CN106957462A - A kind of utilization waste old production prevents the damping sheets of resonance - Google Patents
A kind of utilization waste old production prevents the damping sheets of resonance Download PDFInfo
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- 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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- 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
- C08L23/18—Homopolymers or copolymers of hydrocarbons having four or more carbon atoms
- C08L23/20—Homopolymers or copolymers of hydrocarbons having four or more carbon atoms having four to nine carbon atoms
- C08L23/22—Copolymers of isobutene; Butyl rubber ; Homo- or copolymers of other iso-olefins
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- C08L33/00—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides or nitriles thereof; Compositions of derivatives of such polymers
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- C08L83/00—Compositions of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon with or without sulfur, nitrogen, oxygen or carbon only; Compositions of derivatives of such polymers
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Abstract
The invention discloses the damping sheets that a kind of production of utilization waste old prevents resonance, include the material of following percentage by weight：Scrap rubber 30~40%, penylene BMI 5~10% between N N`, N N` bis- (β naphthyls) p-phenylenediamine 0.3~1%, thiuram 0.5~1%, butyl reclaimed rubber 2~15%, rubber oil 5~20%, carbon black 1~5%, white carbon 1~10%, iron powder 10~40% and mould inhibitor 0.5~1.5%, rational raw material selection in the present invention, rational raw material ratio, obtained utilization waste old production prevents the damping sheets of resonance, resistance to elevated temperatures is good, anti-resonance vibration effect is good, after tested under 150 DEG C of high-temperature work environment, damping sheets can also reach conventional service life, in addition, the damping sheets that the present invention is obtained are also equipped with water-tolerant, it is sticky big, damping and de-noising sound function.
Description
Technical field
The present invention relates to automobile brake system field of material technology, and in particular to one kind is prevented altogether using waste old production
The damping sheets shaken.
Background technology
The effect of damping sheets, one is shock dropping, that is, reduces infringement of the vibrations to car body of engine in the running, mainly
Reduce the possibility of resonance and prevent that rigid attachment from damaging to car body, two be noise reduction, that is, reducing rigid attachment causes to car body
Noise transmission or amplification, in the market conventional automobile or idle call damping sheets, can not be low although raw material type is various
High performance standard is reached in the state of cost, low input, therefore tablet raw material and proportioning and its institute are damped for automobile or air-conditioning
The performance indications that can be reached, just turn into the common issue for being badly in need of solving in industry.
The content of the invention
To solve the above problems, the present invention proposes that a kind of utilization waste old production prevents the damping sheets of resonance.
To realize the object of the invention, the technical scheme of use is：A kind of utilization waste old production prevents the damping of resonance
Sheet material, the damping sheets include the material of following percentage by weight：
Scrap rubber 30~40%
Penylene BMI 5~10% between N-N`-
N-N`- bis- (betanaphthyl) p-phenylenediamine 0.3~1%
Thiuram 0.5~1%
Butyl reclaimed rubber 2~15%
Rubber oil 5~20%
Carbon black 1~5%
White carbon 1~10%
Iron powder 10~40%
Mould inhibitor 0.5~1.5%.
It is preferred that, the scrap rubber in the damping sheets includes natural rubber 5~15%, butyl rubber 5~13%, fourth
Benzene rubber 3~12%, butadiene rubber 4~12%, nitrile rubber 2~10%, EP rubbers 2~13%, ACM 2~
10%th, polyurethanes 5~10%, isoprene rubber 5~10% and silicon rubber 5~10%.
It is preferred that, the damping sheets raw material also include the tackifier that percentage by weight is 2~5%, wherein, it is described
Tackifier are the one or two kinds of in terpene resin, indene resin and rosin.
It is preferred that, the damping sheets raw material also include the clay that percentage by weight is 1~5%, described clay bag
Hard (china) clay and soft white clay are included, wherein, the percentage by weight that hard (china) clay accounts for clay is 30~60%.
It is preferred that, the damping sheets raw material also include the talcum powder that percentage by weight is 5~20%, wherein, it is described
Talcum powder and iron powder percentage by weight ratio be 1:2.
It is preferred that, the damping sheets raw material also include the dispersant that percentage by weight is 2~5%, wherein, it is described
Activator is modified graphene Nano filling.
