Stable organic silicon emulsion and preparation method thereof

Abstract

According to the stable organic silicon emulsion and the preparation method thereof provided by the invention, polyglycerol ricinoleate with different polymerization degrees, polydihydric alcohol oleate with different molecular weights and silicon polyether are introduced, so that the emulsifying capacity of the emulsion is improved, and the stability of the emulsion is improved; the polyglycerol ricinoleate serving as an emulsifier and a stabilizer can disperse water-soluble substances and oil-soluble substances, so that all the components are uniformly mixed, the emulsification is more sufficient, and the stability of the emulsion is improved; the emulsion enters the emulsification pump for emulsification under the condition of high rotating speed, so that the particle size of the emulsion is smaller, and the stability is better.

Description

Technical Field

[0001] The invention relates to a stable organosilicon emulsion and a preparation method thereof, belonging to the technical field of organic synthesis. Background Art

[0002] Silicone is a new type of polymer material. Compared with other polymer materials, silicone has excellent temperature resistance, weather resistance, and electrical insulation properties. It also has low surface tension and low surface energy, so it has a very wide range of applications.

[0003] Silicone emulsion is one of the common silicone products, mainly composed of silicone, water and surfactants. Due to its unique properties, it is widely used in industry. Silicone emulsion can be divided into water-in-oil emulsion and oil-in-water emulsion. There are many methods to prepare silicone emulsion, but how to prepare a stable emulsion and make it work in the application field without adverse reactions puts higher requirements on the preparation and performance of the emulsion.

[0004] Patent CN201210571401.3 uses silicone polyether with a spatial structure to disperse and emulsify high-viscosity silicone compositions, and uses polyacrylate thickeners to improve the stability of the emulsion; Patent CN202010253813.7 uses a compound emulsification system and a thickener to prepare a silicone emulsion; CN202111516457.4 uses siloxane and acrylic copolymers, block wetting agents, polyethers, inorganic particles, emulsifiers and water to prepare silicone emulsions, which have good low surface performance and compatibility. Patent CN201210560280.2 introduces a silicone composition at high temperature to improve the low surface tension performance of the silicone emulsion, and at the same time uses a synthetic polyether-modified polysiloxane to wrap the emulsified silicone composition to improve the dispersibility and stability of the emulsion; CN102718978A discloses a method for reducing the viscosity of a silicone emulsion, by first compounding silicone polyether, an organic solvent and water, and then using them as a diluent in the preparation process of the silicone emulsion. Since the silicone polyether has emulsifying and defoaming effects and the organic solvent has a dispersing effect, the viscosity of the obtained silicone emulsion is greatly reduced, and it can be quickly dispersed in the foaming system.

[0005] In terms of emulsifiers, the above patents improve the emulsification performance by introducing unsaturated polyether-modified silicone polyether or dispersant or co-emulsifier, or improve the dispersion performance of the emulsion by reducing the viscosity of the silicone active substance, and finally prepare a stable silicone emulsion. Summary of the invention

[0006] The key technology of the present invention is to introduce polyglycerol ricinoleate with different polymerization degrees, polyglycol oleate with different molecular weights, and silicone polyether to improve the emulsification ability of the emulsion and enhance the stability of the emulsion; polyglycerol ricinoleate as an emulsifier and stabilizer can disperse water-soluble substances and oil-soluble substances, so that the components are mixed evenly and the emulsification is more sufficient, thereby improving the stability of the emulsion; the present invention adopts high-speed conditions to enter the emulsification pump for emulsification, so that the emulsion particle size is smaller and the stability is better.

[0007] A. Defoaming active ingredients

[0008] The defoaming active material of the present invention is prepared by known techniques of technicians, including polysiloxane, hydrophobic silica, silicone resin, coupling agent, silicone polyether and catalyst, and the amount of the defoaming active material is 10-30% of the total mass of the silicone emulsion.

[0009] B. Polyglyceryl Ricinoleate

[0010] The polyglycerol ricinoleate of the present invention is selected from glycerol ricinoleate, triglycerol ricinoleate, tetraglycerol ricinoleate, pentaglycerol ricinoleate, heptaglycerol ricinoleate, nonaglycerol ricinoleate and decaglycerol ricinoleate. The amount of polyglycerol ricinoleate is 1-5% of the total mass of the silicone emulsion.

