CN106366613A - Material with effects of insulating sound and reducing noise and preparation method of material - Google Patents
Material with effects of insulating sound and reducing noise and preparation method of material Download PDFInfo
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- CN106366613A CN106366613A CN201610990037.2A CN201610990037A CN106366613A CN 106366613 A CN106366613 A CN 106366613A CN 201610990037 A CN201610990037 A CN 201610990037A CN 106366613 A CN106366613 A CN 106366613A
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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
- C08K13/00—Use of mixtures of ingredients not covered by one single of the preceding main groups, each of these compounds being essential
- C08K13/02—Organic and inorganic ingredients
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/04—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent
- C08J9/06—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a chemical blowing agent
- C08J9/10—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a chemical blowing agent developing nitrogen, the blowing agent being a compound containing a nitrogen-to-nitrogen bond
- C08J9/102—Azo-compounds
- C08J9/103—Azodicarbonamide
-
- 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
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
-
- 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
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/34—Silicon-containing compounds
- C08K3/36—Silica
-
- 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
- C08K5/00—Use of organic ingredients
- C08K5/54—Silicon-containing compounds
- C08K5/549—Silicon-containing compounds containing silicon in a ring
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2203/00—Foams characterized by the expanding agent
- C08J2203/04—N2 releasing, ex azodicarbonamide or nitroso compound
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2369/00—Characterised by the use of polycarbonates; Derivatives of polycarbonates
-
- 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
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2227—Oxides; Hydroxides of metals of aluminium
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- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
- Soundproofing, Sound Blocking, And Sound Damping (AREA)
Abstract
The invention belongs to the field of functional materials, and in particular relates to a material with the effects of insulating sound and reducing noise and a preparation method of the material. The invention provides the material with the effects of insulating sound and reducing noise. The material is prepared from a silicone rubber pyrolysis product, polycarbonate, a vulcanizing agent, silicon oxide, aluminum oxide, a foaming agent and a foaming aid; the material is loose and porous, can be used for effectively absorbing and scattering sound waves, has the effects of cushioning impact, insulating sound, eliminating noise and the like, and can be effectively applied to sound insulation and noise reduction of fields such as industry, military affairs, civil buildings and the like. The invention also provides the preparation method of the material with the effects of insulating sound and reducing noise. The method is simple and convenient in manufacturing technique and simple in process. According to the material and the preparation method disclosed by the invention, waste silicone rubber in waste insulator angle leftovers is used as a raw material of the silicone rubber pyrolysis product; no rare materials are used; the adopted raw materials are low in cost; besides, the problem of a way out for the waste silicone rubber is well solved, wastes are changed into valuables, and the production cost is reduced.
Description
Technical field
The invention belongs to field of functional materials is and in particular to a kind of material of sound insulation and noise reduction and preparation method thereof.
Background technology
In recent years, with scientific and technological progress, socio-economic development and growth in the living standard, urban power consumption increases year by year
Plus, electric power system is to improve power supply reliability, the productive life of the guarantee people further, has built in city or outskirts of a town and has been permitted
Multi-Substation and transmission line of electricity, improve the living standard of the city people.However, the low-frequency noise of high voltage substation also because
Its acoustical behavior is special, be difficult to eliminate, and part transformer station noise causes different degrees of impact to nearby residents life, thus draws
The dispute rising becomes cumulative year after year trend.Therefore, a kind of novel sound acoustic damping materials and preparation method thereof are worked out, in order to solve height
The low-frequency noise pollution problem of buckling power station surrounding enviroment, is the technical problem that those skilled in the art are badly in need of solving.
Content of the invention
In view of this, the present invention be directed to high voltage substation low-frequency noise problem, propose a kind of sound insulation and noise reducing material and its
Preparation method.Concrete technical scheme of the present invention is as follows:
The invention provides a kind of sound insulation and noise reducing material, by weight percentage, comprise following components:
Merlon 12-14%；Vulcanizing agent 3-5%；Silicon oxide 4-6%；Aluminium oxide 5-7%；Foaming agent 5-7%；Foaming
Auxiliary agent 1-2%；Balance of silicon rubber cracking product.
Preferably, described vulcanizing agent includes: dibenzoyl peroxide.
Preferably, described foaming agent includes for azo: diformamide or n, n- dinitroso-five methine tetramine.
Preferably, described blowing promotor includes: carbamide.
Present invention also offers a kind of preparation method of sound insulation and noise reducing material, comprising:
A) described Merlon is heated to molten condition, adds described aluminium oxide, silicon oxide and silicon rubber cracking product,
Stirring, obtains compound slurry；
B) add described vulcanizing agent to be mixed toward in described compound slurry, add foaming agent and blowing promotor is carried out
Mix, add in mould, foaming, cooling, the demoulding, obtain described novel sound noise reduction composite.
