Water-dispersible polyether modified organic silicon elastomer gel as well as preparation method and application thereof

Abstract

The invention provides water-dispersible polyether modified organic silicon elastomer gel as well as a preparation method and application thereof. The water-dispersible polyether modified organic silicon elastomer gel is prepared from a reaction raw material mixture containing the following components: (A) polysilsesquioxane containing unsaturated groups, (B) organohydrogen siloxane and (C) polyether containing unsaturated groups in (D) carrier fluid through (E) hydrosilylation reaction catalyst catalytic reaction. The water-dispersible polyether modified organic silicon elastomer gel has a hydrophilic polyether group and an oleophylic silicon elastic structure, and can be dispersed in a water phase to form stable water emulsion system gel with elastomer characteristics. Meanwhile, the water-dispersible polyether modified organic silicon elastomer gel has a polysilsesquioxane resin structure, and can provide special skin feeling and film forming effect by combining with a reticular siloxane chain; the composition can be widely applied to cosmetics or personal care products.

Description

Technical Field

[0001] The invention belongs to the technical field of organic silicon, and specifically relates to a water-dispersible polyether-modified organic silicon elastomer gel and a preparation method and application thereof. Background Art

[0002] Silicone elastomer gel is a gel-like polymer formed by mixing an organosiloxane elastomer with a fluid carrier. It has a unique velvety and powdery feel and is widely used in the cosmetics industry. However, the unmodified silicone elastomer has poor film-forming effect and its compatibility with other ingredients is not ideal, so an emulsifier is often required in the formula. In order to improve the film-forming property and compatibility of silicone elastomers with other cosmetic ingredients, it is necessary to modify them, such as by inserting long-chain alkyl, polyether groups, amino or other organic functional groups. Silicone elastomers with polyether groups have a certain hydrophilicity, and their self-emulsifying effect makes their emulsification in water-based or water-containing cosmetics simple and convenient, and they can easily form a stable water-dispersible elastomer gel. In addition, polyether-modified elastomer gel can play a good role in formula thickening and has great application value.

[0003] CN110028793A discloses an organosilicon elastomer, a preparation method thereof and an organosilicon elastomer gel containing the same. The raw materials for preparing the organosilicon elastomer include: an organohydrogen polysiloxane containing at least 3 Si-H units in the molecule of component a, an unsaturated aliphatic hydrocarbon having an average number of unsaturated groups greater than 1 in the molecule of component b, a polysiloxane containing at least two unsaturated aliphatic hydrocarbon groups in the molecule of component c, an unsaturated polyether of component d and a hydrosilylation catalyst of component e. The organosilicon elastomer gel includes a carrier fluid and particles of the organosilicon elastomer dispersed therein. Although the organosilicon elastomer disclosed in the above patent has good compatibility with oils and fats and can absorb water for self-emulsification for use in water-based care products or cosmetics, the organosilicon elastomer gel cannot provide a good film-forming effect and has poor skin adhesion. Summary of the invention

[0004] In view of the deficiencies in the prior art, the object of the present invention is to provide a water-dispersible polyether-modified silicone elastomer gel and a preparation method and application thereof.

[0005] To achieve this object, the present invention adopts the following technical solutions: In a first aspect, the present invention provides a water-dispersible polyether-modified silicone elastomer gel, which is prepared from a reaction raw material mixture comprising the following components: (A) an unsaturated group-containing polysilsesquioxane containing at least two unsaturated hydrocarbon groups; (B) an organohydrogensiloxane containing at least two silicon-hydrogen bonds; (C) an unsaturated group-containing polyether containing at least one unsaturated hydrocarbon group; It is obtained by catalytic reaction of (E) hydrosilylation reaction catalyst in (D) carrier fluid.

[0006] Preferably, the molar ratio of the unsaturated groups in the component (A) to the silicon-hydrogen bonds in the component (B) is (0.1-1.5):1; for example, it can be 0.2:1, 0.3:1, 0.4:1, 0.5:1, 0.6:1, 0.7:1, 0.8:1, 0.9:1, 1:1, 1.1:1, 1.2:1, 1.31:1, 1.4:1, etc.

[0007] Preferably, the molar ratio of the unsaturated groups in the component (A) to the silicon-hydrogen bonds in the component (B) is (0.4-1):1.