[0011] C. Dispersant

[0012] The dispersant of the present invention is at least one dispersant having the following general structural formula:

[0013] R ’ (COOR ’’ ) z

[0014] In the molecular structure, R ’ is a straight chain or branched chain alkyl or aryl group containing 1 to 30 carbon atoms, R ’’ It is a straight or branched alkyl group containing 1 to 30 carbon atoms, and z is 1 or 2; preferably dioctyl adipate, diisodecyl adipate, dioctyl azelate, dioctyl sebacate, 2,2,4-trimethyl-1,3-pentanediol diisobutyrate, butyl stearate, diethylene glycol di-2-ethyl ester, isooctyl stearate, dibutyl phthalate, dimethyl phthalate, and diethyl phthalate. The amount of the dispersant is 5 to 15% of the total mass of the silicone emulsion.

[0015] D. Polyglycol oleate

[0016] The molecular weight of the polyglycol oleate of the present invention is 200-2000, and is selected from polyethylene glycol 400 monooleate, polyethylene glycol 400 dioleate, polyethylene glycol 600 monooleate, polyethylene glycol 600 dioleate, polyethylene glycol 800 monooleate, polyethylene glycol 800 dioleate, polypropylene glycol 800 dioleate, polypropylene glycol 600 dioleate, polypropylene glycol 1000 dioleate, polypropylene glycol 2000 dioleate, polypropylene glycol 200 dioleate, polypropylene glycol 400 dioleate; the amount of the polyglycol oleate is 1-5% of the total mass of the silicone emulsion.

[0017] E. Silicone polyether

[0018] The structural formula of the silicone polyether of the present invention is as follows:

[0019]

[0020] The letter R 2 is methyl, ethyl, propyl, butyl or phenyl; R 3 is a hydrogen atom, a methyl group, an ethyl group, a propyl group or a butyl group; subscripts r and s are the polymerization degrees of the silicon chain segments, s is an integer of 1 to 50, and r is an integer of 1 to 200; subscripts e and f are the polymerization degrees of ethylene oxide (EO) and propylene oxide (PO), respectively, and both e and f are integers of 1 to 50; subscript t is the polymerization degree of -CH2, which is an integer of 1 to 6. The amount of silicone polyether used accounts for 2 to 15% of the total mass of the silicone emulsion.

[0021] F. Thickener

[0022] According to the requirements for the viscosity of the emulsion, a thickener can be added. The thickener includes polyacrylamide, carbomer, xanthan gum, cellulose ethers, and polyacrylates. The preferred thickener is a polyacrylate thickener. The amount of the thickener is 0.1 to 3% of the total mass of the silicone emulsion.

[0023] G. Water

[0024] Deionized water is selected as water, and the amount used is 50-70% of the total mass of the silicone emulsion.

[0025] A stable silicone emulsion, the preparation method of which is as follows:

[0026] ① Add the defoaming active substance and silicone polyether into a reaction vessel, add polyglycol oleate when the temperature rises to 50-90°C, and mix at 50-90°C for 0.5-3h to obtain mixture I;

[0027] ② Prepare thickener and water into thickened water;

[0028] ③ Then, at 50-80°C, thickening water is continuously added to mixture I, and the adding time is controlled within 0.5-2h to obtain a uniformly stirred mixture II;

[0029] ④ Add the dispersant and polyglycerol ricinoleate into the reaction container, heat to 50-80° C., and stir evenly to obtain mixture III;

[0030] ⑤ The mixture III and the mixture II are respectively fed into the emulsifying pump at the same time, and the rotation speed is controlled to be 10000-28000 rpm to obtain the silicone emulsion. DETAILED DESCRIPTION

[0031] 1. The defoaming active substance used in the present invention is prepared according to Example 5 of "Preparation of a Defoaming Agent Composition" with patent number 200910184385.0.

[0032] 2. The silicone polyethers used in the different silicone emulsions prepared by the method of the present invention are shown in the following table:

[0033]

[0034] Example 1

[0035] ① Add 15 parts of defoaming active ingredients and 15 parts of silicone polyether M1 into a reaction container, add 1 part of polyethylene glycol 400 monooleate when the temperature rises to 50°C, and mix at 50°C for 3 hours to obtain mixture Ⅰ1;

[0036] ② Prepare a polyacrylamide aqueous solution by adding 2 parts of polyacrylamide and 55 parts of deionized water;

[0037] ③ Then, at 60° C., the polyacrylamide aqueous solution was continuously added to the mixture Ⅰ1, and the adding time was controlled within 1.5 h to obtain a uniformly stirred mixture Ⅱ1;

[0038] ④ Add 10 parts of dioctyl adipate and 2 parts of tripolyglycerol ricinoleate into the reaction container, heat to 60°C, and stir evenly to obtain mixture III1;

[0039] ⑤ The mixture III1 and the mixture II1 are respectively fed into the emulsifying pump at the same time, and the rotation speed is controlled at 15000 rpm to obtain the silicone emulsion.

