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Highly Bendable and Durable Waterproof Paper for Ultra-High Electromagnetic Interference Shielding

Polymers, 2019-09, Vol.11 (9), p.1486 [Peer Reviewed Journal]

2019 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License. ;2019 by the authors. 2019 ;ISSN: 2073-4360 ;EISSN: 2073-4360 ;DOI: 10.3390/polym11091486 ;PMID: 31547358

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  • Title:
    Highly Bendable and Durable Waterproof Paper for Ultra-High Electromagnetic Interference Shielding
  • Author: Ren, Fang ; Guo, Han ; Guo, Zheng-Zheng ; Jin, Yan-Ling ; Duan, Hong-Ji ; Ren, Peng-Gang ; Yan, Ding-Xiang
  • Subjects: Cellulose ; Cellulose fibers ; cellulose paper ; Ceramic coatings ; Conductivity ; Contact angle ; Dip coatings ; Electromagnetic shielding ; EMI shielding ; flexibility ; Hydrophobicity ; Immersion coating ; Morphology ; Nanowires ; Scanning electron microscopy ; silver nanowire ; Superhigh frequencies ; waterproofness
  • Is Part Of: Polymers, 2019-09, Vol.11 (9), p.1486
  • Description: An efficient electromagnetic interference (EMI) shielding paper with excellent water repellency and mechanical flexibility has been developed, by assembling silver nanowires (AgNWs) and hydrophobic inorganic ceramic on the cellulose paper, via a facile dip-coating preparation. Scanning electron microscope (SEM) observations confirmed that AgNWs were interconnected and densely coated on both sides of the cellulose fiber, which endows the as-prepared paper with high conductivity (33.69 S/cm in-plane direction) at a low AgNW area density of 0.13 mg/cm2. Owing to multiple reflections and scattering between the two outer highly conductive surfaces, the obtained composite presented a high EMI shielding effectiveness (EMI SE) of up to 46 dB against the X band, and ultrahigh specific EMI SE of 271.2 dB mm–1. Moreover, the prepared hydrophobic AgNW/cellulose (H-AgNW/cellulose) composite paper could also maintain high EMI SE and extraordinary waterproofness (water contact angle > 140°) by suffering dozens of bending tests or one thousand peeling tests. Overall, such a multifunctional paper might have practical applications in packaging conductive components and can be used as EMI shielding elements in advanced application areas, even under harsh conditions.
  • Publisher: Basel: MDPI AG
  • Language: English
  • Identifier: ISSN: 2073-4360
    EISSN: 2073-4360
    DOI: 10.3390/polym11091486
    PMID: 31547358
  • Source: TestCollectionTL3OpenAccess
    GFMER Free Medical Journals
    PubMed Central
    ROAD: Directory of Open Access Scholarly Resources
    ProQuest Central
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