Dependence of mechanical performances of polymer/carbon nanotubes nanocomposites on percolation threshold

作者：Nikfar Nafiseh; Zare Yasser; Rhee Kyong Yop^*

来源：Physica B: Condensed Matter , 2018, 533: 69-75.

DOI：10.1016/j.physb.2018.01.008

• Polymer/CNT nanocomposites
• Percolation threshold
• Mechanical behavior

In this study, several models for the tensile modulus and strength of polymer/carbon nanotubes (CNT) nanocomposites (PCNT) are expressed as a function of percolation threshold. The roles of the CNT aspect ratio a and percolation threshold phi(p) in the mechanical properties of PCNT are plotted according to the original and developed models. Furthermore, the effects of phi(p) and various interfacial/interphase parameters on the PCNT tensile strength are presented through contour plots. The tensile modulus and strength of PCNT show a threshold at low phi(p) values, indicating the important effect of the percolation behavior on the mechanical properties. Poor mechanical performances are seen at high phi(p) values and different ranges of interfacial/interphase parameters. However, the lowest phi(p) values and the highest ranges of interfacial/interphase parameters result in the most desirable PCNT strength.

• 出版日期2018-3-15