[0040] Example 2

[0041] ① Add 10 parts of defoaming active ingredients and 6 parts of silicone polyether M2 into a reaction container, add 5 parts of polyethylene glycol 600 dioleate when the temperature rises to 90°C, and mix at 90°C for 0.5h to obtain mixture I2;

[0042] ② Prepare a polyacrylate aqueous solution by mixing 1 part of polyacrylate with 70 parts of deionized water;

[0043] ③ Then, at 50°C, the polyacrylamide aqueous solution was continuously added to the mixture Ⅰ2, and the adding time was controlled within 2 hours to obtain a uniformly stirred mixture Ⅱ2;

[0044] ④ Add 5 parts of dimethyl phthalate and 3 parts of polyglycerol ricinoleate into a reaction container, heat to 70°C, and stir evenly to obtain a mixture III2;

[0045] ⑤ The mixture III2 and the mixture II2 are respectively fed into the emulsifying pump at the same time, and the rotation speed is controlled to be 20000 rpm to obtain the silicone emulsion.

[0046] Example 3

[0047] ① Add 30 parts of defoaming active ingredients and 3 parts of silicone polyether M3 into a reaction container, add 4 parts of polypropylene glycol 800 dioleate when the temperature rises to 60°C, and mix at 60°C for 2.5 hours to obtain mixture I3;

[0048] ② Prepare a xanthan gum solution by mixing 0.5 parts of xanthan gum and 50 parts of deionized water;

[0049] ③ Then, at 80° C., the xanthan gum aqueous solution was continuously added to the mixture Ⅰ3, and the adding time was controlled within 1 hour to obtain a uniformly stirred mixture Ⅱ3;

[0050] ④ Add 9 parts of isooctyl stearate and 3.5 parts of heptapolyglycerol ricinoleate into the reaction container, heat to 80°C, and stir evenly to obtain mixture III3;

[0051] ⑤ The mixture III3 and the mixture II3 are respectively fed into the emulsifying pump at the same time, and the rotation speed is controlled to be 10000 rpm to obtain the silicone emulsion.

[0052] Example 4

[0053] ① Add 10.5 parts of defoaming active ingredients and 12 parts of silicone polyether M4 into a reaction container, add 3 parts of polypropylene glycol 2000 dioleate when the temperature rises to 80°C, and mix at 80°C for 1.5 hours to obtain mixture I4;

[0054] ② Prepare a polyacrylate aqueous solution by adding 1.5 parts of polyacrylate and 60 parts of deionized water;

[0055] ③ Then, at 75° C., the polyacrylate aqueous solution was continuously added to the mixture Ⅰ4, and the adding time was controlled within 1.5 h to obtain a uniformly stirred mixture Ⅱ4;

[0056] ④ Add 12 parts of butyl stearate and 1 part of tetraglycerol ricinoleate into the reaction container, heat to 75°C, and stir evenly to obtain mixture III4;

[0057] ⑤ Mixture III4 and mixture II4 are respectively fed into the emulsifying pump at the same time, and the rotation speed is controlled to be 19000 rpm to obtain a silicone emulsion.

[0058] Example 5

[0059] ① Add 25 parts of defoaming active ingredients and 2.5 parts of silicone polyether M5 into a reaction container, add 2 parts of polypropylene glycol 200 dioleate when the temperature rises to 70°C, and mix at 70°C for 2 hours to obtain mixture I5;

[0060] ② Prepare a cellulose ether aqueous solution by adding 2.5 parts of cellulose ether and 53 parts of deionized water;

[0061] ③ Then, at 65° C., the polycellulose ether aqueous solution was continuously added to the mixture Ⅰ5, and the adding time was controlled within 2 hours to obtain a uniformly stirred mixture Ⅱ5;

[0062] ④ Add 10 parts of 2,2,4-trimethyl-1,3-pentanediol diisobutyrate and 5 parts of pentaglycerol ricinoleate into the reaction container, heat to 50°C, stir evenly, and obtain mixture III5;

[0063] ⑤ Mixture III5 and mixture II5 are respectively fed into the emulsifying pump at the same time, and the rotation speed is controlled to be 18000 rpm to obtain silicone emulsion.

