Intelligent temperature control rubber composite material and preparation method and application thereof
The intelligent temperature-controlled rubber composite material, developed through a homogeneous two-phase co-vulcanization system, solves the problem of performance instability of thermally conductive rubber materials under extreme climates, achieving improved temperature control and damping performance, and is suitable for fields such as aerospace and transportation.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- GUANGDONG UNIV OF TECH
- Filing Date
- 2024-10-18
- Publication Date
- 2026-06-09
AI Technical Summary
Existing thermally conductive rubber materials lack intelligent temperature regulation capabilities, resulting in unstable performance under extreme climates, which affects the service life and comfort of components, especially in aerospace, transportation and other fields.
By employing a homogeneous two-phase co-vulcanization system, heat balance is regulated through infrared emission and absorption or dynamic heat generation. The synergistic effect of rubber matrices of different molecular weights and infrared emitting fillers is utilized to form intelligent temperature-controlled rubber composite materials.
It achieves temperature control and damping performance improvement in high-heat or extremely cold environments, making it suitable for vibration damping applications and meeting the needs of industrial production.
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Abstract
Description
Technical Field
[0001] This invention belongs to the field of rubber material technology, specifically relating to an intelligent temperature-controlled rubber composite material, its preparation method, and its application. Background Technology
[0002] With global warming, more frequent extreme weather events, and increasing environmental pollution, energy consumption for cooling and heating is rising, impacting the lifespan of materials. This has led to a search for low-energy technologies and more resistant-to-aging materials. Various application fields are placing higher demands on rubber composite materials, requiring superior aging resistance and better protection for the products they are used in. This is particularly true in aerospace, transportation, and nuclear power industries, where stringent requirements are placed on the aging resistance and temperature regulation capabilities of composite rubber materials.
[0003] For example, high-speed rail and subway systems operate at high speeds. Without vibration damping, these vehicles offer low comfort levels, and the dynamic vibrations exert significant impact on components, easily causing damage. Furthermore, high-speed vehicles generate considerable heat; insufficient heat dissipation will affect the normal operation of components and shorten their lifespan. Therefore, key sectors of the national economy currently require rubber materials with excellent cooling or insulation properties. However, current rubber materials on the market are mainly thermally conductive rubber composites. Thermally conductive rubber only conducts heat and lacks intelligent temperature balancing capabilities. In southern summers, when temperatures are high, thermally conductive rubber absorbs heat quickly, resulting in a high internal temperature and reduced aging resistance. In northern winters, when temperatures are low, the low internal temperature of thermally conductive rubber reduces its damping performance. If rubber could be given active temperature regulation capabilities, its application in critical fields such as transportation and aerospace could be improved, expanding its application scenarios. Summary of the Invention
[0004] To address the aforementioned problems, the present invention aims to provide an intelligent temperature-controlled rubber composite material. This rubber composite material regulates heat balance through infrared emission, absorption, or dynamic heat generation, exhibiting significant temperature control and excellent damping performance, making it suitable for vibration damping applications in high-heat or extremely cold environments.
[0005] This invention is achieved through the following technical solution:
[0006] A smart temperature-controlled rubber composite material includes rubber component A and rubber component B, wherein rubber component A and rubber component B...
[0007] The mass ratio of component B is 1:1~5, where,
[0008] The adhesive component A, by weight, comprises:
[0009] 150 parts of rubber matrix
[0010] Infrared emitting filler 1 10-80 parts
[0011] Plasticizer 0.5-5 parts
[0012] 1-5 parts of vulcanizing agent;
[0013] The adhesive component B, by weight, comprises:
[0014] Rubber matrix 2 100 parts
[0015] Infrared emitting filler 2 10-100 parts
[0016] 1-5 parts plasticizer
[0017] Vulcanizing agent 0.5-2 parts.
[0018] Preferably, the rubber matrix 1 is selected from ethylene propylene diene monomer (EPDM) rubber or ethylene propylene diene monomer (EPDM) rubber, and its number average molecular weight is 50,000 to 120,000, more preferably 80,000 to 100,000.
[0019] 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 main infrared emissivity is above 0.9.
