CN103724908A - Low-hardness high-damping rubber composition and preparation method thereof - Google Patents
Low-hardness high-damping rubber composition and preparation method thereof Download PDFInfo
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Abstract
The invention discloses a low-hardness high-damping rubber composition and a preparation method thereof. According to the composition, butyl rubber and polynorbornene rubber are used together, so that the damping application range of the material is widened, the application temperature is from 40 DEG C below zero to 80 DEG C, and the heat resistance and ozone resistance of the material are improved to a certain degree. A wide-temperature range, low-hardness and high-damping material is prepared through blending, the application range of the damping material is improved, especially a high-damping effect at room temperature is achieved, the rebound rate of vulcanized rubber at room temperature is less than 1 percent, and 90 percent of kinetic energy is converted into heat energy, so that an effect of maximizing the damped oscillation is achieved. The rubber composition disclosed by the invention can be widely applied to the fields of buildings, automobiles and high-precision instruments so as to achieve the damping aim.
Description
Technical field
The invention belongs to rubber materials, relate to a kind of rubber combination, be specifically related to a kind of soft highly damping rubber composition and preparation method thereof.
Background technology
Along with scientific and technological progress and social development, the control of vibration and noise has become a very important engineering technology problem, is more and more subject to various countries researchist's attention.The method of various control vibrations and noise has been widely used in the fields such as machinery, electronics, aerospace.
In the control techniques measure of the various engineering vibration going out in R and D at present, damping vibration attenuation is a kind of effective way.Take automotive industry as example, and the use of yielding rubber material has increased substantially comfortableness, stability and the security of automobile.Now, existing many novel materials and new technology are constantly applied to damping shock absorption, and wherein polymer damping shock absorption material more and more causes people's attention with its excellent performance.Adopt rubber damping material, not only can reduce to greatest extent mechanical noise and alleviate mechanical vibration, increase work efficiency, and be extremely beneficial to the quality that improves product.
The damping behavior of elastomeric material is material while being subject to External Force Acting, and macromolecular chain segment produces relative movement, mechanical energy is converted into the process of heat energy.Wherein, the motion of macromolecular chain segment, is in fact a relaxation.Three kinds of Mechanical Forms that elastomeric material varies with temperature appearance are:
1. vitreous state
Macromolecular chain segment kinergety is very low, and storage modulus is very high, and molecule singly-bound can only be done weak interior rotation under external force, main chain is almost in frozen state, therefore mechanical energy can not be converted into thermal energy consumption and dissipates, and can only store as potential energy, and damping capacity is poor;
2. elastic state
Macromolecular chain segment easily moves, and macromolecular chain easily adapts to External Force Acting and stretches or curling, but can not absorb enough mechanical energy, so the damping capacity of elastomeric material does not reach best;
3. the form that vitreous state changes to elastic state
Due to the synergy of internal friction and the segment of macromolecular chain segment, material damping performance is good, can absorb a large amount of vibrational energies.Yet, because the dynamic properties of rubber-like viscoelastic body is subject to the impact of use temperature, vibrational frequency very large, the glass transition temperature range (20-30 ℃) of homopolymer is very little simultaneously, so the application of rubber damping material in engineering field has very large limitation.
And norbornene monomer system is produced through Diels Alder reaction by ethene and cyclopentadiene.Polynorbornene is obtained in ring-opening polymerization mode by norbornylene.The molecular weight of polymkeric substance is about 3,000,000 (g/mol), is approximately 30 times of NBR specification of general use, and glass transition temp is about 37 ℃, nonpolar, there is high affinity with hydrocarbon polymer, and can absorb the oil content of 10 times of itself weight, can realize snappiness and high damping characteristic by difference cooperation system, but use separately poly-norbornene rubber ultimate damping interval narrow, can not realize wide temperature zone high damping.
Existing conventional rubber second-order transition temperature Tg mostly is between-40 ℃ to-80 ℃, and the narrow about 20-30 ℃ of glass transition temperature range, result causes material damping peak value to appear at below 0 ℃, and damping characteristics can not meet various places and each seasonal temperature requirement simultaneously, causes the material scope of application limited.In addition, the about 40HA of basic hardness of rubber, makes the rubber that hardness is less than 30HA and need add a large amount of tenderizers, is prone to that tenderizer is separated out, the problem of degradation.
