CN102558621A - Low-dynamic-multiplying-power and high-attenuation rubber material and preparation method thereof - Google Patents
Low-dynamic-multiplying-power and high-attenuation rubber material and preparation method thereof Download PDFInfo
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- CN102558621A CN102558621A CN2011104337805A CN201110433780A CN102558621A CN 102558621 A CN102558621 A CN 102558621A CN 2011104337805 A CN2011104337805 A CN 2011104337805A CN 201110433780 A CN201110433780 A CN 201110433780A CN 102558621 A CN102558621 A CN 102558621A
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Abstract
The invention discloses a low-dynamic-multiplying-power and high-attenuation rubber material and a preparation method thereof. In a formula of the rubber material, trans 1,4 polyisoprene (TPI) is used as an assistant of the low-dynamic-multiplying-power and high-attenuation rubber material, and other assistants such as carbon black, a promoting agent, a vulcanizing agent, an anti-aging agent, an activating agent and an operating assistant are unchangeable. A selected rubber matrix is natural rubber (NR), and the low-dynamic-multiplying-power and high-attenuation rubber material is prepared by using the TPI as a functional rubber assistant through a common rubber processing process and equipment, and can be used in the field of rubber damping; and the damping effect of the low-dynamic-multiplying-power and high-attenuation rubber material is improved.
Description
Technical field
The present invention relates to a kind of elastomeric material, be specially a kind of low moving multiplying power, high decay elastomeric material, and the preparation method of this elastomeric material.
Technical background
For rubber damping product, the function that requires to have support, damping usually and press down three aspects of shake, support function; Be used to support weight, for this reason, must guarantee to have enough static spring constant Ks as object; Shock-absorbing function; Have enough low dynamic spring constant Kd with respect to vibrational frequency as object, but the shake function, the amplification of conductivity when unavoidably resonating in order to suppress generation as far as possible; Should have an enough height decay property, but this three conflicting mutual restriction often.For shock-absorbing function, Kd/Ks (moving multiplying power) is more little good more, for pressing down the shake function; Decay property is high more good more; Adopt high decay property elastomeric material to improve and press down the shake effect, but for common elastomeric material, along with the increase of its decay property; Phenomenon inevitably appears increasing in its moving multiplying power; Thereby influence its shock-absorbing function, along with to the improving constantly of the noise control and shockproof requirement of Motor vehicles, office automatic facility and household electronic products, the requirement of rubber damping product is also improved constantly.Therefore from improving this angle of yielding rubber performance, have low moving multiplying power concurrently and just become real requirement with high decay property.
Can be big in the tree elastomer NR, two identical atoms of electronegativity of cis isomerism are in the homonymy of molecule, and dipole moment is bigger, and kindliness is better, and hysteresis loss is little, and elasticity is higher, process anti-vibration article with it and have low moving multiplying power, but decay property is also lower simultaneously.Trans 1,4 TR 301 TPI atomic arrangement is symmetry relatively, and atom and atomic group that electronegativity is different come the same side, and dipole moment is less; Be prone to crystallization, kindliness is relatively poor, with its by a certain percentage with tree elastomer and usefulness, the elastomeric material of preparation is after sulfuration; When receiving external impacts or low-frequency vibration, elastomeric material will have higher decay property, better presses down the shake effect thereby can play; When high frequency was vibrated, the crystalline texture of trans 1,4 TR 301 TPI was destroyed; Thereby improved the kindliness of molecule, the hysteresis loss of elastomeric material has been reduced, thereby obtain low moving multiplying power.
Summary of the invention
The purpose of this invention is to provide a kind of low moving multiplying power, high decay elastomeric material and preparation method thereof, it is functional agent that this method adopts trans 1,4 TR 301 TPI, through the common rubber processing processing unit, prepares the elastomeric material of low moving multiplying power, high decay.
The objective of the invention is to realize through following technical scheme:
A kind of low moving multiplying power, high decay elastomeric material comprise:
A, 60-90 part tree elastomer are as sill;
B, 10-40 part are for realizing low trans 1, the 4 TR 301 TPI that moves the function of multiplying power, high decay of this elastomeric material;
C and other auxiliary agents.
