CN106519706A - Nano hollow particle-containing nitrile rubber composite damping material for automobile and preparation method of nitrile rubber composite damping material - Google Patents
Nano hollow particle-containing nitrile rubber composite damping material for automobile and preparation method of nitrile rubber composite damping material Download PDFInfo
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- CN106519706A CN106519706A CN201610882514.3A CN201610882514A CN106519706A CN 106519706 A CN106519706 A CN 106519706A CN 201610882514 A CN201610882514 A CN 201610882514A CN 106519706 A CN106519706 A CN 106519706A
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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
- C08L87/00—Compositions of unspecified macromolecular compounds, obtained otherwise than by polymerisation reactions only involving unsaturated carbon-to-carbon bonds
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F279/00—Macromolecular compounds obtained by polymerising monomers on to polymers of monomers having two or more carbon-to-carbon double bonds as defined in group C08F36/00
- C08F279/02—Macromolecular compounds obtained by polymerising monomers on to polymers of monomers having two or more carbon-to-carbon double bonds as defined in group C08F36/00 on to polymers of conjugated dienes
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G81/00—Macromolecular compounds obtained by interreacting polymers in the absence of monomers, e.g. block polymers
- C08G81/02—Macromolecular compounds obtained by interreacting polymers in the absence of monomers, e.g. block polymers at least one of the polymers being obtained by reactions involving only carbon-to-carbon unsaturated bonds
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/011—Nanostructured additives
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Abstract
The invention discloses a nano hollow particle-containing nitrile rubber composite damping material for an automobile. The nitrile rubber composite damping material is prepared from the following raw materials in parts by weight: 42 to 58 parts of nitrile rubber, 25 to 37 parts of chlorinated butyl rubber, 128 to 160 parts of tetrahydrofuran, 42 to 63 parts of maleic anhydride, 2 to 6 parts of benzoyl peroxide, a proper amount of ethanol, 1 to 3 parts of sodium hypophosphite hydroxide, a proper amount of xylene, 26 to 33 parts of soft wood cellulose, 1 to 2 parts of stearic acid, 2 to 8 parts of carbon black, 1 to 2 parts of sulphur, 5 to 9 parts of nano hollow particle and 0.8 to 2 parts of silane coupling agent. In the invention, the nitrile rubber is grafted by using the maleic anhydride, and then is grafted and compounded with the soft wood cellulose; on one hand, internal friction resistance of rubber molecular chain movement is enhanced, and the damping performance of the material is enhanced; on the other hand, the sound absorption and noise reducing performance of the damping material is improved by utilizing the characteristics of the soft wood cellulose, and the nitrile rubber damping material with the excellent damping and noise reducing performance is prepared.
Description
Technical field
The invention belongs to auto parts preparation field, and in particular to a kind of nitrile rubber of automobile containing nano-hollow particle
Composite damping material and preparation method thereof.
Background technology
Damping material is that a kind of material of damping noise reduction developed in recent years can be converted into heat vibration and acoustic energy
The new function material that can be dissipated, extensively applies in various plant equipment, front panel especially in the automobile seat room, car
There is application at the 8-12 position such as door, car roof, car bottom plate, boot, therefore researches and develops the new of excellent combination property
Efficient Damping material has become the focus of domestic and international concern.
What Tian Min, Lu et al. were delivered《The preparation and performance study of blending type wide temperature zone high damping elastomeric material》One is literary
In, using having intensive pending methyl group, the chlorinated scoline of low pole to be blended with highly polar nitrile rubber in molecular structure, make
Binary CIIR/NBR blend is obtained, due to sterically hindered effect big in low pole rubber structure and the pressure after vulcanization crosslinking
Winding, it will increase the internal friction resistance of polar rubber strand activity, cause molecular chain movement to be obstructed, prepare wide temperature range
Damping material.
In nature, cork is a kind of very excellent material of damping performance, and it is the crust product of cork tree, is had
The performances such as good elasticity, sealing, heat-insulated, sound insulation, insulation, wear-resisting, corrosion resistance, protection against the tide, fire prevention, damping, can be used as ground
Plate, bottle stopper and woodwind instrument sealing gasket, packaging and energy absorbing material, heat-barrier material, damping damping material etc., are a kind of many work(
Can natural material.
Therefore, the present invention is grafted nitrile rubber using maleic anhydride, compounds with cork fibrous grafting then, on the one hand strengthens
On the other hand the internal friction resistance of rubber molecular chain activity, the damping capacity of reinforcing material is improved using the characteristic of cork fibrous
The sqouynd absorption lowering noise performance of damping material, prepares a kind of nitrile rubber damping material of damping noise reduction excellent performance.
The content of the invention
The invention aims to solve the problems, such as that existing damping material damping, sound absorbing capabilities are not enough, there is provided a kind of vapour
Automobile-used nitrile rubber composite damping material containing nano-hollow particle and preparation method thereof.