The oil-filled preparation process of traditional polynorbornene is: powdery polynorbornene is dipped in a certain amount of oil plant, to polynorbornene be elastomeric state, again oil-filled rear polynorbornene being added to auxiliary agent carries out mixing, this scheme rubber compounding weak effect, be prone to not mixing even polynorbornene particle, in rubber bodies, there is stress concentration, reduce product work-ing life; Directly buying pre-oiling polynorbornene can be avoided Similar Problems, but relative cost is higher, and market pre-oiling is identical with non-oil-filled polynorbornene powder price according to norbornylene price, and polynorbornene price, far above oil price, differs nearly more than 10 times.
Chinese invention patent CN101205336 discloses " a kind of for making the composition of low-hardness rubber material ", with terpolymer EP rubber and poly-norbornene rubber, with the mass ratio of 25-35/75-65, also use, take naphthenic oil as tenderizer, take dimorpholinyl disulfide as vulcanizing agent.The 3rd monomer of terpolymer EP rubber used is ethylidene norbornene, and propylene content is between 20-30% quality.Wherein polynorbornene used and ethylene-propylene rubber(EPR) are shared is in order to improve its ozone resistance.But, in this system, select ethylene-propylene rubber(EPR) propylene content to be 20-30%, lower, material is easily crystallization under low temperature condition, and modulus obviously increases, poor performance at low temperatures; In the time of 23 ℃, the ratio of damping of EPDM is 0.077 in addition, and far below 0.7 of isoprene-isobutylene rubber, damping is poor.
Chinese invention patent CN 101418109 discloses a kind of " the high temperature and high damping resistant rubber combination that the poly-norbornene rubber of take is main body ", said composition be take the fusion blend of poly-norbornene rubber and silicon rubber and is basis, the solubilizing agent that the blend of terpolymer EP rubber and ethylene-methyl acrylate copolymer of take is poly-norbornene rubber and silicon rubber fusion blend, be equipped with 2 simultaneously, 5-dimethyl-2,5(t-butyl peroxy) hexane is vulcanizing agent, and vinyltriacetoxy silane is coupling agent.Sizing material is mixing forming in 130 ℃ of Banbury mixeies.It is in order to improve the thermotolerance of material that the polynorbornene that wherein used and silicon rubber are also used.But the ratio of damping 0.05-0.1 of silicon rubber is less, its damping, not as good as isoprene-isobutylene rubber, can cause the effect of the damping and amortization reduction of blended rubber.
Chinese invention patent CN1789326 discloses a kind of " high-damping oil-resistant rubber composition ", take poly-norbornene rubber and paracril fusion blend as basis, take dicumyl peroxide as co-crosslinker, triallyl isocyanurate is additional crosslinker.The acrylonitrile content of described paracril is 23-30%.The fusion blending ratio of poly-norbornene rubber and paracril, is 85-75/15-25 by weight, preferably 80/20.The polynorbornene that wherein used and paracril are also used for improving the oil-proofness of material.But paracril, because containing vinyl cyanide, is polar group, very easily crystallization under cold condition, low temperature brittleness is poor, and ozone resistance is poor.
Summary of the invention
The technical problem to be solved in the present invention, be to provide a kind of soft highly damping rubber composition and preparation method thereof, said composition is by isoprene-isobutylene rubber and poly-norbornene rubber use, not only improve the material damping scope of application to-40 ℃ to 80 ℃, and improved to a certain extent thermotolerance and the ozone resistance of material; Blend makes wide temperature range, soft, high damping material, improves the high damping effect under the damping material scope of application, especially room temperature, and under normal temperature, vulcanized rubber rebound degree is less than 1%, by 90% kinetic transformation, is heat energy, thereby plays maximum attenuation shock effect.Preparation method of the present invention adopts polynorbornene preheating, improve polynorbornene banding characteristics, the processing method of refueling by mixing limit, limit, has avoided the not appearance of mixing even problem of polynorbornene particle, aspect assurance durability of product, occupy great cost advantage.
