Holanda Francisco Sandro Rodrigues, Vidal Santos Luiz Diego, Melo Jeangela Carla Rodrigues, Pedrotti Alceu, Sussuchi Eliana Midori, Griza Sandro, Araújo Filho Renisson Neponuceno de, Nascimento Brenno Lima
Department of Agronomy Engineering Rosa Elze, Universidade Federal de Sergipe-UFS, São Cristóvão 49100-000, Sergipe, Brasil.
Postgraduate Study in in Territorial Planning, Department of Human Sciences and Philosophy, Universidade Estadual de Feira de Santana - UEFS, Avenida Transnordestina, Novo Horizonte, Feira de Santana 44036-900, Bahia, Brazil.
ACS Omega. 2024 Dec 16;9(52):51040-51051. doi: 10.1021/acsomega.4c05602. eCollection 2024 Dec 31.
The conservation of soil, a finite natural resource, demands effective measures. Within this context, the instability of soil masses on steep slopes poses significant risks to human life and environmental infrastructure, highlighting the need for developing erosion control strategies rooted in soil bioengineering principles. The objective of this study was to investigate the mechanical properties of fibers subjected to biodegradation and treated with sodium hydroxide (NaOH) for geotextile manufacturing. Experimental slopes were employed to mimic natural environmental degradation conditions. The fibers underwent treatment with alkaline NaOH solutions at concentrations of 3, 6, and 9% and were exposed for 180 days. Samples were collected every 30 days to evaluate the degradation process and performance under these conditions. These fibers exhibited resilience against field degradation over a period exceeding 180 days, demonstrating sustained effectiveness. Despite an initial reduction in strength compared to untreated control fibers, the treated fibers displayed enduring stability throughout the experimentation. This suggests that 6% NaOH concentration may yield higher tensile strength, thus positioning it as the optimal choice for the production of biodegradable geotextiles derived from fibers.
土壤作为一种有限的自然资源，其保护需要采取有效措施。在此背景下，陡坡上土壤团块的不稳定性对人类生命和环境基础设施构成了重大风险，这凸显了制定基于土壤生物工程原理的侵蚀控制策略的必要性。本研究的目的是研究用于制造土工织物的、经过生物降解和氢氧化钠（NaOH）处理的纤维的力学性能。采用实验斜坡来模拟自然环境降解条件。将纤维用浓度为3%、6%和9%的碱性NaOH溶液处理，并暴露180天。每30天收集一次样品，以评估这些条件下的降解过程和性能。这些纤维在超过180天的时间里表现出对现场降解的弹性，证明了持续的有效性。尽管与未处理的对照纤维相比，处理后的纤维强度最初有所降低，但在整个实验过程中，处理后的纤维显示出持久的稳定性。这表明6%的NaOH浓度可能产生更高的拉伸强度，因此将其定位为生产源自该纤维的可生物降解土工织物的最佳选择。
