Organic silicon rubber and preparation method thereof, silicon rubber material and battery

Abstract

The invention relates to organic silicon rubber and a preparation method thereof, a silicon rubber material and a battery. The organic silicon rubber comprises a component A and a component B, the component A is prepared from the following components in parts by mass: 20 to 30 parts of first base rubber, 20 to 50 parts of first alkoxy modified vinyl silicone oil, 30 to 50 parts of first inorganic heat insulation powder, 0.3 to 1.5 parts of first powder auxiliary agent and 0.1 to 1 part of catalyst; the component B is prepared from 20 to 30 parts of second base rubber, 20 to 50 parts of second alkoxy modified vinyl silicone oil, 30 to 50 parts of second inorganic heat insulation powder, 0.3 to 1.5 parts of second powder additive, 0.8 to 2.5 parts of tackifier, 0.5 to 5 parts of cross-linking agent and 0.01 to 0.1 part of inhibitor; the inhibitor comprises vinyl siloxane, and the cross-linking agent comprises at least one of linear chain type hydrogen-containing silicone oil, MT type hydrogen-containing silicone oil and MQ type hydrogen-containing silicone oil; the first base rubber and the second base rubber comprise reinforcing fillers, and the specific surface areas of the reinforcing fillers in the first base rubber and the second base rubber are respectively and independently 50 m < 2 > / g-200 m < 2 > / g. The organic silicon rubber is relatively good in flame retardant property.

Description

Technical Field

[0001] The present application relates to the field of material technology, and in particular to an organic silicone rubber and a preparation method thereof, a silicone rubber material and a battery. Background Art

[0002] Silicone rubber is a special rubber with Si-O-Si as the main chain. It is a polymer elastomer with the properties of both organic and inorganic materials. It has excellent electrical insulation, oil resistance, chemical resistance, weather resistance, high and low temperature resistance, insulation, physiological inertness, etc. It is widely used in electrical equipment, automobiles, construction, medical treatment, food and other fields. However, the flame retardant properties of traditional silicone rubber are poor.

[0003] Therefore, it is necessary to improve the traditional technology. Summary of the invention

[0004] Based on this, the present application provides a silicone rubber with good flame retardant properties and a preparation method thereof, a silicone rubber material and a battery.

[0005] The technical solution of this application to solve the above technical problems is as follows.

[0006] In a first aspect, the present application provides an organic silicone rubber, comprising a component A and a component B;

[0007] Calculated by weight, the component A includes: 20-30 parts of the first base rubber, 20-50 parts of the first alkoxy-modified vinyl silicone oil, 30-50 parts of the first inorganic thermal insulation powder, 0.3-1.5 parts of the first powder additive and 0.1-1 parts of the catalyst;

[0008] Calculated by weight, the B component includes: 20-30 parts of the second base glue, 20-50 parts of the second alkoxy-modified vinyl silicone oil, 30-50 parts of the second inorganic thermal insulation powder, 0.3-1.5 parts of the second powder additive, 0.8-2.5 parts of the tackifier, 0.5-5 parts of the cross-linking agent and 0.01-0.1 parts of the inhibitor;

[0009] The inhibitor comprises vinyl siloxane, the crosslinking agent comprises at least one of linear end-hydrogenated silicone oil, MT type hydrogenated silicone oil and MQ type hydrogenated silicone oil; the first base glue and the second base glue comprise reinforcing fillers, and the specific surface areas of the reinforcing fillers in the first base glue and the second base glue are independently 50 m 2 / g~200 m 2 / g.

[0010] In some embodiments, in the silicone rubber, the inhibitor comprises at least one of tetramethyldivinyldisiloxane and tetramethyltetravinylcyclotetrasiloxane.

[0011] In some embodiments, in the silicone rubber, the first inorganic thermal insulation powder and the second inorganic thermal insulation powder each independently include silanization-modified inorganic metal powder; optionally, the inorganic metal powder includes at least one of aluminum silicate, iron silicate, calcium silicate, magnesium silicate, aluminum hydroxide and magnesium hydroxide;

[0012] And / or, the D50 particle sizes of the first inorganic thermal insulation powder and the second inorganic thermal insulation powder are independently 1 µm to 5 µm.

[0013] In some embodiments, in the silicone rubber, the first powder additive and the second powder additive each independently include modified silicone oil, and the terminal group of the modified silicone oil includes at least one of trimethylsilyl, trimethoxysilyl, epoxydimethoxysilyl and vinyldimethylsilyl;

[0014] And / or, the viscosity of the first powder auxiliary agent and the second powder auxiliary agent is independently 5 mPa.s to 50 mPa.s.

[0015] In some of the embodiments, in the silicone rubber, the tackifier includes silicone; optionally, the silicone includes at least one of a silicon-hydrogen group and an epoxy group.

[0016] In some of the embodiments, in the silicone rubber, the first base rubber and the second base rubber respectively and independently include, by weight: 65-85 parts of a third alkoxy-modified vinyl silicone oil, 12-18 parts of a reinforcing filler and 2.5-7 parts of a filler treating agent.

[0017] In some embodiments, in the silicone rubber, the first alkoxy-modified vinyl silicone oil, the second alkoxy-modified vinyl silicone oil and the third alkoxy-modified vinyl silicone oil include a side alkoxy group, and the number of carbon atoms of the side alkoxy group is 1 to 4; optionally, the side chains of the first alkoxy-modified vinyl silicone oil, the second alkoxy-modified vinyl silicone oil and the third alkoxy-modified vinyl silicone oil independently include at least one of a methoxy group and an ethoxy group;

[0018] And / or, the viscosity of the first alkoxy-modified vinyl silicone oil, the second alkoxy-modified vinyl silicone oil and the third alkoxy-modified vinyl silicone oil is independently 1000 mPa.s to 8000 mPa.s.

[0019] In some embodiments, in the silicone rubber, the reinforcing filler includes white carbon black;

[0020] And / or, the filler treating agent includes silane; optionally, the silane includes at least one of methylsilazane, vinylsilazane, dimethylvinylethoxysilane and trimethylsilanol.

[0021] In some embodiments, in the silicone rubber, the catalyst comprises a platinum catalyst;

[0022] And / or, the platinum content in the platinum catalyst is 1000 ppm to 10000 ppm.

