Recently, the growing health awareness of society on the utilization of fabrics has led to an increasing demand for natural-based antibacterial textiles. Lignin, a generous polyphenol compound in nature, is capable of preventing bacterial growth; in particular, it dwells bacteria closely together on human skin, such as Staphylococcus epidermidis, Bacillus subtilis, Propionibacterium acnes, and Staphylococcus aureus. However, the antibacterial properties of lignin are limited by factors such as the lignin concentration, source, and type of bacteria. This study aimed to evaluate the potency of lignin as an antibacterial agent for textiles. Moreover, the thermal properties and wettability of the textile after lignin coating were also investigated. This study showed that lignin isolation methods significantly contributed to the inhibition of bacterial growth in the clear zone diameter. In addition, the lignin structure, lignin concentration, and type of bacteria had notably different antibacterial effects. SEM images showed that lignin was successfully coated on the fiber, and the antibacterial textile was successfully fabricated with clear zones in the range of 0.1–0.5 cm against four different bacteria. Lignin did not significantly improve the thermal stability of the textile, as proven by the TGA results. After the HDTMS coating by dispersion method, the wettability of the lignin-textile improved to that of the hydrophobic material, with a contact angle greater than 119.05° with excellent antibacterial properties (clear zone of 0.1–0.43 cm).

中文翻译：

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来自 Acacia crassicarpa 黑液的木质素作为环境无害的抗菌剂生产抗菌和疏水纺织品的能力


最近，社会对织物利用的健康意识不断提高，导致对天然抗菌纺织品的需求不断增加。木质素本质上是一种丰富的多酚化合物，能够防止细菌生长;特别是，它与细菌紧密地一起栖息在人体皮肤上，例如表皮葡萄球菌、枯草芽孢杆菌、痤疮丙酸杆菌和金黄色葡萄球菌。然而，木质素的抗菌性能受到木质素浓度、来源和细菌类型等因素的限制。本研究旨在评价木质素作为纺织品抗菌剂的效力。此外，还研究了木质素涂层后纺织品的热性能和润湿性。这项研究表明，木质素分离方法对抑制透明区直径中的细菌生长有显著贡献。此外，木质素结构、木质素浓度和细菌类型具有显著不同的抗菌效果。SEM 图像显示，木质素成功地涂覆在纤维上，并成功制造了具有 0.1-0.5 cm 范围内针对四种不同细菌的透明区域的抗菌纺织品。正如 TGA 结果所证明的那样，木质素并没有显着提高纺织品的热稳定性。通过分散法进行 HDTMS 涂层后，木质素织物的润湿性优于疏水材料，接触角大于 119.05°，具有优异的抗菌性能（透明区为 0.1-0.43 cm）。