Chemical and Thermal Degradability of Nano-Al2O3 and MWCNT-Enhanced Jojoba and Castor Oils for Sustainable Machining Application

Authors

• Basma Abdelmoniem, Department of Mechanical Engineering, Faculty of Engineering, Capital University (Formerly Helwan University), Helwan, Cairo, Egypt.Follow
• Abdelhay M. Abdelhay, Department of Mechanical Engineering, Faculty of Engineering, Capital University (Formerly Helwan University), Helwan, Cairo, Egypt.
• Nariman E. Elbaly, Department of Mechanical Engineering, Faculty of Engineering, Capital University (Formerly Helwan University), Helwan, Cairo, Egypt
• Mohamed O. Helmy, Department of Mechanical Engineering, Benha Faculty of Engineering, Benha University, Benha 13518, Egypt
• Azza BarakatFollow

Corresponding Author

Basma Abdelmoniem

Document Type

Original Study

Keywords

Nano-Vegetable Oils, FTIR, TGA, Boiling Point, Thermal Stability

Abstract

In this work, castor and jojoba oils were used to prepare nanofluids. Medium molecular weight carbon nanotubes (MWCNTs) and 0.1 wt% Al₂O₃ were used in two process steps. Sodium dodecyl sulfate (SDS) was used as a surfactant. Single and hybrid nanoparticle systems were developed to improve homogeneity. The chemical stability and interfacial interactions of the prepared nanofluids were investigated using Fourier transform infrared spectroscopy (FT-IR). The results showed that neither alumina (Al₂O₃) nor multi-walled carbon nanotubes (MWCNTs) affected the chemical structure of the lubricant. To ensure the thermal stability of the modified oils at temperatures up to 500°C, thermogravimetric analysis (TGA) was performed. Most of the modified systems showed improved thermal stability during boiling point testing. This reveals that the modification of the green oils is a promising approach to various industrial and technological applications

How to Cite This Article

Abdelmoniem, Basma; Abdelhay, Abdelhay M.; Elbaly, Nariman E.; Helmy, Mohamed O.; and Barakat, Azza (2026) "Chemical and Thermal Degradability of Nano-Al2O3 and MWCNT-Enhanced Jojoba and Castor Oils for Sustainable Machining Application," Trends in advanced sciences and technology: Vol. 3, Article 9.
DOI: 10.62537/2974-444X.1055
Available at: https://tast.researchcommons.org/journal/vol3/iss1/9