[0020] Preferably, the rubber matrix 2 is selected from ethylene propylene diene monomer (EPDM) rubber or ethylene propylene diene monomer (EPDM) rubber, and its number average molecular weight is 150,000 to 250,000, more preferably 180,000 to 200,000.
[0021] 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 micrometers; the main infrared emission band is 2.5 to 25 micrometers, and the infrared emissivity is greater than 0.6 in the 8 to 13 micrometer band.
[0022] This invention controls the mass ratio of rubber component A and rubber component B to be 1:1~5. The rubber matrix in rubber component A has a smaller molecular weight and better fluidity, which is used to efficiently disperse infrared emitting filler 1. The rubber matrix in rubber component B has a larger molecular weight and stronger shearing effect, which is used to efficiently disperse infrared emitting filler 2. Furthermore, by using rubber matrices with different molecular weights, the molecular chain motion states are also different, which helps to induce frictional heating of the molecular chains under dynamic stress in a low-temperature environment, thereby regulating the temperature.
[0023] The infrared emitting filler 1 selected in this invention has an infrared emissivity of 0.9 or higher in its main band, which mainly provides infrared emissivity. The infrared emitting filler 2 selected is white in color, and its main function is to emit infrared rays and reflect thermal radiation in high-temperature environments, and also to reduce the absorption of thermal radiation by the infrared emitting filler 1. The two fillers work together to achieve a good radiative cooling effect.
[0024] Preferably, the plasticizer is one or more of liquid EPDM and liquid polybutadiene; the vulcanizing agent is one or more of benzoyl peroxide, dicumyl peroxide, tert-butyl peroxide, or tert-butyl peroxide.
[0025] This invention also provides a method for preparing the above-mentioned intelligent temperature-controlled rubber composite material, comprising the following steps:
[0026] (1) The interface modifier is coated on the surface of infrared emitting filler 1 and infrared emitting filler 2 respectively to obtain modified infrared emitting filler 1 and modified infrared emitting filler 2;
[0027] (2) Put the rubber matrix 1 into a two-roll mill for plasticizing, then add the infrared emitting filler 1 and mix thoroughly for 5-15 minutes to obtain rubber component A;
[0028] (3) Put the rubber matrix 2 into a two-roll mill for plasticizing, then add the infrared emitting filler 2 and mix thoroughly for 20-40 minutes to obtain rubber component B;
[0029] (4) Mix rubber component A and rubber component B evenly and hot press vulcanize to obtain intelligent temperature-controlled rubber composite material.
[0030] In step (1), the interface modifier is mainly a silane coupling agent with high emissivity in the 8-13 micrometer band and containing chemically reactive groups. Preferably, the interface modifier is one or a mixture of vinyltrimethoxysilane or vinyltriethoxysilane. The mass ratio of the infrared emitting filler 1 or infrared emitting filler 2 to the interface modifier is 10-1000:1, preferably 50-200:1.
[0031] In step (1), the interface modifier is dissolved in organic solvents such as ethanol, methanol, and toluene. The mass ratio of the interface modifier to the organic solvent is 1~10:100. Under stirring conditions or high-speed mixing conditions, the interface modifier is coated onto the surface of the infrared emitting filler by spraying and then air-dried or dried at low temperature. The air-drying or drying temperature is not higher than 100°C.
[0032] Preferably, in step (4), the mixing time is 10-20 minutes; the vulcanization temperature is 160-210°C and the vulcanization time is 5-15 minutes.
[0033] This invention also provides the application of the above-mentioned intelligent temperature-controlled rubber composite material in the fields of transportation, aerospace or nuclear power, and is suitable for vibration damping applications with high heat generation or extreme cold.
