TY - GEN
T1 - Effects of nanoparticles on fibre composites delamination
AU - Zeng, Ying
AU - Liu, Hong Yuan
AU - Mai, Yiu Wing
PY - 2010
Y1 - 2010
N2 - The effects of nanoparticles on mode I delamination behaviour of carbon fibre/epoxy composite were studied using double-cantilever-beam tests. Different kinds of nanoparticles were added to modify the epoxy matrix. The results obtained show that the presence of nanoparticles, either rigid silica nanoparticles or soft rubber nanoparticles, can improve the interlaminar toughness of the composites. When compared to the toughness results of nanoparticle modified epoxy as bulk materials (i.e., without carbon fibres) [1], the toughening effect of the nanoparticles, especially rubber nanoparticles, cannot be fully transferred to the fibre composites when the particle loading is high. Moreover, the composites with a hybridfiller matrix, that is, 6 wt% rubber nanoparticles and 6 wt% silica nanoparticles in epoxy resin, are not as tough as the composites with only 6 wt% rubber nanoparticles. Fibre bundle pullout tests were conducted to examine the effects of nanoparticles on the fibre/matrix interface. Typical load-displacement curves showing clear interface debonding and frictional sliding of the fibre bundle can be seen in all nano-rubber/epoxy samples and most of nano-silica/epoxy samples. In all the pullout tests of neat epoxy samples, the fibre bundles were always pulled out with serious matrix damage.
AB - The effects of nanoparticles on mode I delamination behaviour of carbon fibre/epoxy composite were studied using double-cantilever-beam tests. Different kinds of nanoparticles were added to modify the epoxy matrix. The results obtained show that the presence of nanoparticles, either rigid silica nanoparticles or soft rubber nanoparticles, can improve the interlaminar toughness of the composites. When compared to the toughness results of nanoparticle modified epoxy as bulk materials (i.e., without carbon fibres) [1], the toughening effect of the nanoparticles, especially rubber nanoparticles, cannot be fully transferred to the fibre composites when the particle loading is high. Moreover, the composites with a hybridfiller matrix, that is, 6 wt% rubber nanoparticles and 6 wt% silica nanoparticles in epoxy resin, are not as tough as the composites with only 6 wt% rubber nanoparticles. Fibre bundle pullout tests were conducted to examine the effects of nanoparticles on the fibre/matrix interface. Typical load-displacement curves showing clear interface debonding and frictional sliding of the fibre bundle can be seen in all nano-rubber/epoxy samples and most of nano-silica/epoxy samples. In all the pullout tests of neat epoxy samples, the fibre bundles were always pulled out with serious matrix damage.
KW - Carbon fibre composite
KW - Mode i delamination
KW - Pullout test
KW - Rubber nanoparticle
KW - Silica nanoparticle
UR - http://www.scopus.com/inward/record.url?scp=84905489581&partnerID=8YFLogxK
M3 - Conference article published in proceeding or book
AN - SCOPUS:84905489581
SN - 9781632660756
T3 - 7th Asian-Australasian Conference on Composite Materials 2010, ACCM 2010
SP - 427
EP - 430
BT - 7th Asian-Australasian Conference on Composite Materials 2010, ACCM 2010
PB - ACCM-7 Organizing Committee
T2 - 7th Asian-Australasian Conference on Composite Materials 2010, ACCM 2010
Y2 - 15 November 2010 through 18 November 2010
ER -