Multifunctional xGnP/LLDPE Nanocomposites Prepared by Solution Compounding Using Various Screw Rotating Systems

被引:77
作者
Kim, Sumin [1 ]
Do, Inhwan [2 ]
Drzal, Lawrence T. [2 ]
机构
[1] Soongsil Univ, Coll Engn, Dept Architecture, Seoul 156743, South Korea
[2] Michigan State Univ, Coll Engn, Ctr Composite Mat & Struct, E Lansing, MI 48824 USA
关键词
exfoliated graphite nanoplatelets (xGnP); LLDPE; nanocomposites; resistivity; EXFOLIATED GRAPHITE; MECHANICAL-PROPERTIES; CONDUCTIVITY; COMPOSITES; MORPHOLOGY; BEHAVIOR;
D O I
10.1002/mame.200800319
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
xGnP-Reinforced LLDPE nanocomposites have been prepared using co-, counter- and modified co-rotating screw systems. The highest tensile strength and modulus were shown in the case of composites made by counter-rotating screws. The percolation threshold of exfoliated graphite nanoplatelet/LLDPE nanocomposites was between 12 and 15 wt.-%. The change of crystallinity caused by exfoliated graphite nanoplatelet loading was monitored using DSC and XRD. It was found that solution mixing showed better dispersion of exfoliated graphite nanoplatelets than melt mixing, and counter-rotating screws produced better dispersion of the exfoliated graphite nanoplatelets than co- and modified co-rotating screws even though bubbling appeared during mixing in the barrel.
引用
收藏
页码:196 / 205
页数:10
相关论文
共 28 条
[11]   Effect of preparation conditions on the characteristics of exfoliated graphite [J].
Kang, FY ;
Zheng, YP ;
Wang, HN ;
Nishi, Y ;
Inagaki, M .
CARBON, 2002, 40 (09) :1575-1581
[12]   Thermo-mechanical properties of LLDPE/SiO2 nanocomposites [J].
Kontou, E ;
Niaounakis, M .
POLYMER, 2006, 47 (04) :1267-1280
[13]   Real-time observation of the expansion behavior of intercalated graphite flake [J].
Lee, S ;
Cho, D ;
Drzal, LT .
JOURNAL OF MATERIALS SCIENCE, 2005, 40 (01) :231-234
[14]   Percolation threshold of conducting polymer composites containing 3D randomly distributed graphite nanoplatelets [J].
Li, Jing ;
Kim, Jang-Kyo .
COMPOSITES SCIENCE AND TECHNOLOGY, 2007, 67 (10) :2114-2120
[15]   Morphology and properties of UV/ozone treated graphite nanoplatelet/epoxy nanocomposites [J].
Li, Jing ;
Sham, Man Lung ;
Kim, Jang-Kyo ;
Marom, Gad .
COMPOSITES SCIENCE AND TECHNOLOGY, 2007, 67 (02) :296-305
[16]  
Liu W., 2007, P SOC PLAST ENG AUT
[17]   Effect of oxidized paraffin wax on the thermal and mechanical properties of linear low-density polyethylene-layered silicate nanocomposites [J].
Luyt, A. S. ;
Geethamma, V. G. .
POLYMER TESTING, 2007, 26 (04) :461-470
[18]   Graphite nanoplatelet reinforcement of electrospun polyacrylonitrile nanofibers [J].
Mack, JJ ;
Viculis, LM ;
Ali, A ;
Luoh, R ;
Yang, GL ;
Hahn, HT ;
Ko, FK ;
Kaner, RB .
ADVANCED MATERIALS, 2005, 17 (01) :77-+
[19]  
Park H., 2007, P SOC PLAST ENG AUT
[20]   Structure and electrical properties of grafted polypropylene/graphite nanocomposites prepared by solution intercalation [J].
Shen, JW ;
Chen, XM ;
Huang, WY .
JOURNAL OF APPLIED POLYMER SCIENCE, 2003, 88 (07) :1864-1869