CN115652469A - Electromagnetic shielding functionalized regenerated polyester fiber and preparation method thereof - Google Patents
Electromagnetic shielding functionalized regenerated polyester fiber and preparation method thereof Download PDFInfo
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- CN115652469A CN115652469A CN202211355621.2A CN202211355621A CN115652469A CN 115652469 A CN115652469 A CN 115652469A CN 202211355621 A CN202211355621 A CN 202211355621A CN 115652469 A CN115652469 A CN 115652469A
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- 229920000728 polyester Polymers 0.000 title claims abstract description 41
- 239000000835 fiber Substances 0.000 title claims abstract description 32
- 238000002360 preparation method Methods 0.000 title claims abstract description 10
- SZVJSHCCFOBDDC-UHFFFAOYSA-N ferrosoferric oxide Chemical class O=[Fe]O[Fe]O[Fe]=O SZVJSHCCFOBDDC-UHFFFAOYSA-N 0.000 claims abstract description 63
- 229920000128 polypyrrole Polymers 0.000 claims abstract description 40
- 239000002699 waste material Substances 0.000 claims abstract description 9
- 238000003756 stirring Methods 0.000 claims description 31
- 238000001035 drying Methods 0.000 claims description 28
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 claims description 24
- 239000002904 solvent Substances 0.000 claims description 22
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 claims description 21
- 238000001914 filtration Methods 0.000 claims description 21
- 238000005406 washing Methods 0.000 claims description 21
- -1 bromobutylamide modified ferroferric oxide Chemical class 0.000 claims description 16
- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 claims description 16
- ZMANZCXQSJIPKH-UHFFFAOYSA-N Triethylamine Chemical compound CCN(CC)CC ZMANZCXQSJIPKH-UHFFFAOYSA-N 0.000 claims description 15
- 238000006243 chemical reaction Methods 0.000 claims description 14
- 238000009987 spinning Methods 0.000 claims description 14
- YMWUJEATGCHHMB-UHFFFAOYSA-N Dichloromethane Chemical compound ClCCl YMWUJEATGCHHMB-UHFFFAOYSA-N 0.000 claims description 12
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 claims description 9
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 claims description 9
- 239000003054 catalyst Substances 0.000 claims description 9
- WYTZZXDRDKSJID-UHFFFAOYSA-N (3-aminopropyl)triethoxysilane Chemical compound CCO[Si](OCC)(OCC)CCCN WYTZZXDRDKSJID-UHFFFAOYSA-N 0.000 claims description 8
- LRTRXDSAJLSRTG-UHFFFAOYSA-N 4-bromobutanoyl chloride Chemical compound ClC(=O)CCCBr LRTRXDSAJLSRTG-UHFFFAOYSA-N 0.000 claims description 8
- JGFZNNIVVJXRND-UHFFFAOYSA-N N,N-Diisopropylethylamine (DIPEA) Chemical compound CCN(C(C)C)C(C)C JGFZNNIVVJXRND-UHFFFAOYSA-N 0.000 claims description 8
- 239000007810 chemical reaction solvent Substances 0.000 claims description 8
- 238000002425 crystallisation Methods 0.000 claims description 7
- 230000008025 crystallization Effects 0.000 claims description 7
- IDGUHHHQCWSQLU-UHFFFAOYSA-N ethanol;hydrate Chemical compound O.CCO IDGUHHHQCWSQLU-UHFFFAOYSA-N 0.000 claims description 7
- 238000009998 heat setting Methods 0.000 claims description 7
- 238000000034 method Methods 0.000 claims description 7
- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 claims description 6
- HEDRZPFGACZZDS-UHFFFAOYSA-N Chloroform Chemical compound ClC(Cl)Cl HEDRZPFGACZZDS-UHFFFAOYSA-N 0.000 claims description 3
- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 claims description 3
- UCNNJGDEJXIUCC-UHFFFAOYSA-L hydroxy(oxo)iron;iron Polymers [Fe].O[Fe]=O.O[Fe]=O UCNNJGDEJXIUCC-UHFFFAOYSA-L 0.000 claims description 2
- 238000002156 mixing Methods 0.000 claims description 2
- 229960001701 chloroform Drugs 0.000 claims 1
- 239000000463 material Substances 0.000 abstract description 4
- 230000010287 polarization Effects 0.000 abstract description 4
- 238000010521 absorption reaction Methods 0.000 abstract description 3
- 239000006096 absorbing agent Substances 0.000 abstract description 2
- 230000002776 aggregation Effects 0.000 abstract description 2
- 238000004220 aggregation Methods 0.000 abstract 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 12
- 239000012153 distilled water Substances 0.000 description 6
- 239000004744 fabric Substances 0.000 description 3
- 239000002105 nanoparticle Substances 0.000 description 3
- KAESVJOAVNADME-UHFFFAOYSA-N Pyrrole Chemical compound C=1C=CNC=1 KAESVJOAVNADME-UHFFFAOYSA-N 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 238000005054 agglomeration Methods 0.000 description 1
