PDF(Pubmed)
Abstract：
Interest in the development of eco-friendly, sustainable, and convenient bio-based coatings to enhance flame retardancy and antibacterial properties in cotton fabrics is growing. In this work, chitosan was protonated at its amino groups using a method with a high atom economy using an equimolar amount of amino trimethylene phosphonic acid (ATMP), resulting in the fabrication of a single-component chitosan-based multifunctional coating (ATMP-CS), thereby avoiding any additional neutralization or purification steps. Cotton fabrics coated with various loads of ATMP-CS were prepared through a padding-drying-curing process. The morphology, thermal stability, mechanical properties, antibacterial properties, flame-retardant behavior, and flame-retardant mechanism of these fabrics were investigated. The coating exhibited excellent film-forming properties, and it imparted a uniform protective layer onto the surfaces of the cotton fabrics. When the load capacity reached 11.5%, the coated fabrics achieved a limiting oxygen index of 29.7% and successfully passed the VFT test. Moreover, the ATMP-CS coating demonstrated antibacterial rates against Escherichia coli and Staphylococcus aureus reaching 95.1% and 99.9%, respectively. This work presents a straightforward and gentle approach to fabricating colorless, environmentally friendly, and highly efficient fabric coatings that have potential applications in promoting the use of bio-based materials.
摘要：
对生态友好型发展的兴趣，可持续,和方便的生物基涂料，以提高阻燃和抗菌性能的棉织物正在增长。在这项工作中,使用等摩尔量的氨基三亚甲基膦酸（ATMP），使用具有高原子经济性的方法对壳聚糖的氨基进行质子化，导致制造单组分壳聚糖基多功能涂层（ATMP-CS），从而避免任何额外的中和或纯化步骤。通过填充-干燥-固化工艺制备了涂有各种负载的ATMP-CS的棉织物。形态学,热稳定性，机械性能，抗菌性能，阻燃性能,并对这些织物的阻燃机理进行了研究。该涂层表现出优异的成膜性能，在棉织物表面形成一层均匀的保护层。当负载能力达到11.5%时，涂层织物达到29.7%的极限氧指数并成功通过VFT测试。此外，ATMP-CS涂层对大肠杆菌和金黄色葡萄球菌的抗菌率分别达到95.1%和99.9%,分别。这项工作提出了一种简单而温和的方法来制造无色的，环保,和高效的织物涂层，在促进生物基材料的使用方面具有潜在的应用。
