modified with a polyoxyalkylene group may be used alone or in a mixture of two or more.
  • the viscosity at 25 ° C. measured by an Ostwald viscometer is 10 to 10, Those having a thickness of 000 mm 2 / s, preferably 50 to 8,000 mm 2 / s, more preferably 500 to 5,000 mm 2 / s can be used.
  • organopolysiloxane modified with a polyoxyalkylene group examples include, but are not limited to, the following.
  • the organopolysiloxane modified with the polyoxyalkylene group may be used alone or in a mixture of two or more, but the content thereof is self-emulsifying. It is preferably 0 to 95% by mass, more preferably 0 to 70% by mass, based on the total mold defoamer composition. If the content is too small, the main purpose of the self-emulsifying antifoam composition to increase the dispersibility of the silicone oil compound may not be satisfied. If the content is too large, the defoaming performance as an antifoam composition may be inferior. is there. In addition, although it can be set as an effective amount when mix
  • the polyoxyalkylene polymer is blended in order to increase the dispersibility of the silicone oil compound, and even if it is used alone or in combination of two or more.
  • the content thereof is preferably 0 to 95% by mass, more preferably 0 to 70% by mass, based on the total amount of the self-emulsifying antifoam composition.
  • the defoaming performance as an antifoamer composition may be inferior.
  • it can be set as an effective amount when mix
  • the nonionic surfactant is blended in order to improve the dispersibility of the silicone oil compound, and even if it is used alone, it is a mixture of two or more.
  • the content is preferably 0 to 95% by mass, more preferably 0 to 70% by mass, based on the total amount of the self-emulsifying antifoaming agent composition.
  • the defoaming performance as an antifoamer composition may be inferior.
  • it can be set as an effective amount when mix
  • the content of the silicone oil compound is preferably 5 to 80% by mass, more preferably 10 to 70% by mass of the total self-emulsifying antifoam composition. %, More preferably 20 to 60% by mass. If the content of the silicone oil compound is too small, the defoaming performance as an antifoaming composition may be inferior. If the content is too large, the main purpose of the self-emulsifying antifoaming composition is to increase the dispersibility of the silicone oil compound. You may not be satisfied.
  • an emulsion type antifoaming agent composition when used, a known method can be used.
  • an emulsifier for emulsifying a silicone oil compound the above-mentioned organopolysiloxane modified with a polyoxyalkylene group, polyoxyalkylene, An alkylene polymer, the above-mentioned nonionic surfactant, etc. can be used.
  • the organopolysiloxane modified with the polyoxyalkylene group may be used singly or in a mixture of two or more, but the content thereof is an emulsion type antifoaming agent.
  • the content is preferably 0 to 30% by mass, more preferably 1 to 20% by mass, based on the total foaming agent composition. When content exceeds 30 mass%, the defoaming performance of a composition may worsen.
  • the polyoxyalkylene polymer serves as an emulsification aid and may be used alone or in a mixture of two or more. Is preferably 0 to 40% by mass, more preferably 0 to 20% by mass, based on the total amount of the emulsion type antifoaming agent composition. When content exceeds 40 mass%, the emulsification characteristic of a composition may worsen. In addition, although it can be set as an effective amount when mix
  • the nonionic surfactant is for dispersing the silicone oil compound in water, and it can be used alone or in combination of two or more.
  • the content is preferably 0 to 20% by mass, more preferably 1 to 12% by mass, based on the whole emulsion antifoam composition. When it exceeds 20 mass%, the viscosity of an antifoamer composition may become high and workability
  • the content of the silicone oil compound is preferably 5 to 50% by mass, more preferably 10 to 40% by mass of the total emulsion type antifoaming agent composition. is there. If the content of the silicone oil compound is too small, the defoaming performance as the antifoaming composition may be inferior, and if it is too large, the viscosity of the antifoaming composition may be increased and workability may be deteriorated.
  • water necessary for emulsifying each component such as a silicone oil compound, an organopolysiloxane modified with a polyoxyalkylene group, a polyoxyalkylene polymer, and a nonionic surfactant.
  • the amount is the balance with respect to the total content of each component, preferably 50 to 2,000 parts by weight, more preferably 80 to 400 parts by weight, based on a total of 100 parts by weight of each component Add to be.
  • the emulsion type antifoaming composition is prepared by mixing a predetermined amount of each component other than water and heating as necessary, for example, a known method, for example, a mixer / disperser such as a homomixer, homogenizer, colloid mill or the like. It can be prepared by stirring and emulsifying, but in particular, after a predetermined amount of each component other than water is uniformly mixed and dispersed, a part of water is added, and the remaining after stirring and emulsification A method of adding water and stirring and mixing uniformly is preferable.
  • preservatives and bactericides may optionally be added to the emulsion antifoam composition for the purpose of preserving.
  • the preservative / disinfectant include sodium hypochlorite, sorbic acid, potassium sorbate, salicylic acid, sodium salicylate, benzoic acid, sodium benzoate, parabens, isothiazoline compounds and the like.
  • the amount of addition is preferably 0 to 0.5% by mass, particularly 0.005 to 0.5% by mass, based on the total emulsion antifoam composition.
  • a small amount of a thickener may be optionally added to the emulsion antifoam composition for the purpose of thickening.
  • the thickener include polyacrylic acid, sodium polyacrylate, acrylic acid / methacrylic acid copolymer, sodium carboxymethylcellulose, methylcellulose, hydroxypropylmethylcellulose, hydroxyethylmethylcellulose, xanthan gum, and guar gum.
  • the addition amount is preferably 0 to 1.0% by mass, particularly 0.01 to 0.5% by mass, based on the total emulsion antifoam composition.
  • the viscosity in an Example is a value in 25 degreeC measured with the Canon Fenceke (SO) viscometer (model name: No.500, Shibata Kagaku Co., Ltd. product).
  • Example 1 90 parts by mass of dimethylpolysiloxane having a viscosity of 1,000 mm 2 / s [manufactured by Shin-Etsu Chemical Co., Ltd., KF96 (1,000 cs)], and nipsil HD-2 [Tosoh Silica Co., Ltd.] as fine powder silica 10 parts by mass of a specific surface area of 300 m 2 / g] were mixed at 150 ° C. for 3 hours under a nitrogen gas atmosphere to obtain a silicone oil compound (A-1).
  • Example 2 90 parts by mass of dimethylpolysiloxane having a viscosity of 1,000 mm 2 / s [manufactured by Shin-Etsu Chemical Co., Ltd., KF96 (1,000 cs)], surface hydrophobized silica Aerosil R812 treated with hexamethyldisilazane as fine powder silica [Nippon Aerosil Co., Ltd., specific surface area 250 m 2 / g] 5 parts by mass and 5 parts by mass of potassium siliconate (Shin-Etsu Chemical Co., Ltd.) containing 3% by mass of potassium hydroxide under nitrogen gas atmosphere The mixture was mixed at 150 ° C.
  • a silicone oil compound (A-2) 1 g of the obtained silicone oil compound and 10 mL of acetone are weighed into a glass bottle, sealed, shaken for 16 hours, and gas chromatography is used to measure the dimethylsiloxy unit represented by “-Me 2 SiO—” in acetone.
  • an antifoaming composition was prepared using the silicone oil compound and the following nonionic surfactant.
  • B-1 A polyoxyalkylene-modified organopolysiloxane having an average composition represented by the following formula (4) and a viscosity of 1,640 mm 2 / s.
  • B-2 A polyoxyalkylene-modified organopolysiloxane having an average composition represented by the following formula (5) and a viscosity of 1,100 mm 2 / s.
  • R 5 is —CH 3
  • R 6 is —C 13 H 27
  • R 7 is —C 3 H 6 O (C 2 H 4 O) 6 (C 3 H 6 O) 24 CH 3
  • x is 80
  • y is 2.
  • B-3 A polyoxyalkylene polymer having an average composition represented by the following formula (6). HO— (C 3 H 6 O) 35 —H (6)
  • Sorbitan monostearate B-5) Polyethylene glycol monostearate (EO addition mole number 50)
  • Examples 3 to 5, Comparative Examples 2 and 3 The components (A) and (B) were used in the amounts shown in Table 1, and heated and mixed with a homomixer at 80 ° C.
  • an antifoaming composition was prepared by gradually adding water and emulsifying and dispersing again with a homomixer. These compositions were evaluated for defoaming properties, water dispersibility, dilution stability, electrical contact failure prevention properties, dyeability, and oil spots.

