CN115716360B - High sound insulation polymer composite material and preparation method thereof - Google Patents
High sound insulation polymer composite material and preparation method thereof Download PDFInfo
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- CN115716360B CN115716360B CN202210325834.4A CN202210325834A CN115716360B CN 115716360 B CN115716360 B CN 115716360B CN 202210325834 A CN202210325834 A CN 202210325834A CN 115716360 B CN115716360 B CN 115716360B
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- 229920000642 polymer Polymers 0.000 title claims abstract description 23
- 239000002131 composite material Substances 0.000 title claims abstract description 20
- 238000009413 insulation Methods 0.000 title claims description 20
- 238000002360 preparation method Methods 0.000 title abstract description 9
- 239000000835 fiber Substances 0.000 claims abstract description 27
- 239000011258 core-shell material Substances 0.000 claims abstract description 24
- 239000005340 laminated glass Substances 0.000 claims abstract description 16
- 238000002156 mixing Methods 0.000 claims abstract description 4
- 238000009987 spinning Methods 0.000 claims description 27
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 claims description 14
- 239000011229 interlayer Substances 0.000 claims description 10
- 229920002037 poly(vinyl butyral) polymer Polymers 0.000 claims description 10
- 238000000034 method Methods 0.000 claims description 9
- IAZDPXIOMUYVGZ-UHFFFAOYSA-N Dimethylsulphoxide Chemical compound CS(C)=O IAZDPXIOMUYVGZ-UHFFFAOYSA-N 0.000 claims description 8
- 238000001523 electrospinning Methods 0.000 claims description 7
- 239000010410 layer Substances 0.000 claims description 7
- 239000004814 polyurethane Substances 0.000 claims description 7
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 claims description 6
- WEVYAHXRMPXWCK-UHFFFAOYSA-N Acetonitrile Chemical compound CC#N WEVYAHXRMPXWCK-UHFFFAOYSA-N 0.000 claims description 6
- YMWUJEATGCHHMB-UHFFFAOYSA-N Dichloromethane Chemical compound ClCCl YMWUJEATGCHHMB-UHFFFAOYSA-N 0.000 claims description 6
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 6
- 239000005038 ethylene vinyl acetate Substances 0.000 claims description 6
- 238000004519 manufacturing process Methods 0.000 claims description 6
- BDAGIHXWWSANSR-UHFFFAOYSA-N methanoic acid Natural products OC=O BDAGIHXWWSANSR-UHFFFAOYSA-N 0.000 claims description 6
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 claims description 6
- 229920002239 polyacrylonitrile Polymers 0.000 claims description 6
- 229920003229 poly(methyl methacrylate) Polymers 0.000 claims description 5
- HEDRZPFGACZZDS-UHFFFAOYSA-N Chloroform Chemical compound ClC(Cl)Cl HEDRZPFGACZZDS-UHFFFAOYSA-N 0.000 claims description 4
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 claims description 4
- FXHOOIRPVKKKFG-UHFFFAOYSA-N N,N-Dimethylacetamide Chemical compound CN(C)C(C)=O FXHOOIRPVKKKFG-UHFFFAOYSA-N 0.000 claims description 4
- 239000002033 PVDF binder Substances 0.000 claims description 4
- 239000004793 Polystyrene Substances 0.000 claims description 4
- 239000003960 organic solvent Substances 0.000 claims description 4
- 229920006254 polymer film Polymers 0.000 claims description 4
- 229920002635 polyurethane Polymers 0.000 claims description 4
- 229920002981 polyvinylidene fluoride Polymers 0.000 claims description 4
- OSWFIVFLDKOXQC-UHFFFAOYSA-N 4-(3-methoxyphenyl)aniline Chemical compound COC1=CC=CC(C=2C=CC(N)=CC=2)=C1 OSWFIVFLDKOXQC-UHFFFAOYSA-N 0.000 claims description 3
- 239000004952 Polyamide Substances 0.000 claims description 3
- 238000013329 compounding Methods 0.000 claims description 3
- 235000019253 formic acid Nutrition 0.000 claims description 3
- 229920002647 polyamide Polymers 0.000 claims description 3
- 229920002223 polystyrene Polymers 0.000 claims description 3
- SECXISVLQFMRJM-UHFFFAOYSA-N N-Methylpyrrolidone Chemical compound CN1CCCC1=O SECXISVLQFMRJM-UHFFFAOYSA-N 0.000 claims description 2
- 239000004642 Polyimide Substances 0.000 claims description 2
- 239000012792 core layer Substances 0.000 claims description 2
- 229920001721 polyimide Polymers 0.000 claims description 2
- 238000003756 stirring Methods 0.000 claims description 2