Wherein, described rubber base-material is tree elastomer NR;
Trans 1, the 4 TR 301 TPI of described uncured is characterized as: trans content >=97%; Mooney viscosity 60-80; Tensile strength >=25MPa; About 60 ℃ of fusing point.
Described other auxiliary agents comprise carbon black, promotor, vulcanizing agent, anti-aging agent, promoting agent and processing material, press the composition of following weight ratio:
Wherein, described carbon black is selected high wearable carbon black N330 for use; Promotor is selected a kind of in methyl thiurams and the thiazoles for use, is more preferably one or both combinations among TMTD and the DM; Vulcanizing agent is a sulphur; Anti-aging agent is selected quinoline and the combination of two amines for use; Like RD and 4010NA; Promoting agent is selected from zinc oxide and Triple Pressed Stearic Acid, and processing material is an aromatic hydrocarbon oil.
The preparation method of above-mentioned elastomeric material is following:
1) with trans 1,4 TR 301 TPI in general rubber preparing device, in 60-100 ℃ of TR, plasticated 2-3 minute, again with tree elastomer NR blend;
2) prepare rubber unvulcanizate by common refining gluing method;
3) rubber unvulcanizate was parked more than 8 hours, according to common rubber vulcanization process sulfuration.
The invention has the beneficial effects as follows: the present invention adopts the functional agent of trans 1,4 TR 301 TPI as rubber, adopts the common rubber processing processing unit to process; Prepared elastomeric material; Decay property is enhanced, and moving multiplying power is lowered, and complete processing is convenient and easy.
Embodiment:
Further set forth technical characterstic of the present invention below in conjunction with specific embodiment.
Embodiment 1
Tree elastomer NR90 part, 10 parts of trans 1,4 TR 301 TPI; Carbon black N33040 part, 2.5 parts in sulphur, 0.3 part of TM monex TD; 2.0 parts of altaxs, 1.5 parts of anti-aging agent RDs, 2.0 parts of antioxidant 4010NAs; 5.0 parts of promoting agents (zinc oxide), 2.0 parts of promoting agents (Triple Pressed Stearic Acid SA), 5.0 parts of processing material aromatic hydrocarbon oil.
Manufacture craft comprises the steps and processing condition: the first step, trans 1,4 TR 301 TPI in general rubber preparing device, was plasticated 2-3 minute in 60-100 ℃ of TR, again with tree elastomer NR blend; In second step, prepare rubber unvulcanizate by common refining gluing method; In the 3rd step, rubber unvulcanizate was parked more than 8 hours, according to common rubber vulcanization process sulfuration.
The material technology of embodiment 2-6 is with embodiment 1.
Embodiment 2
Tree elastomer NR80 part, 20 parts of trans 1,4 TR 301 TPI; Carbon black N33040 part, 2.5 parts in sulphur, 0.3 part of TM monex TD; 2.0 parts of altaxs, 1.5 parts of anti-aging agent RDs, 2.0 parts of antioxidant 4010NAs; 5.0 parts of promoting agents (zinc oxide), 2.0 parts of promoting agents (Triple Pressed Stearic Acid SA), 5.0 parts of processing material aromatic hydrocarbon oil.
Embodiment 3
Tree elastomer NR70 part, 30 parts of trans 1,4 TR 301 TPI; Carbon black N33040 part, 2.5 parts in sulphur, 0.3 part of TM monex TD; 2.0 parts of altaxs, 1.5 parts of anti-aging agent RDs, 2.0 parts of antioxidant 4010NAs; 5.0 parts of promoting agents (zinc oxide), 2.0 parts of promoting agents (Triple Pressed Stearic Acid SA), 5.0 parts of processing material aromatic hydrocarbon oil.
Embodiment 4
60 parts of tree elastomer NR, 40 parts of trans 1,4 TR 301 TPI; Carbon black N33040 part, 2.5 parts in sulphur, 0.3 part of TM monex TD; 2.0 parts of altaxs, 1.5 parts of anti-aging agent RDs, 2.0 parts of antioxidant 4010NAs; 5.0 parts of promoting agents (zinc oxide), 2.0 parts of promoting agents (Triple Pressed Stearic Acid SA), 5.0 parts of processing material aromatic hydrocarbon oil.
