Rubber Technology Centre, Indian Institute of Technology, Kharagpur, 721302, India.
Nanoscale Res Lett. 2008 Oct 25;3(12):508-15. doi: 10.1007/s11671-008-9188-3.
Carbon nanofiber (CNF) is one of the stiffest materials produced commercially, having excellent mechanical, electrical, and thermal properties. The reinforcement of rubbery matrices by CNFs was studied in the case of ethylene vinyl acetate (EVA). The tensile strength was greatly (61%) increased, even for very low fiber content (i.e., 1.0 wt.%). The surface modification of the fiber by high energy electron beam and gamma irradiation led to better dispersion in the rubber matrix. This in turn gave rise to further improvements in mechanical and dynamic mechanical properties of EVA. The thermal conductivity also exhibited improvements from that of the neat elastomer, although thermal stability of the nanocomposites was not significantly altered by the functionalization of CNFs. Various results were well supported by the morphological analysis of the nanocomposites.
碳纤维（CNF）是商业上生产的最硬的材料之一，具有优异的机械、电气和热性能。在乙烯-醋酸乙烯酯（EVA）的情况下，研究了 CNF 对橡胶基质的增强作用。即使纤维含量非常低（即 1.0wt.%），拉伸强度也大大提高（61%）。纤维的表面通过高能电子束和伽马射线处理进行改性，从而在橡胶基质中得到更好的分散。这反过来又进一步提高了 EVA 的机械和动态机械性能。复合材料的导热系数也有所提高，尽管 CNF 的功能化并没有显著改变纳米复合材料的热稳定性。各种结果都得到了纳米复合材料形态分析的很好支持。
