CN104497366B - Shock mount high-intensity high-damping rubber composite - Google Patents
Shock mount high-intensity high-damping rubber composite Download PDFInfo
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- CN104497366B CN104497366B CN201410677100.8A CN201410677100A CN104497366B CN 104497366 B CN104497366 B CN 104497366B CN 201410677100 A CN201410677100 A CN 201410677100A CN 104497366 B CN104497366 B CN 104497366B
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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
- C08L7/00—Compositions of natural rubber
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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
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
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Abstract
The invention belongs to field of rubber technology, disclose high-damping rubber composite under a kind of shock mount big strain of room temperature low frequency.Formula by mass is: natural rubber components 100, CNT component 7～12, carbon black component 20～40, Petropols component 7～12, plasticizer components 5～15, activator component 4～7, promoter component 0.5～1.5, vulcanizing agent component 1～2, age resistor component 2～4, anti-recovery agent component 0.5～1.5.CNT is combined in addition rubber with Petropols by the present invention first as nanometer damping material, and rubber damping capacity under seismic condition i.e. low frequency (1Hz) greatly strain (50%～100%) is greatly improved.At room temperature, strain is 50%～100% to this composite, when frequency is 1Hz, and fissipation factor tan δ > 0.3；Hot strength >=10MPa, elongation at break >=500% simultaneously, has reached the national standard requirement to the physical and mechanical properties of shock isolating pedestal elastomeric material.
Description
Technical field
The invention belongs to field of rubber technology, relate generally to high-damping rubber under the shock mount big strain of room temperature low frequency multiple
Condensation material.
Background technology
Earthquake to the people's lives and property injury greatly, especially China be positioned at circum-Pacific seismic belt and Eurasian earthquake zone it
Between, therefore earthquake happens occasionally, and earthquake magnitude is higher, and destructive power is big.The shock resistance improving building is to resist eaerthquake damage
Highly important approach, shock insulation based on current most widely used method, i.e. arrange between building or bridge and ground
There is the reliable shock mitigation system of safe enough to increase malformation ability, and absorb vibration energy to resist earthquake.State at present
The building shock mount of interior main application has lead core rubber support, laminated rubber bearing and high-damp rubber support three class.
Lead core rubber support absorbs dissipation vibration energy by the detrusion of lead for retractable pencil, and damping capacity is good, and susceptor design flexibility is big, resistance to
Property is good for a long time, can resist micro-vibration, and favourable to controlling wind reaction, but its automatic recovery ability is more weak, shock insulation frequency band is narrow, Er Qie
If occurring lead for retractable pencil to expose and can surrounding environment be caused serious harm during use；Laminated rubber bearing is by Thin rubber plate and Bao Gang
The staggered overlapping of plate mutually sulfuration bonding form, and have the biggest vertical rigidity, smaller horizontal rigidity, but typically select
Natural rubber damping capacity poor；The shape of high-damp rubber support is identical with laminated rubber bearing, by rubber itself
High damping characteristic absorbs dissipation vibration energy, and automatic recovery ability is strong, the shortcoming overcoming board-like rubber and lead core rubber support, belongs to
In up-to-date research direction, wherein high-damping rubber material is prepared as one of difficult point designing high-damp rubber support.Rubber is led
Natural rubber in territory has stretch crystallization characteristic, is susceptible to bigger deformation and has higher resistance of failure, but its
Body damping capacity is poor.And by realizing micron-scale phase separation, the interaction force increased between rubber macromolecule, or in continuous phase
Middle introducing high-damping phase or interface friction can improve the damping capacity of elastomeric material mutually.
Summary of the invention
For existing shock mount or damping capacity difference or the problem polluting environment, the invention provides a kind of shock mount
With high-damping rubber composite under the big strain of room temperature low frequency, this material not only physical and mechanical properties is good, meets shock isolating pedestal
With the requirement of elastomeric material, and under seismic condition i.e. low frequency (1Hz) greatly strain (50%～100%), there is good damping
Performance.The method used is as the oil tree that nanometer improvement of damping material parallel connection cooperation is plasticising damping material using CNT
Fat is added in natural rubber by mechanical blending mode, and adds other fillers, prepares one and has high damping and high-strength concurrently
Degree, rubber composite, for the preparation of bridge or building contour performance shock mount.
High-damping rubber composite under a kind of shock mount big strain of room temperature low frequency that the present invention provides, including following
The component of weight portion: natural rubber components 100, CNT component 7～12, carbon black component 20～40, Petropols component 7～
12, plasticizer components 5～20, activator component 4～7, promoter component 1～3, vulcanizing agent component 1～2, age resistor component 2～
4, anti-recovery agent component 0.5～1.5.
