CN113861574A - Rubber composition of torsion damper for automobile and processing technology thereof - Google Patents
Rubber composition of torsion damper for automobile and processing technology thereof Download PDFInfo
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- CN113861574A CN113861574A CN202111269097.2A CN202111269097A CN113861574A CN 113861574 A CN113861574 A CN 113861574A CN 202111269097 A CN202111269097 A CN 202111269097A CN 113861574 A CN113861574 A CN 113861574A
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/16—Elastomeric ethene-propene or ethene-propene-diene copolymers, e.g. EPR and EPDM rubbers
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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
- C08K2003/2296—Oxides; Hydroxides of metals of zinc
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
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- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention discloses a rubber composition of a torsion damper for an automobile and a processing technology thereof, which is characterized in that: the composition is prepared from the following raw materials in parts by weight: 175 parts by weight of ethylene propylene diene monomer; 5-7 parts of inorganic active agent; 0.5-1.5 parts by weight of organic active agent; 1-2 parts of N-isopropyl-N' -phenyl p-phenylenediamine; 1.2 parts by weight of a 2, 2, 4-trimethyl-1, 2-dihydroquinoline polymer; 2-3 parts of resin; 50-70 parts of reinforcing agent; 38-46 parts of a plasticizer; 2-5 parts of a cross-linking agent; 1-2.5 parts of accelerator. The invention has excellent durability and vibration absorption performance, effectively solves the problem of low-speed torsional vibration or noise in a vehicle, has the advantages of intact product after 1000 ten thousand fatigue lives, less than or equal to 5 percent of natural frequency variation after fatigue and less than 1g.cm of residual unbalance of a rotating speed 1000r/min assembly.
Description
Technical Field
The invention relates to the field of automobile accessory production, in particular to a rubber composition of a torsion damper for an automobile and a processing technology thereof.
Background
Due to the complexity of the whole automobile, each part or system may generate structural resonance when influenced by other systems or external vibration due to the structural mode problem of the part or system, so that the performance, fatigue and comfort of the whole automobile are influenced due to the problems of vibration, noise and the like. The torsional vibration damper acts like a patch sucker and directly and effectively absorbs vibration, so that a target part or system reaches a proper degree and the overall comfort of the automobile is improved.
With the improvement of the cognition degree of a consumer on a vehicle, the driving feeling of the automobile is more concerned, particularly the NVH performance of the vehicle and the influence of the torque fluctuation of an engine on a transmission system. The traditional vehicle type uses a double-mass flywheel, but the cost is higher. The low-cost torsional vibration damper can now reach a good balance point in terms of balancing the torsional moment fluctuations and the costs. However, when the torsional damper is actually used, the performance of the engine in a low rotation speed range of 1100rpm to 1500rpm is poor due to the performance limit of the conventional torsional damper, and the noise and torsional vibration in the vehicle are obvious. There is therefore room for improvement in the performance of prior art torsional dampers.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides the rubber composition of the automotive torsional damper and the processing technology thereof, the rubber composition has excellent durability and vibration absorption performance, effectively solves the problem of low-speed torsional vibration or noise in an automobile, ensures that the product is intact after 1000 ten thousand fatigue lives, has the inherent frequency variation of less than or equal to 5 percent after fatigue and has the residual unbalance of less than 1g.cm at the rotating speed of 1000 r/min.
In order to achieve the purpose, the invention provides the following technical scheme:
a rubber composition of a torsion damper for an automobile is characterized in that: the composition is prepared from the following raw materials in parts by weight:
preferably, the active agent is zinc oxide and stearic acid.
Preferably, the N-isopropyl-N' -phenyl-p-phenylenediamine is an anti-aging agent 4010NA, and the 2, 2, 4-trimethyl-1, 2-dihydroquinoline polymer is an anti-aging agent RD.
Preferably, the ethylene propylene diene monomer rubber is oil-extended rubber KEP980 and non-oil-extended rubber 512F.
Preferably, the resin is RX-80 resin.
Preferably, the reinforcing agent is a mixture of fast extrusion furnace black N-550, white carbon 822MP and silica GW-9.
Preferably, the plasticizer is paraffin oil 2280.
Preferably, the cross-linking agent is S-80 and DCP and Vulcreen KA 9188.
Preferably, the promoter is a mixture of a promoter TMTD and a promoter CZ.