[0008] Preferably, the molar ratio of the unsaturated groups in the component (C) to the silicon-hydrogen bonds in the component (B) is (0.1-1.5):1; for example, it can be 0.2:1, 0.3:1, 0.4:1, 0.5:1, 0.6:1, 0.7:1, 0.8:1, 0.9:1, 1:1, 1.1:1, 1.2:1, 1.3:1, 1.4:1, etc.

[0009] Preferably, the molar ratio of the unsaturated groups in the component (C) to the silicon-hydrogen bonds in the component (B) is (0.3-1):1.

[0010] Preferably, the molar ratio of total unsaturated groups to silicon-hydrogen bonds in the reaction raw material mixture is (0.8-2):1; for example, it can be 0.9:1, 1:1, 1.1:1, 1.2:1, 1.3:1, 1.4:1, 1:5, 1.6:1, 1.7:1, 1.8:1, 1.9:1, etc.

[0011] Preferably, the (A) polysilsesquioxane containing an unsaturated group has a structure as shown in chemical formula (I): (CH3)2R 1 SiO-[R 2 SiO 3 / 2 ] x [CH3SiO 3 / 2 ] y -SiR 3 (CH3)2 (Ⅰ), where R 1 , R 2 , R 3 Each is independently selected from a substituted or unsubstituted alkane group, and at least one of them is an unsaturated aliphatic hydrocarbon group; R 4are independently selected from substituted or unsubstituted saturated alkane groups (e.g., C1-C16 straight or branched alkyl groups, more preferably any one of methyl, propyl, octyl and hexadecyl), R 1 , R 2 , R 3 , R 4 The substituted substituent is selected from any one of an alkyl group, an alkenyl group, an aryl group, a hydroxyl group, a halogen group, an ether group, and an ester group; x=1~50, y=0~50; wherein (1~50) can be specifically 2, 4, 6, 10, 12, 14, 16, 18, 20, 22, 24, 26, 28, 30, 32, 34, 36, 38, 40, 42, 44, 46, 48, etc.; (0~50) can be specifically 1, 2, 4, 6, 10, 12, 14, 16, 18, 20, 22, 24, 26, 28, 30, 32, 34, 36, 38, 40, 42, 44, 46, 48, etc.

[0012] Preferably, x=2~14; y=0~16.

[0013] Preferably, the molecular weight of the component (A) is 4000-6000 g / mol.

[0014] Preferably, the alkenyl content of the component (A) is 2.4-4.5 wt %.

[0015] Preferably, the unsaturated aliphatic hydrocarbon group is an olefin unsaturated group; for example, it may be a C2-C8 straight-chain olefin or a C2-C8 branched-chain olefin.

[0016] Preferably, the unsaturated aliphatic hydrocarbon group is selected from any one of CH2=CH-, CH2=CH-CH2-, and CH2=C(CH3)-CH2CH2-.

[0017] Preferably, the (B) organohydrogensiloxane comprises pendant hydrogen-containing silicone oil and / or terminal hydrogen-containing silicone oil.

[0018] Preferably, the organohydrogensiloxane of component (B) has a structure as shown in chemical formula (II): (CH3)3SiO[(CH3)HSiO] x [(R1)2SiO] y -Si(CH3)3 (II), wherein x is a natural number from 2 to 20, for example, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, etc.; y is a natural number from 0 to 500, for example, 1, 10, 50, 100, 150, 200, 250, 300, 350, 400, 450, etc., and R1 is a C1~20 alkyl or aryl group, for example, methyl, ethyl, propyl, butyl, pentyl, octyl, phenyl, etc.

[0019] More preferably, x=4~10, y=10~100.

[0020] Preferably, the molecular weight of the component (B) is 4000-5000 g / mol.

[0021] Preferably, the SiH content of the component (B) is 0.1% to 2%.

[0022] Preferably, the (C) unsaturated polyether has a structure as shown in chemical formula (III): R4[(C2H4O) a (C3H6O) b ]H (III), wherein a and b are natural numbers ranging from 0 to 50, and a+b>2, and R4 is an unsaturated aliphatic hydrocarbon.

[0023] Preferably, a=10~22, for example, the values ​​may be 11, 12, 13, 14, 15, 16, 17, 18, 18, 19, 20, 21, etc.