[0023] The second aspect of the present application provides a method for preparing an organic silicone rubber, comprising the following steps:

[0024] 20-30 parts of the first base rubber, 20-50 parts of the first alkoxy-modified vinyl silicone oil, 30-50 parts of the first inorganic thermal insulation powder, 0.3-1.5 parts of the first powder additive and 0.1-1 parts of the catalyst are mixed by weight to prepare component A;

[0025] Calculated by weight, 20-30 parts of the second base rubber, 20-50 parts of the second alkoxy-modified vinyl silicone oil, 30-50 parts of the second inorganic thermal insulation powder, 0.3-1.5 parts of the second powder additive, 0.8-2.5 parts of the tackifier, 0.5-5 parts of the cross-linking agent and 0.01-0.1 parts of the inhibitor are mixed to prepare component B;

[0026] The inhibitor comprises vinyl siloxane, the crosslinking agent comprises at least one of linear end-hydrogenated silicone oil, MT type hydrogenated silicone oil and MQ type hydrogenated silicone oil; the first base glue and the second base glue comprise reinforcing fillers, and the specific surface areas of the reinforcing fillers in the first base glue and the second base glue are independently 50 m 2 / g~200 m 2 / g.

[0027] A third aspect of the present application provides a silicone rubber material, wherein the raw materials for preparing the silicone rubber material include the organic silicone rubber provided in the first aspect or the organic silicone rubber prepared by the preparation method provided in the second aspect.

[0028] A fourth aspect of the present application provides a method for preparing a silicone rubber material, comprising the following steps:

[0029] The component A and the component B in the organic silicone rubber provided in the first aspect or the organic silicone rubber prepared by the preparation method provided in the second aspect are mixed to prepare a wet film, which is then cured to prepare a silicone rubber material.

[0030] In some embodiments, in the method for preparing the silicone rubber material, the mixing mass ratio of the component A to the component B is 1-3:1.

[0031] A fifth aspect of the present application provides a battery, comprising the silicone rubber material provided in the third aspect or the silicone rubber material prepared by the preparation method of the silicone rubber material provided in the fourth aspect.

[0032] Beneficial effects:

[0033] The organic silicone rubber of the present application comprises a component A and a component B; a reinforcing filler is arranged in the first base rubber of the component A, and the specific surface area of ​​the reinforcing filler is controlled to promote the compatibility between the first base rubber and components such as a first alkoxy-modified vinyl silicone oil and a first inorganic thermal insulation powder, thereby effectively improving the fluidity of the component A; a reinforcing filler is arranged in the second base rubber of the component B, and the specific surface area of ​​the reinforcing filler and the types of inhibitors and cross-linking agents are controlled to promote the compatibility between the second base rubber and components such as a second alkoxy-modified vinyl silicone oil and a second inorganic thermal insulation powder, thereby effectively improving the fluidity of the component B; the components A and B are mixed to have good thermal insulation and flame retardant properties.

[0034] The organic silicone rubber of the present application is suitable for spraying process, can be cured at room temperature, and has a fast curing reaction speed. DETAILED DESCRIPTION

[0035] The present application will be further described in detail below in conjunction with the embodiments and examples. It should be understood that these embodiments and examples are only used to illustrate the present application and are not used to limit the scope of the present application. The purpose of providing these embodiments and examples is to make the understanding of the disclosure of the present application more thorough and comprehensive.

[0036] It should also be understood that the present application can be implemented in many different forms and is not limited to the embodiments and examples described herein. Those skilled in the art can make various changes or modifications without violating the connotation of the present application, and the equivalent forms obtained also fall within the scope of protection of the present application. For example, the features illustrated or described as part of one embodiment can be combined in another embodiment in a suitable manner to produce a new embodiment. In addition, in the description below, a large number of specific details are given in order to provide a more comprehensive understanding of the present application. It should be understood that the present application can be implemented without one or more of these details.

[0037] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which this application belongs. The terms used herein in the specification of this application are only for the purpose of describing implementation modes and embodiments and are not intended to limit this application.

[0038] Unless otherwise specified or incompatible herewith, the terms and phrases used herein shall have the following meanings:

[0039] In the present application, "plurality", "multiple", "multiple times", etc., unless otherwise specified, refer to a quantity greater than 2 or equal to 2. For example, "one or more" means one or greater than or equal to two.

[0040] As used herein, "combination thereof", "any combination thereof", "any combination thereof" etc. include all suitable combinations of any two or more of the listed items.

[0041] Herein, the “suitable” mentioned in “suitable combination”, “suitable method”, “any suitable method”, etc., shall be based on the ability to implement the technical solution of this application, solve the technical problems of this application, and achieve the expected technical effects of this application.

[0042] Herein, "preferred", "better", "more preferred", and "suitable" are only used to describe implementation methods or examples with better effects, and it should be understood that they do not constitute a limitation on the scope of protection of this application. If multiple "preferred" items appear in a technical solution, unless otherwise specified and there is no contradiction or mutual restriction, each "preferred" item is independent.

[0043] In the present application, "further", "further", "particularly" and the like are used for descriptive purposes to indicate differences in content, but should not be construed as limiting the scope of protection of the present application.

[0044] In this application, "optionally", "optional", and "optional" mean optional or dispensable, that is, any one of the two parallel schemes of "yes" or "no". If multiple "options" appear in a technical solution, unless otherwise specified and there is no contradiction or mutual restriction, each "optional" is independent.

[0045] In the present application, the terms "first", "second", "third", "fourth", etc. in "the first aspect", "the second aspect", "the third aspect", "the fourth aspect", etc. are used only for descriptive purposes and cannot be understood as indicating or implying relative importance or quantity, nor can they be understood as implicitly indicating the importance or quantity of the indicated technical features. Moreover, "first", "second", "third", "fourth", etc. only serve the purpose of non-exhaustive enumeration and description, and it should be understood that they do not constitute a closed limitation on quantity.

[0046] In the present application, the technical features described in an open manner include closed technical solutions composed of the listed features, and also include open technical solutions containing the listed features.

[0047] In the present application, when it comes to a numerical interval (i.e., a numerical range), unless otherwise specified, the distribution of the optional numerical values ​​in the numerical interval is considered to be continuous, and includes the two numerical endpoints (i.e., the minimum value and the maximum value) of the numerical interval, and each numerical value between the two numerical endpoints. Unless otherwise specified, when the numerical interval only refers to the integers in the numerical interval, it includes the two endpoint integers of the numerical range, and each integer between the two endpoints, which is equivalent to directly listing each integer. When multiple numerical ranges are provided to describe features or characteristics, these numerical ranges can be combined. In other words, unless otherwise specified, the numerical range disclosed herein should be understood to include any and all sub-ranges included therein. The "numerical value" in the numerical interval can be any quantitative value, such as a number, a percentage, a ratio, etc. "Numerical interval" allows broadly including numerical interval types such as percentage intervals, ratio intervals, and ratio intervals.