Preferably, the melt temperature of Merlon described in step a) is 100-230 DEG C；
Described mixing carries out constant temperature stirring 5min under the conditions of 110-150 DEG C.
Preferably, the temperature of the described foaming of step b) is 150-180 DEG C, and the time of described foaming is 10-15min；Described
The temperature of cooling is -60 DEG C to -80 DEG C, and the time of described cooling is 4-7min.
Preferably, described silicon rubber cracking product is the product obtaining after silicone rubber is cleared up with sulfuric acid solution.
Preferably, the described temperature cleared up is 125-130 DEG C, and the described time cleared up is 18-20min.
Preferably, the mass percent concentration of described sulfuric acid solution is 20-40%.
Preferably, described silicone rubber is the silicone rubber powder of 40-200 mesh；Described silicone rubber powder and described sulfuric acid solution
Ratio be (15-16) g:(6-12) ml.
Preferably, described silicone rubber powder is dried at being placed in 100-105 DEG C after the cleaned surface blot of waste silicone rubber
2-4h, the product obtaining after then being pulverized.
The invention provides a kind of sound insulation and noise reduction material, this material is loose porous, can effectively absorb and scattered sound waves, have
Relax the effect such as impact, sound insulation, noise elimination, the sound insulation and noise reduction in the fields such as industry, military affairs, civil buildings can be efficiently applied to；This
The bright preparation method additionally providing above-mentioned sound insulation and noise reduction material, the method manufacturing process is easy, and process is simple；In process of the present invention
In, using the waste silicone rubber in retired insulator corner material as silicon rubber cracking product raw material, not using your material dilute,
The cost of raw material being taken is cheap, and solves the problem of outlet of retired insulator silicon rubber very well it is achieved that turning waste into wealth,
Reduce production cost.
Brief description
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
Have technology description in required use accompanying drawing be briefly described it should be apparent that, drawings in the following description be only this
Inventive embodiment, for those of ordinary skill in the art, on the premise of not paying creative work, can also basis
The accompanying drawing providing obtains other accompanying drawings.
A kind of pictorial diagram of sound insulation and noise reducing material that Fig. 1 is provided by embodiment 1；
A kind of internal void figure of sound insulation and noise reducing material that Fig. 2 is provided by embodiment 1.
Specific embodiment
Below in conjunction with the specific embodiment of the invention, technical scheme is clearly and completely described it is clear that
Described embodiment is a part of embodiment of the present invention, rather than whole embodiments.Those skilled in the art should manage
Solution, modifies to the specific embodiment of the present invention or some technical characteristics is replaced on an equal basis, without deviating from the present invention
The spirit of technical scheme, all should cover in the scope of protection of the invention.
The invention provides a kind of sound insulation and noise reducing material, by weight percentage, comprise: Merlon 12-14%；Sulfuration
Agent 3-5%；Silicon oxide 4-6%；Aluminium oxide 5-7%；Foaming agent 5-7%；Blowing promotor 1-2%；Balance of silicon rubber cracking produces
Thing.Described vulcanizing agent includes: dibenzoyl peroxide；Described foaming agent includes: azodicarbonamide or n, n- dinitroso-five
Methine tetramine；Described blowing promotor includes: carbamide.
Wherein, azodicarbonamide or n, n- dinitroso-five methine tetramine acts primarily as foaming effect, diphenyl peroxide
Formyl plays sulfurization, and the sound insulation and noise reducing material after air dry cure is the microporous materials with excellent mechanical property, has height
Dielectric properties, resistance to surface leakage, the superior isolation material of resistance to electric arc.Generally, the epoxy-resin systems after solidification have excellent
Acidproof, the alkaline-resisting and energy of resistance to dissolubility, additionally has prominent dimensional stability and durability；Meanwhile, the epoxy resin body of solidification
It is resistance to most of mycete, be adapted to extreme natural environment.The inorganic material such as composite oxide material aluminium oxide, silicon oxide are no
Smelly, tasteless, matter is hard, is preferable rubber reinforcement material, and composite experiences high temperature and foams the process of rapid cooling, is formed loose many
Porous materials, can effectively absorb and scattered sound waves, form SATT, thus reaching the purpose of sound insulation and noise reducing in micropore.
