Room-temperature-cured high-temperature-resistant elastic silicon resin matrix as well as preparation method and application thereof

Abstract

The invention discloses a room-temperature-cured high-temperature-resistant elastic silicon resin matrix as well as a preparation method and application thereof. The preparation method of the elastic silicon resin matrix comprises the following steps: (1) preparing preparation raw materials, wherein the preparation raw materials comprise hydroxyl-terminated polysiloxane, polyfunctional alkoxy silane, polyhedral oligomeric silsesquioxane, a basic catalyst and a solvent; and (2) mixing the preparation raw materials, and performing condensation polymerization to obtain the elastic silicon resin matrix. Compared with liquid silicon resin in the market, the elastic silicon resin prepared by the invention does not need to be stored by using a large amount of solvent, is low in viscosity, can be cured at room temperature, is mild in reaction condition, easy to control and high in batch stability, can effectively avoid the gelation problem in the alkoxy hydrolytic condensation process, and has the advantages of improving the product yield and reducing the production cost. And the stability of the product is improved.

Description

Technical Field

[0001] This invention relates to the field of organosilicon resin synthesis, and provides a room temperature curing, high temperature resistant elastic silicone resin matrix, its preparation method, and its application. Background Technology

[0002] Contains a trifunctional unit (RSiO) 1.5 Polysiloxanes with T-units (or Q-units) or tetrafunctional units (SiO2) are called silicone resins. Currently, silicone resins are mainly solvent-based silicone resins. They are highly cross-linked polymers formed by the condensation of silanol groups or the hydrolytic condensation of alkoxy groups. They require a large amount of solvent to dissolve them before use and require high temperatures to fully cure. Therefore, both in terms of process and performance, this greatly limits the application of liquid silicone resins.

[0003] Silicone rubber, due to its high main chain flexibility, weak intermolecular forces, low cohesive energy, and low crosslinking density, exhibits superior elasticity compared to silicone resin, but its high-temperature stability is inferior. The sol-gel method combines silicone resin and silicone rubber through the co-hydrolysis and condensation of multifunctional alkoxysilanes and hydroxyl silicone oils, yielding an in-situ resin-reinforced, liquid-flowable silicone rubber raw material that combines strength and toughness. However, it was found that while this in-situ resin-reinforced silicone rubber showed some improvement in mechanical properties, its high-temperature stability remained essentially unchanged compared to regular silicone rubber. Summary of the Invention

[0004] To address the problems of existing silicone resins, such as high-temperature curing, solvent-soluble storage, poor toughness, and low crosslinking density and insufficient high-temperature resistance of silicone rubber, this invention provides a solvent-free, low-viscosity, room-temperature curable, strong and tough high-temperature resistant elastic silicone resin matrix, which combines the excellent properties of silicone resin and silicone rubber.

[0005] To achieve the above technical objectives, the present invention provides the following technical solution: A method for preparing an elastic silicone resin matrix includes the following steps: (1) Prepare the raw materials, which include: hydroxyl-terminated polysiloxane, polyfunctional alkoxysilane, polyhedral oligomeric silsesquioxane (POSS), alkaline catalyst and solvent; The molar ratio of hydroxyl-terminated polysiloxane, polyfunctional alkoxysilane, and polyhedral oligomeric silsesquioxane (POSS) is 1:0.1~10:0.1~10. (2) After mixing the raw materials, a polycondensation reaction is carried out to obtain the elastic silicone resin matrix.

[0006] According to an embodiment of the present invention, in the preparation raw materials, the mass ratio of hydroxyl-terminated polysiloxane to solvent is 1:1 to 10, for example, 1:2, 1:3, 1:4, 1:5, 1:6, 1:7, 1:8, or 1:9.

[0007] According to an embodiment of the present invention, in the preparation raw materials, the molar ratio of hydroxyl-terminated polysiloxane to alkaline catalyst is 1:0.1~10, for example 1:1, 1:2, 1:3, 1:4, 1:5, 1:6, 1:7, 1:8, 1:9.

