Polymeric amino silicone oil emulsion and preparation method thereof

The preparation of nanoscale polymerized amino silicone oil emulsions by emulsion polymerization solves the problems of cumbersome production, high energy consumption and poor stability in existing technologies. It enables the application of highly stable and uniformly dispersed amino silicone oil emulsions in shampoos and conditioners, improving the smoothness and antibacterial properties of the products.

CN120888185APending Publication Date: 2025-11-04HUBEI XINGRUI SILICON MATERIAL CO LTD
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Patent Information

Application Number
CN202510853589.8
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-06-24
Publication Date
2025-11-04

AI Technical Summary

Technical Problem

The existing production process of polymeric amino silicone oil emulsion is cumbersome, time-consuming, energy-intensive, requires a large amount of emulsifier, has poor product stability, requires excessive emulsifier to achieve nanoscale dispersion, and is prone to separation during storage.

Method used

A nanoscale amino silicone oil emulsion is prepared by emulsion polymerization using cationic surfactants such as imidazole ionic liquids and nonionic surfactants such as polyoxyethylene ethers. The emulsion contains octamethylsiloxane, imidazole ionic liquids, nonionic surfactants, catalysts, coupling agents, pH adjusters, stabilizers, and preservatives, thus avoiding the disadvantages of mechanical emulsification.

Benefits of technology

A highly stable nanoscale polymerized amino silicone oil emulsion was prepared for use in shampoos and conditioners, providing smoothness, antibacterial and antistatic effects. It is evenly dispersed on the hair surface, enhancing shine and smoothness.

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Abstract

The invention provides a polymerized amino silicone oil emulsion and a preparation method thereof. The cleaning agent comprises the following components in parts by weight: octamethylsiloxane, an imidazolium ionic liquid surfactant, a nonionic surfactant polyoxyethylene ether, a catalyst, a coupling agent and water. The preparation method comprises the following steps: adding water, an imidazolium ionic liquid surfactant and a nonionic surfactant polyoxyethylene ether into a reaction kettle, heating and stirring; adding D4 and a coupling agent into the stirrer, uniformly mixing, and dropwise adding into the reaction kettle; after the reaction kettle is uniformly stirred, adding a catalyst, after the reaction is completed, adding a pH regulator, and terminating the reaction; adding a stabilizer and uniformly stirring; and detecting the finished product, and adding a preservative to obtain the polymerized amino silicon oil emulsion after the requirement is met. The polymerized amino silicon oil emulsion prepared by emulsion polymerization has high stability, and can uniformly smooth scales of hair and effectively maintain the smoothness and brightness of the hair when applied to shampoo products.
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Description

TECHNICAL FIELD

[0001] The present application relates to the field of washing and caring products, in particular to a polymeric amino silicone oil emulsion and a preparation method thereof. BACKGROUND

[0002] Amino silicone oil plays an important role in shampoo and hair conditioner due to its unique properties. Cationic surfactant imidazole ionic liquid has good emulsification, foaming, decontamination and sterilization, and can be firmly adsorbed on the damaged negatively charged hair surface through electrostatic attraction to repair damaged hair quality. Non-ionic surfactant polyoxyethylene ether has good emulsification, softness, and anti-static properties. Cationic surfactant imidazole ionic liquid and non-ionic surfactant polyoxyethylene ether can be used together to prepare amino silicone oil emulsion with excellent performance, while providing softness, brightness and antibacterial and antistatic effects. However, the current mainstream mechanical emulsification process has obvious shortcomings: the process needs to produce silicone crude oil base material, which not only has complicated and time-consuming process, but also brings high energy consumption; a large amount of emulsifier is needed; the finished product has poor stability during storage and is prone to delamination; if nanoscale dispersion effect is to be achieved, an excessive amount of emulsifier must be added. SUMMARY

[0003] The present application is to overcome the shortcomings of the prior art, i.e., the production of polymeric amino silicone oil emulsion needs to produce silicone crude oil base material, which not only has complicated and time-consuming process, but also brings high energy consumption; a large amount of emulsifier is needed; the finished product has poor stability during storage and is prone to delamination; if nanoscale dispersion effect is to be achieved, an excessive amount of emulsifier must be added. The present application provides a preparation method of polymeric amino silicone oil emulsion. The nanoscale amino silicone oil emulsion prepared by emulsion polymerization using cationic surfactant imidazole ionic liquid and non-ionic surfactant polyoxyethylene ether has high stability and provides multiple effects such as softness, antibacterial, and antistatic, which can be applied to shampoo and hair conditioner products, can be uniformly dispersed in the system, and can effectively maintain the softness and brightness of the hair.