Its additional technical feature is: described CNT is the one in SWCN, multi-walled carbon nano-tubes or several
Kind, length of carbon nanotube is 20 μm～200 μm, a diameter of 1～20nm；Described carbon black is the one in N770, N774 or whole；
Described Petropols are that produced by petroleum cracking alkene, polymerisable unsaturated olefin accessory substance is urged through ion or free radical
The thermoplastic resin of change method synthesis, including the one or several in C5 Petropols, C9 Petropols or C5/9 copolymerized petroleum resin
Kind；Plasticizer is coumarone indene resin, and vulcanizing agent is sulphur, and activating agent is stearic acid and zinc oxide, and accelerator is curing tetramethyl
Base thiuram (TT), dibenzothiazyl disulfide (DM), N cyclohexyl 2 benzothiazole sulfenamide (CZ), anti-recovery
Agent is that N, a N '-aminomethyl phenyl is double (3-methylmaleimido) (PK900).
Under a kind of shock mount big strain of room temperature low frequency that the present invention provides, high-damping rubber composite is natural rubber
In matrix body dispersed CNT quantitatively (as shown in Figure 1), owing to CNT has bigger draw ratio, good
Good mechanical performance, and a diameter of Nano grade, can form filler network structure, the most not only in natural rubber matrix
Can play the effect strengthening natural rubber, and CNT and CNT, CNT and rubber in deformation process
There is sliding and friction between strand, thus significantly improve the damping capacity of natural rubber/carbon nano tube compound material system.
Under a kind of shock mount big strain of room temperature low frequency that the present invention provides, high-damping rubber composite is natural rubber
Having disperseed quantitative Petropols (as shown in Figure 1) in matrix body, owing to Petropols are small-molecule substance, itself has relatively
High viscosity, adds in natural rubber, can not only significantly improve the damping capacity of system, and can play the work of plasticising
With, reduce the stretching strength of damping rubber.Research, it was demonstrated that damping shock absorption elastomeric material has relatively low stretching strength, is being met
To bigger deformation can be produced during earthquake, the effect of the shock insulation of damping shock absorption rubber, damping more can be played.
Under a kind of shock mount big strain of room temperature low frequency that the present invention provides, its advantage of high-damping rubber composite exists
Damping capacity under the big strain of seismic condition i.e. low frequency is good, and room temperature, 1Hz frequency, strain are loss when 50%～100%
Factor t an δ > 0.3.And there is higher hot strength and elongation at break, survey according to GB/T 528-2009 method of testing
: hot strength >=10MPa, elongation at break >=500%, meet the national standard physical machine to shock isolating pedestal elastomeric material
The requirement of tool performance.
Accompanying drawing explanation
Fig. 1 is the rubbery system structural representation of carbon nanotubes and Petropols.
Detailed description of the invention
Below by embodiment, the present invention will be further described, but example described herein is merely to illustrate and explains
The present invention, is not intended to limit the present invention, also include those skilled in the art in the range of the present invention is open, made aobvious and
The change being clear to.In embodiment, natural rubber used is cloud mark 1#, but is not limited to this；In embodiment, CNT used is north
The FloTube7000 that Jing Tiannai Science and Technology Ltd. produces, purity is 87%, length > 50 μm, diameter 6～8nm, but do not limit to
In this.
Embodiment 1～3
Natural rubber/the carbon nano tube compound material of the different carbon nanotubes content of preparation, specifically comprises the following steps that
Under room temperature, 100 parts by weight of natural rubber are plasticated 1 minute in double rod mills；It is sequentially added into 5 weight portion oxidations
Zinc, 2 weight portion stearic acid, Different Weight part (7,9,12) CNT FloTube7000 (are designated as embodiment 1, embodiment respectively
2, embodiment 3), 21 parts by weight of carbon black per N774, mixing 4 minutes；Be sequentially added into 2 weight portion antioxidant 4010NAs, 1 weight portion is prevented old
Agent RD, 10 weight portion coumarone indene resins, 10 weight portion Petropols, 0.75 weight portion anti-recovery agent PK900, mixing 3 points
Clock；Be sequentially added into 0.2 weight portion tetramethylthiuram disulfide (TT), 0.3 weight portion dibenzothiazyl disulfide (DM), 0.3
Weight portion N cyclohexyl 2 benzothiazole sulfenamide (CZ), 1.5 weight portion sulphur, mixing 2 minutes；It is minimum for adjusting roll spacing
Roll spacing, continues mixing 3 minutes binder removals, prepares unvulcanized natural rubber/carbon nano tube compound material elastomeric compound, puts into 2mm mould
In tool, vulcanizing in vulcanizing press, prepare vulcanizate, curing temperature is set as 143 DEG C, and pressure is set as 15MPa, during sulfuration
Between be respectively 12 minutes, 11 minutes, 9 minutes.