For solving the problems of the technologies described above, the technical solution used in the present invention is:
A soft highly damping rubber composition, it comprises the component of following parts by weight:
Poly-norbornene rubber 70-90 part, isoprene-isobutylene rubber 10-30 part, zinc oxide 2.0-5.0 part, stearic acid 0.5-1.0 part, reinforcement system 30-50 part, softening softening agent 100-150 part, tackifier 40-80 part, 5.5 parts of promotor, 2.0 parts of vulcanizing agents.
In prior art, be that performance shortcomings is improved for polynorbornene thermotolerance, ozone resistance be poor etc., what consider is the ageing-resistant performance of material, and starting point of the present invention is material damping performance, by butyl rubber use with thering is equally high damping, not only guaranteed the damping and amortization of material, also widen the damping temperature domain of material, made maximum damping value under Applicable temperature.
As a kind of restriction of the present invention, the weight ratio of poly-norbornene rubber and isoprene-isobutylene rubber is 9:1, and poly-norbornene rubber is 90 parts, 10 parts of isoprene-isobutylene rubbers.Along with the increase of butyl rubber consumption, vulcanized rubber kindliness can decline, feel variation, and when butyl rubber consumption is during lower than 10 parts, low temperature damping variation.
As another kind of restriction of the present invention, described reinforcement system is Sa Bofei S503 sheet modification potter's clay, and manufacturer is Zaozhuang City San Xing new high-tech material company limited.Select sheet filler, when the elastomeric material of laminal filler is deformed by External Force Acting, laminal filler meeting is orientated, thereby makes to produce friction between filler and rubber, plays the effect of noise reduction.Sheet modification potter's clay, by potter's clay is carried out to graft modification, general method of modifying is by organic alkane ammonium chloride, as two octadecyl trimethyl ammonium chloride, monomer is first inserted into potter's clay sheet interlayer under certain condition, then at external influence, as made its polymerization under oxygen, light, heat, initiator or electronic action.The amount of heat of emitting while utilizing polymerization comes the Coulomb's force of gram sheet interlayer, lamella is expanded, simultaneously by chemical treatments such as ion-exchanges, organic paraffin section is grafted on potter's clay molecule, improving potter's clay is combined with rubber organic macromolecule, be conducive to potter's clay and be combined with rubber molecule, employing be similar compatibility principle, by Intermolecular Forces, mutually restrict.
As of the present invention the third, limit, described softening softening agent is high viscosity naphthenic oil.Because poly-norbornene rubber second-order transition temperature Tg is 37 ℃, need to add a large amount of tenderizers to reduce its second-order transition temperature, realize its rubber elastomer characteristics at normal temperatures.Generally tenderizer viscosity is high can reduce its rubbing effect to macromolecular chain and storeroom, in damping material, adopts the oil that viscosity is high, as softening softening agent as far as possible.This technology adopts naphthenic oil H-6801 (technical indicator: be 19.51mm2/s according to viscosity at 265 100 ℃ of GB).
As the 4th kind of restriction of the present invention, described tackifier are the coumarone indene resin of weight ratio 3-5:1-3 and the mixture of resol.In the present invention, the interpolation of tackifier can improve tack of materials, increases intermolecular frictional force, vibration energy is converted into thermal energy consumption and dissipates, thereby play the effect that improves material damping; Tackifying resin can be adjusted polymer glass temperature T g.
The present invention also has a kind of restriction, and the promotor of stating is 4.5 parts of accelerator CBSs (sulfenamide type accelerators) and promotor EZ(dithio amino-carbamic acid salt promotor) mixture of 1.0 parts.Along with the increase of degree of crosslinking, it is large that the damping temperature range of material becomes, and degree of crosslinking is suitable, is conducive to improve the damping capacity of material.Promotor take sulfenamide as primary accelerator, and dithio amino-carbamic acid salt promotor EZ is auxiliary promotor, when guaranteeing that sizing material has suitable state of vulcanization, has vulcanization rate faster.
