CN103194010B - Damping material based on blending of butyl rubber and natural rubber and preparation method thereof - Google Patents
Damping material based on blending of butyl rubber and natural rubber and preparation method thereof Download PDFInfo
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- CN103194010B CN103194010B CN201310111532.8A CN201310111532A CN103194010B CN 103194010 B CN103194010 B CN 103194010B CN 201310111532 A CN201310111532 A CN 201310111532A CN 103194010 B CN103194010 B CN 103194010B
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- damping material
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Abstract
The invention relates to a damping material based on the blending of butyl rubber and natural rubber and a preparation method thereof. The composite material consists of natural rubber, butyl rubber, petroleum resin, carbon black, accelerant and assistant, and the damping material is prepared through the following steps of: firstly mixing 50 to 100 parts of natural rubber, 35 to 70 parts of petroleum resin, 2 to 10 parts of assistant and 35 to 70 parts of carbon black, and then adding 0 to 200 parts of butyl rubber and 2 to 10 parts of vulcanizing agent to the mixture to be uniformly mixed into sheets; and finally hot pressing the obtained rubber material under 5 to 10MPa and 100 to 200 DEG C to obtain the damping material. The damping property of the obtained damping material is greatly improved while the good mechanical property is guaranteed, and the application range is wide. The preparation method is simple in process and easy to produce in an industrialization way.
Description
Technical field
The present invention relates to polymer damping material field.Specifically, relate to a kind of based on isoprene-isobutylene rubber and the blended damping material of natural rubber and preparation method thereof.
Technical background
Along with the development of modern industry, the frequency that vibration & noise occurs and place get more and more, vibration, impact, noise create serious harm to social production and social life, and vibration, sound pollution have become the world three overall situation of mentioning in the same breath with water pollutions and topsoil and one of polluted.Therefore, vibration and noise reducing is that current environment protects one of major issue in the urgent need to address, and adopts high damping structured material to be a kind of effective means solved the problem.Polymkeric substance has visco-elasticity, particularly in glass transition region, produces internal friction by molecular chain movement, and the mechanical energy of absorption and acoustic energy are converted into thermal dissipation.The high damping presented makes it be especially suitable for use as damping material, plays the object of vibration and noise reducing, is widely used in aerospace cause, the every field such as communications and transportation, mechanical means, construction work and daily life.Such as: in heavy duty with under dual traffic intensity effect at a high speed, bridge damping backing plate will have enough Rigidity and strengths, just can resist the destruction of vehicle to bridge, the steady safety under vehicle high-speed operation is guaranteed.Due to the snappiness of rubber bearing, the function such as necessary buffering, vibration damping, insulation in track structure can be provided, thus become parts important in railroad track
Macromolecular material is narrower as the glass transition region． of damping material, and effective damping temperature domain often only has 20 ~ 30 DEG C, and practical application at least needs the temperature range of 60 ~ 80 DEG C.In order to obtain the polymer damping material of excellent performance, namely in the temperature range of broadness, have higher damping value, forefathers mainly design from two aspects.On the one hand, from the angle of macromolecular material matrix, select to have the polymkeric substance of relative high damping, and adopt blended, the grafting of different polymkeric substance or the method for block copolymerization and interpenetrating network system.On the other hand, add effective additive and modification is carried out to polymeric matrix, as filler, softening agent, tackifying resin with organic molecule of hydrogen bond hybrid systems etc. can be formed as damping imparting agent with matrix.
Summary of the invention
The object of the invention is to overcome natural rubber tan δ peak value lower, the defect that temperature range scope is narrower, the practical damping material of the wide temperature range providing a kind of performance more excellent, by adding isoprene-isobutylene rubber (3745, Ai Mosen company of the U.S.) and other auxiliary agent improve the damping capacity of material, while ensureing better mechanical property, significantly improve the damping capacity of material, widen temperature range scope, simultaneously preparation method's technique is simple, can for the production of in.
Another object of the present invention is to provide a kind of preparation method based on isoprene-isobutylene rubber and the blended damping material of natural rubber.
The present invention is achieved by the following technical solutions:
Based on isoprene-isobutylene rubber and the blended damping material of natural rubber, obtained by blended, compressing tablet, component and the mass fraction of described damping material are as follows:
Wherein, described isoprene-isobutylene rubber is that Ai Mosen company of the U.S. produces, the trade mark is the isoprene-isobutylene rubber of 3745,
Described petroleum resin are one or both in C9 petroleum resin and C5 petroleum resin,
Described carbon black is one or both of N339 and N220,
Described auxiliary agent is anti-aging agent and promotor,
Wherein, described promotor is one or more in accelerant CZ, altax, Vulcanization accelerator TMTD,
Wherein, described anti-aging agent is one or more in antioxidant A, antioxidant BLE, antioxidant 4010NA,
Wherein, described vulcanizing agent is sulphur.