Embodiment 5
Tree elastomer NR60 part, 40 parts of trans 1,4 TR 301 TPI; Carbon black N33040 part, 2.0 parts in sulphur, 0.2 part of TM monex TD; 2.5 parts of altaxs, 2.0 parts of anti-aging agent RDs, 1.5 parts of antioxidant 4010NAs; 5.0 parts of promoting agents (zinc oxide), 1.5 parts of promoting agents (Triple Pressed Stearic Acid SA), 4.0 parts of processing material aromatic hydrocarbon oil.
Embodiment 6
80 parts of tree elastomer NR, 20 parts of trans 1,4 TR 301 TPI; Carbon black N33020 part, 2.0 parts in sulphur, 0.4 part of TM monex TD; 2.5 parts of altaxs, 2.0 parts of anti-aging agent RDs, 1.5 parts of antioxidant 4010NAs; 4.0 parts of promoting agents (zinc oxide), 2.0 parts of promoting agents (Triple Pressed Stearic Acid SA), 5.0 parts of processing material aromatic hydrocarbon oil.
Comparative Examples 1
100 parts of tree elastomer NR, carbon black N33040 part, 2.5 parts in sulphur, 0.3 part of TM monex TD, 2 parts of altaxs, 1.5 parts of anti-aging agent RDs, 2 parts of antioxidant 4010NAs, 5 parts of promoting agents (zinc oxide), 2 parts of promoting agents (Triple Pressed Stearic Acid SA), 5 parts of processing material aromatic hydrocarbon oil.
The first step in general rubber preparing device, is plasticated tree elastomer NR 2-3 minute in 60-100 ℃ of TR; In second step, prepare rubber unvulcanizate by common refining gluing method; In the 3rd step, rubber unvulcanizate was parked more than 8 hours, according to common rubber vulcanization process sulfuration.
The material technology of Comparative Examples 2-3 is with Comparative Examples 1.
Comparative Examples 2
100 parts of tree elastomer NR, carbon black N33040 part, carbon black N33040 part; 2.0 parts in sulphur, 0.2 part of TM monex TD, 2.5 parts of altaxs; 2.0 parts of anti-aging agent RDs, 1.5 parts of antioxidant 4010NAs, 5.0 parts of promoting agents (zinc oxide); 1.5 parts of promoting agents (Triple Pressed Stearic Acid SA), 4.0 parts of processing material aromatic hydrocarbon oil.
Comparative Examples 3
100 parts of tree elastomer NR, carbon black N33040 part, carbon black N33020 part; 2.0 parts in sulphur, 0.4 part of TM monex TD, 2.5 parts of altaxs; 2.0 parts of anti-aging agent RDs, 1.5 parts of antioxidant 4010NAs, 4.0 parts of promoting agents (zinc oxide); 2.0 parts of promoting agents (Triple Pressed Stearic Acid SA), 5.0 parts of processing material aromatic hydrocarbon oil.
Performance evaluation
According to the batching of the prescription in the table 1, manufacture craft comprises the steps and processing condition: the first step, trans 1,4 TR 301 TPI in general rubber preparing device, was plasticated 2-3 minute 60-100 ℃ of TR, again with tree elastomer NR blend; In second step, prepare rubber unvulcanizate by common refining gluing method; The 3rd step, rubber unvulcanizate was parked more than 8 hours, in 150 ℃ of sulfurations 15 minutes, the physical and mechanical properties of gained cross-linked rubber was listed in the table below 2 according to common rubber vulcanization process.
Table 1 embodiment 1-6 and Comparative Examples 1-3 material prescription
Table 2 embodiment 1-6 and Comparative Examples 1-3 material property
From table 2, in embodiment 1-4 and Comparative Examples 1, embodiment 5 and Comparative Examples 2 and embodiment 6 and the Comparative Examples 3, after trans 1,4 TR 301 TPI and tree elastomer NR also use; With respect to the prescription that does not add TPI, the hardness of cross-linked rubber increases, and tensile strength reduces; Compression set slightly improves, and simultaneously, 60 ℃ of following tg δ (decay property) are worth rising; The Kd/Ks of 20Hz (moving multiplying power) reduces, and the TPI addition is big more, and moving multiplying power and pad value change obvious more.Trans 1,4 TR 301 TPI and tree elastomer NR are described and hang down moving multiplying power, high decay property characteristic with cross-linked rubber is had.