As the 6th kind of restriction of the present invention, the molecular weight of described poly-norbornene rubber is 3000000g/mol.Poly-norbornene rubber is obtained in ring-opening polymerization mode by norbornylene.The molecular weight of polymkeric substance is about 3000000 (g/mol), is approximately 30 times of NBR specification of general use; Glass transition temp is about 37 ℃, nonpolar; Can adjust its Tg by different cooperation systems, obtain very big damping value under differing temps.
If rubber molecular chain upside matrix long-pending compared with large, quantity is many, polarity is large and intermolecular hydrogen bonding is many, it is good to act on strong rubber damping performance.And butyl rubber has more pending methyl group, molecule segment athletic meeting produces larger friction, has excellent damping and amortization; In addition, isoprene-isobutylene rubber second-order transition temperature (Tg) is-70 ℃, and its Internal Friction Peak can be continued until 20 ℃ from-70 ℃, is the quite wide damping material in a kind of effective efficiency district; Dissipation factor (tag δ) variation with temperature and changing,-30 ℃ of left and right, there is a maximum value, what the size of dissipation factor represented is the viscoelastic property of material, the stickiness of the larger illustrative material of dissipation factor is larger, the elasticity of the less illustrative material of dissipation factor is larger, can represent the state of material in certain scope.
As the further restriction of above-mentioned restriction, the preparation method of described poly-norbornene rubber carries out according to following steps order:
1. mill temperature is increased to 100 ℃;
2. will be preheated to preheating 20min under 100 parts of poly-norbornene rubber conditions of 140 ℃, mixing in the mill of 100 ℃, design temperature is 100-120 ℃, and 0-0.5mm is adjusted in roll spacing; Preheating is only for poly-norbornene rubber, and because it is inelastic body state at normal temperatures, the object of preheating is, it is fully heated, and is convenient to moulding in mill, improves calendering process.
3. after polynorbornene is in blocks, add 150 parts of high viscosity naphthenic oils, form blend P;
Wherein, the rate of addition of high viscosity naphthenic oil is 5-13ml/ time, after every dropping once, treat that polynorbornene fully mixes with high viscosity naphthenic oil, then carry out interpolation next time, so, until high viscosity cycloalkanes oil mass fills up;
The present invention is with 300g polynorbornene, and the initial stage adds about 5ml/ time at every turn, after the complete moulding bag of polynorbornene roller, improves addition, mostly is 13ml most, and principle is not overflowed, is beneficial to oil plant with oil plant and sneaks into polynorbornene and be limited.Fully mixing is that polynorbornene fully mixes with high viscosity naphthenic oil, and under the effect of shearing force, oil plant is dispersed between polynorbornene macromolecular chain; Decision principle: polynorbornene is surperficial, mill mixer roller is surperficial without unabsorbed tenderizer.
4. the zinc oxide of 2.0-5.0 part will be added in blend P, the stearic acid of 0.5-1.0 part, the potter's clay of 30-50 part, the coumarone indene resin of 30-50 part, the resol of 10-30 part, the accelerator CBS of 4.5 parts, the promotor EZ of 1.0 parts, the sulphur of 2.0 parts carries out mixingly in Banbury mixer or mill, obtains poly-norbornene rubber finished product.
Wherein, mixer mixing step is as follows:
Oil-filled rear poly-norbornene rubber/isoprene-isobutylene rubber → mixer mixing (turn/min of rotating speed: 40-45,135 ± 2 ℃ of dump temperatures, order of addition(of ingredients): small powder, comprises zinc oxide, stearic acid, resin etc.; Aniseed, potter's clay; Vulcanization accelerator, comprises sulphur, promotor etc.) → mill compression molding (roll spacing: 4-5mm).
Mill mixing step is as follows:
Oil-filled poly-norbornene rubber/isoprene-isobutylene rubber → mill (roll spacing: 1.5-3mm, roller temperature: 70 ± 5 ℃, roller speed: material order: small powder, comprises zinc oxide, stearic acid, resin etc.; Aniseed, potter's clay; Vulcanization accelerator, comprises sulphur, promotor etc.) → compression molding (roll spacing: 4-5mm).
