DEVELOPMENT OF FIRE-RESISTANT BEHAVIOUR IN NATURAL RUBBER FOAM VULCANIZATES USING SUSTAINABLE MATERIALS
D. T. J. Jayawardhana1*, A. D. Weerakoon2, and S. G. J. Perera3
1,2,3Institute of Technology University of Moratuwa, Sri Lanka
Session: Technical Session A
Abstract
Fire safety is a critical consideration in foam-based applications, especially with the increasing demand for sustainable, non-toxic materials. This research explores the development of fire-resistant natural rubber foam by incorporating eco-friendly, sustainable materials. The study focuses on enhancing fire resistance while maintaining the foam's mechanical integrity and environmental compatibility. In preliminary experiments, varying concentrations of natural additives were integrated into natural rubber foam to assess their effect on fire resistance. Eggshell powder was identified as particularly effective, with optimised concentrations forming a protective tar layer that slows fire propagation. Further testing demonstrated that samples containing less than 20 parts per hundred rubber (pphr) of eggshell powder achieved optimal fire resistance, offering an effective barrier against ignition. In contrast, concentrations exceeding this threshold showed diminished efficacy due to material accumulation, highlighting the importance of optimal additive loading. This study’s findings offer a promising approach for producing safer, more sustainable foam materials, with applications across industries where fire risk is a concern. By replacing conventional flame retardants with bio-based alternatives, this research presents an innovative pathway for enhancing fire safety while supporting green manufacturing. The implications for product safety, environmental sustainability, and cost-effectiveness position this work as a valuable contribution to the advancement of fire-resistant materials.
Keywords: eco-friendly innovation, fire resistance, fire safety, natural rubber foam, sustainable material
DOI: 10.64752/YBGX4473