Miedzianowska-Masłowska Justyna, Kaczmarek Kalina Joanna, Masłowski Marcin
Institute of Polymer and Dye Technology, Lodz University of Technology, Stefanowskiego 16, 90-537 Lodz, Poland.
Polymers (Basel). 2025 Aug 29;17(17):2351. doi: 10.3390/polym17172351.
Modern trends in advanced material design increasingly emphasize sustainability and the use of naturally derived resources. One promising approach involves replacing synthetic additives with natural compounds that exhibit stabilizing properties. The aim of this study was to evaluate the effects of selected natural auxiliary substances-thymol (2-isopropyl-5-methylphenol), quercetin (3,3,4,5,7-pentahydroxyflavone) and caffeic acid (3-(3,4-dihydroxyphenyl)prop-2-enoic acid)-on the properties of elastomeric composites based on natural rubber. Biochar was used as the filler in the composites, serving as an eco-friendly alternative to conventional carbon black. The evaluation included measurements of crosslink density, hardness, mechanical properties and microstructural analysis of the resulting materials. The samples were also subjected to accelerated aging under thermo-oxidative conditions and UV radiation to assess their resistance to degradation. For comparison, the commonly used synthetic antioxidant BHT (2,6-di-tert-butyl-4-methylphenol) was also analyzed. The results enabled the assessment of the potential of natural additives as environmentally friendly stabilizers in elastomeric systems, with respect to their effectiveness and impact on material durability.
先进材料设计的现代趋势越来越强调可持续性以及天然衍生资源的使用。一种有前景的方法是用具有稳定性能的天然化合物替代合成添加剂。本研究的目的是评估选定的天然辅助物质——百里香酚（2-异丙基-5-甲基苯酚）、槲皮素（3,3,4,5,7-五羟基黄酮）和咖啡酸（3-(3,4-二羟基苯基)丙酸）——对基于天然橡胶的弹性体复合材料性能的影响。生物炭用作复合材料中的填料，作为传统炭黑的环保替代品。评估包括对所得材料的交联密度、硬度、机械性能进行测量以及微观结构分析。样品还在热氧化条件和紫外线辐射下进行加速老化，以评估其抗降解性。为作比较，还分析了常用的合成抗氧化剂BHT（2,6-二叔丁基-4-甲基苯酚）。结果能够评估天然添加剂作为弹性体系统中环境友好型稳定剂的潜力，包括其有效性以及对材料耐久性的影响。