[0024] b=0~12, for example, the possible values ​​are 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, etc.

[0025] Preferably, R4 is selected from any one of CH2=CH-, CH2=CH-CH2-, and CH2=C(CH3)-CH2CH2-.

[0026] Preferably, the fluid carrier of component (D) is one or more of low-viscosity polysiloxane, alkane or oil with a viscosity of 1-50 mPa·s.

[0027] Preferably, the low-viscosity polysiloxane is one or more of polydimethylsiloxane, C2-C16 fatty alkane-modified silicone oil, natural oil-modified silicone oil, and cyclopentasiloxane.

[0028] Preferably, the component (D) accounts for 60-90 wt % of the total feed ratio.

[0029] Preferably, the component (D) accounts for 70-85wt% of the total feed ratio.

[0030] Preferably, the alkane is isododecane and / or isohexadecane.

[0031] Preferably, the oil is any one or more of coconut oil, meadowfoam seed oleate, and olive oil.

[0032] Preferably, the component (E) hydrosilylation reaction catalyst comprises a platinum metal catalyst.

[0033] Preferably, the platinum metal catalyst is selected from one or more of chloroplatinic acid, Karstedt catalyst and Speier catalyst.

[0034] In a second aspect, the present invention provides a method for preparing the above-mentioned water-dispersible polyether-modified silicone elastomer gel, the preparation method comprising the following steps: adding the reaction raw material mixture, component (D) carrier fluid and component (E) hydrosilylation reaction catalyst into a disperser for reaction, and then grinding to obtain the water-dispersible polyether-modified silicone elastomer gel.

[0035] Preferably, the reaction temperature is 25-95°C.

[0036] Preferably, the reaction time is 3 to 8 hours.

[0037] Preferably, the equipment for grinding is selected from any one of a three-roller mill, a colloid mill and a ball mill.

[0038] Preferably, the preparation method further comprises the steps of: adding a polymerization inhibitor and mixing after grinding.

[0039] Preferably, the amount of the polymerization inhibitor added is 1 to 5 parts by weight.

[0040] Preferably, the polymerization inhibitor can be selected from one or more of tocopherol, vitamin A palmitate, triphenyl phosphate, olefins or silicone oil oligomers containing monounsaturated bonds.

[0041] In a third aspect, the present invention provides use of the above-mentioned water-dispersible polyether-modified silicone elastomer gel in cosmetics or personal care products.

[0042] Compared with the prior art, the present invention has the following beneficial effects: The water-dispersible polyether-modified silicone elastomer gel provided by the present invention is formed by catalytic addition of a polysilsesquioxane containing at least two unsaturated hydrocarbons and a polydimethylsiloxane containing a single unsaturated hydrocarbon polyether and at least two silicon-hydrogen bonds in a suitable fluid carrier. The water-dispersible polyether-modified silicone elastomer gel has a hydrophilic polyether group and a lipophilic silicone elastic structure, and can be dispersed in an aqueous phase to form a stable aqueous emulsion gel with elastomer properties. At the same time, the water-dispersible polyether-modified silicone elastomer gel has a polysilsesquioxane resin structure, which can provide a special skin feel and film-forming effect in combination with a network siloxane chain, and can be widely used in the fields of daily chemical products, personal care products, etc. DETAILED DESCRIPTION

[0043] The technical scheme of the present invention is further described below by specific embodiments. It should be understood by those skilled in the art that the embodiments are only to help understand the present invention and should not be regarded as specific limitations of the present invention. Unless otherwise specified, the reagents, methods and equipment used in the present invention are conventional reagents, methods and equipment in the art. In addition, about the "parts" and "%" in this specification, unless otherwise specified, they represent "parts by mass" and "mass %" respectively. And "molecular weight" is "number average molecular weight".

[0044] The following examples and comparative examples were tested using the following test methods.

