Intelligent temperature control rubber composite material as well as preparation method and application thereof

Abstract

The invention discloses an intelligent temperature control rubber composite material and a preparation method and application thereof, the intelligent temperature control rubber composite material comprises a rubber component A and a rubber component B, and the mass ratio of the rubber component A to the rubber component B is 1: (1-5). The preparation method is simple, the preparation efficiency is high, the industrial production and manufacturing requirements are met, and the composite rubber material prepared through the preparation method has obvious intelligent temperature control performance and good damping performance and is suitable for high-heating or extremely cold vibration reduction and damping occasions.

Description

Technical Field

[0001] The present invention belongs to the technical field of rubber materials, and in particular relates to an intelligent temperature-controlling rubber composite material and a preparation method and application thereof. Background Art

[0002] As the global climate gradually warms, extreme climate events occur frequently, and the environment becomes increasingly polluted, the energy consumption for cooling or heating is increasing, and the life of materials is also affected. People are looking for various low-energy technologies and more resistant materials. Various application fields have put forward higher requirements for rubber composite materials, requiring rubber to have higher aging resistance and better protection for the products used, especially in the fields of aerospace, transportation, nuclear energy and nuclear power, which put forward more stringent requirements on the aging resistance and temperature regulation function of composite rubber materials.

[0003] For example, rail transit vehicles such as high-speed rail and subways have very high running speeds. Rail transit vehicles without vibration reduction have low comfort levels, and the dynamic vibration process has a great impact on each component, which can easily cause damage to each component. In addition, high-speed vehicles generate a lot of heat. Failure to dissipate heat in time will affect the normal operation of each component and shorten the service life of each component. Therefore, important areas of the current national economy require rubber materials with excellent cooling or warmth retention properties. The rubber materials currently on the market are mainly thermally conductive rubber composite materials. Thermally conductive rubber only has the function of thermal conductivity and lacks the function of intelligent temperature balance. In the summer in the south, when the temperature is high, thermally conductive rubber absorbs heat quickly and has a high temperature itself, which reduces its aging resistance. In the winter in the north, when the temperature is low, the temperature of the thermally conductive rubber itself is low and the damping performance is reduced. If the rubber can be given the function of active temperature regulation, the application effect of rubber in key fields such as transportation, aerospace, etc. can be improved, and its application scenarios can be expanded. Summary of the invention

[0004] In order to solve the above problems, the purpose of the present invention is to provide an intelligent temperature-controlling rubber composite material, which regulates heat balance through infrared emission, absorption or dynamic heat generation, has obvious temperature control effect, and has good damping performance, and can be used in vibration damping occasions with high fever or extreme cold.

[0005] The present invention is achieved through the following technical solutions: An intelligent temperature-controlling rubber composite material comprises a rubber component A and a rubber component B, wherein the rubber component A and the rubber component B The mass ratio of B is 1:1~5, among which, The rubber component A, by weight, comprises: Rubber base 1 50 parts Infrared emitting filler 1 10-80 parts Plasticizer 0.5-5 parts 1-5 parts of vulcanizing agent; The rubber component B, by weight, comprises: Rubber base 2 100 parts Infrared emitting filler 2 10-100 parts Plasticizer 1-5 parts Vulcanizing agent 0.5-2 parts.

[0006] Preferably, the rubber matrix 1 is selected from EPDM rubber or EPDM rubber, and has a number average molecular weight of 50,000-120,000, preferably 80,000-100,000.

[0007] Preferably, the infrared emitting filler 1 is one or more of carbon black, graphite or carbon nanotubes, with a particle size of 20 nanometers to 50 micrometers; the main infrared emission band is 2.5 to 25 micrometers, and the infrared emissivity of the main band is above 0.9.

[0008] Preferably, the rubber matrix 2 is selected from EPDM rubber or EPDM rubber, and the number average molecular weight thereof is 150,000-250,000, preferably 180,000-200,000.