It is preferred that, the damping sheets raw material also include the colouring agent that percentage by weight is 5~8%, wherein, it is described
Colouring agent is one kind in iron oxide, phthalocyanine blue and titanium dioxide.
It is preferred that, the damping sheets preparation method is as follows：
1) add after is cleaned the scrap rubber raw material of the weight percentage in claim 1 or claim 2
Enter into pulverizer, progress is crushed to certain fineness；
2) material after the crushing that obtains step 1 is transferred to microwave high-temperature desulfurization in microwave desulfurization kettle, and carries out
Filter；
3) material after the filtering that obtains step 2 is transferred to kneader, and to by weight percent in claim 1~7
Remaining raw material of ratio carries out kneading stirring, and mixing speed is set to 40~80 turns/min；
4) is transferred to the material after stirring is mediated in step 3 in extruder, and carries out mixing extruding；
5) will mix the material after extruding by pressing machine and carry out pressing and forming in step 4；
6) cuts into the material after pressing and forming in step 5 by guillotine suitably sized.
It is preferred that, the fineness of the rubber pulverizing in the damping sheets preparation method step 1 is 40~60 mesh, the damping
Temperature in sheet manufacturing process step 3 in kneader is 120~200 DEG C, the kneading of the damping sheets preparation method step 3
The time of stirring is 3~8h, and the temperature in extruder in the damping sheets preparation method step 4 is 200 DEG C.
It is preferred that, the rubber pulverizing in the damping sheets preparation method step 1 uses normal temperature crushing up, and pulverizer is certainly
With groove roller and the ditch smooth roll pulverizer without fluted roller, are first sent the blob of viscose after washing by the conveyer belt on pulverizer
Enter the broken glue of progress between two rollers, blob of viscose and rubber powder after then crushing, which are fallen into the reciprocating screen for crushing motor spindle, to sieve, and reaches
Being fallen from screen cloth for granularity requirements, is passed through in microwave desulfurization kettle；The blob of viscose not up to required, is entered back into pulverizer by stirring
Proceed to crush.
Beneficial effects of the present invention are：Rational raw material selection, rational raw material ratio, obtained utilization is waste and old
Rubber production prevents the damping sheets of resonance, and resistance to elevated temperatures is good, after tested under 150 DEG C of high-temperature work environment, damping fin
Material also can reach conventional service life, in addition, the obtained damping sheets of the present invention be also equipped with big water-tolerant, viscosity, damping and
Noise control sound function.
Brief description of the drawings
Fig. 1 is that the present invention produces the damping sheets process chart for preventing resonance using waste old.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation is described, it is clear that described embodiment is only a part of embodiment of the invention, rather than whole embodiments.It is based on
Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under the premise of creative work is not made
Embodiment, belongs to the scope of protection of the invention.
Embodiment 1
Damping sheets raw material proportioning：Scrap rubber 35%；Penylene BMI 5% between N-N`-；(the β-naphthalene of N-N`- bis-
Base) p-phenylenediamine 0.5%；Thiuram 0.5%；Butyl reclaimed rubber 10%；Rubber oil 11.5%；Carbon black 3%；White carbon 2%；Iron
Powder 20%；Mould inhibitor 0.5%；Tackifier 2%；Clay 3%；Dispersant 2%；Colouring agent 5%.
Wherein, tackifier are terpene resin；Hard (china) clay and soft white clay ratio are 1 in clay:1；Dispersant is modification
Graphene nano filler；Colouring agent is iron oxide.
Embodiment 2
Damping sheets raw material proportioning：Scrap rubber 30%；Penylene BMI 5% between N-N`-；(the β-naphthalene of N-N`- bis-
Base) p-phenylenediamine 0.3%；Thiuram 0.5%；Butyl reclaimed rubber 12%；Rubber oil 11.7%；Carbon black 3%；White carbon 2%；Iron
Powder 14%；Talcum powder 7%；Mould inhibitor 0.5%；Tackifier 2%；Clay 5%；Dispersant 2%；Colouring agent 5%；
Wherein, tackifier are terpene resin and indene resin, using 1:1 mixing；Hard (china) clay and soft white clay ratio in clay
Example is 1:2；Dispersant is modified graphene Nano filling；Colouring agent is titanium dioxide.