[0045] Emulsification effect: 10g of water-dispersible polyether-modified silicone elastomer gel was mixed with 5g of deionized water and then sheared and dispersed to observe the emulsification effect of adding water by itself; and 10g of water-dispersible polyether-modified silicone elastomer gel, 0.2g of hydrophilic surfactant (PEG-10 stearate), and 10g of deionized water were mixed and sheared and dispersed to observe the emulsification effect of adding hydrophilic surfactant. According to the emulsification effect of adding water by itself and adding hydrophilic surfactant, it is divided into three levels: excellent, good, and poor according to the emulsification effect. Among them, "excellent" means that it can quickly form an oil-in-water cream by adding water by itself, and a stable water-in-oil emulsion can be quickly formed by adding hydrophilic surfactant; "good" means that an oil-in-water cream can be formed, and a stable water-in-oil emulsion can be formed by adding hydrophilic surfactant; "poor" means that it is difficult to form an oil-in-water cream, and the water-in-oil emulsion formed by adding hydrophilic surfactant will be stratified when standing.

[0046] Film-forming effect and skin feel: Mix 9g of water-dispersible polyether-modified silicone elastomer gel with 1g of color powder, apply directly to the skin on the back of the palm, wait for 30 minutes for it to dry, and feel its skin feel and film-forming effect. 1-5 points represent the quality of skin feel and film-forming effect, with 1 representing the worst and 5 representing the best.

[0047] The structural formulas of APEG-10, APEG-12 and APEG-15 described in the following examples and comparative examples are CH2=CHCH2O(CH2CH2O)n H, n=10, CH2=CHCH2O(CH2CH2O)n H, n=12 and CH2=CHCH2O(CH2CH2O)n H, n=15, respectively.

[0048] The side hydrogen-containing silicone oil used in the following examples has the following general structural formula: (CH3)3SiO[(CH3)HSiO] x [(CH3)2SiO] y -Si(CH3)3(II), x=2~10, y=10~100.

[0049] It should be noted that the following examples and comparative examples are A / n B It refers to the molar ratio of the unsaturated groups in the polysilsesquioxane containing unsaturated groups to the silicon hydrogen groups in the organohydrogensiloxane; n C / n B It refers to the molar ratio of the unsaturated groups in the unsaturated group-containing polyether to the silicon hydrogen groups in the organohydrogensiloxane.

[0050] Examples 1-3 Preparation of water-dispersible polyether-modified silicone elastomer gels with different carrier fluids Table 1 lists the raw materials and their weights of Examples 1 to 3, and lists the relevant performance test results. Among them, the structural formula of the polysilsesquioxane containing unsaturated groups is (CH3)2R 1 SiO-[R 2 SiO 3 / 2 ] x [CH3SiO 3 / 2 ] y -SiR 3 (CH3)2,R 1 and R 3 For vinyl, R 2 It is methyl, x=14, y=0, molecular weight is 4500, and vinyl content is 2.4%; the molecular weight of the side hydrogen silicone oil is 5000, SiH content is 0.2%; the polyether containing unsaturated groups is APEG-12 (chemical formula is CH2=CHCH2O(CH2CH2O)n H, n=12).

[0051] Table 1 Water-dispersible polyether-modified silicone elastomer gels with different carriers

[0052] Examples 1 to 3 are all prepared using the following preparation method, the only difference being that different carriers are used.

[0053] The specific preparation method is as follows: The raw materials shown in Table 1 above, polysilsesquioxane containing unsaturated groups, APEG-12, side hydrogen silicone oil, platinum catalyst, and carrier are put into a disperser for mixing and stirring, heated to 80°C for reaction for 8 hours, put into a three-roll grinder for grinding twice after the reaction is completed, and then add the polymerization inhibitor tocopherol and stir evenly. The infrared IR test shows that there is no SiH bond in the product, indicating that the SiH bond has been fully reacted. The application test shows that Example 2 has a better self-emulsification effect. It can quickly form an oil-in-water cream by adding water itself, and a stable water-in-oil emulsion can be quickly formed by adding a hydrophilic surfactant.

[0054] Examples 4-6 Preparation of water-dispersible polyether-modified silicone elastomer gels containing different unsaturated groups Table 2 lists the raw materials and their weights of Examples 4 to 6, and lists the relevant performance test results. Among them, the structural formula of the polysilsesquioxane containing unsaturated groups is (CH3)2R 1 SiO-[R 2 SiO 3 / 2 ] x [CH3SiO 3 / 2 ] y -SiR 3 (CH3)2,R 1 and R 3 For vinyl, R 2 =propyl, x=2, y=10, molecular weight is 4000, vinyl content is 2.7%, the molecular weight of side hydrogen silicone oil is 4600g / mol, and its SiH content is 0.15%; the polyethers containing unsaturated groups are APEG-10 (CH2=CHCH2O(CH2CH2O)nH, n=10), APEG-12 (CH2=CHCH2O(CH2CH2O)n H, n=12), and APEG-15 (CH2=CHCH2O(CH2CH2O)nH, n=15).

