CN112679808B - Low-creep high-damping rubber material and preparation method and application thereof - Google Patents
Low-creep high-damping rubber material and preparation method and application thereof Download PDFInfo
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Abstract
The invention provides a low-creep high-damping rubber material, and a preparation method and application thereof, and belongs to the technical field of rubber materials. According to the invention, the siloxane coupling agent is used for combining graphite on the surface of the rubber macromolecules to form a lubricating layer, so that heat generated by mutual friction among the rubber macromolecules is reduced, the elastic deformation capacity of the rubber macromolecules is prolonged, the rebound performance of a rubber product is improved, and the creep performance of a rubber material is improved. The damping auxiliary agent disclosed by the invention uses the mixture of the polyester long fiber and the mica powder, the polyester long fiber has the performance characteristics of high rigidity, high toughness, good creep resistance, good fatigue resistance and the like, and the polyester long fiber is inserted between lamellar mica, so that the rubber material maintains good rebound resilience and creep resistance while the high damping characteristic is endowed. The results of the examples show that the rubber support prepared from the rubber material has low creep and high damping characteristics.
Description
Technical Field
The invention relates to the technical field of rubber materials, in particular to a low-creep high-damping rubber material, and a preparation method and application thereof.
Background
Creep refers to the process of gradually increasing deformation of a material with time extension under the action of a certain temperature and constant external force, and is a phenomenon of mechanical relaxation. Creep is an important property of rubber shock absorbing members, and can affect the dimensional stability and service life of a high-damping rubber support, and after a period of use, the product can be permanently deformed, so that the size of the product is changed. For bridges and building supports, excessive creep of rubber products can affect the operational safety of bridges or buildings.
In addition, the rubber base material is required to have good damping performance, so that the rubber base is often added with damping materials in order to have high damping characteristics, the loss coefficient of rubber is increased by adding the damping materials, and creep of the rubber base in the long-term use process is further increased.
Disclosure of Invention
The invention aims to provide a low-creep high-damping rubber material, a preparation method and application thereof.
In order to achieve the above object, the present invention provides the following technical solutions:
the invention provides a low-creep high-damping rubber material, which comprises the following preparation raw materials in parts by weight: 50 to 90 parts of deproteinized natural rubber, 10 to 50 parts of chloroprene rubber, 2 to 10 parts of graphite, 0.5 to 5 parts of siloxane coupling agent, 25 to 70 parts of carbon black, 10 to 30 parts of damping auxiliary agent, 4 to 8 parts of active agent, 5 to 15 parts of softening agent, 1 to 3 parts of vulcanizing agent, 1 to 3 parts of accelerator and 1 to 3 parts of anti-aging agent;
the damping auxiliary agent is a mixture of polyester long fibers and mica powder.
Preferably, the mass ratio of the polyester long fiber to the mica powder is 3:1.
preferably, the deproteinized natural rubber has nitrogen content less than or equal to 0.3%, volatile content less than or equal to 0.5%, ash content less than or equal to 0.2% and tensile strength more than or equal to 20MPa.
Preferably, the diameter of the graphite is 0.5-5 mu m, the thickness is 0.8-1.2 nm, and the number of layers is 1-3.
Preferably, the siloxane coupling agent is one or more of KH-550, KH-570, KH-560, A-151 and A-171.
Preferably, the carbon black is one or more of N110, N115, N220, N330, and N774.
The invention provides a preparation method of the low-creep high-damping rubber material, which comprises the following steps:
firstly mixing deproteinized natural rubber, chloroprene rubber, graphite and a siloxane coupling agent to obtain masterbatch;
performing secondary mixing on the masterbatch, the active agent, the anti-aging agent, the carbon black, the damping auxiliary agent and the softening agent to obtain intermediate rubber;
and thirdly mixing the intermediate rubber, the vulcanizing agent and the accelerator to obtain the low-creep high-damping rubber material.
Preferably, the rubber discharging temperature of the first mixing is 150-180 ℃; the rubber discharging temperature of the second mixing is 150-180 ℃; the rubber discharging temperature of the third mixing is 50-80 ℃.