[0004] In addition, the present application also provides a preparation method of the polymeric amino silicone oil emulsion.

[0005] The technical scheme of the present application is as follows: The polymeric amino silicone oil emulsion comprises the following raw materials in parts by weight: Octamethylsiloxane D4: 20-30 parts; Imidazole ionic liquid surfactant: 1-10 parts; Non-ionic surfactant polyoxyethylene ether: 5-13 parts; Catalyst: 1-5 parts; Coupling agent: 0.5-3 parts; Water: 30-50 parts.

[0006] The imidazole ionic liquid surfactant includes any one or more of C 10 mimBr, C 12 mimBr, C 14 mimBr, C 16 mimBr.

[0007] The non-ionic surfactant polyoxyethylene ether includes any one of isomeric tridecanol polyoxyethylene ether E-1309, lauryl alcohol polyoxyethylene ether XL-45 or fatty alcohol polyoxyethylene ether AEO-9.

[0008] The coupling agent includes any one of N-2-aminoethyl-3-aminopropyl trimethoxysilane KH-792, N-2-aminoethyl-3-aminopropyl methyldimethoxysilane Si-602 and 3-aminopropyl triethoxysilane KH-550.

[0009] The catalyst includes any one of potassium hydroxide, dibutyltin dimethylsilanediolate, stannous octoate, dibutyltin bis (dodecylthio), dibutyltin diacetate.

[0010] The raw material further includes a pH adjuster: 1-5 parts; a preservative: 0.1-0.5 parts; a stabilizer: 0.1-0.5 parts.

[0011] The pH adjuster is at least one of acetic acid, citric acid, sulfuric acid, lactic acid; The preservative includes phenoxyethanol or carboxin; The stabilizer includes any one of glycerol, cetylstearyl alcohol or polyvinyl alcohol.

[0012] The preparation method of the polymeric amino silicone oil emulsion, the raw material of the polymeric amino silicone oil emulsion includes the following steps: Step 1: the imidazole ionic liquid surfactant, non-ionic surfactant polyoxyethylene ether is added with water, heated and stirred uniformly; Step 2: further heating and stirring, the mixed solution of D4 and coupling agent is added dropwise in step 1; Step 3: after stirring uniformly in step 2, the catalyst is added, and the reaction is carried out for 8-10 hours; Step 4: after the reaction is completed, the temperature is lowered to room temperature, the pH adjuster is added to terminate the reaction, and then the stabilizer and preservative are added to obtain the product.

[0013] In step 1, the stirring is uniform at 40-50℃; in step 2, the stirring is carried out at 60-70℃ under further heating and dropwise addition of the mixed solution of D4 and coupling agent.

[0014] The present application also provides a shampoo or hair conditioner, raw materials comprising the polymeric amino silicone oil emulsion or the polymeric amino silicone oil emulsion prepared by the method.

[0015] The present application also provides the use of the polymeric amino silicone oil emulsion in the preparation of a shampoo or hair conditioner. The polymeric amino silicone oil emulsion provided by the present application can be uniformly dispersed in the system when used to prepare a shampoo or hair conditioner product with other conventional auxiliaries, effectively maintaining the softness and brightness of the hair.

[0016] Compared with the prior art, the present application has the following beneficial effects: The polymeric amino silicone oil emulsion obtained by emulsion polymerization in the present application avoids the problems that may occur in mechanical emulsification; the polymeric amino silicone oil emulsion prepared by emulsion polymerization using cationic surfactant imidazole ionic liquid and nonionic surfactant polyoxyethylene ether is uniform and stable, with a nanoscale particle size (D90 controlled at 300-900 nm; D50 at 100-600 nm), and can be quickly and uniformly adsorbed on the hair, enhancing the gloss and antibacterial and antistatic properties of the hair. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 Particle size distribution graph of the polymeric amino silicone oil emulsion of Example 4. DETAILED DESCRIPTION

[0018] The present application will be further described below in conjunction with the drawings and examples.