[0055] Table 2

[0056] Examples 4 to 6 are all prepared by the following preparation method, the only difference being that different polyethers containing unsaturated groups are used.

[0057] The specific preparation method is as follows: The raw materials shown in Table 2 above, polysilsesquioxane containing unsaturated groups, polyether containing unsaturated groups, hydrogen silicone oil, platinum catalyst, and 10CSt octyl silicone oil, were put into a disperser for mixing and stirring, heated to 60°C for reaction for 6 hours, put into a grinder for grinding twice after the reaction was completed, and then added with the polymerization inhibitor tocopherol and stirred evenly. The product was tested by infrared IR and showed that there was no SiH bond, indicating that all SiH bonds had reacted. The application test showed that Example 5 had a better self-emulsification effect, and water could be added to form an oil-in-water cream quickly, and a hydrophilic surfactant could be added to form a stable water-in-oil emulsion quickly.

[0058] Examples 7-9 Preparation of Water-Dispersible Polyether-Modified Silicone Elastomer Gels with Different Olefin / SiH Molar Ratios Table 3 lists the raw materials and their weights of Examples 7 to 9, and lists the relevant performance test results. Among them, the structural formula of the polysilsesquioxane containing unsaturated groups is (CH3)2R 1 SiO-[R2 SiO 3 / 2 ] x [CH3SiO 3 / 2 ] y -SiR 3 (CH3)2,R 1 and R 3 is methyl, R 2 =vinyl, x=2, y=16, molecular weight is 6000, vinyl content is 4.5%, molecular weight of side hydrogen silicone oil is 4600g / mol, and its SiH content is 0.15%; the polyether containing unsaturated groups is APEG-12 (chemical formula: CH2=CHCH2O(CH2CH2O)n H, n=12).

[0059] Table 3

[0060] Examples 7 to 9 are all prepared using the following preparation method, the only difference being the different molar ratios of olefin / SiH.

[0061] The specific preparation method is as follows: The raw materials shown in Table 3 above, polysilsesquioxane containing unsaturated groups, polyether containing unsaturated groups, hydrogen silicone oil, platinum catalyst, and 10CSt octyl silicone oil, were put into a disperser for mixing and stirring, heated to 90°C for reaction for 8 hours, and after the reaction was completed, put into a three-roll grinder for grinding twice, and then add the polymerization inhibitor tocopherol and stir evenly. The product was tested by infrared IR and no SiH bonds were present, indicating that all SiH bonds had reacted. The application test showed that Example 8 had a better self-emulsification effect, and water could be added to quickly form an oil-in-water cream, and a hydrophilic surfactant could be added to quickly form a stable water-in-oil emulsion.

[0062] Examples 10-14 Preparation of different n A / n B and n C / n B Water-dispersible polyether-modified silicone elastomer gel Among them, the structural formula of polysilsesquioxane containing unsaturated groups is (CH3)2R 1 SiO-[R 2 SiO 3 / 2 ] x [CH3SiO 3 / 2 ] y -SiR 3 (CH3)2, R 1 and R 3 For vinyl, R 2It is methyl, x=14, y=0, molecular weight is 4500, and vinyl content is 2.4%; the molecular weight of the side hydrogen silicone oil is 5000, SiH content is 0.2%; the polyether containing unsaturated groups is APEG-12 (chemical formula is CH2=CHCH2O(CH2CH2O)n H, n=12).

[0063] Table 4 lists the raw materials and their weights of Examples 10 to 14, and lists the relevant performance test results.

[0064] Table 4

[0065] Examples 10 to 14 were all prepared using the following preparation method, with the only difference being the different amounts of raw materials added.

