CN106782476A - A kind of sound-absorbing material and preparation method thereof - Google Patents
A kind of sound-absorbing material and preparation method thereof Download PDFInfo
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- CN106782476A CN106782476A CN201611011398.4A CN201611011398A CN106782476A CN 106782476 A CN106782476 A CN 106782476A CN 201611011398 A CN201611011398 A CN 201611011398A CN 106782476 A CN106782476 A CN 106782476A
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- 239000011358 absorbing material Substances 0.000 title claims abstract description 58
- 238000002360 preparation method Methods 0.000 title claims abstract description 28
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims abstract description 53
- 239000002121 nanofiber Substances 0.000 claims abstract description 53
- 239000006260 foam Substances 0.000 claims abstract description 45
- 238000000034 method Methods 0.000 claims abstract description 41
- 229910002092 carbon dioxide Inorganic materials 0.000 claims abstract description 26
- 239000001569 carbon dioxide Substances 0.000 claims abstract description 26
- 238000004132 cross linking Methods 0.000 claims abstract description 24
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 22
- 239000002096 quantum dot Substances 0.000 claims abstract description 21
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 claims abstract description 20
- 239000000835 fiber Substances 0.000 claims abstract description 20
- 229910021389 graphene Inorganic materials 0.000 claims abstract description 20
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N phenol group Chemical group C1(=CC=CC=C1)O ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 claims abstract description 20
- 239000000853 adhesive Substances 0.000 claims abstract description 18
- 230000001070 adhesive effect Effects 0.000 claims abstract description 18
- 239000012530 fluid Substances 0.000 claims abstract description 18
- 239000011268 mixed slurry Substances 0.000 claims abstract description 13
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 11
- 238000001994 activation Methods 0.000 claims abstract description 9
- 238000002604 ultrasonography Methods 0.000 claims abstract description 8
- 239000000463 material Substances 0.000 claims description 32
- 230000008569 process Effects 0.000 claims description 7
- 239000003513 alkali Substances 0.000 claims description 3
- -1 graphite alkene Chemical class 0.000 claims description 3
- 230000009467 reduction Effects 0.000 claims description 3
- 238000000638 solvent extraction Methods 0.000 claims description 3
- 229910052799 carbon Inorganic materials 0.000 claims description 2
- 230000008859 change Effects 0.000 claims description 2
- 238000001338 self-assembly Methods 0.000 claims description 2
- 239000003292 glue Substances 0.000 claims 2
- 241000790917 Dioxys <bee> Species 0.000 claims 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims 1
- 239000013590 bulk material Substances 0.000 claims 1
- 229910002804 graphite Inorganic materials 0.000 claims 1
- 239000010439 graphite Substances 0.000 claims 1
- 239000001301 oxygen Substances 0.000 claims 1
- 229910052760 oxygen Inorganic materials 0.000 claims 1
- 238000010521 absorption reaction Methods 0.000 abstract description 25
- 239000007789 gas Substances 0.000 description 7
- 239000011148 porous material Substances 0.000 description 7
- 238000012360 testing method Methods 0.000 description 7
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 6
- 238000003556 assay Methods 0.000 description 5
- 238000005259 measurement Methods 0.000 description 5
- 238000012546 transfer Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 4
- 238000009413 insulation Methods 0.000 description 4
- 238000002156 mixing Methods 0.000 description 4
- 239000002245 particle Substances 0.000 description 4
- 230000003746 surface roughness Effects 0.000 description 4
- YMWUJEATGCHHMB-UHFFFAOYSA-N Dichloromethane Chemical compound ClCCl YMWUJEATGCHHMB-UHFFFAOYSA-N 0.000 description 3
- 239000000945 filler Substances 0.000 description 3
- 239000002070 nanowire Substances 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 229920000742 Cotton Polymers 0.000 description 2
- 239000004743 Polypropylene Substances 0.000 description 2
- 229920004933 Terylene® Polymers 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000000605 extraction Methods 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- 125000000524 functional group Chemical group 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000005020 polyethylene terephthalate Substances 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 1
- WQZGKKKJIJFFOK-GASJEMHNSA-N Glucose Natural products OC[C@H]1OC(O)[C@H](O)[C@@H](O)[C@@H]1O WQZGKKKJIJFFOK-GASJEMHNSA-N 0.000 description 1