[0048] The temperature parameters in this application, unless otherwise specified, are allowed to be either constant temperature treatment or to vary within a certain temperature range. It should be understood that the constant temperature treatment allows the temperature to fluctuate within the accuracy range controlled by the instrument. Fluctuations within the range of ±5°C, ±4°C, ±3°C, ±2°C, and ±1°C are allowed.

[0049] In this application, the term "room temperature" or "normal temperature" generally refers to 4°C to 35°C, for example, 20°C ± 5°C. In some embodiments of this application, "room temperature" or "normal temperature" refers to 10°C to 30°C. In some embodiments of this application, "room temperature" or "normal temperature" refers to 20°C to 30°C.

[0050] In this application, when referring to the unit of a data range, if there is a unit only after the right endpoint, it means that the units of the left and right endpoints are the same. For example, 3~5 h means that the units of the left endpoint "3" and the right endpoint "5" are both h (hours).

[0051] All documents mentioned in this application are cited as references in this application, just as each document is cited as reference separately. Unless they conflict with the invention purpose and / or technical solution of this application, the cited documents involved in this application are cited with all contents and all purposes. When the cited documents are involved in this application, the definitions of relevant technical features, terms, nouns, phrases, etc. in the cited documents are also cited. When the cited documents are involved in this application, the examples and preferred methods of the cited relevant technical features can also be incorporated into this application as references, but are limited to the implementation of this application. It should be understood that when the cited content conflicts with the description in this application, the present application shall prevail or be modified adaptively according to the description of this application.

[0052] The mass or weight of the relevant components mentioned in the specification of the embodiments of the present application may not only refer to the specific content of each component, but also indicate the proportional relationship of the mass or weight between the components. Therefore, as long as the content of the relevant components is proportionally enlarged or reduced according to the specification of the embodiments of the present application, it is within the scope disclosed in the specification of the embodiments of the present application. Specifically, the mass or weight described in the specification of the embodiments of the present application may be units known in the chemical industry such as μg, mg, g, and kg.

[0053] Silicone rubber has been widely used in electronic and electrical encapsulation, screen lamination, wires and cables, seat leather, battery fire retardant, etc. Among them, the traditional method of battery fire retardant and heat insulation is to compound ceramic flame retardant silicone rubber with glass fiber cloth by calendering to make a sheet, and then laminating it on the outside of the battery pack to play the role of flame retardant and heat insulation; this method has many processes, high production cost and low production efficiency.

[0054] An embodiment of the present application provides an organic silicone rubber, including component A and component B;

[0055] Component A includes, by weight: 20-30 parts of the first base rubber, 20-50 parts of the first alkoxy-modified vinyl silicone oil, 30-50 parts of the first inorganic thermal insulation powder, 0.3-1.5 parts of the first powder additive and 0.1-1 parts of the catalyst;

[0056] Calculated by weight, component B includes: 20-30 parts of the second base rubber, 20-50 parts of the second alkoxy-modified vinyl silicone oil, 30-50 parts of the second inorganic thermal insulation powder, 0.3-1.5 parts of the second powder additive, 0.8-2.5 parts of the tackifier, 0.5-5 parts of the cross-linking agent and 0.01-0.1 parts of the inhibitor;

[0057] The inhibitor comprises vinyl siloxane, the crosslinking agent comprises at least one of linear end-hydrogenated silicone oil, MT type hydrogenated silicone oil and MQ type hydrogenated silicone oil; the first base glue and the second base glue comprise reinforcing fillers, and the specific surface areas of the reinforcing fillers in the first base glue and the second base glue are independently 50 m 2 / g~200 m 2 / g.

[0058] The organic silicone rubber of the present application comprises a component A and a component B; a reinforcing filler is arranged in the first base rubber of the component A, and the specific surface area of ​​the reinforcing filler is controlled to promote the compatibility between the first base rubber and components such as a first alkoxy-modified vinyl silicone oil and a first inorganic thermal insulation powder, thereby effectively improving the fluidity of the component A; a reinforcing filler is arranged in the second base rubber of the component B, and the specific surface area of ​​the reinforcing filler and the types of inhibitors and cross-linking agents are controlled to promote the compatibility between the second base rubber and components such as a second alkoxy-modified vinyl silicone oil and a second inorganic thermal insulation powder, thereby effectively improving the fluidity of the component B; the components A and B are mixed to have good thermal insulation and flame retardant properties.

[0059] The organic silicone rubber of the present application is suitable for spraying process, can be cured at room temperature, has a fast curing reaction speed, and has good heat resistance.

[0060] The silicone rubber of the present application is applied to the external insulation layer of the new energy battery cell. The silicone rubber can be directly sprayed on the outer layer of the cell using a two-component high-pressure glue gun and quickly cured at room temperature. The cured coating has good flame retardant and heat-insulating properties. This method has a simple process flow and high production efficiency.

[0061] After the organic silicone rubber of the present application forms a coating, a ceramic layer is quickly formed at 900-1100°C, and a good thermal insulation effect can be achieved at a thickness of 1 mm.

[0062] It can be understood that in component A, by weight, the first base glue includes but is not limited to 20 parts, 22 parts, 24 parts, 26 parts, 28 parts, and 30 parts; the first alkoxy-modified vinyl silicone oil includes but is not limited to 20 parts, 25 parts, 30 parts, 35 parts, 40 parts, and 50 parts; the first inorganic thermal insulation powder includes but is not limited to 30 parts, 33 parts, 36 parts, 39 parts, 42 parts, and 50 parts; the first powder additive includes but is not limited to 0.3 parts, 0.5 parts, 0.7 parts, 1.0 parts, 1.2 parts, and 1.5 parts; the catalyst includes but is not limited to 0.1 parts, 0.3 parts, 0.5 parts, 0.7 parts, 0.9 parts, and 1 parts; in component B, by weight, the second base glue includes but is not limited to 20 parts, 22 parts, 24 parts, 26 parts, 28 parts, and 30 parts; The second alkoxy modified vinyl silicone oil includes but is not limited to 20-50 parts; the second inorganic thermal insulation powder includes but is not limited to 20 parts, 25 parts, 30 parts, 35 parts, 40 parts, and 50 parts; the second powder additive includes but is not limited to 0.3 parts, 0.5 parts, 0.7 parts, 1.0 parts, 1.2 parts, and 1.5 parts; the viscosity enhancer includes but is not limited to 0.8 parts, 1.1 parts, 1.4 parts, 1.7 parts, 2.0 parts, and 2.5 parts; the cross-linking agent includes but is not limited to 0.5 parts, 1.2 parts, 2.0 parts, 2.8 parts, 3.6 parts, and 5 parts; the inhibitor includes but is not limited to 0.01 parts, 0.03 parts, 0.05 parts, 0.07 parts, 0.09 parts, and 0.1 parts; in some examples, it can be within the range consisting of any two of these point values ​​as end values, the same below.

