| Autor: |
Sangeeta Sankhla, Santoshi Mohanta, Karthika K Namboothiri, Raghu Raja Pandiyan Kuppusamy, Swati Neogi |
| Jazyk: |
angličtina |
| Rok vydání: |
2021 |
| Předmět: |
|
| Zdroj: |
Carbohydrate Polymer Technologies and Applications, Vol 2, Iss , Pp 100124- (2021) |
| Druh dokumentu: |
article |
| ISSN: |
2666-8939 |
| DOI: |
10.1016/j.carpta.2021.100124 |
| Popis: |
In this work, the effect of cellulose nanocrystals (CNC) addition on the rheo-kinetic behavior and mechanical strength of the anhydride cured epoxy system is studied. The study is conducted under non-isothermal conditions at five different heating ramp rates, namely 1, 2, 5, 8, and 10℃/min. The effect of CNC concentration on the activation energy is also analyzed. The maximum activation energy is observed for 0.5% CNC modified resin with a value of 112.4 kJ/mol for 0.8 degree of conversion. Furthermore, the non-isothermal Arrhenius method is used to predict the rheo-kinetic model that correlates the degree of cure and complex viscosity of the CNC modified resin system. The predicted viscosity model agrees with the experimental data to a great extent with Absolute Average Relative Deviation values in the range of 0.78-0.998. Additionally, the flexural strength of nano-composites is evaluated and found to be increased from 23.6 MPa to 38.2 MPa for neat resin and 2% CNC modified resin sample, respectively. The developed rheo-kinetic modeling will be helpful for efficient and high strength nano-composite product formulation. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
|