The invention provides an application of the low-creep high-damping rubber material prepared by the scheme or the preparation method of the scheme in preparing rubber supports;
the method of application comprises the following steps:
and (3) stacking the low-creep high-damping rubber material and a steel plate, and vulcanizing to obtain the rubber support.
Preferably, the temperature of the vulcanization is 120-140 ℃, the pressure of the vulcanization is 6-15 MPa, and the time of the vulcanization is 4-24 hours.
The invention provides a low-creep high-damping rubber material, which comprises the following preparation raw materials in parts by weight: 50 to 90 parts of deproteinized natural rubber, 10 to 50 parts of chloroprene rubber, 2 to 10 parts of graphite, 0.5 to 5 parts of siloxane coupling agent, 25 to 70 parts of carbon black, 10 to 30 parts of damping auxiliary agent, 4 to 8 parts of active agent, 5 to 15 parts of softening agent, 1 to 3 parts of vulcanizing agent, 1 to 3 parts of accelerator and 1 to 3 parts of anti-aging agent; the damping auxiliary agent is a mixture of polyester long fibers and mica powder.
According to the invention, the siloxane coupling agent is used for combining graphite on the surface of the rubber macromolecules to form a lubricating layer, so that heat generated by mutual friction among the rubber macromolecules is reduced, the elastic deformation capacity of the rubber macromolecules is prolonged, the rebound performance of a rubber product is improved, and the creep performance of a rubber material is improved. The damping auxiliary agent disclosed by the invention uses the mixture of the polyester long fiber and the mica powder, the polyester long fiber has the performance characteristics of high rigidity, high toughness, good creep resistance, good fatigue resistance and the like, and the polyester long fiber is inserted between lamellar mica, so that the rubber material maintains good rebound resilience and creep resistance while the high damping characteristic is endowed.
The results of the examples show that the rubber support prepared from the rubber material has low creep and high damping characteristics.
Detailed Description
The invention provides a low-creep high-damping rubber material, which comprises the following preparation raw materials in parts by weight: 50 to 90 parts of deproteinized natural rubber, 10 to 50 parts of chloroprene rubber, 2 to 10 parts of graphite, 0.5 to 5 parts of siloxane coupling agent, 25 to 70 parts of carbon black, 10 to 30 parts of damping auxiliary agent, 4 to 8 parts of active agent, 5 to 15 parts of softening agent, 1 to 3 parts of vulcanizing agent, 1 to 3 parts of accelerator and 1 to 3 parts of anti-aging agent;
the damping auxiliary agent is a mixture of polyester long fibers and mica powder.
The low-creep high-damping rubber material provided by the invention comprises 50-90 parts by weight of deproteinized natural rubber, preferably 60-80 parts by weight, and more preferably 65-75 parts by weight. In the invention, the deproteinized natural rubber preferably has a nitrogen content of not more than 0.3%, a volatile content of not more than 0.5%, an ash content of not more than 0.2% and a tensile strength of not less than 20MPa. The deproteinized natural rubber adopted by the invention has lower creep property than the common natural rubber.
Based on the weight parts of the deproteinized natural rubber, the low-creep high-damping rubber material provided by the invention comprises 10-50 parts of chloroprene rubber, preferably 20-40 parts, and more preferably 25-35 parts.
Based on the weight parts of the deproteinized natural rubber, the low-creep high-damping rubber material provided by the invention comprises 2-10 parts of graphite, preferably 3-9 parts, and more preferably 4-8 parts. In the present invention, the diameter of the graphite is preferably 0.5 to 5. Mu.m, the thickness is preferably 0.8 to 1.2nm, and the number of layers is preferably 1 to 3. The invention uses graphite to reduce the intermolecular friction of natural rubber.