Above-mentioned carbon black N339 and N220, accelerant CZ, altax, Vulcanization accelerator TMTD, antioxidant A, antioxidant BLE, antioxidant 4010NA are commercially available prod.Wherein: carbon black is produced by Zhangqiu City of Shandong Province carbon black instrument factory that forever shakes, N339 and N220 is the trade mark of carbon black, and promotor is produced by upper marine origin brocade Chemical Co., Ltd., and CZ, DM, TMTD are the trade mark of promotor; Anti-aging agent is produced by the new Chemical Co., Ltd. of new east station of Guangzhou, and A, BLE, 4010NA are the trade mark of anti-aging agent.
To achieve these goals, the present invention proposes the preparation method of isoprene-isobutylene rubber and the blended damping material of natural rubber, comprise step as follows:
(1) by the vacuum-drying 2 ~ 10 hours at 60 ~ 100 DEG C of promotor, anti-aging agent, vulcanizing agent, removing moisture wherein,
(2) at room temperature natural rubber, C9 petroleum resin, promotor, anti-aging agent and carbon black are carried out mixing with two roller mill, then isoprene-isobutylene rubber, vulcanizing agent are added mixing evenly in blocks.
(3) after slice, with 25 tons of compression molding instrument at 100 ~ 200 DEG C, the shaping described material obtaining sheet of hot pressing 1 ~ 10min under 5 ~ 10MPa.
Dynamic mechanical analyzer (DMA) is adopted to carry out dynamic mechanical analysis to damping material.Test condition: frequency 11hz, temperature-100 DEG C ~ 200 DEG C, temperature rise rate 3 DEG C/min, adopts stretching clamp.
Isoprene-isobutylene rubber of the present invention and the blended shaping rear resulting product tensile strength of damping material of natural rubber are the temperature range scope of 15 ~ 30MPa, tan δ >0.3 is-50 DEG C ~ 50 DEG C, and loss damping factor peak value is 0.6 ~ 2.Beneficial effect
The present invention significantly improves the damping capacity of natural rubber by adding isoprene-isobutylene rubber, ensure that better mechanical property simultaneously, thus obtains the practical damping material of the more excellent wide temperature range of a kind of performance.Because the processing characteristics of isoprene-isobutylene rubber is fine, preparation method's technique is simple, is more suitable for industrialization.It is good that isoprene-isobutylene rubber of the present invention and the blended damping material of natural rubber have mechanical property, and temperature range scope is wide, and damping capacity is good, and technique is simple, is easy to the advantages such as suitability for industrialized production, can be used in the damping materials such as bridge damping rubber bearing.
Accompanying drawing explanation
Fig. 1 is NR/IIR=100/0 dynamic mechanical test analysis of spectra;
Fig. 2 is NR/IIR=100/75 dynamic mechanical test analysis of spectra;
Fig. 3 is NR/IIR=100/100 dynamic mechanical test analysis of spectra;
Fig. 4 is NR/IIR=100/200 dynamic mechanical test analysis of spectra;
In Fig. 1 ~ 4: transverse axis represents temperature, the longitudinal axis represents dissipation factor (tan δ), tan δ=E "/E ', E '-storage modulus, E " and-out-of-phase modulus.
Embodiment
Feature of the present invention and advantage will be described in detail by embodiment, but described embodiment is only for the present invention instead of restriction the present invention.
Comparative example
Natural rubber 100g, C9 petroleum resin 70g, antioxidant A 1g, antioxidant 4010NA 1g, accelerant CZ 0.5g, Vulcanization accelerator TMTD 0.5g, carbon black N33940g, N22030g are carried out mixing in two roller mill under room temperature, again sulphur 2g is added evenly mixing after sizing material mixes, thin-pass after playing triangle bag 10 times, roll spacing is transferred to 2mm slice, park 24 hours stand-by.By sizing material on 25 tons of vulcanizing presses under temperature 160 DEG C, pressure 10MPa mold pressing 20min obtain the thick print of 2mm carry out dynamic properties test and tensile property test.As seen from Figure 1, the loss damping factor peak value of this material is 0.38, and peak value is positioned at-15 DEG C; The temperature range that dissipation factor is greater than 0.3 is-33 ~ 27 DEG C.Tensile strength is 16.5Mpa.
Embodiment 1
Natural rubber 100g, C9 petroleum resin 70g, antioxidant A 1g, antioxidant 4010NA 1g, accelerant CZ 0.5g, Vulcanization accelerator TMTD 0.5g, carbon black N33940g, N22030g are carried out mixing in two roller mill under room temperature, again isoprene-isobutylene rubber 75g, sulphur 3g are added evenly mixing after sizing material mixes, thin-pass after playing triangle bag 10 times, roll spacing is transferred to 2mm slice, park 24 hours stand-by.By sizing material on 25 tons of vulcanizing presses under temperature 160 DEG C, pressure 10MPa mold pressing 20min obtain the thick print of 2mm carry out dynamic properties test and tensile property test.As seen from Figure 2, the loss damping factor peak value of this material is 0.65, and peak value is positioned at-13 DEG C; The temperature range that dissipation factor is greater than 0.3 is-45 ~ 50 DEG C.Tensile strength is 9.3Mpa.