[0066] The specific preparation method is as follows: The raw materials shown in Table 4 above, polysilsesquioxane containing unsaturated groups, polyether containing unsaturated groups, hydrogen silicone oil, platinum catalyst, and 10CSt octyl silicone oil, were put into a disperser for mixing and stirring, heated to 70°C for reaction for 8 hours, and after the reaction was completed, put into a three-roll grinder for grinding twice, and then add the polymerization inhibitor tocopherol and stir evenly. The product was tested by infrared IR and no SiH bonds were present, indicating that all SiH bonds had reacted. The application test showed that Example 10 and Example 11 had a better self-emulsification effect, and water could be added to quickly form an oil-in-water cream, and a hydrophilic surfactant could be added to quickly form a stable water-in-oil emulsion.

[0067] Comparative Example 1 The difference between this comparative example and Example 2 is that the polysilsesquioxane containing unsaturated groups is replaced by vinyl silicone oil (CH2=CH(CH3)2SiO[(CH3)2SiO] of the same mass in this comparative example. x -Si(CH3)2CH=CH2), with a molecular weight of about 4500 and a vinyl content of 2.4%).

[0068] The obtained water-dispersible polyether-modified silicone elastomer gel was tested by infrared IR and found that no SiH bonds were present in the product, indicating that all SiH bonds had reacted. The emulsification effect, film-forming effect and skin feel test were also conducted, and the results are shown in Table 5.

[0069] Comparative Example 2 The difference between this comparative example and Example 2 is that the side hydrogenated silicone oil is replaced by hydrogenated polysilsesquioxane (CH3)2HSiO-[CH3SiO 3 / 2 ] x-SiH(CH3)2 (molecular weight of about 5000, SiH content of 0.2%); replace the unsaturated polysilsesquioxane with an equal mass of vinyl silicone oil (CH2=CH(CH3)2SiO[(CH3)2SiO] x -Si(CH3)2CH=CH2) (molecular weight is about 4500, vinyl content is 2.4%).

[0070] The obtained water-dispersible polyether-modified silicone elastomer gel was tested by infrared IR and found that no SiH bonds were present in the product, indicating that all SiH bonds had reacted. The emulsification effect, film-forming effect and skin feel test were also conducted, and the results are shown in Table 5.

[0071] Comparative Example 3 The difference between this comparative example and Example 2 is that the silsesquioxane containing unsaturated groups used in this comparative example is prepared by the following preparation method: 100 g of vinyl triethoxysilane, 48 g of tetrahydrofuran, 24 g of distilled water and 1 g of dibutyltin dilaurate were reacted at 70° C. for 5 h, and then small molecular substances were removed by rotary evaporation to obtain vinyl-containing silsesquioxane.

[0072] n A / n B And other conditions remain unchanged.

[0073] Table 5

[0074] It can be seen from Tables 1 to 4 that the water-dispersible polyether-modified silicone elastomer gel provided by the present invention has excellent emulsification effect, film-forming effect and skin feel.

[0075] The applicant declares that the present invention is illustrated by the above embodiments, but the present invention is not limited to the above embodiments, that is, it does not mean that the present invention must rely on the above embodiments to be implemented. Those skilled in the art should understand that any improvement of the present invention, equivalent replacement of various raw materials of the product of the present invention, addition of auxiliary components, selection of specific methods, etc., all fall within the protection scope and disclosure scope of the present invention.

Claims

1. A water-dispersible polyether-modified silicone elastomer gel, characterized in that: It consists of a reaction raw material mixture containing the following components: (A) an unsaturated group-containing polysilsesquioxane containing at least two unsaturated hydrocarbon groups; (B) an organohydrogensiloxane containing at least two silicon-hydrogen bonds; (C) an unsaturated group-containing polyether containing at least one unsaturated hydrocarbon group; It is obtained by catalytic reaction of (E) hydrosilylation reaction catalyst in (D) carrier fluid.

2. The water-dispersible polyether-modified silicone elastomer gel according to claim 1, characterized in that: The molar ratio of the unsaturated groups in the component (A) to the silicon-hydrogen bonds in the component (B) is (0.1-1.5):1; Preferably, the molar ratio of the unsaturated groups in the component (A) to the silicon-hydrogen bonds in the component (B) is (0.4-1):1; Preferably, the molar ratio of the unsaturated groups in the component (C) to the silicon-hydrogen bonds in the component (B) is (0.1-1.5):1; Preferably, the molar ratio of the unsaturated groups in the component (C) to the silicon-hydrogen bonds in the component (B) is (0.3-1):1; Preferably, the molar ratio of the total unsaturated groups in the reaction raw material mixture to the silicon-hydrogen bonds is (0.8-2):

1.