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  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Toxicology (AREA)
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  • Chemical Kinetics & Catalysis (AREA)
  • Degasification And Air Bubble Elimination (AREA)

Abstract

L'invention concerne un composé d'huile de silicone pour agent antimousse qui contient : 60 à 99,9 parties en masse d'une huile de silicone qui est représentée par la formule de composition moyenne (1) ＲaＳｉＯ(4-a)/2 （１） ( dans la formule, les R représentent indépendamment les uns des autres, un groupe hydrocarbure monovalent non substitué ou substitué, et a représente un nombre de 1,9 à 2,2), et dont la viscosité à 25°C est comprise entre 10 et 100000mm2/s ; et 0,1 à 40 parties en masse d'une silice en fine poudre dont la surface spécifique selon le procédé BET est supérieure ou égale à 100m2/g. Les teneurs en diméthylpolysiloxane cyclique de tétramère et de pentamère, sont individuellement inférieures ou égales à 1000pm. Enfin, selon l'invention, il est possible d'obtenir une composition d'agent antimousse qui est excellente tout particulièrement en termes de propriétés antimousses et de stabilité de dispersion dans une mousse liquide, et qui prévient les problèmes de contact élqctrique.
PCT/JP2015/084110 2015-01-08 2015-12-04 Composé d'huile de silicone pour agent antimousse, et composition d'agent antimousse Ceased WO2016111104A1 (fr)