Embodiment 4～6
According to the natural rubber/carbon nano tube compound material of preparation difference carbon nanotubes content in embodiment 1～3
(CNT FloTube7000 parts by weight are 9 to concrete steps, and carbon black N774 parts by weight are 21, Petropols parts by weight
Be respectively 10,20,30) elastomeric compound of the natural rubber/carbon nano tube compound material of the different Petropols weight content of preparation and
Vulcanizate.
Comparative example 1
According to the natural rubber/carbon nano tube compound material of preparation difference carbon nanotubes content in embodiment 1～3
Concrete steps (removing addition CNT and the step of Petropols, carbon black N774 parts by weight are 30) preparation does not adds carbon nanometer
Pipe and the natural rubber elastomeric compound of Petropols and vulcanizate.
According to GB GB/T 528-2009, vulcanizate produced above is carried out Mechanics Performance Testing, and elastomeric compound uses rubber
Glue Machining Analysis instrument (RPA) carries out damping capacity test, and experiment condition is: frequency 1Hz, room temperature, range of strain be 50%～
100%.
By the comparative example in table 1 and table 2 and embodiment it can be seen that the addition of CNT and Petropols is to this rubber
The damping of the composite effect of being significantly improved.When carbon nanotubes number is in the range of 7～12, fissipation factor tan δ >
0.31；When Petropols parts by weight are in the range of 10～30, fissipation factor tan δ > 0.32.To the elastomeric material for shock insulation,
Tan δ >=0.30 under big strain, it is meant that it has the damping shock absorption function of excellence.
By the embodiment in table 3 and table 4 and comparative example it can be seen that the rubber composite adding CNT is stretched by force surely
Degree increases, and elongation at break reduces；Add the damping of Petropols rubber composite to increase, stretching strength, hot strength, fracture
Percentage elongation reduces.When Petropols and carbon nanotubes number are in the range of selected, the hot strength of this rubber composite >
10MPa, elongation at break > 500%, meet the mechanical property requirements of shock mount elastomeric material.
Table 1 embodiment 1～3 and comparative example 1 in elastomeric material damping capacity
Table 2 embodiment 4～6 and comparative example 1 in elastomeric material damping capacity
Table 3 embodiment 1～3 and comparative example 1 in elastomeric material mechanical property
| Mechanical property | Comparative example 1 | Example 1 | Example 2 | Example 3 |
| 100% | 1.03±0.18 | 2.14±0.06 | 3.19±0.06 | 4.81±0.44 |
| 200% | 1.76±0.21 | 4.12±0.13 | 6.27±0.13 | 8.72±0.68 |
| 300% | 2.67±0.48 | 6.28±0.23 | 9.02±0.23 | 13.6±0.56 |
| Hot strength | 24.45±0.96 | 23.9±0.16 | 21.3±0.16 | 22.5±1.62 |
| Elongation at break | 698±27 | 625±13 | 579±13 | 522±11 |
Table 4 example 1～3 and comparative example 1 in elastomeric material mechanical property
| Mechanical property | Comparative example 1 | Example 4 | Example 5 | Example 6 |
| 100% | 1.03±0.18 | 3.19±0.06 | 2.42±0.07 | 2.05±0.04 |
| 200% | 1.76±0.21 | 6.27±0.13 | 3.97±0.07 | 3.38±0.05 |
| 300% | 2.67±0.48 | 9.02±0.23 | 5.99±0.12 | 5.02±0.07 |
| Hot strength | 24.45±0.96 | 21.3±0.16 | 13.63±0.39 | 11.25±0.65 |
| Elongation at break | 698±27 | 579±13 | 543±17 | 539±9 |
Claims (4)
1. high-damping rubber composite under the shock mount big strain of room temperature low frequency, it is characterised in that comprise following group
Point by weight: natural rubber components 100, CNT component 7～12, carbon black component 20～40, Petropols component 7～
12, plasticizer coumarone indene resin 5～15, activator component 4～7, promoter component 0.5～1.5, vulcanizing agent component 1～2, anti-
Old agent component 2～4, anti-recovery agent component 0.5～1.5.
High-damping rubber composite under the shock mount big strain of room temperature low frequency the most according to claim 1, its feature
Being: described CNT is one or more in SWCN, multi-walled carbon nano-tubes, length of carbon nanotube is 20 μm
～200 μm, a diameter of: 1～20nm.