[0019] To better illustrate the purpose, technical solution and advantages of the present application, the present application will be further described below in conjunction with specific examples. Those skilled in the art should understand that the specific examples described herein are only used to explain the present application and do not limit the present application. In the examples, the experimental methods used are conventional methods unless otherwise specified, and the materials, reagents, etc. used are commercially available unless otherwise specified.

[0020] Example 1 The polymeric amino silicone oil emulsion contains, by weight fraction: Octamethylsiloxane (D4): 25 parts; Imidazole ionic liquid surfactant C 10 mimBr: 10 parts; Fatty alcohol polyoxyethylene ether (AEO-9): 13 parts; Catalyst: 1 part; Coupling agent: 0.5 parts; pH adjuster: 1 part; Preservative: 0.2 parts; Stabilizer: 0.3 parts; Water: 49 parts.

[0021] The preparation method of the polymeric amino silicone oil emulsion comprises the following steps: Step 1: water, imidazole ionic liquid surfactant C 10 mimBr, fatty alcohol polyoxyethylene ether (AEO-9) are added into a reaction kettle; Step 2: the reaction kettle is opened, and a constant temperature electric heating jacket is used to heat to 45℃ for stirring; Step 3: D4 and a coupling agent are added into a stirrer and uniformly mixed; Step 4: the heating jacket in step 2 is heated to 60℃, and the mixed solution in step 3 is added dropwise into the reaction kettle through a constant pressure dropping funnel, and the dropping is completed in 1.5-2 hours; Step 5: after the reaction kettle in step 4 is uniformly stirred, a catalyst is added, and the reaction is carried out for 8-10 hours; Step 6: after the reaction is completed, the temperature is lowered to 30℃, a pH adjuster is added to adjust the pH value, and the reaction is terminated; Step 7: a stabilizer is added into the reaction kettle and uniformly stirred; Step 8: the finished product is detected, and after the required value is reached, a preservative is added for packaging to obtain the polymeric amino silicone oil emulsion.

[0022] The isomeric alcohol polyoxyethylene ether added in step 1 is fatty alcohol polyoxyethylene ether (AEO-9).

[0023] The coupling agent added in step 3 is N-2-aminoethyl-3-aminopropyl trimethoxysilane (KH-792).

[0024] The mixed solution in step 4 is added dropwise for 1.5 hours.

[0025] The catalyst dibutyltin dilaurate is added in step 5, and the reaction is carried out for 8 hours.

[0026] The pH adjuster added in step 6 is acetic acid, and the pH value is detected by a Mettler pH meter.

[0027] The stabilizer in step 7 is glycerol.

[0028] The preservative in step 8 is phenoxyethanol, and the particle size diameter D90 is 0.836 μm and the D50 is 0.589 μm, which are measured by a particle size instrument.

[0029] Example 2 The polymeric amino silicone oil emulsion contains, in parts by weight: Octamethylsiloxane (D4): 25 parts; Imidazole ionic liquid surfactant C 12 mimBr: 10 parts; Fatty alcohol polyoxyethylene ether (AEO-9): 13 parts; Catalyst: 1 part; Coupling agent: 0.5 parts; pH adjuster: 1 part; Preservative: 0.2 parts; Stabilizer: 0.3 parts; Water: 49 parts.

[0030] The preparation method of the polymeric amino silicone oil emulsion comprises the following steps: Step 1: water, imidazole ionic liquid surfactant C 12 mimBr, fatty alcohol polyoxyethylene ether (AEO-9) are added to the reaction kettle; Step 2: turn on the reaction kettle and use a constant temperature electric heating jacket to heat to 45°C and stir; Step 3: add D4 and coupling agent to the stirrer and mix uniformly; Step 4: heat the heating jacket in step 2 to 60°C, and drop the mixed solution in step 3 into the reaction kettle through a constant pressure dropping funnel, and drop for 1.5-2 hours; Step 5: after the reaction kettle in step 4 is stirred uniformly, add the catalyst and react for 8-10 hours; Step 6: after the reaction is completed, cool to 30°C, add the pH adjuster, adjust the pH value, and terminate the reaction; Step 7: add the stabilizer to the reaction kettle and stir uniformly; Step 8: detect the finished product, add the preservative for packaging after reaching the required value, and obtain the polymeric amino silicone oil emulsion.