Based on the weight parts of the deproteinized natural rubber, the low-creep high-damping rubber material provided by the invention comprises 0.5 to 5 parts, preferably 1 to 4 parts, more preferably 2 to 3 parts of siloxane coupling agent. In the present invention, the silicone coupling agent is preferably one or more of KH-550, KH-570, KH-560, A-151 and A-171. When the siloxane coupling agent is a plurality of substances, the invention has no special requirement on the proportion of each substance, and the mixture ratio can be any. According to the invention, the siloxane coupling agent is used for combining graphite on the surface of the rubber macromolecules to form a lubricating layer, so that heat generated by mutual friction among the rubber macromolecules is reduced, the elastic deformation capacity of the rubber macromolecules is prolonged, the rebound performance of a rubber product is improved, and the creep performance of a rubber material is improved.
Based on the weight parts of the deproteinized natural rubber, the low-creep high-damping rubber material provided by the invention comprises 25-70 parts of carbon black, preferably 30-60 parts, and more preferably 40-50 parts. In the present invention, the carbon black is preferably one or more of N110, N115, N220, N330 and N774. When the carbon black is a plurality of the substances, the invention has no special requirement on the mixture ratio of the substances, and the mixture ratio can be any. In the present invention, the carbon black functions to reinforce natural rubber.
Based on the weight parts of the deproteinized natural rubber, the low-creep high-damping rubber material provided by the invention comprises 10-30 parts of damping auxiliary agent, preferably 15-25 parts, and more preferably 17-23 parts. In the invention, the damping auxiliary agent is a mixture of polyester long fibers and mica powder. In the present invention, the diameter of the long fibers is preferably 0.2 to 0.6mm, more preferably 0.3 to 0.5mm; the length is preferably 10 to 30mm, more preferably 15 to 25mm.
In the invention, the mass ratio of the polyester long fiber to the mica powder is preferably 3:1. the damping auxiliary agent disclosed by the invention uses the mixture of the polyester long fibers and the mica powder, and the long fibers have the characteristics of high rigidity, high toughness, good creep resistance, good fatigue resistance and the like, and the polyester long fibers are inserted between lamellar mica, so that the rubber maintains good rebound resilience and creep resistance while the high damping characteristic is endowed.
Based on the weight parts of the deproteinized natural rubber, the low-creep high-damping rubber material provided by the invention comprises 4-8 parts of an active agent, preferably 5-7 parts, and more preferably 5.5-6.5 parts. In the present invention, the active agent is preferably a mixture of stearic acid and zinc oxide. The mass ratio of the stearic acid to the zinc oxide is preferably 1: (1.5-3). In the present invention, the active agent functions to reduce the activation energy of the vulcanizing agent and the accelerator and to increase the vulcanization reaction rate. .
Based on the weight parts of the deproteinized natural rubber, the low-creep high-damping rubber material provided by the invention comprises 5-15 parts of softening agent, preferably 7-13 parts, and more preferably 8-12 parts. In the invention, the softener comprises one or more of engine oil, paraffin oil, naphthenic oil, aromatic oil, dioctyl ester and dibutyl ester. When the softening agent is used in a plurality of types, the invention has no special requirement on the proportion of each softening agent, and the softening agent can be used in any proportion. In the present invention, the softener functions to adjust the hardness and elastic modulus of rubber.
Based on the weight parts of the deproteinized natural rubber, the low-creep high-damping rubber material provided by the invention comprises 1 to 3 parts of vulcanizing agent, preferably 1.5 to 2.5 parts, and more preferably 1.7 to 2.2 parts. In the present invention, the vulcanizing agent preferably includes sulfur.
Based on the weight parts of the deproteinized natural rubber, the low-creep high-damping rubber material provided by the invention comprises 1 to 3 parts of accelerator, preferably 1.2 to 2.5 parts, and more preferably 1.5 to 2.0 parts. In the present invention, the accelerator is preferably N-cyclohexyl-2-benzothiazole sulfenamide.
Based on the weight parts of the deproteinized natural rubber, the low-creep high-damping rubber material provided by the invention comprises 1 to 3 parts of an anti-aging agent, preferably 1.3 to 2.7 parts, and more preferably 1.5 to 2.3 parts. In the present invention, the antioxidant is preferably N-isopropyl-N' -phenyl-p-phenylenediamine.