Rubber is as a kind of macromolecular material, and the key character of its deformation character is visco-elasticity, and damping action mechanism directly and the dynamic mechanical slackness qualitative correlation of superpolymer.When macromolecular material absorbing vibrational energy, partly change the mechanical energy of absorption into heat energy and dissipate, play damping action.Macromolecular material damping action size depends on the size of hysteresis phenomenon, and its response lag is in stress, and due to hysteresis phenomenon, stretching-retraction circulation change of polymkeric substance all needs to overcome the intersegmental internal friction resistance of chain and in-fighting.Superpolymer is glass zone below glass transition temperature Tg, modulus is very high, molecule almost can not move, therefore also just can not distribute mechanical energy, and store energy as potential energy, do not consume and be transformed into heat energy, when elastomeric state, molecular motion is easy to, can not absorb enough mechanical energy, and in very narrow glassy transition district, the modulus of polymkeric substance significantly declines, and be accompanied by obvious mechanical damping characteristic, at this moment superpolymer has sufficiently high dissipation factor, in large quantities absorbing vibrational energy.Although some polymkeric substance has more satisfactory dissipation factor, but its vitreous state temperature transition district is extremely narrow, single-material is not suitable for the service requirements of broad temperature, broadband damping, need to the material of two or more different glass transition temperatures Tg be merged by modes such as blend, blocks, just can make wide temperature range damping damping material.
The present invention also provides the method for preparing above-mentioned soft highly damping rubber composition, according to following steps order, carries out:
(1) feeding
Get the raw material of formula ratio, standby;
(2) preheating
By the poly-norbornene rubber raw material of formula ratio preheating 20min at 138-142 ℃, obtain the poly-norbornene rubber raw material A after preheating;
(3) open refining
Poly-norbornene rubber raw material A after preheating is put at mill 100-120 ℃ and opened refining, adjustment roll spacing is 0-0.5mm, design temperature is 65-75 ℃, add the high viscosity naphthenic oil of formula ratio, after mixing fully, again isoprene-isobutylene rubber is added and mixed, after add successively zinc oxide, stearic acid, tackifier, reinforcement system, vulcanizing agent, promotor, until material sneaks in rubber matrix completely, form rubber B;
(4) slice
Rubber B is dropped between mill roll spacing, adjust the roll spacing of mill to 4-5mm, after clot, clot is carried out in the mill of vertical input again, and this process circulation 5 times, pulls out film, makes slice sizing material C;
(5) cooling
Slice sizing material C is placed in to separant tank, and water temperature is adjusted into 8-12 ℃, parks 1-2min, forms sizing material D;
(6) park
Sizing material D is placed on shelf, and in normal temperature environment, parking 8-168h(validity period is 7 days), form rubber unvulcanizate D;
(7) sulfuration
Rubber unvulcanizate D is vulcanized, and this sulfidation is injection-molding, and locked mode pressure is 170Kg/cm2, and temperature is 155-165 ℃, and curing time is 900s, finally forms soft highly damping rubber composition.
Owing to having adopted above-mentioned technical scheme, compared with prior art, obtained technical progress is in the present invention:
Soft highly damping rubber composition and preparation method thereof, by isoprene-isobutylene rubber and poly-norbornene rubber use, has not only improved the material damping scope of application, can also improve material thermal resistance and ozone resistance to a certain extent; Tackifier used in the present invention, can improve tack of materials, increase intermolecular frictional force, vibration energy is converted into thermal energy consumption and dissipates, thereby play the effect that improves material damping; Tackifying resin can be adjusted polymer glass temperature T g; Blend can make wide temperature range, soft, high damping material, improves the damping material scope of application.Especially the high damping effect under room temperature, under normal temperature, vulcanized rubber rebound degree is less than 1%, by 90% kinetic transformation, is heat energy, thereby plays maximum attenuation shock effect.
The present invention adopts polynorbornene preheating, improves polynorbornene banding characteristics, and the processing method of refueling by mixing limit, limit, has avoided the not appearance of mixing even problem of polynorbornene particle, aspect assurance durability of product, occupies great cost advantage.