[0063] In some of the examples, in the silicone rubber, component A includes, by weight: 20-30 parts of a first base rubber, 20-50 parts of a first alkoxy-modified vinyl silicone oil, 30-50 parts of a first inorganic thermal insulation powder, 0.3-1.5 parts of a first powder additive, and 0.1-1 parts of a catalyst;

[0064] Calculated by mass, component B includes: 20-30 parts of the second base rubber, 20-50 parts of the second alkoxy-modified vinyl silicone oil, 30-50 parts of the second inorganic thermal insulation powder, 0.3-1.5 parts of the second powder additive, 0.8-2.5 parts of the thickener, 0.5-5 parts of the cross-linking agent and 0.01-0.1 parts of the inhibitor.

[0065] In some of these examples, silicone rubber consists of component A and component B;

[0066] Component A is composed of the following components by weight: 20-30 parts of the first base rubber, 20-50 parts of the first alkoxy-modified vinyl silicone oil, 30-50 parts of the first inorganic thermal insulation powder, 0.3-1.5 parts of the first powder additive and 0.1-1 parts of the catalyst;

[0067] Calculated by mass, component B is composed of the following components: 20-30 parts of the second base rubber, 20-50 parts of the second alkoxy-modified vinyl silicone oil, 30-50 parts of the second inorganic thermal insulation powder, 0.3-1.5 parts of the second powder additive, 0.8-2.5 parts of the thickener, 0.5-5 parts of the cross-linking agent and 0.01-0.1 parts of the inhibitor.

[0068] In some of these examples, in the silicone rubber, the inhibitor includes at least one of tetramethyldivinyldisiloxane and tetramethyltetravinylcyclotetrasiloxane.

[0069] The right type of inhibitor can give the silicone rubber a certain workable time and a faster curing reaction speed.

[0070] It can be understood that the straight-chain end-hydrogenated silicone oil does not have a branched structure; MT-type hydrogenated silicone oil and MQ-type hydrogenated silicone oil have a branched structure; wherein the MT-type hydrogenated silicone oil is composed of a monofunctional M unit and a trifunctional T unit, because the T unit has three bonds that can participate in the reaction and can form branches, and this branched structure makes the MT-type hydrogenated silicone oil molecule present an irregular dendritic morphology; the MQ-type hydrogenated silicone oil is composed of a monofunctional M unit and a tetrafunctional Q unit, and the Q unit has four connectable bonds, which can form a highly cross-linked structure in space, and ultimately tends to form a cage-like or spherical three-dimensional structure.

[0071] In some of the examples, in the silicone rubber, the hydrogen contents of the linear hydrogen-terminated silicone oil, the MT hydrogen-containing silicone oil, and the MQ hydrogen-containing silicone oil are independently 0.2% to 1.2%.

[0072] In some of the examples, in the silicone rubber, the first inorganic thermal insulation powder and the second inorganic thermal insulation powder each independently comprise silanization-modified inorganic metal powder.

[0073] Optionally, the inorganic metal powder includes at least one of aluminum silicate, iron silicate, calcium silicate, magnesium silicate, aluminum hydroxide and magnesium hydroxide.

[0074] In some of the examples, in the silicone rubber, the D50 particle sizes of the first inorganic thermal insulation powder and the second inorganic thermal insulation powder are independently 1 µm to 5 µm.

[0075] It can be understood that the D50 particle sizes of the first inorganic thermal insulation powder and the second inorganic thermal insulation powder independently include but are not limited to 1 μm, 2 μm, 3 μm, 4 μm, and 5 μm.

[0076] Optionally, the D50 particle sizes of the first inorganic thermal insulation powder and the second inorganic thermal insulation powder are independently 2 µm to 4 µm.

[0077] In some of the examples, in the silicone rubber, the first powder additive and the second powder additive independently include modified silicone oil, and the end group of the modified silicone oil includes at least one of trimethylsilyl, trimethoxysilyl, epoxydimethoxysilyl and vinyldimethylsilyl.

[0078] Furthermore, the terminal groups on both sides of the modified silicone oil are different.

[0079] Optionally, the first powder additive and the second powder additive independently include at least one of silicone oil terminated on both sides with trimethylsilyl and epoxydimethoxysilyl, silicone oil terminated on both sides with trimethylsilyl and trimethoxysilyl, and silicone oil terminated on both sides with vinyldimethylsilyl and trimethoxysilyl.

[0080] In some of the examples, in the silicone rubber, the viscosity of the first powder additive and the second powder additive are independently 5 mPa.s to 50 mPa.s.

[0081] It can be understood that the viscosity of the first powder additive and the second powder additive independently includes but is not limited to 5mPa.s, 10mPa.s, 20mPa.s, 30mPa.s, 40mPa.s, and 50mPa.s.

[0082] Powder additives of appropriate type and viscosity can promote the compatibility between inorganic thermal insulation powder and other components and obtain better fluidity.

[0083] In some of these examples, in silicone rubber, the tackifier includes silicone.

[0084] Optionally, the organic silicon includes at least one of a silicon-hydrogen group and an epoxy group.

[0085] Furthermore, silicone contains both silane groups and epoxy groups.

[0086] Suitable tackifiers combined with other components can effectively improve the adhesion of silicone rubber, especially the adhesion to aluminum (battery cell) substrates.

[0087] In some of the examples, in the silicone rubber, the first base rubber and the second base rubber respectively and independently include, by weight: 65-85 parts of a third alkoxy-modified vinyl silicone oil, 12-18 parts of a reinforcing filler, and 2.5-7 parts of a filler treating agent.

[0088] It can be understood that the components in the first base gum and the second base gum can be the same or different; further, by weight, the third alkoxy modified vinyl silicone oil includes but is not limited to 65 parts, 68 parts, 71 parts, 74 parts, 77 parts, 85 parts; the reinforcing filler includes but is not limited to 12 parts, 13 parts, 14 parts, 16 parts, 17 parts, 18 parts; the filler treatment agent includes but is not limited to 2.5 parts, 3.5 parts, 4.5 parts, 5.5 parts, 6.5 parts, 7 parts.

[0089] In some of the examples, in the silicone rubber, the first base rubber and the second base rubber are respectively composed of the following components, calculated by weight: 65-85 parts of the third alkoxy-modified vinyl silicone oil, 12-18 parts of the reinforcing filler and 2.5-7 parts of the filler treatment agent.