[0008] According to an embodiment of the present invention, in the raw materials for preparation, the molar ratio of hydroxyl-terminated polysiloxane to polyfunctional alkoxysilane and polyhedral oligomeric silsesquioxane (POSS) is 1:1 to 10:1 to 10, preferably 1:1 to 5:1 to 5, for example 1:1:1 to 10, 1:1 to 10:1, 1:1 to 5:1 to 5, and even more for example 1:1:1, 1:1:2, 1:1:3, 1:1: 4. 1:1:5, 1:1:6, 1:1:7, 1:1:8, 1:1:9, 1:2:1, 1:3:1, 1:4:1, 1:5:1, 1:6:1, 1:7:1, 1:8:1, 1:9:1, 1:2:2, 1:3:3, 1:4:4, 1:5:5, 1:6:6, 1:7:7, 1:8:8, 1:9:9, or any range between any two of the above molar ratios.

[0009] According to an embodiment of the present invention, the hydroxyl-terminated polysiloxane has the following structural formula I: Formula I Wherein, R1 and R2 may be the same or different, and are independently selected from methyl, phenyl, vinyl, nitrile, trifluoropropyl, and nitrilepropyl; x and y may be the same or different, and are independently selected from integers between 0 and 1000, for example, 100, 200, 300, 400, 500, 600, 700, 800, and 900.

[0010] Preferably, in Equation I, x and y are not both 0.

[0011] For example, in Equation I, x = 0, and y is greater than 0 and less than or equal to 1000, such as 134.

[0012] Furthermore, the hydroxyl-terminated polysiloxane is hydroxyl-terminated polydimethylsiloxane (OH-PDMS) with a molecular weight of approximately 10,000 g / mol.

[0013] According to an embodiment of the present invention, the polyfunctional alkoxysilane is a trifunctional alkoxysilane.

[0014] Preferably, the trifunctional alkoxysilane has the structural formula of Formula II:

[0015] In Formula II, R3 is selected from C1-C5 alkyl (e.g., methyl, ethyl) or C6-C10 aryl (e.g., phenyl); R4 may be the same or different and are independently selected from C1-C5 alkyl, e.g., methyl, ethyl.

[0016] According to a preferred embodiment of the present invention, the polyfunctional alkoxysilane includes, but is not limited to, one, two, or a mixture of two or more of the following compounds: methyltrimethoxysilane, ethyltrimethoxysilane, propyltrimethoxysilane, phenyltrimethoxysilane, vinyltrimethoxysilane, cyclohexyltrimethoxysilane, methyltriethoxysilane, allyltrimethoxysilane, acryloyloxypropyltrimethoxysilane, ethyltriethoxysilane, propyltriethoxysilane, phenyltriethoxysilane, vinyltriethoxysilane, cyclohexyltriethoxysilane, allyltriethoxysilane, acryloyloxypropyltriethoxysilane, methyltripropoxysilane, ethyltripropoxysilane, propyltripropoxysilane, phenyltripropoxysilane, and vinyltripropoxysilane.

[0017] According to embodiments of the present invention, the polyhedral oligomeric silsesquioxane (POSS) includes, but is not limited to, one, two, or a mixture of two or more of the following compounds: heptacyclopentyltrisilylsilsesquioxane, heptaisobutyltrisilylsilsesquioxane, heptaisooctyltrisilylsilsesquioxane, heptaphenyltrisilylsilsesquioxane; heptaisobutylaminopropylsilsesquioxane, heptaisooctylaminopropylsilsesquioxane, heptaphenylaminopropylsilsesquioxane; heptaisobutylmono(triethoxysilyl)silsesquioxane.

[0018] According to embodiments of the present invention, the alkaline catalyst includes, but is not limited to, at least one of the following substances: triethylamine, diisopropylethylamine, pyridine, ammonia, sodium hydroxide, potassium hydroxide, calcium hydroxide, sodium carbonate, potassium carbonate, sodium methoxide, potassium methoxide, sodium ethoxide, potassium ethoxide, potassium tert-butoxide, and tetramethylammonium hydroxide.

[0019] According to an embodiment of the present invention, the molar ratio of the alkaline catalyst to the polyfunctional alkoxysilane is 0.2 to 5:1, for example, 1:1, 2:1, 3:1, or 4:1.

[0020] According to embodiments of the present invention, the solvent includes, but is not limited to, at least one of dichloromethane, dioxane, benzene, xylene, toluene, ethyl acetate, and tetrahydrofuran.

[0021] According to an embodiment of the present invention, in step (2), the raw materials can be mixed using methods known in the art, such as stirring for 30 to 60 minutes.

[0022] According to an embodiment of the present invention, in step (2), the conditions of the polycondensation reaction include: a polycondensation temperature of 30~100℃, for example 40℃, 50℃, 60℃, 70℃, 80℃, or 90℃; and a polycondensation time of 1~48h, for example 10h, 20h, 30h, or 40h.