- 238000007112 amidation reaction Methods 0.000 description 1
- 229920005557 bromobutyl Polymers 0.000 description 1
- 238000006555 catalytic reaction Methods 0.000 description 1
- 229920001940 conductive polymer Polymers 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010292 electrical insulation Methods 0.000 description 1
- 125000001841 imino group Chemical group [H]N=* 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000004753 textile Substances 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/62—Plastics recycling; Rubber recycling
Landscapes
- Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
Abstract
The invention relates to the technical field of electromagnetic shielding, and discloses an electromagnetic shielding functionalized regenerated polyester fiber and a preparation method thereof, wherein PET polyester waste is recovered and is spun with polypyrrole modified ferroferric oxide to obtain the electromagnetic shielding functionalized regenerated polyester fiber, and after the nanometer ferroferric oxide is grafted on the surface of the polypyrrole, the nanometer ferroferric oxide has good compatibility and dispersibility in the polyester fiber, the aggregation of the nanometer ferroferric oxide is reduced, and the improvement of the interface polarization loss is facilitated; polypyrrole modified ferroferric oxide is used as an electromagnetic shielding and wave absorbing agent, polyester fiber is used as a carrier, and electromagnetic waves are absorbed and lost through dielectric loss and interface polarization loss to form the electromagnetic shielding material with low density, light weight, wide absorption frequency band and high shielding efficiency.
Description
Technical Field
The invention relates to the technical field of electromagnetic shielding, in particular to an electromagnetic shielding functionalized regenerated polyester fiber and a preparation method thereof.
Background
The electromagnetic shielding technology has important application in the aspects of electromagnetic pollution treatment, stealth technology, military field and the like, and requires that an electromagnetic shielding material has the properties of low density, strong quality, excellent electromagnetic shielding performance and the like, and PET polyester fiber has good mechanical property, excellent electrical insulation performance and good chemical resistance, and has wide application prospect in the field of electromagnetic shielding.
Polypyrrole is used as a conductive polymer and is widely used in electromagnetic shielding materials, and in Chinese patent document 202210042280.7, namely ferroferric oxide/polypyrrole-based electromagnetic shielding fabric, a production method and application, ferroferric oxide nanoparticles and pyrrole are combined to form ferroferric oxide/polypyrrole composite nanoparticles, and then the ferroferric oxide/polypyrrole composite nanoparticles are coated on the surface of textile base fabric to form the ferroferric oxide/polypyrrole magnetic shielding fabric.
Disclosure of Invention
Technical problem to be solved
The invention provides a regenerated polyester fiber and a preparation method thereof, which solve the problem of poor electromagnetic shielding function of the polyester fiber.
(II) technical scheme
In order to achieve the purpose, the invention provides the following technical scheme: a preparation method of electromagnetic shielding functionalized regenerated polyester fiber comprises the following steps:
(1) Ultrasonically dispersing 100 parts by weight of amino modified nano ferroferric oxide into a reaction solvent, then dropwise adding 300-700 parts by weight of 4-bromobutyryl chloride and 120-300 parts by weight of catalyst in an ice bath, uniformly stirring, reacting at 15-30 ℃ for 6-24h, filtering the solvent after the reaction, sequentially washing products and drying to obtain the bromobutylamide modified ferroferric oxide.
(2) Ultrasonically dispersing 100 parts by weight of bromobutanamide modified ferroferric oxide into N, N-dimethylformamide, then adding 400-1000 parts by weight of polypyrrole, stirring for dissolving, adding potassium hydroxide for adjusting the pH value of the solution, stirring for reacting, filtering the solvent, washing with distilled water and drying to obtain the polypyrrole modified ferroferric oxide.
