CN114055818A - Rubber-based flexible composite material and preparation method thereof - Google Patents
Rubber-based flexible composite material and preparation method thereof Download PDFInfo
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- CN114055818A CN114055818A CN202111356103.8A CN202111356103A CN114055818A CN 114055818 A CN114055818 A CN 114055818A CN 202111356103 A CN202111356103 A CN 202111356103A CN 114055818 A CN114055818 A CN 114055818A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D7/00—Producing flat articles, e.g. films or sheets
- B29D7/01—Films or sheets
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/221—Oxides; Hydroxides of metals of rare earth metal
- C08K2003/2213—Oxides; Hydroxides of metals of rare earth metal of cerium
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Abstract
The invention provides a rubber-based flexible composite material and a preparation method thereof, belonging to the technical field of rubber composite materials. According to the invention, the carbon fiber fabric is laid on the surface of the rubber raw sheet, and the carbon fiber fabric can still maintain the framework at high temperature, so that a carbonization layer formed by ablation of the base material can be fixed, the adhesive force of the carbonization layer is obviously improved, and the ablation and scouring resistance of the carbonization layer is enhanced, so that the ablation resistance of the composite material is improved.
Description
Technical Field
The invention relates to the technical field of rubber composite materials, in particular to a rubber-based flexible composite material and a preparation method thereof.
Background
The rubber has the advantages of light weight, low density, aging resistance, excellent mechanical property, large filling coefficient and the like, and is an ideal material for the heat insulating layer of the solid rocket engine. The rubbers commonly used as the heat insulating layer are: ethylene propylene diene monomer, nitrile rubber, chloroprene rubber, silicone rubber, polyphosphazene rubber and the like. However, these rubbers have the disadvantage of poor ablation resistance, and it is often necessary to add organic or inorganic fibers to the formulation to improve the ablation resistance. The fiber filler can keep the original structure under the high-temperature environment, plays a role in supporting the rubber matrix and improves the ablation resistance of the rubber. However, after the conventional chopped fiber reinforced rubber heat-insulating material is washed by high-energy particles and gas, the carbon-fixing effect of chopped fibers on a carbon layer is limited, and further improvement of ablation resistance is hindered.
Disclosure of Invention
The invention aims to provide a rubber-based flexible composite material and a preparation method thereof, which can improve the scouring resistance of EPDM (ethylene-propylene-diene monomer), enhance the stability of a carbon layer and further remarkably improve the ablation resistance of the composite material.
In order to achieve the above object, the present invention provides the following technical solutions:
the invention provides a preparation method of a rubber-based flexible composite material, which comprises the following steps:
mixing rubber to obtain a rubber raw sheet;
laying carbon fiber fabric on the surface of the rubber raw sheet, and pressing to obtain a composite sheet;
and paving the composite sheet in a mold, and vulcanizing to obtain the rubber-based flexible composite material.
Preferably, cerium oxide is added during the mixing process.
Preferably, the mass ratio of the rubber to the cerium oxide is 100: (0.5-5).
Preferably, the carbon fiber fabric comprises a plain carbon cloth.
Preferably, the thickness of the carbon fiber fabric is 0.1-0.2 mm, and the surface density is 80-120 g/m2。
Preferably, the thickness of the composite sheet is 1.1-1.5 mm.
Preferably, the vulcanization temperature is 100-200 ℃, the pressure is 5-25 MPa, and the heat preservation and pressure maintaining time is 30-120 min.
Preferably, the pressure of the pressing is 3-20 MPa, the temperature is 80-180 ℃, and the heat preservation and pressure maintaining time is 5-45 min.
The invention provides a rubber-based flexible composite material prepared by the preparation method in the scheme, which comprises a carbon fiber fabric and a rubber raw sheet which are laminated.
Preferably, the rubber green sheet contains cerium oxide.
The invention provides a preparation method of a rubber-based flexible composite material, which comprises the following steps: mixing rubber to obtain a rubber raw sheet; laying carbon fiber fabric on the surface of the rubber raw sheet, and pressing to obtain a composite sheet; and paving the composite sheet in a mold, and vulcanizing to obtain the rubber-based flexible composite material.