[0009] Preferably, the infrared emitting filler 2 is one or more of quartz powder, silicon dioxide, silicon dioxide or titanium dioxide, with a particle size of 50 nanometers to 50 microns; the infrared emission band is mainly 2.5 to 25 microns, and the infrared emissivity in the 8 to 13 micron band is greater than 0.6.

[0010] The mass ratio of the rubber component A to the rubber component B is controlled within a range of 1:1-5. The rubber matrix in the rubber component A has a relatively small molecular weight and good fluidity, and is used for efficiently dispersing the infrared emitting filler 1. The rubber matrix in the rubber component B has a relatively large molecular weight and a strong shearing effect, and is used for efficiently dispersing the infrared emitting filler 2. In addition, the use of rubber matrices with different molecular weights has different molecular chain motion states, which is helpful for causing the molecular chains to generate heat by friction under dynamic stress in a low temperature environment, thereby regulating the temperature.

[0011] The infrared emitting filler 1 selected in the present invention has an infrared emissivity of more than 0.9 in the main band, and it mainly provides infrared emissivity. The selected infrared emitting filler 2 is white in color, and its main function is to emit infrared rays and reflect thermal radiation in a high temperature environment, and it can also reduce the absorption of thermal radiation by the infrared emitting filler 1; the synergistic effect of the two fillers can achieve a good radiation cooling effect.

[0012] Preferably, the plasticizer is one or more of liquid EPDM and liquid polybutadiene; the vulcanizer is one or more of benzoyl peroxide, dicumyl peroxide, tert-butyl perbenzoate or tert-butyl peroxide 2-ethylhexanoate.

[0013] The present invention also provides a method for preparing the above-mentioned intelligent temperature-controlling rubber composite material, comprising the following steps: (1) applying an interfacial modifier to the surfaces of the infrared emitting filler 1 and the infrared emitting filler 2, respectively, to obtain a modified infrared emitting filler 1 and a modified infrared emitting filler 2; (2) Put the rubber matrix 1 into an open mill for plasticization, then add the infrared emitting filler 1, and mix thoroughly for 5-15 minutes to obtain a rubber component A; (3) Put the rubber matrix 2 into an open mill for plastication, then add the infrared emitting filler 2, and mix thoroughly for 20-40 minutes to obtain a rubber component B; (4) The rubber component A and the rubber component B are mixed evenly, and hot-pressed and vulcanized to obtain the intelligent temperature-controlled rubber composite material.

[0014] In step (1), the interface modifier is mainly a silane coupling agent with high emissivity in the 8-13 micron band and a group that can participate in chemical reactions. Preferably, the interface modifier is vinyl trimethoxy silane or vinyl triethoxy silane, or a mixture of the two. The mass ratio of the infrared emitting filler 1 or the infrared emitting filler 2 to the interface modifier is 10-1000:1, preferably 50-200:1.

[0015] In step (1), the interface modifier is dissolved in an organic solvent such as ethanol, methanol, toluene, and the mass ratio of the interface modifier to the organic solvent is 1 to 10:100. The interface modifier is applied to the surface of the infrared emitting filler by spraying under stirring or high-speed mixing conditions, and then naturally air-dried or low-temperature dried. The air-drying or drying temperature is not higher than 100°C.

[0016] Preferably, in step (4), the mixing time is 10 to 20 minutes; the vulcanization temperature is 160 to 210° C., and the vulcanization time is 5 to 15 minutes.

[0017] The present invention also provides the application of the above-mentioned intelligent temperature-controlling rubber composite material in the fields of transportation, aerospace or nuclear energy and nuclear power, which is suitable for vibration damping occasions with high heat or extreme cold.