The present invention makes damping temperature domain-40～50 ℃, and isoprene-isobutylene rubber exists damping peak value at-30 ℃, and by adjusting tenderizer consumption, damping peak value can appear in poly-norbornene rubber within the scope of the arbitrary temp of 0-30 ℃; Because polynorbornene has strong oil-wet, can add a large amount of tenderizers, reduce vulcanized rubber hardness, be easy to make the low-durometer material that Hs is less than 30HA.
Soft highly damping rubber composition provided by the present invention, damping object is realized in the fields such as building, automobile and highly sophisticated device that are applicable to.
The present invention is described in further detail below in conjunction with specific embodiment.
Embodiment
embodiment 1a kind of soft highly damping rubber composition and preparation method thereof
A soft highly damping rubber composition, it comprises following component:
Poly-norbornene rubber 90g, isoprene-isobutylene rubber rubber 10g, zinc oxide 5.0g, stearic acid 0.8g, Sa Bofei S503 sheet modification potter's clay 40g;
High viscosity naphthenic oil 120g, coumarone indene resin 40g, resol 20g;
Accelerator CBS 4.5g, promotor EZ 1.0g, sulphur 2.0g;
Wherein, the molecular weight of described poly-norbornene rubber is 3000000g/mol.
The preparation method of described poly-norbornene rubber carries out according to following steps order:
1. mill temperature is increased to 100 ℃;
2. will be preheated to preheating 20min under 100 parts of poly-norbornene rubber conditions of 140 ℃, mixing in the mill of 100 ℃, design temperature is 120 ℃, and 0.3mm is adjusted in roll spacing;
3. after polynorbornene is in blocks, add 150 parts of high viscosity naphthenic oils, form blend P;
Wherein, the rate of addition of high viscosity naphthenic oil is 5ml/ time, after each interpolation, treat that polynorbornene fully mixes with high viscosity naphthenic oil, then carry out interpolation next time, so, until high viscosity cycloalkanes oil mass fills up;
4. the zinc oxide of 3.0 parts will be added in blend P, the stearic acid of 0.8 part, the potter's clay of 40 parts, the coumarone indene resin of 40 parts, the resol of 20 parts, the accelerator CBS of 4.5 parts, the promotor EZ of 1.0 parts, the sulphur of 2.0 parts carries out mixingly in Banbury mixer or mill, obtains poly-norbornene rubber finished product.
The method of soft highly damping rubber composition, according to following steps order, carry out:
(1) feeding
Get the raw material of formula ratio, standby;
(2) preheating
By the poly-norbornene rubber raw material of formula ratio preheating 20min at 140 ℃, obtain the poly-norbornene rubber raw material A 1 after preheating;
(3) open refining
Poly-norbornene rubber raw material A after preheating is put at 100 ℃ of mills and opened refining, adjustment roll spacing is 0.3mm, design temperature is 65 ℃, add the high viscosity naphthenic oil of formula ratio, after mixing fully, again isoprene-isobutylene rubber is added and mixed, after add successively zinc oxide, stearic acid, tackifier, reinforcement system, vulcanizing agent, promotor, until material sneaks in rubber matrix completely, form rubber B1;
(4) slice
Rubber B1 is dropped between mill roll spacing, adjust the roll spacing of mill to 4mm, after clot, clot is carried out in the mill of vertical input again, and this process circulation 5 times, pulls out film, makes slice sizing material C1;
(5) cooling
Slice sizing material C1 is placed in to separant tank, and water temperature is adjusted into 10 ℃, parks 1min, forms sizing material D1;
(6) park
Sizing material D is placed on shelf, in normal temperature environment, parks 8h, form rubber unvulcanizate D;
(7) sulfuration
Rubber unvulcanizate D is vulcanized, and this sulfidation is injection-molding, and locked mode pressure is 170Kg/cm2, and temperature is 155 ± 165 ℃, and curing time 900 is s, finally forms soft highly damping rubber composition.
embodiment 2-6 soft highly damping rubber composition and preparation method thereof
Embodiment 2-6 is respectively a kind of soft highly damping rubber composition and preparation method thereof.