For realizing the optimal performance of this sound insulation and noise reducing material, various to this material in the specific implementation process of the present invention
The content of component is optimized.By weight percentage, described Merlon is preferably 10-13%；Vulcanizing agent is preferably 9-
16%；Silicon oxide 4-7%；Aluminium oxide 4-7%；Foaming agent 2-5%；Blowing promotor 1-2%；Balance of silicon rubber cracking product.
In embodiments of the present invention, the preparation method of described silicon rubber cracking product, comprising: add sulphuric acid toward in silicone rubber
Solution is cleared up.After silicone rubber carries out clearing up 20min with 130 DEG C in micro-wave diminishing pot, described silica gel has cracked substantially
Entirely, obtained pyrolysis product is mainly isobutylene silane mixture [(ch3)2Sio] n (n=4-20) with its crack residual
Slag.Wherein, the mass percent concentration of described sulfuric acid solution is 20-40%；Described silicone rubber is retired high-tension insulator through cutting
Cut the silicon rubber umbrella skirt after stripping, be then respectively washed 15min under ultrasound condition with pickling, alkali cleaning, clear water respectively, wash
Dry under the conditions of 105 DEG C after removing full skirt surface blot, by shear crusher, it is just broken to after clastic, is placed in pulverizing
Crush 5 minutes under the conditions of 3600 turns/min in machine, obtain 10～200 mesh silicone rubber powders, standby.It is preferable to carry out in the present invention
In example, the particle diameter of described silicone rubber powder is 40 mesh, and the mass percent concentration of described sulfuric acid solution is preferably 30%.
Present invention also offers a kind of preparation method of sound insulation and noise reducing material, comprising:
1) preparation of Merlon: Merlon is heated to 200-230 DEG C under nitrogen protective condition and obtains molten
The Merlon of state, standby；
2) preparation of aluminium oxide and silicon oxide: described aluminium oxide, silicon oxide are powder body, particle diameter is 200-300 micron,
Standby.
3) prepare compound slurry: toward step 1) in gained Merlon in add the cracking of retired insulator silicon rubber
Product, silicon oxide and aluminium oxide, turned in 100-200 with mechanical agitator under the conditions of temperature conditionss are for 110-150 DEG C/min
Rotating speed stirs 5min, obtains compound slurry；
4) prepare sound insulation and noise reducing material: add described vulcanizing agent to be mixed toward in above-mentioned composite pulp shape thing, add and send out
Infusion and blowing promotor are mixed, then are added in mould, and furnace temperature is adjusted to 170 DEG C about foaming 10-15 minutes, will
It transfers to freezing 4-7 minute under -60 DEG C to -80 DEG C of temperature conditionss, obtains described sound insulation and noise reducing material after being removed from the molds
Material.
Wherein, in order that described vulcanizing agent, foaming agent, blowing promotor and above-mentioned compound slurry preferably mix homogeneously,
Technical solution of the present invention, in specific implementation process, dibenzoyl peroxide is added to above-mentioned composite pulp shape thing, in temperature
Condition is 130 DEG C, be stirred 5min under 200r/min stirring condition after, then be separately added into foaming agent azodicarbonamide, send out
Bubble auxiliary agent carbamide uniform stirring about 1 minute about.
The inventive method manufacturing process is easy, and process is simple；In process of the present invention, using in retired insulator corner material
, as the raw material of silicon rubber cracking product, not using your material dilute, the cost of raw material being taken is cheap for waste silicone rubber, and
Solving the problem of outlet of retired insulator silicon rubber very well it is achieved that turning waste into wealth, reducing production cost.By institute of the present invention
The sound insulation and noise reduction material that obtains of preparation method providing experiences high temperature and foams the process of rapid cooling, loose porous, can effectively absorb
And scattered sound waves, there is the effects such as mitigation impact, sound insulation, noise elimination, the fields such as industry, military affairs, civil buildings can be efficiently applied to
Sound insulation and noise reduction.
With reference to example, the practical solution of the present invention and effect are further described:
Embodiment 1
The present invention is applied to the sound insulation and noise reducing material of low-frequency noise, and its preparation method is as follows:
(1) retired high-tension insulator is clipped peel off after silicon rubber umbrella skirt, ultrasonic 15 minutes with clear water, wash away full skirt table
Enter pulverizer after drying clipped crusher in crushing under the conditions of 105 DEG C after the spot of face to pulverize 5 minutes, cross vibrosieve 10 minutes
After take 40 mesh sieves to take the lower silicon rubber powder of sieve.