[0064] Example 6

[0065] ① Add 10 parts of defoaming active ingredients and 2 parts of silicone polyether M6 into a reaction container, add 4 parts of polypropylene glycol 1000 dioleate when the temperature rises to 50°C, and mix at 50°C for 3 hours to obtain mixture I6;

[0066] ② Prepare a polyacrylate aqueous solution by mixing 3 parts of polyacrylate and 70 parts of deionized water;

[0067] ③ Then, at 70°C, the polyacrylate aqueous solution was continuously added to the mixture Ⅰ6, and the adding time was controlled within 1 hour to obtain a uniformly stirred mixture Ⅱ6;

[0068] ④ Add 8 parts of isooctyl stearate and 3 parts of decaglycerol ricinoleate into the reaction container, heat to 70°C, and stir evenly to obtain mixture III6;

[0069] ⑤ The mixture III6 and the mixture II6 are respectively fed into the emulsifying pump at the same time, and the rotation speed is controlled to be 22000 rpm to obtain the silicone emulsion.

[0070] Example 7

[0071] ① Add 15 parts of defoaming active ingredients and 6 parts of silicone polyether M7 into a reaction container, add 1 part of polyethylene glycol 800 monooleate when the temperature rises to 80°C, and mix at 80°C for 1.5 hours to obtain mixture I7;

[0072] ② Prepare a carbomer aqueous solution by mixing 3 parts of carbomer and 65 parts of deionized water;

[0073] ③ Then, at 80° C., the carbomer aqueous solution was continuously added to the mixture Ⅰ7, and the adding time was controlled within 0.5 h to obtain a uniformly stirred mixture Ⅱ7;

[0074] ④ Add 8 parts of dioctyl sebacate and 2 parts of glycerol ricinoleate into the reaction container, heat to 65°C, and stir evenly to obtain mixture III7;

[0075] ⑤ The mixture III7 and the mixture II7 are respectively fed into the emulsifying pump at the same time, and the rotation speed is controlled to be 25000 rpm to obtain the silicone emulsion.

[0076] Example 8

[0077] ① Add 20 parts of defoaming active ingredients and 8 parts of silicone polyether M8 into a reaction container, add 2 parts of polyethylene glycol 800 dioleate when the temperature rises to 90°C, and mix at 90°C for 1 hour to obtain mixture I8;

[0078] ② Prepare a polyacrylate aqueous solution by mixing 0.1 parts of polyacrylate and 50 parts of deionized water;

[0079] ③ Then, at 70° C., the polyacrylate aqueous solution was continuously added to the mixture Ⅰ8, and the adding time was controlled within 0.5 h to obtain a uniformly stirred mixture Ⅱ8;

[0080] ④ Add 15 parts of diisodecyl adipate and 4.9 parts of tripolyglycerol ricinoleate into the reaction container, heat to 55° C., and stir evenly to obtain mixture III8;

[0081] ⑤ The mixture III8 and the mixture II8 are respectively fed into the emulsifying pump at the same time, and the rotation speed is controlled to be 28000 rpm to obtain the silicone emulsion.

[0082] Comparative Example 1

[0083] ① Add 15 parts of defoaming active ingredients and 15 parts of silicone polyether M9 into a reaction vessel and mix at 50° C. for 3 hours to obtain a mixture I9;

[0084] ② Prepare a polyacrylamide aqueous solution by adding 2 parts of polyacrylamide and 55 parts of deionized water;

[0085] ③ Then, at 60° C., the polyacrylamide aqueous solution was continuously added to the mixture Ⅰ9, and the adding time was controlled within 1.5 hours to obtain a uniformly stirred mixture Ⅱ9;

[0086] ④ Add 11 parts of dioctyl adipate and 2 parts of tripolyglycerol ricinoleate into the reaction container, heat to 60°C, and stir evenly to obtain mixture III9;

[0087] ⑤ The mixture III9 and the mixture II9 are respectively fed into the emulsifying pump at the same time, and the rotation speed is controlled to be 15000 rpm to obtain the silicone emulsion.