[0023] According to an embodiment of the present invention, in step (2), after the polycondensation reaction is completed, the reaction product is purified to obtain the elastic silicone resin matrix.

[0024] According to an embodiment of the present invention, the purification process specifically includes: removing the alkaline catalyst and washing with alcohol.

[0025] Preferably, removing the alkaline catalyst includes: adding water to the reaction product for washing, for example, adding water in batches and washing three or more times.

[0026] Preferably, the alcohol washing includes washing at least three times with an organic alcohol solvent (such as ethanol). Further, the amount of organic alcohol solvent used can be selected from a range known in the art, for example, the same as the mass of the reaction product.

[0027] For example, the purification process is as follows: the reaction product is washed three times with water to obtain a slightly turbid liquid, and then an equal mass of ethanol is added to wash it three times to obtain a clear and transparent liquid.

[0028] According to embodiments of the present invention, after purification, a drying process can also be performed. Preferably, the drying process can be carried out using methods known in the art, such as vacuum drying at 50-100°C for 1-20 hours. For example, vacuum drying in a 60°C vacuum drying oven for 10 hours.

[0029] The present invention also provides an elastic silicone resin matrix, wherein the monomer raw materials of the elastic silicone resin matrix include: Hydroxyl-terminated polysiloxanes, multifunctional alkoxysilanes, and polyhedral oligomeric silsesquioxanes (POSS). The molar ratio of hydroxyl-terminated polysiloxanes, polyfunctional alkoxysilanes, and polyhedral oligomeric silsesquioxanes (POSS) has the meaning described above, for example, 1:0.1~10:0.1~10.

[0030] According to an exemplary embodiment of the present invention, the monomer raw materials of the elastic silicone resin matrix include hydroxyl-terminated polydimethylsiloxane (OH-PDMS), phenyltrimethoxysilane (PhTMS), and heptaphenylaminopropylsilsesquioxane, and the resulting elastic silicone resin matrix has the following structural formula III: Formula III, Where n is selected from 40 to 200, for example, 50, 100, 150; m is selected from 1 to 10, for example, 1, 2, 3, 4, 5, 6, 7, 8, 9; p = 1~10, for example, 1, 2, 3, 4, 5, 6, 7, 8, 9.

[0031] For example, in Equation III, n=150, m=3, and p=1.

[0032] For example, in Equation III, n=150, m=5, and p=1.

[0033] For example, in Equation III, n=150, m=7, and p=1.

[0034] For example, in Equation III, n=150, m=9, and p=1.

[0035] According to an embodiment of the present invention, the elastic silicone resin matrix is ​​obtained by the above preparation method.

[0036] The present invention also provides the application of the above-mentioned elastic silicone resin matrix in the preparation of silicone rubber elastomers.

[0037] The present invention also provides a silicone rubber elastomer, wherein the raw material of the silicone rubber elastomer includes the above-mentioned elastic silicone resin matrix.

[0038] According to embodiments of the present invention, the raw materials for the silicone rubber elastomer further include crosslinking agents, catalysts, and optionally include or exclude additives known in the art. Preferably, the additives are selected, for example, from reinforcing agents.

[0039] Preferably, the crosslinking agent is selected from tetraethyl orthosilicate.

[0040] Preferably, the catalyst is selected from dibutyltin dilaurate.

[0041] Preferably, the reinforcing agent is selected from silica HL-150P.

[0042] According to an embodiment of the present invention, the raw material of the silicone rubber elastomer specifically includes the following components: 100 parts by weight of elastic silicone resin matrix; 1-10 parts by weight of tetraethyl orthosilicate, for example, 5 parts by weight; 0.1-2 parts by weight of dibutyltin dilaurate, for example, 1 part by weight; 1-30 parts by weight of reinforcing agent, for example, 20 parts by weight.

[0043] According to an embodiment of the present invention, the silicone rubber elastomer is obtained by curing the above-mentioned raw materials at room temperature.

[0044] Compared with the prior art, the present invention has the following advantages: This invention reduces the molecular weight of hydroxyl silicone oil and controls the molar ratio of raw materials for co-hydrolysis condensation. It also introduces a polyhedral oligomeric silsesquioxane (POSS) structure, which can significantly increase the crosslinking density of the resulting resin matrix. Furthermore, by introducing large-volume units, it enhances the high-temperature pyrolysis capability and mechanical properties of the matrix, thereby preparing a solvent-free, low-viscosity, room-temperature curable, strong and tough high-temperature resistant elastic silicone resin matrix.

