ANALYZING THE INTERFACIAL PROPERTIES OF NATURAL FIBER COMPOSITES

<p>In response to growing environmental concerns and the urgent demand for sustainable development, the composite materials industry is increasingly challenged to balance high performance with environmental responsibility. Conventional composites, typically composed of synthetic fibers and petroleum-based resins, offer outstanding mechanical properties but are associated with significant ecological drawbacks due to their non-biodegradable nature and energy-intensive production. This has led to increased interest in the development of sustainable composites that minimize environmental impact without compromising functionality. This study presents the development of eco-friendly composites reinforced with natural bast fibers—specifically ramie and jute—through a comprehensive program of materials processing and characterization. To enhance the fiber–matrix interfacial properties, the surfaces of the natural fibers were modified by in situ growth of inorganic metal oxides such as zinc oxide (ZnO) and hydroxyapatite (HAP) via a hydrothermal chemical synthesis process. These modifications aimed to improve interfacial bonding and load transfer between the fiber and polymer matrix. Composite samples were fabricated using EcoPoxy, a bio-based resin, with both untreated and nanoparticle-treated fibers. The interfacial mechanical performance was evaluated using techniques such as nanoindentation, tensile testing, and scanning electron microscopy (SEM). Results demonstrate that nanoparticle surface functionalization significantly improves interfacial adhesion, thereby enhancing the overall mechanical performance of the composites.</p>

Name thesis:degree_name

Master of Science in Aerospace Engineering

Level thesis:degree_level

Thesis - Open Access

Discipline thesis:degree_discipline

Aerospace Engineering

Year

2025

Author dc:creator

• Arram, Rahul Kumar

• NATURAL FIBER
• JUTE FIBER
• RAMIE FIBER
• ZINC OXIDE
• HYDROXYAPITITE
• COMPOSITES
• NANOINDENTATION
• TENSILE TEST
• SCANNING ELECTRON MICROSCOPY
• SCANNING PROBE MICROSCOPY
• HYDROTHERMAL SYNTHESIS
• ECOPOXY
• Aerospace Engineering
• Engineering
• Structures and Materials

Repository record dc:identifier

https://commons.erau.edu/edt/917

OAI identifier oai:identifier

oai:commons.erau.edu:edt-1960