[0031] The isomeric alcohol polyoxyethylene ether added in step 1 is fatty alcohol polyoxyethylene ether (AEO-9).

[0032] The coupling agent added in step 3 is N-2-aminoethyl-3-aminopropyl trimethoxysilane (KH-792).

[0033] The mixed solution in step 4 is dropped for 1.5 hours.

[0034] The catalyst stannous octoate is added in step 5 and reacts for 8 hours.

[0035] The pH adjuster added in step 6 is acetic acid, and the pH value is detected by a Mettler pH meter.

[0036] The stabilizer in step 7 is glycerol.

[0037] The preservative in step 8 is phenoxyethanol, and the particle size diameter D90 is 0.752 μm and the D50 is 0.503 μm, which are determined by sampling with a particle size analyzer.

[0038] Example 3 The polymeric amino silicone oil emulsion contains, by weight fraction: Octamethylsiloxane (D4): 25 parts; Imidazole ionic liquid surfactant C 14 mimBr: 10 parts; Fatty alcohol polyoxyethylene ether (AEO-9): 13 parts; Catalyst: 1 part; Coupling agent: 0.5 parts; pH adjuster: 1 part; Preservative: 0.2 parts; Stabilizer: 0.3 parts; Water: 54 parts.

[0039] The preparation method of the polymeric amino silicone oil emulsion comprises the following steps: Step 1: add water, imidazole ionic liquid surfactant C 14 mimBr, fatty alcohol polyoxyethylene ether (AEO-9) into a reaction kettle; Step 2: start the reaction kettle and use a constant temperature electric heating jacket to heat to 45°C and stir; Step 3: add D4 and coupling agent into the stirrer and mix uniformly; Step 4: heat the heating jacket in step 2 to 60°C, and drop the mixed solution in step 3 into the reaction kettle through a constant pressure dropping funnel, and drop for 1.5-2 hours; Step 5: after the reaction kettle in step 4 is stirred uniformly, add a catalyst and react for 8-10 hours; Step 6: after the reaction is completed, cool to 30°C, add a pH adjuster, adjust the pH value, and terminate the reaction; Step 7: add a stabilizer into the reaction kettle and stir uniformly; Step 8: detect the finished product, add a preservative for packaging after reaching the required value, and obtain the polymeric amino silicone oil emulsion.

[0040] The isomeric alcohol polyoxyethylene ether added in step 1 is fatty alcohol polyoxyethylene ether (AEO-9).

[0041] The coupling agent added in step 3 is N-2-aminoethyl-3-aminopropyl trimethoxysilane (KH-792).

[0042] The mixed solution in step 4 is dropped for 1.5 hours.

[0043] The catalyst dibutyl tin diacetate is added in step 5 and reacts for 8 hours.

[0044] The pH regulator added in step 6 is acetic acid, and the pH value is detected by a Mettler pH meter.

[0045] The stabilizer in step 7 is glycerol.

[0046] The preservative in step 8 is phenoxyethanol, and the particle size diameter D90 is 0.649 μm and D50 is 0.372 μm measured by a particle size analyzer.

[0047] Example 4 The polymeric amino silicone oil emulsion contains, by weight fraction: Octamethylsiloxane (D4): 25 parts; Imidazolium ionic liquid surfactant C 16 mimBr: 10 parts; Fatty alcohol polyoxyethylene ether (AEO-9): 13 parts; Catalyst: 1 part; Coupling agent: 0.5 parts; pH regulator: 1 part; Preservative: 0.2 parts; Stabilizer: 0.3 parts; Water: 59 parts.

[0048] The preparation method of the polymeric amino silicone oil emulsion comprises the following steps: Step 1: Add water, imidazolium ionic liquid surfactant C 16 mimBr, and fatty alcohol polyoxyethylene ether (AEO-9) into a reaction kettle; Step 2: Start the reaction kettle and use a constant temperature electric heating jacket to heat to 45°C and stir; Step 3: Add D4 and coupling agent into the stirrer and mix uniformly; Step 4: Heat the heating jacket in step 2 to 60°C, and drop the mixed solution in step 3 into the reaction kettle through a constant pressure dropping funnel, and drop for 1.5-2 hours; Step 5: After the reaction kettle in step 4 is stirred uniformly, add a catalyst and react for 8-10 hours; Step 6: After the reaction is completed, cool to 30°C, add a pH regulator to adjust the pH value, and terminate the reaction; Step 7: Add a stabilizer into the reaction kettle and stir uniformly; Step 8: Detect the finished product, add a preservative for packaging after reaching the required value, and obtain the polymeric amino silicone oil emulsion.

