Cellulose nanofibers (CNF) create a physical barrier preventing contact with corrosive substances and improving corrosion prevention. Oil palm fronds (OPF), the primary source of underused biomass waste from plantations, were processed into CNF. The OPF-CNF, mixed with hydroxyethyl cellulose as the matrix, forms a nanocomposite. Corrosion analysis using electrochemical methods demonstrated that copper coated with cellulose-rich nanocomposite containing 5 % CNF had a significantly decreased corrosion rate with an efficiency of 97.92 %. This CNF-based coating, combining barrier and passivation mechanisms, enhances performance, providing a competitive, eco-friendly alternative to conventional coatings.
The aim of this study was to investigate the potential of Waru bark fiber (WBF) as a reinforcement material for composite. To achieve this aim, WBF was extracted using a conventional process, ensuring purity, and then characterized for physical, mechanical, chemical, and thermal properties. Microstructure analysis was performed using Scanning Electron Microscope (SEM) to show uniform and exceptional fiber sheets with naturally woven fiber shapes. A high value of 152.77 MPa was found for fiber's tensile strength in the mechanical test. Following this discussion, fiber's crystallinity index (CI) was 56.54 %, and X-Ray Fluorescence (XRF) test showed a composition ratio of O = 48.63 % and C = 36.74 %. Thermal analysis using Differential Thermal Analysis-Thermogravimetric Analysis (DTA-TGA) showed that the cellulose fiber could withstand temperatures stability up to 312 °C. Finally, this study offered a sustainable solution to reduce the reliance on synthetic fiber in various industries by suggesting the use of reliable WBF as reinforcement.