Embodiment 3
Damping sheets raw material proportioning：Scrap rubber 32%；Penylene BMI 5% between N-N`-；(the β-naphthalene of N-N`- bis-
Base) p-phenylenediamine 0.3%；Thiuram 0.5%；Butyl reclaimed rubber 10%；Rubber oil 11.7%；Carbon black 2%；White carbon 3%；Iron
Powder 16%；Talcum powder 8%；Mould inhibitor 0.5%；Tackifier 2%；Clay 2%；Dispersant 2%；Colouring agent 5%；
Wherein, tackifier are indene resin and rosin, using 1:1 mixing；Clay is hard (china) clay and soft white clay, using 1:
1 mixing；Dispersant is modified graphene Nano filling；Colouring agent is iron oxide.
Embodiment 4
Damping sheets raw material proportioning：Scrap rubber 35%；Penylene BMI 5% between N-N`-；(the β-naphthalene of N-N`- bis-
Base) p-phenylenediamine 0.3%；Thiuram 0.5%；Butyl reclaimed rubber 12%；Rubber oil 12.7%；Carbon black 2%；White carbon 3%；Iron
Powder 12%；Talcum powder 6%；Mould inhibitor 0.5%；Tackifier 2%；Clay 2%；Dispersant 2%；Colouring agent 5%；
Wherein, tackifier are terpene resin, indene resin and rosin, using 1:1:1 mixing；Clay is hard (china) clay and soft
Clay, using 1:1 mixing；Dispersant is modified graphene Nano filling；Colouring agent is phthalocyanine blue.
In above-mentioned raw materials：
Natural rubber is isoprene copolymer, with excellent resilience, tensile strength, elongation, wearability, tear
Most of synthetic rubber are better than with compression set performance.
Butyl rubber is the copolymer of one kind of synthetic rubber, isobutene and isoprene, with air-tightness it is good, heat-resisting,
Resistance to ozone, ageing-resistant, chemical-resistant resistance, the characteristics of be difficult vulcanization, and there are shock-absorbing, electrical insulation capability.
Butadiene-styrene rubber is the copolymer of butadiene and styrene, and the butylbenzene -10 containing 10% styrene has good cold, contained
The high abrasion resistance of butylbenzene -30 of 30% styrene.
Butadiene rubber is the cis-structure rubber by polymerizing butadiene, and flexible and high abrasion resistance is ageing-resistant
Property it is good, lower temperature resistance is excellent, and caloric value is small under dynamic load, it is easy to metal bonding advantage.
Nitrile rubber is the copolymer of butadiene acrylonitrile, typically contains acrylonitrile 18%, 26% or 40%, content is higher,
Better, but cold resistance is then on the contrary, carboxylic nitrile rubber, wear-resisting, high temperature resistant, oil resistance are excellent for oil resistant, heat-resisting, anti-wear performance
In nitrile rubber.
EP rubbers is ethene, the bipolymer of propylene or ethene, propylene, the ternary polymerization of dienes alkene, resistance to day
Time, resistance to ozone aging, resistance to steam, phosphate ester hydraulic fluid, acid, alkali and rocket fuel and oxidant, electrical insulation capability are excellent.
ACM is a kind of new special rubber grown up in the world, with excellent heat-resisting, oil resistant, resistance to
Cold, ozone proof performance.
Silicon rubber is polysiloxanes, generally have dimethyl silicone rubber, methyl vinyl silicone rubber, methyl phenyl silicone rubber and
This several class of methyl phenyl vinyl silicone rubber, silicon rubber has splendid heat-resisting, cold-resistant, ageing-resistant performance, insulaion resistance, dielectric
The good advantage of excellent, thermal conductivity.
Butyl reclaimed rubber, using more than 900 butyl inner tubes as raw material, using 80 mesh mistakes after state-of-the-art decomposition method technique desulfurization
Filter refining is formed, and with the characteristics of the good, fineness of strength is high, air-tightness is strong, feel is elastic abundant, can be used alone the small butyl of production
The inner tube of a tyre, the butyl rubber product such as butyl capsule, butyl sealing strip also can be with butyl rubber and with the production contour gas of 900 butyl inner tubes
Close property product, can reduce by 25% or so raw material and production cost while product quality is ensured.