- 239000006096 absorbing agent Substances 0.000 description 1
- 230000003213 activating effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910002090 carbon oxide Inorganic materials 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- NEHMKBQYUWJMIP-UHFFFAOYSA-N chloromethane Chemical class ClC NEHMKBQYUWJMIP-UHFFFAOYSA-N 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- KTWOOEGAPBSYNW-UHFFFAOYSA-N ferrocene Chemical compound [Fe+2].C=1C=C[CH-]C=1.C=1C=C[CH-]C=1 KTWOOEGAPBSYNW-UHFFFAOYSA-N 0.000 description 1
- 239000003063 flame retardant Substances 0.000 description 1
- 239000006261 foam material Substances 0.000 description 1
- 239000008103 glucose Substances 0.000 description 1
- 238000007731 hot pressing Methods 0.000 description 1
- 239000012943 hotmelt Substances 0.000 description 1
- 238000005470 impregnation Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000004630 mental health Effects 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 239000004745 nonwoven fabric Substances 0.000 description 1
- 230000035479 physiological effects, processes and functions Effects 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 230000000644 propagated effect Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
- G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
- G10K11/16—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
- G10K11/162—Selection of materials
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M10/00—Physical treatment of fibres, threads, yarns, fabrics, or fibrous goods made from such materials, e.g. ultrasonic, corona discharge, irradiation, electric currents, or magnetic fields; Physical treatment combined with treatment with chemical compounds or elements
- D06M10/02—Physical treatment of fibres, threads, yarns, fabrics, or fibrous goods made from such materials, e.g. ultrasonic, corona discharge, irradiation, electric currents, or magnetic fields; Physical treatment combined with treatment with chemical compounds or elements ultrasonic or sonic; Corona discharge
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M11/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising
- D06M11/32—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with oxygen, ozone, ozonides, oxides, hydroxides or percompounds; Salts derived from anions with an amphoteric element-oxygen bond
- D06M11/36—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with oxygen, ozone, ozonides, oxides, hydroxides or percompounds; Salts derived from anions with an amphoteric element-oxygen bond with oxides, hydroxides or mixed oxides; with salts derived from anions with an amphoteric element-oxygen bond
- D06M11/44—Oxides or hydroxides of elements of Groups 2 or 12 of the Periodic Table; Zincates; Cadmates
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M11/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising
- D06M11/73—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with carbon or compounds thereof
- D06M11/76—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with carbon or compounds thereof with carbon oxides or carbonates
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M15/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
- D06M15/19—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with synthetic macromolecular compounds
- D06M15/37—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- D06M15/39—Aldehyde resins; Ketone resins; Polyacetals
- D06M15/41—Phenol-aldehyde or phenol-ketone resins
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Multimedia (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Plasma & Fusion (AREA)
- Soundproofing, Sound Blocking, And Sound Damping (AREA)
- Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
Abstract
The invention provides a kind of preparation method of sound-absorbing material, it is characterised in that specific steps include：The first step：Activation process is carried out to nanofiber foam surface；Second step：Modified phenolic adhesive, graphene oxide and ZnO quantum dot are dissolved in acetone, 24~48h of ultrasound obtains mixed slurry；3rd step：The mixed slurry obtained using supercritical carbon dioxide fluid and second step is processed the nanofiber foam obtained by the first step, then pressure is reduced, nanofiber foam is desorbed supercritical carbon dioxide fluid, make modified phenolic adhesive graphene oxide and ZnO quantum dot dispersed to fiber surface；3rd step：Adhesion agent is solidified crosslinking using heat cross-linking method, obtain sound-absorbing material.The present invention has more excellent sound absorption qualities, is tested with the sound-absorbing material that the method for ISO10534 2 is 5mm to thickness, and more than 0.70, maximum sound-absorption coefficient is more than 0.99 to its low-frequency sound-absorbing coefficient.