The difference of embodiment 2-6 and embodiment 1, is only its component concentration, difference, shown in table specific as follows:
Embodiment 2-6 poly-norbornene rubber preparation parameter table
Above, be only preferred embodiment of the present invention, be not the restriction to other form that the present invention does.Any those skilled in the art, may utilize above-mentioned technology contents as enlightenment, are changed or be modified as the equivalent embodiment of equivalent variations.But every technical solution of the present invention content that do not depart from, the simple modification of above embodiment having been done according to technical spirit of the present invention, equivalent variations and remodeling, still belong to the protection domain of the claims in the present invention.
Claims (9)
1. a soft highly damping rubber composition,
it is characterized in thatin parts by weight, it comprises following component:
Poly-norbornene rubber 70-90 part, isoprene-isobutylene rubber 10-30 part, zinc oxide 2.0-5.0 part, stearic acid 0.5-1.0 part, reinforcement system 30-50 part, softening softening agent 100-150 part, tackifier 40-80 part, 5.5 parts of promotor, 2.0 parts of vulcanizing agents.
2. soft highly damping rubber composition according to claim 1,
it is characterized in that:the weight ratio of poly-norbornene rubber and isoprene-isobutylene rubber is 9:1.
3. soft highly damping rubber composition according to claim 1,
it is characterized in that:described reinforcement system is the non-S503 sheet of Sa Bo modification potter's clay.
4. soft highly damping rubber composition according to claim 1,
it is characterized in that:described softening softening agent is high viscosity naphthenic oil.
5. soft highly damping rubber composition according to claim 1,
it is characterized in that:described tackifier are the coumarone indene resin of weight ratio 3-5:1-3 and the mixture of resol.
6. soft highly damping rubber composition according to claim 1,
it is characterized in that:described promotor is the mixture of 4.5 parts of accelerator CBSs and promotor EZ1.0 part.
7. soft highly damping rubber composition according to claim 1,
it is characterized in that:the molecular weight of described poly-norbornene rubber is 3000000g/mol.
8. soft highly damping rubber composition according to claim 7,
it is characterized in that:the preparation method of described poly-norbornene rubber carries out according to following steps order:
1. mill temperature is increased to 100 ℃;
2. will be preheated to preheating 20min under 100 parts of poly-norbornene rubber conditions of 140 ℃, mixing in the mill of 100 ℃, setting melting temperature is 100-120 ℃, and 0-0.5mm is adjusted in roll spacing;
3. after polynorbornene is in blocks, add 150 parts of high viscosity naphthenic oils, form blend P;
Wherein, the rate of addition of high viscosity naphthenic oil is 5-13ml/ time, after every dropping once, treat that polynorbornene fully mixes with high viscosity naphthenic oil, then carry out interpolation next time, so, until high viscosity cycloalkanes oil mass fills up;
4. the zinc oxide of 2.0-5.0 part will be added in blend P, the stearic acid of 0.5-1.0 part, the potter's clay of 30-50 part, the coumarone indene resin of 30-50 part, the resol of 10-30 part, the accelerator CBS of 4.5 parts, the promotor EZ of 1.0 parts, the sulphur of 2.0 parts carries out mixingly in Banbury mixer or mill, obtains poly-norbornene rubber finished product.
9. a method of preparing the soft highly damping rubber composition described in any one in claim 1-8,
it is characterized in thatit carries out according to following steps order:
(i) feeding
Get the raw material of formula ratio, standby;
(ii) preheating
By the poly-norbornene rubber raw material of formula ratio preheating 20min at 138-142 ℃, obtain the poly-norbornene rubber raw material A after preheating;
(iii) open refining
Poly-norbornene rubber raw material A after preheating is put at mill 100-120 ℃ and opened refining, adjustment roll spacing is 0-0.5mm, design temperature is 65-75 ℃, add the high viscosity naphthenic oil of formula ratio, after mixing fully, again isoprene-isobutylene rubber is added and mixed, after add successively zinc oxide, stearic acid, tackifier, reinforcement system, vulcanizing agent, promotor, until material sneaks in rubber matrix completely, form rubber B;
(iv) slice
Rubber B is dropped between mill roll spacing, adjust the roll spacing of mill to 4-5mm, after clot, clot is carried out in the mill of vertical input again, and this process circulation 5 times, pulls out film, makes slice sizing material C;
(v) cooling
Slice sizing material C is placed in to separant tank, and water temperature is adjusted into 8-12 ℃, parks 1-2min, forms sizing material D;
(vi) park
Sizing material D is placed on shelf, in normal temperature environment, parks 8-168h, form rubber unvulcanizate D;
(vii) sulfuration
Rubber unvulcanizate D is vulcanized, and this sulfidation is injection-molding, and locked mode pressure is 170Kg/cm2, and temperature is 155-165 ℃, and curing time is 900s, finally forms soft highly damping rubber composition.
