Enhancement of thermal and electrical conductivities of cyanoacrylate by addition of carbon based nanofillers
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Enhancement of thermal and electrical conductivities of cyanoacrylate by addition of carbon based nanofillers Hui‑Chiang Teoh1,2 · Khatijah A. Yaacob1 · A. A. Saad3 · M. Mariatti1 Received: 4 March 2018 / Accepted: 31 March 2018 © Springer Science+Business Media, LLC, part of Springer Nature 2018
Abstract Nanocomposites with addition of graphite nanoparticles, multi-walled carbon nanotubes (MWCNTs), and graphene in cyanoacrylate from 0.1 to 0.5 or 0.6 vol% were fabricated. The influences of morphology towards thermal and electrical conductivities of cyanoacrylate nanocomposites were studied. Microstructure based on field emission scanning electron microscopy and transmission electron microscopy images indicated that nanofillers have unique morphologies which affect the thermal and electrical conductivities of nanocomposites. The maximum thermal conductivity values were measured at 0.3195 and 0.3500 W/mK for 0.4 vol% of MWCNTs/cyanoacrylate and 0.5 vol% of graphene/cyanoacrylate nanocomposite, respectively. These values were improved as high as 204 and 233% as compared with the thermal conductivity of neat cyanoacrylate. Nanocomposites with 0.2 vol% MWCNTs/cyanoacrylate fulfilled the requirement for ESD protection material with surface resistivity of 6.52 × 106 Ω/sq and volume resistivity of 6.97 × 109 Ω m. On the other hand, 0.5 vol% MWCNTs/cyanoacrylate nanocomposite can be used as electrical conductive adhesive. Compared with graphene and graphite nanofillers, MWCNTs is the best filler to be used in cyanoacrylate for improvement in thermal and electrical conductivity enhancement at low filler loading.
1 Introduction Polymer-based nanocomposites have been used in various industry, such as microelectronic packaging application [1], electromagnetic shielding material [2], and logistics packaging [3]. However, polymer is well known for its poor thermal and electrical conductivities. The thermally and electrically enhanced polymer would bring benefit to many applications, such as heat sinks in electronic systems [4]. Furthermore, the demand of polymer in electronic units such as interconnection adhesive and housing to physically conserve the electronic components are increased every year. Electronic parts are easy to be destroyed from electrostatic discharge * M. Mariatti [email protected] 1
School of Materials and Mineral Resources Engineering, Universiti Sains Malaysia, Engineering Campus, 14300 Nibong Tebal, Penang, Malaysia
2
WD Media (Malaysia) Sdn, Plot 72 Bayan Lepas Industrial Park, Phase IV, 11900 Bayan Lepas, Penang, Malaysia
3
School of Mechanical Engineering, Universiti Sains Malaysia, Engineering Campus, 14300 Nibong Tebal, Penang, Malaysia
(ESD) during manufacturing, assembly, storage and shipping [5]. It was estimated that ESD-related costs in the USA are around 5% of total sales [5]. In order to save billions of dollars, an ESD control system should be highly concerned in production and handling. The important of ESD protection has raised up the awareness of researchers to fulfil the int
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