TY - JOUR
T1 - Probing multi-walled nanotube/poly(methyl methacrylate) composites with ionizing radiation
AU - Tatro, S. R.
AU - Clayton, L. M.
AU - O'Rourke Muisener, P. A.
AU - Rao, A. M.
AU - Harmon, J. P.
PY - 2004/3
Y1 - 2004/3
N2 - Poly(methyl methacrylate) (PMMA) and multi-walled nanotube (MWNT)/PMMA composites were irradiated in air. The constant dose rate was 985rad/min at a dose of 5.7Mrad using a Cesium-137 source. The samples were then analyzed by dielectric analysis (DEA), dynamic mechanical analysis (DMA), differential scanning calorimetry (DSC), and Vickers microhardness. The MWNT/PMMA composites were found to show increased radiation hardness with respect to the glass transition temperature and mechanical properties. The dielectric properties were changed more significantly for the composites than for the neat PMMA. In addition, initial aging studies were performed on the irradiated samples after 3 months via DMA. The results indicate that multi-walled nanotubes may enhance radiation hardness of mechanical properties in PMMA.
AB - Poly(methyl methacrylate) (PMMA) and multi-walled nanotube (MWNT)/PMMA composites were irradiated in air. The constant dose rate was 985rad/min at a dose of 5.7Mrad using a Cesium-137 source. The samples were then analyzed by dielectric analysis (DEA), dynamic mechanical analysis (DMA), differential scanning calorimetry (DSC), and Vickers microhardness. The MWNT/PMMA composites were found to show increased radiation hardness with respect to the glass transition temperature and mechanical properties. The dielectric properties were changed more significantly for the composites than for the neat PMMA. In addition, initial aging studies were performed on the irradiated samples after 3 months via DMA. The results indicate that multi-walled nanotubes may enhance radiation hardness of mechanical properties in PMMA.
KW - DEA
KW - Ionizing radiation
KW - Multi-walled nanotubes
UR - http://www.scopus.com/inward/record.url?scp=1242328721&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=1242328721&partnerID=8YFLogxK
U2 - 10.1016/j.polymer.2004.01.012
DO - 10.1016/j.polymer.2004.01.012
M3 - Article
AN - SCOPUS:1242328721
SN - 0032-3861
VL - 45
SP - 1971
EP - 1979
JO - Polymer
JF - Polymer
IS - 6
ER -