[0034] Compared with the prior art, the present invention has the following advantages:
[0035] The rubber composite material provided by this invention employs a homogeneous two-phase co-vulcanization system. The two phases utilize rubber matrices of different molecular weights and different mixing times based on the characteristics of their respective fillers, facilitating uniform dispersion of the infrared-emitting filler. The two infrared-emitting fillers work synergistically, enhancing heat dissipation as needed for cooling and contributing significantly to the equilibrium temperature. The two different molecular weights and processing times result in two rubbers with different viscoelastic properties, amplifying the difference in viscoelastic properties at low temperatures and enhancing dynamic heat generation, thus helping to 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 co-crosslink and vulcanize, regulating the heat balance through infrared emission, absorption, or dynamic heat generation. The preparation method of this invention is simple and efficient, meeting the needs of industrial production. The composite rubber material prepared by this invention exhibits significant intelligent temperature control performance and good damping properties, making it suitable for vibration damping applications in high-heat or extremely cold environments. Detailed Implementation
[0036] The present invention will be further illustrated below through specific embodiments. The following embodiments are specific implementations of the present invention, but the implementation of the present invention is not limited to the following embodiments.
[0037] Unless otherwise specified, all raw materials, reagents, instruments and equipment used in this invention can be purchased from the market or prepared by existing methods. Example 1:
[0038] Step 1: Take 100g of carbon black with an average particle size of 2 micrometers and dry it at 90°C for 10 hours;
[0039] Step 2: Take 100ml of anhydrous ethanol and put it into a beaker. Add 1g of vinyltrimethoxysilane while stirring and stir for 5 minutes to obtain an ethanol solution of vinyltrimethoxysilane. While stirring, spray the ethanol solution of vinyltrimethoxysilane onto 100g of dried carbon black. After spraying, dry it in a 60°C oven to obtain infrared emitting filler - silane modified carbon black.
[0040] Step 3: Take 100g of quartz powder with an average particle size of 6.5 micrometers and dry it at 90°C for 10 hours;
[0041] Step 4: Place 100ml of anhydrous ethanol into a beaker, add 1g of vinyltrimethoxysilane while stirring, and stir for 5 minutes to obtain an ethanol solution of vinyltrimethoxysilane. While stirring, spray the vinyltrimethoxysilane ethanol solution onto 100g of dried quartz powder. After spraying, dry in a 60°C oven to obtain infrared emitting filler—silane-modified quartz powder.
[0042] Step 5: Take 50g of EPDM rubber with a molecular weight of 90,000 and put it into an open mill for plasticizing for 3 minutes. Then add 1g of liquid butadiene and 80g of silane-modified carbon black and mix for 3 minutes. After mixing, add 1g of dicumyl peroxide and continue mixing for 5 minutes to obtain rubber component A.
[0043] Step 6: Take 100g of EPDM rubber with a molecular weight of 180,000 and put it into an open mill for plasticizing for 10 minutes. Then add 2g of liquid butadiene, 100g of silane-modified quartz powder and 1g of dicumyl peroxide, and continue to mix for 15 minutes to obtain rubber component B.
[0044] Step 7: Put rubber component A and rubber component B into a two-roll mill and mix for 15 minutes. Then, hot-press and vulcanize the uniformly mixed crosslinked material at 180°C for 10 minutes. Trim the edges to obtain the intelligent temperature-controlled rubber composite material. Example 2:
[0045] Step 1: Take 100g of graphite with an average particle size of 20 micrometers and dry it at 90°C for 10 hours;
[0046] Step 2: Take 100ml of anhydrous ethanol and put it into a beaker. Add 2g of vinyltriethoxysilane while stirring and stir for 5 minutes to obtain an ethanol solution of vinyltriethoxysilane. While stirring, spray the ethanol solution of vinyltriethoxysilane onto 100g of dried graphite. After spraying, put it into a 40°C oven to dry, and obtain infrared emitting filler - silane modified graphite.
[0047] Step 3: Take 100g of precipitated silica with an average particle size of 20 micrometers and dry it at 90°C for 10 hours;
[0048] Step 4: Take 100ml of anhydrous ethanol and put it into a beaker. Add 1g of vinyltrimethoxysilane while stirring and stir for 5 minutes to obtain an ethanol solution of vinyltrimethoxysilane. While stirring, spray the ethanol solution of vinyltrimethoxysilane onto 100g of dried silica. After spraying, dry it in a 60°C oven to obtain infrared emitting filler—silane-modified silica.