- 238000007731 hot pressing Methods 0.000 abstract description 11
- 238000010041 electrostatic spinning Methods 0.000 abstract description 7
- 239000000463 material Substances 0.000 abstract description 4
- 239000000243 solution Substances 0.000 description 24
- 239000002313 adhesive film Substances 0.000 description 11
- 238000001035 drying Methods 0.000 description 10
- 238000002347 injection Methods 0.000 description 10
- 239000007924 injection Substances 0.000 description 10
- 239000012528 membrane Substances 0.000 description 7
- 239000012510 hollow fiber Substances 0.000 description 5
- 239000005341 toughened glass Substances 0.000 description 5
- 230000014509 gene expression Effects 0.000 description 4
- 239000004926 polymethyl methacrylate Substances 0.000 description 4
- 230000000052 comparative effect Effects 0.000 description 3
- 239000011521 glass Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000002121 nanofiber Substances 0.000 description 2
- 239000002861 polymer material Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 238000007792 addition Methods 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000012774 insulation material Substances 0.000 description 1
- 238000003760 magnetic stirring Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Abstract
The invention provides a sound-insulating laminated glass intermediate film material and a preparation method thereof, wherein fibers with a core-shell structure are prepared through an electrostatic spinning technology, and a fiber/polymer composite material intermediate film is prepared through a hot pressing or blending technology.
Description
Technical Field
The invention relates to a high sound insulation polymer composite material and a preparation method thereof, belonging to the technical field of high polymer composite materials.
Technical Field
Along with the development of society, the urban process is accelerated, noise pollution becomes an important factor affecting the life quality of people, the requirements of people on sound comfort are also higher and higher, and the market demands of high sound insulation materials are also more and more. For example, in automobiles, the sound-insulating scheme by increasing the thickness of the glass is obviously not feasible, and the market for high sound-insulating laminated glass interlayer films is very large. The existing materials have limited sound insulation performance or single frequency sound insulation, and it is difficult to ensure sound insulation at low frequency, medium frequency and high frequency bands. Along with the acceleration of vehicles and the requirements of special working conditions, the high-sound-insulation intermediate film material suitable for the glass interlayer is developed, so that the noise reduction effect can be improved, and the safety can be improved.
Disclosure of Invention
Based on the above, the invention provides a high sound insulation composite material and a preparation method thereof, and the comprehensive characteristics of full-band sound insulation safety are realized by compounding core-shell fibers with specific polymer materials.
The invention provides a sound-insulating laminated glass intermediate film and a preparation method thereof, comprising the following steps:
(1) Dissolving a certain amount of polymer in an organic solvent, and stirring and dissolving to obtain polymer spinning solution;
(2) Preparing core-shell fibers by using the spinning solution and adopting a coaxial electrospinning method;
(3) And compounding the polymer film with the core-shell fiber prepared in the previous step to obtain the polymer/core-shell fiber composite film.
Preferably, the polymer of step (1) comprises: one or more polymers selected from polyamide, polyimide, polyurethane, polyacrylonitrile, polymethyl methacrylate, polystyrene, polyvinylidene fluoride, and the like.
Preferably, the organic solvent in step (1) comprises: one or more of N, N-dimethylformamide, N-dimethylacetamide, dimethyl sulfoxide, formic acid, methylene chloride, chloroform, N-methylpyrrolidone, ethanol, acetone, acetonitrile and isopropanol are mixed.
Preferably, the concentration of the spinning solution in the step (1) is 0.5wt% to 50wt%.