Description
Technical field
The invention belongs to noise pollution Treatment process field, more particularly to a kind of sound-absorbing material and preparation method thereof.
Background technology
Noise pollution produces greatly harm to people's physiology, mental health, effectively prevents noise pollution, reduces noise
Harm be ensure people's normal work and life requisite measure.Sound-absorbing material can from noise produce source, be propagated through
Journey and the aspect of terminal victim protection three set about administering noise pollution, are using the hand maximally efficient to noise pollution
Section.Sound-absorbing material can be divided into porous sound absorbing material, resonance acoustical absorption material and special construction sound-absorbing material by its sound absorption characteristics, its
The characteristics of middle porous material sound-absorbing material has lightweight, sound-absorbing effect good, is one of current most widely used sound-absorbing material,
It is widely used in the vehicles, performs in a radio or TV programme the places such as hall, theater.With the fast development of sound-absorbing material industry, only possess good
Good sound-absorbing effect can not fully meet the demand of existing market, and people propose requirement higher to sound-absorbing material, material
Not only want sound absorption qualities good, and require lightweight.Therefore, Ultralight high-efficiency sound-absorbing material becomes global evolution in recent years
One of focus.
Current efficient and light weight sound-absorbing material is mainly traditional non-woven fabrics acoustical cotton, and scientific research personnel have also been made phase in this regard
The research work answered simultaneously develops a series of sound-absorbing material.Domestic patent CN101471070A discloses a kind of high-performance sound-absorbing
Material and preparation method thereof, the preparation method is first by the hot melt terylene short fiber of the terylene short fiber of 1D, 15D and 1.5D by certain
Ratio mixing is standby into the solid netted short fine layer of mixing through hot pressing, then uses 10g/cm2Polypropylene spunbond cloth clamping multilayer it is above-mentioned
The solid netted short fine layer of mixing prepares sound-absorbing material.The TAI-2047 series acoustical cotton products of 3M companies production are that the whole world has at present
Representational absorptive product, the product be by a diameter of 25 μm of polyster fibre and a diameter of 2 μm of polypropylene fiber it is compound and
Into nonwoven cloth material, bulk density is 20mg/cm3, thickness is 10mm.Domestic patent CN101903434A discloses one kind and subtracts
Shake sound-absorbing material and its manufacture method, sound-absorbing material described in the patent is obtained by the foamed treatment of polyurethane.Above-mentioned patent institute
The material of offer and interiors of products aperture are greatly and pore-size distribution is narrower, it is impossible to effectively realize the absorption to low frequency noise, Er Qiecai
The bulk density of material is generally bigger than normal.For big this problem of sound-absorbing material bulk density, domestic patent CN101807394Y is disclosed
A kind of compound layered sound-absorbing material of micro nanometer fiber, the invention be by one or more simultaneously containing 50~900nm and 2~
The sound absorbing layer of 800 μm of fiber composition is overlapped mutually combination, by adjust the micro nanometer fiber component of different layer materials, thickness,
Bulk density and feature filler adjust the sound-absorbing and the performance such as fire-retardant of integral material, although the patent introduces Nanowire
Tie up as the light components of material, but the bulk density of material is still larger, and internal filler only rises including powder split filler
To single filling-modified effect, can not tight bond to fiber surface to improve the pore structure of material, therefore material
Sound absorption qualities particularly low frequency sound absorption qualities are poor.In sum, there are sound absorption qualities and be particularly in above-mentioned patent and product
The deficiency that low-frequency range sound absorption qualities are poor and bulk density is excessive, seriously limits sound-absorbing material in Aero-Space, superior automobile
Deng the extensive application in field.