[0049] Step 5: Take 50g of EPDM rubber with a molecular weight of 100,000 and put it into an open mill for plasticizing for 3 minutes. Then add 1.5g of liquid butadiene and 40g of silane-modified graphite and mix for 3 minutes. Then add 2g of dicumyl peroxide and continue mixing for 5 minutes to obtain rubber component A.
[0050] Step 6: Take 100g of EPDM rubber with a molecular weight of 200,000 and put it into a two-roll mill for plasticizing for 5 minutes. Then add 2g of liquid butadiene, 1.5g of dicumyl peroxide and 50g of silane-modified silica, and continue to mix for 15 minutes to obtain rubber component B.
[0051] Step 7: Put rubber component A and rubber component B into a two-roll mill and mix for 15 minutes. Then, hot-press and vulcanize the uniformly mixed crosslinked material at 190°C for 10 minutes. Trim the edges to obtain the intelligent temperature-controlled rubber composite material. Example 3:
[0052] Step 1: Take 100g of graphite with an average particle size of 20 micrometers and dry it at 90°C for 12 hours;
[0053] Step 2: Take 100ml of methanol and put it into a beaker. Add 2g of vinyltriethoxysilane while stirring and stir for 5 minutes to obtain an ethanol solution of vinyltriethoxysilane. While stirring, spray the ethanol solution of vinyltriethoxysilane onto 100g of dried graphite. After spraying, put it into a 40°C oven to dry and obtain infrared emitting filler - silane modified graphite.
[0054] Step 3: Take 100g of precipitated silica with an average particle size of 20 micrometers and dry it at 90°C for 10 hours;
[0055] Step 4: Place 100ml of anhydrous ethanol into a beaker, add 1g of vinyltrimethoxysilane while stirring, and stir for 5 minutes to obtain an ethanol solution of vinyltrimethoxysilane. While stirring, spray the vinyltrimethoxysilane ethanol solution onto 100g of dried silica. After spraying, dry in a 60°C oven to obtain infrared emitting filler—silane-modified silica.
[0056] Step 5: Take 50g of EPDM rubber with a molecular weight of 100,000 and put it into a two-roll mill for plasticizing for 3 minutes. Then add 1.5g of liquid butadiene and 80g of silane-modified graphite and mix for 5 minutes. Then add 2g of dicumyl peroxide and continue mixing for 5 minutes to obtain rubber component A.
[0057] Step 6: Take 100g of EPDM rubber with a molecular weight of 200,000 and put it into an open mill for plasticizing for 5 minutes. Then add 2g of liquid butadiene, 1.5g of dicumyl peroxide and 100g of silane-modified silica, and continue to mix for 15 minutes to obtain rubber component B.
[0058] Step 7: Put rubber component A and rubber component B into a two-roll mill and mix for 15 minutes. Then, hot-press and vulcanize the uniformly mixed crosslinked material at 190°C for 10 minutes. Trim the edges to obtain the intelligent temperature-controlled rubber composite material. Example 4:
[0059] Step 1: Take 100g of graphite with an average particle size of 20 micrometers and dry it at 90°C for 12 hours;
[0060] Step 2: Take 100ml of methanol and put it into a beaker. Add 2g of vinyltriethoxysilane while stirring and stir for 5 minutes to obtain an ethanol solution of vinyltriethoxysilane. While stirring, spray the ethanol solution of vinyltriethoxysilane onto 100g of dried graphite. After spraying, put it into a 40°C oven to dry and obtain infrared emitting filler - silane modified graphite.
[0061] Step 3: Take 100g of titanium dioxide with an average particle size of 0.3 micrometers and dry it at 90°C for 10 hours;
[0062] Step 4: Take 100ml of anhydrous ethanol and put it into a beaker. Add 1g of vinyltrimethoxysilane while stirring and stir for 5 minutes to obtain an ethanol solution of vinyltrimethoxysilane. While stirring, spray the ethanol solution of vinyltrimethoxysilane onto 100g of dried titanium dioxide. After spraying, dry it in a 60°C oven to obtain infrared emitting filler—silane-modified silica.
[0063] Step 5: Take 50g of EPDM rubber with a molecular weight of 90,000 and put it into a two-roll mill for plasticizing for 3 minutes. Then add 1g of liquid butadiene, 0.5g of liquid EPDM and 50g of graphite, mix for 5 minutes, then add 2g of dicumyl peroxide and continue mixing for 5 minutes to obtain rubber component A.