(3) And (3) slicing, performing fluidized bed type pre-crystallization and drying treatment on the PET polyester waste material, and then mixing with polypyrrole modified ferroferric oxide for spinning to obtain the electromagnetic shielding functionalized regenerated polyester fiber.
Preferably, the catalyst in the step (1) is triethylamine or N, N-diisopropylethylamine.
Preferably, the reaction solvent in (2) is any one of dichloromethane, chloroform, acetone, tetrahydrofuran and ethyl acetate.
Preferably, the pH of the solution adjusted in (2) is 10-13.
Preferably, the speed in the spinning in the step (3) is controlled to be 500-800m/min, the hot drawing temperature is 70-90 ℃, the drawing multiplying power is 3-4 times, and the heat setting temperature is 160-180 ℃.
Preferably, the mass fraction of polypyrrole modified ferroferric oxide in the electromagnetic shielding functionalized regenerated polyester fiber is 1-8%.
Preferably, the preparation method of the amino modified nano ferroferric oxide comprises the following steps: ultrasonically dispersing 100 parts by weight of nano ferroferric oxide into an ethanol water solution, then dropwise adding 400-800 parts by weight of 3-aminopropyltriethoxysilane, stirring and reacting at 50-70 ℃ for 6-12h, filtering a solvent after the reaction, washing with ethanol and drying to obtain amino modified nano ferroferric oxide.
(III) advantageous technical effects
The method comprises the steps of modifying the surface of nano ferroferric oxide by using 3-aminopropyltriethoxysilane, carrying out amidation reaction on the nano ferroferric oxide and 4-bromobutyryl chloride to obtain bromobutylamide modified ferroferric oxide, and carrying out substitution reaction on introduced bromobutyl and imino of polypyrrole under the catalysis of potassium hydroxide, so that a polypyrrole molecular chain is grafted on the surface of the nano ferroferric oxide to obtain the polypyrrole modified ferroferric oxide.
The PET polyester waste material is recycled and is spun with polypyrrole-modified ferroferric oxide to obtain electromagnetic shielding functionalized regenerated polyester fiber, and after the nano ferroferric oxide is grafted on the surface of polypyrrole, the nano ferroferric oxide has good compatibility and dispersibility in the polyester fiber, the agglomeration of the nano ferroferric oxide is reduced, and the interface polarization loss is favorably improved; polypyrrole modified ferroferric oxide is used as an electromagnetic shielding and wave absorbing agent, polyester fiber is used as a carrier, and electromagnetic waves are absorbed and lost through dielectric loss and interface polarization loss to form the electromagnetic shielding material with low density, light weight, wide absorption frequency band and high shielding effectiveness.
Detailed Description
Example 1
(1) Ultrasonically dispersing 100 parts by weight of nano ferroferric oxide into an ethanol water solution, then dropwise adding 400 parts by weight of 3-aminopropyl triethoxysilane, stirring and reacting at 70 ℃ for 8 hours, filtering a solvent after the reaction, washing with ethanol and drying to obtain the amino modified nano ferroferric oxide.
(2) Ultrasonically dispersing 100 parts by weight of amino modified nano ferroferric oxide into an ethyl acetate reaction solvent, then dropwise adding 300 parts by weight of 4-bromobutyryl chloride and 120 parts by weight of catalyst triethylamine in an ice bath, uniformly stirring, reacting at 15 ℃ for 24 hours after uniform stirring, filtering the solvent after reaction, sequentially washing products and drying to obtain the bromobutylamide modified ferroferric oxide.
(3) Ultrasonically dispersing 100 parts by weight of bromobutanamide modified ferroferric oxide into N, N-dimethylformamide, then adding 400 parts by weight of polypyrrole, stirring for dissolving, adding potassium hydroxide for adjusting the pH value of the solution to 12, stirring for reacting, filtering the solvent, washing with distilled water, and drying to obtain the polypyrrole modified ferroferric oxide.