Embodiment 2
Natural rubber 100g, C9 petroleum resin 70g, antioxidant A 1g, antioxidant 4010NA 1g, accelerant CZ 0.5g, Vulcanization accelerator TMTD 0.5g, carbon black N33940g, N22030g are carried out mixing in two roller mill under room temperature, again isoprene-isobutylene rubber 100g, sulphur 4g are added evenly mixing after sizing material mixes, thin-pass after playing triangle bag 10 times, roll spacing is transferred to 2mm slice, park 24 hours stand-by.By sizing material on 25 tons of vulcanizing presses under temperature 160 DEG C, pressure 10MPa mold pressing 20min obtain the thick print of 2mm carry out dynamic properties test and tensile property test.As seen from Figure 3, the loss damping factor peak value of this material is 0.75, and peak value is positioned at-10 DEG C; The temperature range that dissipation factor is greater than 0.3 is-50 ~ 41 DEG C.Tensile strength is 12.8Mp.
Embodiment 3
Natural rubber 100g, C9 petroleum resin 70g, antioxidant A 1g, antioxidant 4010NA 1g, accelerant CZ 0.5g, Vulcanization accelerator TMTD 0.5g, carbon black N33940g, N22030g are carried out mixing in two roller mill under room temperature, again isoprene-isobutylene rubber 200g, sulphur 6g are added evenly mixing after sizing material mixes, thin-pass after playing triangle bag 10 times, roll spacing is transferred to 2mm slice, park 24 hours stand-by.By sizing material on 25 tons of vulcanizing presses under temperature 160 DEG C, pressure 10MPa mold pressing 20min obtain the thick print of 2mm carry out dynamic properties test and tensile property test.As seen from Figure 4, the loss damping factor peak value of this material is 0.85, and peak value is positioned at-6 DEG C; The temperature range that dissipation factor is greater than 0.3 is-47 ~ 46 DEG C.Tensile strength is 10.6Mp.
Claims (2)
1., based on isoprene-isobutylene rubber and the blended damping material of natural rubber, obtained by blended, compressing tablet, it is characterized in that, component and the mass fraction of described damping material are as follows:
Wherein, described isoprene-isobutylene rubber is that Ai Mosen company of the U.S. produces, the trade mark is the isoprene-isobutylene rubber of 3745;
Described petroleum resin are one or both in C9 petroleum resin and C5 petroleum resin;
Described carbon black is one or both of N339 and N220;
Described auxiliary agent is anti-aging agent and promotor, and promotor is one or more in accelerant CZ, altax, Vulcanization accelerator TMTD, and anti-aging agent is one or more in antioxidant A, antioxidant BLE, antioxidant 4010NA;
Described vulcanizing agent is sulphur.
2. the preparation method of damping material as claimed in claim 1, it is characterized in that, it is as follows that described method comprises step:
(1) by the vacuum-drying 2 ~ 10 hours at 60 ~ 100 DEG C of promotor, anti-aging agent, vulcanizing agent, removing moisture wherein,
(2) at 20 ~ 30 DEG C, natural rubber, C9 petroleum resin, promotor, anti-aging agent and carbon black are carried out mixing with two roller mill, then isoprene-isobutylene rubber, vulcanizing agent are added mixing evenly in blocks,
(3) after slice, with 25 tons of compression molding instrument at 100 ~ 200 DEG C, the shaping described material obtaining sheet of hot pressing 1 ~ 10min under 5 ~ 10MPa.
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| CN104804313A (en) * | 2015-05-08 | 2015-07-29 | 王本祥 | Environment-friendly hot-melting damping plate and preparation method thereof |
| 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 |
| CN106009331A (en) * | 2016-07-27 | 2016-10-12 | 广西南宁胜祺安科技开发有限公司 | Wear-resistant rubber shock absorption material and preparation method thereof |
| CN106349581A (en) * | 2016-08-31 | 2017-01-25 | 邝月辉 | Rubber material |
| CN106750704A (en) * | 2017-01-11 | 2017-05-31 | 上海正村橡塑工业有限公司 | A kind of formula for improving rubber damping characteristic |
| CN111718523B (en) * | 2020-07-21 | 2021-07-02 | 华中科技大学 | Low-modulus high-damping rubber for shield tunnel shock insulation and preparation and application thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1492905A (en) * | 2001-03-19 | 2004-04-28 | ����ɭ���ڻ�ѧר����˾ | High traction and wear resistant elastomeric compositions |
| CN102690446A (en) * | 2012-06-11 | 2012-09-26 | 中交第一公路勘察设计研究院有限公司 | High-damping composite material with multidirectional contained patch board structure and preparation method of composite material |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1492905A (en) * | 2001-03-19 | 2004-04-28 | ����ɭ���ڻ�ѧר����˾ | High traction and wear resistant elastomeric compositions |
| CN102690446A (en) * | 2012-06-11 | 2012-09-26 | 中交第一公路勘察设计研究院有限公司 | High-damping composite material with multidirectional contained patch board structure and preparation method of composite material |
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