[0064] Step 6: Take 100g of EPDM rubber with a molecular weight of 200,000 and put it into an open mill for plasticizing for 5 minutes. Then add 1.0g of liquid butadiene, 2.0g of dicumyl peroxide and 50g of silane-modified titanium dioxide, and continue to mix for 15 minutes to obtain rubber component B.
[0065] Step 7: Put rubber component A and rubber component B into a two-roll mill and mix for 15 minutes. Then, hot-press and vulcanize the uniformly mixed crosslinked material at 190°C for 10 minutes. Trim the edges to obtain the intelligent temperature-controlled rubber composite material. Example 5:
[0066] Step 1: Take 100g of carbon nanotubes with an average particle size of 25 nanometers and dry them at 90°C for 10 hours;
[0067] Step 2: Take 50ml of toluene and put it into a beaker. Add 0.15g of vinyltrimethoxysilane while stirring. Stir for 5 minutes to obtain a toluene solution of vinyltriethoxysilane. While stirring, spray the toluene solution of vinyltriethoxysilane onto 10g of dried carbon nanotubes. After spraying, dry in a 90°C oven to obtain infrared emitting filler—silane-modified carbon nanotubes.
[0068] Step 3: Take 100g of fumed silica with an average particle size of 50 nanometers and dry it at 90°C for 10 hours;
[0069] Step 4: Place 50 ml of anhydrous ethanol into a beaker, add 0.1 g of vinyltrimethoxysilane while stirring, and stir for 5 minutes to obtain an ethanol solution of vinyltrimethoxysilane. While stirring, spray the ethanol solution of vinyltrimethoxysilane onto 10 g of dried silica. After spraying, place it in a 60°C oven to dry, obtaining infrared emitting filler—silane-modified silica.
[0070] Step 5: Take 50g of EPDM rubber with a molecular weight of 80000 and put it into a two-roll mill for plasticizing for 3 minutes. Then add 0.5g of liquid EPDM and 10g of silane-modified carbon nanotubes and mix for 5 minutes. Then add 2g of dicumyl peroxide and continue mixing for 5 minutes to obtain rubber component A.
[0071] Step 6: Take 100g of EPDM rubber with a strength of 180000 and put it into an open mill for plasticizing for 5 minutes. Then add 1.5g of liquid butadiene, 2.0g of dicumyl peroxide and 10g of silane-modified fumed silica, and continue mixing for 25 minutes to obtain rubber component B.
[0072] Step 7: Put rubber component A and rubber component B into a two-roll mill and mix for 15 minutes. Then, hot-press and vulcanize the uniformly mixed crosslinked material at 180°C for 10 minutes. Trim the edges to obtain the intelligent temperature-controlled rubber composite material.
[0073] Comparative Example 1:
[0074] Step 1: Take 100g of graphite with an average particle size of 20 micrometers and dry it at 90°C for 10 hours.
[0075] Step 2: Take 100ml of anhydrous ethanol and put it into a beaker. Add 2g of vinyltriethoxysilane while stirring and stir for 5 minutes to obtain an ethanol solution of vinyltriethoxysilane. While stirring, spray the ethanol solution of vinyltriethoxysilane onto 100g of dried graphite. After spraying, put it into a 40°C oven to dry, and obtain infrared emitting filler - silane modified graphite.
[0076] Step 3: Take 150g of EPDM rubber with a molecular weight of 180,000 and put it into an open mill for plasticizing for 5 minutes. Then add 2g of liquid butadiene and 100g of silane-modified graphite and mix for 5 minutes. Then add 2g of dicumyl peroxide and continue mixing for 15 minutes. Crosslink the mixture evenly and hot press it at 190°C for 10 minutes. Trim the edges to obtain control sample 1.
[0077] Comparative Example 2:
[0078] Step 1: Take 100g of graphite with an average particle size of 20 micrometers and dry it at 90°C for 12 hours;
[0079] Step 2: Take 100ml of methanol and put it into a beaker. Add 2g of vinyltriethoxysilane while stirring and stir for 5 minutes to obtain an ethanol solution of vinyltriethoxysilane. While stirring, spray the ethanol solution of vinyltriethoxysilane onto 100g of dried graphite. After spraying, put it into a 40°C oven to dry and obtain infrared emitting filler - silane modified graphite.