The invention provides a preparation method of the low-creep high-damping rubber material, which comprises the following steps:
firstly mixing deproteinized natural rubber, chloroprene rubber, graphite and a siloxane coupling agent to obtain masterbatch;
performing secondary mixing on the masterbatch, the active agent, the anti-aging agent, the carbon black, the damping auxiliary agent and the softening agent to obtain intermediate rubber;
and thirdly mixing the intermediate rubber, the vulcanizing agent and the accelerator to obtain the low-creep high-damping rubber material.
The invention carries out first mixing on deproteinized natural rubber, chloroprene rubber, graphite and a siloxane coupling agent to obtain master batch.
The present invention preferably involves adding deproteinized natural rubber, neoprene, graphite, and a silicone coupling agent to an internal mixer for a first mixing. In the present invention, the rotation speed of the first kneading is preferably 40 to 70r/min, more preferably 45 to 65r/min, and still more preferably 50 to 60r/min. In the present invention, the rubber discharge temperature of the first kneading is preferably 150 to 180 ℃, more preferably 160 to 170 ℃.
After the masterbatch is obtained, the masterbatch, the active agent, the anti-aging agent, the carbon black, the damping aid and the softening agent are subjected to secondary mixing to obtain intermediate rubber.
In the present invention, the masterbatch is preferably put into an internal mixer, and an active agent, an antioxidant, carbon black, a damping aid and a softener are added to carry out secondary mixing. In the present invention, the temperature of the second kneading is preferably 120 to 150 ℃, more preferably 125 to 145 ℃, and even more preferably 130 to 140 ℃.
After the intermediate rubber is obtained, the intermediate rubber, the vulcanizing agent and the accelerator are subjected to third mixing, so that the low-creep high-damping rubber material is obtained.
The present invention preferably carries out the third kneading in an open mill. In the present invention, the temperature of the third kneading is preferably 50 to 80℃and more preferably 60 to 70 ℃. The invention preferably rewrites 3 times.
The invention provides an application of the low-creep high-damping rubber material prepared by the scheme or the preparation method of the scheme in preparing rubber supports;
the method of application comprises the following steps:
and (3) stacking the low-creep high-damping rubber material and a steel plate, and vulcanizing to obtain the rubber support.
The present invention is not particularly limited to the lamination method and the number of layers, and the lamination method and the number of layers are well known in the art.
In the present invention, the temperature of the vulcanization is preferably 120 to 140 ℃, more preferably 125 to 135 ℃; the pressure of vulcanization is preferably 6 to 15MPa, more preferably 8 to 12MPa; the time for vulcanization is preferably 4 to 24 hours, more preferably 8 to 20 hours, and still more preferably 10 to 15 hours.
The low creep high damping rubber material, the preparation method and application thereof provided by the present invention are described in detail below with reference to examples, but they should not be construed as limiting the scope of the present invention.
The deproteinized natural rubber used in the following examples has nitrogen content of 0.3% or less, volatile content of 0.5% or less, ash content of 0.2% or less, and tensile strength of 20MPa or more; the diameter of the graphite is 0.5-5 mu m, the thickness is 0.8-1.2 nm, and the number of layers is 1-3.
Example 1
Adding 50 parts by weight of deproteinized natural rubber, 50 parts by weight of chloroprene rubber, 2 parts by weight of graphite and 0.5 part by weight of siloxane coupling agent A-151 into an internal mixer, setting the rotating speed to 40r/min, and mixing to 150 ℃ for rubber discharge to obtain master batch;
putting the masterbatch into an internal mixer, adding 4 parts by weight of an active agent (1 part by weight of stearic acid and 3 parts by weight of zinc oxide), 1 part by weight of an anti-aging agent N-isopropyl-N' -phenyl-p-phenylenediamine, 25 parts by weight of carbon black N110, 30 parts by weight of a damping auxiliary agent (a mixture of 22.5 parts by weight of polyester long fibers and 7.5 parts by weight of mica powder), and 5 parts by weight of softener paraffin oil, and discharging rubber when the temperature is 120 ℃ to obtain intermediate rubber;
and (3) mixing the intermediate rubber, 1 part by weight of sulfur serving as a vulcanizing agent and 3 parts by weight of N-cyclohexyl-2-benzothiazole sulfenamide serving as an accelerator in an open mill for 3 times to prepare the rubber material.
