TY - JOUR
T1 - Micromechanical characterization of single-walled carbon nanotube reinforced ethylidene norbornene nanocomposites for self-healing applications
AU - Aïssa, B.
AU - Haddad, E.
AU - Jamroz, W.
AU - Hassani, S.
AU - Farahani, R. D.
AU - Merle, P. G.
AU - Therriault, D.
PY - 2012/10
Y1 - 2012/10
N2 - We report on the fabrication of self-healing nanocomposite materials, consisting of single-walled carbon nanotube (SWCNT) reinforced 5-ethylidene-2-norbornene (5E2N) healing agent - reacted with ruthenium Grubbs catalyst - by means of ultrasonication, followed by a three-roll mixing mill process. The kinetics of the 5E2N ring opening metathesis polymerization (ROMP) was studied as a function of the reaction temperature and the SWCNT loads. Our results demonstrated that the ROMP reaction was still effective in a large temperature domain (1545°C), occurring at very short time scales (less than 1min at 40°C). On the other hand, the micro-indentation analysis performed on the SWCNT/5E2N nanocomposite material after its ROMP polymerization showed a clear increase in both the hardness and the Young modulus - up to nine times higher than that of the virgin polymer - when SWCNT loads range only from 0.1 to 2wt%. The approach demonstrated here opens new prospects for using carbon nanotube and healing agent nanocomposite materials for self-repair functionality, especially in a space environment.
AB - We report on the fabrication of self-healing nanocomposite materials, consisting of single-walled carbon nanotube (SWCNT) reinforced 5-ethylidene-2-norbornene (5E2N) healing agent - reacted with ruthenium Grubbs catalyst - by means of ultrasonication, followed by a three-roll mixing mill process. The kinetics of the 5E2N ring opening metathesis polymerization (ROMP) was studied as a function of the reaction temperature and the SWCNT loads. Our results demonstrated that the ROMP reaction was still effective in a large temperature domain (1545°C), occurring at very short time scales (less than 1min at 40°C). On the other hand, the micro-indentation analysis performed on the SWCNT/5E2N nanocomposite material after its ROMP polymerization showed a clear increase in both the hardness and the Young modulus - up to nine times higher than that of the virgin polymer - when SWCNT loads range only from 0.1 to 2wt%. The approach demonstrated here opens new prospects for using carbon nanotube and healing agent nanocomposite materials for self-repair functionality, especially in a space environment.
UR - http://www.scopus.com/inward/record.url?scp=84865956902&partnerID=8YFLogxK
U2 - 10.1088/0964-1726/21/10/105028
DO - 10.1088/0964-1726/21/10/105028
M3 - Article
AN - SCOPUS:84865956902
SN - 0964-1726
VL - 21
JO - Smart Materials and Structures
JF - Smart Materials and Structures
IS - 10
M1 - 105028
ER -