Tough semiconductor polycarbonate/multiwalled carbon nanotubes nanocomposites by rubber modification |
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| Affiliation: | 1. Department of Physics, National Institute of Technology, Tiruchirappalli 620015, Tamil Nadu, India;2. CSIR-Central Electrochemical Research Institute, Karaikudi 630006, Tamil Nadu, India;3. Faculty of Humanities and Natural Sciences, Presov University, Presov, Slovakia;1. L.V. Pysarzhevsky Institute of Physical Chemistry of National Academy of Sciences of Ukraine, Kyiv, Ukraine;2. NanoMedTech LLC, Kyiv, Ukraine;3. G.V. Kurdyumov Institute of Metal Physics of National Academy of Sciences of Ukraine, Kyiv, Ukraine;4. Semiconductor Physics, Technische Universität Chemnitz, Chemnitz, Germany;5. V.E. Lashkaryov Institute of Semiconductor Physics of National Academy of Sciences of Ukraine, Kyiv, Ukraine;1. Internal Combustion Engines Laboratory, Department of Mechanical Engineering, IIT Madras, 600036 Tamilnadu, India;2. School of Mechanical Engineering, VIT-AP University, Amaravati 522237, Andhra Pradesh, India;1. School of Chemical Engineering & Technology, Harbin Institute of Technology, Harbin 150006, China;2. School of Marine Science and Technology, Harbin Institute of Technology, Weihai 264209, China;3. Marine Antifouling Engineering Technology Center of Shandong Province, Harbin Institute of Technology, Weihai 264209, China |
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| Abstract: | Tough polycarbonate (PC)/multiwalled carbon nanotube (MWCNT) nanocomposites (NCs) modified by a maleated styrene/ethylene–butylene/styrene (mSEBS) rubber were obtained in the melt state using a highly dispersed PC/MWCNT master-batch. An electrical percolation threshold (pc) occurred at only 0.5% MWCNT showing a power law critical exponent of 2.60, which is characteristic of a three-dimensional percolated structure. The presence of MWCNT decreased the rubber particle size due to an increase in matrix viscosity. In addition to high electrical conductivity, the elastic modulus of the NCs was similar to that of the PC, as a result of the combined presence of 0.5% MWCNT and 4% mSEBS; the mSEBS was also able to provide (i) considerable impact strength, (ii) clear ductile behavior and (iii) increased resistance against crack propagation. |
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| Keywords: | A. Polymer-matrix composites (PMCs) B. Electrical properties B. Impact behavior D. Mechanical testing |
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