Preparation of a rubber support:
the rubber material and the steel plate of the embodiment are stacked, heated and vulcanized on a flat vulcanizing machine, the vulcanization temperature is 120 ℃, the vulcanization pressure is 15MPa, and the vulcanization time is 4 hours, so that the rubber support is obtained.
Example 2
Adding 90 parts by weight of deproteinized natural rubber, 10 parts by weight of chloroprene rubber, 10 parts by weight of graphite and 5 parts by weight of siloxane coupling agent A-171 into an internal mixer, setting the rotating speed to 70r/min, and mixing to 180 ℃ for rubber discharge to obtain master batch;
putting the masterbatch into an internal mixer, adding 8 parts by weight of an active agent (3 parts by weight of stearic acid and 5 parts by weight of zinc oxide), 3 parts by weight of an anti-aging agent N-isopropyl-N' -phenyl-p-phenylenediamine, 70 parts by weight of carbon black N774, 10 parts by weight of a damping auxiliary agent (a mixture of 7.5 parts by weight of polyester long fibers and 2.5 parts by weight of mica powder) and 5 parts by weight of a softening agent dioctyl, and discharging rubber when the temperature is 150 ℃ to obtain an intermediate rubber;
and (3) pouring the intermediate rubber, 3 parts by weight of sulfur serving as a vulcanizing agent and 1 part by weight of N-cyclohexyl-2-benzothiazole sulfenamide serving as an accelerator on an open mill for 3 times to prepare the rubber material.
Preparation of a rubber support:
the rubber material and the steel plate in the embodiment are stacked, heated and vulcanized on a flat vulcanizing machine, the vulcanization temperature is 140 ℃, the vulcanization pressure is 6MPa, and the vulcanization time is 24 hours, so that the rubber support is obtained.
Example 3
Adding 60 parts by weight of deproteinized natural rubber, 40 parts by weight of chloroprene rubber, 4 parts by weight of graphite and 1 part by weight of siloxane coupling agent (KH-550) into an internal mixer, setting the rotating speed to 50r/min, and mixing to 160 ℃ for rubber discharge to obtain master batch;
adding the masterbatch into an internal mixer, adding 6 parts by weight of an active agent (2 parts by weight of stearic acid and 4 parts by weight of zinc oxide), 2 parts by weight of an anti-aging agent N-isopropyl-N' -phenyl p-phenylenediamine, 35 parts by weight of carbon black N110, 12 parts by weight of a damping auxiliary agent (a mixture of 9 parts by weight of polyester long fibers and 3 parts by weight of mica powder), 8 parts by weight of softener engine oil, mixing to 130 ℃, discharging rubber, adding 1.5 parts by weight of a vulcanizing agent sulfur and 2 parts by weight of an accelerator N-cyclohexyl-2-benzothiazole sulfenamide on an open mill, and carrying out reverse refining for 3 times to prepare a rubber sheet for standby;
preparation of a rubber support:
the rubber material and the steel plate in the embodiment are stacked, heated and vulcanized on a flat vulcanizing machine, the vulcanization temperature is 100 ℃, the vulcanization pressure is 12MPa, and the vulcanization time is 18 hours, so that the rubber support is obtained.
Example 4
Adding 70 parts by weight of natural rubber, 30 parts by weight of chloroprene rubber, 8 parts by weight of graphite and 3 parts by weight of siloxane coupling agent (KH-570) into an internal mixer, setting the rotating speed to 60r/min, and mixing to 170 ℃ to discharge rubber to obtain master batch;
putting the masterbatch into an internal mixer, adding 6 parts by weight of an active agent (1.5 parts by weight of stearic acid and 4.5 parts by weight of zinc oxide), 2.5 parts by weight of an anti-aging agent (N-isopropyl-N' -phenyl-p-phenylenediamine), 45 parts by weight of carbon black N220, 20 parts by weight of a damping auxiliary agent (a mixture of 15 parts by weight of polyester long fibers and 5 parts by weight of mica powder), and 10 parts by weight of a softener (naphthenic oil), and discharging rubber when mixing to 145 ℃ to obtain an intermediate rubber;
and (3) pouring the intermediate rubber, 2 parts by weight of vulcanizing agent (sulfur) and 2 parts by weight of accelerator (N-cyclohexyl-2-benzothiazole sulfenamide) on an open mill for 3 times to prepare the rubber material.
