Effect of Graphene Nanoplatelets on the Structure, the Morphology, and the Dielectric Behavior of Low-Density Polyethylene Nanocomposites

Materials

Emmanouel Koudoumas¹  Mirela Suchea¹  Ioan Valentin Tudose¹  Athena Maniadi²  Maria Vamvakaki²  Zaharias Viskadourakis³  George Kenanakis³  Marian Popescu⁴  Cristina Pachiu⁴  Cosmin Romanitan⁴  Octavian N. Ionescu⁴ 

[1] Center of Materials Technology and Photonics, Hellenic Mediterranean University (Former Technological Educational Institute of Crete), 71004 Heraklion, Greece;Department of Materials Science and Technology, University of Crete, Vassilika Voutes, 70013 Heraklion, Greece;Institute of Electronic Structure & Laser (IESL), Foundation for Research and Technology (FORTH) Hellas, 71110 Heraklion, Greece;National Institute for Research and Development in Microtechnologies (IMT-Bucharest), 126A, Erou Iancu Nicolae Street, 077190 Bucharest, Romania;

关键词: polymer nanocomposites;    low-density polyethylene;    graphene;    dielectric properties;   

DOI  :  10.3390/ma13214776

来源: DOAJ

【 摘 要 】

The incorporation of graphene nanoplatelets (GnPs) within a polymer matrix can play an important role in the physical properties and the functionality of the composite material. Composites consisting of low-density polyethylene (LDPE) and GnPs of different concentrations were developed by mixing GnPs with a molten form of the polymeric matrix. The effect of the GnPs content on the morphological, structural, and electrical properties of the composites were investigated. As shown, graphene presence and its concentration significantly modified the polymer matrix properties, a behavior that can be employed for tailoring its applicability in electrical applications. It was found that the increase of the graphene platelets concentration seems to promote the formation of graphene agglomerates, air gaps, and inhomogeneities, while higher dielectric constant/lower dielectric losses can be achieved.

【 授权许可】

Unknown