CN110256795B - Olefinic carbon damping material with high fireproof performance as well as preparation method and application thereof - Google Patents

Olefinic carbon damping material with high fireproof performance as well as preparation method and application thereof Download PDF

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CN110256795B
CN110256795B CN201910409534.2A CN201910409534A CN110256795B CN 110256795 B CN110256795 B CN 110256795B CN 201910409534 A CN201910409534 A CN 201910409534A CN 110256795 B CN110256795 B CN 110256795B
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graphene oxide
damping material
flame retardant
olefinic carbon
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张�诚
张同喜
吕晓静
孙峰
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Zhejiang University of Technology ZJUT
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Abstract

The invention discloses an olefinic carbon damping material with high fireproof performance, and a preparation method and application thereof, wherein the olefinic carbon damping material with high fireproof performance comprises the following components in parts by weight: 10-12 parts of acrylate rubber, 2-3 parts of antioxidant, 2-4 parts of graphene oxide or modified graphene oxide, 20-22 parts of mica, 20-22 parts of vermiculite powder, 5-6 parts of calcium carbonate, 1-2 parts of bentonite, 5-6 parts of flame retardant A and 4-6 parts of flame retardant B. According to the invention, the graphene is added into the damping sheet layer to form the nano-intercalation damping unit, and the polymer damping unit is strongly hinged with the sheet layer between the layered inorganic nano-material layers, so that the friction and heat transfer between the sheet layers are enhanced, and the damping effect is improved. The carbon layer is strengthened by the generated inorganic acid through the synergistic flame retardant effect of the graphene oxide and the flame retardant and the synergistic inhibition effect on the aspects of an acid source, a carbon source and a gas source, the smoke density is effectively reduced through the effect of isolating oxygen and diluting and releasing oxygen concentration by generating a large amount of non-combustible gas, and the alkene carbon damping material has the condition of high fireproof performance.

Description

Olefinic carbon damping material with high fireproof performance as well as preparation method and application thereof
(I) technical field
The invention relates to a high-fire-resistance alkene-carbon damping material and a preparation method thereof, wherein the damping material is mainly applied to a shock-absorbing noise-reducing material on a high-speed rail.
(II) background of the invention
In the development of the electrified railway for 60 years in China and the intelligent traction power supply technology forum, the high speed pursuit is considered by the qianqingquan to be one of the permanent subjects of the rail transit development. In the high-speed rail era representing speed and efficiency, the Chinese high-speed rail is always in high precision quality as a business card of Chinese economy going to the world. However, as people demand high-speed, high-efficiency and automatic high-speed rail equipment, the problems of vibration, noise and fatigue fracture caused by the high-speed, high-efficiency and automatic high-speed rail equipment are more and more prominent. The vibration and the noise limit the improvement of the performance of the high-speed rail mechanical equipment, seriously damage the stability and the reliability of the operation of the high-speed rail mechanical equipment and harm the physical and psychological health of people. Therefore, vibration reduction, noise reduction and improvement of human-machine working and living environments are problems to be solved urgently.
At present, damping materials commonly used at home and abroad can be divided into two categories, namely rubber and asphalt, the glass transition temperature of rubber products is mostly below room temperature, the vibration absorption peak is far away from the commonly used use temperature, and the optimal vibration absorption effect cannot be achieved; although the asphalt products are low in price, the vibration and noise reduction effects are poor, and the mechanical strength is not high. Moreover, the high polymer can generate a large amount of dense smoke in the combustion process, and the combustion of some high polymers can also generate a large amount of toxic gas, and according to statistics, 80% of death accidents in the fire are caused by smoke and toxic gas. However, the flame-retardant and fireproof performance of the damping material is not taken into consideration all the time, most damping materials are only based on the research of oxygen index, the influence of the index on the fireproof performance is very little in the practical application, and the application of the damping material on high-speed rails is more strict.
Disclosure of the invention
The invention provides an olefinic carbon damping material with high fireproof performance and a preparation method thereof. Meanwhile, the parent body forming the aromatic soot is firmly bonded in the metal-aromatic compound through molybdenum flame retardance, so that the smoke quantity is reduced; the flame retardant performance improvement such as flame extension inhibition and the like is carried out on the alkene carbon damping material by adopting a compound flame retardant from three flame retardant ways of an acid source, a gas source and a carbon source.