The A of CN 104464712 disclose a kind of preparation method of nanofiber foam-based sound-absorbing material, including following step
Suddenly：The first step：Activation process is carried out to nanofiber foam surface；Second step：Temperature be 32~35 DEG C, pressure be 7.39 ×
106~8 × 106Under conditions of Pa, using the mixing of supercritical carbon dioxide fluid and adhesion agent and surface roughness modified particles
Thing is processed the nanofiber foam obtained by previous step, then reduces pressure, nanofiber foam is desorbed overcritical two
Carbon oxide fluid, makes adhesion agent dispersed to fiber surface with surface roughness modified particles；3rd step：Using heat cross-linking method
Adhesion agent is solidified crosslinking, surface roughness modified particles is combined in fiber surface, obtain nanofiber foam-based sound absorber
Material.The method preparation process is simple, design on material structure is strong, and product sound absorption qualities are excellent, but, its sound-absorbing effect still needs
Further improve.
The content of the invention
The invention aims to solve the problems, such as that above-mentioned material proposes a kind of preparation method of sound-absorbing material, adopt
With the sound-absorbing material that thickness is 5mm as test specimen, described in ISO10534-2《Absorb sound system in acoustic impedance pipe
The measurement part 2 of number and acoustic impedance：Transfer function method》Assay method is tested, its low-frequency sound-absorbing coefficient more than 0.70,
Maximum sound-absorption coefficient is more than 0.99.
In order to achieve the above object, the invention provides a kind of sound-absorbing material and preparation method thereof.
In a first aspect, the present invention provides a kind of preparation method of sound-absorbing material, the specific steps of methods described include：
The first step：Activation process is carried out to nanofiber foam surface；
Second step：Modified phenolic adhesive, graphene oxide and ZnO quantum dot are dissolved in acetone, 24~48h of ultrasound is obtained
Mixed slurry；
3rd step：It it is 40 DEG C~45 DEG C in temperature, pressure is 2 × 107Pa~4 × 107Under conditions of Pa, using overcritical
The mixed slurry that CO 2 fluid is obtained with second step is processed the nanofiber foam obtained by previous step, is then reduced
Pressure, makes nanofiber foam be desorbed supercritical carbon dioxide fluid, makes modified phenolic adhesive graphene oxide and ZnO quantum dot equal
It is even to be scattered in fiber surface；
3rd step：Adhesion agent is solidified crosslinking using heat cross-linking method, obtain sound-absorbing material.
Preferably, described nanofiber foam is nanofiber mutually through the three-dimensional network shape frame body sectional material being staggered to form
Material.
Preferably, the bulk density of described nanofiber foam is 0.1~50mg/cm3, aperture is 0.01~10 μm,
Specific surface area is 10~2000m2/g。
Preferably, described nanofiber foam is the uniform nanofiber foamed material of global density, or density
The nanofiber foamed material of through-thickness even variation or the nanofiber bubble of density through-thickness graded
Foam material.
Preferably, described activating treatment method is：Alkali reduction method, solvent extraction, hydrothermal growth process, vapor growth method
With the combination of one or more in induced by magnetic field self-assembly method.
Preferably, the quality of the gross mass of modified phenolic adhesive, graphene oxide and ZnO quantum dot and acetone described in second step
Than being 1:(2~5), for example, can be 1:2、1:2.5、1:2.8、1:3、1:3.5、1:4、1:4.2、1:4.5 or 1:5 etc., preferably
1:3。
Preferably, the mass ratio of modified phenolic adhesive, graphene oxide and ZnO quantum dot described in second step is 2:(0.05~
0.5):(1~3), for example, can be 2:0.05:1、2:0.1:2、2:0.3:1.5、2:0.2:3、2:0.4:2.5、2:0.5:1 or 2:
0.5:2 etc., preferably 2:0.3:3.
Ultrasonic time in second step of the present invention is 24~48h, for example can for 24h, 28h, 30h, 32h, 36h, 38h,
40h, 43h, 46h or 48h etc..
Preferably, described heat cross-linking is the segmented heat cross-linking mode of temperature programming.
Second aspect, the present invention provides the sound-absorbing material that method is prepared as described in relation to the first aspect.
Compared with prior art, the beneficial effects of the invention are as follows：
(1) the nanofiber open celled foam that the present invention is used is different from conventional foam, and its frame structure is by nanometer
Fiber is constituted so that material has specific surface area higher, high porosity, pore communication high and excellent mechanical property.