[0045] Compared with commercially available liquid silicone resins, the elastic silicone resin prepared by this invention does not require the use of a large amount of solvent for preservation, has low viscosity, and can be cured at room temperature.

[0046] The elastic silicone resin prepared by this invention has mild reaction conditions, is easy to control, and has high batch stability. It can effectively avoid gelation problems in the alkoxy hydrolysis condensation process, and plays a very important role in improving product yield and product stability. Attached Figure Description

[0047] Figure 1 The image shows the Si spectrum of the elastic silicone resin matrix in Example 1. Detailed Implementation

[0048] The technical solution of the present invention will be further described in detail below with reference to specific embodiments. It should be understood that the following embodiments are merely illustrative and explanatory of the present invention, and should not be construed as limiting the scope of protection of the present invention. All technologies implemented based on the above content of the present invention are covered within the scope of protection intended by the present invention.

[0049] Unless otherwise stated, the raw materials and reagents used in the following examples are commercially available products or can be prepared by known methods.

[0050] Examples 1-4 (1) Weigh 10,000 g / mol of hydroxyl-terminated polydimethylsiloxane (OH-PDMS, molecular weight approximately 10,000 g / mol), phenyltrimethoxysilane (PhTMS), tetrahydrofuran (THF), and heptaphenylaminopropylsilsesquioxane (POSS), and add them to a 500 mL three-necked flask equipped with a mechanical stirrer and reflux condenser. The oil bath temperature is 30 °C, and the mechanical stirring speed is 250 rpm. After stirring for 10 min, add an appropriate amount of ammonia water to the three-necked flask, raise the temperature to 45 °C, and react for 24 h. After the reaction is complete, the system is transparent and clear. Wash three times with deionized water to obtain a slightly turbid liquid. After washing three times with an equal mass of ethanol, a clear and transparent liquid is obtained. Finally, the product was placed in a vacuum drying oven at 60℃ and evacuated for 10 h to obtain a colorless and transparent product with the structural formula shown in Formula III. In Formula III corresponding to Example 1, n=150, m=3, p=1; in Formula III corresponding to Example 2, n=150, m=5, p=1; in Formula III corresponding to Example 3, n=150, m=7, p=1; and in Formula III corresponding to Example 1, n=150, m=9, p=1.

[0051] The amounts of reaction raw materials used in different embodiments are shown in Table 1 below.

[0052] Table 1. Amounts of reaction raw materials in different embodiments

[0053] (2) Take 100 parts by weight of each of the four elastic silicone resin matrices prepared in step (1) above, add 5 parts by weight of ethyl orthosilicate and 0.1 parts by weight of dibutyltin dilaurate respectively, mix evenly, and cure at room temperature for 7 days to obtain four different silicone rubber elastomers.

[0054] (3) Take 100 parts by weight of the four elastic silicone resin matrices prepared in step (1) above, add 5 parts by weight of ethyl orthosilicate, 0.1 parts by weight of dibutyltin dilaurate and 20 parts by weight of silica (HL-150P, Guangzhou Jibisheng Technology Industry Co., Ltd.), mix them evenly with a three-roll mill, pour them into a 2mm deep PTFE mold, and then pour them into a 2mm deep PTFE mold. Cur at room temperature for 7 days to obtain four different reinforcing silicone rubber elastomers.

[0055] Comparative Example 1 Using 5000cp hydroxyl-terminated polydimethylsiloxane as the silicone rubber elastomer matrix, silicone rubber elastomer comparative sample 1 and reinforced silicone rubber elastomer comparative sample 1 were prepared according to steps (2) and (3) of Example 1, respectively. Specifically: Take 100 parts by weight of the above 5000cp hydroxyl-terminated polydimethylsiloxane, add 5 parts by weight of ethyl orthosilicate and 0.1 parts by weight of dibutyltin dilaurate, mix evenly, and cure at room temperature for 7 days to obtain silicone rubber elastomer comparative sample 1.

[0056] Take 100 parts by weight of the above 5000cp hydroxyl-terminated polydimethylsiloxane, add 5 parts by weight of ethyl orthosilicate, 0.1 parts by weight of dibutyltin dilaurate and 20 parts by weight of silica (HL-150P, Guangzhou Jibisheng Technology Industry Co., Ltd.), mix evenly using a three-roll mill, pour into a 2mm deep PTFE mold, then pour into a 2mm deep PTFE mold, and cure at room temperature for 7 days to obtain the reinforced silicone rubber elastomer comparison sample 1.

