Bio ethylene propylene diene monomer (EPDM) produced with sugarcane-derived ethylene is an eco-friendly alternative material that can perform similarly to an oil-based synthetic rubber while reducing dependence on fossil resources. In this study, bio-EPDM/tungsten oxide nanocomposite was prepared to improve thermal insulation properties of bio-EPDM foam for application in highly functional eco-friendly diving wetsuits. The synthesized tungsten bronze nanorods (TBNRs) were doped with sodium and added to the bio-EPDM compound, then foam was generated by molding at 155 °C under a high-pressure. After foam molding, the effects of TBNRs on the sea water resistance as well as the thermal and mechanical properties of bio-EPDM foam were investigated. As a result, TBNRs remarkably improved the softness and photothermal properties of bio-EPDM foam without a significant reduction of their mechanical properties. Especially, the excellent dimensional stability of the bio-EPDM foam with TBNRs under the sea water circumstance highlights its superiority as a material for marine sports. Overall results indicate that the bio-EPDM foam material containing TBNRs at the optimum ratio can be fully utilized for the development of eco-friendly and high-performance wetsuit materials with excellent elasticity, flexibility, and thermal insulation properties.

中文翻译：

---

Bio-EPDM /氧化钨纳米复合泡沫材料，具有更好的蓄热性和耐海水性

用甘蔗衍生的乙烯生产的生物乙烯丙烯二烯单体（EPDM）是一种环保替代材料，其性能与油基合成橡胶相似，同时减少了对化石资源的依赖。在这项研究中，制备了生物-EPDM /氧化钨纳米复合材料，以改善生物-EPDM泡沫的绝热性能，以用于功能性环保型潜水潜水衣。将合成的钨青铜纳米棒（TBNR）掺入钠，然后添加到生物EPDM化合物中，然后在155°C的高压下模压产生泡沫。泡沫成型后，研究了TBNRs对耐海水性以及生物EPDM泡沫的热和机械性能的影响。结果是，TBNRs显着改善了生物EPDM泡沫的柔软性和光热性能，而没有显着降低其机械性能。尤其是在海水环境下，具有TBNR的bio-EPDM泡沫具有出色的尺寸稳定性，凸显了其作为海上运动材料的优越性。总体结果表明，以最佳比例包含TBNR的生物EPDM泡沫材料可充分用于开发具有出色弹性，柔韧性和绝热性能的环保型高性能潜水服材料。