Abstract
Polymer-matrix composites (PMC) reinforced with nanofillers are in constant demand in various industrial applications. Among nano reinforcements, carbon nanotubes (CNT), show a unique combination of physical properties. Often, PMC/CNT composites perform under harsh operating and environmental conditions ranging from aggressive chemical attacks to high temperatures. Material characterization is critical for correct implementation in multifunctional systems. In this study, we have developed two Representative Volume Elements based on the formation of agglomeration above 2 wt% percentage of CNTs. Using finite element analysis (FEA) we studied the mechanical properties of the nanocomposites as a function of temperature. The viscoelastic properties of different percentages of nanofillers (i.e., 0.5, 1, 2, 4, 5 wt%) were derived. Experimental validation was performed with the samples containing the percentages of nanofillers. The samples were tested using Dynamic Mechanical Analysis (DMA) equipment employing the three-point bending method at a fixed frequency. The data shows that the nanofillers drastically influenced the storage, loss modulus and loss factor with a small addition of carbon nanotubes. The viscoelastic properties are presented from temperatures ranging from 40 ℃ to 120 ℃. Finally, a good agreement between the numerical and experimental approaches was found.
| Original language | English |
|---|---|
| Pages (from-to) | 607-614 |
| Number of pages | 8 |
| Journal | Materials Today: Proceedings |
| Volume | 57 |
| Issue number | 2 |
| Early online date | 11 Feb 2022 |
| DOIs | |
| Publication status | Published - 20 Apr 2022 |
| Event | 3rd International Conference on Aspects of Materials Science and Engineering - Panjab University, Chandigarh, India Duration: 5 Mar 2022 → 6 Mar 2022 https://icamse2022.weebly.com/ |
Keywords
- Polymer-matrix composites (PMCs)
- Dynamic mechanical thermal analysis
- Micromechanics
- Finite element analysis
- Thermomechanical modelling
- Carbon nanotubes