[0057] Comparative Example 2 The preparation method of the comparative elastic silicone resin matrix comparative sample 2 is basically the same as that of Example 1, except that the amount of OH-PDMS used is 200g. Replace the silicone rubber elastomer matrix of Example 1 with the elastic silicone resin matrix comparison sample 2 obtained in this comparative example, and prepare silicone rubber elastomer comparison sample 2 and reinforced silicone rubber elastomer comparison sample 2 according to steps (2) and (3) of Example 1 respectively.

[0058] Comparative Example 3 The preparation method of the comparative elastic silicone resin matrix comparative sample 3 is basically the same as that of Example 1, except that the amount of POSS used is 5g.

[0059] Replace the silicone rubber elastomer matrix of Example 1 with the elastic silicone resin matrix comparison sample 3 obtained in this comparative example, and prepare silicone rubber elastomer comparison sample 3 and reinforced silicone rubber elastomer comparison sample 3 according to steps (2) and (3) of Example 1 respectively.

[0060] Comparative Example 4 The preparation method of the comparative elastic silicone resin matrix comparative sample 3 is basically the same as that of Example 1, except that the amount of ammonia water used is 0.96g, and the molar ratio of alkaline catalyst to the polyfunctional alkoxysilane is 0.2:1.

[0061] Replace the silicone rubber elastomer matrix of Example 1 with the elastic silicone resin matrix comparison sample 4 obtained in this comparative example, and prepare silicone rubber elastomer comparison sample 4 and reinforced silicone rubber elastomer comparison sample 4 respectively according to steps (2) and (3) of Example 1.

[0062] Comparative Example 5 The preparation method of the comparative elastic silicone resin matrix sample 5 is basically the same as that of Example 1, except that the amount of ammonia water used is 24g, and the molar ratio of the alkaline catalyst to the polyfunctional alkoxysilane is 5:1. Since the reactants directly gel during the reaction process, a liquid product cannot be obtained as a comparative sample of the silicone rubber elastomer matrix, so no subsequent steps and performance tests are performed.

[0063] Samples from the above examples and comparative examples were tested respectively: the high-temperature degradation resistance of the silicone rubber elastomer and its comparative sample is recorded in Table 2; the mechanical properties and adhesive properties of the reinforced silicone rubber elastomer and its comparative sample are recorded in Table 3.

[0064] Table 2. TGA data for different embodiments and comparative samples

[0065] Table 3 Mechanical and adhesive properties of different embodiments and comparative samples after reinforcement

[0066] As can be seen from Examples 1-4 and Comparative Example 1, the elastic silicone resin prepared by the present invention not only has better high temperature resistance and bonding strength than silicone rubber, but also has an elongation at break that is on par with silicone rubber and significantly better than silicone resin.

[0067] Comparing Example 1 and Comparative Example 2, it can be seen that reducing the amount of hydroxyl silicone oil introduced will increase the concentration of silane in the system. As a result, most of the silanes will hydrolyze and self-condense to form small molecule oligomers, which will be washed away after purification. The proportion of silanes that are chemically bonded to the silicone oil is very small, and the high-temperature stability will be significantly reduced.

[0068] Comparing Example 1 and Comparative Example 3, it can be seen that reducing the amount of POSS introduced will cause a certain degree of decrease in the high-temperature stability of the prepared elastic silicone resin.

[0069] Compared with Examples 1 and 4 and 5, it can be seen that when the molar ratio of alkaline catalyst to the polyfunctional alkoxysilane is 0.2:1, the reaction can hardly proceed, and the high-temperature stability of the obtained product is not improved. When the molar ratio of alkaline catalyst to the polyfunctional alkoxysilane is 5:1, the viscosity of the reaction process increases sharply, a gel is formed, a liquid matrix resin cannot be obtained, and the high-temperature stability is significantly reduced.

[0070] In summary, the elastic silicone resin matrix obtained by the preparation method of the present invention can be used to prepare solvent-free, low-viscosity, room-temperature curable, strong and tough high-temperature resistant elastic silicone resin, thus combining the excellent high-temperature resistance of silicone resin and the high elasticity of silicone rubber.

