Highly flexible and ultra-thin carbon-fabric/Ag/waterborne polyurethane film for ultra-efficient EMI shielding
We report in this work an ultra-thin and flexible carbon-fabric/Ag/waterborne polyurethane film (named CEF-NF/Ag/WPU film) that exhibits ultra-efficient EMI shielding property using electroless Ag plating combined with the enhanced-pressing process. The optimal CEF-NF/Ag/WPU film (0.183 mm) displays...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2020-01-01
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| Series: | Materials & Design |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S0264127519306653 |
| _version_ | 1818060711572537344 |
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| author | Di Xing Longsheng Lu Yingxi Xie Yong Tang Kwok Siong Teh |
| author_facet | Di Xing Longsheng Lu Yingxi Xie Yong Tang Kwok Siong Teh |
| author_sort | Di Xing |
| collection | DOAJ |
| description | We report in this work an ultra-thin and flexible carbon-fabric/Ag/waterborne polyurethane film (named CEF-NF/Ag/WPU film) that exhibits ultra-efficient EMI shielding property using electroless Ag plating combined with the enhanced-pressing process. The optimal CEF-NF/Ag/WPU film (0.183 mm) displays an ultra-high electrical conductivity of 11986.8 S/cm and a superior EMI-SE of 102.9 dB, which demonstrates the Ag deposition can effectively improve the electrical and EMI shielding performance. Compared with the film without an enhanced-pressing, the EMI-SE of a CEF-NF/Ag/WPU film with an enhanced-pressing showed an increase of about 37.5%. The porous structure deposited with Ag particles coating endows this composite film with remarkable EMI-SE at a thin thickness and lightweight (SSEt up to 5808.7 dB cm2 g−1) which outperforms most works. At last, this CEF-NF/Ag/WPU film performs outstanding reliability after ultrasound treatment, bending test and thermal reliability test. In summary, this film has great potential in the fields of wearable devices and flexible materials. Keywords: EMI shielding, Electroless Ag deposition, Nonwoven film, Ultra-thin, Flexible |
| first_indexed | 2024-12-10T13:36:46Z |
| format | Article |
| id | doaj.art-0398c6eb73024993bc717111b86fc9ab |
| institution | Directory Open Access Journal |
| issn | 0264-1275 |
| language | English |
| last_indexed | 2024-12-10T13:36:46Z |
| publishDate | 2020-01-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Materials & Design |
| spelling | doaj.art-0398c6eb73024993bc717111b86fc9ab2022-12-22T01:46:47ZengElsevierMaterials & Design0264-12752020-01-01185Highly flexible and ultra-thin carbon-fabric/Ag/waterborne polyurethane film for ultra-efficient EMI shieldingDi Xing0Longsheng Lu1Yingxi Xie2Yong Tang3Kwok Siong Teh4School of Mechanical & Automotive Engineering, South China University of Technology, 381#Wushan Road, Guangzhou, 510641, ChinaSchool of Mechanical & Automotive Engineering, South China University of Technology, 381#Wushan Road, Guangzhou, 510641, China; Corresponding author.School of Mechanical & Automotive Engineering, South China University of Technology, 381#Wushan Road, Guangzhou, 510641, ChinaSchool of Mechanical & Automotive Engineering, South China University of Technology, 381#Wushan Road, Guangzhou, 510641, ChinaSchool of Engineering, San Francisco State University, San Francisco, CA, 94132, United StatesWe report in this work an ultra-thin and flexible carbon-fabric/Ag/waterborne polyurethane film (named CEF-NF/Ag/WPU film) that exhibits ultra-efficient EMI shielding property using electroless Ag plating combined with the enhanced-pressing process. The optimal CEF-NF/Ag/WPU film (0.183 mm) displays an ultra-high electrical conductivity of 11986.8 S/cm and a superior EMI-SE of 102.9 dB, which demonstrates the Ag deposition can effectively improve the electrical and EMI shielding performance. Compared with the film without an enhanced-pressing, the EMI-SE of a CEF-NF/Ag/WPU film with an enhanced-pressing showed an increase of about 37.5%. The porous structure deposited with Ag particles coating endows this composite film with remarkable EMI-SE at a thin thickness and lightweight (SSEt up to 5808.7 dB cm2 g−1) which outperforms most works. At last, this CEF-NF/Ag/WPU film performs outstanding reliability after ultrasound treatment, bending test and thermal reliability test. In summary, this film has great potential in the fields of wearable devices and flexible materials. Keywords: EMI shielding, Electroless Ag deposition, Nonwoven film, Ultra-thin, Flexiblehttp://www.sciencedirect.com/science/article/pii/S0264127519306653 |
| spellingShingle | Di Xing Longsheng Lu Yingxi Xie Yong Tang Kwok Siong Teh Highly flexible and ultra-thin carbon-fabric/Ag/waterborne polyurethane film for ultra-efficient EMI shielding Materials & Design |
| title | Highly flexible and ultra-thin carbon-fabric/Ag/waterborne polyurethane film for ultra-efficient EMI shielding |
| title_full | Highly flexible and ultra-thin carbon-fabric/Ag/waterborne polyurethane film for ultra-efficient EMI shielding |
| title_fullStr | Highly flexible and ultra-thin carbon-fabric/Ag/waterborne polyurethane film for ultra-efficient EMI shielding |
| title_full_unstemmed | Highly flexible and ultra-thin carbon-fabric/Ag/waterborne polyurethane film for ultra-efficient EMI shielding |
| title_short | Highly flexible and ultra-thin carbon-fabric/Ag/waterborne polyurethane film for ultra-efficient EMI shielding |
| title_sort | highly flexible and ultra thin carbon fabric ag waterborne polyurethane film for ultra efficient emi shielding |
| url | http://www.sciencedirect.com/science/article/pii/S0264127519306653 |
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