By using the acetone soln of modified phenolic adhesive, graphene oxide and ZnO quantum dot, ultrasound is simultaneously modified to fiber surface,
Improve by the functional group on graphene oxide chemical binding between material, the addition of quantum dot optimizes the knot of material
Structure, is conducive to increasing the reflection-absorption area and the resonance decay to low frequency noise to sound wave, makes its sound absorption qualities excellent, uses
The method of ISO10534-2 to thickness for the sound-absorbing material of 5mm is tested, more than 0.70, inhale its low-frequency sound-absorbing coefficient by maximum
Phonetic system number is more than 0.99.
(2) the characteristics of present invention utilizes nano-fiber material category wide, has widened the raw material type of sound-absorbing material, and
And preparation technology can be regulated and controled in material preparation process, one-step shaping prepares the sound-absorbing material of density gradient structure, improves
The sound absorption qualities of material.
(3) preparation process is simple of the sound-absorbing material that the present invention is provided, design on material structure is strong, small product size density
Small, thickness is small, with low cost, and administer field and be particularly in noise pollution has greatly in the light material such as Aero-Space field
Application prospect and commercial value.
Specific embodiment
Technical scheme is further illustrated below by specific embodiment.
Nanofiber foam in following examples is nanofiber mutually through the three-dimensional network shape build being staggered to form
Material, can buy in Shanghai Dong Xiang nanosecond science and technology Co., Ltd, and high-purity carbon dioxide gas (purity is 99.99%) can be with
In Shanghai, Jia Ya Chemical Co., Ltd.s buy, and the air-cooled carbon-dioxide gas compressors of VW-6/2-6 can be in Anhui Ju Feng compressors
Manufacturing Co., Ltd buys.
Embodiment 1
A kind of preparation method of sound-absorbing material, concretely comprises the following steps：
The first step：Activation process is carried out to nanofiber foam surface using Alkali reduction method, wherein aqueous slkali is quality point
Number is 2% sodium hydroxide solution, is taken out by nanofiber foam impregnation in 2% sodium hydroxide solution, after 1 hour and is washed to
Neutrality, is then placed in being dried in convection oven；The nanofiber foam volume density is 0.1mg/cm3, average pore size be
0.01 μm, specific surface area be 10m2/g；The nanofiber foam is the uniform nanofiber foam of global density；
Second step：20g modified phenolic adhesives, 5g graphene oxides and 10gZnO quantum dots are dissolved in 70g acetone, ultrasound
48h, obtains mixed slurry；
3rd step：Temperature be 40 DEG C, pressure be 4 × 107Under conditions of Pa, using supercritical carbon dioxide fluid and
The mixed slurry that two steps are obtained is processed the nanofiber foam obtained by the first step, then reduce pressure be 1.01 ×
105Pa, makes nanofiber foam be desorbed supercritical carbon dioxide fluid, makes modified phenolic adhesive graphene oxide and ZnO quantum dot
It is dispersed to fiber surface；Described supercritical carbon dioxide fluid is will by the air-cooled carbon-dioxide gas compressors of VW-6/2-6
Ultrapure carbon dioxide is compressed to 7.39 × 106Pa, temperature are increased to 32 DEG C of gained；
3rd step：Adhesion agent is solidified crosslinking using heat cross-linking method, obtain the sound-absorbing material with excellent sound absorption qualities；Institute
The temperature programming segmented heat cross-linking mode stated be with the heating rate temperature programming of 5 DEG C/min, respectively 80 DEG C, 100 DEG C,
120 DEG C, 160 DEG C, 180 DEG C, 200 DEG C, 220 DEG C of insulation 10min.
It is the sound-absorbing material of 5mm as test specimen to use thickness, described in ISO10534-2《Acoustic impedance
The measurement part 2 of acoustic absorptivity and acoustic impedance in pipe：Transfer function method》Assay method, is given birth to Beijing popularity sound Co., Ltd
The SW260 type impedance tubes of product measure the low-frequency sound-absorbing coefficient of the sample more than 0.70, and maximum sound-absorption coefficient is more than 0.99.