In addition, the carbon fiber fabric is laid on the surface of the rubber raw sheet, and the carbon fiber fabric can still maintain the framework at high temperature, so that a carbonization layer formed by ablation of the base material can be fixed, the adhesive force of the carbonization layer is obviously improved, and the ablation and scouring resistance of the carbonization layer is enhanced, so that the ablation resistance of the composite material is improved.
Furthermore, cerium oxide is added into the rubber, so that a more compact carbonized layer is formed in the rubber in the ablation process, and the structure of the carbonized layer is more stable, and the ablation resistance of the composite material is further improved.
Detailed Description
The invention provides a preparation method of a rubber-based flexible composite material, which comprises the following steps:
mixing rubber to obtain a rubber raw sheet;
laying carbon fiber fabric on the surface of the rubber raw sheet, and pressing to obtain a composite sheet;
and paving the composite sheet in a mold, and vulcanizing to obtain the rubber-based flexible composite material.
In the present invention, the starting materials used are all commercially available products well known in the art, unless otherwise specified.
The invention mixes the rubber to obtain the rubber green sheet.
The rubber of the invention has no special requirement on the specific type, and the rubber well known in the field can be any rubber, specifically ethylene propylene diene monomer rubber, nitrile rubber, chloroprene rubber, silicon rubber or polyphosphazene rubber. In the invention, cerium oxide is preferably added in the mixing process. In the present invention, the particle size of the cerium oxide is preferably 1 to 5 μm, and more preferably 2 to 4 μm. According to the invention, cerium oxide is added into rubber, a more compact carbonized layer is formed in the ablation process, and the structure of the carbonized layer is more stable, so that the ablation resistance of the composite material can be further improved.
In the invention, the mass ratio of the ethylene propylene diene monomer mixed glue to the cerium oxide is preferably 100: (0.5 to 5), more preferably 100: (1-4), more preferably 100: (2-3). The invention has no special requirements on the mixing process, and the mixing process well known in the field can be adopted. In the examples of the present invention, when cerium oxide is added, the mixing is: adding rubber into a mixing roll, preheating for 5-10 minutes, tapping for 3-10 minutes after two triangular bags and a rubber film are wound after preheating is finished, adding cerium oxide, tapping for 5-15 minutes, winding 2 rubber bags and rubber to roll the rubber after tapping is finished, and adjusting the roll distance to obtain a rubber green sheet. In the present invention, the thickness of the rubber green sheet is preferably 1.1 to 1.5mm, more preferably 1.2 to 1.4 mm. The invention has no special requirement on the preheating temperature in the mixing process, and the well-known mixing preheating temperature of the ethylene propylene diene monomer rubber compound is adopted.
After the rubber green sheet is obtained, the carbon fiber fabric is laid on the surface of the rubber green sheet, and the composite sheet is obtained after pressing.
In the present invention, the carbon fiber fabric preferably includes a plain carbon cloth; the thickness of the plain carbon cloth is preferably 0.1-0.2 mm, and the surface density is preferably 80-120 g/m2。
In the invention, the carbon fiber fabric is preferably laid on one side surface of the rubber green sheet. Before laying the carbon fiber fabric, the carbon fiber fabric is preferably dried by the method. In the present invention, the temperature of the drying is preferably 200 ℃, and the time of the drying is preferably 30 min.
In the present invention, the length and width dimensions of the carbon fiber fabric are preferably the same as those of the rubber green sheet. In the invention, the pressure of the pressing is preferably 3-20 MPa, more preferably 5-18 MPa, and further preferably 10-15 MPa; the temperature is preferably 80-180 ℃, more preferably 100-160 ℃, and further preferably 120-150 ℃; the heat preservation and pressure maintaining time is preferably 5-45 min, more preferably 10-40 min, and further preferably 20-30 min.
In the invention, gaskets are preferably used at four corners of a pressing plate of the press during pressing so as to ensure that a composite sheet with a target thickness is obtained; the thickness of the gasket is equal to the thickness of the composite sheet. The thickness of the composite sheet is not particularly critical to the present invention and may be any thickness known in the art. In an embodiment of the invention, the composite sheet has a thickness of 1 mm. In the present invention, the press-fitting is preferably performed in a press vulcanizer.
After the composite sheet is obtained, the composite sheet is paved in a mold and vulcanized to obtain the rubber-based flexible composite material.
