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Title: Electrically conductive melt-processed blends of polymeric conductive additives with styrenic thermoplastics
Authors: Ng, Yean Thye
Keywords: Electro-static discharge
Percolation
Inherently conductive polymer
Inherently dissipative polymer
Conductive polymer
Melt processable polyaniline
Polyether-olefin block copolymer
Polystyrene
Styrene-butadiene
Styrene-acrylonitrile
Acrylonitrile-butadiene-styrene
Polyethylene glycol
Styrene/ethylene-butylene/styrene
Issue Date: 2012
Publisher: © Y.T. Ng
Abstract: The growing demand in portable and compact consumer devices and appliances has resulted in the need for the miniaturisation of electronic components. These miniaturised electronic components are sensitive and susceptible to damage by voltages as low as 20V. Electrically conductive styrenic thermoplastics are widely used in electronic packaging applications to protect these sensitive electronic components against electro-static discharge (ESD) during manufacturing, assembly, storage and shipping. Such ESD applications often require the optimal volume resistance range of ≥ 1.0x105 to < 1.0x108 Ω. The best known method to render styrenic thermoplastics conductive is by the incorporation of conductive fillers, such as carbon black but the main limitation is the difficulty in controlling the conductivity level due to the steep percolation curve. Thus the aim of this research is to develop electrically conductive styrenic thermoplastics by blending several styrenic resins with polymeric conductive additives to achieve optimal volume resistance range for ESD applications with the ease in controlling the conductivity level. [Continues.]
Description: A Doctoral Thesis. Submitted in partial fulfilment of the requirements for the award of Doctor of Philosophy of Loughborough University.
URI: https://dspace.lboro.ac.uk/2134/11016
Appears in Collections:PhD Theses (Materials)

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