[0049] The isomeric alcohol polyoxyethylene ether added in step 1 is fatty alcohol polyoxyethylene ether (AEO-9).

[0050] The coupling agent added in step 3 is N-2-aminoethyl-3-aminopropyl trimethoxysilane (KH-792).

[0051] The mixed solution in step 4 is dropped for 1.5 hours.

[0052] The catalyst potassium hydroxide is added in step 5, and the reaction is carried out for 8 hours.

[0053] The pH adjuster added in step 6 is acetic acid, and the pH value is detected by a Mettler pH meter.

[0054] The stabilizer in step 7 is glycerol.

[0055] The preservative in step 8 is phenoxyethanol, and the particle size diameter D90 is 0.394 μm and D50 is 0.162 μm measured by a particle size analyzer.

[0056] Example 5 The polymeric amino silicone oil emulsion contains, by weight fraction: Octamethylsiloxane (D4): 25 parts; Imidazolium ionic liquid surfactant C 16 mimBr: 10 parts; Lauryl alcohol polyoxyethylene ether (XL-45): 13 parts; Catalyst: 1 part; Coupling agent: 0.5 parts; pH adjuster: 1 part; Preservative: 0.2 parts; Stabilizer: 0.3 parts; Water: 59 parts.

[0057] The preparation method of the polymeric amino silicone oil emulsion comprises the following steps: Step 1: water, imidazolium ionic liquid surfactant C 16 mimBr, lauryl alcohol polyoxyethylene ether (XL-45) are added into a reaction kettle; Step 2: the reaction kettle is opened, and a constant temperature electric heating jacket is used to heat to 45°C for stirring; Step 3: D4 and a coupling agent are added into a stirrer and mixed uniformly; Step 4: the heating jacket in step 2 is heated to 60°C, and the mixed solution in step 3 is dropped into the reaction kettle through a constant pressure dropping funnel, and the dropping is completed for 1.5-2 hours; Step 5: after the reaction kettle in step 4 is stirred uniformly, a catalyst is added, and the reaction is carried out for 8-10 hours; Step 6: after the reaction is completed, the temperature is lowered to 30°C, a pH adjuster is added, the pH value is adjusted, and the reaction is terminated; Step 7: Add stabilizer to the reaction kettle and stir until uniform; Step 8: Test the finished product, and when the required value is reached, add a preservative for packaging to obtain a polymeric amino silicone oil emulsion.

[0058] The isomeric alcohol polyoxyethylene ether added in step 1 is lauryl alcohol polyoxyethylene ether (XL-45).

[0059] The coupling agent added in step 3 is N-2-aminoethyl-3-aminopropyl trimethoxysilane (KH-792).

[0060] The mixed solution of step 4 is added dropwise for 1.5 hours.

[0061] The catalyst potassium hydroxide added in step 5 reacts for 8 hours.

[0062] The pH adjuster added in step 6 is acetic acid, and the pH value is detected by a Mettler pH meter.

[0063] The stabilizer of step 7 is glycerol.

[0064] The preservative of step 8 is phenoxyethanol, and the particle size diameter D90 is 0.485 μm and D50 is 0.253 μm as determined by sampling with a particle size analyzer.

[0065] Comparative Example 1 Step 1: First, add 90 g of amino silicone oil, 3 g of polyether silicone oil, 12 g of 1309 emulsifier, 3 g of 1304 emulsifier, 2 g of isopropyl alcohol solvent, and 5 g of ethylene glycol monobutyl ether into a 500 mL beaker, stir at a speed of 2000 r / min for 20 min; Step 2: Add 46 g of water and stir for 10 min; Step 3: Add a mixture of acetic acid (0.5 g) and water (2 g) dropwise into the beaker, and continue stirring for 20 min; Step 4: Add 100 g of water and stir for 10 min; Step 5: Add a mixture of acetic acid (0.5 g) and water (2 g) dropwise into the beaker, and continue stirring for 20 min; Step 6: Add 100 g of water and stir for 10 min, then add a preservative to stop stirring, defoam, and package to obtain an amino silicone oil emulsion.

