Enhanced dispersion stability and interfacial damping of POSS-functionalized graphene oxide in PDMS nanocomposites

Polyhedral oligomeric silsesquioxane (POSS) functionalized graphene oxide (GO) is prepared to improve the dispersity of GO nanofillers in a polydimethylsiloxane matrix. Improved interfacial affinity of the GO-POSS with a polymer matrix is characterized by a small amplitude oscillatory shear test. We...

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Bibliographic Details
Published in:Functional composites and structures 2022-09, Vol.4 (3), p.35009
Main Authors: Kim, Bogyoung, Youn, Byungwook, Song, Yeeun, Lee, Doojin
Format: Article
Language:English
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Summary:Polyhedral oligomeric silsesquioxane (POSS) functionalized graphene oxide (GO) is prepared to improve the dispersity of GO nanofillers in a polydimethylsiloxane matrix. Improved interfacial affinity of the GO-POSS with a polymer matrix is characterized by a small amplitude oscillatory shear test. We confirm that the POSS-functionalized GO induces better filler dispersibility and less filler aggregation in the matrix, resulting in enhanced elasticity in the solution. After curing, the POSS interface works as a soft and lubricating layer at the interface, which enhances interfacial damping within the nanocomposites.
ISSN:2631-6331
2631-6331
DOI:10.1088/2631-6331/ac93e3