According to the invention, Modified Graphene Oxide (MGO) is added into a damping sheet layer to form a nano-intercalation damping unit, and the damping material is a multi-constraint damping type structure based on polymer melt nano-intercalation and fractal technology. The developed damping material consists of a polymer and m laminated composites, wherein the laminated composites are formed by arranging n nano-constrained damping structures; the nanometer constrained damping structure is prepared by inserting a polymer damping unit into the interlayer of a layered inorganic nanometer material by an intercalation method. The whole damping material structure is composed of a plurality of layers, and each layer has similarity in structure, and the later layer is the miniature of the previous layer. The polymer damping units are strongly hinged with the laminas between the layers of the layered inorganic nano material, when the laminated inorganic nano material is subjected to external force, the laminas and the polymer are converted into heat due to shearing and friction, the surface tension of the modified graphene oxide is reduced, the agglomeration is reduced, the modified graphene oxide has good dispersibility in a matrix, and the damping effect of the material is greatly improved. The structural schematic diagram of the polymer-based damping material with the multi-constrained modified graphene oxide nano damping type structure is shown in fig. 1.
In the aspect of fire resistance, the generation of smoke of the alkene carbon damping material is firstly inhibited by the molybdenum series flame retardants, the aromatic and polyene in general polymers have larger smoke generation tendency, and the molybdenum series flame retardants can firmly bond the parent body forming aromatic soot in the metal-aromatic compound to reduce the generation of smoke. Meanwhile, the molybdenum trioxide flame retardant in the molybdenum series has good synergistic effect with the zinc borate, can be compounded for use to obtain better smoke suppression effect, and can also reduce the cost because the molecular formula of the zinc borate is 2ZnO 3B2O3·3.5H2O, which starts to drive off crystal water at 300 ℃ and acts as an endothermic cooling, Zn in ZB is about 38% by weight of ZnO or Zn (OH)2The zinc borate enters a gas phase to dilute combustible gas, so that the combustion rate of the combustible gas is reduced, and the flame retardance of the combustible gas is further increased, but the zinc borate belongs to gas-phase flame retardance, the reduction of smoke density is limited, and the smoke density is reduced by the synergistic effect of promoting the molybdenum trioxide condensed phase flame retardance. After solving the problem of smoke suppression, the problem of flame retardance of the olefinic carbon damping material needs to be considered in the molybdenum flame retardant, and experiments show that the ammonium polyphosphate app modified by the alkyl siloxane is easy to form compact due to high content of N, P and other elementsThe carbon layer has a protective effect on the interior of the damping material, can effectively reduce the flame extension rate, and greatly improves the flame retardant property. The modified alkyl siloxane has P-O-Si structure in the molecular structure, hydrophobic and moistureproof effect, certain coupling effect, raised compatibility with polyolefin material and excellent fireproof effect.
The main research scheme of the invention is as follows:
the olefinic carbon damping material with high fireproof performance is characterized in that: the composition comprises the following components in percentage by mass: 10-12 parts of acrylate rubber, 2-3 parts of antioxidant, 2-4 parts of Graphene Oxide (GO) or Modified Graphene Oxide (MGO), 20-22 parts of mica, 20-22 parts of vermiculite powder, 5-6 parts of calcium carbonate, 1-2 parts of bentonite, 5-6 parts of flame retardant A and 4-6 parts of flame retardant B.
Further, the acrylate rubber is an epoxy type AR54 rubber.
Further, the antioxidant is oligomeric phenol 616, namely p-cresol and dicyclopentadiene butylated product.
Further, the flame retardant A is a product prepared by compounding molybdenum trioxide and zinc borate in a mass ratio of 4: 1.
Further, the flame retardant B is a product obtained by compounding ammonium polyphosphate and polyphosphoric acid amide according to the mass ratio of 3: 1.