[0066] The preservative of step 6 is phenoxyethanol, and the particle size diameter D90 is 4.561 μm and D50 is 9.732 μm as determined by sampling with a particle size analyzer.

[0067] Comparative Example 2 The polymeric amino silicone oil emulsion contains, by weight: Octamethyl siloxane (D4): 25 parts; Cetyl trimethyl ammonium chloride: 10 parts; Fatty alcohol polyoxyethylene ether (AEO-9): 13 parts; Catalyst: 1 part; Coupling agent: 0.5 parts; pH regulator: 1 part; Preservative: 0.2 parts; Stabilizer: 0.3 parts; Water: 59 parts.

[0068] The preparation method of the polymeric amino silicone oil emulsion comprises the following steps: Step 1: water, fatty alcohol polyoxyethylene ether (AEO-9) are added to the reaction kettle; Step 2: the reaction kettle is opened, and the constant temperature electric heating jacket is used to heat to 45°C for stirring; Step 3: D4 and the coupling agent are added to the stirrer and mixed uniformly; Step 4: the heating jacket in step 2 is heated to 60°C, and the mixed solution in step 3 is added dropwise into the reaction kettle through the constant pressure dropping funnel, and the dropping is completed in 1.5-2 hours; Step 5: after the reaction kettle in step 4 is stirred uniformly, the catalyst is added, and the reaction is carried out for 8-10 hours; Step 6: after the reaction is completed, the temperature is lowered to 30°C, the pH regulator is added, the pH value is adjusted, and the reaction is terminated; Step 7: the stabilizer is added to the reaction kettle and stirred uniformly; Step 8: the finished product is detected, the preservative is added for packaging after the required value is reached, and the polymeric amino silicone oil emulsion is obtained.

[0069] The isomeric alcohol polyoxyethylene ether added in step 1 is fatty alcohol polyoxyethylene ether (AEO-9).

[0070] The coupling agent added in step 3 is N-2-aminoethyl-3-aminopropyl trimethoxysilane (KH-792).

[0071] The mixed solution in step 4 is added dropwise for 1.5 hours.

[0072] The catalyst potassium hydroxide is added in step 5, and the reaction is carried out for 8 hours.

[0073] The pH regulator added in step 6 is acetic acid, and the pH value is detected by a Mettler pH meter.

[0074] The stabilizer in step 7 is glycerol.

[0075] The preservative of step 8 is phenoxyethanol, and the particle size diameter D90 is 1.94 μm and D50 is 0.662 μm determined by sampling with a particle size analyzer.

[0076] The amino silicone oil emulsion prepared in the above examples and comparative examples was subjected to stability test, and the test method was as follows: 6 ml of the emulsion was placed in a 10 ml centrifuge tube, and was centrifuged at 3000, 5000, 7000 rpm for 30 min, respectively, and the delamination of the emulsion was observed, and the results are shown in Table 1.

[0077] Table 1 Centrifugal stability

[0078] As can be seen from the results in Table 1, by optimizing the content of D4, the emulsifier and the type of additive, a uniform and stable polymeric amino silicone oil emulsion can be obtained.

[0079] The amino silicone oil emulsion prepared in the above examples and comparative examples was used to prepare shampoo, and the content of the amino silicone oil emulsion in the shampoo was 2 wt%.

[0080] The formula is as follows:

[0081] Two hair strands were selected from each group, a total of 6 hair strands, and the hair strands were washed with clean water, dried after washing, and the mass of the hair in each group was kept basically the same.

[0082] Baseline wet combing test (W0): the test hair strand group was fully wetted with clean water, the water content was kept basically the same, and the combing cycle test was carried out.

[0083] Baseline dry combing test (D0): the test hair strand group after the baseline wet combing test was dried with a hair dryer, and the combing cycle test was carried out.

[0084] Sample wet combing test (W1): the test hair strand group after the baseline dry combing test was soaked with 20 g of water according to 0.2 g of shampoo per gram of hair strand, washed for 3 times, the water content was kept basically the same, and the combing cycle test was carried out.