A processing technology of rubber of a torsion damper for an automobile is characterized by comprising the following steps: the method comprises the following steps:
s1: first-stage rubber mixing:
s1.1: mixing by an internal mixer, namely putting the ethylene propylene diene monomer and a small part of reinforcing agent into the internal mixer in required use amount, wherein the mixing time is 40 seconds;
s1.2: the anti-aging agent, the activator and part of the reinforcing agent are put into an internal mixer together for kneading for 2-3min, the temperature of an internal mixing chamber is controlled at 140 ℃ under the condition of 110-;
s1.3: adding the rest reinforcing agent and the weighed plasticizer into an internal mixer for kneading for 4-6min, lifting the top plug once midway, keeping for 10 seconds, then pressing the top plug, transferring the rubber material to an open mill for thin passing for three times after the kneading is finished, and controlling the roll spacing to be 0-1 mm; then, thickening is carried out, the roller spacing is controlled to be 2-3mm, and pieces are taken out after the sizing material wraps the left and right cutting knives of the roller twice respectively;
s2: first parking:
s2.1: placing the rubber compound finished in the steps into a thermostatic chamber for standing for more than 4 hours;
s3: second-stage sulfurization:
s3.1, putting a mixed section of material into an internal mixer, kneading and softening for 30-40 seconds, then pouring a second section of small material cross-linking agent and an accelerant into the internal mixer for kneading, wherein the kneading temperature is 65-85 ℃, the kneading time is 3-4min, lifting a top bolt in midway to turn over the rubber material once, then transferring the rubber material to an open mill, adjusting the temperature of a roller to be less than 60 ℃, adjusting the roller distance to be the tightest, performing thin passing for 3 times, adjusting the roller distance to be 3-4mm, and discharging the rubber material twice by a left cutter and a right cutter;
s4: and (5) parking for the second time:
s4.1: and (3) placing the rubber compound finished through the steps into a thermostatic chamber for detection for a standing time of more than 12 hours, and using the rubber compound after the rubber compound is qualified.
The invention has the advantages that: the optimal synergistic effect is achieved by combining the formula and the process. The obtained rubber has the excellent characteristics of low hardness, low modulus loss, aging resistance and fatigue resistance; meanwhile, the variety of materials used in the formula is small, and the production process is convenient to operate. The stress strain of the product is repeated and ceaseless in the rubber fatigue process, the cross-linked bond is broken, the consumed energy is converted into heat energy, the rubber strength and the elastic modulus are reduced, and the product is easy to damage at the stress concentration position. However, a vulcanization system matched with Vulcure KA9188 forms a synergistic effect, a new cross-linking bond can be quickly formed after the pyrolysis of a polysulfide bond, the rubber strength is maintained, a cross-linking network is stabilized, and the service life of the product is greatly prolonged.
Detailed Description
A rubber composition of a torsion damper for an automobile is prepared from the following raw materials in parts by weight:
the ethylene propylene diene monomer is prepared by mixing oil-extended rubber KEP980 and non-oil-extended rubber 512F, an inorganic active agent is zinc oxide, an organic active agent is stearic acid, N-isopropyl-N' -phenyl-p-phenylenediamine, 2, 4-trimethyl-1, 2-dihydroquinoline polymer is an anti-aging agent 4010NA and an anti-aging agent RD respectively, resin is RX-80, reinforcing agents are fast extrusion furnace black N-550, white carbon black 822MP and silica GW-9, a plasticizer is paraffin oil 2280, a cross-linking agent is S-80, DCP and Vulen curKA 9188, and an accelerator is CZ and TMTD.
The processing technology of the rubber composition of the torsion damper for the automobile is characterized by comprising the following four stages:
s1: first-stage rubber mixing:
s1.1: mixing by an internal mixer, namely putting the ethylene propylene diene monomer and a small part of reinforcing agent into the internal mixer in required use amount, wherein the mixing time is 40 seconds;
s1.2: the anti-aging agent, the activator and part of the reinforcing agent are put into an internal mixer together for kneading for 2-3min, the temperature of an internal mixing chamber is controlled at 140 ℃ under the condition of 110-;
s1.3: adding the rest reinforcing agent and the weighed plasticizer into an internal mixer for kneading for 4-6min, lifting the top plug once midway, keeping for 10 seconds, then pressing the top plug, transferring the rubber material to an open mill for thin passing for three times after the kneading is finished, and controlling the roll spacing to be 0-1 mm; then, thickening is carried out, the roller spacing is controlled to be 2-3mm, and pieces are taken out after the sizing material wraps the left and right cutting knives of the roller twice respectively;
s2: first parking:
s2.1: placing the rubber compound finished in the steps into a thermostatic chamber for standing for more than 4 hours;
s3: second-stage sulfurization:
s3.1: putting a section of mixed materials into an internal mixer, kneading and softening for 30-40 seconds, then pouring two sections of small material cross-linking agents and accelerators into the internal mixer for kneading, wherein the kneading temperature is 65-85 ℃, the kneading time is 3-4min, lifting a top bolt in the midway to turn over the rubber materials once, then transferring the rubber materials to an open mill, the roller temperature is less than 60 ℃, the roller distance is adjusted to be tightest, performing thin passing for 3 times, the roller distance is adjusted to 3-4mm, and discharging the sheets twice by a left cutter and a right cutter;
s4: and (5) parking for the second time:
s4.1: and (3) placing the rubber compound finished through the steps into a thermostatic chamber for detection for a standing time of more than 12 hours, and using the rubber compound after the rubber compound is qualified.