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Cited By (6)

* Cited by examiner, † Cited by third party
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CN113301975A (zh) * 2019-12-23 2021-08-24 现代炼油株式会社 用于减少烃泡沫和硅残留物的消泡剂组合物
CN115228148A (zh) * 2022-09-26 2022-10-25 烟台恒鑫化工科技有限公司 一种油田用复合消泡剂及其制备方法
WO2023074236A1 (fr) 2021-10-29 2023-05-04 信越化学工業株式会社 Polyorganosiloxane et son procédé de production
WO2024018943A1 (fr) 2022-07-22 2024-01-25 信越化学工業株式会社 Composition de résine époxy, produit durci en résine époxy et adhésif époxy
WO2024084968A1 (fr) 2022-10-18 2024-04-25 信越化学工業株式会社 Composition de résine époxydique
WO2024111447A1 (fr) 2022-11-22 2024-05-30 信越化学工業株式会社 Composition de résine époxy

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51134795A (en) * 1975-05-05 1976-11-22 Gen Electric Process for producing diorganopolysiloxane
JPS5771608A (en) * 1980-10-20 1982-05-04 Mikasa Kagaku Kogyo Kk Solid silicon defoaming agent
JPH06142410A (ja) * 1992-11-13 1994-05-24 Shin Etsu Chem Co Ltd 泡抑制剤組成物
JPH08108008A (ja) * 1994-10-14 1996-04-30 Toshiba Silicone Co Ltd 消泡剤組成物
JPH08109260A (ja) * 1993-11-10 1996-04-30 Shin Etsu Chem Co Ltd 直鎖状オルガノポリシロキサン及びその製造方法
JP2013103204A (ja) * 2011-11-16 2013-05-30 Shin-Etsu Chemical Co Ltd 粉末消泡剤及びその製造方法

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5334854A (en) * 1976-09-14 1978-03-31 Toray Silicone Co Ltd Self-emulsifiable silicone composition
DE2903423A1 (de) * 1979-01-30 1980-08-07 Wacker Chemie Gmbh Selbstemulgierbare antischaummittel
ATE113493T1 (de) * 1991-01-16 1994-11-15 Procter & Gamble Schaumkontrollmittel in granulierter form.
GB9214567D0 (en) * 1992-07-09 1992-08-19 Dow Corning Sa Foam control agents
JPH08196811A (ja) * 1995-01-31 1996-08-06 Shin Etsu Chem Co Ltd 消泡剤用オイルコンパウンドの製造方法及びそれを含有する消泡剤組成物
JP3944690B2 (ja) * 2001-07-11 2007-07-11 信越化学工業株式会社 消泡剤組成物
JP3974845B2 (ja) * 2002-12-05 2007-09-12 信越化学工業株式会社 消泡剤組成物
JP2007222812A (ja) * 2006-02-24 2007-09-06 Shin Etsu Chem Co Ltd 消泡剤組成物
JP5804565B2 (ja) * 2012-06-29 2015-11-04 信越化学工業株式会社 消泡剤組成物

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51134795A (en) * 1975-05-05 1976-11-22 Gen Electric Process for producing diorganopolysiloxane
JPS5771608A (en) * 1980-10-20 1982-05-04 Mikasa Kagaku Kogyo Kk Solid silicon defoaming agent
JPH06142410A (ja) * 1992-11-13 1994-05-24 Shin Etsu Chem Co Ltd 泡抑制剤組成物
JPH08109260A (ja) * 1993-11-10 1996-04-30 Shin Etsu Chem Co Ltd 直鎖状オルガノポリシロキサン及びその製造方法
JPH08108008A (ja) * 1994-10-14 1996-04-30 Toshiba Silicone Co Ltd 消泡剤組成物
JP2013103204A (ja) * 2011-11-16 2013-05-30 Shin-Etsu Chemical Co Ltd 粉末消泡剤及びその製造方法

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113301975A (zh) * 2019-12-23 2021-08-24 现代炼油株式会社 用于减少烃泡沫和硅残留物的消泡剂组合物
WO2023074236A1 (fr) 2021-10-29 2023-05-04 信越化学工業株式会社 Polyorganosiloxane et son procédé de production
WO2024018943A1 (fr) 2022-07-22 2024-01-25 信越化学工業株式会社 Composition de résine époxy, produit durci en résine époxy et adhésif époxy
CN115228148A (zh) * 2022-09-26 2022-10-25 烟台恒鑫化工科技有限公司 一种油田用复合消泡剂及其制备方法
WO2024084968A1 (fr) 2022-10-18 2024-04-25 信越化学工業株式会社 Composition de résine époxydique
WO2024111447A1 (fr) 2022-11-22 2024-05-30 信越化学工業株式会社 Composition de résine époxy
EP4624508A1 (fr) 2022-11-22 2025-10-01 Shin-Etsu Chemical Co., Ltd. Composition de résine époxy

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