The composite sheet is preferably laid to a specified thickness, and the carbon fiber fabric and the rubber green sheet are preferably distributed in an alternating manner in the laying process. In the laying process, the laying angle of the composite sheet is preferably selected according to actual requirements, and specifically, the angle can be 0 degree with the mould or 30 degrees with the mould. After the laying is finished, the die is preferably closed and put into a flat vulcanizing machine for vulcanization. The invention preferably preheats the mould with the composite sheet on a flat vulcanizing machine, and then starts vulcanizing. In the present invention, the preheating temperature is preferably the same as the vulcanizing temperature, the preheating pressure is preferably lower than the vulcanizing pressure, and the preheating time is preferably set to stabilize the vulcanizing press temperature. In the invention, the vulcanization temperature is preferably 100-200 ℃, more preferably 120-180 ℃, and further preferably 140-160 ℃; the pressure is preferably 5-25 MPa, more preferably 10-20 MPa, and further preferably 12-17 MPa; the heat preservation and pressure maintaining time is preferably 30-120 min, more preferably 40-100 min, and further preferably 60-90 min. In the vulcanization process, linear macromolecular chains of the rubber are changed into a three-dimensional network structure through chemical crosslinking, so that various physical properties are endowed to the rubber. After the vulcanization is finished, the flexible composite material is preferably taken down from the mold for demolding when the pressure is maintained and the temperature is reduced to normal temperature, so that the flexible composite material is obtained.
The invention provides a rubber-based flexible composite material prepared by the scheme, which comprises a carbon fiber fabric and a rubber raw sheet which are laminated. In the present invention, the rubber green sheet preferably contains cerium oxide.
The rubber-based flexible composite material comprises a carbon fiber fabric, wherein the carbon fiber fabric can still keep the framework at high temperature, so that a carbonization layer formed by ablation of a base material can be fixed, the adhesive force of the carbonization layer is obviously improved, and the ablation and erosion resistance of the carbonization layer is enhanced, so that the ablation resistance of the composite material is improved. In addition, the cerium oxide is added, so that a more compact carbonized layer is formed in the ablation process of the rubber, the structure of the carbonized layer is more stable, and the ablation resistance of the composite material can be further improved.
The rubber-based flexible composite material and the preparation method thereof provided by the present invention will be described in detail with reference to the following examples, which should not be construed as limiting the scope of the present invention.
The following examples use the following starting materials:
the rubber is ethylene propylene diene rubber compound with the model number of 46-3A; micron-sized CeO2The particle size is 1-5 um; the plain carbon cloth TG300-1K has a thickness of 0.1mm and an area density of 80g/m2。
Example 1
Adding ethylene propylene diene monomer rubber compound into a mixing roll, preheating for 8 minutes, after preheating is finished, drawing two triangular bags and a rubber film, cutting rubber for 5 minutes, adding cerium oxide, wherein the mass ratio of the ethylene propylene diene monomer rubber compound to the cerium oxide is 100: 1.5, tapping for 15 minutes, punching 2 triangular bags and a rubber film after tapping is finished, taking off the rubber, adjusting the roller spacing to obtain a rubber green sheet with the thickness of 1.3 mm.
And (3) placing the plain carbon cloth into an air drying oven to dry for 30min at 200 ℃, and cutting the carbon cloth to be consistent with the rubber green sheet after drying.
The rubber green sheets and the carbon cloth are pressed together through a flat vulcanizing machine, the pressure is set to be 5MPa, the temperature is set to be 80 ℃, the pressing time is 5min, gaskets with the thickness of 1mm are needed to be used during pressing, and the four corners of a pressing plate of the pressing machine are padded to ensure that the rubber green sheets and the carbon cloth are pressed to the desired thickness, so that a composite sheet is obtained, wherein the thickness is 1 mm.
And then cutting the laminated composite sheet into long sheets of 120mm multiplied by 20mm multiplied by 1mm by using a sheet punching machine and a designed mould, laying the cut long sheets into the mould at 0 DEG after cutting, paying attention to the alternating distribution of the carbon cloth and the rubber green sheets, and carrying out a vulcanization process after laying.
And (3) putting the placed die assembly into a flat vulcanizing machine, preheating at the pressure of 3MPa and the temperature of 140 ℃ for 40min, keeping the pressure of 5MPa and the temperature constant after preheating, taking down the die and demoulding when the temperature is reduced to normal temperature after vulcanization, thus obtaining the flexible composite flat plate with the thickness of 10 mm.
