Nanomechanical and Tribological Properties of Carbon Nanotube/Polyvinyl Butyral Composites

作者：Charitidis Constantinos A^*; Koumoulos Elias P; Giorcelli Mauro; Musso Simone; Jagadale Pravin; Tagliaferro Alberto

来源：Polymer Composites, 2013, 34(11): 1950-1960.

DOI：10.1002/pc.22602

The surface and subsurface mechanical and tribological properties of multiwall carbon nanotube (MWCNTs)/polyvinyl butyral (PVB) composites have been studied. Hardness and elastic modulus were obtained from nanoindentation, whereas the coefficient of friction of the composites was obtained using a nanoscratch method. The results show a clear impact of the percentage of CNTs filling on the monitored properties. Considerable improvement in the scratch resistance is obtained by the addition of CNTs and a maximum increase in nanomechanical properties is found at intermediate levels of CNTs filling. Creep studies revealed that a higher loading rate results in a greater primary creep deformation and leads to an increase of the total creep deformation, whereas the addition of MWCNTs affects the elastic recovery of the PVB matrix. POLYM. COMPOS., 34:1950-1959, 2013.

• 出版日期2013-11