Claims (8)
1. one kind low is moved multiplying power, high decay elastomeric material, it is characterized in that: comprising:
A, 60-90 part tree elastomer are as sill;
B, 10-40 part are for realizing low trans 1, the 4 TR 301 TPI that moves the function of multiplying power, high decay of this elastomeric material;
C and other auxiliary agents.
2. low moving multiplying power according to claim 1, high decay elastomeric material, it is characterized in that: described tree elastomer sill is tree elastomer NR;
3. low moving multiplying power according to claim 1, high decay elastomeric material, it is characterized in that: described trans 1,4 TR 301 TPI is characterized as: trans content >=97%; Mooney viscosity 60-80; Tensile strength >=25MPa; About 60 ℃ of fusing point.
4. low moving multiplying power according to claim 1, high decay elastomeric material, it is characterized in that: described other auxiliary agents comprise carbon black, promotor, vulcanizing agent, anti-aging agent, promoting agent and processing material, press the composition of following weight ratio:
5. low moving multiplying power according to claim 4, high decay elastomeric material, it is characterized in that: described carbon black is selected high wearable carbon black N330 for use; Promotor is selected one or both combinations in methyl thiurams and the thiazoles for use; Vulcanizing agent is a sulphur; Anti-aging agent is selected quinoline and the combination of two amines for use; Promoting agent is selected from zinc oxide and Triple Pressed Stearic Acid; Processing material is an aromatic hydrocarbon oil.
6. low moving multiplying power according to claim 4, high decay elastomeric material, it is characterized in that: described promotor is selected one or both combinations among TMTD and the DM for use.
7. low moving multiplying power according to claim 4, high decay elastomeric material, it is characterized in that: described anti-aging agent is selected RD and 4010NA for use.
8. one kind prepares the described low method of moving multiplying power, high decay elastomeric material of claim 1, and it is characterized in that: its step is following:
1) with trans 1,4 TR 301 TPI in general rubber preparing device, in 60-100 ℃ of TR, plasticated 2-3 minute, again with tree elastomer NR blend;
2) prepare rubber unvulcanizate by common refining gluing method;
3) rubber unvulcanizate was parked more than 8 hours, according to common rubber vulcanization process sulfuration.
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Cited By (5)
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| CN103951855A (en) * | 2014-04-02 | 2014-07-30 | 山东美晨科技股份有限公司 | TPI raw material for preparing improved rubber with low abrasion and long bending life |
| CN105348586A (en) * | 2015-12-16 | 2016-02-24 | 济南昊泽环保科技有限公司 | Deflection resistant damping rubber |
| CN105504378A (en) * | 2015-12-30 | 2016-04-20 | 中国兵器工业集团第五三研究所 | TPI modified natural rubber |
| CN106146921A (en) * | 2015-04-28 | 2016-11-23 | 安徽华润仪表线缆有限公司 | A kind of natural rubber cushion blocking material and preparation method thereof |
| CN106800678A (en) * | 2017-01-13 | 2017-06-06 | 湖北森鑫汽车零部件有限公司 | A kind of refining process of the fatigue-resisting rubber material that vehicle vibration damping element is used |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103951855A (en) * | 2014-04-02 | 2014-07-30 | 山东美晨科技股份有限公司 | TPI raw material for preparing improved rubber with low abrasion and long bending life |
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| CN105348586A (en) * | 2015-12-16 | 2016-02-24 | 济南昊泽环保科技有限公司 | Deflection resistant damping rubber |
| CN105504378A (en) * | 2015-12-30 | 2016-04-20 | 中国兵器工业集团第五三研究所 | TPI modified natural rubber |
| CN106800678A (en) * | 2017-01-13 | 2017-06-06 | 湖北森鑫汽车零部件有限公司 | A kind of refining process of the fatigue-resisting rubber material that vehicle vibration damping element is used |
| CN106800678B (en) * | 2017-01-13 | 2018-09-11 | 湖北森鑫汽车零部件有限公司 | A kind of refining process for the fatigue-resisting rubber material that vehicle vibration damping element uses |
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