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| CN104130539A (en) * | 2014-08-11 | 2014-11-05 | 上海经纬峰实业有限公司 | Flame-retardant high-damping rubber composition using polynorbornene rubber as main body |
| CN104830007A (en) * | 2015-04-09 | 2015-08-12 | 茂泰(福建)鞋材有限公司 | High-damping foaming material and preparation method thereof |
| CN105061914A (en) * | 2015-08-07 | 2015-11-18 | 龙口市橡塑产品研究所 | High-damping buffering and sound-absorbing rubber and preparation method therefor |
| CN109897385A (en) * | 2019-03-11 | 2019-06-18 | 安踏（中国）有限公司 | A kind of vibration-damping foamed middle bottom material and preparation method thereof of width temperature range |
| CN112592461A (en) * | 2020-12-14 | 2021-04-02 | 北京化工大学 | Modified hydrogenated nitrile rubber material and preparation method and application thereof |
| US11059264B2 (en) | 2018-03-19 | 2021-07-13 | Avery Dennison Corporation | Multilayer constrained-layer damping |
| US11701863B2 (en) | 2018-05-17 | 2023-07-18 | Avery Dennison Corporation | Partial coverage multilayer damping laminate |
| US11713406B2 (en) | 2016-09-20 | 2023-08-01 | Avery Dennison Corporation | Multilayer tape |
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| CN1789326A (en) * | 2004-12-17 | 2006-06-21 | 上海华向橡胶制品有限公司 | High-damping oil-resistant rubber composition |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104130539A (en) * | 2014-08-11 | 2014-11-05 | 上海经纬峰实业有限公司 | Flame-retardant high-damping rubber composition using polynorbornene rubber as main body |
| CN104130539B (en) * | 2014-08-11 | 2016-08-17 | 上海经纬峰实业有限公司 | A kind of fire-retardant highly damping rubber composition based on poly-norbornene rubber |
| CN104830007A (en) * | 2015-04-09 | 2015-08-12 | 茂泰(福建)鞋材有限公司 | High-damping foaming material and preparation method thereof |
| CN105061914A (en) * | 2015-08-07 | 2015-11-18 | 龙口市橡塑产品研究所 | High-damping buffering and sound-absorbing rubber and preparation method therefor |
| US11713406B2 (en) | 2016-09-20 | 2023-08-01 | Avery Dennison Corporation | Multilayer tape |
| US11059264B2 (en) | 2018-03-19 | 2021-07-13 | Avery Dennison Corporation | Multilayer constrained-layer damping |
| US11701863B2 (en) | 2018-05-17 | 2023-07-18 | Avery Dennison Corporation | Partial coverage multilayer damping laminate |
| CN109897385A (en) * | 2019-03-11 | 2019-06-18 | 安踏（中国）有限公司 | A kind of vibration-damping foamed middle bottom material and preparation method thereof of width temperature range |
| CN109897385B (en) * | 2019-03-11 | 2021-08-17 | 安踏（中国）有限公司 | Wide-temperature-range shock-absorption foaming insole material and preparation method thereof |
| CN112592461A (en) * | 2020-12-14 | 2021-04-02 | 北京化工大学 | Modified hydrogenated nitrile rubber material and preparation method and application thereof |
| CN112592461B (en) * | 2020-12-14 | 2022-02-11 | 北京化工大学 | Modified hydrogenated nitrile rubber material and preparation method and application thereof |
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