[0018] Compared with the prior art, the present invention has the following beneficial effects: The rubber composite material provided by the present invention adopts an isomeric two-phase co-vulcanization system. The two-phase system adopts rubber matrices of different molecular weights and different mixing times according to the characteristics of the fillers selected respectively, so as to facilitate the uniform dispersion of the infrared emitting filler. The two infrared emitting fillers work synergistically, and according to the need of cooling, the heat dissipation effect can be enhanced, and the equilibrium temperature is mainly contributed. Two rubbers with two different viscoelastic properties are formed by two different molecular weights and different processing times, which can amplify the difference in viscoelastic properties at low temperatures, enhance dynamic heat generation, and help balance the temperature of the rubber composite material under low temperature conditions. Once the entire composite system is vulcanized, the matrix phase and the infrared emitting filler are cross-linked and vulcanized together, and the heat balance is regulated by infrared emission, absorption or dynamic heat generation. The preparation method of the present invention is simple, the preparation efficiency is high, and the industrialized production and manufacturing requirements are met. The composite rubber material prepared by the present invention has obvious intelligent temperature control performance and good damping performance, and is suitable for vibration damping occasions with high fever or extreme cold. DETAILED DESCRIPTION

[0019] The present invention is further described below by means of specific implementation methods. The following examples are specific implementation methods of the present invention, but the implementation methods of the present invention are not limited to the following examples.

[0020] Unless otherwise specified, various raw materials, reagents, instruments and equipment used in the present invention can be purchased from the market or prepared by existing methods. Embodiment 1:

[0021] Step 1: Take 100 g of carbon black with an average particle size of 2 μm and dry it at 90°C for 10 hours; Step 2: Take 100 ml of anhydrous ethanol and put it into a beaker, add 1 g of vinyl trimethoxysilane under stirring, and stir for 5 minutes to obtain an ethanol solution of vinyl trimethoxysilane; spray the ethanol solution of vinyl trimethoxysilane on 100 g of the dried carbon black under stirring, and after the spraying is completed, put it into an oven at 60°C to dry, and obtain an infrared emitting filler-silane modified carbon black; Step 3: Take 100 g of quartz powder with an average particle size of 6.5 μm and dry it at 90°C for 10 hours; Step 4: Take 100 ml of anhydrous ethanol and put it into a beaker. Add 1 g of vinyl trimethoxysilane under stirring and stir for 5 minutes to obtain an ethanol solution of vinyl trimethoxysilane. Spray the ethanol solution of vinyl trimethoxysilane on 100 g of dried quartz powder under stirring. After spraying, put it into a 60°C oven to dry to obtain infrared emitting filler - silane modified quartz powder; Step 5: 50 g of EPDM rubber with a molecular weight of 90,000 was put into an open mill for plastication for 3 minutes, followed by adding 1 g of liquid butadiene and 80 g of silane-modified carbon black, and mixing for 3 minutes, then adding 1 g of diisopropylbenzene peroxide, and mixing for 5 minutes to obtain rubber component A; Step 6: 100 g of EPDM rubber with a molecular weight of 180,000 was put into an open mill for plastication for 10 minutes, and then 2 g of liquid butadiene, 100 g of silane-modified quartz powder and 1 g of diisopropylbenzene peroxide were added, and the mixing was continued for 15 minutes to obtain rubber component B; Step 7: Put the rubber component A and the rubber component B into an open mill and mix them for 15 minutes. Hot press vulcanize the evenly mixed cross-linked material at 180°C for 10 minutes, trim the edges, and obtain an intelligent temperature-controlled rubber composite material. Embodiment 2:

[0022] Step 1: Take 100 g of graphite with an average particle size of 20 μm and dry it at 90°C for 10 hours; Step 2: Take 100 ml of anhydrous ethanol and put it into a beaker, add 2 g of vinyl triethoxysilane under stirring, and stir for 5 minutes to obtain an ethanol solution of vinyl triethoxysilane; spray the ethanol solution of vinyl triethoxysilane on 100 g of dried graphite under stirring, and after the spraying is completed, put it into a 40°C oven to dry, and obtain an infrared emitting filler-silane modified graphite; Step 3: Take 100 g of precipitated silica with an average particle size of 20 μm and dry it at 90° C. for 10 hours; Step 4: Take 100 ml of anhydrous ethanol and put it into a beaker, add 1 g of vinyl trimethoxysilane under stirring, and stir for 5 minutes to obtain an ethanol solution of vinyl trimethoxysilane; spray the ethanol solution of vinyl trimethoxysilane on 100 g of dried silica under stirring, and after the spraying is completed, put it into an oven at 60°C to dry, and obtain an infrared emitting filler-silane modified silica; Step 5: Take 50g of EPDM rubber with a molecular weight of 100,000 and put it into an open mill for plastication for 3 minutes, then add 1.5g of liquid butadiene and 40g of silane-modified graphite, mix for 3 minutes, add 2g of diisopropylbenzene peroxide, and continue mixing for 5 minutes to obtain rubber component A; Step 6: Take 100g of EPDM rubber with a molecular weight of 200,000 and put it into an open mill for plasticization for 5 minutes, then add 2g of liquid butadiene, 1.5g of diisopropylbenzene peroxide, and 50g of silane-modified silica, and continue mixing for 15 minutes to obtain rubber component B.