Preferably, the electrospinning voltage in the step (2) is 3-50kV; the advancing speed of the shell layer is 0.01-55mL/h, and the advancing speed of the core layer is 0.01-35mL/h.
Preferably, the preparation method of the polymer/core-shell fiber composite membrane in the step (3) can be a multi-layer hot pressing process or polymer blending.
Preferably, the core-shell fibers described in step (2) have a diameter of 0.005-50 microns; the core (core) has a diameter of 0.001-30 microns.
Preferably, the polymer film in the step (3) may be one or two of polyvinyl butyral (PVB), polyurethane (TPU), ethylene-vinyl acetate copolymer (EVA), and ionic intermediate film (SGP).
The innovation point of the invention is that: the hollow polymer nanofiber membrane is prepared by utilizing the coaxial electrostatic spinning technology for the first time, the prepared hollow polymer nanofiber membrane is compounded with a polymer material, and the core-shell structure of the hollow fiber is utilized to achieve the effect of high sound insulation. Because the diameter of the fiber prepared by electrospinning can reach the nanometer level and the diameter is controllable, the composite material maintains the bonding property of the original polymer, has high transparency and sound insulation, and can be directly applied to the production and manufacture of laminated sound insulation glass.
Description of the drawings:
FIG. 1 is a schematic view of a coaxial electrospinning apparatus used in inventive example 1.
FIG. 2 is a schematic structural view of a polymer/fiber composite film according to example 1 of the present invention.
FIG. 3 is a schematic view of the laminated glass according to example 1 of the present invention.
FIG. 4 is a schematic view showing the sound-insulating mechanism of a polymer/fiber composite laminated glass produced in example 1 of the present invention.
FIG. 5 is a schematic diagram of an impedance tube apparatus used in the sound insulation performance test of the material according to the present invention.
The specific implementation method comprises the following steps:
for a further understanding of the present invention, preferred embodiments of the invention are described below in conjunction with the examples, but it should be understood that these descriptions are merely intended to illustrate further features and advantages of the invention, and are not limiting of the claims of the invention.
All the raw materials of the present invention are not particularly limited in their sources, and may be purchased on the market or prepared according to conventional methods well known to those skilled in the art.
All the raw materials of the present invention are not particularly limited in purity, and the present invention preferably adopts conventional purity used in the field of industrial purity or electrospinning preparation.
All noun expressions, abbreviations and brands of the invention belong to the noun expressions, abbreviations and brands which are conventional in the art, each noun expression, abbreviation and brand is clear and definite in the relevant application field, and the person skilled in the art can understand clearly, accurately and uniquely according to the noun expressions, abbreviations and brands.
For the sake of clarity of the description of the invention, the following are specific examples of the invention, which do not limit the scope of the invention in any way.
Example 1:
15g of polymethyl methacrylate (PMMA) was weighed, added to 90ml of dimethyl sulfoxide (DMSO), and magnetically heated and stirred at 50℃for approximately 6 hours to obtain a spinning solution. Injecting the spinning solution into a 5mL injector, then placing the injector into a coaxial electrostatic spinning device, setting the spinning voltage to be 18kV, the spinning distance to be 18cm, the injection speed of the shell solution to be 0.2mL/h and the injection speed of the core solution to be 0.02mL/h, collecting the core-shell fiber film on a receiver, placing the core-shell fiber film into a constant-temperature drying oven at 50 ℃, and drying for 12h.
And placing the spinning core-shell fiber membrane between two layers of EVA films, and preparing the EVA/PMMA core-shell fiber composite adhesive film through hot pressing. And (3) placing the adhesive film between two pieces of toughened glass, and hot-pressing to obtain the high-sound-insulation laminated glass.
Example 2:
12g of Polyacrylonitrile (PAN) was weighed and added to 70g of N, N-Dimethylformamide (DMF), and the mixture was magnetically stirred at 55℃for 5 hours to obtain a spinning solution. Injecting the spinning solution into a 5mL injector, then placing the injector into a coaxial electrostatic spinning device, setting the voltage to be 15kV, the spinning distance to be 16cm, the injection speed of the shell solution to be 0.14mL/h and the injection speed of the core solution to be 0.014mL/h, placing the hollow fiber film collected on a receiver into a constant-temperature drying oven at 60 ℃, and drying for 12h.
