Isshiki Tetsuya, Hashimoto Mikiko, Morii Masato, Ota Yuki, Kaneda Kazuo, Takahashi Hidetaka, Yudasaka Masako, Iijima Sumio, Okino Fujio
Faculty of Textile Science and Technology, Shinshu University, 3-15-1 Ueda 386-8567, Japan.
J Nanosci Nanotechnol. 2010 Jun;10(6):3810-4. doi: 10.1166/jnn.2010.2012.
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.
制备了含有单壁碳纳米角（SWNHs，或简称为NHs）、开孔NHs（h-NHs）以及炭黑（CB，最常用的纳米碳橡胶填料）的丁腈橡胶（NBR）复合材料，并对它们的力学性能进行了比较。含有h-NHs的NBR复合材料（NBR/h-NH）的拉伸强度高于含有NHs的NBR复合材料（NBR/NH），并且NBR/h-NH或NBR/NH的拉伸强度远高于含有CB的NBR复合材料（NBR/CB）。在每100份橡胶中添加5份（phr）时，NBR/h-NH的断裂拉伸应力约为NBR/CB的1.8倍，断裂应变则为1.2倍。同样，在20 phr时，NBR/h-NH的拉伸强度和断裂应变均为NBR/CB的1.4倍。NBR/NH的硬度最高，而比重最小。目前的结果表明，对于NBR橡胶基体而言，NHs和h-NHs的增强效果比CB要好得多。
