Enhanced mechanical and thermal properties of electrically conductive TPNR/GNP nanocomposites assisted with ultrasonication


Autoři: Ruey Shan Chen aff001;  Mohd Farid Hakim Mohd Ruf aff001;  Dalila Shahdan aff001;  Sahrim Ahmad aff001
Působiště autorů: Materials Science Program, Faculty of Science and Technology, Universiti Kebangsaan Malaysia, UKM Bangi, Selangor D.E., Malaysia aff001
Vyšlo v časopise: PLoS ONE 14(9)
Kategorie: Research Article
doi: 10.1371/journal.pone.0222662

Souhrn

Thermoplastic natural rubber (TPNR) was compounded with graphene nanoplatelets (GNP) via ultrasonication and melt blending. The effects of ultrasonication period (1-4 hours) and GNP weight fraction (0.5, 1.0, 1.5 and 2.0 wt.%) on the mechanical, thermal and conductivity properties were investigated. Results showed that the 3 hours of ultrasonic treatment on LNR/GNP gave the greatest improvement in tensile strength of 25.8% (TPNR/GNP nanocomposites) as compared to those without ultrasonication. The TPNR nanocomposites containing 1.5 wt.% GNP exhibited the highest strength (16 MPa for tensile, 14 MPa for flexural and 11 kJm-2 for impact) and modulus (556 MPa and 869 MPa for tensile and flexural, respectively). The incorporation of GNP had enhanced the thermal stability. It can be concluded that the GNP had imparted the thermally and electrically conductive nature to the TPNR blend.

Klíčová slova:

Electric conductivity – Sonication – Ultrasonication – Vibration – Nanocomposites – Thermal conductivity – Graphene – Nanomaterials


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PLOS One


2019 Číslo 9

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