And placing the spinning core-shell fiber membrane between two layers of PVB films, and preparing the PVB/PAN core-shell fiber composite adhesive film by hot pressing. And (3) placing the adhesive film between two pieces of toughened glass, and hot-pressing to obtain the high-sound-insulation laminated glass.
Example 3:
10g of polyamide (PA 6) was weighed and added to 60g of formic acid solution, and magnetically stirred overnight at 60℃to obtain a spinning solution. Injecting the spinning solution into a 5mL injector, then placing the injector into a coaxial electrostatic spinning device, setting the voltage to be 20kV, the spinning distance to be 20cm, the injection speed of the shell solution to be 0.2mL/h and the injection speed of the core solution to be 0.02mL/h, placing the hollow fiber film collected on a receiver into a constant temperature drying oven at 50 ℃, and drying for 12h.
And (3) putting the spinning core-shell fiber and PVB film into an extruder for blending, and casting the extruded film to obtain the PVB/PAN core-shell fiber composite adhesive film. And (3) placing the adhesive film between two pieces of toughened glass, and hot-pressing to obtain the high-sound-insulation laminated glass.
Example 4:
5g of Polystyrene (PS) was weighed, added to 60g of N, N-dimethylacetamide (DMAc), and heated at 60℃with magnetic stirring for 8 hours to obtain a spinning solution. Injecting the spinning solution into a 5mL injector, then placing the injector into a coaxial electrostatic spinning device, setting the voltage to be 20kV, the spinning distance to be 18cm, the injection speed of the shell solution to be 1.5mL/h and the injection speed of the core solution to be 0.15mL/h, placing the hollow fiber film collected on a receiver into a constant temperature drying oven at 60 ℃, and drying for 12h.
And placing the spinning core-shell fiber membrane between two layers of PU films, and preparing the PU/PS core-shell fiber composite adhesive film by hot pressing. And (3) placing the adhesive film between two pieces of toughened glass, and hot-pressing to obtain the high-sound-insulation laminated glass.
Example 5:
10g of polyvinylidene fluoride (PVDF) was weighed, added to 100g of N, N-Dimethylformamide (DMF), and magnetically stirred at 70℃for 4 hours to obtain a spinning solution. Injecting the spinning solution into a 5mL injector, then placing the injector into a coaxial electrostatic spinning device, setting the voltage to be 16kV, the spinning distance to be 19cm, the injection speed of the shell solution to be 2.0mL/h and the injection speed of the core solution to be 0.2mL/h, placing the hollow fiber film collected on a receiver into a constant temperature drying oven at 50 ℃, and drying for 12h.
And placing the spinning core-shell fiber membrane between two layers of PVB films, and preparing the PU/PVB core-shell fiber composite adhesive film through hot pressing. And (3) placing the adhesive film between two pieces of toughened glass, and hot-pressing to obtain the high-sound-insulation laminated glass.
Comparative example:
the commercially available interlayer films PVB and EVA film (0.76 mm) were used as comparative samples, and the thickness of the samples was the same as that of the composite material prepared in the examples.
The sound insulation test was carried out on the film sample of comparative example 1 of the composite adhesive film sample obtained by the preparation method provided in examples 1 to 5 according to the GB/Z27764-2011 test method, and the results are shown in the following table:
in summary, the present invention provides a method for preparing a composite material of a laminated glass interlayer, and any laminated glass interlayer prepared by using the method is protected by the present patent.
The collective embodiments described herein are merely illustrative of the spirit of the invention. Various modifications or additions to the described embodiments may be made by those skilled in the art to which the invention pertains or may be substituted in a similar manner without departing from the spirit of the invention or beyond the scope of the appended claims.
While the invention has been described in detail and with reference to specific embodiments thereof, it will be apparent to one skilled in the art that various changes and modifications can be made therein without departing from the spirit and scope thereof.