The olefinic carbon damping material with high fireproof performance is prepared according to the following method:
(1) weighing 10-12 parts of acrylate rubber, mixing for 2-3min in a two-roll mill at the temperature of 120-130 ℃, after the acrylate rubber is uniformly spread, sequentially adding 2-4 parts of Graphene Oxide (GO) or Modified Graphene Oxide (MGO), 2-3 parts of antioxidant 616, 20-22 parts of mica, 20-22 parts of vermiculite powder, 5-6 parts of calcium carbonate, 1-2 parts of bentonite, 5-6 parts of flame retardant A and 4-6 parts of flame retardant B, and carrying out open milling for 10-12min for blanking;
(2) and (2) then placing the leftover material obtained in the step (1) into a mold, protecting the surface with a polytetrafluoroethylene film, placing the mold in a full-automatic plate vulcanizing machine at the temperature of 120-12 MPa, preheating for 3-5min, fully pressing for 5-8min, discharging gas for 3-5 times, cooling for 2-3min, and taking out the formed damping sheet from the mold to cool to room temperature to obtain the olefinic carbon damping material with high fireproof performance.
Further, the graphene oxide provided by the invention is prepared according to the following method:
weighing 1-2g of graphene, adding the graphene into 12-15ml of concentrated sulfuric acid solution with the mass fraction of 98%, sequentially adding 3-5g of potassium persulfate and 3-5g of phosphorus pentoxide into the concentrated sulfuric acid solution, placing the solution in an oil bath kettle at 80-100 ℃ for reacting for about 6 hours to obtain reaction liquid, performing suction filtration on the reaction liquid, washing a solid product to be neutral, and drying the solid product to obtain a strong oxidation product;
b, adding the strong oxidation product obtained in the step a into 34-50ml of concentrated sulfuric acid solution, adding 0.8-1g of sodium nitrate into the concentrated sulfuric acid solution, placing the concentrated sulfuric acid solution into an ice water bath, adding 5-10g of potassium permanganate, reacting for 2 hours at a constant temperature in a water bath kettle at 40-50 ℃, adding 4-5ml of 30% hydrogen peroxide for foaming expansion to be shiny golden yellow, washing the mixture to be neutral by hydrochloric acid and deionized water, ultrasonically dispersing and dissolving the mixture by using deionized water, centrifuging the mixture by using a centrifuge at 6000r/min for 6-8min, separating graphite which is not completely peeled off, and taking the upper liquid Graphene Oxide (GO) water dispersion liquid; and finally, freeze-drying the graphene oxide aqueous dispersion at-78 ℃ for 36 hours to obtain layered Graphene Oxide (GO).
Still further, the preparation method of the modified graphene oxide provided by the invention comprises the following steps:
dissolving graphene oxide in absolute ethyl alcohol to prepare 1mg/ml graphene oxide dispersion liquid, then adding silane coupling agent YDH-151 into the graphene oxide dispersion liquid according to the volume ratio of 1:5, and stirring at the constant temperature of 60 ℃ for 8-10 h to obtain Modified Graphene Oxide (MGO); the volume ratio of the graphene oxide dispersion liquid to the silane coupling agent YDH-151 is 1: 5.
The base material of the invention adopts a high-performance elastomer acrylate rubber, when the material is subjected to shear strain, the material can play a role of hysteresis damping through the friction energy consumption of the molecular main chains which are intertwined with each other, and meanwhile, the functional filler is added to assist in improving the damping performance, and the modified graphene oxide synergistic flame retardant is used for effectively reducing important fire-proof indexes such as smoke density, flame extension rate and the like of the damping material.
Further, the olefinic carbon damping material with high fireproof performance is applied to preparation of high-speed rail damping and noise reduction materials.
Compared with the prior art, the invention has the beneficial effects that:
(1) according to the invention, the Modified Graphene Oxide (MGO) is added into the damping sheet layer to form the nano-intercalation damping unit, the polymer damping unit is strongly hinged with the sheet layer between the layered inorganic nano-material layers, and when the damping unit is subjected to the action of an external force, the sheet layer and the polymer are converted into heat due to shearing and friction, so that the damping effect of the material is greatly improved.
(2) The Modified Graphene Oxide (MGO) and the flame retardant are used for synergistic flame retardance, the inorganic acid generated by the synergistic inhibition effect on an acid source, a carbon source and a gas source is used for strengthening a carbon layer and blocking heat release in principle, and a large amount of non-combustible gas is generated to play the effects of isolating oxygen and diluting oxygen concentration, so that the smoke density is effectively reduced, and the olefinic carbon damping material has the condition of high fireproof performance.