[0023] Step 7: Put the rubber component A and the rubber component B into an open mill and mix them for 15 minutes. The mixture is cross-linked and hot-pressed and vulcanized at 190° C. for 10 minutes, and the edges are trimmed to obtain an intelligent temperature-controlled rubber composite material. Embodiment 3:

[0024] Step 1: Take 100 g of graphite with an average particle size of 20 μm and dry it at 90°C for 12 hours; Step 2: Take 100 ml of methanol and put it into a beaker, add 2 g of vinyl triethoxysilane under stirring, and stir for 5 minutes to obtain an ethanol solution of vinyl triethoxysilane; spray the ethanol solution of vinyl triethoxysilane on 100 g of dried graphite under stirring, and after the spraying is completed, put it into a 40°C oven to dry, and obtain an infrared emitting filler-silane modified graphite; Step 3: Take 100 g of precipitated silica with an average particle size of 20 μm and dry it at 90° C. for 10 hours; Step 4: Take 100 ml of anhydrous ethanol and put it into a beaker. Add 1 g of vinyl trimethoxysilane under stirring and stir for 5 minutes to obtain an ethanol solution of vinyl trimethoxysilane. Spray the ethanol solution of vinyl trimethoxysilane on 100 g of dried silica under stirring. After spraying, dry it in an oven at 60°C to obtain an infrared emitting filler - silane-modified silica. Step 5: Take 50g of EPDM rubber with a molecular weight of 100,000 and put it into an open mill for plastication for 3 minutes, then add 1.5g of liquid butadiene and 80g of silane-modified graphite, mix for 5 minutes, add 2g of diisopropylbenzene peroxide, and continue mixing for 5 minutes to obtain rubber component A; Step 6: Take 100g of EPDM rubber with a molecular weight of 200,000 and put it into an open mill for plastication for 5 minutes, then add 2g of liquid butadiene, 1.5g of diisopropylbenzene peroxide, and 100g of silane-modified silica, and continue mixing for 15 minutes to obtain rubber component B; Step 7: Put the rubber component A and the rubber component B into an open mill and mix them for 15 minutes. The mixture is cross-linked and hot-pressed and vulcanized at 190° C. for 10 minutes, and the edges are trimmed to obtain an intelligent temperature-controlled rubber composite material. Embodiment 4:

[0025] Step 1: Take 100 g of graphite with an average particle size of 20 μm and dry it at 90°C for 12 hours; Step 2: Take 100 ml of methanol and put it into a beaker, add 2 g of vinyl triethoxysilane under stirring, and stir for 5 minutes to obtain an ethanol solution of vinyl triethoxysilane; spray the ethanol solution of vinyl triethoxysilane on 100 g of dried graphite under stirring, and after the spraying is completed, put it into a 40°C oven to dry, and obtain an infrared emitting filler-silane modified graphite; Step 3: Take 100 g of titanium dioxide with an average particle size of 0.3 μm and dry it at 90° C. for 10 hours; Step 4: Take 100 ml of anhydrous ethanol and put it into a beaker, add 1 g of vinyl trimethoxysilane under stirring, and stir for 5 minutes to obtain an ethanol solution of vinyl trimethoxysilane; spray the ethanol solution of vinyl trimethoxysilane on 100 g of dried titanium dioxide under stirring, and after the spraying is completed, put it into an oven at 60°C to dry, and obtain an infrared emitting filler-silane modified silica; Step 5: Take 50g of EPDM rubber with a molecular weight of 90,000 and put it into an open mill for plastication for 3 minutes, then add 1g of liquid butadiene, 0.5g of liquid EPDM and 50g of graphite, mix for 5 minutes, add 2g of diisopropylbenzene peroxide, and continue mixing for 5 minutes to obtain rubber component A; Step 6: Take 100g of EPDM rubber with a molecular weight of 200,000 and put it into an open mill for plastication for 5 minutes, then add 1.0g of liquid butadiene, 2.0g of diisopropylbenzene peroxide, and 50g of silane-modified titanium dioxide, and continue mixing for 15 minutes to obtain rubber component B; Step 7: Put the rubber component A and the rubber component B into an open mill and mix them for 15 minutes. The mixture is cross-linked and hot-pressed and vulcanized at 190° C. for 10 minutes, and the edges are trimmed to obtain an intelligent temperature-controlled rubber composite material. Embodiment 5:

[0026] Step 1: Take 100 g of carbon nanotubes with an average particle size of 25 nm and dry them at 90° C. for 10 hours; Step 2: Take 50 ml of toluene and put it into a beaker, add 0.15 g of vinyl trimethoxysilane under stirring, and stir for 5 minutes to obtain a toluene solution of vinyl triethoxysilane; spray the toluene solution of vinyl triethoxysilane on 10 g of the dried carbon nanotubes under stirring, and after the spraying is completed, put it into a 90°C oven to dry, to obtain an infrared emitting filler-silane modified carbon nanotubes; Step 3: Take 100 g of fumed silica with an average particle size of 50 nm and dry it at 90° C. for 10 hours; Step 4: Take 50 ml of anhydrous ethanol and put it into a beaker. Add 0.1 g of vinyl trimethoxysilane under stirring and stir for 5 minutes to obtain an ethanol solution of vinyl trimethoxysilane. Spray the ethanol solution of vinyl trimethoxysilane on 10 g of dried silica under stirring. After spraying, dry it in an oven at 60°C to obtain an infrared emitting filler - silane-modified silica. Step 5: 50 g of EPDM with a molecular weight of 80,000 was put into an open mill for plastication for 3 minutes, followed by adding 0.5 g of liquid EPDM and 10 g of silane-modified carbon nanotubes, mixing for 5 minutes, and then adding 2 g of diisopropylbenzene peroxide, and mixing for another 5 minutes to obtain a rubber component A; Step 6: Take 100g of 180000 EPDM rubber and put it into an open mill for plastication for 5 minutes, then add 1.5g of liquid butadiene, 2.0g of diisopropylbenzene peroxide, and 10g of silane-modified fumed silica, and continue mixing for 25 minutes to obtain rubber component B; Step 7: Put the rubber component A and the rubber component B into an open mill and mix them for 15 minutes. Hot press vulcanize the evenly mixed cross-linked material at 180°C for 10 minutes, trim the edges, and obtain an intelligent temperature-controlled rubber composite material.

[0027] Comparative Example 1:

[0028] Step 1: Take 100 g of graphite with an average particle size of 20 μm and dry it at 90°C for 10 hours.

[0029] Step 2: Take 100 ml of anhydrous ethanol and put it into a beaker, add 2 g of vinyl triethoxysilane under stirring, and stir for 5 minutes to obtain an ethanol solution of vinyl triethoxysilane; spray the ethanol solution of vinyl triethoxysilane on 100 g of dried graphite under stirring, and after the spraying is completed, put it into a 40°C oven to dry, and obtain an infrared emitting filler-silane modified graphite; Step 3: Take 150g of EPDM rubber with a molecular weight of 180,000 and put it into an open mill for plasticization for 5 minutes, then add 2g of liquid butadiene and 100g of silane-modified graphite. After mixing for 5 minutes, add 2g of diisopropylbenzene peroxide and continue mixing for 15 minutes. The evenly mixed cross-linked rubber is hot-pressed and vulcanized at 190°C for 10 minutes, and the edges are trimmed to obtain comparison sample 1.