Embodiment 2
A kind of preparation method of sound-absorbing material, concretely comprises the following steps：
The first step：Activation process is carried out to nanofiber foam surface using solvent extraction, wherein extractant is two
Chloromethanes, extraction time is 30min, and extraction times are 3 times, soluble surface functional group is removed by dichloromethane, are formed and lived
Property site；The nanofiber foam volume density is 50mg/cm3, average pore size be 10 μm, specific surface area be 2000m2/g；Institute
State the nanofiber foamed material that nanofiber foam uniformly changes for global density through-thickness；
Second step：40g modified phenolic adhesives, 1g graphene oxides and 30gZnO quantum dots are dissolved in 280g acetone, ultrasound
24h, obtains mixed slurry；
3rd step：Temperature be 45 DEG C, pressure be 2 × 107Under conditions of Pa, using supercritical carbon dioxide fluid and
The mixed slurry that two steps are obtained is processed the nanofiber foam obtained by the first step, then reduce pressure to 1.01 ×
105Pa, makes nanofiber foam be desorbed supercritical carbon dioxide fluid, makes modified phenolic adhesive graphene oxide and ZnO quantum dot
It is dispersed to fiber surface；Described supercritical carbon dioxide fluid is will by the air-cooled carbon-dioxide gas compressors of VW-6/2-6
Ultrapure carbon dioxide is compressed to 7.39 × 106Pa, temperature are increased to 32 DEG C of gained；
3rd step：Adhesion agent is solidified crosslinking using heat cross-linking method, obtain the sound-absorbing material with excellent sound absorption qualities；Institute
The temperature programming segmented heat cross-linking mode stated be with the heating rate temperature programming of 5 DEG C/min, respectively 80 DEG C, 100 DEG C,
120 DEG C, 160 DEG C, 180 DEG C, 200 DEG C, 220 DEG C of insulation 10min.It is the sound-absorbing material of 5mm as test specimen to use thickness,
Described in ISO10534-2《The measurement part 2 of acoustic absorptivity and acoustic impedance in acoustic impedance pipe：Transfer function method》
Assay method, the low-frequency sound-absorbing coefficient that the SW260 type impedance tubes produced with Beijing popularity sound Co., Ltd measure the sample exists
More than 0.70, maximum sound-absorption coefficient is more than 0.99.
Embodiment 3
A kind of preparation method of sound-absorbing material, concretely comprises the following steps：
The first step：Activation process, wherein hydrothermal growth process institute are carried out to nanofiber foam surface using hydrothermal growth process
It is that mass fraction is 5% glucose solution with solution, heating-up temperature is 200 DEG C, and pressure is 10MPa, and process time is 2 hours；
The nanofiber foam volume density is 5mg/cm3, average pore size be 1 μm, specific surface area be 1000m2/g；The Nanowire
Dimension foam is the nanofiber foamed material of global density through-thickness gradient change.
Second step：20g modified phenolic adhesives, 3g graphene oxides and 30gZnO quantum dots are dissolved in 159g acetone, ultrasound
36h, obtains mixed slurry；
3rd step：Temperature be 42 DEG C, pressure be 3 × 107Under conditions of Pa, using supercritical carbon dioxide fluid with it is viscous
Even the mixture of agent and surface roughness modified particles is processed the nanofiber foam obtained by the first step, then reduces pressure
Strong is 1.01 × 105Pa, makes modified phenolic adhesive graphene oxide and ZnO quantum dot dispersed to fiber surface；Described is super
Critical carbon dioxide fluid is that ultrapure carbon dioxide is compressed into 7.39 by the air-cooled carbon-dioxide gas compressors of VW-6/2-6
×106Pa, temperature are increased to 32 DEG C of gained；
3rd step：Adhesion agent is solidified crosslinking using heat cross-linking method, obtain the sound-absorbing material with excellent sound absorption qualities；Institute
The temperature programming segmented heat cross-linking mode stated be with the heating rate temperature programming of 5 DEG C/min, respectively 80 DEG C, 100 DEG C,
120 DEG C, 160 DEG C, 180 DEG C, 200 DEG C, 220 DEG C of insulation 10min.
It is the sound-absorbing material of 5mm as test specimen to use thickness, described in ISO10534-2《Acoustic impedance
The measurement part 2 of acoustic absorptivity and acoustic impedance in pipe：Transfer function method》Assay method, is given birth to Beijing popularity sound Co., Ltd
The SW260 type impedance tubes of product measure the low-frequency sound-absorbing coefficient of the sample more than 0.70, and maximum sound-absorption coefficient is more than 0.99.
