Dramatic increase in polymer triboelectrification by transition from a glassy to rubbery state

Here we report an order of magnitude increase of triboelectric charge density of glassy polymers such as polystyrene (PS), polycarbonate (PC) and poly(methyl methacrylate) (PMMA) when heated above the glass transition temperature. Transition is accompanied by the larger force required for separation...

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Bibliographic Details
Published inMaterials horizons Vol. 7; no. 2; pp. 52 - 523
Main Authors Šutka, Andris, Linarts, Artis, M lnieks, Kaspars, Stiprais, Kl vs, Lap inskis, Linards
Format Journal Article
LanguageEnglish
Published Cambridge Royal Society of Chemistry 10.02.2020
Subjects
Charge density
Electrification
Glass transition temperature
Physical properties
Polymethyl methacrylate
Polystyrene resins
Surface roughness
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Summary:Here we report an order of magnitude increase of triboelectric charge density of glassy polymers such as polystyrene (PS), polycarbonate (PC) and poly(methyl methacrylate) (PMMA) when heated above the glass transition temperature. Transition is accompanied by the larger force required for separation. Undeniably, surface roughness plays a great role in contact electrification, however as we see in this work its impact is overrated when compared to the influence of physical properties. Glassy polymers show an impressive surge in triboelectric surface charge when crossing their respective T g . In a rubbery state they become softer and more adhesive, therefore heterolysis of polymer bonds and material transfer becomes more probable.
Bibliography:10.1039/c9mh01425j
Electronic supplementary information (ESI) available: Experimental details, Fig. S1-S8 and Table S1. See DOI
ISSN:2051-6347
2051-6355
DOI:10.1039/c9mh01425j