(2) weigh the insulator silicon rubber powder 10g described in (1), add the sulphuric acid 8ml that mass concentration is 30%, 130
The pyrolysis product obtaining for 20 minutes, predominantly isobutylene Disilicoethane (ch is cleared up in micro-wave diminishing pot under the conditions of DEG C3)2sio]n
(n=4-20) mixture and cracked residue, standby；
(3) preparation of Merlon: take 2.0g polycarbonate to be heated to 130 DEG C of Merlon obtaining molten condition, standby
With；
(4) weigh aluminium oxide 1.5g, silicon oxide 1.3g even for powder body, particle diameter is 200-300 micron.
(5) prepare compound slurry: by above-mentioned weight than toward step 1) in gained Merlon in addition will be retired exhausted
Edge silicon rubber cracking product, silicon oxide and aluminium oxide, be incubated and stir under the conditions of temperature conditionss are 130 DEG C 5min,
Obtain compound slurry；
(6) prepare sound insulation and noise reducing material: by above-mentioned proportion, 3.0g dibenzoyl peroxide is added answering to above-mentioned preparation
Close in slurry, temperature conditionss be 130 DEG C, the foaming agent that is separately added into 0.8g after minute under 200 turns/min stirring condition even
Nitrogen diformamide, 0.3g blowing promotor carbamide are uniformly mixed, and the persistent period was at 1 minute about, then put it into length, width and height
It is in the mould of 6cm, furnace temperature is adjusted to 130 DEG C about foaming 20-25 minutes, is produced under -60 DEG C of cryogenic conditions
To cooling air-drying under naturalness after freezing 5 minutes, sound insulation and noise reducing composite after being removed from the molds, can be obtained.Then
Performance test is carried out to this sound insulation and noise reducing composite, material object is taken pictures and scanning electron microscope detection, its performance test results such as table 1 institute
Show, Fig. 1 is the pictorial diagram of this composite, Fig. 2 is the internal void figure of this sound-absorbing material.
Embodiment 2
(1) weigh the silicone rubber powder 200g in example 1, add the sulphuric acid 150ml that mass concentration is 30%, at 130 DEG C
Under the conditions of clear up the pyrolysis product obtaining for 20 minutes, predominantly isobutylene Disilicoethane (ch in micro-wave diminishing pot3)2sio]n(n
=4-20) mixture and cracked residue, standby；
(2) preparation of Merlon: take 40.0g polycarbonate to be heated to 180 DEG C of Merlon obtaining molten condition, standby
With；
(3) weigh aluminium oxide 15.0g, silicon oxide 13.0g even for powder body, particle diameter is 200-300 micron.
(4) prepare compound slurry: by above-mentioned weight than toward step 1) in gained Merlon in addition will be retired exhausted
Edge silicon rubber cracking product, silicon oxide and aluminium oxide, be incubated and stir under the conditions of temperature conditionss are 110 DEG C 5min,
Obtain compound slurry；
(5) sound insulation and noise reducing material is prepared in foaming: by above-mentioned proportion, 30g dibenzoyl peroxide is added answering to above-mentioned preparation
Close in slurry, in the foaming agent azo two that temperature conditionss are 80 DEG C, stirring is separately added into 8g after 5 minutes under the conditions of 150r/min
Methanamide, 3g blowing promotor carbamide are uniformly mixed, and the persistent period was at 2 minutes about, then put it into length, width and height and be respectively
In the mould of 500mm × 500mm × 10mm, furnace temperature is adjusted to 130 DEG C about foaming 20-25min, is produced to -60
Cooling air-drying under freezing 6min naturalness in DEG C freezing room, can obtain sound insulation and noise reducing and be combined after being removed from the molds
Material.Then performance test is carried out to this sound insulation and noise reducing composite, material object is taken pictures and scanning electron microscope detection, its performance test is tied
Fruit is as shown in table 1.
The performance test results of table 1 novel sound noise reduction
Claims (10)
1. a kind of sound insulation and noise reducing material, by weight percentage, comprises following components:
Merlon 12-14%；Vulcanizing agent 3-5%；Silicon oxide 4-6%；Aluminium oxide 5-7%；Foaming agent 5-7%；Blowing promotor
1-2%；Balance of silicon rubber cracking product.
2. sound insulation and noise reduction material according to claim 1 is it is characterised in that described vulcanizing agent includes: diphenyl peroxide first
Acyl；
Described foaming agent includes for azo: diformamide or n, n- dinitroso-five methine tetramine；
Described blowing promotor includes: carbamide.
3. the preparation method of sound insulation and noise reducing material as claimed in claim 1 or 2, comprising:
A) described Merlon is heated to molten condition, adds described aluminium oxide, silicon oxide and silicon rubber cracking product, stir
Mix, obtain compound slurry；
B) add described vulcanizing agent to be mixed toward in described compound slurry, add foaming agent and blowing promotor is mixed
Even, add in mould, foaming, cooling, the demoulding, obtain described novel sound noise reduction composite.