[0085] Sample dry combing test (D1): the test hair strand group after the sample wet combing test was dried with a hair dryer, and the combing cycle test was carried out.

[0086] Wet combing improvement degree = (W0-W1) / W0*100% Dry combing improvement degree = (D0-D1) / D0*100% The experimental results are as follows: Table 2 Wet combing improvement degree

[0087] Table 3 Dry hair combing improvement degree

[0088] From the above test results, the shampoo made of the silicone oil emulsion of the example has a greater improvement degree of wet hair and dry hair friction than the shampoo made of the mechanically emulsified amino silicone oil emulsion, indicating that the tested sample can be more uniformly dispersed on the hair surface to improve the hair friction (slip feeling) effect, i.e. the effect of repairing damaged hair quality is better.

[0089] The above examples are only illustrative of the principles and best modes of the present application, and are not intended to limit the scope of the present application. Although the present application has been described in detail with reference to the preferred embodiments, various changes and modifications can be made to the present application, and such changes and modifications are included in the scope of the present application.

Claims

1. A polymeric amino silicone oil emulsion, characterized in that, The ingredients include the following by weight: Octamethylsiloxane D4: 20-30 parts; Imidazole ionic liquid surfactants: 1-10 parts; Nonionic surfactants, polyoxyethylene ethers: 5-13 parts; Catalyst: 1-5 parts; Coupling agent: 0.5-3 parts; Water: 30-50 parts.

2. The polymeric amino silicone oil emulsion according to claim 1, characterized in that, The imidazole-based ionic liquid surfactants include C 10 mimBr、C 12 mimBr、C 14 mimBr、C 16 Any one or more combinations of mimBr.

3. The polymeric amino silicone oil emulsion according to claim 1, characterized in that, The nonionic surfactant polyoxyethylene ethers mentioned include any one of isotridecyl polyoxyethylene ether E-1309, lauryl polyoxyethylene ether XL-45, or fatty alcohol polyoxyethylene ether AEO-9.

4. The polymeric amino silicone oil emulsion according to claim 1, characterized in that, The coupling agent includes any one of N-2-aminoethyl-3-aminopropyltrimethoxysilane KH-792, N-2-aminoethyl-3-aminopropylmethyldimethoxysilane Si-602, and 3-aminopropyltriethoxysilane KH-550.

5. The polymeric amino silicone oil emulsion according to claim 1, characterized in that, The catalyst includes any one of potassium hydroxide, dibutyltin disilicate, stannous octoate, di(dodecyl sulfide)dibutyltin, and dibutyltin diacetate.

6. The polymeric amino silicone oil emulsion according to any one of claims 1-5, characterized in that, The raw materials also include a pH adjuster: 1-5 parts; Preservative: 0.1-0.5 parts; Stabilizer: 0.1-0.5 parts.

7. The polymeric amino silicone oil emulsion according to claim 6, characterized in that, The pH adjuster is at least one of acetic acid, citric acid, sulfuric acid, and lactic acid; The preservatives mentioned include phenoxyethanol or Kathon; The stabilizer includes any one of glycerol, cetearyl alcohol, or polyvinyl alcohol.

8. A method for preparing a polymeric amino silicone oil emulsion, characterized in that, The method using the raw materials of the polymeric amino silicone oil emulsion according to any one of claims 1-5 includes the following steps: Step 1: Add imidazole ionic liquid surfactant and nonionic surfactant polyoxyethylene ether to water, heat and stir until homogeneous; Step 2: Under further heating and stirring conditions, add the mixed solution of D4 and coupling agent dropwise to the solution from Step 1; Step 3: After the mixture in Step 2 has been stirred evenly, add the catalyst and react for 8-10 hours; Step 4: After the reaction is complete, cool to room temperature, add a pH adjuster to terminate the reaction, and then add a stabilizer and preservative to obtain the product.

9. The method for preparing the polymeric amino silicone oil emulsion according to claim 6, characterized in that, In step 1, the mixture is stirred evenly at 40-50℃; in step 2, the temperature is further increased to 60-70℃ for stirring and the mixed solution of D4 and coupling agent is added dropwise.

10. A shampoo or conditioner, characterized in that, The raw materials include the polymeric amino silicone oil emulsion according to any one of claims 1-7 or the polymeric amino silicone oil emulsion prepared by the method according to any one of claims 8-9.