Drawings
FIG. 1 is a schematic structural diagram of a polymer-based damping material with a modified graphene oxide nano damping type structure;
fig. 2 is an SEM image of Graphene Oxide (GO) and Modified Graphene Oxide (MGO);
FIG. 3 is a representation of the damping performance loss factor in an example;
FIG. 4 is a carbon sample of an olefinic carbon damping material containing a flame retardant A after being fired;
FIG. 5 is a carbon sample of an olefinic carbon damping material containing a flame retardant A and a flame retardant B after being fired;
FIG. 6 is a graph comparing the heat release rate during combustion of an olefinic carbon damping material containing flame retardant A and containing flame retardants A and B;
FIG. 7 is a graph comparing the total heat release rate during combustion of an olefinic carbon damping material containing flame retardant A and B;
FIG. 8 is a graph comparing the release rate of smoke density for an olefinic carbon damping material containing flame retardant A and B.
Detailed Description
The invention will now be further illustrated by the following examples, without limiting the scope of the invention thereto.
The antioxidant 616 is purchased from Kamike New Material science and technology Co., Ltd.
Example 1
Firstly, preparing graphene oxide, putting 1g of graphene into a round-bottom flask, placing the round-bottom flask in a 12ml concentrated sulfuric acid environment, sequentially adding 3g of potassium persulfate and 3g of phosphorus pentoxide, placing the mixture in an oil bath kettle at 80 ℃ after the addition is finished, reacting for about 6 hours, then carrying out suction filtration and solid-liquid separation, washing the product to be neutral, and drying to obtain a strong oxidation product.
And then taking the synthesized strong oxidation product as a raw material, carrying out Hammers reaction on the obtained strong oxide by improvement, adding 34ml of concentrated sulfuric acid and 0.8g of sodium nitrate into a reaction beaker, transferring the beaker into an ice water bath, adding 5g of potassium permanganate into the ice water bath, carrying out constant temperature reaction for 2 hours in a water bath kettle at 40 ℃, adding 4ml of 30% hydrogen peroxide solution for foaming and expanding to flash golden yellow, washing the obtained product with hydrochloric acid and deionized water to be neutral, ultrasonically dispersing and dissolving the product with deionized water, centrifuging the obtained product by a centrifuge at 6000r/min for 6min, separating graphite which is not completely peeled off, and taking the upper layer liquid Graphene Oxide (GO) water dispersion liquid. And finally, freeze-drying the graphene oxide aqueous dispersion at-78 ℃ for 36 hours to obtain layered Graphene Oxide (GO).
Then modifying the graphene oxide through surface silanization treatment, wherein the specific mode is as follows:
placing graphene oxide in absolute ethyl alcohol, dissolving the graphene oxide by ultrasonic waves to prepare 1mg/ml graphene oxide dispersion liquid, adding a silane coupling agent YDH-151 according to the volume ratio of the graphene oxide dispersion liquid to the silane coupling agent YDH-151 of 1:5, and stirring for 8 hours at the constant temperature of 60 ℃ to obtain the Modified Graphene Oxide (MGO).
After the graphene oxide is obtained, the materials are then blended and rolled into a sheet.
Weighing 10 parts of acrylate rubber, mixing the acrylate rubber with a 120 ℃ double-roll mill for 2min, after the acrylate rubber is uniformly spread, sequentially adding 2 parts of Modified Graphene Oxide (MGO), 2 parts of antioxidant 616, 20 parts of mica, 20 parts of vermiculite powder, 5 parts of calcium carbonate and 1 part of bentonite, and milling for 10min for blanking.
And then placing the leftover materials into a mold, protecting the surface with a polytetrafluoroethylene film, placing the mold in a full-automatic flat vulcanizing machine at the temperature of 120 ℃, preheating for 3min under the pressure of 10MPa, carrying out full pressure for 5min, carrying out air release for 3 times in the middle, cooling for 2min, taking out the mold, taking out the formed damping sheet, cooling to room temperature, and carrying out sample cutting and testing.
The results of the smoke density test for the product prepared in example 1 are shown in table 1.
TABLE 1
Effect of smoke density Oxygen index Smoke density rating Maximum smoke density
Test results 36 29.4 41.9
The following fire resistance performance test follow-up standard: EN45545-2 fire protection of vehicle materials and components requires the hazard class requirement of HL3, as shown in the drawing.
Example 2
The Modified Graphene Oxide (MGO) was prepared in the same manner as in example 1.