[0030] Comparative Example 2:

[0031] Step 1: Take 100 g of graphite with an average particle size of 20 μm and dry it at 90°C for 12 hours; Step 2: Take 100 ml of methanol and put it into a beaker, add 2 g of vinyl triethoxysilane under stirring, and stir for 5 minutes to obtain an ethanol solution of vinyl triethoxysilane; spray the ethanol solution of vinyl triethoxysilane on 100 g of dried graphite under stirring, and after the spraying is completed, put it into a 40°C oven to dry, and obtain an infrared emitting filler-silane modified graphite; Step 3: Take 100 g of precipitated silica with an average particle size of 20 μm and dry it at 90° C. for 10 hours; Step 4: Take 100 ml of anhydrous ethanol and put it into a beaker. Add 1 g of vinyl trimethoxysilane under stirring and stir for 5 minutes to obtain an ethanol solution of vinyl trimethoxysilane. Spray the ethanol solution of vinyl trimethoxysilane on 100 g of dried silica under stirring. After spraying, dry it in an oven at 60°C to obtain an infrared emitting filler - silane-modified silica. Step 5: Take 50g of EPDM rubber with a molecular weight of 100,000 and put it into an open mill for plastication for 3 minutes, then add 1.5g of liquid butadiene and 2g of diisopropylbenzene peroxide, and continue mixing for 10 minutes to obtain rubber component A; Step 6: Take 100g of EPDM rubber with a molecular weight of 200,000 and put it into an open mill for plastication for 5 minutes, then add 2g of liquid butadiene, 1.5g of diisopropylbenzene peroxide, 80g of silane-modified graphite, and 100g of silane-modified silica, and continue mixing for 15 minutes to obtain rubber component B; Step 7: Put rubber component A and rubber component B into an open mill and mix for 15 minutes. Hot-press vulcanize the evenly mixed mixture at 190°C for 10 minutes, trim the edges, and obtain comparative sample 2.

[0032] The intelligent temperature-control composite rubber materials prepared in Examples 1 to 5 and Comparative Examples 1 to 2 and their comparative samples were subjected to comprehensive performance tests. The test methods and test standards were as follows: the samples were hung or placed with heat-insulating materials to isolate the heat conduction path, and the temperature of the environment and the samples was tested with an infrared temperature measuring gun. The intelligent temperature control ability of the samples was evaluated by comparing the difference between the ambient temperature (high temperature environment 35°C) and the sample surface temperature; the indoor temperature of the compression heat generation test room was adjusted to 20°C with an air conditioner, and the compression heat generation performance of the rubber composite material was tested on the compression heat generation test machine, and the surface temperature of the rubber composite material sample was tested with an infrared temperature measuring gun. With reference to GB / T531-1992, the hardness of the samples was measured with a Shore durometer; the infrared emissivity of the samples was tested with a Fourier transform infrared spectrometer; the damping factor of the samples was obtained with dynamic mechanical analysis (DMA); and the test results are shown in Table 1.

[0033] Table 1 Performance test table of intelligent temperature control rubber composite materials

[0034] It can be seen from Comparative Example 1 that the single infrared emitting filler 1 can both dissipate heat by radiating infrared rays and absorb thermal radiation in a high temperature environment, resulting in that the rubber composite material cannot dissipate heat well and the temperature drop is not obvious.

[0035] From the comparison between Example 3 and Comparative Example 2, it can be seen that the two-phase rubber system can generate heat by friction in a low temperature environment to avoid a sharp drop in temperature; however, due to the uneven dispersion of the filler, the frictional heat generated by the molecular chain is not obvious, and the temperature increase value is low. This also shows that there is a synergistic effect between the two-phase rubber and the two fillers.