(4) The PET polyester waste material is subjected to slicing, fluidized bed type pre-crystallization and drying treatment, and then is mixed with polypyrrole modified ferroferric oxide for spinning, wherein the speed in spinning is controlled to be 600m/min, the hot traction temperature is 80 ℃, the traction rate is 3 times, and the heat setting temperature is 180 ℃, so that the electromagnetic shielding functionalized regenerated polyester fiber is obtained, wherein the mass fraction of the polypyrrole modified ferroferric oxide is 1%.
Example 2
(1) Ultrasonically dispersing 100 parts by weight of nano ferroferric oxide into an ethanol water solution, then dropwise adding 500 parts by weight of 3-aminopropyltriethoxysilane, stirring and reacting at 50 ℃ for 12 hours, filtering a solvent after the reaction, washing with ethanol and drying to obtain amino modified nano ferroferric oxide.
(2) Ultrasonically dispersing 100 parts by weight of amino modified nano ferroferric oxide into a dichloromethane reaction solvent, then dropwise adding 400 parts by weight of 4-bromobutyryl chloride and 180 parts by weight of catalyst triethylamine in an ice bath, uniformly stirring, reacting for 6 hours at 20 ℃, filtering the solvent after the reaction, sequentially washing products and drying to obtain the bromobutylamide modified ferroferric oxide.
(3) Ultrasonically dispersing 100 parts by weight of bromobutanamide modified ferroferric oxide into N, N-dimethylformamide, then adding 600 parts by weight of polypyrrole, stirring to dissolve, adding potassium hydroxide to adjust the pH value of the solution to 12, stirring to react, filtering the solvent, washing with distilled water, and drying to obtain the polypyrrole modified ferroferric oxide.
(4) The PET polyester waste material is subjected to slicing, fluidized bed type pre-crystallization and drying treatment, and then is mixed with polypyrrole modified ferroferric oxide for spinning, wherein the speed in spinning is controlled to be 800m/min, the hot traction temperature is 70 ℃, the traction rate is 4 times, and the heat setting temperature is 180 ℃, so that the electromagnetic shielding functionalized regenerated polyester fiber is obtained, wherein the mass fraction of the polypyrrole modified ferroferric oxide is 3%.
Example 3
(1) Ultrasonically dispersing 100 parts by weight of nano ferroferric oxide into an ethanol water solution, then dropwise adding 600 parts by weight of 3-aminopropyl triethoxysilane, stirring and reacting at 60 ℃ for 12 hours, filtering a solvent after the reaction, washing with ethanol and drying to obtain the amino modified nano ferroferric oxide.
(2) Ultrasonically dispersing 100 parts by weight of amino modified nano ferroferric oxide into a tetrahydrofuran reaction solvent, then dropwise adding 500 parts by weight of 4-bromobutyryl chloride and 200 parts by weight of catalyst N, N-diisopropylethylamine in an ice bath, uniformly stirring, reacting for 12 hours at 30 ℃, filtering the solvent after the reaction, sequentially washing the product and drying to obtain the bromobutylamide modified ferroferric oxide.
(3) Ultrasonically dispersing 100 parts by weight of bromobutanamide modified ferroferric oxide into N, N-dimethylformamide, then adding 700 parts by weight of polypyrrole, stirring for dissolving, adding potassium hydroxide for adjusting the pH value of the solution to 13, stirring for reacting, filtering the solvent, washing with distilled water and drying to obtain the polypyrrole modified ferroferric oxide.
(4) The PET polyester waste material is subjected to slicing, fluidized bed type pre-crystallization and drying treatment, and then is mixed with polypyrrole modified ferroferric oxide for spinning, wherein the speed in spinning is controlled to be 800m/min, the hot traction temperature is 90 ℃, the traction rate is 3 times, and the heat setting temperature is 160 ℃, so that the electromagnetic shielding functionalized regenerated polyester fiber is obtained, wherein the mass fraction of the polypyrrole modified ferroferric oxide is 5%.
Example 4
(1) Ultrasonically dispersing 100 parts by weight of nano ferroferric oxide into an ethanol water solution, then dropwise adding 600 parts by weight of 3-aminopropyltriethoxysilane, stirring and reacting at 70 ℃ for 12 hours, filtering a solvent after the reaction, washing with ethanol and drying to obtain amino modified nano ferroferric oxide.