Preparation of a rubber support:
the rubber material and the steel plate are stacked, heated and vulcanized on a flat vulcanizing machine, wherein the vulcanization temperature is 135 ℃, the vulcanization pressure is 10MPa, and the vulcanization time is 14 hours, so that the rubber support is obtained.
Example 5
Adding 80 parts by weight of natural rubber, 20 parts by weight of chloroprene rubber, 6 parts by weight of graphite and 4 parts by weight of siloxane coupling agent (KH-570) into an internal mixer, setting the rotating speed to 65r/min, and mixing to 155 ℃ for rubber discharge to obtain master batch;
putting the masterbatch into an internal mixer, adding 7 parts by weight of an active agent (2 parts by weight of stearic acid and 5 parts by weight of zinc oxide), 2.5 parts by weight of an anti-aging agent (N-isopropyl-N' -phenyl-p-phenylenediamine), 60 parts by weight of carbon black (N330) and 24 parts by weight of a damping auxiliary agent (a mixture of 18 parts by weight of polyester long fibers and 6 parts by weight of mica powder), and discharging rubber when the mixture is mixed to 145 ℃ to obtain intermediate rubber;
the intermediate rubber, 2.3 parts by weight of vulcanizing agent (sulfur) and 1.8 parts by weight of accelerator (N-cyclohexyl-2-benzothiazole sulfenamide) are reversed and refined for 3 times on an open mill to prepare the rubber material.
Preparation of a rubber support:
the rubber material and the steel plate of the embodiment are stacked, heated and vulcanized on a flat vulcanizing machine, the vulcanization temperature is 130 ℃, the vulcanization pressure is 8MPa, and the vulcanization time is 12 hours, so that the rubber support is obtained.
Comparative example 1
The difference from example 5 is that the hindered phenol type damping agent was changed to AO-80.
Comparative example 2
The difference from example 1 is that no silicone coupling agent is used.
Performance test:
the high damping rubber supports prepared in examples 1 to 5 and comparative examples 1 to 2 were subjected to physical property detection according to the standard GB20688.2-2006, and the detection results are shown in Table 1.
Table 1 properties of the supports prepared in examples 1 to 5
As can be seen from the results of Table 1, comparative examples 1 to 2 were inferior in creep properties to those of the supports of examples 1 to 5, since no silicone coupling agent was used or a conventional damping aid was used.
The foregoing is merely a preferred embodiment of the present invention and it should be noted that modifications and adaptations to those skilled in the art may be made without departing from the principles of the present invention, which are intended to be comprehended within the scope of the present invention.
Claims (6)
1. The low-creep high-damping rubber material is characterized by comprising the following preparation raw materials in parts by weight: 50-90 parts of deproteinized natural rubber, 10-50 parts of neoprene, 2-10 parts of graphite, 0.5-5 parts of siloxane coupling agent, 25-70 parts of carbon black, 10-30 parts of damping auxiliary agent, 4-8 parts of active agent, 5-15 parts of softener, 1-3 parts of vulcanizing agent, 1-3 parts of accelerator and 1-3 parts of anti-aging agent;
the damping auxiliary agent is a mixture of polyester long fibers and mica powder; the diameter of the polyester long fiber is 0.2-0.6 mm, and the length of the polyester long fiber is 10-30 mm; the mass ratio of the polyester long fiber to the mica powder is 3:1, a step of;
the deproteinized natural rubber has nitrogen content less than or equal to 0.3%, volatile content less than or equal to 0.5%, ash content less than or equal to 0.2% and tensile strength more than or equal to 20MPa;
the siloxane coupling agent is one or more of KH-550, KH-570, KH-560, A-151 and A-171;
the carbon black is one or more of N110, N115, N220, N330 and N774;
the preparation method of the low-creep high-damping rubber material comprises the following steps:
firstly mixing deproteinized natural rubber, chloroprene rubber, graphite and a siloxane coupling agent to obtain masterbatch;
performing secondary mixing on the masterbatch, the active agent, the anti-aging agent, the carbon black, the damping auxiliary agent and the softening agent to obtain intermediate rubber;
and thirdly mixing the intermediate rubber, the vulcanizing agent and the accelerator to obtain the low-creep high-damping rubber material.
