naa a22 4500 51082238X CHVBK 20180411083539.0 cr unu---uuuuu 180411e20130601xx s 000 0 eng 10.1007/s12541-013-0146-3 doi (NATIONALLICENCE)springer-10.1007/s12541-013-0146-3 Soundproofing ability and mechanical properties of polypropylene/exfoliated graphite nanoplatelet/carbon nanotube (PP/xGnP/CNT) composite [Elektronische Daten] [Myung-Sub Kim, Jun Yan, Kyung-Min Kang, Kyung-Hoon Joo, Yeon-June Kang, Sung-Hoon Ahn] Exfoliated graphite nanoplatelets (xGnPs) are platelet-like graphite nanocrystals with multi-graphene layers. They are promising materials for use as nanofillers in polymer composites due to their high conductivity, unique graphitized plane structure, and low manufacturing cost. Mixed polypropylene (PP)/xGnPs/carbon nanotube (CNT) composites were fabricated by a solution blending method. The soundproofing characteristics, mechanical properties, and physical morphologies of the composites were investigated at different filler loads with various nanomaterials. The tensile strength of the pure PP is 26.4 MPa. The PP/0.3 wt% xGnPs/0.5 wt% CNT composite had a tensile strength of 34.2 MPa, an increase of 29% relative to that of PP. Compared to PP, the composite material blocked an additional 3 dB of sound at frequencies between 520 Hz and 640 Hz. TEM images of the PP/xGnP/CNT composites showed that the CNTs were homogeneously dispersed and connected to the xGnP sheets in the PP matrix. The xGnP and CNT nanofillers formed 3D hybrid architectures that afforded remarkable improvements in mechanical and soundproofing properties. Korean Society for Precision Engineering and Springer-Verlag Berlin Heidelberg, 2013 Soundproofing nationallicence Impedance tube nationallicence Carbon nanotube nationallicence Exfoliated graphite nanoplatelet nationallicence Nano composite nationallicence Kim Myung-Sub School of Mechanical & Aerospace Engineering, Seoul National University, 151-742, Seoul, Korea aut Yan Jun School of Mechanical & Aerospace Engineering, Seoul National University, 151-742, Seoul, Korea aut Kang Kyung-Min School of Mechanical & Aerospace Engineering, Seoul National University, 151-742, Seoul, Korea aut Joo Kyung-Hoon School of Mechanical & Aerospace Engineering, Seoul National University, 151-742, Seoul, Korea aut Kang Yeon-June School of Mechanical & Aerospace Engineering, Seoul National University, 151-742, Seoul, Korea aut Ahn Sung-Hoon School of Mechanical & Aerospace Engineering, Seoul National University, 151-742, Seoul, Korea aut International Journal of Precision Engineering and Manufacturing Korean Society for Precision Engineering 14/6(2013-06-01), 1087-1092 2234-7593 14:6<1087 2013 14 12541 https://doi.org/10.1007/s12541-013-0146-3 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s12541-013-0146-3 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Kim Myung-Sub School of Mechanical & Aerospace Engineering, Seoul National University, 151-742, Seoul, Korea aut NATIONALLICENCE 700 1- Yan Jun School of Mechanical & Aerospace Engineering, Seoul National University, 151-742, Seoul, Korea aut NATIONALLICENCE 700 1- Kang Kyung-Min School of Mechanical & Aerospace Engineering, Seoul National University, 151-742, Seoul, Korea aut NATIONALLICENCE 700 1- Joo Kyung-Hoon School of Mechanical & Aerospace Engineering, Seoul National University, 151-742, Seoul, Korea aut NATIONALLICENCE 700 1- Kang Yeon-June School of Mechanical & Aerospace Engineering, Seoul National University, 151-742, Seoul, Korea aut NATIONALLICENCE 700 1- Ahn Sung-Hoon School of Mechanical & Aerospace Engineering, Seoul National University, 151-742, Seoul, Korea aut NATIONALLICENCE 773 0- International Journal of Precision Engineering and Manufacturing Korean Society for Precision Engineering 14/6(2013-06-01), 1087-1092 2234-7593 14:6<1087 2013 14 12541 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer