Polyethylene / Montmorillonite Nanocomposites: Effect of masterbatch composition and maleic anhydride on AC electrical breakdown performance

Green, C.D.; Vaughan, A. S.

doi:10.1109/icsd.2007.4290828

Cited by 4 publications

(1 citation statement)

References 6 publications

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“…In polymer-layered silicate nanocomposite systems, the proper addition of layered silicates leads to a great improvement in the properties of the matrix such as thermal stability and mechanical performance [8,9]. For insulating dielectric material, experiments have proven that the addition of an appropriate amount of montmorillonite (MMT) to silicone rubber, polypropylene, polyethylene, and ethylene-vinyl acetate (EVA) produces the nanocomposite with improved ability to inhibit electrical tree development as well as enhanced breakdown strength and heat resistance [10][11][12][13]. However, the influence of MMT dispersion morphology on the space charge formation and breakdown strength is rarely reported.…”

Section: Introductionmentioning

confidence: 99%

Improved Electric Strength and Space Charge Characterization in LDPE Composites with Montmorillonite Fillers

Liao

Bai

Yang

et al. 2013

Journal of Nanomaterials

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Space charge distribution and breakdown strength were investigated in composites of low density polyethylene (LDPE) and various contents of montmorillonite (MMT). The disperse performance of MMT in LDPE was observed with scanning electron microscopy (SEM) and X-ray diffraction. For MMT concentration of 1 wt%, the better intercalation of LDPE into MMT interlayers and the tighter interface structure between polymer-filler were observed, relative to MMT concentration of 3 and 5 wt%. Space charge profiles were obtained using the pulsed electroacoustic (PEA) method. Less space charge accumulated in the LDPE/MMT with MMT content of 1 wt% than that in pure LDPE, and space charge in the central of LDPE/MMT was much more uniformly. On the other hand, when MMT concentration was up to 3 and 5 wt%, large amounts of heterocharges were accumulated in the sample bulk. In MMT doped samples the dielectric strength increased up to a maximum at 1 wt% loading, and then decreases at 3 and 5 wt%.

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