Weighing 10 parts of acrylate rubber, mixing the acrylate rubber with a 120-DEG C double-roll mill for 2min, after the acrylate rubber is spread uniformly, sequentially adding 2 parts of Modified Graphene Oxide (MGO), 2 parts of antioxidant 616, 20 parts of mica, 20 parts of vermiculite powder, 5 parts of calcium carbonate, 1 part of bentonite, 4 parts of molybdenum trioxide and 1 part of zinc borate, and carrying out milling for 10min for blanking.
And then placing the leftover materials into a mold, protecting the surface with a polytetrafluoroethylene film, placing the mold in a full-automatic flat vulcanizing machine at the temperature of 120 ℃, preheating for 3min under the pressure of 10MPa, carrying out full pressure for 5min, carrying out air release for 3 times in the middle, cooling for 2min, taking out the mold, taking out the formed damping sheet, cooling to room temperature, and carrying out sample cutting and testing.
The smoke density test results of the product prepared in example 2 are shown in table 2.
TABLE 2
Effect of smoke density Oxygen index Smoke density rating Maximum smoke density
Test results 30 23 18.2
Example 3
The Modified Graphene Oxide (MGO) was prepared in the same manner as in example 1.
Weighing 10 parts of acrylate rubber, mixing the acrylate rubber with a 120-DEG C double-roll mill for 2min, after the acrylate rubber is spread uniformly, adding 2 parts of Modified Graphene Oxide (MGO), 2 parts of antioxidant 616, mica 20, 20 parts of vermiculite powder, 5 parts of calcium carbonate, 1 part of bentonite, 4 parts of molybdenum trioxide and 1 part of zinc borate in sequence, 3 parts of ammonium polyphosphate and 1 part of polyphosphazene, and carrying out milling for 10-12min for blanking.
And then placing the leftover materials into a mold, protecting the surface with a polytetrafluoroethylene film, placing the mold in a full-automatic flat vulcanizing machine at the temperature of 120 ℃, preheating for 3min under the pressure of 10MPa, carrying out full pressure for 5min, carrying out air release for 3 times in the middle, cooling for 2min, taking out the mold, taking out the formed damping sheet, cooling to room temperature, and carrying out sample cutting and testing.
The smoke density test results of the product prepared in example 3 are shown in table 3.
TABLE 3
Effect of smoke density Oxygen index Smoke density rating Maximum smoke density
Test results 36 0.6 2.3
Comparative example 1
The method for producing Graphene Oxide (GO) is the same as that shown in example 1.
Weighing 10 parts of acrylate rubber, mixing the acrylate rubber with a 120-DEG C double-roll mill for 2min, after the acrylate rubber is uniformly spread, sequentially adding 2 parts of Graphene Oxide (GO), 2 parts of antioxidant 616, 20 parts of mica, 20 parts of vermiculite powder, 5 parts of calcium carbonate and 1 part of bentonite, and milling for 10min for blanking.
And then placing the leftover materials into a mold, protecting the surface with a polytetrafluoroethylene film, placing the mold in a full-automatic flat vulcanizing machine at the temperature of 120 ℃, preheating for 3min under the pressure of 10MPa, carrying out full pressure for 5min, carrying out air release for 3 times in the middle, cooling for 2min, taking out the mold, taking out the formed damping sheet, cooling to room temperature, and carrying out sample cutting and testing.
The results of the smoke density test of the products prepared in the comparative examples are shown in table 4.
TABLE 4
Effect of smoke density Oxygen index Smoke density rating Maximum smoke density
Test results 32 30.5 40.2
Comparative example 2
The method for producing Graphene Oxide (GO) is the same as that shown in example 1.
Weighing 10 parts of acrylate rubber, mixing the acrylate rubber with a 120-DEG C double-roll mill for 2min, after the acrylate rubber is uniformly spread, sequentially adding 2 parts of Graphene Oxide (GO), 2 parts of antioxidant 616, 20 parts of mica, 20 parts of vermiculite powder, 5 parts of calcium carbonate, 1 part of bentonite, 4 parts of molybdenum trioxide and 1 part of zinc borate, and carrying out milling for 10min for blanking.
And then placing the leftover materials into a mold, protecting the surface with a polytetrafluoroethylene film, placing the mold in a full-automatic flat vulcanizing machine at the temperature of 120 ℃, preheating for 3min under the pressure of 10MPa, carrying out full pressure for 5min, carrying out air release for 3 times in the middle, cooling for 2min, taking out the mold, taking out the formed damping sheet, cooling to room temperature, and carrying out sample cutting and testing.