Claims (4)
1. An interlayer film for sound-insulating laminated glass and a method for producing the same, characterized in that the method comprises the steps of:
(1) Dissolving a certain amount of polymer in an organic solvent, and stirring and dissolving to obtain polymer spinning solution, wherein the concentration of the spinning solution is 0.5-50 wt%;
(2) Preparing core-shell fibers by using the spinning solution and adopting a coaxial electrospinning method, wherein the electrospinning voltage is 3-50kV; the shell layer advancing speed is 0.01-55mL/h, and the core layer advancing speed is 0.01-35mL/h; the diameter of the core-shell fiber is 0.005-50 microns; the diameter of the core is 0.001-30 microns;
(3) And compounding the polymer film with the core-shell fiber prepared in the previous step by adopting a polymer blending method to obtain the polymer/core-shell fiber composite film.
2. A sound-insulating laminated glass interlayer film and a method for producing the same according to claim 1, wherein the polymer in step (1) comprises: one or more of polyamides, polyimides, polyurethanes, polyacrylonitriles, polymethyl methacrylates, polystyrenes, polyvinylidene fluoride polymers.
3. The sound-insulating laminated glass interlayer film and the production method thereof according to claim 1, wherein: the organic solvent in the step (1) comprises: one or more of N, N-dimethylformamide, N-dimethylacetamide, dimethyl sulfoxide, formic acid, methylene chloride, chloroform, N-methylpyrrolidone, ethanol, acetone, acetonitrile and isopropanol.
4. The laminated glass interlayer film for sound insulation and the method for producing the same according to claim 1, wherein the polymer film in the step (3) is one or two of polyvinyl butyral, polyurethane, ethylene-vinyl acetate copolymer, and ionic interlayer film.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210325834.4A CN115716360B (en) | 2022-03-30 | 2022-03-30 | High sound insulation polymer composite material and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210325834.4A CN115716360B (en) | 2022-03-30 | 2022-03-30 | High sound insulation polymer composite material and preparation method thereof |
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| Publication Number | Publication Date |
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| CN115716360A CN115716360A (en) | 2023-02-28 |
| CN115716360B true CN115716360B (en) | 2023-10-27 |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE870167A (en) * | 1977-09-06 | 1979-01-02 | Teijin Ltd | PROCESS FOR THE PREPARATION OF SHEET MATERIALS PRESENTING THE APPEARANCE OF LEATHER |
| JP2002266167A (en) * | 2001-03-13 | 2002-09-18 | Teijin Ltd | Splittable hollow polyester fiber |
| CN108085872A (en) * | 2016-11-22 | 2018-05-29 | 航天特种材料及工艺技术研究所 | A kind of high-temperature resistant sound absorption tunica fibrosa and preparation method |
| EP3659676A1 (en) * | 2018-11-27 | 2020-06-03 | SABIC Global Technologies B.V. | Rail interior compliant thermoplastic composite |
| CN212097836U (en) * | 2019-12-20 | 2020-12-08 | 江苏晟泰高新材料有限公司 | Low-radiation sound-insulation laminated glass |
-
2022
- 2022-03-30 CN CN202210325834.4A patent/CN115716360B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE870167A (en) * | 1977-09-06 | 1979-01-02 | Teijin Ltd | PROCESS FOR THE PREPARATION OF SHEET MATERIALS PRESENTING THE APPEARANCE OF LEATHER |
| JP2002266167A (en) * | 2001-03-13 | 2002-09-18 | Teijin Ltd | Splittable hollow polyester fiber |
| CN108085872A (en) * | 2016-11-22 | 2018-05-29 | 航天特种材料及工艺技术研究所 | A kind of high-temperature resistant sound absorption tunica fibrosa and preparation method |
| EP3659676A1 (en) * | 2018-11-27 | 2020-06-03 | SABIC Global Technologies B.V. | Rail interior compliant thermoplastic composite |
| CN212097836U (en) * | 2019-12-20 | 2020-12-08 | 江苏晟泰高新材料有限公司 | Low-radiation sound-insulation laminated glass |
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| CN115716360A (en) | 2023-02-28 |
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