Rubber oil is a kind of softening agent, and this requires that itself can have good compatibility, compatibility with rubber, and it is made
With being to improve the elasticity of rubber, pliability, workability, easily mixing property, therefore during rubber processing is improved, it can subtract
The consumption of power is kneaded less, promotes the dispersed of various auxiliary materials, improves the elongation of vulcanizate, elastic processing performance,
It is softening, plasticising, thickening, reinforcement, anti-aging, it is the main function mechanism of rubber oil.
Penylene BMI vulcanizing agent between N-N`-, for making rubber molecular chain crosslink reaction.
N-N`- bis- (betanaphthyl) p-phenylenediamine is age resistor, for resisting, slowing down rubber aging, reduce rubber with
Oxygen is contacted.
Thiuram is accelerator, for promoting dispensing rate of cure, shortens cure time.
Carbon black, the reinforcing agent for doing rubber can improve the hardness and intensity of sizing material.
White Carbon black, i.e. aerosil, with good activity and adsorption rate, reinforcing effect is good, there is very high insulation
Property, water insoluble and sour (except hydrofluoric acid) is dissolved in caustic soda, is not decomposed by high temperature.Its whiteness is good, and being filled in rubber can be substantially
Improve the physical property of sizing material.
Talcum powder is used for rubber, plastics, paint chemical industry and modifies filler as reinforcing, is mainly used in increasing product shape
The stabilization of shape, increases tensile strength, and shear strength, flexing intensity, the intensity of pressure, reduction is deformed, extension rate, thermal coefficient of expansion,
With the characteristics of whiteness is high, epigranular dispersiveness is strong, in the raw material of the present invention, talcum powder complements one another with iron powder.
Tackifier, initial bonding strength and holding power for improving product.
Clay then has freeze thawing resistance, anti-light pollution, sound-absorbing, gas permeability, water penetration, weather resistance, the excellent spy of corrosion resistance
Property.
Modified graphene Nano filling is a kind of dispersant, the function with filling, and also has the effect of softening simultaneously,
This requires that itself can have good compatibility, compatibility with rubber, and it is for the elastic, flexible of improvement rubber that it, which is acted on,
Property, workability, easily mixing property, therefore improve rubber processing during, can reduce mixing power consumption, promote it is various
Dispersed, the processing performance such as elongation, resilience of raising vulcanizate of auxiliary material, and modified graphene Nano filling is used for rubber
Glue, plastics, paint, etc. chemical industry as reinforcing modify filler, be mainly used in increase shape of product stabilization, increase tension force
Intensity, shear strength, flexing intensity, the intensity of pressure, reduction deformation, extension rate, thermal coefficient of expansion is equal with whiteness height, granularity
The characteristics of even dispersiveness is strong, it is softening, plasticising, thickening, reinforcement, anti-aging, it is the main function machine of modified graphene Nano filling
Reason.
Colouring agent, for the material for colouring rubber, makes rubber using effect good.
Refer to shown in Fig. 1, the technical solution adopted by the present invention is：A kind of utilization waste old production prevents the resistance of resonance
Buddhist nun's sheet material, the damping sheets preparation method is as follows：
1) add after is cleaned the scrap rubber raw material of the weight percentage in claim 1 or claim 2
Enter into pulverizer, progress is crushed to certain fineness；
2) material after the crushing that obtains step 1 is transferred to microwave high-temperature desulfurization in microwave desulfurization kettle, and carries out
Filter；
3) material after the filtering that obtains step 2 is transferred to kneader, and to by weight percent in claim 1~7
Remaining raw material of ratio carries out kneading stirring, and mixing speed is set to 40~80 turns/min；
4) is transferred to the material after stirring is mediated in step 3 in extruder, and carries out mixing extruding；
5) will mix the material after extruding by pressing machine and carry out pressing and forming in step 4；
6) cuts into the material after pressing and forming in step 5 by guillotine suitably sized.
In the present invention, rational raw material selection, rational raw material ratio, obtained utilization waste old production
The damping sheets of resonance are prevented, resistance to elevated temperatures is good, and after tested under 150 DEG C of high-temperature work environment, damping sheets are also reachable
To conventional service life, in addition, the damping sheets that the present invention is obtained are also equipped with big water-tolerant, viscosity, damping and noise-proofing work(
Energy.