A kind of nitrile rubber composite damping material of automobile containing nano-hollow particle, by the raw material group of following weight portion
Into：Nitrile rubber 42-58 parts, chlorinated scoline 25-37 parts, tetrahydrofuran 128-160 parts, maleic anhydride 42-63 parts, peroxide
Change benzoyl 2-6 parts, appropriate amount of ethanol, hydroxide sodium hypophosphite 1-3 parts, appropriate dimethylbenzene, cork fibrous 26-33 parts, stearic acid
1-2 parts, white carbon black 2-8 parts, sulfur 1-2 parts, nano-hollow particle 5-9 parts, silane coupler 0.8-2 parts；
Described nano-hollow particle is made up of the raw material of following weight portion：Nano-hollow titanium dioxide 1-3 parts, nanometer titanium dioxide
Silicon 2-3 parts, nano-hollow borsal 2-3 parts.
Comprise the following steps that：
（1）Maleic anhydride is grafted nitrile rubber（MAH-g-NBR）Preparation：
Nitrile rubber is dissolved completely in tetrahydrofuran, maleic anhydride is added dropwise over benzoyl peroxide with Dropping funnel
Mixed solution, is passed through nitrogen protection, is warming up to 60-72 DEG C, and isothermal reaction 6-9 hours go out graft product with ethanol precipitation afterwards,
With washing with alcohol for several times, the graft product after washing is placed in 38-45 DEG C of vacuum drying oven and is dried, that is, obtain MAH-g-NBR,
It is standby；
（2）MAH-g-NBR is grafted cork fibrous：
Dimethylbenzene, hydroxide sodium hypophosphite and step is added in the boiling flask equipped with condensing tube（1）The MAH-g- for obtaining
NBR, afterwards by the abundant cork fibrous immersion mixed solution being dried, control temperature reacts 2-4 hours at 125-140 DEG C,
After the completion of reaction, solvent is removed with Soxhlet extractor, dried to constant weight in 95-105 DEG C, obtain final product MAH-g-NBR grafting corks fine
Dimension；
（3）Mixing：
1., by nano-hollow titanium dioxide, nano silicon, nano-hollow borsal mix homogeneously, afterwards by silane idol
Connection agent even application nano-hollow surface of inorganic particles upon mixing, drying for standby；
2., under the conditions of 20-30 DEG C, by step（2）The MAH-g-NBR for obtaining is grafted cork fibrous, chlorinated scoline mixing
Uniformly plasticate on a mill 3-8 minutes；
3., it is subsequently adding the nano-hollow inorganic particulate mixing of the Jing silane coupler pretreatment of stearic acid, white carbon black and 1/2
10-30 minutes, remaining nano-hollow inorganic particulate mixing 8-15 minutes are added afterwards, sulfur mixing is added uniformly, is prepared
Obtain elastomeric compound；
（4）Sulfuration：
By step（3）7-9 hours are stood after the thin pass-out piece of resulting elastomeric compound, on vulcanizing press at 160-190 DEG C
Hot press moulding vulcanizes 20-40 minutes, and a kind of nitrile rubber composite damping material of automobile containing nano-hollow particle is obtained.
Wherein, described cork fibrous are formed with the white softwood pulp plate mechanical dissociation of useless industrial source and dispersion, its length
Distribution 2mm-3.5mm, width distribution are 34.2 μm -73.1 μm, and length-width ratio is 72.6.
Compared with prior art, the present invention has advantages below：
（1）The present invention carries out graft modification first by maleic anhydride monomer to nitrile rubber, changes the polarity of nitrile rubber, increases
The internal friction resistance of additive polarity nitrile rubber strand activity, causes molecular chain movement to be obstructed, and molecule interchain frictional heat increases,
Damping capacity is more excellent.
（2）There are many gauffers on cork cell wall, can greatly alleviate compression, therefore elastic return is special
Good, the special cellularity of cork fibrous can weaken flat ripple and propagate in addition, enable in particular to the propagation of noise-reducing sound wave, thus soft
The sound absorption properties of wood utilizes this characteristic of cork fibrous very well in the present invention, be grafted nitrile rubber using maleic anhydride（MAH-g-
NBR）Cork fibrous are carried out with graft modification, the compatibility of the cork fibrous in rubber matrix is improved, subtracting for damping material is improved
Shake, sqouynd absorption lowering noise performance, can be effectively improved the comfort level of environment inside car, be conducive to the physical and mental health of people.
（3）The present invention is using the nano-hollow inorganic particulate Jing after silane coupler process so as to dispersed and cladding
In base rubber, so as to control the storage moduluss of material, product density, when load is born, with good energy absorption
Ability, improves the fissipation factor of product, and damping capacity is strong.
