Alfalfa/Lucerne (Medicago sativa) as a Source of Functional Bioadditives for Elastomeric Natural Rubber Composites.

IF 4.7 3区工程技术 Q1 POLYMER SCIENCE Polymers Pub Date : 2024-12-09 DOI:10.3390/polym16233444

Justyna Miedzianowska-Masłowska, Marcin Masłowski, Krzysztof Strzelec

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Abstract

This study explores the impact of three bioadditives derived from Alfalfa-biomass, bio-ashes, and lyophilisates-on natural rubber composites, with a primary focus on the anti-aging properties of lyophilisates. Composite samples were prepared by incorporating these bioadditives into natural rubber and analyzed using various characterization techniques to evaluate mechanical, thermal, aging, and surface properties. The results highlight the promising anti-aging effects of lyophilisates, significantly enhancing the aging resistance of natural rubber. The aging factor was the closest to unity among all systems. Biomass and bio-ashes were also examined, offering insights into their influence on tensile strength, viscoelasticity, and surface wettability. The tensile strength values were almost 50% higher than those of the reference sample (8.5 MPa). The study provides a detailed understanding of the interactions between these bioadditives and natural rubber, showcasing their potential to enhance elastomer performance. These findings underscore the viability of Alfalfa-based bioadditives as sustainable options for improving rubber properties, with significant implications for industrial applications.

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本研究探讨了从紫花苜蓿中提取的三种生物添加剂（生物质、生物灰烬和冻干物）对天然橡胶复合材料的影响，重点关注冻干物的抗老化性能。将这些生物添加剂加入天然橡胶中制备了复合材料样品，并使用各种表征技术对其进行了分析，以评估其机械、热、老化和表面特性。结果表明，冻干物具有良好的抗老化效果，可显著增强天然橡胶的抗老化性。在所有体系中，老化系数最接近统一值。此外，还研究了生物质和生物灰烬，深入了解它们对拉伸强度、粘弹性和表面润湿性的影响。拉伸强度值比参考样品（8.5 兆帕）高出近 50%。研究详细了解了这些生物添加剂与天然橡胶之间的相互作用，展示了它们提高弹性体性能的潜力。这些发现强调了紫花苜蓿生物添加剂作为改善橡胶性能的可持续选择的可行性，对工业应用具有重要意义。

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来源期刊

Polymers POLYMER SCIENCE-

CiteScore

8.00

自引率

16.00%

发文量

4697

审稿时长

1.3 months

期刊介绍： Polymers (ISSN 2073-4360) is an international, open access journal of polymer science. It publishes research papers, short communications and review papers. Our aim is to encourage scientists to publish their experimental and theoretical results in as much detail as possible. Therefore, there is no restriction on the length of the papers. The full experimental details must be provided so that the results can be reproduced. Polymers provides an interdisciplinary forum for publishing papers which advance the fields of (i) polymerization methods, (ii) theory, simulation, and modeling, (iii) understanding of new physical phenomena, (iv) advances in characterization techniques, and (v) harnessing of self-assembly and biological strategies for producing complex multifunctional structures.