Ares-Elejoste Patricia, Seoane-Rivero Rubén, Gandarias Inaki, Ballestero Jesus, Alonso-Amondarain Ane Libe
GAIKER Technology Centre, Basque Research and Technology Alliance (BRTA), Parque Tecnológico de Bizkaia, Edificio 202, 48170 Zamudio, Spain.
Chemical and Environmental Engineering Department, University of the Basque Country (UPV/EHU), Alameda Urquijo s/n, 48013 Bilbao, Spain.
Polymers (Basel). 2025 Jul 22;17(15):2001. doi: 10.3390/polym17152001.
The composite materials industry is increasingly seeking sustainable alternatives to mitigate the environmental impact of end-of-life materials. As a result, many sectors are transitioning toward bio-based or partially bio-based matrices (e.g., epoxy resins) to preserve material properties while improving sustainability. The transportation sector, in particular, demands materials that meet stringent mechanical and fire resistance standards. In this study, various epoxy systems with bio-based and/or recyclable content were investigated, along with renewable additives designed to enhance fire resistance through their functional groups and chemical structure. The research focused on developing formulations compatible with Sheet Moulding Compound (SMC) technology, which is widely used in transportation applications. Through extensive testing, materials with high bio-based content were successfully developed, exhibiting competitive mechanical properties and compliance with key fire safety requirements of the railway sector, as per the EN 45545-2 standard.
复合材料行业越来越多地寻求可持续替代方案，以减轻报废材料对环境的影响。因此，许多行业正在转向生物基或部分生物基基体（如环氧树脂），以在提高可持续性的同时保持材料性能。特别是运输部门，需要符合严格机械和防火标准的材料。在本研究中，对具有生物基和/或可回收成分的各种环氧体系以及旨在通过其官能团和化学结构提高防火性能的可再生添加剂进行了研究。该研究重点是开发与广泛应用于运输领域的片状模塑料（SMC）技术兼容的配方。通过大量测试，成功开发出了具有高生物基含量的材料，这些材料具有具有竞争力的机械性能，并符合EN 45545-2标准规定的铁路部门关键消防安全要求。
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