Dmitry Rychkov
University of Potsdam
43 Papers
93 Citations
Dmitry Rychkov is an academic researcher from University of Potsdam. The author has contributed to research in topics: Electret & Low-density polyethylene. The author has an hindex of 10, co-authored 41 publications. Previous affiliations of Dmitry Rychkov include Pedagogical University & Saint Petersburg State Institute of Technology.
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Papers
Increased permittivity nanocomposite dielectrics by controlled interfacial interactions
Denis N. McCarthy,Hristiyan Stoyanov,Dmitry Rychkov,Huelya Ragusch,Michael Melzer,Guggi Kofod +5 more
TL;DR: In this paper, surface functionalisation of the filler nanoparticles with silanes allows control of this interface, avoiding significant degradation of the other important material properties, particularly electrical breakdown strength, and resulting in a material that is demonstrated successfully as an active material in a dielectric elastomer actuator application with increased work output compared to the pure polymer.
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Chemical and physical surface modification of PTFE films—an approach to produce stable electrets
TL;DR: In this paper, the thermal stability of positive charge has been investigated in chemically and physically treated polytetrafluoroethylene (PTFE) films, and it has been found that virgin films, oriented by the manufacturer, display an increase in thermal stability with an increase of the initial value of surface potential.
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A new route to piezo-polymer transducers: 3D printing of polypropylene ferroelectrets
Yuri Andrey Olivato Assagra,Ruy Alberto Pisani Altafim,Joao P. do Carmo,Ruy Alberto Corrêa Altafim,Dmitry Rychkov,Werner Wirges,Reimund Gerhard +6 more
TL;DR: In this article, a promising approach for producing piezo-polymer transducers in a one-step process is presented, using 3D-printing technology and polypropylene (PP) filaments.
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Higher stabilities of positive and negative charge on tetrafluoroethylene–hexafluoropropylene copolymer (FEP) electrets treated with titanium-tetrachloride vapor
TL;DR: In this paper, the authors reported enhanced charge stabilities of the FEP films charged in negative as well as in positive corona discharges, and showed that the asymmetry in positive and negative charge stability can be overcome by means of chemical surface treatments.
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Enhanced electret charge stability on polyethylene films treated with titanium-tetrachloride vapor
TL;DR: In this article, low-density polyethylene (LDPE) films have been treated with titanium-tetrachloride vapor by means of the molecular layerdeposition method.
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