Example 2
Adding ethylene propylene diene monomer rubber compound into a mixing roll, preheating for 8 minutes, after preheating is finished, drawing two triangular bags and a rubber film, cutting rubber for 5 minutes, adding cerium oxide, wherein the mass ratio of the ethylene propylene diene monomer rubber compound to the cerium oxide is 100: 1.5, tapping for 15 minutes, punching 2 triangular bags and a rubber film after tapping is finished, taking off the rubber, adjusting the roller spacing to obtain a rubber green sheet with the thickness of 1.3 mm.
And (3) placing the plain carbon cloth into an air drying oven to dry for 30min at 200 ℃, and cutting the carbon cloth to be consistent with the rubber green sheet after drying.
The rubber green sheets and the carbon cloth are pressed together through a flat vulcanizing machine, the pressure is set to be 5MPa, the temperature is set to be 80 ℃, the pressing time is 5min, gaskets with the thickness of 1mm are needed to be used during pressing, and the four corners of a pressing plate of the pressing machine are padded to ensure that the rubber green sheets and the carbon cloth are pressed to the desired thickness, so that a composite sheet is obtained, wherein the thickness is 1 mm.
And then cutting the laminated composite sheet into long sheets of 120mm multiplied by 20mm multiplied by 1mm by using a sheet punching machine and a designed mould, obliquely spreading the cut long sheets into the mould at 30 degrees after cutting, paying attention to the alternating distribution of the carbon cloth and the rubber green sheets, and carrying out a vulcanization process after mould filling.
And (3) putting the mold after mold filling into a flat vulcanizing machine, preheating at 140 ℃ under the pressure of 5MPa for 40min when the temperature of the vulcanizing machine is stable, vulcanizing after preheating, keeping the pressure at 8MPa and keeping the temperature unchanged, and taking down the mold for demolding when the pressure is maintained and the temperature is reduced to normal temperature after vulcanizing is finished to obtain a flexible composite flat plate with the thickness of 10 mm.
Example 3
Adding ethylene propylene diene monomer rubber compound into a mixing roll, preheating for 8 minutes, after preheating is finished, drawing two triangular bags and a rubber film, cutting rubber for 5 minutes, adding cerium oxide, wherein the mass ratio of the ethylene propylene diene monomer rubber compound to the cerium oxide is 100: 1.5, tapping for 15 minutes, punching 2 triangular bags and a rubber film after tapping is finished, taking off the rubber, adjusting the roller spacing to obtain a rubber compound green sheet with the thickness of 1.3 mm.
And (3) placing the plain carbon cloth into an air drying oven to dry for 30min at 200 ℃, and cutting the carbon cloth to be consistent with the rubber compound green sheet after drying.
The rubber compound green sheets and the carbon cloth are pressed together through a flat vulcanizing machine, the pressure is set to be 5MPa, the temperature is set to be 80 ℃, the pressing time is 5min, gaskets with the thickness of 1mm are needed to be used during pressing, and the four corners of a press plate are padded to ensure that the rubber green sheets and the carbon cloth are pressed to the desired thickness, so that composite sheets are obtained, wherein the thickness is 1 mm.
And then cutting the laminated composite sheet into long sheets of 120mm multiplied by 20mm multiplied by 1mm by using a sheet punching machine and a designed mould, obliquely spreading the cut long sheets into the mould at 30 degrees after cutting, paying attention to the alternating distribution of the carbon cloth and the rubber green sheets, and carrying out a vulcanization process after mould filling.
And (3) putting the mold after mold filling into a flat vulcanizing machine, preheating at 160 ℃ under the pressure of 5MPa for 55min when the temperature of the vulcanizing machine is stable, vulcanizing at 8MPa after preheating, and taking down the mold for demolding when the pressure is kept reduced to normal temperature after vulcanizing to obtain the flexible composite flat plate with the thickness of 10 mm.
Example 4
The difference from example 2 is that no cerium oxide is used. The preparation method comprises the following specific steps:
adding the ethylene-propylene-diene monomer rubber compound into a roller of a mixing mill, preheating for 8 minutes, punching two triangular bags and a rubber film after preheating is finished, tapping for 20 minutes, punching 2 triangular bags and a rubber film after tapping is finished, taking off the rubber, and adjusting the roller distance to obtain a rubber compound green sheet with the thickness of 1.3 mm.