[0090] In some of the examples, in the silicone rubber, the first alkoxy-modified vinyl silicone oil, the second alkoxy-modified vinyl silicone oil and the third alkoxy-modified vinyl silicone oil include a pendant alkoxy group, and the number of carbon atoms of the pendant alkoxy group is 1 to 4.

[0091] Optionally, the side chains of the first alkoxy-modified vinyl silicone oil, the second alkoxy-modified vinyl silicone oil, and the third alkoxy-modified vinyl silicone oil each independently include at least one of a methoxy group and an ethoxy group.

[0092] In some of these examples, in the silicone rubber, the first alkoxy-modified vinyl silicone oil, the second alkoxy-modified vinyl silicone oil, and the third alkoxy-modified vinyl silicone oil include terminal vinyl silicone oils.

[0093] It can be understood that in some of the examples, in the silicone rubber, the first alkoxy-modified vinyl silicone oil, the second alkoxy-modified vinyl silicone oil and the third alkoxy-modified vinyl silicone oil are terminal vinyl silicone oils in which part of the side chain methyl groups are substituted by methoxy or ethoxy groups.

[0094] In some of the examples, in the silicone rubber, the viscosity of the first alkoxy-modified vinyl silicone oil, the second alkoxy-modified vinyl silicone oil, and the third alkoxy-modified vinyl silicone oil are independently 1000 mPa.s to 8000 mPa.s.

[0095] It can be understood that the viscosity of the first alkoxy-modified vinyl silicone oil, the second alkoxy-modified vinyl silicone oil and the third alkoxy-modified vinyl silicone oil can be the same or different; the viscosity of the first alkoxy-modified vinyl silicone oil, the second alkoxy-modified vinyl silicone oil and the third alkoxy-modified vinyl silicone oil independently includes but is not limited to 1000mPa.s, 2000mPa.s, 3000mPa.s, 4000mPa.s, 5000mPa.s, 6000mPa.s, 7000mPa.s, 8000mPa.s.

[0096] Optionally, the viscosity of the first alkoxy-modified vinyl silicone oil, the second alkoxy-modified vinyl silicone oil and the third alkoxy-modified vinyl silicone oil is independently 2000 mPa.s to 5000 mPa.s.

[0097] In some of the examples, in the silicone rubber, the third alkoxy-modified vinyl silicone oil includes at least two alkoxy-modified vinyl silicone oils of different viscosities.

[0098] It is understood that the specific surface areas of the reinforcing fillers in the first base glue and the second base glue include but are not limited to 50 m 2 / g, 60m 2 / g, 70m 2 / g, 80m 2 / g, 90m 2 / g、100m 2 / g, 110m 2 / g, 120m 2 / g, 130m 2 / g, 140m 2 / g, 150m 2 / g, 160m 2 / g, 170m 2 / g, 180m 2 / g, 190m 2 / g, 200m 2 / g.

[0099] Optionally, the specific surface area of ​​the reinforcing filler in the first base glue and the second base glue is independently 80 m 2 / g~150 m 2 / g.

[0100] In some of these examples, in silicone rubber, the reinforcing filler includes silica.

[0101] Further, white carbon black includes fumed white carbon black.

[0102] Fumed silica with a suitable specific surface area has a higher treatment rate, making the base rubber have better fluidity.

[0103] In some of these examples, in silicone rubbers, the filler treating agent includes a silane.

[0104] Optionally, the silane includes at least one of methylsilazane, vinylsilazane, dimethylvinylethoxysilane and trimethylsilanol.

[0105] Further, the filler treating agent includes at least one of methylsilazane and vinylsilazane.

[0106] In some of the examples, in the silicone rubber, the raw materials for preparing the first base rubber and the second base rubber independently include: 65-85 parts of the third alkoxy-modified vinyl silicone oil, 12-18 parts of reinforcing filler, 2.5-7 parts of filler treatment agent and 0.5-2 parts of water.

[0107] In some of these examples, in silicone rubber, the catalyst includes a platinum catalyst.

[0108] Optionally, the platinum catalyst comprises at least one of a Speier catalyst, a Lamoreaux catalyst, a Karstedt catalyst and an Ashby catalyst. Preferably, the platinum catalyst comprises at least one of a Karstedt catalyst and an Ashby catalyst.

[0109] In some of these examples, the platinum content in the platinum catalyst in silicone rubber is 1000 ppm~10000 ppm.

[0110] Optionally, the platinum content in the platinum catalyst is 2000 ppm~5000 ppm.

[0111] In some of the examples, the mass ratio of component A to component B in the silicone rubber is 1 to 3:1.

[0112] It is understood that in the organic silicone rubber provided in the present application, when used, component A and component B are mixed in a mass ratio of 1 to 3:1. Further, the mass ratio of component A to component B includes but is not limited to 1:1, 2:1, and 3:1.

[0113] Optionally, the mass ratio of component A to component B is 1:1.

[0114] An embodiment of the present application provides a method for preparing an organic silicone rubber, comprising the following steps:

[0115] 20-30 parts of the first base rubber, 20-50 parts of the first alkoxy-modified vinyl silicone oil, 30-50 parts of the first inorganic thermal insulation powder, 0.3-1.5 parts of the first powder additive and 0.1-1 parts of the catalyst are mixed by weight to prepare component A;

[0116] Calculated by weight, 20-30 parts of the second base rubber, 20-50 parts of the second alkoxy-modified vinyl silicone oil, 30-50 parts of the second inorganic thermal insulation powder, 0.3-1.5 parts of the second powder additive, 0.8-2.5 parts of the tackifier, 0.5-5 parts of the cross-linking agent and 0.01-0.1 parts of the inhibitor are mixed to prepare component B;

[0117] The inhibitor comprises vinyl siloxane, the crosslinking agent comprises at least one of linear end-hydrogenated silicone oil, MT type hydrogenated silicone oil and MQ type hydrogenated silicone oil; the first base glue and the second base glue comprise reinforcing fillers, and the specific surface areas of the reinforcing fillers in the first base glue and the second base glue are independently 50 m 2 / g~200 m 2 / g.

[0118] In some of the examples, in the method for preparing the silicone rubber, the method for preparing the first base rubber and the second base rubber comprises the following steps:

[0119] Calculated by weight, 65-85 parts of the third alkoxy-modified vinyl silicone oil, 2.5-7 parts of the filler treatment agent and 0.5-2 parts of water are kneaded, and then 12-18 parts of the reinforcing filler are added for refining, and then vacuumed at 150°C-190°C and the discharged material is cooled.

[0120] Optionally, the kneading time is 10 to 30 minutes; optionally, the refining temperature is room temperature (15°C to 30°C), and the refining time is 1 to 4 hours; optionally, the vacuum degree of vacuuming is -0.09MPa to -0.1Mpa, and the vacuuming time is 2 to 6 hours.

