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Gołofit, Tomasz
in Cooperation with on an Cooperation-Score of 37%
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Publications (6/6 displayed)
- 2023Flexible carbon‐based fluoropolymer composites for effective <scp>EMI</scp> shielding and heat dissipationcitations
- 2023Flexible THV-based nanocomposites filled with GNPs/MWCNTs for advanced applications in EMI shielding and thermal management.citations
- 2018Poly(hydroxyurethane)s with diethyl tartrate-based amide backbone by an isocyanate-free route: Use as adhesivescitations
- 2018Application and properties of aluminum in rocket propellants and pyrotechnicscitations
- 2015Facile route to multigram synthesis of environmentally friendly non-isocyanate polyurethanescitations
- 2015Thermal decomposition properties and compatibility of CL-20 with binders HTPB, PBAN, GAP and polyNIMMOcitations
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article
Flexible carbon‐based fluoropolymer composites for effective <scp>EMI</scp> shielding and heat dissipation
Abstract
<jats:title>Abstract</jats:title><jats:sec><jats:label /><jats:p>Contemporary applications require protection against overheating and electromagnetic radiation interference, preferably with reduced mass and enhanced basic performance, such as flammability or chemical or UV resistance and often also low or non‐electrically conductive. Materials exhibiting all these functions can be designed, but there is usually not just one but several different materials with advanced processing requirements; therefore, a simple manufacturing method providing percolation path formation involving powder mixing and hot pressing of providing excellent flexibility terpolymer comprising tetrafluoroethylene, hexafluoropropylene, and vinylidene fluoride monomeric units (THV)‐based nanocomposites is presented here. The addition of the graphene nanoplatelets (GNPs) and multiwalled carbon nanotubes (MWCNTs) significantly improves the EMI shielding effectiveness, up to SE<jats:sub>TOT</jats:sub> = 23 dB for the GNP filler, SE<jats:sub>TOT</jats:sub> = 17 dB for the MWCNT/GNP filler per 1 mm samples thickness and enhances almost 900% the thermal conductivity to almost 2 W/mK per GNP filler. Besides this improvement, the electrical conductivity remains at a low level, not surpassing 1.5 S/cm, which is, as mentioned above, beneficial in many applications, especially thermal management. Moreover, the proposed material is an excellent alternative to flexible foam or sponges.</jats:p></jats:sec><jats:sec><jats:title>Highlights</jats:title><jats:p><jats:list list-type="bullet"> <jats:list-item><jats:p>Structural, electrical, EMI shielding, and thermal properties of flexible THV/GNP, THV/MWCNT, and THV/MWCNT/GNP nanocomposites are shown here.</jats:p></jats:list-item> <jats:list-item><jats:p>The oriented, long as over 1 mm filler paths are observed.</jats:p></jats:list-item> <jats:list-item><jats:p>The GNP filler provides the best thermal conductivity enhancement of over 800% compared to bare polymer.</jats:p></jats:list-item> <jats:list-item><jats:p>The EMI shielding effectiveness is dominated by absorption for all THV‐based nanocomposites.</jats:p></jats:list-item> <jats:list-item><jats:p>The electrical conductivity follows the power law, reaching σ = 1.49 S/cm for GNP‐filled nanocomposites.</jats:p></jats:list-item> </jats:list></jats:p></jats:sec>