4. preparation method according to claim 3 is it is characterised in that the melt temperature of Merlon described in step a) is
100-230℃；
Described mixing carries out constant temperature stirring 5min under the conditions of 110-150 DEG C.
5. preparation method according to claim 3 it is characterised in that the described foaming of step b) temperature be 150-180 DEG C,
The time of described foaming is 10-15min；The temperature of described cooling is -60 DEG C to -80 DEG C, and the time of described cooling is 4-7min.
6. sound insulation and noise reducing material according to claim 1 it is characterised in that described silicon rubber cracking product be silicone rubber with
The product that sulfuric acid solution obtains after being cleared up.
7. sound insulation and noise reducing material according to claim 6 it is characterised in that the described temperature cleared up be 125-130 DEG C, institute
State the time cleared up for 18-20min.
8. sound insulation and noise reducing material according to claim 6 is it is characterised in that the mass percent concentration of described sulfuric acid solution
For 20-40%.
9. sound insulation and noise reducing material according to claim 6 is it is characterised in that described silicone rubber is the silicone rubber of 40-200 mesh
Powder；The ratio of described silicone rubber powder and described sulfuric acid solution is (15-16) g:(6-12) ml.
10. sound insulation and noise reducing material according to claim 9 is it is characterised in that described silicone rubber powder is waste silicone rubber
2-4h, the product obtaining after then being pulverized is dried at being placed in 100-105 DEG C after cleaned surface blot.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610990037.2A CN106366613A (en) | 2016-11-10 | 2016-11-10 | Material with effects of insulating sound and reducing noise and preparation method of material |
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| CN201610990037.2A CN106366613A (en) | 2016-11-10 | 2016-11-10 | Material with effects of insulating sound and reducing noise and preparation method of material |
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Cited By (4)
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| CN106832754A (en) * | 2017-03-22 | 2017-06-13 | 广东电网有限责任公司电力科学研究院 | A kind of phenol-formaldehyde resin modified material and its application |
| CN106827758A (en) * | 2017-02-17 | 2017-06-13 | 广东电网有限责任公司电力科学研究院 | A kind of complex sound insulation sound-absorbing material and preparation method thereof |
| CN108384250A (en) * | 2018-03-13 | 2018-08-10 | 广东电网有限责任公司电力科学研究院 | A kind of foamed material and preparation method thereof |
| CN110820166A (en) * | 2019-11-12 | 2020-02-21 | 广州中樱汽车零部件有限公司 | Environment-friendly recycled material low-VOC (volatile organic compound) constant-density cotton for automobiles and preparation method thereof |
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| CN104151832A (en) * | 2014-08-20 | 2014-11-19 | 南京信息工程大学 | Silicone rubber vibration damping composite material used for automobile and preparation method thereof |
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| CN103665871A (en) * | 2013-11-09 | 2014-03-26 | 国家电网公司 | Recovery and regeneration method of out-of-service composite insulator silicon rubber material |
| CN103923448A (en) * | 2014-04-02 | 2014-07-16 | 合肥杰事杰新材料股份有限公司 | Preparation method of micro-porous foamed polycarbonate material |
| CN104151832A (en) * | 2014-08-20 | 2014-11-19 | 南京信息工程大学 | Silicone rubber vibration damping composite material used for automobile and preparation method thereof |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106827758A (en) * | 2017-02-17 | 2017-06-13 | 广东电网有限责任公司电力科学研究院 | A kind of complex sound insulation sound-absorbing material and preparation method thereof |
| CN106827758B (en) * | 2017-02-17 | 2018-09-11 | 广东电网有限责任公司电力科学研究院 | A kind of complex sound insulation sound-absorbing material and preparation method thereof |
| CN106832754A (en) * | 2017-03-22 | 2017-06-13 | 广东电网有限责任公司电力科学研究院 | A kind of phenol-formaldehyde resin modified material and its application |
| CN106832754B (en) * | 2017-03-22 | 2019-07-05 | 广东电网有限责任公司电力科学研究院 | A kind of modified phenolic resin material and its application |
| CN108384250A (en) * | 2018-03-13 | 2018-08-10 | 广东电网有限责任公司电力科学研究院 | A kind of foamed material and preparation method thereof |
| CN110820166A (en) * | 2019-11-12 | 2020-02-21 | 广州中樱汽车零部件有限公司 | Environment-friendly recycled material low-VOC (volatile organic compound) constant-density cotton for automobiles and preparation method thereof |
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