[0088] Comparative Example 2

[0089] ① Add 10 parts of defoaming active ingredients and 6 parts of silicone polyether M10 into a reaction container, add 5 parts of polyethylene glycol 600 dioleate when the temperature rises to 90°C, and mix at 90°C for 0.5h to obtain mixture I10;

[0090] ② Prepare a polyacrylate aqueous solution by mixing 3 parts of polyacrylate and 70 parts of deionized water;

[0091] ③ Then, at 50° C., the polyacrylamide aqueous solution was continuously added to the mixture Ⅰ10, and the adding time was controlled within 2 hours to obtain a uniformly stirred mixture Ⅱ10;

[0092] ④ Add 6 parts of dimethyl phthalate and mixture II10 into the emulsifying pump respectively at the same time, control the rotation speed to 20000 rpm, and obtain silicone emulsion.

[0093] Comparative Example 3

[0094] ① Add 30 parts of defoaming active ingredients and 3 parts of silicone polyether M11 into a reaction container, add 4 parts of polypropylene glycol 800 dioleate, 9 parts of isooctyl stearate and 3.5 parts of heptapolyglycerol ricinoleate when the temperature rises to 60°C, and mix at 60°C for 2.5 hours to obtain mixture Ⅰ11;

[0095] ② Prepare a xanthan gum solution by mixing 0.5 parts of xanthan gum and 50 parts of deionized water;

[0096] ③ Then, at 80° C., the xanthan gum aqueous solution was continuously added to the mixture Ⅰ11, and the adding time was controlled within 1 hour to obtain a uniformly stirred mixture Ⅱ11;

[0097] ④ The mixture Ⅱ11 enters the emulsifying pump and controls the rotation speed to 10000 rpm to obtain a silicone emulsion.

[0098] Comparative Example 4

[0099] ① Add 10.5 parts of defoaming active ingredients and 12 parts of silicone polyether M12 into a reaction container, add 1 part of tetraglycerol ricinoleate when the temperature rises to 80°C, and mix at 80°C for 1.5 hours to obtain mixture I12;

[0100] ② Prepare a polyacrylate aqueous solution by adding 1.5 parts of polyacrylate and 60 parts of deionized water;

[0101] ③ Then, at 75° C., the polyacrylate aqueous solution was continuously added to the mixture Ⅰ12, and the adding time was controlled within 1.5 h to obtain a uniformly stirred mixture Ⅱ12;

[0102] ④ Add 12 parts of butyl stearate and 3 parts of polypropylene glycol 2000 dioleate into a reaction container, heat to 75°C, and stir evenly to obtain a mixture III12;

[0103] ⑤ The mixture III12 and the mixture II12 are respectively fed into the emulsifying pump at the same time, and the rotation speed is controlled to be 19000 rpm to obtain the silicone emulsion.

[0104] Comparative Example 5

[0105] ① Add 25 parts of defoaming active ingredients and 2.5 parts of silicone polyether M13 into a reaction vessel and mix at 70° C. for 2 hours to obtain mixture I13;

[0106] ② Prepare a cellulose ether aqueous solution by adding 2.5 parts of cellulose ether and 53 parts of deionized water;

[0107] ③ Then, at 65° C., the polycellulose ether aqueous solution was continuously added to the mixture Ⅰ13, and the adding time was controlled within 2 hours to obtain a uniformly stirred mixture Ⅱ13;

[0108] ④ Add 10 parts of 2,2,4-trimethyl-1,3-pentanediol diisobutyrate, 2 parts of polypropylene glycol 200 dioleate and 5 parts of pentaglycerol ricinoleate into a reaction container, heat to 50° C., stir evenly, and obtain mixture III13;

[0109] ⑤ The mixture III13 and the mixture II13 are respectively fed into the emulsifying pump at the same time, and the rotation speed is controlled to be 18000 rpm to obtain the silicone emulsion.