[0080] Step 3: Take 100g of precipitated silica with an average particle size of 20 micrometers and dry it at 90°C for 10 hours;
[0081] Step 4: Place 100ml of anhydrous ethanol into a beaker, add 1g of vinyltrimethoxysilane while stirring, and stir for 5 minutes to obtain an ethanol solution of vinyltrimethoxysilane. While stirring, spray the vinyltrimethoxysilane ethanol solution onto 100g of dried silica. After spraying, dry in a 60°C oven to obtain infrared emitting filler—silane-modified silica.
[0082] Step 5: Take 50g of EPDM rubber with a molecular weight of 100,000 and put it into an open mill for plasticizing for 3 minutes. Then add 1.5g of liquid butadiene and 2g of dicumyl peroxide and continue to mix for 10 minutes to obtain rubber component A.
[0083] Step 6: Take 100g of EPDM rubber with a molecular weight of 200,000 and put it into an open mill for plasticizing for 5 minutes. Then add 2g of liquid butadiene, 1.5g of dicumyl peroxide, 80g of silane-modified graphite, and 100g of silane-modified silica. Continue to mix for 15 minutes to obtain rubber component B.
[0084] Step 7: Put rubber component A and rubber component B into a two-roll mill and mix for 15 minutes. Then, hot-press and vulcanize the uniformly mixed crosslinked material at 190°C for 10 minutes. Trim the edges to obtain control sample 2.
[0085] The intelligent temperature-controlled composite rubber materials prepared in Examples 1-5 and Comparative Examples 1-2, along with their comparative samples, underwent comprehensive performance testing. The testing methods and standards were as follows: Samples were suspended or placed on insulating materials to isolate the heat conduction path. Infrared thermometers were used to measure the temperature of the environment and the samples. The intelligent temperature control capability of the samples was evaluated by comparing the difference between the ambient temperature (high-temperature environment 35℃) and the sample surface temperature. The indoor temperature of the compression heat generation test chamber was adjusted to 20℃ using an air conditioner. The compression heat generation performance of the rubber composite material was tested on a compression heat generation testing machine, and the surface temperature of the rubber composite material sample was measured using an infrared thermometer. Referring to GB / T531-1992, the hardness of the samples was measured using a Shore hardness tester; the infrared emissivity of the samples was measured using a Fourier transform infrared spectrometer; and the damping factor of the samples was obtained using dynamic mechanical analysis (DMA). The test results are shown in Table 1.
[0086] Table 1 Performance Test Table of Intelligent Temperature Control Rubber Composite Material
[0087]
[0088] As can be seen from Comparative Example 1, the single infrared emitting filler 1 can dissipate heat through both infrared radiation and thermal radiation in a high-temperature environment, resulting in the rubber composite material not being able to dissipate heat well and the temperature drop not being significant.
[0089] As can be seen from the comparison between Example 3 and Comparative Example 2, the two-phase rubber system can generate heat through friction in a low-temperature environment, thus avoiding a significant drop in temperature. However, due to the uneven dispersion of the filler, the heat generated by the molecular chain friction is not obvious, and the temperature rise is relatively low. This also indicates that there is a synergistic effect between the two-phase rubber and the two fillers.
[0090] As can be seen from the embodiments of the present invention, the present invention adopts a homogeneous two-phase co-vulcanization system, in which the matrix phase and the infrared emitting filler are cross-linked and vulcanized together. By controlling the heat balance through infrared emission, absorption or dynamic heat generation, the prepared intelligent temperature-controlled rubber composite material has obvious temperature control effect and good damping performance, and is expected to play an important role in vibration damping applications with high heat generation or extreme cold.