[0121] An embodiment of the present application provides a silicone rubber material, wherein the raw materials for preparing the silicone rubber material include the organic silicone rubber provided in the first aspect or the organic silicone rubber prepared by the preparation method provided in the second aspect.

[0122] The silicone rubber material of the present application has good heat insulation and flame retardant properties.

[0123] An embodiment of the present application provides a method for preparing a silicone rubber material, comprising the following steps:

[0124] The component A and the component B in the above organic silicone rubber or the organic silicone rubber prepared by the above preparation method are mixed to prepare a wet film, which is then cured to prepare a silicone rubber material.

[0125] In some of the embodiments, in the method for preparing the silicone rubber material, the mixing mass ratio of component A to component B is 1-3:1.

[0126] It is understood that the mixing mass ratio of component A to component B includes but is not limited to 1:1, 2:1, and 3:1.

[0127] Optionally, the mixing mass ratio of component A to component B is 1:1.

[0128] In some of the embodiments, in the method for preparing the silicone rubber material, the curing temperature is 15°C to 40°C.

[0129] In some of the embodiments, the method for preparing the silicone rubber material further comprises, after the curing step, a step of ceramicizing the cured film layer.

[0130] Furthermore, the ceramicizing temperature is 900°C to 1100°C.

[0131] It can be understood that in some of the examples, the method of preparing the wet film includes but is not limited to spraying.

[0132] An embodiment of the present application provides a battery, comprising the silicone rubber material provided above or the silicone rubber material prepared by the preparation method of the silicone rubber material above.

[0133] The battery of the present application includes the silicone rubber material provided in the present application or the silicone rubber material prepared by the preparation method of the silicone rubber material provided in the present application, which can give the battery better heat insulation and flame retardant properties.

[0134] It can be understood that batteries can be used in new energy vehicles, aerospace and other fields.

[0135] The present application is further described in detail below in conjunction with specific implementation methods, but the implementation methods of the present application are not limited thereto.

[0136] Example 1

[0137] (1) Base rubber

[0138] By mass, 30.33 parts of 2000mPa.s and 50.3 parts of 5000mPa.s methoxy-modified vinyl silicone oil, 1.82 parts of deionized water, and 4.55 parts of methylsilazane were put into a kneader and kneaded at room temperature for 15 minutes. 13 parts of a specific surface area of ​​120m 2 / g of fumed silica was refined at room temperature for 2 hours; heating was turned on, the material temperature was set to 165°C, the material temperature was maintained at 165°C, the vacuum degree was -0.093MPa, and vacuum was drawn for 5 hours; the material was cooled and the base rubber was obtained.

[0139] (2) Component A

[0140] Calculated by mass, 25 parts of base rubber, 30.8 parts of 2500mPa.s methoxy-modified vinyl silicone oil, 43 parts of silanized inorganic metal powder (a mixture of aluminum silicate, calcium silicate and aluminum hydroxide) with a D50 of 3.6µm, 0.8 parts of powder additive with a viscosity of 25mPa.s (a trimethylsilyl group at one end and an epoxydimethoxysilyl-terminated silicone oil at the other end), and 0.4 parts of Karstedt catalyst with a platinum content of 5000ppm were put into a planetary mixer and stirred evenly.

[0141] (3) Component B

[0142] Put 25 parts of base rubber, 26.37 parts of 2500mPa.s methoxy-modified vinyl silicone oil, 43 parts of silanized inorganic metal powder (a mixture of aluminum silicate, calcium silicate and aluminum hydroxide) with a D50 of 3.6µm, 0.8 parts of powder additive with a viscosity of 25mPa.s (a trimethylsilyl group at one end and an epoxy dimethoxysilyl-terminated silicone oil at the other end), 1.2 parts of thickener (organic silicone, containing silicon hydrogen and epoxy groups), 3.6 parts of cross-linking agent (MT-type hydrogen-containing silicone oil with a hydrogen content of 0.7%), and 0.03 parts of inhibitor (tetramethyldivinyldisiloxane) into a planetary mixer and stir evenly.

[0143] Example 2

[0144] (1) Base rubber

[0145] By mass, 38.52 parts of 2500mPa.s and 40 parts of 4000mPa.s ethoxy-modified vinyl silicone oil, 1.68 parts of deionized water, 4.6 parts of methylsilazane, and 0.2 parts of vinylsilazane were put into a kneader and kneaded at room temperature for 18 minutes. 15 parts of a specific surface area of ​​100m 2 / g of fumed silica, refined at room temperature for 2.5 hours; turn on the heating, set the material temperature to 170°C, maintain the material temperature at 170°C, vacuum at -0.095MPa for 4.5 hours, cool the material to obtain the base rubber.

[0146] (2) Component A

[0147] Calculated by mass, 23 parts of base rubber, 37 parts of 3000mPa.s ethoxy-modified vinyl silicone oil, 38 parts of silanized inorganic metal powder (a mixture of ferric silicate, magnesium silicate and magnesium hydroxide) with a D50 of 2.8µm, 1.0 part of a powder additive with a viscosity of 30mPa.s (a silicone oil with a trimethylsilyl group at one end and a trimethoxysilyl group at the other end), and 1.0 part of an Ashby catalyst with a platinum content of 3000ppm were put into a planetary mixer and stirred evenly.

[0148] (3) Component B

[0149] Put 23 parts of base rubber, 33.75 parts of 3000mPa.s ethoxy-modified vinyl silicone oil, 38 parts of silanized inorganic metal powder (a mixture of ferric silicate, magnesium silicate and magnesium hydroxide) with a D50 of 2.8µm, 1.0 part of powder additive with a viscosity of 30mPa.s (a trimethylsilyl-terminated silicone oil with a trimethoxysilyl-terminated silicone oil at one end and a epoxy-terminated silicone oil at the other end), 1.0 part of thickener (organic silicone, containing silane and epoxy groups), 3.2 parts of crosslinker (MQ-type hydrogen-containing silicone oil with a hydrogen content of 1.0%) and 0.05 part of inhibitor (tetramethyltetravinylcyclotetrasiloxane) into a planetary mixer and stir evenly.

[0150] Example 3

[0151] (1) Base rubber

[0152] By mass, 50.71 parts of 2000 mPa.s and 30 parts of 3000 mPa.s ethoxy-modified vinyl silicone oil, 1.89 parts of deionized water, 5.1 parts of methylsilazane, and 0.3 parts of vinylsilazane were put into a kneader and kneaded at room temperature for 25 minutes. 12 parts of a specific surface area of ​​150 m 2 / g of fumed silica was refined at room temperature for 3.5 hours; heating was turned on, the material temperature was set to 180°C, the material temperature was maintained at 180°C, the vacuum degree was -0.098MPa, and vacuum was drawn for 4 hours; the material was cooled and the base rubber was obtained.