3. The water-dispersible polyether-modified silicone elastomer gel according to claim 1, characterized in that: The unsaturated group-containing polysilsesquioxane of component (A) has a structure as shown in chemical formula (I): (CH3)2R 1 SiO-[R 2 SiO 3 / 2 ] x [R 4 SiO 3 / 2 ] y -SiR 3 (CH3)2 (Ⅰ), where R 1 , R 2 , R 3 Each is independently selected from a substituted or unsubstituted alkane group, and at least one of them is an unsaturated aliphatic hydrocarbon group; R 4 are independently selected from substituted or unsubstituted saturated alkane groups, R 1 , R 2 , R 3、 R 4 The substituted substituent is selected from any one of an alkyl group, an alkenyl group, an aryl group, a hydroxyl group, a halogen group, an ether group, and an ester group; x=1-50, y=0-50; preferably, x=2-14; y=0-16; Preferably, the unsaturated aliphatic hydrocarbon group is an olefin unsaturated group; Preferably, the unsaturated aliphatic hydrocarbon group is selected from any one of CH2=CH-, CH2=CH-CH2-, and CH2=C(CH3)-CH2CH2-.

4. The water-dispersible polyether-modified silicone elastomer gel according to claim 1, characterized in that: The component (B) organohydrogensiloxane includes side hydrogen-containing silicone oil and / or terminal hydrogen-containing silicone oil; Preferably, the organohydrogensiloxane of component (B) has a structure as shown in chemical formula (II): (CH3)3SiO[(CH3)HSiO] x [(R1)2SiO] y -Si(CH3)3 (II), where x is a natural number between 2 and 20, y is a natural number between 0 and 500, and R 1 is a C1~20 alkyl or aryl group; Preferably, x=4~10, y=10~100.

5. The water-dispersible polyether-modified silicone elastomer gel according to claim 1, characterized in that: The unsaturated polyether of component (C) has a structure as shown in chemical formula (III): R4[(C2H4O) a (C3H6O) b ]H(III), wherein a and b are natural numbers ranging from 0 to 50, and a+b>2, and R4 is an unsaturated aliphatic hydrocarbon; Preferably, a=10~22, b=0~12; Preferably, R4 is selected from any one of CH2=CH-, CH2=CH-CH2-, and CH2=C(CH3)-CH2CH2-.

6. The water-dispersible polyether-modified silicone elastomer gel according to claim 1, characterized in that: The fluid carrier of component (D) is one or more of low-viscosity polysiloxane, alkane or oil with a viscosity of 1 to 50 mPa·s; Preferably, the low-viscosity polysiloxane is one or more of polydimethylsiloxane, C2-C16 fatty alkane-modified silicone oil, and natural oil-modified silicone oil; Preferably, the component (D) accounts for 60-90wt% of the total feed ratio; Preferably, the component (D) accounts for 70-85wt% of the total feed ratio.

7. The water-dispersible polyether-modified silicone elastomer gel according to claim 1, characterized in that: The (E) hydrosilylation reaction catalyst comprises a platinum metal catalyst; Preferably, the platinum metal catalyst is selected from one or more of chloroplatinic acid, Karstedt catalyst and Speier catalyst.

8. A method for preparing the water-dispersible polyether-modified silicone elastomer gel according to any one of claims 1 to 7, characterized in that: The method comprises the following steps: reacting the reaction raw material mixture, component (D) carrier fluid and component (E) hydrosilylation reaction catalyst, and then grinding to obtain the water-dispersible polyether-modified organic silicon elastomer gel.

9. The preparation method according to claim 8, characterized in that: The reaction temperature is 25-95°C; Preferably, the reaction time is 3 to 8 hours; Preferably, the grinding equipment is selected from any one of a three-roll mill, a colloid mill and a ball mill; Preferably, the preparation method further comprises the steps of: after grinding, adding a polymerization inhibitor and mixing; Preferably, the amount of the polymerization inhibitor added is 1 to 5 parts by weight based on 100 parts by weight of the total weight of the reaction raw material mixture and component (D).

10. Use of the water-dispersible polyether-modified silicone elastomer gel according to any one of claims 1 to 9 in cosmetics or personal care products.

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