Specific embodiment
A kind of nitrile rubber composite damping material of automobile containing nano-hollow particle, by the raw material group of following weight portion
Into：Nitrile rubber 55, chlorinated scoline 35, tetrahydrofuran 150, maleic anhydride 60, benzoyl peroxide 4, appropriate amount of ethanol, hydrogen
Oxidation sodium hypophosphite 3, appropriate dimethylbenzene, cork fibrous 30, stearic acid 2, white carbon black 4, sulfur 2, nano-hollow particle 8, silane idol
Connection agent 1；
Described nano-hollow particle is made up of the raw material of following weight portion：Nano-hollow titanium dioxide 3, nano silicon 2,
Nano-hollow borsal 3.
Comprise the following steps that：
（1）Maleic anhydride is grafted nitrile rubber（MAH-g-NBR）Preparation：
Nitrile rubber is dissolved completely in tetrahydrofuran, maleic anhydride is added dropwise over benzoyl peroxide with Dropping funnel
Mixed solution, is passed through nitrogen protection, is warming up to 70 DEG C, and isothermal reaction 8 hours goes out graft product with ethanol precipitation afterwards, uses second
Alcohol is washed for several times, the graft product after washing is placed in 40 DEG C of vacuum drying ovens and is dried, that is, obtain MAH-g-NBR, standby；
（2）MAH-g-NBR is grafted cork fibrous：
Dimethylbenzene, hydroxide sodium hypophosphite and step is added in the boiling flask equipped with condensing tube（1）The MAH-g- for obtaining
NBR, afterwards by the abundant cork fibrous immersion mixed solution being dried, control temperature is reacted 3 hours at 130 DEG C, has reacted
Cheng Hou, removes solvent with Soxhlet extractor, dries to constant weight in 100 DEG C, obtains final product MAH-g-NBR grafting cork fibrous；
（3）Mixing：
1., by nano-hollow titanium dioxide, nano silicon, nano-hollow borsal mix homogeneously, afterwards by silane idol
Connection agent even application nano-hollow surface of inorganic particles upon mixing, drying for standby；
2., under the conditions of 28 DEG C, by step（2）The MAH-g-NBR for obtaining is grafted cork fibrous, chlorinated scoline mix homogeneously
Plasticate on a mill 7 minutes；
3., it is subsequently adding the nano-hollow inorganic particulate mixing 28 of the Jing silane coupler pretreatment of stearic acid, white carbon black and 1/2
Minute, add remaining nano-hollow inorganic particulate to knead afterwards 13 minutes, add sulfur mixing uniformly, be prepared into mixing
Glue；
（4）Sulfuration：
By step（3）After the thin pass-out piece of resulting elastomeric compound stand 8 hours, on vulcanizing press at 170 DEG C high temperature mould
Pressure sulfuration 30 minutes, is obtained a kind of nitrile rubber composite damping material of automobile containing nano-hollow particle.
Wherein, described cork fibrous are formed with the white softwood pulp plate mechanical dissociation of useless industrial source and dispersion, its length
Distribution 2mm-3.5mm, width distribution are 34.2 μm -73.1 μm, and length-width ratio is 72.6.
Performance test：
Prepare according to embodiment and its material is tested, it is as a result as follows：
Density：1.169g/cm3, damping performance（23 DEG C, 200HZ）：0.17, fracture elongation：582%, tensile strength：
137Mpa, resistance to ag(e)ing：4 grades, light fastness aging：4 grades, roll processability：Well.
Claims (3)
1. a kind of automobile with containing nano-hollow particle nitrile rubber composite damping material, it is characterised in that by following weight portion
Raw material composition：Nitrile rubber 42-58 parts, chlorinated scoline 25-37 parts, tetrahydrofuran 128-160 parts, maleic anhydride 42-
63 parts, benzoyl peroxide 2-6 parts, appropriate amount of ethanol, hydroxide sodium hypophosphite 1-3 parts, appropriate dimethylbenzene, cork fibrous 26-33
Part, stearic acid 1-2 parts, white carbon black 2-8 parts, sulfur 1-2 parts, nano-hollow particle 5-9 parts, silane coupler 0.8-2 parts；
Described nano-hollow particle is made up of the raw material of following weight portion：Nano-hollow titanium dioxide 1-3 parts, nanometer titanium dioxide
Silicon 2-3 parts, nano-hollow borsal 2-3 parts.