And (3) placing the plain carbon cloth into an air drying oven to dry for 30min at 200 ℃, and cutting the carbon cloth to be consistent with the rubber compound green sheet after drying.
And pressing the rubber compound green sheets and the carbon cloth together through a flat vulcanizing machine, setting the pressure to be 5MPa, setting the temperature to be 80 ℃, setting the pressing time to be 5min, using gaskets with the thickness of 1mm during pressing, and cushioning four corners of a press plate of the press to ensure that the rubber compound green sheets and the carbon cloth are pressed to the desired thickness to obtain the composite sheets with the thickness of 1 mm.
And then cutting the laminated composite sheet into long sheets of 120mm multiplied by 20mm multiplied by 1mm by using a sheet punching machine and a designed mould, obliquely spreading the cut long sheets into the mould at 30 degrees after cutting, paying attention to the alternating distribution of the carbon cloth and the rubber green sheets, and carrying out a vulcanization process after mould filling.
And (3) putting the mold after mold filling into a flat vulcanizing machine, preheating at 140 ℃ under the pressure of 5MPa for 40min when the temperature of the vulcanizing machine is stable, vulcanizing after preheating, keeping the pressure at 8MPa and keeping the temperature unchanged, and taking down the mold for demolding when the pressure is maintained and the temperature is reduced to normal temperature after vulcanizing is finished to obtain the flexible composite flat plate.
Comparative example 1
The difference from example 2 is that plain carbon cloth was not used. The preparation method comprises the following specific steps:
adding ethylene propylene diene monomer rubber compound into a mixing roll, preheating for 8 minutes, after preheating is finished, drawing two triangular bags and a rubber film, cutting rubber for 5 minutes, adding cerium oxide, wherein the mass ratio of the ethylene propylene diene monomer rubber compound to the cerium oxide is 100: 1.5, tapping for 15 minutes, punching 2 triangular bags and a rubber film after tapping is finished, taking off the rubber, adjusting the roller spacing to obtain a rubber green sheet with the thickness of 1.3 mm.
Pressing the rubber green sheets to be 1mm thick through a flat vulcanizing machine, setting the pressure to be 5MPa, setting the temperature to be 80 ℃, setting the pressing time to be 5min, using gaskets with the thickness of 1mm during pressing, and cushioning four corners of pressing plates of the pressing machine to ensure that the rubber green sheets and the carbon cloth are pressed to be the desired thickness to obtain composite sheets with the thickness of 1 mm.
And then cutting the laminated composite sheet into long sheets of 120mm multiplied by 20mm multiplied by 1mm by using a sheet punching machine and a designed die, obliquely laying the cut long sheets into the die at 30 degrees after the cutting is finished, and carrying out a vulcanization process after the die filling is finished.
And (3) putting the mold after mold filling into a flat vulcanizing machine, preheating at 140 ℃ under the pressure of 5MPa for 40min when the temperature of the vulcanizing machine is stable, vulcanizing after preheating, keeping the pressure at 8MPa and keeping the temperature unchanged, and taking down the mold for demolding when the pressure is maintained and the temperature is reduced to normal temperature after vulcanizing is finished to obtain the flexible rubber flat plate.
Comparative example 2
The difference from the example 2 is that no cerium oxide and plain carbon cloth are used, and the specific preparation steps are as follows:
adding the ethylene-propylene-diene monomer rubber compound into a roller of a mixing mill, preheating for 8 minutes, punching two triangular bags and a rubber film after preheating is finished, tapping for 20 minutes, punching 2 triangular bags and a rubber film after tapping is finished, taking off the rubber, and adjusting the roller distance to obtain a rubber compound green sheet with the thickness of 1.3 mm.
The method comprises the following steps of pressing the rubber compound raw sheet to be 1mm thick through a flat vulcanizing machine, setting the pressure to be 5MPa, setting the temperature to be 80 ℃, setting the pressing time to be 5min, using a gasket with the thickness of 1mm during pressing, and cushioning four corners of a press plate to ensure that the rubber raw sheet and carbon cloth are pressed to be the desired thickness to obtain a composite sheet with the thickness of 1 mm.
