Liu Xiangji, Jin Xin, Li Xu, Yang Chenghao, Lu Zhou, Dong Chaohong
College of Textile and Clothing, Institute of Functional Textiles and Advanced Materials, State Key Laboratory of Bio-fibers and Eco-textiles, Qingdao University, Qingdao 266071, China.
College of Chemistry and Chemical Engineering, Qingdao University, Qingdao 266071, China.
Int J Biol Macromol. 2025 Apr;302:140471. doi: 10.1016/j.ijbiomac.2025.140471. Epub 2025 Jan 28.
Due to the non-renewable nature of petroleum resources, there has been a notable shift toward utilizing biomass materials to confer flame retardant properties to cotton fabrics. However, endow solely with single function cannot meet the application requirements across various fields. Therefore, there is considerable impetus to develop multifunctional cotton fabrics integrating flame retardant, antimicrobial, and hydrophobic properties sourced from biomass. In this research, a flame retardant antimicrobial agent (β-TPDM-P) incorporating an N-halamine antimicrobial precursor was synthesized by modifying β-cyclodextrin (β-CD). Furthermore, β-CD's encapsulation capability was utilized to encapsulate calcium pyrophosphate particles. Subsequently, cotton fabrics underwent treatment through a conventional dip-dry-cure process, followed by chlorination and aminosilicone oil (ASO) spraying, resulting in multifunctional cotton fabrics that are flame-retardant, antimicrobial, and hydrophobic. Benefiting from double protection of the gas phase and the condensed phase, the LOI for the treated cotton fabrics reached 37.6 %. Moreover, the fabrics displayed self-extinguishing behavior in the vertical flame test. With reductions of 75.8 % in peak heat release rate (pHRR) and 42.9 % in total heat release (THR). Leveraging the potent antimicrobial properties of N-halamine, the multifunctional fabrics exhibited inhibition rates of 98.7 % and 99.9 % against E. coli and S. aureus. Introducing a low surface energy surface endowed the fabrics with high repellency to liquids, as evidenced by a water contact angle of 129°. Importantly, these enhancements were achieved without significantly altering the physical properties of the cotton fabrics. This study introduces a feasible strategy for realizing the multifunctionalization of cotton fabrics, thereby broadening their potential applications in various fields.
由于石油资源的不可再生性，人们已明显转向利用生物质材料赋予棉织物阻燃性能。然而，仅具备单一功能无法满足各个领域的应用需求。因此，大力推动开发具有阻燃、抗菌和疏水性能且源自生物质的多功能棉织物。本研究通过改性β-环糊精（β-CD）合成了一种含有N-卤胺抗菌前驱体的阻燃抗菌剂（β-TPDM-P）。此外，利用β-CD的包封能力包封焦磷酸钙颗粒。随后，棉织物通过传统的浸轧-烘焙工艺进行处理，接着进行氯化和氨基硅油（ASO）喷涂，从而制得具有阻燃、抗菌和疏水性能的多功能棉织物。受益于气相和凝聚相的双重保护，处理后的棉织物的极限氧指数达到了37.6%。此外，织物在垂直燃烧试验中表现出自熄行为。峰值热释放速率（pHRR）降低了75.8%，总热释放（THR）降低了42.9%。利用N-卤胺的强效抗菌性能，多功能织物对大肠杆菌和金黄色葡萄球菌的抑制率分别为98.7%和99.9%。引入低表面能表面使织物具有高拒液性，水接触角为129°即为证明。重要的是，这些性能提升并未显著改变棉织物的物理性能。本研究为实现棉织物的多功能化引入了一种可行策略，从而拓宽了其在各个领域的潜在应用。
