Sustainable valorization of Alpinia galanga pseudostem fibers for characterization and materials engineering applications

Scientific Reports, Journal Year: 2025, Volume and Issue: 15(1)

Published: March 26, 2025

The growing emphasis on sustainability has spurred interest in natural fibers as renewable and biodegradable alternatives to synthetic materials. This study explores the underutilized pseudostem of Alpinia galanga (A. galanga), a perennial herb Zingiberaceae family, widely cultivated for its rhizomes traditional medicine culinary practices. Despite economic ethnobotanical significance, pseudostems are often discarded agricultural waste, contributing environmental challenges. research investigates structural, chemical, mechanical properties A. fibers, revealing their high cellulose lignin content lightweight nature making them viable composite applications. To overcome inherent limitations such moisture limited performance, underwent alkaline permanganate chemical treatments. Advanced characterization techniques, including Fourier Transform Infrared Spectroscopy (FTIR, Thermogravimetric Analysis (TGA), X-ray Diffraction (XRD), tensile strength testing, were employed evaluate effects these treatments thermal stability, crystallinity, performance. Results demonstrated significant enhancements strength, resistance, structural integrity, underscoring fibers' potential eco-friendly reinforcement agents pioneering not only provides first comprehensive but also offers sustainable solution waste management, advancing development renewable, high-performance materials promoting circular economy

Language: Английский

Brake pads performance analysis: Influence of polydimethylsiloxane (PDMS) viscosity on tribological efficiency

Proceedings of the Institution of Mechanical Engineers Part D Journal of Automobile Engineering, Journal Year: 2024, Volume and Issue: unknown

Published: Nov. 21, 2024

Friction materials are crucial in engineering, particularly the automotive and industrial sectors where they extensively used brake systems. Lubricants essential these pad because provide friction stability reduce wear, especially at high temperatures. Polydimethylsiloxane (PDMS), known for its thermal low volatility, is a lubricant pads. However, effect of PDMS viscosity on tribological behaviour pads their overall braking effectiveness not well understood. This study examines properties eco-friendly reinforced with benzoyl-treated Pseudoxytenanthera stocksii (P. stocksii) bamboo rhizomes. Brake were fabricated varying viscosities subjected to detailed physical, chemical, mechanical, testing. Tribological tests conducted using CHASE tribometer under controlled conditions, following SAE J661a standards. The results reveal significant relationship between Specifically, low-viscosity emerged as highly effective additive, demonstrating superior performance compared higher-viscosity variants. Conversely, improved lubrication, leading lower coefficient reduced wear rates. research underscores importance PDMS, form, enhancing composites formulations.

Language: Английский