The results of the smoke density test of the products prepared in the comparative examples are shown in table 5.
TABLE 5
Effect of smoke density Oxygen index Smoke density rating Maximum smoke density
Test results 32 20 21.3
Example 1 and comparative example 1 are to verify the influence of graphene oxide and modified graphene oxide on the damping effect, the graphene oxide is beneficial to dispersion in a matrix after being modified, the occurrence of agglomeration is reduced, the compatibility with the matrix is enhanced, the damping effect is basically unchanged after being modified, the loss factor is about 1, but the damping performance in a low temperature range is improved. And the fold of the modified graphene oxide can be obviously reduced by observing under an electron microscope of 5um through the attached figure 2. The reason is that the modified graphene oxide has better compatibility in a polymer-based macromolecular chain and plays a role in lubrication, so that the sample wafer has the advantages of better elasticity, higher softness, lower glass transition temperature and contribution to construction.
The study found by example 2 and comparative example 2. Firstly, the effect of the smoke density is tested in consideration of cost, the maximum smoke density and the smoke density grade are greatly improved by compounding the molybdenum series flame retardants and zinc borate, the oxygen index, the smoke density grade and the maximum smoke density reach the standards, and the Modified Graphene Oxide (MGO) is better compatible with a base body because the surface tension is reduced, so that the effect of the modified graphene oxide on the smoke density is better reduced, the oxygen index can reach 32, the change of the smoke density grade and the maximum smoke density is very slight, in addition, the Modified Graphene Oxide (MGO) also has a promotion effect on the damping effect, the peak value of the damping loss factor of the modified graphene oxide is improved by about 0.15 relative to the peak value of the damping loss factor of the unmodified graphene oxide, but the molybdenum trioxide series flame retardants have an inhibition effect on the damping, so that the damping peak of the loss factor is reduced by about 0.2, and the molybdenum trioxide series flame retardants are in a controllable range. In example 3, the fire-proof performance is further studied, the carbon layer is strengthened from the aspect of acid source and carbon source through the compounding synergy of the graphene oxide and the nitrogen-phosphorus intumescent app, the carbon layer formed after the further improvement has no cracking phenomenon and is compact and complete and effectively prevents the further propagation of flame as shown in figures 4 and 5, figure 6 is the whole heat release rate curve of the combustion process of the olefinic carbon damping material in comparative example 2 and 3, we find that the effective combustion time after the carbon layer is blocked is reduced from 40s-550s in comparative example 2 to 31s-375s in comparative example 3, figure 7 shows that the total smoke release rate is reduced from 39.4MJ/m in comparative example 2 to 28.4MJ/m, and the total smoke release rate is the key for determining the flame extension index, the flame extension rate plays a very important role in fire fighting, so that the fire resistance is obviously improved compared with the prior art. Fig. 8 is a release rate curve of the whole smoke density, and the comparison shows that the synergistic effect of the nitrogen-phosphorus intumescent app and the graphene is better, the smoke density is reduced by two thirds compared with the smoke density reduced by compounding a molybdenum-series flame retardant and zinc borate, the effect is obvious, and the smoke density can be used as a bright spot of a high-fire-resistance alkene-carbon damping material. In a word, the alkene carbon damping material effectively solves the problem of fire resistance after being improved step by step, and provides a guarantee for safe industrialization.
In the above examples and comparative examples, in the scheme for verifying the damping and fire-proof performance of the olefinic carbon damping material, any modification, equivalence, replacement and improvement, etc. in the polymer matrix proportion, material selection and processing mode related to the present invention should be included in the protection scope of the present invention.
The damping loss factors of the above examples and comparative examples were measured in the following manner.
Testing an instrument: dynamic mechanical analyzer manufactured in uk, Tritec2000, Dynamic Mechanical Analyzer (DMA) by trination Technology Ltd.
The test method comprises the following steps: resonance method
And (3) testing conditions are as follows: the loss factor of each sample was measured in compression mode from-40 ℃ to 120 ℃ at a frequency of 2Hz and a heating rate of 3 ℃/min.
The fire resistance test method comprises the following steps: cone calorimetry and smoke density test method
Fire resistance tests follow the standard: EN45545-2 requires fire protection of vehicle materials and components with the hazard class requirement of HL 3.

