Sethulekshmi A S, Gopalsamy Selvakumar, Deeraj B D S, Joseph Kuruvilla, Aprem Abi Santhosh, Sisupal Suja Bhargavan, Jacob Febin P, Punetha Vinay Deep, Pathak Rakshit, Saritha Appukuttan
Department of Chemistry, Amrita Vishwa Vidyapeetham, Amritapuri, Kollam, Kerala, India.
Department of Textile Technology, PSG College of Technology, Coimbatore, Tamil Nadu, India.
Int J Biol Macromol. 2025 Jul;318(Pt 2):144878. doi: 10.1016/j.ijbiomac.2025.144878. Epub 2025 Jun 4.
Coating fabrics with natural rubber latex (NRL) dispersions containing various nanofillers offers a versatile approach for developing multifunctional fabrics. In this study, polyester/cotton blended fabrics were coated with NRL by incorporating 3 phr (parts per hundred rubber) of molybdenum disulfide-tannic acid dispersion (MT) and 7 phr of lignin nanoparticles (LNP) using a dipping method. Two types of coated fabric samples were prepared: single-cycle and double-cycle coated fabrics. Single-cycle coated fabrics were developed using NRL with a hybrid filler of MT and LNP (MLT). Two sets were prepared with sequential layers for double-cycle coated fabrics: one with an initial coating of NRL/MT followed by NRL/LNP, and the other with the reverse order. Single-cycle coated fabrics demonstrated superior mechanical strength (53 % improvement), acid durability, and UV-visible light shielding effectiveness due to the barrier effect of the hybrid MLT filler. In contrast, double-cycle coated fabrics exhibited excellent wound-healing potential, antimicrobial activity, and hydrophilicity. The single and double-cycle coated fabrics were non-toxic to cells and facilitated surface absorption of water and stains without penetration into the fabric, enabling effective stain removal and self-cleaning. Single-cycle coated fabrics are ideal for protective clothing applications, while double-cycle coated fabrics are better for biomedical applications.
用含有各种纳米填料的天然橡胶乳胶（NRL）分散体涂覆织物，为开发多功能织物提供了一种通用方法。在本研究中，采用浸渍法，通过加入3份每百份橡胶（phr）的二硫化钼 - 单宁酸分散体（MT）和7份木质素纳米颗粒（LNP），用NRL涂覆聚酯/棉混纺织物。制备了两种类型的涂覆织物样品：单循环和双循环涂覆织物。单循环涂覆织物是使用含有MT和LNP混合填料（MLT）的NRL制成的。双循环涂覆织物分两层顺序制备了两组：一组初始涂层为NRL/MT，然后是NRL/LNP，另一组顺序相反。由于混合MLT填料的阻隔作用，单循环涂覆织物表现出优异的机械强度（提高53%）、耐酸性和紫外 - 可见光屏蔽效果。相比之下，双循环涂覆织物具有出色的伤口愈合潜力、抗菌活性和亲水性。单循环和双循环涂覆织物对细胞无毒，促进水和污渍在表面吸收而不渗透到织物中，实现有效去污和自清洁。单循环涂覆织物适用于防护服应用，而双循环涂覆织物更适合生物医学应用。
