Recycling natural fibers is essential for advancing environmental sustainability, as it helps reduce waste, conserve resources, and minimize the ecological footprint of textile production. While fibers like cotton, wool, and linen are biodegradable, their disposal in landfills still contributes to pollution and the depletion of valuable materials. By recycling these fibers, we can extend their lifecycle, lessen reliance on virgin fiber production—which typically requires significant water, energy, and chemical inputs—and promote more sustainable industrial practices.

Moreover, recycling natural fibers aligns with the principles of a circular economy by encouraging responsible consumption and production, reducing greenhouse gas emissions, and limiting the accumulation of textile waste. In parallel, reinforcing polymer matrices with natural fibers is emerging as a promising approach to enhance both the environmental and economic sustainability of polymer-based products, while expanding their applicability in various engineering fields.

This study explores the fabrication of composite materials reinforced with rice husk, an agricultural byproduct. A comprehensive evaluation is provided, including scanning electron microscopy and tensile testing, alongside a statistical analysis of tensile data using the Weibull distribution. Utilizing rice husk in engineered composites not only extends the utility of this organic waste but also supports sustainability efforts and offers potential socio-economic advantages at the community level. The study presents several case examples involving both polymer and inorganic matrices, utilizing both traditional and additive manufacturing techniques.