2. a kind of automobile according to claims 1 with containing nano-hollow particle nitrile rubber composite damping material system
Preparation Method, it is characterised in that comprise the following steps that：
（1）Maleic anhydride is grafted nitrile rubber（MAH-g-NBR）Preparation：
Nitrile rubber is dissolved completely in tetrahydrofuran, maleic anhydride is added dropwise over benzoyl peroxide with Dropping funnel
Mixed solution, is passed through nitrogen protection, is warming up to 60-72 DEG C, and isothermal reaction 6-9 hours go out graft product with ethanol precipitation afterwards,
With washing with alcohol for several times, the graft product after washing is placed in 38-45 DEG C of vacuum drying oven and is dried, that is, obtain MAH-g-NBR,
It is standby；
（2）MAH-g-NBR is grafted cork fibrous：
Dimethylbenzene, hydroxide sodium hypophosphite and step is added in the boiling flask equipped with condensing tube（1）The MAH-g- for obtaining
NBR, afterwards by the abundant cork fibrous immersion mixed solution being dried, control temperature reacts 2-4 hours at 125-140 DEG C,
After the completion of reaction, solvent is removed with Soxhlet extractor, dried to constant weight in 95-105 DEG C, obtain final product MAH-g-NBR grafting corks fine
Dimension；
（3）Mixing：
1., by nano-hollow titanium dioxide, nano silicon, nano-hollow borsal mix homogeneously, afterwards by silane idol
Connection agent even application nano-hollow surface of inorganic particles upon mixing, drying for standby；
2., under the conditions of 20-30 DEG C, by step（2）The MAH-g-NBR for obtaining is grafted cork fibrous, chlorinated scoline mixing
Uniformly plasticate on a mill 3-8 minutes；
3., it is subsequently adding the nano-hollow inorganic particulate mixing of the Jing silane coupler pretreatment of stearic acid, white carbon black and 1/2
10-30 minutes, remaining nano-hollow inorganic particulate mixing 8-15 minutes are added afterwards, sulfur mixing is added uniformly, is prepared
Obtain elastomeric compound；
（4）Sulfuration：
By step（3）7-9 hours are stood after the thin pass-out piece of resulting elastomeric compound, on vulcanizing press at 160-190 DEG C
Hot press moulding vulcanizes 20-40 minutes, and a kind of nitrile rubber composite damping material of automobile containing nano-hollow particle is obtained.
3. the nitrile rubber composite damping material of a kind of automobile according to claims 1,2 containing nano-hollow particle
Preparation method, it is characterised in that described cork fibrous are formed with the white softwood pulp plate mechanical dissociation of useless industrial source and dispersion,
Its length distribution range 2mm-3.5mm, width distribution are 34.2 μm -73.1 μm, and length-width ratio is 72.6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610882514.3A CN106519706A (en) | 2016-10-10 | 2016-10-10 | Nano hollow particle-containing nitrile rubber composite damping material for automobile and preparation method of nitrile rubber composite damping material |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610882514.3A CN106519706A (en) | 2016-10-10 | 2016-10-10 | Nano hollow particle-containing nitrile rubber composite damping material for automobile and preparation method of nitrile rubber composite damping material |
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| CN106519706A true CN106519706A (en) | 2017-03-22 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2796369C1 (en) * | 2022-03-21 | 2023-05-22 | Акционерное общество "Чебоксарское производственное объединение имени В.И. Чапаева" | Composite rubber mixture for vibration-damping coatings |
| CN116141703A (en) * | 2023-04-18 | 2023-05-23 | 天津爱思达航天科技股份有限公司 | Polyurethane toughened epoxy damping composite material and preparation method thereof |
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| CN102229724A (en) * | 2011-06-20 | 2011-11-02 | 华南理工大学 | Ternary rubber composite with wide temperature range and high damping property and preparation method thereof |
| CN104788836A (en) * | 2015-03-29 | 2015-07-22 | 安徽微威胶件集团有限公司 | Preparation method of high-damping rubber material |
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2016
- 2016-10-10 CN CN201610882514.3A patent/CN106519706A/en not_active Withdrawn
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| CN102229724A (en) * | 2011-06-20 | 2011-11-02 | 华南理工大学 | Ternary rubber composite with wide temperature range and high damping property and preparation method thereof |
| CN104788836A (en) * | 2015-03-29 | 2015-07-22 | 安徽微威胶件集团有限公司 | Preparation method of high-damping rubber material |
| CN105315521A (en) * | 2015-11-13 | 2016-02-10 | 航天材料及工艺研究所 | High-damping material for high-temperature co-curing with composite material and preparation method of high-damping material |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2796369C1 (en) * | 2022-03-21 | 2023-05-22 | Акционерное общество "Чебоксарское производственное объединение имени В.И. Чапаева" | Composite rubber mixture for vibration-damping coatings |
| RU2796369C9 (en) * | 2022-03-21 | 2023-07-11 | Акционерное общество "Чебоксарское производственное объединение имени В.И. Чапаева" | Composite rubber mixture for vibration-damping coatings |
| CN116141703A (en) * | 2023-04-18 | 2023-05-23 | 天津爱思达航天科技股份有限公司 | Polyurethane toughened epoxy damping composite material and preparation method thereof |
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