(2) Ultrasonically dispersing 100 parts by weight of amino modified nano ferroferric oxide into an acetone reaction solvent, then dropwise adding 500 parts by weight of 4-bromobutyryl chloride and 250 parts by weight of catalyst triethylamine in an ice bath, uniformly stirring, reacting at 20 ℃ for 18 hours after uniform stirring, filtering the solvent after reaction, sequentially washing products and drying to obtain the bromobutylamide modified ferroferric oxide.
(3) Ultrasonically dispersing 100 parts by weight of bromobutanamide modified ferroferric oxide into N, N-dimethylformamide, then adding 800 parts by weight of polypyrrole, stirring for dissolving, adding potassium hydroxide for adjusting the pH value of the solution to 13, stirring for reacting, filtering the solvent, washing with distilled water and drying to obtain the polypyrrole modified ferroferric oxide.
(4) The PET polyester waste material is subjected to slicing, fluidized bed type pre-crystallization and drying treatment, and then is mixed with polypyrrole modified ferroferric oxide for spinning, wherein the speed in spinning is controlled to be 800m/min, the hot traction temperature is 80 ℃, the traction rate is 4 times, and the heat setting temperature is 160 ℃, so that the electromagnetic shielding functionalized regenerated polyester fiber is obtained, wherein the mass fraction of the polypyrrole modified ferroferric oxide is 6%.
Example 5
(1) Ultrasonically dispersing 100 parts by weight of nano ferroferric oxide into an ethanol water solution, then dropwise adding 800 parts by weight of 3-aminopropyltriethoxysilane, stirring and reacting at 60 ℃ for 10 hours, filtering a solvent after the reaction, washing with ethanol and drying to obtain amino modified nano ferroferric oxide.
(2) Ultrasonically dispersing 100 parts by weight of amino modified nano ferroferric oxide into a dichloromethane solvent, then dropwise adding 700 parts by weight of 4-bromobutyryl chloride and 300 parts by weight of catalyst N, N-diisopropylethylamine in an ice bath, uniformly stirring, reacting at 30 ℃ for 6 hours after uniform stirring, filtering the solvent after reaction, sequentially washing products and drying to obtain the bromobutylamide modified ferroferric oxide.
(3) Ultrasonically dispersing 100 parts by weight of bromobutanamide modified ferroferric oxide into N, N-dimethylformamide, then adding 1000 parts by weight of polypyrrole, stirring for dissolving, adding potassium hydroxide for adjusting the pH value of the solution to 10, stirring for reacting, filtering the solvent, washing with distilled water and drying to obtain the polypyrrole modified ferroferric oxide.
(4) The PET polyester waste material is subjected to slicing, fluidized bed type pre-crystallization and drying treatment, and then is mixed with polypyrrole modified ferroferric oxide for spinning, wherein the speed in spinning is controlled to be 800m/min, the hot traction temperature is 70 ℃, the traction rate is 4 times, and the heat setting temperature is 170 ℃, so that the electromagnetic shielding functionalized regenerated polyester fiber is obtained, wherein the mass fraction of the polypyrrole modified ferroferric oxide is 8%.
Pressing the regenerated polyester fiber with the electromagnetic shielding function into an annular sample with the thickness of 2mm, the outer diameter of 3cm and the inner diameter of 1cm, and testing the electromagnetic shielding performance of the sample by a vector network tester.
The maximum effective absorption bandwidth of the electromagnetic shielding functionalized regenerated polyester fiber is less than or equal to-10 dB, 4.7GHz (8.3-13.1 GHz) is realized, and the optimal reflection loss is-24.6 dB.
Claims (7)
1. A preparation method of electromagnetic shielding functionalized regenerated polyester fiber is characterized by comprising the following steps: the preparation method comprises the following steps:
(1) Ultrasonically dispersing 100 parts by weight of amino modified nano ferroferric oxide into a reaction solvent, then dropwise adding 300-700 parts by weight of 4-bromobutyryl chloride and 120-300 parts by weight of a catalyst in an ice bath, uniformly stirring, reacting at 15-30 ℃ for 6-24h, filtering the solvent after the reaction, washing and drying to obtain bromobutylamide modified ferroferric oxide;
(2) Ultrasonically dispersing 100 parts by weight of bromobutanamide modified ferroferric oxide into N, N-dimethylformamide, then adding 400-1000 parts by weight of polypyrrole, stirring to dissolve, adding potassium hydroxide to adjust the pH value of the solution, stirring to react, filtering the solvent, washing and drying to obtain polypyrrole modified ferroferric oxide;
(3) And (3) slicing, performing fluidized bed type pre-crystallization and drying treatment on the PET polyester waste material, and then mixing with polypyrrole-modified ferroferric oxide for spinning to obtain the electromagnetic shielding functionalized regenerated polyester fiber.