In order to make the invention more comprehensible, preferred embodiments are described in detail below:
example 1:
a rubber composition of a torsion damper for an automobile is prepared from the following raw materials in parts by weight:
example 2:
a rubber composition of a torsion damper for an automobile is prepared from the following raw materials in parts by weight:
example 3:
a rubber composition of a torsion damper for an automobile is prepared from the following raw materials in parts by weight:
example 4:
a rubber composition of a torsion damper for an automobile is prepared from the following raw materials in parts by weight:
the following table shows the parameter comparison of the rubber materials obtained in examples 1 to 4 with the rubber materials of the prior comparative examples:
the following are the results of the torsional damper stage durability test data and the prior art torsional damper stage durability test data for the rubber materials obtained in examples 1-4:
the optimal synergistic effect is achieved by combining the formula and the process. The obtained rubber has the excellent characteristics of low hardness, low modulus loss, aging resistance and fatigue resistance; meanwhile, the variety of materials used in the formula is small, and the production process is convenient to operate. The stress strain of the product is repeated and ceaseless in the rubber fatigue process, the cross-linked bond is broken, the consumed energy is converted into heat energy, the rubber strength and the elastic modulus are reduced, and the product is easy to damage at the stress concentration position. However, a vulcanization system matched with Vulcure KA9188 forms a synergistic effect, a new cross-linking bond can be quickly formed after the pyrolysis of a polysulfide bond, the rubber strength is kept, and a cross-linking network is stabilized, so that the service life of the torsion damper can be greatly prolonged based on the characteristics of a rubber material.
The rubber product prepared by the invention has excellent vibration absorption function and fatigue resistance, effectively solves the problems of low-speed torsional vibration or noise in a vehicle, does not damage and does not delaminate rubber after 1000 ten thousand fatigue lives, and the inherent frequency variation of the product after fatigue is less than or equal to 5 percent.
Unless otherwise specified, in the present invention, if there is an orientation or positional relationship indicated by terms such as "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., which is the orientation or positional relationship shown, it is only for convenience of describing the present invention and simplifying the description, but it is not intended to indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore the terms describing the orientation or positional relationship in the present invention are only used for exemplary illustration and are not to be construed as limiting the patent, and the specific meaning of the above terms will be understood by those of ordinary skill in the art according to the specific circumstances.
Unless expressly stated or limited otherwise, the terms "disposed," "connected," and "connected" are used broadly and encompass, for example, being fixedly connected, detachably connected, or integrally connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments, and all technical solutions belonging to the idea of the present invention belong to the protection scope of the present invention. It should be noted that modifications and embellishments within the scope of the invention may occur to those skilled in the art without departing from the principle of the invention, and are considered to be within the scope of the invention.
Claims (10)
1. A rubber composition of a torsion damper for an automobile is characterized in that: the composition is prepared from the following raw materials in parts by weight:
2. the rubber composition for a torsional vibration damper for an automobile as set forth in claim 1, wherein: the active agent is zinc oxide or stearic acid.
3. The rubber composition for a torsional vibration damper for an automobile as set forth in claim 1, wherein: the N-isopropyl-N' -phenyl-p-phenylenediamine is an anti-aging agent 4010NA, and the 2, 2, 4-trimethyl-1, 2-dihydroquinoline polymer is an anti-aging agent RD.
4. The rubber composition for a torsional vibration damper for an automobile as set forth in claim 1, wherein: the ethylene propylene diene monomer rubber is oil-extended rubber KEP980 and non-oil-extended rubber 512F which are mixed for use.
5. The rubber composition for a torsional vibration damper for an automobile as set forth in claim 1, wherein: the resin is RX-80 resin.
6. The rubber composition for a torsional vibration damper for an automobile as set forth in claim 1, wherein: the reinforcing agent is formed by mixing fast extrusion furnace black N-550, white carbon black 822MP and silica GW-9.
7. The rubber composition for a torsional vibration damper for an automobile as set forth in claim 1, wherein: the plasticizer is paraffin oil 2280.