And then cutting the laminated composite sheet into long sheets of 120mm multiplied by 20mm multiplied by 1mm by using a sheet punching machine and a designed die, obliquely laying the cut long sheets into the die at 30 degrees after the cutting is finished, and carrying out a vulcanization process after the die filling and the die placing are finished.
And (3) putting the mold after mold filling into a flat vulcanizing machine, preheating at 140 ℃ under the pressure of 5MPa for 40min when the temperature of the vulcanizing machine is stable, vulcanizing at 8MPa after preheating, and taking down the mold for demolding when the pressure drop temperature is kept to normal temperature after vulcanizing to obtain the flexible rubber flat plate.
And (3) performance testing:
the products prepared in the examples and comparative examples were tested for oxy-acetylene ablation by reference to GJB 323A-1996, 5 samples were taken from each example and averaged as shown in Table 1:
TABLE 1 line ablation Rate (mm/s) of examples 1 to 4 and comparative examples 1 to 2
| Test piece number | Example 1 | Example 2 | Example 3 | Example 4 | Comparative example 1 | Comparative example 2 |
| 1 | 0.116 | 0.098 | 0.115 | 0.124 | 0.136 | 0.128 |
| 2 | 0.103 | 0.103 | 0.095 | 0.107 | 0.117 | 0.139 |
| 3 | 0.121 | 0.080 | 0.090 | 0.109 | 0.154 | 0.155 |
| 4 | 0.098 | 0.088 | 0.112 | 0.095 | 0.138 | 0.158 |
| 5 | 0.105 | 0.108 | 0.123 | 0.098 | 0.142 | 0.135 |
| Mean value | 0.1086 | 0.0954 | 0.107 | 0.1066 | 0.1374 | 0.143 |
As can be seen from the results in table 1, the carbon fiber fabric laid on the surface of the rubber layer of the present invention improves the anti-scouring ability of EPDM, enhances the stability of the carbon layer, and further significantly improves the ablation resistance of the composite material. In addition, the results of example 2, example 4 and comparative example 2 show that the ablation resistance of the composite material can be further improved by adding cerium oxide according to the present invention.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (10)
1. The preparation method of the rubber-based flexible composite material is characterized by comprising the following steps of:
mixing rubber to obtain a rubber raw sheet;
laying carbon fiber fabric on the surface of the rubber raw sheet, and pressing to obtain a composite sheet;
and paving the composite sheet in a mold, and vulcanizing to obtain the rubber-based flexible composite material.
2. The method according to claim 1, wherein cerium oxide is added during the kneading.
3. The method according to claim 2, wherein the mass ratio of the rubber to the cerium oxide is 100: (0.5-5).
4. The method of manufacturing according to claim 1, wherein the carbon fiber fabric comprises a plain carbon cloth.
5. The method according to claim 4, wherein the carbon fiber fabric has a thickness of 0.1 to 0.2mm and an areal density of 80 to 120g/m2。
6. The manufacturing method according to claim 1, wherein the thickness of the composite sheet is 1.1 to 1.5 mm.
7. The method according to claim 1, wherein the vulcanization is carried out at a temperature of 100 to 200 ℃, a pressure of 5 to 25MPa, and a holding time of 30 to 120 min.
8. The preparation method according to claim 1, wherein the pressure of the pressing is 3 to 20MPa, the temperature is 80 to 180 ℃, and the holding time is 5 to 45 min.
9. The rubber-based flexible composite material prepared by the preparation method of any one of claims 1 to 8, which comprises a carbon fiber fabric and a rubber green sheet which are laminated.
10. The rubber-based flexible composite of claim 9, wherein the rubber green sheet contains cerium oxide.
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| CN114437382A (en) * | 2022-03-08 | 2022-05-06 | 内蒙古工业大学 | Thermal protection material, adiabatic expansion section and preparation method thereof |
| CN114571744A (en) * | 2022-04-21 | 2022-06-03 | 内蒙古工业大学 | Fiber preform reinforced resin rubber ternary composite material and preparation method and application thereof |
| CN114410019B (en) * | 2022-03-08 | 2023-12-26 | 内蒙古工业大学 | Carbon fiber/resin/rubber ternary composite material and preparation method and application thereof |
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