High-damping rubber composite under the shock mount big strain of room temperature low frequency the most according to claim 1, its feature
It is: described Petropols include one or more in C5 Petropols, C9 Petropols or C5/C9 copolymerized petroleum resin.
High-damping rubber composite under the shock mount big strain of room temperature low frequency the most according to claim 1, its feature
Being: described carbon black is one or more in N770, N774, vulcanizing agent is sulphur, and activator is stearic acid and zinc oxide, promotees
Entering agent is tetramethylthiuram disulfide, dibenzothiazyl disulfide and N cyclohexyl 2 benzothiazole sulfenamide, sulfuration resistant
Agent of reverting is that N, a N '-aminomethyl phenyl is double (3-methylmaleimido).
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| CN201410677100.8A CN104497366B (en) | 2014-11-23 | 2014-11-23 | Shock mount high-intensity high-damping rubber composite |
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| CN201410677100.8A CN104497366B (en) | 2014-11-23 | 2014-11-23 | Shock mount high-intensity high-damping rubber composite |
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| CN104497366B true CN104497366B (en) | 2016-08-17 |
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| CN105384975B (en) * | 2015-10-25 | 2018-02-13 | 北京化工大学 | A kind of engineering giant embryo base portion glue material and preparation method thereof of low-heat-generation, high heat conduction |
| CN105295121B (en) * | 2015-11-07 | 2017-10-10 | 北京化工大学 | A kind of shock-absorbing bridge support high-performance rubber composite and preparation method thereof |
| CN106220907A (en) * | 2016-08-16 | 2016-12-14 | 苏州海德新材料科技股份有限公司 | A kind of high-damping shock isolating pedestal material |
| CN106188729A (en) * | 2016-08-16 | 2016-12-07 | 苏州海德新材料科技股份有限公司 | A kind of isolation bridge support material |
| CN108794899B (en) * | 2017-04-28 | 2021-08-10 | 中国石油化工股份有限公司 | Vibration damping rubber composite material and preparation method thereof |
| CN109320919A (en) * | 2018-11-09 | 2019-02-12 | 陈鹏 | A kind of shock-absorbing bridge support composite material and preparation method |
| CN112831097A (en) * | 2020-05-08 | 2021-05-25 | 宁波中乌新材料产业技术研究院有限公司 | Preparation method of modified rubber composition containing carbon black and carbon nano tubes |
| CN111499945B (en) * | 2020-05-28 | 2022-03-11 | 江苏通用科技股份有限公司 | Two-dimensional directional arrangement filling rubber composite material and preparation method thereof |
| CN115109326A (en) * | 2022-07-20 | 2022-09-27 | 威固技术（安徽）有限公司 | High-damping high-durability composite rubber |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1648161A (en) * | 2004-12-29 | 2005-08-03 | 华东理工大学 | Styrene/isoprene copolymer damping material |
| CN101831090A (en) * | 2010-04-02 | 2010-09-15 | 南京理工大学 | High-performance natural rubber vulcanized rubber of carbon-containing nano-tube, and preparation method thereof |
| CN102775659A (en) * | 2012-07-16 | 2012-11-14 | 华南理工大学 | Method for preparing wide-temperature-range high-frequency high-damping rubber materials |
| CN103205029A (en) * | 2013-05-15 | 2013-07-17 | 衡水中铁建工程橡胶有限责任公司 | Ultra-high damping rubber composite material and preparation process of rubber composite material |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004210830A (en) * | 2002-12-27 | 2004-07-29 | Jsr Corp | Elastomer composition and method for producing the same |
-
2014
- 2014-11-23 CN CN201410677100.8A patent/CN104497366B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1648161A (en) * | 2004-12-29 | 2005-08-03 | 华东理工大学 | Styrene/isoprene copolymer damping material |
| CN101831090A (en) * | 2010-04-02 | 2010-09-15 | 南京理工大学 | High-performance natural rubber vulcanized rubber of carbon-containing nano-tube, and preparation method thereof |
| CN102775659A (en) * | 2012-07-16 | 2012-11-14 | 华南理工大学 | Method for preparing wide-temperature-range high-frequency high-damping rubber materials |
| CN103205029A (en) * | 2013-05-15 | 2013-07-17 | 衡水中铁建工程橡胶有限责任公司 | Ultra-high damping rubber composite material and preparation process of rubber composite material |
Non-Patent Citations (1)
| Title |
|---|
| "碳纳米管-阻尼材料研究进展";周春华等;《济南大学学报（自然科学版）》;20091001;第23卷(第4期);第429-433页 * |
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