Embodiment 4
A kind of preparation method of sound-absorbing material, concretely comprises the following steps：
The first step：Activation process is carried out to nanofiber foam surface using vapor growth method, wherein with ethene as carbon source,
Ferrocene is catalyst, and high pure nitrogen is protective gas, and treatment temperature is 250 DEG C, and process time is 1 hour；The Nanowire
Dimension foam volume density is 15mg/cm3, average pore size be 5 μm, specific surface area be 1500m2/g；The nanofiber foam is whole
The uniform nanofiber foam of volume density.
Second step：200g modified phenolic adhesives, 35g graphene oxides and 100gZnO quantum dots are dissolved in 70g acetone, are surpassed
Sound 30h, obtains mixed slurry；
Second step：Temperature be 43 DEG C, pressure be 2.5 × 107Under conditions of Pa using supercritical carbon dioxide fluid with
The mixed slurry that second step is obtained is processed the nanofiber foam obtained by the first step, then reduce pressure be 1.01 ×
105Pa, makes nanofiber foam be desorbed supercritical carbon dioxide fluid, makes modified phenolic adhesive graphene oxide and ZnO quantum dot
It is dispersed to fiber surface；Described supercritical carbon dioxide fluid is will by the air-cooled carbon-dioxide gas compressors of VW-6/2-6
Ultrapure carbon dioxide is compressed to 7.39 × 106Pa, temperature are increased to 32 DEG C of gained；
3rd step：Adhesion agent is solidified crosslinking using heat cross-linking method, obtain the sound-absorbing material with excellent sound absorption qualities；Institute
The temperature programming segmented heat cross-linking mode stated be with the heating rate temperature programming of 5 DEG C/min, respectively 80 DEG C, 100 DEG C,
120 DEG C, 160 DEG C, 180 DEG C, 200 DEG C, 220 DEG C of insulation 10min.
It is the sound-absorbing material of 5mm as test specimen to use thickness, described in ISO10534-2《Acoustic impedance
The measurement part 2 of acoustic absorptivity and acoustic impedance in pipe：Transfer function method》Assay method, is given birth to Beijing popularity sound Co., Ltd
The SW260 type impedance tubes of product measure the low-frequency sound-absorbing coefficient of the sample more than 0.70, and maximum sound-absorption coefficient is more than 0.99.
Comparative example 1
In addition to second step is not carried out, the method for other preparations and test, condition are same as Example 1.
Test result shows that the SW260 type impedance tubes produced with Beijing popularity sound Co., Ltd measure the low frequency of the sample
0.30, maximum sound-absorption coefficient is 0.90 to sound-absorption coefficient.
Applicant states that the present invention illustrates method detailed of the invention by above-described embodiment, but the present invention not office
It is limited to above-mentioned method detailed, that is, does not mean that the present invention has to rely on above-mentioned method detailed and could implement.Art
Technical staff it will be clearly understood that any improvement in the present invention, equivalence replacement and auxiliary element to each raw material of product of the present invention
Addition, selection of concrete mode etc., within the scope of all falling within protection scope of the present invention and disclosing.
Claims (10)
1. a kind of preparation method of sound-absorbing material, it is characterised in that specific steps include：
The first step：Activation process is carried out to nanofiber foam surface；
Second step：Modified phenolic adhesive, graphene oxide and ZnO quantum dot are dissolved in acetone, 24~48h of ultrasound is mixed
Slurry；
3rd step：It it is 40 DEG C~45 DEG C in temperature, pressure is 2 × 107Pa~4 × 107Under conditions of Pa, using overcritical dioxy
The mixed slurry that change carbon flow body is obtained with second step is processed the nanofiber foam obtained by the first step, then reduces pressure
By force, nanofiber foam is desorbed supercritical carbon dioxide fluid, make modified phenolic adhesive graphene oxide and ZnO quantum dot uniform
It is scattered in fiber surface；
3rd step：Adhesion agent is solidified crosslinking using heat cross-linking method, obtain sound-absorbing material.