[0071] The exemplary embodiments of the present invention have been described above. However, the scope of protection of this application is not limited to the above embodiments. Any modifications, equivalent substitutions, improvements, etc., made by those skilled in the art within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A method for preparing an elastic silicone resin matrix, characterized in that, The preparation method includes the following steps: (1) Prepare the raw materials, which include: hydroxyl-terminated polysiloxane, polyfunctional alkoxysilane, polyhedral oligomeric silsesquioxane, alkaline catalyst and solvent; The molar ratio of hydroxyl-terminated polysiloxane, polyfunctional alkoxysilane, and polyhedral oligomeric silsesquioxane is 1:0.1~10:0.1~10. (2) After mixing the raw materials, a polycondensation reaction is carried out to obtain the elastic silicone resin matrix.

2. The preparation method according to claim 1, characterized in that, In the preparation raw materials, the mass ratio of hydroxyl-terminated polysiloxane to solvent is 1:1~10; In the preparation raw materials, the molar ratio of hydroxyl-terminated polysiloxane to alkaline catalyst is 1:0.1~10; In the preparation raw materials, the molar ratio of hydroxyl-terminated polysiloxane, polyfunctional alkoxysilane, and polyhedral oligomeric silsesquioxane is 1:1~10:1~10.

3. The preparation method according to claim 1, characterized in that, The hydroxyl-terminated polysiloxane has the following structural formula I: Formula I Wherein, R1 and R2 may be the same or different, and are independently selected from methyl, phenyl, vinyl, nitrile, trifluoropropyl, and nitrilepropyl; x and y may be the same or different, and are independently selected from integers between 0 and 1000; in Formula I, x and y are not both 0; The polyfunctional alkoxysilane is a trifunctional alkoxysilane.

4. The preparation method according to claim 1, characterized in that, The structural formula of the trifunctional alkoxysilane is shown in Formula II: In Formula II, R3 is selected from C1-C5 alkyl or C6-C10 aryl; R4 may be the same or different and are independently selected from C1-C5 alkyl.

5. The preparation method according to claim 1, characterized in that, The polyhedral oligomeric silsesquioxanes include one, two, or a mixture of two or more of the following compounds: heptacyclopentyltrisilylsilsesquioxane, heptaisobutyltrisilylsilsesquioxane, heptaisooctyltrisilylsilsesquioxane, heptaphenyltrisilylsilsesquioxane; heptaisobutylaminopropylsilsesquioxane, heptaisooctylaminopropylsilsesquioxane, heptaphenylaminopropylsilsesquioxane; heptaisobutylmono(triethoxysilyl)silsesquioxane; The alkaline catalyst includes at least one of the following substances: triethylamine, diisopropylethylamine, pyridine, ammonia, sodium hydroxide, potassium hydroxide, calcium hydroxide, sodium carbonate, potassium carbonate, sodium methoxide, potassium methoxide, sodium ethoxide, potassium ethoxide, potassium tert-butoxide, and tetramethylammonium hydroxide. The molar ratio of the alkaline catalyst to the polyfunctional alkoxysilane is 0.2 to 5:1; The solvent includes at least one of dichloromethane, dioxane, benzene, xylene, toluene, ethyl acetate, and tetrahydrofuran.

6. The preparation method according to claim 1, characterized in that, In step (2), the conditions for the polycondensation reaction include: a polycondensation temperature of 30~100℃; and a polycondensation time of 1~48h. In step (2), after the polycondensation reaction is completed, the reaction product is purified to obtain the elastic silicone resin matrix.

7. An elastic silicone resin matrix, characterized in that, The monomer raw materials of the elastic silicone resin matrix include: Hydroxyl-terminated polysiloxanes, polyfunctional alkoxysilanes, and polyhedral oligomeric silsesquioxanes; The molar ratio of hydroxyl-terminated polysiloxane, polyfunctional alkoxysilane, and polyhedral oligomeric silsesquioxane is 1:0.1~10:0.1~10.

8. The elastic silicone resin matrix according to claim 7, characterized in that, The monomer raw materials for the elastic silicone resin matrix include hydroxyl-terminated polydimethylsiloxane, phenyltrimethoxysilane, and heptaphenylaminopropylsilsesquioxane, and the resulting elastic silicone resin matrix has the following structural formula III: Formula III, Where n is selected from 40 to 200; m is selected from 1 to 10; p = 1 to 10.

9. The use of the elastic silicone resin matrix according to claim 7 or 8 in the preparation of silicone rubber elastomers.

10. A silicone rubber elastomer, characterized in that, The raw material for the silicone rubber elastomer includes the elastic silicone resin matrix as described in claim 7 or 8.

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