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Functionalized graphene-reinforced polysiloxane nanocomposite with improved mechanical performance and efficient healing properties

It is a challenge to design nanofiller reinforced self-healing nanocomposites with both improved mechanical properties and highly efficient self-healing properties. In this work, we report a self-healing polysiloxane nanocomposite using furan-functionalized graphene (G-FA) as reinforcement based on... Full description

Contained in: Journal of Applied Polymer Science Vol. 136, No. 27 (2019), p. 47725/1-11
Journal Title: Journal of Applied Polymer Science
Fulltext access:
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Links: Additional Link (dx.doi.org)
ISSN: 1097-4628
Additional Keywords: ELASTOMER
GRAPHEN
NANOKRISTALLINER-VERBUNDWERKSTOFF
SILICON:POLYMER
ZUGFESTIGKEIT
DOI: 10.1002/app.47725
Notes: Copyright: Metadaten: TEMA, Copyright WTI-Frankfurt-digital GmbH
Copyright: (C) Alle Rechte beim Herausgeber
Physical Description: 11 Seiten, 12 Bilder, 2 Tabellen
ID (e.g. DOI, URN): 10.1002/app.47725
PPN (Catalogue-ID): WTI063739429
Note: WTI TEMA DB
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520 |a It is a challenge to design nanofiller reinforced self-healing nanocomposites with both improved mechanical properties and highly efficient self-healing properties. In this work, we report a self-healing polysiloxane nanocomposite using furan-functionalized graphene (G-FA) as reinforcement based on Diels−Alder (DA) chemistry. The formed interactions between G-FA and polysiloxane chains were reversible DA bonds, which negligibly affected the nanocomposites healing efficiency. The self-healing polysiloxane nanocomposite with 6% G-FA has a tensile strength of 0.25 MPa that was improved by 140% when compared to an elastomer without G-FA. The healable polysiloxane nanocomposite recovered more than 90% of its tensile strength and 98% of its elongation-at-break, demonstrating that the nanocomposite exhibited highly efficient self-healing properties. [Copyright John Wiley & Sons. Reproduced with permission.] 
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