[0153] (2) Component A

[0154] Calculated by mass, 20 parts of base rubber, 46.5 parts of 2000mPa.s ethoxy-modified vinyl silicone oil, 32 parts of silanized inorganic metal powder (a mixture of aluminum silicate, magnesium silicate and aluminum hydroxide) with a D50 of 2.3µm, 0.7 parts of powder additive with a viscosity of 45mPa.s (silicone oil with vinyldimethylsilyl at one end and trimethoxysilyl at the other end), and 0.8 parts of Ashby catalyst with a platinum content of 2500ppm were put into a planetary mixer and stirred evenly.

[0155] (3) Component B

[0156] By mass, 20 parts of base rubber, 40.28 parts of 2000mPa.s ethoxy-modified vinyl silicone oil, 32 parts of silanized inorganic metal powder (a mixture of aluminum silicate, magnesium silicate and aluminum hydroxide) with a D50 of 2.3µm, 0.7 parts of powder additive with a viscosity of 45mPa.s (silicone oil with vinyldimethylsilyl at one end and trimethoxysilyl at the other end), 2.2 parts of tackifier (organic silicone, containing silane and epoxy groups), 4.8 parts of cross-linking agent (straight-chain hydrogen-terminated silicone oil with a hydrogen content of 0.5%) and 0.02 parts of inhibitor (tetramethyltetravinylcyclotetrasiloxane) were put into a planetary mixer and stirred evenly.

[0157] Example 4

[0158] (1) Base rubber

[0159] By mass, 40.25 parts of 3500 mPa.s and 36 parts of 5000 mPa.s ethoxy-modified vinyl silicone oil, 1.35 parts of deionized water, and 5.4 parts of methylsilazane were put into a kneader and kneaded at room temperature for 30 minutes. 17 parts of a specific surface area of ​​90 m 2 / g of fumed silica was refined at room temperature for 3 hours; heating was turned on, the material temperature was set to 185°C, the material temperature was maintained at 185°C, the vacuum degree was -0.01MPa, and vacuum was drawn for 3.5 hours; the material was cooled and the base rubber was obtained.

[0160] (2) Component A

[0161] Calculated by mass, 28 parts of base rubber, 24.2 parts of 2500mPa.s ethoxy-modified vinyl silicone oil, 46 parts of silanized inorganic metal powder (a mixture of aluminum silicate, iron silicate and magnesium hydroxide) with a D50 of 3.4µm, 1.2 parts of powder additive with a viscosity of 18mPa.s (a trimethylsilyl-terminated silicone oil at one end and a trimethoxysilyl-terminated silicone oil at the other end), and 0.6 parts of Karstedt catalyst with a platinum content of 4000ppm were put into a planetary mixer and stirred evenly.

[0162] (3) Component B

[0163] Put 28 parts of base rubber, 21.13 parts of 2500mPa.s ethoxy-modified vinyl silicone oil, 46 parts of silanized inorganic metal powder (a mixture of aluminum silicate, iron silicate and magnesium hydroxide) with a D50 of 3.4µm, 1.2 parts of powder additive with a viscosity of 18mPa.s (a trimethylsilyl group at one end and a trimethoxysilyl-terminated silicone oil at the other end), 0.9 parts of thickener (organic silicone, containing silane and epoxy groups), 2.7 parts of cross-linking agent (MT-type hydrogen-containing silicone oil with a hydrogen content of 0.7%) and 0.07 parts of inhibitor (tetramethyldivinyldisiloxane) into a planetary mixer and stir evenly.

[0164] Comparative Example 1

[0165] The method is basically the same as Example 1, except that in step (1), the specific surface area of ​​the fumed silica is 300 m 2 / g.

[0166] Comparative Example 2

[0167] The method is basically the same as Example 1, except that, in Comparative Example 2, the methoxy-modified vinyl silicone oil in steps (1) to (3) of Example 1 is replaced with an equal mass of vinyl silicone oil (without methoxy modification).

[0168] Comparative Example 3

[0169] The method is basically the same as Example 2, except that in step (2) component A, no powder additive is added, and the amount of ethoxy-modified vinyl silicone oil is 38 parts; in step (3) component B, no powder additive is added, and the amount of ethoxy-modified vinyl silicone oil is 34.75 parts.

[0170] Comparative Example 4

[0171] The method is basically the same as Example 3, except that, in step (2), component A, no silanized inorganic metal powder is added, and the amount of ethoxylated vinyl silicone oil is 78.5 parts; and in step (3), component B, no silanized inorganic metal powder is added, and the amount of ethoxylated vinyl silicone oil is 72.28 parts.

[0172] Comparative Example 5

[0173] The method is basically the same as Example 3, except that in step (1), in component B of step (3), no tackifier is added, and the amount of ethoxy-modified vinyl silicone oil is 42.48 parts.

[0174] Comparative Example 6

[0175] The method is basically the same as Example 4, except that in component B of step (3), the cross-linking agent (MT-type hydrogen-containing silicone oil with a hydrogen content of 0.7%) in step (3) of Example 4 is replaced by an equal mass of side hydrogen-containing silicone oil with a hydrogen content of 0.7%.

[0176] Comparative Example 7

[0177] The method is basically the same as Example 4, except that in component B of step (3), the inhibitor (tetramethyldivinyldisiloxane) in step (3) of Example 4 is replaced by an equal mass of ethynylcyclohexanol.

[0178] A high-pressure two-component glue gun was used to mix component A and component B in a mass ratio of 1:1 and sprayed on a 6 series 6063 aluminum plate with a thickness of 200mm*100mm*1mm. The coating thickness was 1mm and the coating was placed at room temperature for 20 minutes to observe the curing condition. A butane spray gun was used to spray the center of the coating. The center temperature of the flame was 1000℃. A thermocouple was used to test the temperature of the back side of the center of the coating. The spraying time was 10 minutes. After the spraying, the integrity of the coating was observed. The results are shown in Table 1.

[0179] Table 1

[0180]

[0181] Among them, comparative examples 6 and 7 tested the adhesion, back temperature and post-firing integrity after 100 minutes of curing.

[0182] It can be seen from the results in Table 1 that the silicone rubber provided in the present application can be cured and formed at room temperature using a spraying process, has good adhesion, especially to 6 series 6063 aluminum, can be quickly ceramicized at high temperatures, and has good thermal insulation performance; when 1 mm thick silicone rubber is sprayed on a 1 mm thick aluminum plate, the center temperature of the flame is 1000°C, and the back temperature is only 143°C~156°C.