[0036] It can be seen from the embodiments of the present invention that the present invention adopts a homogeneous and heterogeneous two-phase co-vulcanization system, the matrix phase and the infrared emitting filler are cross-linked and vulcanized together, and the heat balance is regulated by infrared emission, absorption or dynamic heat generation. The prepared intelligent temperature-control rubber composite material has obvious temperature control effect and good damping performance, and is expected to play an important role in vibration damping occasions with high fever or extreme cold.

Claims

1. An intelligent temperature-controlling rubber composite material, characterized in that: It comprises a rubber component A and a rubber component B, wherein the mass ratio of the rubber component A to the rubber component B is 1:1-5, wherein: The rubber component A, by weight, comprises: Rubber base 1 50 parts Infrared emitting filler 1 10-80 parts Plasticizer 0.5-5 parts 1-5 parts of vulcanizing agent; The rubber component B, by weight, comprises: Rubber base 2 100 parts Infrared emitting filler 2 10-100 parts Plasticizer 1-5 parts Vulcanizing agent 0.5-2 parts.

2. The intelligent temperature-controlling rubber composite material according to claim 1, characterized in that: The rubber matrix 1 is selected from EPDM rubber or EPDM rubber, and has a number average molecular weight of 50,000-120,000, preferably 80,000-100,000.

3. The intelligent temperature-controlling rubber composite material according to claim 1, characterized in that: The infrared emitting filler 1 is one or more of carbon black, graphite or carbon nanotubes, and has a particle size of 20 nanometers to 50 micrometers.

4. The intelligent temperature-controlling rubber composite material according to claim 1, characterized in that: The rubber matrix 2 is selected from EPDM rubber or EPDM rubber, and has a number average molecular weight of 150,000-250,000, preferably 180,000-200,000.

5. The intelligent temperature-controlling rubber composite material according to claim 1, characterized in that: The infrared emitting filler 2 is one or more of quartz powder, silicon dioxide, silicon dioxide or titanium dioxide, and the particle size is 50 nanometers to 50 micrometers.

6. The intelligent temperature-controlling rubber composite material according to claim 1, characterized in that: The plasticizer is one or more of liquid EPDM and liquid polybutadiene; the vulcanizer is one or more of benzoyl peroxide, dicumyl peroxide, tert-butyl perbenzoate or tert-butyl peroxide 2-ethylhexanoate.

7. The method for preparing the intelligent temperature-controlling rubber composite material according to any one of claims 1 to 6, characterized in that: The steps include: (1) applying an interfacial modifier to the surfaces of the infrared emitting filler 1 and the infrared emitting filler 2 respectively to obtain a modified infrared emitting filler 1 and a modified infrared emitting filler 2; (2) Put the rubber matrix 1 into an open mill for plasticization, then add the infrared emitting filler 1, and mix thoroughly for 5-15 minutes to obtain a rubber component A; (3) Put the rubber matrix 2 into an open mill for plastication, then add the infrared emitting filler 2, and mix thoroughly for 20-40 minutes to obtain a rubber component B; (4) The rubber component A and the rubber component B are mixed evenly, and hot-pressed and vulcanized to obtain the intelligent temperature-controlled rubber composite material.

8. The method for preparing the intelligent temperature-controlling rubber composite material according to claim 7, characterized in that: In step (1), the interface modifier is one of vinyl trimethoxy silane and vinyl triethoxy silane or a mixture of the two; the mass ratio of the infrared emitting filler 1 or the infrared emitting filler 2 to the interface modifier is 10-1000:1, preferably 50-200:

1.

9. The method for preparing the intelligent temperature-controlling rubber composite material according to claim 7, characterized in that: In step (4), the mixing time is 10 to 20 minutes; the vulcanization temperature is 160 to 210° C., and the vulcanization time is 5 to 15 minutes.

10. Application of the intelligent temperature-controlling rubber composite material according to any one of claims 1 to 6 in the fields of transportation, aerospace or nuclear energy and nuclear power, characterized in that: Used for vibration damping in high heat or extreme cold situations.

Images