Although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
Understand and these embodiments can be carried out without departing from the principles and spirit of the present invention a variety of changes, modification, replace
And modification, the scope of the present invention is defined by the appended.
Claims (10)
1. a kind of utilization waste old production prevents the damping sheets of resonance, it is characterised in that：The damping sheets include following
The material of percentage by weight：
Scrap rubber 30~40%
Penylene BMI 5~10% between N-N`-
N-N`- bis- (betanaphthyl) p-phenylenediamine 0.3~1%
Thiuram 0.5~1%
Butyl reclaimed rubber 2~15%
Rubber oil 5~20%
Carbon black 1~5%
White carbon 1~10%
Iron powder 10~40%
Mould inhibitor 0.5~1.5%.
2. utilization waste old production according to claim 1 prevents the damping sheets of resonance, it is characterised in that：The resistance
Scrap rubber in Buddhist nun's sheet material includes natural rubber 5~15%, butyl rubber 5~13%, butadiene-styrene rubber 3~12%, suitable fourth rubber
Glue 4~12%, nitrile rubber 2~10%, EP rubbers 2~13%, ACM 2~10%, polyurethanes 5~
10%th, isoprene rubber 5~10% and silicon rubber 5~10%.
3. utilization waste old production according to claim 1 prevents the damping sheets of resonance, it is characterised in that：The resistance
Buddhist nun's stock material also includes the tackifier that percentage by weight is 2~5%, wherein, described tackifier are terpene resin, indenes tree
One or two kinds of in fat and rosin.
4. utilization waste old production according to claim 1 prevents the damping sheets of resonance, it is characterised in that：The resistance
Buddhist nun's stock material also includes the clay that percentage by weight is 1~5%, and described clay includes hard (china) clay and soft white clay,
Wherein, the percentage by weight that hard (china) clay accounts for clay is 30~60%.
5. utilization waste old production according to claim 1 prevents the damping sheets of resonance, it is characterised in that：The resistance
Buddhist nun's stock material also includes the talcum powder that percentage by weight is 5~20%, wherein, described talcum powder and the weight hundred of iron powder
The ratio for dividing ratio is 1:2.
6. utilization waste old production according to claim 1 prevents the damping sheets of resonance, it is characterised in that：The resistance
Buddhist nun's stock material also includes the dispersant that percentage by weight is 2~5%, wherein, described dispersant is received for modified graphene
Rice filler.
7. utilization waste old production according to claim 1 prevents the damping sheets of resonance, it is characterised in that：The resistance
Buddhist nun's stock material also includes the colouring agent that percentage by weight is 5~8%, wherein, described colouring agent is iron oxide, phthalocyanine blue
With one kind in titanium dioxide.
8. a kind of utilization waste old production according to claim 1 prevents the damping sheets of resonance, it is characterised in that：Institute
State damping sheets preparation method as follows：
1) is added to after the scrap rubber raw material of the weight percentage in claim 1 or claim 2 are cleaned
In pulverizer, progress is crushed to certain fineness；
2) material after the crushing that obtains step 1 is transferred to microwave high-temperature desulfurization in microwave desulfurization kettle, and is filtered；
3) material after the filtering that obtains step 2 is transferred to kneader, and to by percentage by weight in claim 1~7
Remaining raw material carries out kneading stirring, and mixing speed is set to 40~80 turns/min；
4) is transferred to the material after stirring is mediated in step 3 in extruder, and carries out mixing extruding；
5) will mix the material after extruding by pressing machine and carry out pressing and forming in step 4；
6) cuts into the material after pressing and forming in step 5 by guillotine suitably sized.
9. a kind of utilization waste old production according to claim 8 prevents the damping sheets of resonance, it is characterised in that：Institute
The fineness for stating the rubber pulverizing in damping sheets preparation method step 1 is 40~60 mesh, the damping sheets preparation method step 3
Temperature in middle kneader is 120~200 DEG C, time of the kneading stirring of the damping sheets preparation method step 3 for 3~
The temperature in extruder in 8h, the damping sheets preparation method step 4 is 200 DEG C.
