Preparation and mechanical properties of rubber composites reinforced with carbon nanohorns.
Nitrile butadiene rubber (NBR) composites with single-wall carbon nanohorns (SWNHs, or simply NHs), hole-opened NHs (h-NHs), and carbon black (CB), the most commonly used nanocarbon rubber filler, were prepared, and their mechanical properties were compared. The NBR composites with h-NHs (NBR/h-NH) showed higher tensile strength than those with NHs (NBR/NH), and the tensile strength of NBR/h-NH or NBR/NH was much greater than those of the NBR composites with CB (NBR/CB). At 5 parts per hundred of rubber (phr), the tensile stresses at break of NBR/h-NH was about 1.8 times larger than those of NBR/CB, and the strain at the break, 1.2 times larger. Similarly, at 20 phr, both the tensile strength and strain at the break of NBR/h-NH were 1.4 times larger than those of NBR/CB. NBR/NH showed the highest hardness while having the smallest specific gravity. The present results indicate that NHs and h-NHs have much superior reinforcement effects to CB for NBR rubber matrix.
Isshiki
Tetsuya
T
Faculty of Textile Science and Technology, Shinshu University, 3-15-1 Ueda 386-8567, Japan.
Hashimoto
Mikiko
M
Morii
Masato
M
Ota
Yuki
Y
Kaneda
Kazuo
K
Takahashi
Hidetaka
H
Yudasaka
Masako
M
Iijima
Sumio
S
Okino
Fujio
F