[0183] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0184] The above-described embodiments only express several implementation methods of the present application, which is convenient for understanding the technical solution of the present application in detail, but it cannot be understood as limiting the scope of protection of the invention patent. It should be pointed out that for ordinary technicians in this field, without departing from the concept of the present application, several modifications and improvements can be made, which all belong to the scope of protection of the present application. It should be understood that the technical solutions obtained by those skilled in the art through logical analysis, reasoning or limited experiments on the basis of the technical solutions provided in the present application are all within the scope of protection of the claims attached to the present application. Therefore, the scope of protection of the patent of this application shall be based on the content of the attached claims, and the description can be used to interpret the content of the claims.

Claims

1. An organic silicone rubber, characterized in that: It includes component A and component B; Calculated by weight, the component A includes: 20-30 parts of the first base rubber, 20-50 parts of the first alkoxy-modified vinyl silicone oil, 30-50 parts of the first inorganic thermal insulation powder, 0.3-1.5 parts of the first powder additive and 0.1-1 parts of the catalyst; Calculated by weight, the B component includes: 20-30 parts of the second base glue, 20-50 parts of the second alkoxy-modified vinyl silicone oil, 30-50 parts of the second inorganic thermal insulation powder, 0.3-1.5 parts of the second powder additive, 0.8-2.5 parts of the tackifier, 0.5-5 parts of the cross-linking agent and 0.01-0.1 parts of the inhibitor; The inhibitor comprises vinyl siloxane, the crosslinking agent comprises at least one of linear end-hydrogenated silicone oil, MT type hydrogenated silicone oil and MQ type hydrogenated silicone oil; the first base glue and the second base glue comprise reinforcing fillers, and the specific surface areas of the reinforcing fillers in the first base glue and the second base glue are independently 50 m 2 / g~200 m 2 / g.

2. The organic silicone rubber according to claim 1, characterized in that The inhibitor includes at least one of tetramethyldivinyldisiloxane and tetramethyltetravinylcyclotetrasiloxane.

3. The organic silicone rubber according to claim 1, characterized in that The first inorganic thermal insulation powder and the second inorganic thermal insulation powder each independently comprise a silanized modified inorganic metal powder; optionally, the inorganic metal powder comprises at least one of aluminum silicate, iron silicate, calcium silicate, magnesium silicate, aluminum hydroxide and magnesium hydroxide; And / or, the D50 particle sizes of the first inorganic thermal insulation powder and the second inorganic thermal insulation powder are independently 1 µm to 5 µm; And / or, the first powder auxiliary agent and the second powder auxiliary agent each independently include modified silicone oil, and the terminal group of the modified silicone oil includes at least one of trimethylsilyl, trimethoxysilyl, epoxydimethoxysilyl and vinyldimethylsilyl; And / or, the viscosity of the first powder auxiliary agent and the second powder auxiliary agent is independently 5 mPa.s to 50 mPa.s.

4. The organic silicone rubber according to any one of claims 1 to 3, characterized in that: The tackifier includes silicone; optionally, the silicone includes at least one of a silane group and an epoxy group; and / or, by weight, the first base glue and the second base glue each independently include: 65 to 85 parts of a third alkoxy-modified vinyl silicone oil, 12 to 18 parts of a reinforcing filler and 2.5 to 7 parts of a filler treatment agent.

5. The organic silicone rubber according to claim 4, characterized in that: The first alkoxy-modified vinyl silicone oil, the second alkoxy-modified vinyl silicone oil and the third alkoxy-modified vinyl silicone oil include a side alkoxy group, and the number of carbon atoms of the side alkoxy group is 1 to 4; optionally, the side chains of the first alkoxy-modified vinyl silicone oil, the second alkoxy-modified vinyl silicone oil and the third alkoxy-modified vinyl silicone oil independently include at least one of a methoxy group and an ethoxy group; And / or, the viscosity of the first alkoxy-modified vinyl silicone oil, the second alkoxy-modified vinyl silicone oil and the third alkoxy-modified vinyl silicone oil is independently 1000 mPa.s to 8000 mPa.s.

6. The organic silicone rubber according to any one of claims 1 to 3 and 5, characterized in that: The reinforcing filler includes white carbon black; and / or, the filler treating agent comprises silane; optionally, the silane comprises at least one of methylsilazane, vinylsilazane, dimethylvinylethoxysilane and trimethylsilanol; and / or, the catalyst comprises a platinum catalyst; And / or, the platinum content in the platinum catalyst is 1000 ppm to 10000 ppm.

7. A method for preparing organic silicone rubber, characterized in that: The following steps are involved: 20-30 parts of the first base rubber, 20-50 parts of the first alkoxy-modified vinyl silicone oil, 30-50 parts of the first inorganic thermal insulation powder, 0.3-1.5 parts of the first powder additive and 0.1-1 parts of the catalyst are mixed by weight to prepare component A; Calculated by weight, 20-30 parts of the second base rubber, 20-50 parts of the second alkoxy-modified vinyl silicone oil, 30-50 parts of the second inorganic thermal insulation powder, 0.3-1.5 parts of the second powder additive, 0.8-2.5 parts of the tackifier, 0.5-5 parts of the cross-linking agent and 0.01-0.1 parts of the inhibitor are mixed to prepare component B; The inhibitor comprises vinyl siloxane, the crosslinking agent comprises at least one of linear end-hydrogenated silicone oil, MT type hydrogenated silicone oil and MQ type hydrogenated silicone oil; the first base glue and the second base glue comprise reinforcing fillers, and the specific surface areas of the reinforcing fillers in the first base glue and the second base glue are independently 50 m 2 / g~200 m 2 / g.

8. A silicone rubber material, characterized in that: The raw materials for preparing the silicone rubber material include the organic silicone rubber according to any one of claims 1 to 6 or the organic silicone rubber prepared by the preparation method according to claim 7.

9. A method for preparing a silicone rubber material, characterized in that: The following steps are involved: Mixing component A and component B in the organic silicone rubber according to any one of claims 1 to 6 or the organic silicone rubber prepared by the preparation method according to claim 7 to prepare a wet film, and curing the wet film to prepare a silicone rubber material; And / or, the mixing mass ratio of the component A to the component B is 1-3:

1.

10. A battery, characterized in that: It comprises a battery core and a heat insulating layer arranged on at least one side of the battery core, wherein the heat insulating layer comprises the silicone rubber material according to claim 8 or the silicone rubber material prepared by the method for preparing the silicone rubber material according to claim 9.

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