2. The method for preparing an electromagnetically shielding functionalized recycled polyester fiber as claimed in claim 1, wherein: the catalyst in the step (1) is triethylamine or N, N-diisopropylethylamine.
3. The method for preparing an electromagnetically shielding functionalized recycled polyester fiber as claimed in claim 1, wherein: the reaction solvent in the step (2) is any one of dichloromethane, trichloromethane, acetone, tetrahydrofuran and ethyl acetate.
4. The method for preparing an electromagnetically shielding functionalized recycled polyester fiber as claimed in claim 1, wherein: and (3) adjusting the pH value of the solution in the step (2) to be 10-13.
5. The method for preparing an electromagnetically shielding functionalized recycled polyester fiber as claimed in claim 1, wherein: in the step (3), the speed in spinning is controlled to be 500-800m/min, the hot drawing temperature is 70-90 ℃, the drawing multiplying power is 3-4 times, and the heat setting temperature is 160-180 ℃.
6. The method for preparing an electromagnetically shielding functionalized recycled polyester fiber as claimed in claim 1, wherein: the mass fraction of polypyrrole modified ferroferric oxide in the electromagnetic shielding functionalized regenerated polyester fiber is 1-8%.
7. The method for preparing an electromagnetically shielding functionalized recycled polyester fiber as claimed in claim 1, wherein: the preparation method of the amino modified nano ferroferric oxide comprises the following steps: ultrasonically dispersing 100 parts by weight of nano ferroferric oxide into an ethanol water solution, then dropwise adding 400-800 parts by weight of 3-aminopropyltriethoxysilane, stirring and reacting at 50-70 ℃ for 6-12h, filtering a solvent after the reaction, washing and drying to obtain amino modified nano ferroferric oxide.
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| CN202211355621.2A CN115652469A (en) | 2022-11-01 | 2022-11-01 | Electromagnetic shielding functionalized regenerated polyester fiber and preparation method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117447685A (en) * | 2023-12-22 | 2024-01-26 | 山东佳纳环保科技有限公司 | Waste fiber spinning and waste plastic mixed circulation recovery process |
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| KR20150124502A (en) * | 2014-04-28 | 2015-11-06 | 국방기술품질원 | Multifunctional cover and tent having broadband radar shielding, waterproof, antimycotic, fireproof properties |
| CN112160167A (en) * | 2020-10-10 | 2021-01-01 | 天津工业大学 | Modified ferroferric oxide/polyaniline shielding composite fabric and preparation method thereof |
| CN112695517A (en) * | 2020-12-16 | 2021-04-23 | 苏州八玺纺织有限公司 | Magnetic polyester fabric and preparation method thereof |
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2022
- 2022-11-01 CN CN202211355621.2A patent/CN115652469A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102154832A (en) * | 2010-12-31 | 2011-08-17 | 泉州红瑞兴纺织有限公司 | Fabric coating finishing agent with electromagnetic shielding function and preparation method thereof |
| KR20150124502A (en) * | 2014-04-28 | 2015-11-06 | 국방기술품질원 | Multifunctional cover and tent having broadband radar shielding, waterproof, antimycotic, fireproof properties |
| CN112160167A (en) * | 2020-10-10 | 2021-01-01 | 天津工业大学 | Modified ferroferric oxide/polyaniline shielding composite fabric and preparation method thereof |
| CN112695517A (en) * | 2020-12-16 | 2021-04-23 | 苏州八玺纺织有限公司 | Magnetic polyester fabric and preparation method thereof |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN117447685A (en) * | 2023-12-22 | 2024-01-26 | 山东佳纳环保科技有限公司 | Waste fiber spinning and waste plastic mixed circulation recovery process |
| CN117447685B (en) * | 2023-12-22 | 2024-03-19 | 山东佳纳环保科技有限公司 | Waste fiber spinning and waste plastic mixed circulation recovery process |
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