8. The rubber composition for a torsional vibration damper for an automobile as set forth in claim 1, wherein: the cross-linking agent is S-80 mixed with DCP and Vulcreen KA9188 for use.
9. The rubber composition for a torsional vibration damper for an automobile as set forth in claim 1, wherein: the accelerant is formed by mixing an accelerant TMTD and an accelerant CZ.
10. A processing technology of rubber of a torsion damper for an automobile is characterized by comprising the following steps: the method comprises the following steps:
s1: first-stage rubber mixing:
s1.1: mixing by an internal mixer, namely putting the ethylene propylene diene monomer and a small part of reinforcing agent into the internal mixer in required use amount, wherein the mixing time is 40 seconds;
s1.2: the anti-aging agent, the activator and part of the reinforcing agent are put into an internal mixer together for kneading for 2-3min, the temperature of an internal mixing chamber is controlled at 140 ℃ under the condition of 110-;
s1.3: adding the rest reinforcing agent and the weighed plasticizer into an internal mixer for kneading for 4-6min, lifting the top plug once midway, keeping for 10 seconds, then pressing the top plug, transferring the rubber material to an open mill for thin passing for three times after the kneading is finished, and controlling the roll spacing to be 0-1 mm; then, thickening is carried out, the roller spacing is controlled to be 2-3mm, and pieces are taken out after the sizing material wraps the left and right cutting knives of the roller twice respectively;
s2: first parking:
s2.1: placing the rubber compound finished in the steps into a thermostatic chamber for standing for more than 4 hours;
s3: second-stage sulfurization:
s3.1, putting a mixed section of material into an internal mixer, kneading and softening for 30-40 seconds, then pouring a second section of small material cross-linking agent and an accelerant into the internal mixer for kneading, wherein the kneading temperature is 65-85 ℃, the kneading time is 3-4min, lifting a top bolt in midway to turn over the rubber material once, then transferring the rubber material to an open mill, adjusting the temperature of a roller to be less than 60 ℃, adjusting the roller distance to be the tightest, performing thin passing for 3 times, adjusting the roller distance to be 3-4mm, and discharging the rubber material twice by a left cutter and a right cutter;
s4: and (5) parking for the second time:
s4.1: and (3) placing the rubber compound finished through the steps into a thermostatic chamber for detection for a standing time of more than 12 hours, and using the rubber compound after the rubber compound is qualified.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111269097.2A CN113861574A (en) | 2021-10-29 | 2021-10-29 | Rubber composition of torsion damper for automobile and processing technology thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111269097.2A CN113861574A (en) | 2021-10-29 | 2021-10-29 | Rubber composition of torsion damper for automobile and processing technology thereof |
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| Publication Number | Publication Date |
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| CN113861574A true CN113861574A (en) | 2021-12-31 |
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| CN202111269097.2A Pending CN113861574A (en) | 2021-10-29 | 2021-10-29 | Rubber composition of torsion damper for automobile and processing technology thereof |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102775685A (en) * | 2012-06-25 | 2012-11-14 | 安徽中鼎减震橡胶技术有限公司 | Torsional damper rubber for engine and manufacturing process of torsional damper rubber |
| CN104877238A (en) * | 2015-05-08 | 2015-09-02 | 柳州日高橡胶制品有限责任公司 | Rubber for locomotive torsion damper |
| CN110997788A (en) * | 2017-08-02 | 2020-04-10 | 株式会社普利司通 | Rubber composition for vibration-proof rubber and vibration-proof rubber for vehicle |
-
2021
- 2021-10-29 CN CN202111269097.2A patent/CN113861574A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102775685A (en) * | 2012-06-25 | 2012-11-14 | 安徽中鼎减震橡胶技术有限公司 | Torsional damper rubber for engine and manufacturing process of torsional damper rubber |
| CN104877238A (en) * | 2015-05-08 | 2015-09-02 | 柳州日高橡胶制品有限责任公司 | Rubber for locomotive torsion damper |
| CN110997788A (en) * | 2017-08-02 | 2020-04-10 | 株式会社普利司通 | Rubber composition for vibration-proof rubber and vibration-proof rubber for vehicle |
Non-Patent Citations (3)
| Title |
|---|
| 严忠敏: "新型橡胶补强剂-RX80树脂", 《江苏化工》 * |
| 黄祖长，等: "试验产品Vulcuren KA9188——一种二烯橡胶用的新型双功能交联剂" * |
| 黄祖长: "试验产品Vulcuren KA9188——一种二烯橡胶用的新型双功能交联剂", 《橡胶参考资料》 * |
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