Mechanical properties of carbon nanotube reinforced polyurethane matrix using computational method: a molecular dynamics study

被引：5

作者：

Pebdani, Mohammadreza Heidari ^{[1
]}

Sabetvand, Roozbeh ^{[2
]}

机构：

[1] Carleton Univ, Dept Mech & Aerosp Engn, Ottawa, ON, Canada

[2] Amirkabir Univ Technol, Fac Condensed Matter Phys, Dept Energy Engn & Phys, Tehran, Iran

来源：

PHYSICA SCRIPTA | 2022年 / 97卷 / 07期

关键词：

polyurethane; carbon nanotube; mechanical behavior; molecular dynamics; nanocomposite; pullout process; COMPOSITES; DISPERSION; MORPHOLOGY;

D O I：

10.1088/1402-4896/ac6cae

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The reinforcing nanostructures can be made up of nanoparticles, nanosheets or nanofibres such as carbon nanotubes (CNTs) and graphene nanosheets. To investigate the reinforce mechanism, the changes in mechanical behavior of CNT reinforced Polyurethane (PU) matrix with various chirality was studied using molecular dynamics (MD) method in current work. We used the DREIDING and Tersoff force-fields for simulation of the PU and CNT samples, respectively. To report the mechanical properties of pristine PU matrix and reinforced PU/CNT structure, some physical parameters such as interaction energy between polymer chains and nanotube atoms, ultimate strength, and Young's modulus are calculated. MD outputs indicated inserting CNT with zigzag edge into pristine matrix enlarged the Young's modulus by 17.10% and the ultimate strength by 25.69%. These results indicated the promising effect of CNT-based nanostructures on the mechanical properties of PU matrix.

引用

页数：12