Claims
1. A smart temperature-controlled rubber composite material, characterized in that, It includes rubber component A and rubber component B, wherein the mass ratio of rubber component A to rubber component B is 1:1 to 5. Wherein, the rubber component A, by weight, comprises: 150 parts of rubber matrix Infrared emitting filler 1 10-80 parts Plasticizer 0.5-5 parts 1-5 parts of vulcanizing agent; The rubber matrix 1 is selected from ethylene propylene diene monomer (EPDM) rubber or ethylene propylene diene monomer (EPDM) rubber, and its number average molecular weight is 50,000 to 120,000. 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 adhesive component B, by weight, comprises: Rubber matrix 2 100 parts Infrared emitting filler 2 10-100 parts 1-5 parts plasticizer Vulcanizing agent 0.5-2 parts; The rubber matrix 2 is selected from ethylene propylene diene monomer (EPDM) rubber or ethylene propylene diene monomer (EPDM) rubber, with a number average molecular weight of 150,000 to 250,000. The infrared emitting filler 2 is one or more of quartz powder, silicon dioxide or titanium dioxide, with a particle size of 50 nanometers to 50 micrometers; The preparation method of the intelligent temperature-controlled rubber composite material includes the following steps: (1) The interface modifier is coated on the surface of infrared emitting filler 1 and infrared emitting filler 2 respectively to obtain modified infrared emitting filler 1 and modified infrared emitting filler 2; (2) Put the rubber matrix 1 into a two-roll mill for plasticizing, then add the infrared emitting filler 1 and mix thoroughly for 5-15 minutes to obtain rubber component A; (3) Put the rubber matrix 2 into a two-roll mill for plasticizing, then add the infrared emitting filler 2 and mix thoroughly for 20-40 minutes to obtain rubber component B; (4) Mix rubber component A and rubber component B evenly and hot press vulcanize to obtain intelligent temperature-controlled rubber composite material.
2. The intelligent temperature-controlled rubber composite material according to claim 1, characterized in that, The number average molecular weight of the rubber matrix 1 is 80,000 to 100,000.
3. The intelligent temperature-controlled rubber composite material according to claim 1, characterized in that, The number average molecular weight of the rubber matrix 2 is 180,000 to 200,000.
4. The intelligent temperature-controlled rubber composite material according to claim 1, characterized in that, The plasticizer is one or more of liquid EPDM and liquid polybutadiene; the vulcanizing agent is one or more of benzoyl peroxide, dicumyl peroxide, tert-butyl peroxide, or tert-butyl peroxide-2-ethylhexanoate.
5. The method for preparing the intelligent temperature-controlled rubber composite material according to any one of claims 1-4, characterized in that, Includes the following steps: (1) The interface modifier is coated on the surface of infrared emitting filler 1 and infrared emitting filler 2 respectively to obtain modified infrared emitting filler 1 and modified infrared emitting filler 2; (2) Put the rubber matrix 1 into a two-roll mill for plasticizing, then add the infrared emitting filler 1 and mix thoroughly for 5-15 minutes to obtain rubber component A; (3) Put the rubber matrix 2 into a two-roll mill for plasticizing, then add the infrared emitting filler 2 and mix thoroughly for 20-40 minutes to obtain rubber component B; (4) Mix rubber component A and rubber component B evenly and hot press vulcanize to obtain intelligent temperature-controlled rubber composite material.
6. The method for preparing the intelligent temperature-controlled rubber composite material according to claim 5, characterized in that, In step (1), the interface modifier is one or a mixture of two of vinyltrimethoxysilane or vinyltriethoxysilane; the mass ratio of the infrared emitting filler 1 or infrared emitting filler 2 to the interface modifier is 10~1000:
1.
7. The method for preparing the intelligent temperature-controlled rubber composite material according to claim 6, characterized in that, The mass ratio of the infrared emitting filler 1 or infrared emitting filler 2 to the interface modifier is 50~200:
1.
8. The method for preparing the intelligent temperature-controlled rubber composite material according to claim 5, characterized in that, In step (4), the mixing time is 10-20 minutes; the vulcanization temperature is 160-210°C and the vulcanization time is 5-15 minutes.
9. The application of the intelligent temperature-controlled rubber composite material according to any one of claims 1-4 in the fields of transportation, aerospace, or nuclear power, characterized in that, Used for vibration damping applications in high-heat or extremely cold environments.