[0110] Performance Testing

[0111] (1) Stability at room temperature

[0112] The solid content of the organosilicon emulsions of Examples 1-8 and Comparative Examples 1-4 was uniformly diluted with water to 2%, and the precipitation on the liquid surface was observed after being placed at room temperature for 24 hours. The more precipitation, the worse the stability. The test results are as follows:

[0113]

[0114] (2) High temperature stability

[0115] The solid content of the organosilicon emulsions of Examples 1-8 and Comparative Examples 1-4 was uniformly diluted with water to 2%, and the temperature was slowly raised on an electric furnace. After boiling, the mixture was cooled to room temperature, and the precipitation on the liquid surface was observed. The test results are as follows:

[0116]

Claims

1. A stable silicone emulsion, characterized in that It is composed of the following components: A. Defoaming active ingredients The amount of the defoaming active substance used in the present invention is 10-30% of the total mass of the organosilicon emulsion; B. Polyglyceryl Ricinoleate The amount of polyglycerol ricinoleate used in the present invention is 1 to 5% of the total mass of the silicone emulsion; C. Dispersant The amount of the dispersant used in the present invention is 5 to 15% of the total mass of the organosilicon emulsion; D. Polyglycol oleate The amount of the polyglycol oleate used in the present invention is 1 to 5% of the total mass of the organosilicon emulsion; E. Silicone polyether The amount of the silicone polyether of the present invention is 2-15% of the total mass of the organosilicon emulsion; F. Thickener The amount of the thickener used in the present invention is 0.1 to 3% of the total mass of the silicone emulsion; G. Water The amount of water used in the present invention is 50-70% of the total mass of the organosilicon emulsion; A method for preparing a stable silicone emulsion, the specific steps of which are as follows: ① Add the defoaming active substance and silicone polyether into a reaction vessel, add polyglycol oleate when the temperature rises to 50-90°C, and mix at 50-90°C for 0.5-3h to obtain mixture I; ② Prepare thickener and water into thickened water; ③ Then, at 50-80°C, thickening water is continuously added to mixture I, and the adding time is controlled within 0.5-2h to obtain a uniformly stirred mixture II; ④ Add the dispersant and polyglycerol ricinoleate into the reaction container, raise the temperature to 50-80° C., and stir evenly to obtain mixture III; ⑤ The mixture III and the mixture II are respectively fed into the emulsifying pump at the same time, and the rotation speed is controlled to be 10000-28000 rpm to obtain the silicone emulsion.

2. A stable silicone emulsion according to claim 1, characterized in that The defoamer active material is prepared by a technique known to technicians, and includes polysiloxane, hydrophobic silica, organic silicone resin, coupling agent, silicone polyether and catalyst.

3. A stable silicone emulsion according to claim 1, characterized in that The polyglycerol ricinoleate is selected from glycerol ricinoleate, triglycerol ricinoleate, tetraglycerol ricinoleate, pentaglycerol ricinoleate, heptaglycerol ricinoleate, nonaglycerol ricinoleate and decaglycerol ricinoleate.

4. A stable silicone emulsion according to claim 1, characterized in that The dispersant is at least one dispersant having the following general structural formula: R ’ (COOR ’’ ) z In the molecular structure, R ’ is a straight chain or branched chain alkyl or aryl group containing 1 to 30 carbon atoms, R ’’ It is a straight or branched alkyl group containing 1 to 30 carbon atoms, and z is 1 or 2.

5. A stable silicone emulsion according to claim 1, characterized in that The molecular weight of the polyglycol oleate is between 200 and 2000.

6. A stable silicone emulsion according to claim 1, characterized in that The structural formula of the silicone polyether is as follows: The letter R 2 is methyl, ethyl, propyl, butyl or phenyl; R 3 is a hydrogen atom, a methyl group, an ethyl group, a propyl group or a butyl group; subscripts r and s are the polymerization degrees of the silicon chain segments, s is an integer of 1 to 50, and r is an integer of 1 to 200; subscripts e and f are the polymerization degrees of ethylene oxide (EO) and propylene oxide (PO), respectively, and both e and f are integers of 1 to 50; subscript t is the polymerization degree of -CH2, which is an integer of 1 to 6.

7. A stable silicone emulsion according to claim 1, characterized in that The thickener includes polyacrylamide, carbomer, xanthan gum, cellulose ethers and polyacrylates.

8. A stable silicone emulsion according to claim 1, characterized in that The water is deionized water.

9. A stable silicone emulsion according to claim 1, characterized in that The polyglycol oleate is selected from polyethylene glycol 400 monooleate, polyethylene glycol 400 dioleate, polyethylene glycol 600 monooleate, polyethylene glycol 600 dioleate, polyethylene glycol 800 monooleate, polyethylene glycol 800 dioleate, polypropylene glycol 800 dioleate, polypropylene glycol 600 dioleate, polypropylene glycol 1000 dioleate, polypropylene glycol 2000 dioleate, polypropylene glycol 200 dioleate, and polypropylene glycol 400 dioleate.

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