Claims (7)

1. The olefinic carbon damping material with high fireproof performance is characterized in that: the olefinic carbon damping material with high fireproof performance comprises the following components in parts by weight: 10-12 parts of acrylate rubber, 2-3 parts of antioxidant, 2-4 parts of graphene oxide or modified graphene oxide, 20-22 parts of mica, 20-22 parts of vermiculite powder, 5-6 parts of calcium carbonate, 1-2 parts of bentonite, 5-6 parts of flame retardant A and 4-6 parts of flame retardant B; the flame retardant A is a product obtained by compounding molybdenum trioxide and zinc borate in a mass ratio of 4: 1; the flame retardant B is a product obtained by compounding ammonium polyphosphate and polyphosphoric acid amide in a mass ratio of 3: 1.
2. The olefinic carbon damping material with high fire-retardant property as claimed in claim 1, wherein: the acrylate rubber is epoxy AR54 rubber.
3. The olefinic carbon damping material with high fire-retardant property as claimed in claim 1, wherein: the antioxidant is oligomeric phenol 616.
4. The olefinic carbon damping material with high fire-retardant property as claimed in claim 1, wherein: the modified graphene oxide is graphene oxide with the surface subjected to silanization treatment.
5. The olefinic carbon damping material with high fire-retardant property as claimed in claim 4, wherein: the silanization treatment method comprises the following steps:
dissolving graphene oxide in absolute ethyl alcohol to prepare 1mg/ml graphene oxide dispersion liquid, then adding a silane coupling agent YDH-151 into the graphene oxide dispersion liquid, and stirring at the constant temperature of 60 ℃ for 8-10 h to obtain modified graphene oxide; the volume ratio of the graphene oxide dispersion liquid to the silane coupling agent YDH-151 is 1: 5.
6. The preparation method of the olefinic carbon damping material with high fireproof performance as claimed in claim 1, wherein the preparation method comprises the following steps: the method comprises the following steps:
(1) weighing 10-12 parts of acrylate rubber, mixing for 2-3min in a two-roll mill at the temperature of 120-130 ℃, after the acrylate rubber is uniformly spread, sequentially adding 2-4 parts of graphene oxide or modified graphene oxide, 2-3 parts of antioxidant 616, 20-22 parts of mica, 20-22 parts of vermiculite powder, 5-6 parts of calcium carbonate, 1-2 parts of bentonite, 5-6 parts of flame retardant A and 4-6 parts of flame retardant B, and discharging after the acrylate rubber is mixed for 10-12 min;
(2) and (2) then placing the leftover material obtained in the step (1) into a mold, protecting the surface with a polytetrafluoroethylene film, placing the mold in a full-automatic plate vulcanizing machine at the temperature of 120-12 MPa, preheating for 3-5min, fully pressing for 5-8min, discharging gas for 3-5 times, cooling for 2-3min, and taking out the formed damping sheet from the mold to cool to room temperature to obtain the olefinic carbon damping material with high fireproof performance.
7. The application of the olefinic carbon damping material with high fireproof performance as claimed in claim 1 in preparing shock absorption and noise reduction materials for high-speed rails.
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CN105462132A (en) * 2015-12-24 2016-04-06 嘉兴安基新材料科技有限公司 Halogen-free and inflaming-retarding damping material and preparation method thereof
CN107501666A (en) * 2017-08-15 2017-12-22 东方雨虹民用建材有限责任公司 Composite damping material, damping waterproof packing material and preparation method thereof
CN107698916A (en) * 2017-09-27 2018-02-16 南京理工大学 Wide temperature range ACM base graphene oxide damping material and preparation method thereof
CN108276688A (en) * 2018-03-23 2018-07-13 常州大学 A kind of fire-retardant damping-constraining piece of automobile-used graphene and preparation method thereof

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CN105462132A (en) * 2015-12-24 2016-04-06 嘉兴安基新材料科技有限公司 Halogen-free and inflaming-retarding damping material and preparation method thereof
CN107501666A (en) * 2017-08-15 2017-12-22 东方雨虹民用建材有限责任公司 Composite damping material, damping waterproof packing material and preparation method thereof
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CN108276688A (en) * 2018-03-23 2018-07-13 常州大学 A kind of fire-retardant damping-constraining piece of automobile-used graphene and preparation method thereof

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