10. a kind of utilization waste old production according to claim 8 prevents the damping sheets of resonance, it is characterised in that：
Rubber pulverizing in the damping sheets preparation method step 1 uses normal temperature crushing up, and pulverizer is to carry groove roller and nothing
The ditch smooth roll pulverizer of fluted roller, the blob of viscose after washing is sent between two rollers carry out first by the conveyer belt on pulverizer
Broken glue, then will it is broken after blob of viscose and rubber powder fall into the reciprocating screen for crushing motor spindle and sieve, reach granularity requirements from sieve
Net is fallen, and is passed through in microwave desulfurization kettle；The blob of viscose not up to required, is entered back into pulverizer by stirring and proceeds to crush.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710320096.3A CN106957462A (en) | 2017-05-09 | 2017-05-09 | A kind of utilization waste old production prevents the damping sheets of resonance |
Applications Claiming Priority (1)
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107383635A (en) * | 2017-08-11 | 2017-11-24 | 安徽润康橡塑科技股份有限公司 | A kind of rubber catheter lock ring |
| CN107599301A (en) * | 2017-09-15 | 2018-01-19 | 珠海格力电器股份有限公司 | A kind of assembly method of damping rubber block, assembly equipment and damping rubber block |
| CN109233034A (en) * | 2018-08-29 | 2019-01-18 | 芜湖利通新材料有限公司 | A kind of outdoor machine of air-conditioner is formulated with rubber absorbers |
| CN110804221A (en) * | 2019-11-27 | 2020-02-18 | 安徽微威胶件集团有限公司 | Special rubber material for building shock insulation support and preparation method thereof |
| CN111978607A (en) * | 2020-09-14 | 2020-11-24 | 江苏金宇防腐科技有限公司 | Production process and method of high-elasticity damping rubber |
| CN112341790A (en) * | 2020-09-16 | 2021-02-09 | 常州工程职业技术学院 | Multilayer damping fin for waste rubber powder vehicle and preparation method thereof |
| CN113444297A (en) * | 2021-07-22 | 2021-09-28 | 安徽誉林汽车部件有限公司 | Production process of hydraulic bushing rubber |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102924832A (en) * | 2012-10-22 | 2013-02-13 | 广德天运无纺有限公司 | Resonance damping material produced by using waste rubber |
| CN105801954A (en) * | 2016-04-20 | 2016-07-27 | 广德天运新技术股份有限公司 | Damper sheet produced by waste rubber |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102924832A (en) * | 2012-10-22 | 2013-02-13 | 广德天运无纺有限公司 | Resonance damping material produced by using waste rubber |
| CN105801954A (en) * | 2016-04-20 | 2016-07-27 | 广德天运新技术股份有限公司 | Damper sheet produced by waste rubber |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107383635A (en) * | 2017-08-11 | 2017-11-24 | 安徽润康橡塑科技股份有限公司 | A kind of rubber catheter lock ring |
| CN107599301A (en) * | 2017-09-15 | 2018-01-19 | 珠海格力电器股份有限公司 | A kind of assembly method of damping rubber block, assembly equipment and damping rubber block |
| CN109233034A (en) * | 2018-08-29 | 2019-01-18 | 芜湖利通新材料有限公司 | A kind of outdoor machine of air-conditioner is formulated with rubber absorbers |
| CN110804221A (en) * | 2019-11-27 | 2020-02-18 | 安徽微威胶件集团有限公司 | Special rubber material for building shock insulation support and preparation method thereof |
| CN111978607A (en) * | 2020-09-14 | 2020-11-24 | 江苏金宇防腐科技有限公司 | Production process and method of high-elasticity damping rubber |
| CN112341790A (en) * | 2020-09-16 | 2021-02-09 | 常州工程职业技术学院 | Multilayer damping fin for waste rubber powder vehicle and preparation method thereof |
| CN112341790B (en) * | 2020-09-16 | 2022-04-01 | 常州工程职业技术学院 | Multilayer damping fin for waste rubber powder vehicle and preparation method thereof |
| CN113444297A (en) * | 2021-07-22 | 2021-09-28 | 安徽誉林汽车部件有限公司 | Production process of hydraulic bushing rubber |
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Application publication date: 20170718 |