2. the preparation method of sound-absorbing material as claimed in claim 1, it is characterised in that described nanofiber foam is nanometer
Fiber is mutually through the three-dimensional network shape bulk material being staggered to form.
Preferably, the bulk density of described nanofiber foam is 0.1~50mg/cm3, aperture is 0.01~10 μm, specific surface
Product is 10~2000m2/g。
3. the preparation method of sound-absorbing material as claimed in claim 1 or 2, it is characterised in that described nanofiber foam is
The uniform nanofiber foamed material of global density, or density through-thickness even variation nanofiber foamed material
Or the nanofiber foamed material of density through-thickness graded.
4. the preparation method of the sound-absorbing material as described in claim any one of 1-3, it is characterised in that described activation process side
Method is：One kind or many in Alkali reduction method, solvent extraction, hydrothermal growth process, vapor growth method and induced by magnetic field self-assembly method
The combination planted.
5. the preparation method of the sound-absorbing material as described in claim any one of 1-4, it is characterised in that phenol glue described in second step
The gross mass of stick, graphene oxide and ZnO quantum dot and the mass ratio of acetone are 1:(2~5), preferably 1:3.
6. the preparation method of the sound-absorbing material as described in claim any one of 1-5, it is characterised in that phenol glue described in second step
The mass ratio of stick, graphene oxide and ZnO quantum dot is 2:(0.05~0.5):(1~3).
7. the preparation method of sound-absorbing material as claimed in claim 6, it is characterised in that modified phenolic adhesive, oxygen described in second step
The mass ratio of graphite alkene and ZnO quantum dot is 2:0.3:3.
8. the preparation method of the sound-absorbing material as described in claim any one of 1-7, it is characterised in that ultrasound described in second step
Time is 36h.
9. the preparation method of the sound-absorbing material as described in claim any one of 1-8, it is characterised in that described heat cross-linking is journey
The segmented heat cross-linking mode that sequence heats up.
10. the sound-absorbing material that such as claim 1-9 any one methods describeds are prepared.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107326659A (en) * | 2017-07-10 | 2017-11-07 | 南通纺织丝绸产业技术研究院 | Non-woven sound-absorbing material and preparation method based on polyvinyl alcohol nano |
| CN109769182A (en) * | 2019-01-31 | 2019-05-17 | 歌尔股份有限公司 | A kind of preparation method of sound-absorbing material, sound-absorbing material and loudspeaker mould group |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104464712A (en) * | 2014-12-10 | 2015-03-25 | 东华大学 | Preparation method of nano-fiber-foam-based acoustic material |
-
2016
- 2016-11-17 CN CN201611011398.4A patent/CN106782476A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104464712A (en) * | 2014-12-10 | 2015-03-25 | 东华大学 | Preparation method of nano-fiber-foam-based acoustic material |
Non-Patent Citations (1)
| Title |
|---|
| 高志贤等主编: "《纳米生物医药》", 30 April 2007, 化学工业出版社 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107326659A (en) * | 2017-07-10 | 2017-11-07 | 南通纺织丝绸产业技术研究院 | Non-woven sound-absorbing material and preparation method based on polyvinyl alcohol nano |
| CN107326659B (en) * | 2017-07-10 | 2019-07-05 | 南通纺织丝绸产业技术研究院 | Non-woven sound-absorbing material and preparation method based on polyvinyl alcohol nano |
| CN109769182A (en) * | 2019-01-31 | 2019-05-17 | 歌尔股份有限公司 | A kind of preparation method of sound-absorbing material, sound-absorbing material and loudspeaker mould group |
| CN109769182B (en) * | 2019-01-31 | 2021-03-30 | 歌尔股份有限公司 | Preparation method of sound-absorbing material, sound-absorbing material and loudspeaker module |
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