2. The low-creep high-damping rubber material according to claim 1, wherein the graphite has a diameter of 0.5-5 μm, a thickness of 0.8-1.2 nm and a number of layers of 1-3.
3. The preparation method of the low-creep high-damping rubber material according to any one of claims 1-2, comprising the following steps:
firstly mixing deproteinized natural rubber, chloroprene rubber, graphite and a siloxane coupling agent to obtain masterbatch;
performing secondary mixing on the masterbatch, the active agent, the anti-aging agent, the carbon black, the damping auxiliary agent and the softening agent to obtain intermediate rubber;
and thirdly mixing the intermediate rubber, the vulcanizing agent and the accelerator to obtain the low-creep high-damping rubber material.
4. The method according to claim 3, wherein the rubber discharge temperature of the first mixing is 150-180 ℃; the rubber discharging temperature of the second mixing is 150-180 ℃; and the rubber discharging temperature of the third mixing is 50-80 ℃.
5. The low-creep high-damping rubber material according to any one of claims 1 to 2 or the low-creep high-damping rubber material prepared by the preparation method according to claim 3 or 4, and the application thereof in the preparation of rubber supports;
the method of application comprises the following steps:
and (3) stacking the low-creep high-damping rubber material and a steel plate, and vulcanizing to obtain the rubber support.
6. The use according to claim 5, wherein the temperature of the vulcanization is 120-140 ℃, the pressure of the vulcanization is 6-15 mpa, and the time of the vulcanization is 4-24 hours.
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| CN104788759B (en) * | 2015-04-10 | 2017-07-18 | 北京化工大学 | A kind of high-damping bearing nitile-butadiene rubber composite material and preparation method thereof |
| CN104877191A (en) * | 2015-06-19 | 2015-09-02 | 成都职业技术学院 | Damping rubber with low cost and high damping performance and manufacturing method thereof |
| CN105153503A (en) * | 2015-08-18 | 2015-12-16 | 合肥市再德高分子材料有限公司 | Special high-damping rubber material for seismic isolation rubber bearing of bridge |
| CN105949543A (en) * | 2016-07-27 | 2016-09-21 | 广西南宁胜祺安科技开发有限公司 | High-performance rubber vibration-absorptive material and preparation method thereof |
| CN107698829A (en) * | 2017-10-11 | 2018-02-16 | 青岛科技大学 | A kind of wide temperature range damping rubber composite and preparation method thereof |
| CN108752930A (en) * | 2018-05-21 | 2018-11-06 | 合肥仁德电子科技有限公司 | A kind of use for electronic products high damping material and preparation method thereof |
| CN108659290A (en) * | 2018-06-11 | 2018-10-16 | 江苏苏东化工机械有限公司 | A kind of enhancing composite rubber material strainer plate material |
| KR20200025748A (en) * | 2018-08-31 | 2020-03-10 | 현대자동차주식회사 | Rubber composition for under tread with high hardness and the preparing method thereof |
| CN109762215A (en) * | 2019-01-17 | 2019-05-17 | 北京化工大学 | High-performance polyimide long fiber reinforcement rubber composite material and preparation method thereof |
| CN110845770A (en) * | 2019-11-06 | 2020-02-28 | 陕西省石油化工研究设计院 | Graphene composite damping rubber material and preparation method thereof |
| CN111621068B (en) * | 2020-06-30 | 2022-11-01 | 株洲时代新材料科技股份有限公司 | Low-creep flame-retardant vibration-damping rubber and preparation method thereof |
| CN112094463B (en) * | 2020-09-27 | 2022-10-21 | 烟台橡研材料科技有限公司 | High-damping sound-absorbing rubber and preparation method thereof |
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